/* ===================================
   DESIGN SYSTEM & CSS VARIABLES
   =================================== */
:root {
    /* Colors - Dark Theme */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a2e;
    --bg-card: rgba(26, 26, 46, 0.6);
    --bg-card-hover: rgba(30, 30, 55, 0.8);

    /* Accent Colors */
    --accent-primary: #6c63ff;
    --accent-secondary: #00d4aa;
    --accent-tertiary: #ff6b6b;
    --accent-glow: rgba(108, 99, 255, 0.15);
    --accent-glow-strong: rgba(108, 99, 255, 0.3);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6c63ff 0%, #00d4aa 100%);
    --gradient-hero: linear-gradient(135deg, #6c63ff 0%, #a855f7 50%, #00d4aa 100%);
    --gradient-card: linear-gradient(135deg, rgba(108, 99, 255, 0.1) 0%, rgba(0, 212, 170, 0.05) 100%);
    --gradient-text: linear-gradient(135deg, #6c63ff, #a855f7, #00d4aa);

    /* Text Colors */
    --text-primary: #e8e8ed;
    --text-secondary: #a0a0b8;
    --text-muted: #6b6b80;
    --text-accent: #6c63ff;

    /* Border */
    --border-color: rgba(108, 99, 255, 0.15);
    --border-hover: rgba(108, 99, 255, 0.4);

    /* Spacing */
    --section-padding: 120px 0;
    --container-width: 1200px;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Effects */
    --blur-sm: 8px;
    --blur-md: 16px;
    --blur-lg: 32px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(108, 99, 255, 0.2);

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===================================
   CURSOR GLOW
   =================================== */
.cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(108, 99, 255, 0.06) 0%, transparent 70%);
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    opacity: 0;
}

body:hover .cursor-glow {
    opacity: 1;
}

/* ===================================
   LOADING SCREEN
   =================================== */
.loading-screen {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s, visibility 0.5s;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

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

.loading-code {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.loading-bracket {
    color: var(--accent-primary);
}

.loading-dots {
    animation: loadingDots 1.5s infinite;
}

@keyframes loadingDots {
    0%, 20% { content: '.'; opacity: 0.3; }
    40% { opacity: 0.6; }
    60% { opacity: 0.9; }
    80%, 100% { opacity: 0.3; }
}

.loading-bar {
    width: 200px;
    height: 3px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
    margin: 0 auto;
}

.loading-bar-fill {
    width: 0;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    animation: loadingFill 1.5s ease-in-out forwards;
}

@keyframes loadingFill {
    to { width: 100%; }
}

/* ===================================
   NAVIGATION
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(var(--blur-md));
    border-bottom: 1px solid var(--border-color);
    padding: 10px 0;
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 2px;
}

.logo-bracket {
    color: var(--accent-primary);
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 4px 0;
}

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

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: var(--accent-glow);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-primary);
    transition: var(--transition-normal);
}

.nav-cta:hover {
    background: var(--accent-glow-strong);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 4px;
    transition: var(--transition-normal);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(var(--blur-lg));
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.mobile-link {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: var(--transition-normal);
}

.mobile-link:hover {
    color: var(--accent-primary);
}

.mobile-link.cta {
    font-size: 1rem;
    margin-top: 16px;
    padding: 12px 32px;
    background: var(--accent-glow);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--accent-primary);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 100px 0 60px;
}

.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(108, 99, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(108, 99, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

.hero-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid rgba(0, 212, 170, 0.3);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent-secondary);
    margin-bottom: 24px;
    animation: fadeInUp 0.8s 0.3s both;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-secondary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

.hero-title {
    margin-bottom: 24px;
}

.hero-greeting {
    display: block;
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 8px;
    animation: fadeInUp 0.8s 0.4s both;
}

.hero-name {
    display: block;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 16px;
    animation: fadeInUp 0.8s 0.5s both;
}

.name-char {
    display: inline-block;
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: charReveal 0.6s calc(0.6s + var(--i) * 0.08s) both;
}

@keyframes charReveal {
    from {
        opacity: 0;
        transform: translateY(30px) rotateX(40deg);
    }
    to {
        opacity: 1;
        transform: translateY(0) rotateX(0);
    }
}

.hero-role {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--accent-secondary);
    animation: fadeInUp 0.8s 0.7s both;
}

.role-prefix {
    color: var(--accent-primary);
    font-weight: 700;
}

.cursor-blink {
    animation: blink 1s step-end infinite;
    color: var(--accent-primary);
}

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

.hero-description {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 540px;
    animation: fadeInUp 0.8s 0.8s both;
}

.highlight {
    color: var(--accent-primary);
    font-weight: 600;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 36px;
    animation: fadeInUp 0.8s 0.9s both;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-suffix {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 36px;
    animation: fadeInUp 0.8s 1s both;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px rgba(108, 99, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(108, 99, 255, 0.4);
}

.btn-primary:hover i {
    transform: translateX(4px);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    background: var(--accent-glow);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

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

.form-status {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 0.9rem;
    text-align: center;
    display: none;
}

.form-status.success {
    display: block;
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid rgba(0, 212, 170, 0.3);
    color: var(--accent-secondary);
}

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

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn i {
    transition: var(--transition-normal);
}

.hero-socials {
    display: flex;
    gap: 16px;
    animation: fadeInUp 0.8s 1.1s both;
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: var(--transition-normal);
}

.social-link:hover {
    color: var(--accent-primary);
    border-color: var(--accent-primary);
    background: var(--accent-glow);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

/* Code Window */
.hero-visual {
    animation: fadeInRight 1s 0.6s both;
}

.code-window {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.code-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.code-title {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.code-body {
    padding: 24px;
}

.code-body pre {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-keyword { color: #c678dd; }
.code-var { color: #e06c75; }
.code-prop { color: #e5c07b; }
.code-string { color: #98c379; }
.code-method { color: #61afef; }
.code-bool { color: #d19a66; }

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    animation: fadeInUp 0.8s 1.5s both;
}

.scroll-mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--border-color);
    border-radius: 100px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-wheel {
    width: 4px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 4px;
    animation: scrollWheel 2s infinite;
}

@keyframes scrollWheel {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(12px); opacity: 0; }
}

/* ===================================
   SECTION COMMON STYLES
   =================================== */
.section {
    padding: var(--section-padding);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-primary);
    opacity: 0.7;
    display: block;
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 12px;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

.section-footer-tag {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-primary);
    opacity: 0.3;
    text-align: center;
    margin-top: 64px;
}

/* ===================================
   ABOUT SECTION
   =================================== */
.about-grid {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 60px;
    align-items: start;
}

.about-image-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 32px;
    text-align: center;
    backdrop-filter: blur(var(--blur-sm));
    position: sticky;
    top: 100px;
}

.about-avatar {
    margin-bottom: 24px;
}

.avatar-photo {
    width: 180px;
    height: 180px;
    margin: 0 auto;
    border-radius: 24px;
    object-fit: cover;
    object-position: center top;
    box-shadow: var(--shadow-glow), 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 3px solid var(--accent-primary);
    transition: var(--transition-normal);
}

.avatar-photo:hover {
    transform: scale(1.05);
    box-shadow: 0 0 40px rgba(108, 99, 255, 0.4), 0 8px 32px rgba(0, 0, 0, 0.4);
}

.about-quick-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.quick-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: var(--bg-tertiary);
    border-radius: 10px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.quick-item i {
    color: var(--accent-primary);
    width: 16px;
    text-align: center;
}

.about-headline {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.4;
}

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

.about-text {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 0.95rem;
}

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

.about-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 32px;
}

.highlight-card {
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    text-align: center;
    transition: var(--transition-normal);
}

.highlight-card:hover {
    border-color: var(--accent-primary);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.highlight-card i {
    font-size: 1.5rem;
    color: var(--accent-primary);
    margin-bottom: 12px;
}

.highlight-card h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.highlight-card p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===================================
   EXPERIENCE / TIMELINE
   =================================== */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent-primary), transparent);
}

.timeline-item {
    padding-left: 48px;
    margin-bottom: 48px;
    position: relative;
    opacity: 0;
    transform: translateX(-20px);
    animation: slideInTimeline 0.6s forwards;
}

.timeline-item:nth-child(1) { animation-delay: 0.2s; }
.timeline-item:nth-child(2) { animation-delay: 0.4s; }
.timeline-item:nth-child(3) { animation-delay: 0.6s; }

@keyframes slideInTimeline {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.timeline-marker {
    position: absolute;
    left: -7px;
    top: 8px;
}

.marker-dot {
    width: 16px;
    height: 16px;
    background: var(--accent-primary);
    border-radius: 50%;
    border: 3px solid var(--bg-primary);
    box-shadow: 0 0 0 3px var(--accent-glow-strong);
}

.timeline-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 28px;
    backdrop-filter: blur(var(--blur-sm));
    transition: var(--transition-normal);
}

.timeline-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
    gap: 16px;
}

.timeline-title {
    font-size: 1.2rem;
    font-weight: 700;
}

.timeline-company {
    font-size: 0.9rem;
    color: var(--accent-primary);
    font-weight: 500;
}

.timeline-period {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    white-space: nowrap;
    padding: 4px 12px;
    background: var(--bg-tertiary);
    border-radius: 6px;
}

.timeline-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.timeline-achievements {
    margin-bottom: 16px;
    padding-left: 16px;
}

.timeline-achievements li {
    position: relative;
    padding-left: 16px;
    margin-bottom: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.timeline-achievements li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent-secondary);
    font-weight: 700;
}

.timeline-achievements li strong {
    color: var(--text-primary);
}

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

.tech-pill {
    padding: 4px 12px;
    background: var(--accent-glow);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--accent-primary);
}

/* ===================================
   PROJECTS SECTION
   =================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    backdrop-filter: blur(var(--blur-sm));
    transition: var(--transition-normal);
}

.project-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.project-card.featured {
    grid-column: span 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.project-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.project-card.featured .project-image {
    aspect-ratio: auto;
}

.project-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
    min-height: 200px;
}

.project-image-placeholder i {
    font-size: 3rem;
    opacity: 0.9;
}

.project-image-placeholder.travel {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.project-image-placeholder.ai {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.project-image-placeholder.relax {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.project-image-placeholder.ocr {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 15, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

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

.project-links {
    display: flex;
    gap: 12px;
}

.project-link-btn {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-primary);
    color: white;
    border-radius: 12px;
    font-size: 1.1rem;
    transform: translateY(10px);
    transition: var(--transition-normal);
}

.project-card:hover .project-link-btn {
    transform: translateY(0);
}

.project-link-btn:hover {
    background: white;
    color: var(--accent-primary);
}

.project-info {
    padding: 24px;
}

.project-type {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-secondary);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.project-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.project-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.project-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 16px;
}

.project-features span {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.project-features i {
    color: var(--accent-secondary);
    font-size: 0.7rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.project-tech span {
    padding: 4px 12px;
    background: var(--bg-tertiary);
    border-radius: 6px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
}

/* ===================================
   SKILLS SECTION
   =================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.skill-category {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 28px;
    backdrop-filter: blur(var(--blur-sm));
    transition: var(--transition-normal);
}

.skill-category:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.skill-category-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 24px;
}

.skill-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    font-size: 1.3rem;
    color: white;
}

.skill-icon.ai-skill { background: linear-gradient(135deg, #f43f5e, #fb923c); }
.skill-icon.frontend { background: linear-gradient(135deg, #6c63ff, #a855f7); }
.skill-icon.backend { background: linear-gradient(135deg, #00d4aa, #0ea5e9); }
.skill-icon.mobile { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.skill-icon.database { background: linear-gradient(135deg, #22c55e, #3b82f6); }

.skill-category-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
}

.skill-items {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.skill-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 14px 8px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    transition: var(--transition-normal);
}

.skill-item:hover {
    background: var(--accent-glow);
    transform: translateY(-4px);
}

.skill-item img {
    width: 36px;
    height: 36px;
    object-fit: contain;
}

.skill-item span {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-align: center;
}

/* ===================================
   EDUCATION SECTION
   =================================== */
.education-card {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px;
    backdrop-filter: blur(var(--blur-sm));
    max-width: 900px;
    margin: 0 auto;
}

.education-logo {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 20px;
    font-size: 2rem;
    color: white;
    box-shadow: var(--shadow-glow);
}

.education-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
    gap: 16px;
}

.education-header h3 {
    font-size: 1.3rem;
    font-weight: 700;
}

.education-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.education-period {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    white-space: nowrap;
    padding: 4px 12px;
    background: var(--bg-tertiary);
    border-radius: 6px;
}

.education-degree {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 0.95rem;
    font-weight: 500;
}

.education-degree i {
    color: var(--accent-secondary);
}

.education-program {
    padding: 4px 12px;
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid rgba(0, 212, 170, 0.3);
    border-radius: 100px;
    font-size: 0.75rem;
    color: var(--accent-secondary);
}

.education-details {
    display: flex;
    gap: 24px;
    margin-bottom: 24px;
}

.edu-detail {
    padding: 12px 20px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.edu-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
}

.edu-value {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.education-highlights h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.edu-highlights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.edu-highlight {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 14px;
    background: var(--bg-tertiary);
    border-radius: 10px;
}

.edu-grade {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--accent-secondary);
    min-width: 30px;
}

.edu-course {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ===================================
   CONTACT SECTION
   =================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.contact-info > p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 0.95rem;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    transition: var(--transition-normal);
}

.contact-item:hover {
    border-color: var(--accent-primary);
    background: var(--accent-glow);
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-glow);
    border-radius: 12px;
    color: var(--accent-primary);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-value {
    font-size: 0.95rem;
    font-weight: 500;
}

.contact-socials {
    display: flex;
    gap: 12px;
}

.contact-social {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    color: var(--text-secondary);
    font-size: 1.2rem;
    transition: var(--transition-normal);
}

.contact-social:hover {
    color: var(--accent-primary);
    border-color: var(--accent-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

/* Contact Form */
.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 32px;
    backdrop-filter: blur(var(--blur-sm));
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    transition: var(--transition-normal);
    outline: none;
}

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

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

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

/* ===================================
   FOOTER
   =================================== */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

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

.footer-brand {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.footer-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.footer-copyright {
    font-size: 0.8rem;
    color: var(--text-muted);
}

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s, transform 0.6s;
}

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

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px 0;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero-description {
        text-align: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-socials {
        justify-content: center;
    }

    .hero-visual {
        max-width: 500px;
        margin: 0 auto;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image-card {
        position: static;
        max-width: 380px;
        margin: 0 auto;
    }

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

    .project-card.featured {
        grid-column: span 1;
        grid-template-columns: 1fr;
    }

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

    .education-card {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .education-logo {
        margin: 0 auto;
    }

    .education-header {
        flex-direction: column;
        align-items: center;
    }

    .education-degree {
        justify-content: center;
    }

    .education-details {
        justify-content: center;
        flex-wrap: wrap;
    }

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

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

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

    .nav-cta {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-name {
        font-size: 2.2rem;
    }

    .hero-stats {
        gap: 16px;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

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

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

    .timeline::before {
        display: none;
    }

    .timeline-item {
        padding-left: 0;
    }

    .timeline-marker {
        display: none;
    }

    .timeline-header {
        flex-direction: column;
    }

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

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

    .contact-form {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 80px 0 40px;
    }

    .hero-name {
        font-size: 1.8rem;
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .code-body pre {
        font-size: 0.72rem;
    }

    .education-card {
        padding: 24px;
    }

    .education-details {
        flex-direction: column;
        align-items: center;
    }
}

/* ===================================
   PRINT STYLES
   =================================== */
@media print {
    .navbar, .loading-screen, .cursor-glow, .scroll-indicator, .hero-particles, .hero-bg-grid {
        display: none !important;
    }

    body {
        background: white;
        color: #333;
    }

    .section {
        padding: 40px 0;
    }
}