/* ===== CSS VARIABLES ===== */
:root {
    /* Colors */
    --primary-color: #0ea5e9;
    --primary-hover: #0284c7;
    --secondary-color: #2dd4bf;
    --dark-bg: #0a1628;
    --dark-card: #152238;
    --dark-card-hover: #1e3a52;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border-color: #1e3a52;
    --accent-gradient: linear-gradient(135deg, #0ea5e9 0%, #2dd4bf 100%);

    /* Glassmorphism */
    --glass-bg: rgba(21, 34, 56, 0.7);
    --glass-border: rgba(14, 165, 233, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(14, 165, 233, 0.15);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
}

/* Light Theme Variables */
body.light-theme {
    --dark-bg: #f8fafc;
    --dark-card: #ffffff;
    --dark-card-hover: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
    transition: var(--transition-base);
}

/* ===== UTILITY CLASSES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: var(--dark-card);
    border-color: var(--primary-color);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-sm);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.nav-brand i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.theme-toggle {
    padding: 0.5rem;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    background: var(--dark-card);
}

.theme-toggle:hover {
    color: var(--primary-color);
    background: var(--dark-card-hover);
}

.mobile-menu-toggle {
    display: none;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    background: var(--dark-card);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 6rem 2rem 4rem;
    overflow: hidden;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
}

/* ===== PROJECTS SECTION ===== */
.projects {
    padding: var(--spacing-2xl) 0;
}

.project-filters {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-full);
    background: var(--dark-card);
    color: var(--text-secondary);
    font-weight: 500;
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent-gradient);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.project-card {
    background: var(--dark-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
    animation: fadeInUp 0.5s ease-out both;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.project-image {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), rgba(45, 212, 191, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.project-placeholder {
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.5;
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 22, 40, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-base);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-content {
    padding: var(--spacing-lg);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.tag {
    padding: 0.25rem 0.75rem;
    background: rgba(14, 165, 233, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.project-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.project-meta i {
    color: var(--primary-color);
}

/* ===== SKILLS SECTION ===== */
.skills {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(to bottom, transparent, rgba(14, 165, 233, 0.05));
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.skill-card {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: var(--transition-base);
    animation: fadeInUp 0.5s ease-out both;
}

.skill-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.skill-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.skill-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.skill-tag {
    padding: 0.375rem 0.875rem;
    background: rgba(14, 165, 233, 0.1);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.skill-tag:hover {
    background: var(--primary-color);
    color: white;
}

/* ===== ABOUT SECTION ===== */
.about {
    padding: var(--spacing-2xl) 0;
}

@keyframes coreGlow {
    0%, 100% {
        box-shadow: 0 0 40px rgba(14, 165, 233, 0.6),
                    0 0 80px rgba(14, 165, 233, 0.3),
                    inset 0 0 20px rgba(255, 255, 255, 0.1);
    }
    50% {
        box-shadow: 0 0 60px rgba(14, 165, 233, 0.8),
                    0 0 120px rgba(14, 165, 233, 0.5),
                    inset 0 0 30px rgba(255, 255, 255, 0.2);
    }
}

@keyframes coreRotate {
    from { transform: rotateY(0deg); }
    to { transform: rotateY(360deg); }
}

.pulse-ring-2 {
    animation-delay: 1s;
}

@keyframes pulseRing {
    0% {
        transform: scale(0.8);
        opacity: 1;
    }
    100% {
        transform: scale(2);
        opacity: 0;
    }
}

@keyframes orbit {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes lineFlow {
    0%, 100% {
        opacity: 0.3;
    }
    50% {
        opacity: 0.8;
    }
}

@keyframes floatParticle {
    0%, 100% {
        transform: translate(0, 0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    50% {
        transform: translate(30px, -50px);
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
}

/* Strengths */
.strengths-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.strength-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.strength-item i {
    flex-shrink: 0;
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.strength-item h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.strength-item p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

/* ===== SERVICES SECTION ===== */
.services {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(to bottom, rgba(14, 165, 233, 0.05), transparent);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: var(--transition-base);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 4rem;
    height: 4rem;
    border-radius: var(--radius-lg);
    background: rgba(14, 165, 233, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
}

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.service-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.service-deliverables {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.service-deliverables li {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    padding-left: 1.5rem;
    position: relative;
}

.service-deliverables li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* ===== CONTACT SECTION ===== */
.contact {
    padding: var(--spacing-2xl) 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-2xl);
}

.contact-left {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-info-card {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
}

.contact-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
}

.contact-status i {
    color: #10b981;
}

.status-indicator {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: var(--radius-full);
    background: #10b981;
    animation: pulse 2s infinite;
}

.contact-info-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.contact-info-item i {
    flex-shrink: 0;
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.contact-info-item h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-info-item p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.contact-method:hover {
    background: var(--dark-card-hover);
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.contact-method i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

/* Contact Form */
.contact-form {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    background: rgba(14, 165, 233, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: var(--font-size-base);
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.form-group select option {
    background: #1a1a2e;
    color: #e2e8f0;
    padding: 0.5rem;
}

.form-group select option:hover,
.form-group select option:checked {
    background: #0ea5e9;
    color: white;
}

.budget-slider {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.budget-slider input[type="range"] {
    flex: 1;
    height: 0.5rem;
    background: var(--border-color);
    border-radius: var(--radius-full);
    outline: none;
}

.budget-slider input[type="range"]::-webkit-slider-thumb {
    width: 1.25rem;
    height: 1.25rem;
    background: var(--primary-color);
    border-radius: var(--radius-full);
    cursor: pointer;
}

.budget-value {
    min-width: 6rem;
    text-align: right;
    font-weight: 600;
    color: var(--primary-color);
}

.form-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.form-message.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--dark-card);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.footer-brand i {
    color: var(--primary-color);
}

.footer-tagline {
    color: var(--text-secondary);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer-column h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-column a {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.footer-column a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-md);
    background: rgba(14, 165, 233, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    transition: var(--transition-base);
}

.footer-social a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

/* ===== MODAL ===== */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(10px);
    z-index: 2000;
    padding: var(--spacing-xl);
    overflow-y: auto;
}

.modal.active {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    animation: fadeIn 0.3s ease-out;
    padding-top: 2rem;
    padding-bottom: 2rem;
}

.modal-content {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    max-width: 900px;
    width: 100%;
    position: relative;
    animation: slideUp 0.3s ease-out;
    max-height: calc(100vh - 4rem);
    overflow-y: auto;
    margin: auto 0;
}

.modal-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-md);
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.modal-close:hover {
    background: #ef4444;
    color: white;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes spin {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    
    .hero-cta {
        justify-content: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }
    
    .hero {
        padding: 5rem 1rem 3rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .project-filters {
        flex-direction: column;
    }
}

/* ===== PROJECT MODAL STYLES ===== */
.project-modal-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.project-modal-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-lg);
}

.project-modal-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(14, 165, 233, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.project-modal-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.project-modal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.project-modal-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.project-modal-section h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-color);
}

.project-modal-section p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.project-modal-section ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.project-modal-section ul li {
    color: var(--text-secondary);
    line-height: 1.8;
    padding-left: 1.5rem;
    position: relative;
}

.project-modal-section ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.project-modal-section ul li strong {
    color: var(--primary-color);
    font-weight: 600;
}

.project-modal-footer {
    background: rgba(14, 165, 233, 0.05);
    border: 1px solid rgba(14, 165, 233, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.project-modal-footer i {
    color: var(--primary-color);
    font-size: 1.25rem;
}

.project-modal-footer p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin: 0;
}

@media (max-width: 768px) {
    .modal {
        padding: var(--spacing-md);
    }
    
    .modal-content {
        padding: var(--spacing-lg);
    }
    
    .project-modal-title {
        font-size: var(--font-size-2xl);
    }
}

.hero-metrics {
    display: flex;
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
    flex-wrap: wrap;
}

.metric {
    display: flex;
    flex-direction: column;
}

.metric-value {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.metric-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

/* ===== RESULTS SECTION ===== */
.results {
    padding: var(--spacing-2xl) 0;
    background: var(--dark-bg);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

@media (max-width: 440px) {
    .results-grid {
        grid-template-columns: 1fr;
    }
}

.result-card {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
    transition: var(--transition-base);
    overflow: hidden;
    align-items: flex-start;
}

.result-card:hover {
    background: var(--dark-card-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.result-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    border-radius: var(--radius-lg);
    flex-shrink: 0;
}

.result-icon i {
    font-size: 1.5rem;
    color: white;
}

.result-metric {
    width: 100px;
    min-height: 90px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.15) 0%, rgba(99, 102, 241, 0.15) 100%);
    border-radius: var(--radius-lg);
    flex-shrink: 0;
    border: 1px solid rgba(14, 165, 233, 0.3);
    text-align: center;
}

.metric-number {
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    white-space: nowrap;
}

.result-step {
    display: block;
    margin-bottom: 0.5rem;
    text-align: left;
}

.result-step:last-child {
    margin-bottom: 0;
}

.metric-label {
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    font-weight: 600;
    margin-top: 4px;
    line-height: 1.2;
}

.result-content {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.result-headline {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.3;
}

.result-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.result-client {
    font-size: var(--font-size-xs);
    color: var(--primary-color);
    font-weight: 500;
    display: inline-block;
}

/* Clients Section */
.clients-section {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.clients-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-lg);
}

.clients-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-xl);
}

.client-logo {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.client-logo:hover {
    border-color: var(--primary-color);
}

.client-logo span {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== SERVICES SECTION ===== */
.services {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--dark-card) 100%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: var(--transition-base);
}

.service-card:hover {
    background: var(--dark-card-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(14, 165, 233, 0.1);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
}

.service-icon i {
    font-size: 1.75rem;
    color: var(--primary-color);
}

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.service-description {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.service-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.service-features li i {
    color: var(--secondary-color);
    font-size: 0.75rem;
}

/* ===== IMPROVED CONTACT STYLES ===== */
.availability-card {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1) 0%, rgba(45, 212, 191, 0.1) 100%);
    border: 1px solid rgba(14, 165, 233, 0.3);
}

.availability-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.availability-header i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

.availability-header h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.availability-text {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.availability-note {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--secondary-color);
    padding: var(--spacing-sm);
    background: rgba(45, 212, 191, 0.1);
    border-radius: var(--radius-md);
}

.availability-note i {
    font-size: 0.875rem;
}

/* Form improvements */
#organization {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: var(--transition-base);
}

#organization:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

/* ===== RESPONSIVE ADJUSTMENTS ===== */
@media (max-width: 768px) {

    .hero-metrics {
        justify-content: center;
        gap: var(--spacing-lg);
    }

    .metric {
        text-align: center;
        min-width: 120px;
    }

    .metric-value {
        font-size: var(--font-size-3xl);
    }

    .results-grid {
        grid-template-columns: 1fr;
    }

    .result-card {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

    .result-icon {
        margin: 0 auto;
    }

    .result-metric {
        margin: 0 auto;
        width: 120px;
        min-height: 80px;
    }

    .metric-number {
        font-size: 1.5rem;
    }

    .metric-label {
        font-size: 0.6rem;
    }

    .result-content {
        width: 100%;
    }

    .clients-logos {
        gap: var(--spacing-md);
    }

    .services-grid {
        grid-template-columns: 1fr;
    }
}

body.light-theme .result-card,
body.light-theme .service-card,
body.light-theme .client-logo {
    background: var(--dark-card);
}

body.light-theme .availability-card {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.05) 0%, rgba(45, 212, 191, 0.05) 100%);
}

body.light-theme .availability-note {
    background: rgba(45, 212, 191, 0.05);
}

body.light-theme .service-icon {
    background: rgba(14, 165, 233, 0.05);
}

body.light-theme .form-group select option {
    background: #ffffff;
    color: #1a1a2e;
}

body.light-theme .form-group select option:hover,
body.light-theme .form-group select option:checked {
    background: #0ea5e9;
    color: white;
}

/* ===== FEATURED PROJECT BADGE ===== */
.featured-project {
    position: relative;
    border: 2px solid var(--primary-color);
    box-shadow: 0 0 30px rgba(14, 165, 233, 0.3);
}

.project-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--accent-gradient);
    color: white;
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    z-index: 10;
    box-shadow: var(--shadow-md);
    animation: pulse 2s infinite;
}

@keyframes pulse-badge {
    0%, 100% {
        box-shadow: 0 0 10px rgba(14, 165, 233, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(14, 165, 233, 0.8);
    }
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(180deg, var(--dark-card) 0%, var(--dark-bg) 100%);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.testimonial-card {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 20px;
    font-size: 120px;
    color: rgba(14, 165, 233, 0.1);
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.testimonial-stars {
    display: flex;
    gap: 0.25rem;
    color: #fbbf24;
}

.testimonial-stars i {
    font-size: 1rem;
}

.testimonial-text {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: var(--font-size-base);
    font-style: italic;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.author-info {
    flex: 1;
}

.author-name {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.author-role {
    font-size: var(--font-size-sm);
    color: var(--primary-color);
}

/* ===== ANIMATED COUNTER ===== */
@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.metric-value[data-target] {
    animation: countUp 0.6s ease-out;
}

/* ===== RESPONSIVE TESTIMONIALS ===== */
@media (max-width: 768px) {
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .testimonial-card::before {
        font-size: 80px;
        top: -10px;
    }
}

/* ===== GITHUB ACTIVITY SECTION ===== */
.github-activity {
    padding: var(--spacing-2xl) 0;
    background: var(--dark-bg);
}

.github-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-2xl);
}

.github-card {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    transition: var(--transition-base);
}

.github-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.github-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.github-header i {
    font-size: 2rem;
    color: var(--primary-color);
}

.github-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.github-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.github-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(14, 165, 233, 0.05);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--primary-color);
    transition: var(--transition-base);
}

.highlight-item:hover {
    background: rgba(14, 165, 233, 0.1);
    transform: translateX(4px);
}

.highlight-item i {
    color: var(--primary-color);
    font-size: 1rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.highlight-item span {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.stat-label-inline {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.tech-highlights {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.highlights-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.tech-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.tech-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.tech-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.tech-item span {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-primary);
}

.tech-bar {
    width: 100%;
    height: 8px;
    background: rgba(14, 165, 233, 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.tech-bar-fill {
    height: 100%;
    background: var(--accent-gradient);
    border-radius: var(--radius-full);
    transition: width 1.5s ease-out;
    animation: fillBar 1.5s ease-out;
}

@keyframes fillBar {
    from {
        width: 0%;
    }
}

/* ===== RESPONSIVE GITHUB SECTION ===== */
@media (max-width: 1024px) {
    .github-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .github-stats {
        flex-direction: column;
    }

    .stat-number {
        font-size: var(--font-size-2xl);
    }
}

/* ===== CERTIFICATIONS SECTION ===== */
.certifications {
    padding: var(--spacing-section) 0;
    background: var(--bg-primary);
}

/* Certificate Filters */
.cert-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.cert-filter-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.cert-filter-btn i {
    font-size: 1rem;
}

.cert-filter-btn:hover {
    background: rgba(14, 165, 233, 0.1);
    border-color: var(--accent-color);
    color: var(--accent-color);
    transform: translateY(-2px);
}

.cert-filter-btn.active {
    background: var(--accent-gradient);
    border-color: var(--accent-color);
    color: var(--text-primary);
    box-shadow: 0 0 20px rgba(14, 165, 233, 0.3);
}

.cert-count {
    opacity: 0.7;
    font-size: var(--font-size-xs);
}

/* Certificates Grid */
.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

/* Certificate Card */
.cert-card {
    position: relative;
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.cert-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(14, 165, 233, 0.2);
}

/* Featured Certificate */
.cert-card.featured-cert {
    border: 2px solid var(--accent-color);
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.05), rgba(6, 182, 212, 0.05));
}

.cert-badge {
    position: absolute;
    top: -12px;
    right: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--accent-gradient);
    color: var(--text-primary);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.4);
}

/* Certificate Provider */
.cert-provider {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--accent-color);
    font-weight: 600;
}

.cert-provider i {
    font-size: 1.25rem;
}

/* Certificate Title */
.cert-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    margin: 0;
}

/* Certificate Tags */
.cert-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.cert-tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.2);
    border-radius: var(--radius-md);
    color: var(--accent-color);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

/* Certificate Links */
.cert-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--accent-gradient);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    transition: all var(--transition-normal);
    margin-top: auto;
    justify-content: center;
}

.cert-link:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.4);
}

.cert-link i {
    font-size: 0.875rem;
}

/* Placeholder Link */
.cert-link.placeholder-link {
    background: rgba(234, 179, 8, 0.1);
    border: 1px solid rgba(234, 179, 8, 0.3);
    color: rgb(234, 179, 8);
    cursor: not-allowed;
}

.cert-link.placeholder-link:hover {
    transform: none;
    box-shadow: none;
}

/* Info Link */
.cert-link.info-link {
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.3);
    color: rgb(139, 92, 246);
    cursor: help;
}

.cert-link.info-link:hover {
    transform: none;
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.3);
}

/* Certificate Actions */
.cert-actions {
    text-align: center;
    padding-top: var(--spacing-lg);
}

.cert-summary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.cert-summary i {
    color: var(--accent-color);
    font-size: 1rem;
}

.cert-summary strong {
    color: var(--text-primary);
}

/* Hide filtered certificates */
.cert-card.hidden {
    display: none;
}

/* Staggered Animation */
.cert-card:nth-child(1) { animation-delay: 0.1s; }
.cert-card:nth-child(2) { animation-delay: 0.2s; }
.cert-card:nth-child(3) { animation-delay: 0.3s; }
.cert-card:nth-child(4) { animation-delay: 0.4s; }
.cert-card:nth-child(5) { animation-delay: 0.5s; }
.cert-card:nth-child(6) { animation-delay: 0.6s; }

/* ===== RESPONSIVE CERTIFICATIONS ===== */
@media (max-width: 1024px) {
    .certificates-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .cert-filters {
        gap: var(--spacing-xs);
    }

    .cert-filter-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
    }

    .cert-filter-btn i {
        font-size: 0.875rem;
    }

    .certificates-grid {
        grid-template-columns: 1fr;
    }

    .cert-card {
        padding: var(--spacing-md);
    }

    .cert-title {
        font-size: var(--font-size-base);
    }
}

@media (max-width: 480px) {
    .cert-count {
        display: none;
    }

    .cert-filter-btn {
        flex: 1 1 auto;
        min-width: 120px;
    }
}

/* ===== SECTION DIVIDER ===== */
.section-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-2xl) 0;
    background: var(--dark-bg);
}

.divider-line {
    flex: 1;
    max-width: 200px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
}

.divider-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.2) 0%, rgba(99, 102, 241, 0.2) 100%);
    border: 1px solid rgba(14, 165, 233, 0.3);
    border-radius: 50%;
    color: var(--primary-color);
    font-size: 1.25rem;
}

/* ===== WORK EXPERIENCE SECTION ===== */
.experience {
    padding: var(--spacing-section) 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.experience-timeline {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    position: relative;
}

/* Timeline connector line */
.experience-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg,
        var(--accent-color),
        rgba(14, 165, 233, 0.5),
        rgba(14, 165, 233, 0.2));
    border-radius: var(--radius-full);
}

/* Experience Card */
.experience-card {
    position: relative;
    padding: var(--spacing-xl);
    padding-left: calc(var(--spacing-xl) + 40px);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.experience-card::before {
    content: '';
    position: absolute;
    left: -9px;
    top: var(--spacing-xl);
    width: 20px;
    height: 20px;
    background: var(--accent-gradient);
    border: 3px solid var(--bg-primary);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--bg-secondary),
                0 0 20px rgba(14, 165, 233, 0.5);
    z-index: 2;
}

.experience-card:hover {
    transform: translateX(10px);
    border-color: var(--accent-color);
    box-shadow: 0 10px 40px rgba(14, 165, 233, 0.2);
}

.experience-card:hover::before {
    transform: scale(1.3);
    box-shadow: 0 0 0 4px var(--bg-secondary),
                0 0 30px rgba(14, 165, 233, 0.8);
}

/* Highlight Card (Parks Victoria Emergency Response) */
.experience-card.highlight-card {
    background: linear-gradient(135deg,
        rgba(14, 165, 233, 0.05),
        rgba(6, 182, 212, 0.05));
    border: 2px solid var(--accent-color);
    box-shadow: 0 0 30px rgba(14, 165, 233, 0.2);
}

.experience-card.highlight-card::before {
    width: 24px;
    height: 24px;
    left: -11px;
    background: linear-gradient(135deg, #ef4444, #f97316);
    animation: pulseGlow 2s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% {
        box-shadow: 0 0 0 4px var(--bg-secondary),
                    0 0 20px rgba(239, 68, 68, 0.5);
    }
    50% {
        box-shadow: 0 0 0 4px var(--bg-secondary),
                    0 0 35px rgba(239, 68, 68, 0.8);
    }
}

.exp-badge {
    position: absolute;
    top: -12px;
    right: var(--spacing-lg);
    padding: var(--spacing-xs) var(--spacing-md);
    background: linear-gradient(135deg, #ef4444, #f97316);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 700;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}

/* Experience Header */
.exp-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.exp-title-group {
    flex: 1;
}

.exp-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--spacing-xs) 0;
    line-height: 1.3;
}

.exp-company {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-base);
    color: var(--accent-color);
    font-weight: 600;
    margin: 0;
}

.exp-company i {
    font-size: 1.1rem;
}

.exp-period {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.2);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
}

.exp-period i {
    color: var(--accent-color);
}

/* Experience Tags */
.exp-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.exp-tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.2);
    border-radius: var(--radius-md);
    color: var(--accent-color);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

/* Experience Content */
.exp-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.exp-description {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    line-height: 1.7;
    margin: 0;
}

.exp-achievements {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.exp-achievements li {
    position: relative;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.7;
    padding-left: calc(var(--spacing-sm) + 1.5rem);
}

.exp-achievements li > i {
    position: absolute;
    left: var(--spacing-sm);
    top: 0.3em;
    color: var(--accent-color);
    font-size: 1rem;
}

.exp-achievements li strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Emergency Response Special Icon */
.experience-card.highlight-card .exp-achievements li:first-child i {
    color: #ef4444;
}

/* Experience Summary Stats */
.experience-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
}

.summary-stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(14, 165, 233, 0.05);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.summary-stat:hover {
    background: rgba(14, 165, 233, 0.1);
    transform: translateY(-3px);
}

.summary-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.summary-icon i {
    font-size: 1.5rem;
    color: white;
}

.summary-content {
    flex: 1;
}

.summary-number {
    font-size: var(--font-size-xl);
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0 0 var(--spacing-xs) 0;
    line-height: 1.2;
}

.summary-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.4;
}

/* Staggered Animation for Experience Cards */
.experience-card:nth-child(1) { animation-delay: 0.1s; }
.experience-card:nth-child(2) { animation-delay: 0.2s; }
.experience-card:nth-child(3) { animation-delay: 0.3s; }
.experience-card:nth-child(4) { animation-delay: 0.4s; }
.experience-card:nth-child(5) { animation-delay: 0.5s; }
.experience-card:nth-child(6) { animation-delay: 0.6s; }

/* ===== RESPONSIVE EXPERIENCE SECTION ===== */
@media (max-width: 1024px) {
    .experience-summary {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .experience-timeline::before {
        display: none;
    }

    .experience-card {
        padding: var(--spacing-md);
        padding-left: var(--spacing-md);
    }

    .experience-card::before {
        display: none;
    }

    .experience-card:hover {
        transform: translateY(-5px);
    }

    .exp-header {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .exp-period {
        align-self: flex-start;
    }

    .exp-title {
        font-size: var(--font-size-lg);
    }

    .exp-badge {
        font-size: 0.65rem;
        padding: 0.25rem 0.5rem;
        right: var(--spacing-sm);
    }

    .experience-summary {
        grid-template-columns: 1fr;
        padding: var(--spacing-md);
    }

    .summary-stat {
        padding: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .exp-tags {
        gap: 0.25rem;
    }

    .exp-tag {
        font-size: 0.65rem;
        padding: 0.25rem 0.5rem;
    }

    .summary-icon {
        width: 40px;
        height: 40px;
    }

    .summary-icon i {
        font-size: 1.2rem;
    }

    .summary-number {
        font-size: var(--font-size-lg);
    }
}

/* Glassmorphism Effects */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

/* 3D Transform Effects */
.card-3d {
    transform-style: preserve-3d;
    perspective: 1000px;
    transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

.card-3d:hover {
    transform: translateZ(20px) rotateX(5deg) rotateY(5deg);
}

/* Parallax Layers */
.parallax-layer {
    will-change: transform;
    transition: transform 0.3s cubic-bezier(0.23, 1, 0.32, 1);
}

/* Enhanced Navbar with Glassmorphism */
.navbar {
    position: relative;
    z-index: 100;
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

/* Enhanced Hero Section with Depth */
.hero {
    position: relative;
    z-index: 1;
}

/* Project Cards with 3D Tilt */
.project-card {
    transform-style: preserve-3d;
    transition: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

.project-card:hover {
    transform: translateY(-10px) rotateX(2deg);
}

/* Floating Animation for Hero Elements */
@keyframes float3D {
    0%, 100% {
        transform: translateY(0px) rotateX(0deg);
    }
    50% {
        transform: translateY(-20px) rotateX(5deg);
    }
}

/* Certificate Cards with Depth */
.cert-card {
    transform-style: preserve-3d;
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.cert-card:hover {
    transform: translateY(-8px) rotateX(3deg) scale(1.02);
}

/* Experience Cards with 3D Effect */
.experience-card {
    transform-style: preserve-3d;
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.experience-card:hover {
    transform: translateX(15px) rotateY(-2deg) translateZ(10px);
}

/* Testimonial Cards with Tilt */
.testimonial-card {
    transform-style: preserve-3d;
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.testimonial-card:hover {
    transform: translateY(-8px) rotateX(-2deg) scale(1.02);
}

/* Glow Effects */
.glow-on-hover {
    position: relative;
    transition: all 0.3s ease;
}

.glow-on-hover::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--accent-gradient);
    border-radius: inherit;
    opacity: 0;
    filter: blur(20px);
    transition: opacity 0.3s ease;
    z-index: -1;
}

.glow-on-hover:hover::before {
    opacity: 0.7;
}

/* Morphing Background Shapes */
@keyframes morph {
    0%, 100% {
        border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    }
    50% {
        border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
    }
}

.morphing-shape {
    animation: morph 8s ease-in-out infinite;
    background: var(--accent-gradient);
    filter: blur(60px);
    opacity: 0.15;
}

/* Depth Layering */
.layer-1 { z-index: 1; }
.layer-2 { z-index: 2; }
.layer-3 { z-index: 3; }
.layer-4 { z-index: 4; }
.layer-5 { z-index: 5; }

/* Responsive 3D Effects */
@media (max-width: 768px) {

    .card-3d:hover,
    .project-card:hover,
    .cert-card:hover,
    .experience-card:hover,
    .testimonial-card:hover {
        transform: translateY(-5px);
    }
}

@media (prefers-reduced-motion: reduce) {
    .particle-canvas,
    .float3D,
    .morph,
    .parallax-layer {
        animation: none;
        transition: none;
    }
}


/* ===== COLLAPSIBLE SECTIONS ===== */
.collapsible-section {
    position: relative;
}

.section-preview {
    position: relative;
}

.section-expanded {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.section-expanded.active {
    max-height: 10000px;
}

.expand-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    margin: var(--spacing-xl) auto 0;
    background: var(--accent-gradient);
    color: var(--text-primary);
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

.expand-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(14, 165, 233, 0.5);
}

.expand-btn i {
    transition: transform 0.3s ease;
}

.expand-btn.active i {
    transform: rotate(180deg);
}

.expand-btn-container {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* Fade-out effect for preview */
.section-preview::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to bottom, transparent, var(--bg-primary));
    pointer-events: none;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.section-preview.expanded::after {
    opacity: 0;
}

/* Preview Badge */
.preview-badge {
    position: absolute;
    top: -8px;
    left: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 700;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
    z-index: 10;
}

/* ===== Small-screen overflow fixes ===== */
@media (max-width: 480px) {

    .cert-summary {
        max-width: 100%;
        flex-wrap: wrap;
        white-space: normal;
    }
}

/* Keep decorative orbit animation and link rows inside the viewport */
.hero,
.about {
    overflow-x: clip;
}

.project-meta {
    flex-wrap: wrap;
    row-gap: var(--spacing-xs);
}

@media (max-width: 480px) {
    .exp-period {
        max-width: 100%;
        white-space: normal;
    }
}

/* Open-source package cards (replace self-rated skill bars) */
a.tech-item {
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

a.tech-item:hover {
    border-color: var(--primary-color);
}

.tech-item small {
    color: var(--text-secondary);
    font-weight: 400;
}

/* ===== HOW I OPTIMISE — CASE GALLERY ===== */
.optimise-carousel {
    margin: 0 0 var(--spacing-2xl);
}

.results-grid.carousel-track {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    overflow-x: auto;
    overflow-y: hidden;
    transition: height 0.3s ease;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    scrollbar-width: none;
    margin: 0;
    padding: 0;
    outline: none;
}

.results-grid.carousel-track::-webkit-scrollbar {
    display: none;
}

.results-grid.carousel-track:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 4px;
    border-radius: var(--radius-xl);
}

/* Slide: identity on the left, the three-step story on the right */
.carousel-track .result-card {
    flex: 0 0 100%;
    scroll-snap-align: start;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
        "tag   client"
        "title title"
        "steps steps";
    column-gap: 1.5rem;
    row-gap: 0.6rem;
    align-items: center;
    align-content: start;
    text-align: left;
    padding: 2rem 2.25rem;
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
}

.carousel-track .result-card:hover {
    transform: none;
    box-shadow: none;
    background: var(--dark-card);
}

.carousel-track .result-content {
    display: contents;
}

.carousel-track .result-metric {
    grid-area: tag;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    justify-self: start;
    gap: 0.55rem;
    width: auto;
    min-height: 0;
    margin: 0;
    padding: 0;
    background: none;
    border: none;
}

.carousel-track .metric-number {
    font-size: 1.05rem;
    line-height: 1;
}

.carousel-track .metric-label {
    margin: 0;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0;
    text-transform: none;
    color: var(--primary-color);
}

.carousel-track .result-headline {
    grid-area: title;
    margin: 0;
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.01em;
    text-wrap: balance;
}

.carousel-track .result-client {
    grid-area: client;
    justify-self: end;
    text-align: right;
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--text-secondary);
    line-height: 1.5;
}

.carousel-track .result-client b {
    color: var(--text-primary);
    font-weight: 600;
}

.carousel-track .result-client a {
    color: var(--primary-color);
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* The story: problem -> what I did -> safeguard, as a short timeline */
.carousel-track .result-description {
    grid-area: steps;
    display: grid;
    margin: 0.9rem 0 0;
    padding-left: 2rem;
    border-left: 1px solid var(--border-color);
    font-size: 0.95rem;
    line-height: 1.6;
}

.carousel-track .result-step {
    position: relative;
    display: grid;
    grid-template-columns: 6.5rem minmax(0, 68ch);
    column-gap: 1.25rem;
    margin: 0;
    padding: 0.85rem 0;
    color: var(--text-secondary);
    text-align: left;
}

.carousel-track .result-step + .result-step {
    border-top: 1px solid rgba(30, 58, 82, 0.6);
}

.carousel-track .result-step:first-child {
    padding-top: 0;
}

.carousel-track .result-step:last-child {
    padding-bottom: 0;
}

.carousel-track .result-step::before {
    content: "";
    position: absolute;
    left: calc(-2rem - 4.5px);
    top: calc(0.85rem + 0.45em);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--dark-card);
    border: 2px solid var(--primary-color);
}

.carousel-track .result-step:first-child::before {
    top: 0.45em;
}

.carousel-track .result-step strong {
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 600;
}

/* Navigation: project tabs + arrows under the slide */
.carousel-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.carousel-dots {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.carousel-dot {
    padding: 0.4rem 0.85rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    background: transparent;
    color: var(--text-secondary);
    font: inherit;
    font-size: 0.8125rem;
    font-weight: 500;
    white-space: nowrap;
    cursor: pointer;
    transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.carousel-dot:hover {
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.carousel-dot.active {
    color: var(--text-primary);
    border-color: var(--primary-color);
    background: rgba(14, 165, 233, 0.14);
}

.carousel-arrows {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.carousel-btn {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color var(--transition-fast), color var(--transition-fast);
}

.carousel-btn:hover:not(:disabled) {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.carousel-btn:disabled {
    opacity: 0.35;
    cursor: default;
}

.carousel-dot:focus-visible,
.carousel-btn:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

@media (max-width: 860px) {
    .carousel-track .result-card {
        grid-template-columns: minmax(0, 1fr);
        grid-template-rows: auto;
        grid-template-areas:
            "tag"
            "title"
            "steps"
            "client";
        row-gap: 0.5rem;
        padding: 1.25rem 1rem;
    }

    .carousel-track .result-headline {
        font-size: 1.2rem;
    }

    .carousel-track .result-description {
        padding-left: 1rem;
        margin-top: 0.4rem;
        font-size: 0.85rem;
        line-height: 1.5;
    }

    .carousel-track .result-step {
        grid-template-columns: minmax(0, 1fr);
        row-gap: 0.1rem;
        padding: 0.6rem 0;
    }

    .carousel-track .result-step:not(:first-child)::before {
        top: calc(0.6rem + 0.4em);
    }

    .carousel-track .result-step::before {
        left: calc(-1rem - 4.5px);
    }

    .carousel-track .result-client {
        justify-self: start;
        text-align: left;
        padding-top: 0.25rem;
    }

    .carousel-dots {
        flex-wrap: nowrap;
        overflow-x: auto;
        scrollbar-width: none;
        padding-bottom: 2px;
    }

    .carousel-dots::-webkit-scrollbar {
        display: none;
    }

    .carousel-arrows {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .results-grid.carousel-track {
        scroll-behavior: auto;
        transition: none;
    }
}

/* ===== Certifications: folded list ===== */
.cert-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.cert-toggle[hidden] {
    display: none;
}

/* ===== Experience: calmer timeline, folded earlier roles ===== */
.experience-timeline {
    gap: var(--spacing-md);
}

.experience-card,
.experience-card:hover {
    transform: none;
}

.exp-badge {
    background: rgba(14, 165, 233, 0.15);
    color: var(--primary-color);
    border: 1px solid rgba(14, 165, 233, 0.4);
    box-shadow: none;
    text-transform: none;
    letter-spacing: 0;
    font-weight: 600;
}

.timeline-group-title {
    margin: var(--spacing-lg) 0 0;
    padding-left: calc(var(--spacing-xl) + 40px);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
}

.timeline-group-title span {
    font-weight: 400;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

details.exp-fold {
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
}

details.exp-fold > summary.exp-header {
    display: flex;
    align-items: center;
    margin: 0;
    cursor: pointer;
    list-style: none;
    padding-right: 2rem;
    position: relative;
}

details.exp-fold > summary.exp-header::-webkit-details-marker {
    display: none;
}

details.exp-fold > summary.exp-header::after {
    content: "\f078";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: transform var(--transition-fast);
}

details.exp-fold[open] > summary.exp-header {
    margin-bottom: var(--spacing-md);
}

details.exp-fold[open] > summary.exp-header::after {
    transform: translateY(-50%) rotate(180deg);
}

details.exp-fold .exp-title {
    font-size: var(--font-size-lg);
    margin-bottom: 0.15rem;
}

details.exp-fold .exp-company {
    font-size: var(--font-size-sm);
}

details.exp-fold > summary.exp-header:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

details.exp-fold .exp-badge {
    position: static;
    margin-right: var(--spacing-sm);
    order: 2;
}

/* ===== Skills: one scannable list (category | tools) ===== */
.skills .skills-grid {
    display: block;
    margin: 0;
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xs) var(--spacing-lg);
}

.skills .skill-card {
    display: grid;
    grid-template-columns: 2rem 15rem minmax(0, 1fr);
    align-items: baseline;
    column-gap: var(--spacing-sm);
    padding: var(--spacing-md) 0;
    background: none;
    border: none;
    border-radius: 0;
    animation: none;
}

.skills .skill-card + .skill-card {
    border-top: 1px solid var(--border-color);
}

.skills .skill-card:hover {
    transform: none;
    box-shadow: none;
}

.skills .skill-icon {
    font-size: 1.1rem;
    margin: 0;
}

.skills .skill-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin: 0;
    line-height: 1.4;
}

.skills .skill-tags {
    gap: 0.4rem;
}

.skills .skill-tag {
    padding: 0.2rem 0.6rem;
    font-size: 0.8125rem;
    color: var(--text-primary);
    background: rgba(14, 165, 233, 0.08);
    border: 1px solid rgba(14, 165, 233, 0.18);
}

.skills .skill-tag:hover {
    background: rgba(14, 165, 233, 0.08);
    color: var(--text-primary);
    transform: none;
}

@media (max-width: 768px) {
    .skills .skills-grid {
        padding: var(--spacing-xs) var(--spacing-md);
    }

    .skills .skill-card {
        grid-template-columns: 1.75rem minmax(0, 1fr);
        row-gap: var(--spacing-xs);
    }

    .skills .skill-tags {
        grid-column: 1 / -1;
    }
}


/* ===== Section rhythm: editorial headers, alternating bands, one map motif ===== */
:root {
    --band-bg: #0e1d34;
}

.section-header {
    text-align: left;
    margin: 0 0 var(--spacing-xl);
}

.section-title {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    letter-spacing: -0.01em;
    margin-bottom: var(--spacing-xs);
    background: none;
    -webkit-text-fill-color: var(--text-primary);
    color: var(--text-primary);
}

.section-subtitle {
    max-width: 62ch;
    margin: 0;
    font-size: var(--font-size-base);
    line-height: 1.6;
}

/* Bands alternate so each section reads as its own block */
#results,
#experience,
#certifications {
    background: var(--band-bg);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

#about,
#projects,
#skills,
#contact {
    background: var(--dark-bg);
}

/* Faint topographic contours behind "How I Optimise" — the one map motif */
#results {
    background-image: url("data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" width="1100" height="640" viewBox="0 0 1100 640"%3E%3Cg fill="none" stroke="#0ea5e9" stroke-opacity="0.07" stroke-width="1"%3E%3Cpath d="M297.0,210.0 L297.8,212.4 L297.9,215.0 L297.4,217.4 L296.2,219.8 L294.4,221.9 L292.2,223.8 L289.7,225.4 L287.1,226.8 L284.4,228.1 L281.9,229.3 L279.3,230.4 L276.8,231.6 L274.2,232.6 L271.6,233.6 L268.8,234.3 L265.9,234.9 L263.0,235.2 L260.0,235.2 L257.1,234.9 L254.2,234.5 L251.3,234.0 L248.5,233.4 L245.6,232.8 L242.7,232.2 L239.7,231.5 L236.7,230.6 L233.7,229.5 L230.9,228.1 L228.4,226.4 L226.5,224.3 L225.1,222.1 L224.4,219.6 L224.4,217.1 L224.9,214.6 L225.7,212.2 L226.8,210.0 L227.9,207.9 L228.8,205.9 L229.6,204.0 L230.2,202.0 L230.8,199.9 L231.4,197.8 L232.2,195.6 L233.3,193.4 L234.8,191.3 L236.7,189.5 L239.1,187.9 L241.7,186.5 L244.6,185.5 L247.6,184.7 L250.6,184.1 L253.7,183.7 L256.9,183.4 L260.0,183.2 L263.2,183.1 L266.3,183.3 L269.5,183.8 L272.5,184.6 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        background-size: 700px auto;
        background-position: right -260px top -60px;
    }
}

/* ===== Projects: shorter cards on small screens, visible actions on touch ===== */
@media (max-width: 768px) {
    .project-image {
        height: 88px;
    }

    .project-placeholder {
        font-size: 2.25rem;
    }

    .project-content {
        padding: var(--spacing-md);
    }

    .project-description {
        font-size: 0.9rem;
        line-height: 1.55;
    }

    .project-tags {
        margin-bottom: var(--spacing-sm);
    }
}

/* Touch screens have no hover, so keep "View Details" visible */
@media (hover: none) {
    .project-overlay {
        opacity: 1;
        background: none;
        justify-content: flex-end;
        align-items: flex-end;
        padding: 0.75rem;
    }
}

/* Packages: a grid instead of one tall column */
.projects-packages .tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

@media (max-width: 768px) {
    .projects-packages .github-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .projects-packages .tech-grid {
        grid-template-columns: 1fr 1fr;
    }
}