:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;

    --text-primary: #ffffff;
    --text-secondary: #b8b8c8;
    --text-muted: #6b6b7b;

    --accent-cyan: #00f5ff;
    --accent-purple: #a855f7;
    --accent-pink: #ec4899;
    --accent-blue: #3b82f6;

    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-bg-hover: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(255, 255, 255, 0.15);

    --glow-cyan: rgba(0, 245, 255, 0.5);
    --glow-purple: rgba(168, 85, 247, 0.5);
    --glow-pink: rgba(236, 72, 153, 0.4);

    --container-width: 1200px;
    --section-padding: clamp(60px, 8vw, 100px) 20px;
    --nav-height: 70px;

    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.3);
}

[data-theme="light"] {
    --bg-primary: #f4f4f9;
    --bg-secondary: #e8e8f0;
    --bg-tertiary: #dcdce6;

    --text-primary: #1a1a2e;
    --text-secondary: #4a4a5a;
    --text-muted: #888898;

    --glass-bg: rgba(0, 0, 0, 0.03);
    --glass-bg-hover: rgba(0, 0, 0, 0.06);
    --glass-border: rgba(0, 0, 0, 0.08);
    --glass-border-hover: rgba(0, 0, 0, 0.15);

    --glow-cyan: rgba(0, 200, 220, 0.4);
    --glow-purple: rgba(140, 60, 220, 0.3);
    --glow-pink: rgba(200, 50, 120, 0.3);

    --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.08);
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    transition: background var(--transition-medium), color var(--transition-medium);
}

body * {
    max-width: 100%;
}

::selection {
    background: var(--accent-cyan);
    color: var(--bg-primary);
}

/* ========================================
   Particle Canvas
   ======================================== */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 6vw, 4rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }

p { color: var(--text-secondary); }

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

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   Navigation
   ======================================== */
.glass-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: background var(--transition-medium), transform var(--transition-medium);
}

[data-theme="light"] .glass-nav {
    background: rgba(244, 244, 249, 0.85);
}

.glass-nav.scrolled {
    background: rgba(10, 10, 15, 0.95);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

[data-theme="light"] .glass-nav.scrolled {
    background: rgba(244, 244, 249, 0.95);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 15px 20px;
    height: var(--nav-height);
}

.logo {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
}

.logo-text {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    z-index: 1;
}

.logo-glow {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    opacity: 0.5;
    filter: blur(10px);
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    position: relative;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 0;
    transition: var(--transition-medium);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
    transition: var(--transition-medium);
}

.nav-links a:hover {
    color: var(--text-primary);
}

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

.nav-links a.active {
    color: var(--accent-cyan);
}

.nav-links a.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Theme Toggle */
.theme-toggle {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition-medium);
    overflow: hidden;
}

.theme-toggle::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    opacity: 0;
    z-index: -1;
    transition: opacity var(--transition-medium);
}

.theme-toggle:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    box-shadow: 0 0 20px var(--glow-cyan);
}

.theme-toggle:active {
    transform: scale(0.92);
}

.theme-toggle svg {
    position: absolute;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
}

.theme-toggle .sun-icon {
    transform: rotate(-90deg) scale(0.5);
    opacity: 0;
}

.theme-toggle .moon-icon {
    transform: rotate(0deg) scale(1);
    opacity: 1;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    transform: rotate(0deg) scale(1);
    opacity: 1;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    transform: rotate(90deg) scale(0.5);
    opacity: 0;
}

[data-theme="light"] .theme-toggle .sun-icon {
    transform: rotate(-90deg) scale(0.5);
    opacity: 0;
}

[data-theme="light"] .theme-toggle .moon-icon {
    transform: rotate(0deg) scale(1);
    opacity: 1;
}

/* Spinning animation class triggered by JS */
.theme-toggle.spin svg {
    animation: theme-spin 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes theme-spin {
    0% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(0.3); }
    100% { transform: rotate(360deg) scale(1); }
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-medium);
}

/* Mobile Slide-in Nav */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: min(300px, 80vw);
        height: 100vh;
        flex-direction: column;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(30px);
        -webkit-backdrop-filter: blur(30px);
        padding: 100px 30px 30px;
        gap: 0;
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        border-left: 1px solid var(--glass-border);
        z-index: 1001;
        overflow-y: auto;
    }

    [data-theme="light"] .nav-links {
        background: rgba(244, 244, 249, 0.98);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        opacity: 0;
        transform: translateX(20px);
        transition: opacity 0.3s ease, transform 0.3s ease;
    }

    .nav-links.active li {
        opacity: 1;
        transform: translateX(0);
    }

    .nav-links.active li:nth-child(1) { transition-delay: 0.1s; }
    .nav-links.active li:nth-child(2) { transition-delay: 0.15s; }
    .nav-links.active li:nth-child(3) { transition-delay: 0.2s; }
    .nav-links.active li:nth-child(4) { transition-delay: 0.25s; }
    .nav-links.active li:nth-child(5) { transition-delay: 0.3s; }
    .nav-links.active li:nth-child(6) { transition-delay: 0.35s; }

    .nav-links a {
        display: block;
        padding: 18px 0;
        font-size: 1.1rem;
        border-bottom: 1px solid var(--glass-border);
    }

    .mobile-toggle {
        display: flex;
    }

    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    /* Overlay when menu is open */
    .nav-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1000;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-medium);
    }

    .nav-overlay.active {
        opacity: 1;
        visibility: visible;
    }
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 120px 20px 80px;
    position: relative;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: var(--container-width);
    margin: 0 auto;
    width: 100%;
}

.hero-text {
    animation: fade-in-up 0.8s ease forwards;
}

.greeting {
    font-size: 1.1rem;
    color: var(--accent-cyan);
    font-weight: 500;
    margin-bottom: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.name {
    font-size: clamp(2.5rem, 5vw, 4rem);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-cyan) 50%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

/* Typing Animation */
.title-wrapper {
    font-size: 1.3rem;
    margin-bottom: 20px;
    min-height: 2rem;
}

.title-prefix {
    color: var(--text-secondary);
}

.typed-text {
    color: var(--accent-purple);
    font-weight: 600;
}

.cursor {
    display: inline-block;
    width: 3px;
    height: 1.3rem;
    background: var(--accent-cyan);
    margin-left: 2px;
    animation: blink 1s step-end infinite;
    vertical-align: text-bottom;
}

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

.bio {
    font-size: 1.05rem;
    line-height: 1.8;
    max-width: 500px;
    margin-bottom: 30px;
}

.bio strong {
    color: var(--accent-cyan);
    font-weight: 600;
}

.cta-group {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-medium);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    color: var(--bg-primary);
    box-shadow: 0 4px 20px var(--glow-cyan);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--glow-cyan);
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-3px);
}

.btn-secondary:active {
    transform: translateY(-1px);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    animation: fade-in 1s ease 0.3s forwards;
    opacity: 0;
}

.profile-frame {
    position: relative;
    width: clamp(200px, 35vw, 320px);
    height: clamp(240px, 45vw, 380px);
    border-radius: 24px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple), var(--accent-pink));
    padding: 3px;
}

.profile-glow {
    position: absolute;
    inset: -50%;
    background: conic-gradient(from 0deg, var(--accent-cyan), var(--accent-purple), var(--accent-pink), var(--accent-cyan));
    animation: rotate-glow 4s linear infinite;
    opacity: 0.7;
}

@keyframes rotate-glow {
    to { transform: rotate(360deg); }
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 21px;
    position: relative;
    z-index: 1;
}

.floating-badges {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
}

.badge {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    animation: float-badge 6s ease-in-out infinite;
    white-space: nowrap;
}

.badge-icon {
    font-size: 1.1rem;
}

.badge-1 {
    top: 10%;
    right: -20px;
    animation-delay: 0s;
}

.badge-2 {
    bottom: 30%;
    left: -30px;
    animation-delay: -2s;
}

.badge-3 {
    bottom: 5%;
    right: 10%;
    animation-delay: -4s;
}

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

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    font-size: 0.85rem;
    animation: fade-in 1s ease 1s forwards;
    opacity: 0;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 13px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-wheel 2s ease-in-out infinite;
}

@keyframes scroll-wheel {
    0%, 100% { opacity: 1; top: 8px; }
    50% { opacity: 0.3; top: 20px; }
}

/* ========================================
   Section Header
   ======================================== */
.section {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent-cyan);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 15px;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
}

.highlight {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   Glass Card Base
   ======================================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 30px;
    transition: background var(--transition-medium), border-color var(--transition-medium), transform var(--transition-medium), box-shadow var(--transition-medium);
}

.glass-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-5px);
    box-shadow: var(--shadow-card);
}

/* ========================================
   About Section
   ======================================== */
.about {
    padding: var(--section-padding);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.about-card {
    text-align: center;
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    display: inline-block;
}

.about-card h3 {
    margin-bottom: 12px;
    color: var(--text-primary);
}

.about-card p {
    font-size: 0.95rem;
    line-height: 1.7;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    text-align: center;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.stat-number {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-number.infinite {
    -webkit-text-fill-color: unset;
    background: none;
    -webkit-background-clip: unset;
    color: var(--accent-cyan);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ========================================
   Timeline Section
   ======================================== */
.timeline {
    padding: var(--section-padding);
    background: linear-gradient(180deg, transparent 0%, rgba(168, 85, 247, 0.02) 50%, transparent 100%);
}

.timeline-container {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
    padding: 20px 0;
}

.timeline-container::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--accent-cyan), var(--accent-purple), transparent);
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: 40px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: 12px;
    top: 30px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    border: 3px solid var(--bg-primary);
    z-index: 1;
    box-shadow: 0 0 15px var(--glow-cyan);
}

.timeline-content {
    padding: 24px;
}

.timeline-year {
    display: inline-block;
    padding: 4px 12px;
    background: linear-gradient(135deg, rgba(0, 245, 255, 0.15), rgba(168, 85, 247, 0.15));
    border: 1px solid rgba(0, 245, 255, 0.2);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-cyan);
    margin-bottom: 12px;
}

.timeline-content h3 {
    margin-bottom: 8px;
    color: var(--text-primary);
}

.timeline-content p {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 12px;
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.timeline-tags span {
    padding: 4px 10px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* ========================================
   Projects Section
   ======================================== */
.projects {
    padding: var(--section-padding);
    background: linear-gradient(180deg, transparent 0%, rgba(0, 245, 255, 0.02) 50%, transparent 100%);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.project-card {
    padding: 0;
    overflow: hidden;
    transform-style: preserve-3d;
    will-change: transform;
}

.project-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateZ(20px);
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: relative;
    z-index: 1;
}

.placeholder-img {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
}

.placeholder-img span {
    font-size: 3rem;
}

.placeholder-img p {
    font-size: 0.9rem;
}

.project-content {
    padding: 25px;
    transform: translateZ(30px);
}

.project-type {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(0, 245, 255, 0.1);
    border: 1px solid rgba(0, 245, 255, 0.2);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--accent-cyan);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.project-content h3 {
    margin-bottom: 10px;
    color: var(--text-primary);
}

.project-content p {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 15px;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.tech-stack span {
    padding: 5px 12px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-cyan);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition-medium);
}

.project-link:hover {
    gap: 12px;
}

.project-link.disabled {
    color: var(--text-muted);
    cursor: not-allowed;
    pointer-events: none;
}

.project-link[target="_blank"]::after {
    content: ' ↗';
    font-size: 0.8rem;
}

.project-image.project-ai {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

.project-image.project-subtrace {
    background: linear-gradient(135deg, #0d0d0d 0%, #1a1a2e 50%, #2d1b4e 100%);
}

.project-image.project-esp32 {
    background: linear-gradient(135deg, #0a1628 0%, #1a3a3a 50%, #0d2818 100%);
}

.project-image.project-phonescanner {
    background: linear-gradient(135deg, #1a0a2e 0%, #2d1b4e 50%, #0f3460 100%);
}

.project-image.project-ipinfo {
    background: linear-gradient(135deg, #0d1117 0%, #1a2332 50%, #162240 100%);
}

.coming-soon {
    opacity: 0.7;
}

.coming-soon:hover {
    transform: none !important;
}

/* ========================================
   Skills Section
   ======================================== */
.skills {
    padding: var(--section-padding);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.skill-category {
    padding: 25px;
}

.category-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.1rem;
    margin-bottom: 25px;
    color: var(--text-primary);
}

.category-icon {
    font-size: 1.5rem;
}

/* Skill Progress Bars */
.skill-bars {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.skill-bar {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.skill-bar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.skill-bar-header span:first-child {
    color: var(--text-secondary);
    font-weight: 500;
}

.skill-percent {
    color: var(--accent-cyan);
    font-weight: 600;
    font-size: 0.8rem;
}

.skill-bar-track {
    width: 100%;
    height: 6px;
    background: var(--glass-bg);
    border-radius: 3px;
    overflow: hidden;
}

.skill-bar-fill {
    height: 100%;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
    width: 0;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
    padding: var(--section-padding);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 30px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.info-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.info-text {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.info-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.info-text a, .info-text span:not(.info-label) {
    color: var(--text-primary);
    font-weight: 500;
}

.info-text a:hover {
    color: var(--accent-cyan);
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 10px;
}

.social-link {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-secondary);
    transition: var(--transition-medium);
}

.social-link:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    transform: translateY(-3px);
    box-shadow: 0 5px 20px var(--glow-cyan);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    padding: 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-medium);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px var(--glow-cyan);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ========================================
   Back to Top
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-medium);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--glass-bg-hover);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    transform: translateY(-3px);
    box-shadow: 0 5px 20px var(--glow-cyan);
}

.back-to-top-progress {
    position: absolute;
    inset: -2px;
    border-radius: 50%;
    pointer-events: none;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    padding: 40px 20px;
    border-top: 1px solid var(--glass-border);
    background: rgba(10, 10, 15, 0.8);
}

[data-theme="light"] .footer {
    background: rgba(244, 244, 249, 0.8);
}

.footer-content {
    text-align: center;
}

.copyright {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.footer-tagline {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ========================================
   Animations
   ======================================== */
@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-text {
        order: 2;
    }

    .hero-visual {
        order: 1;
    }

    .bio {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

    .cta-group {
        justify-content: center;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .floating-badges {
        display: none;
    }

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 100px 20px 60px;
    }

    .profile-frame {
        width: clamp(180px, 60vw, 240px);
        height: clamp(220px, 70vw, 290px);
    }

    .scroll-indicator {
        display: none;
    }

    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }

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

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

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

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }

    .timeline-container::before {
        left: 16px;
    }

    .timeline-item {
        padding-left: 50px;
    }

    .timeline-marker {
        left: 8px;
        width: 16px;
        height: 16px;
    }
}

@media (max-width: 640px) {
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 480px) {
    .name {
        font-size: clamp(1.8rem, 8vw, 2rem);
    }

    .title-wrapper {
        font-size: 1rem;
    }

    .bio {
        font-size: 0.95rem;
    }

    .cta-group {
        flex-direction: column;
    }

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

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

    .about-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }

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

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

    .contact-content {
        grid-template-columns: 1fr;
    }

    .social-links {
        justify-content: center;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .glass-card {
        padding: 20px;
    }

    .back-to-top {
        bottom: 15px;
        right: 15px;
        width: 40px;
        height: 40px;
    }
}