/* ===== 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-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

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

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

/* Hero Highlights/Achievement Badges */
.hero-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.highlight-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(14, 165, 233, 0.05);
    border: 1px solid rgba(14, 165, 233, 0.2);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    animation: fadeInUp 0.6s ease-out both;
}

.highlight-badge:nth-child(1) { animation-delay: 0.1s; }
.highlight-badge:nth-child(2) { animation-delay: 0.2s; }
.highlight-badge:nth-child(3) { animation-delay: 0.3s; }
.highlight-badge:nth-child(4) { animation-delay: 0.4s; }

.highlight-badge:hover {
    background: rgba(14, 165, 233, 0.1);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.2);
}

.badge-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.badge-icon i {
    font-size: 1.25rem;
    color: white;
}

.badge-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.badge-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.2;
}

.badge-detail {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.2;
}

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

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeIn 1s ease-out 0.3s both;
}

.hero-image-container {
    position: relative;
    width: 400px;
    height: 400px;
    animation: float 6s ease-in-out infinite;
}

.hero-image {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--primary-color);
    box-shadow: 0 0 60px rgba(14, 165, 233, 0.4), 0 0 100px rgba(14, 165, 233, 0.2);
    position: relative;
    z-index: 2;
}

.hero-image-border {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 110%;
    height: 110%;
    border: 2px solid rgba(14, 165, 233, 0.3);
    border-radius: 50%;
    animation: spin 20s linear infinite;
    z-index: 1;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    animation: bounce 2s infinite;
}

/* ===== 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;
}

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

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

/* Skill Constellation - Interactive 3D Animation */
.skill-constellation {
    width: 100%;
    aspect-ratio: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 1000px;
}

.constellation-center {
    position: absolute;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.center-core {
    width: 80px;
    height: 80px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    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);
    animation: coreGlow 3s ease-in-out infinite;
    position: relative;
    z-index: 3;
}

.center-core i {
    font-size: 2.5rem;
    color: white;
    animation: coreRotate 20s linear infinite;
}

@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 {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid rgba(14, 165, 233, 0.3);
    border-radius: 50%;
    animation: pulseRing 2s ease-out infinite;
}

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

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

/* Orbiting Nodes */
.orbit {
    position: absolute;
    border: 1px solid rgba(14, 165, 233, 0.15);
    border-radius: 50%;
    animation: orbit 12s linear infinite;
}

.orbit-1 { width: 160px; height: 160px; animation-duration: 10s; }
.orbit-2 { width: 200px; height: 200px; animation-duration: 12s; animation-direction: reverse; }
.orbit-3 { width: 240px; height: 240px; animation-duration: 14s; }
.orbit-4 { width: 280px; height: 280px; animation-duration: 16s; animation-direction: reverse; }
.orbit-5 { width: 320px; height: 320px; animation-duration: 18s; }
.orbit-6 { width: 360px; height: 360px; animation-duration: 20s; animation-direction: reverse; }

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

.tech-node {
    position: absolute;
    width: 50px;
    height: 50px;
    background: var(--dark-card);
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    top: -25px;
    left: 50%;
    margin-left: -25px;
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

.tech-node:hover {
    transform: scale(1.3);
    background: var(--accent-gradient);
    box-shadow: 0 8px 24px rgba(14, 165, 233, 0.6);
    z-index: 20;
}

.tech-node i {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: color 0.3s ease;
}

.tech-node:hover i {
    color: white;
}

.tech-node::after {
    content: attr(data-tech);
    position: absolute;
    top: -35px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--dark-card);
    color: var(--text-primary);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    border: 1px solid var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.tech-node:hover::after {
    opacity: 1;
}

/* Connecting Lines */
.connecting-line {
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg,
        transparent,
        rgba(14, 165, 233, 0.5),
        transparent);
    transform-origin: center;
    animation: lineFlow 3s ease-in-out infinite;
}

.line-1 {
    width: 200px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(30deg);
}

.line-2 {
    width: 250px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(90deg);
    animation-delay: 1s;
}

.line-3 {
    width: 180px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(150deg);
    animation-delay: 2s;
}

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

/* Floating Particles */
.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(14, 165, 233, 0.8);
    animation: floatParticle 15s ease-in-out infinite;
}

.particle-1 {
    top: 20%;
    left: 30%;
    animation-delay: 0s;
}

.particle-2 {
    top: 60%;
    left: 70%;
    animation-delay: 3s;
}

.particle-3 {
    top: 80%;
    left: 20%;
    animation-delay: 6s;
}

.particle-4 {
    top: 40%;
    left: 80%;
    animation-delay: 9s;
}

.particle-5 {
    top: 30%;
    left: 50%;
    animation-delay: 12s;
}

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

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

.about-bio p {
    color: var(--text-secondary);
    line-height: 1.8;
}

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

.about-right {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

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

.about-section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
}

/* Timeline */
.timeline {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.timeline-item {
    display: flex;
    gap: var(--spacing-md);
}

.timeline-icon {
    flex-shrink: 0;
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-full);
    background: rgba(14, 165, 233, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.25rem;
}

.timeline-content h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.timeline-org {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.timeline-date {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: 0.5rem;
}

.timeline-detail {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

/* Experience */
.experience-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.experience-item {
    padding: var(--spacing-md);
    background: rgba(14, 165, 233, 0.05);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--primary-color);
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}

.experience-header h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.experience-period {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.experience-org {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.experience-list {
    list-style: disc;
    padding-left: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.experience-list li {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

/* 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-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-visual {
        order: -1;
    }

    .hero-image-container {
        width: 300px;
        height: 300px;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .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);
    }

    .hero-highlights {
        grid-template-columns: 1fr;
    }

    .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;
    }

    /* Constellation responsive */
    .skill-constellation {
        max-width: 350px;
        margin: 0 auto;
    }

    .orbit-5,
    .orbit-6 {
        display: none;
    }

    .tech-node {
        width: 40px;
        height: 40px;
        margin-left: -20px;
        top: -20px;
    }

    .tech-node i {
        font-size: 1.2rem;
    }
}

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

    .hero-image-container {
        width: 250px;
        height: 250px;
    }
    
    .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);
    }
}
/* ===== ADDITIONAL STYLES FOR IMPROVED PORTFOLIO ===== */
/* Add these to your existing styles.css */

/* ===== HERO IMPROVEMENTS ===== */
.hero-trust-badges {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.trust-badge {
    display: inline-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, 0.3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--primary-color);
}

.trust-badge i {
    font-size: 0.875rem;
}

.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;
}

.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-trust-badges {
        justify-content: center;
    }

    .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;
    }
}

/* ===== LIGHT THEME ADJUSTMENTS ===== */
body.light-theme .trust-badge {
    background: rgba(14, 165, 233, 0.05);
}

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 {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.7;
    padding-left: var(--spacing-sm);
}

.exp-achievements li i {
    color: var(--accent-color);
    font-size: 1rem;
    margin-top: 3px;
    flex-shrink: 0;
}

.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);
    }
}

/* ===== 3D PARTICLE CANVAS BACKGROUND ===== */
.particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.4;
}

/* 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;
}

.hero-container {
    position: relative;
    z-index: 2;
}

/* 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);
    }
}

.hero-image-container {
    animation: float3D 6s ease-in-out infinite;
    transform-style: preserve-3d;
}

/* Skill Constellation Enhanced with 3D */
.skill-constellation {
    transform-style: preserve-3d;
    perspective: 1500px;
}

.tech-node {
    transform-style: preserve-3d;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.tech-node:hover {
    transform: scale(1.3) translateZ(30px);
}

/* 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) {
    .particle-canvas {
        opacity: 0.2;
    }

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

    .tech-node:hover {
        transform: scale(1.2);
    }
}

@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;
}