/* ============================================
   YASH GUPTA - TECHY PORTFOLIO WEBSITE
   Premium Dark Futuristic Design System
   ============================================ */

/* === CSS CUSTOM PROPERTIES === */
:root {
    /* Colors - Dark Techy Palette */
    --bg-primary: #050510;
    --bg-secondary: #0a0a1a;
    --bg-tertiary: #0f0f2e;
    --bg-card: rgba(15, 15, 46, 0.6);
    --bg-glass: rgba(10, 10, 30, 0.7);

    --accent-cyan: #00f5ff;
    --accent-purple: #7b2fff;
    --accent-blue: #0066ff;
    --accent-pink: #ff006e;
    --accent-green: #00ff88;

    --gradient-primary: linear-gradient(135deg, #00f5ff, #7b2fff);
    --gradient-secondary: linear-gradient(135deg, #7b2fff, #ff006e);
    --gradient-glow: linear-gradient(135deg, rgba(0, 245, 255, 0.3), rgba(123, 47, 255, 0.3));

    --text-primary: #e8e8ff;
    --text-secondary: #a0a0cc;
    --text-muted: #6a6a8e;

    --border-glow: rgba(0, 245, 255, 0.2);
    --border-subtle: rgba(255, 255, 255, 0.05);

    /* Typography */
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Rajdhani', sans-serif;
    --font-mono: 'Share Tech Mono', monospace;

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

    /* Effects */
    --glow-cyan: 0 0 20px rgba(0, 245, 255, 0.3), 0 0 40px rgba(0, 245, 255, 0.1);
    --glow-purple: 0 0 20px rgba(123, 47, 255, 0.3), 0 0 40px rgba(123, 47, 255, 0.1);
    --glow-text: 0 0 10px rgba(0, 245, 255, 0.5), 0 0 20px rgba(0, 245, 255, 0.2);

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-cyan) var(--bg-primary);
}

html::-webkit-scrollbar {
    width: 6px;
}

html::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

html::-webkit-scrollbar-thumb {
    background: var(--accent-cyan);
    border-radius: 3px;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
    font-size: 16px;
    cursor: none;
}

@media (pointer: coarse) {
    body { cursor: auto; }
    .cursor-dot, .cursor-ring { display: none !important; }
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
}

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

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

/* === SCAN LINES OVERLAY === */
.scan-lines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 245, 255, 0.008) 2px,
        rgba(0, 245, 255, 0.008) 4px
    );
}

/* === CUSTOM CURSOR === */
.cursor-dot {
    position: fixed;
    width: 6px;
    height: 6px;
    background: var(--accent-cyan);
    border-radius: 50%;
    pointer-events: none;
    z-index: 10001;
    transition: transform 0.1s;
    box-shadow: 0 0 10px var(--accent-cyan);
}

.cursor-ring {
    position: fixed;
    width: 36px;
    height: 36px;
    border: 1.5px solid rgba(0, 245, 255, 0.4);
    border-radius: 50%;
    pointer-events: none;
    z-index: 10000;
    transition: all 0.15s ease-out;
}

.cursor-ring.hover {
    width: 56px;
    height: 56px;
    border-color: var(--accent-cyan);
    background: rgba(0, 245, 255, 0.05);
}

/* === PRELOADER === */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10002;
    transition: opacity 0.6s, visibility 0.6s;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.preloader-inner {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.preloader-ring {
    position: absolute;
    border-radius: 50%;
    border: 2px solid transparent;
    animation: preloader-spin 1.5s linear infinite;
}

.preloader-ring:nth-child(1) {
    width: 80px;
    height: 80px;
    border-top-color: var(--accent-cyan);
    animation-duration: 1.2s;
}

.preloader-ring:nth-child(2) {
    width: 60px;
    height: 60px;
    border-right-color: var(--accent-purple);
    animation-duration: 1.5s;
    animation-direction: reverse;
}

.preloader-ring:nth-child(3) {
    width: 40px;
    height: 40px;
    border-bottom-color: var(--accent-pink);
    animation-duration: 1s;
}

.preloader-text {
    margin-top: 60px;
    font-family: var(--font-mono);
    color: var(--accent-cyan);
    font-size: 14px;
    letter-spacing: 4px;
}

.preloader-text .dots {
    animation: dots-blink 1s steps(3) infinite;
}

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

@keyframes dots-blink {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

/* === NAVIGATION === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 0;
    transition: all var(--transition-medium);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(5, 5, 16, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glow);
    padding: 10px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.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-display);
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 2px;
    transition: all var(--transition-fast);
}

.nav-logo:hover {
    text-shadow: var(--glow-text);
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-link {
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 6px;
    transition: all var(--transition-fast);
    position: relative;
    letter-spacing: 0.5px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 20px;
    height: 2px;
    background: var(--accent-cyan);
    transition: transform var(--transition-fast);
    border-radius: 1px;
    box-shadow: 0 0 8px var(--accent-cyan);
}

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

.nav-link:hover::after,
.nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-link-cta {
    background: var(--gradient-primary);
    color: var(--bg-primary) !important;
    font-weight: 600;
    border-radius: 8px;
    padding: 8px 20px;
}

.nav-link-cta::after {
    display: none;
}

.nav-link-cta:hover {
    box-shadow: var(--glow-cyan);
    transform: translateY(-2px);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 28px;
    height: 2px;
    background: var(--accent-cyan);
    transition: all var(--transition-fast);
    border-radius: 1px;
}

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

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

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

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

#heroCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    background-image:
        linear-gradient(rgba(0, 245, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 245, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    padding: 0 24px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(0, 245, 255, 0.08);
    border: 1px solid rgba(0, 245, 255, 0.2);
    border-radius: 50px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--accent-cyan);
    margin-bottom: 32px;
    animation: fadeInDown 0.8s ease-out 0.5s both;
}

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

@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0, 255, 136, 0.4); }
    50% { opacity: 0.8; box-shadow: 0 0 0 6px rgba(0, 255, 136, 0); }
}

.hero-name {
    font-family: var(--font-display);
    font-size: clamp(48px, 10vw, 110px);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: 4px;
    margin-bottom: 16px;
    animation: fadeInUp 0.8s ease-out 0.7s both;
}

.hero-name-line {
    display: block;
}

.hero-name-line.accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 30px rgba(0, 245, 255, 0.3));
}

/* Glitch Effect */
.glitch {
    position: relative;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    font-family: var(--font-display);
    font-size: clamp(48px, 10vw, 110px);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: 4px;
}

.glitch::before {
    color: var(--accent-cyan);
    z-index: -1;
    animation: glitch-1 4s infinite linear alternate-reverse;
}

.glitch::after {
    color: var(--accent-purple);
    z-index: -2;
    animation: glitch-2 4s infinite linear alternate-reverse;
}

@keyframes glitch-1 {
    0%, 93%, 100% { clip-path: inset(0 0 0 0); transform: translate(0); }
    94% { clip-path: inset(20% 0 60% 0); transform: translate(-3px, 2px); }
    95% { clip-path: inset(50% 0 30% 0); transform: translate(3px, -1px); }
    96% { clip-path: inset(10% 0 80% 0); transform: translate(-2px, 3px); }
    97% { clip-path: inset(70% 0 10% 0); transform: translate(2px, -2px); }
}

@keyframes glitch-2 {
    0%, 93%, 100% { clip-path: inset(0 0 0 0); transform: translate(0); }
    94% { clip-path: inset(40% 0 20% 0); transform: translate(3px, -2px); }
    95% { clip-path: inset(10% 0 70% 0); transform: translate(-3px, 1px); }
    96% { clip-path: inset(60% 0 20% 0); transform: translate(2px, -3px); }
    97% { clip-path: inset(30% 0 50% 0); transform: translate(-2px, 2px); }
}

.hero-title-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-size: clamp(16px, 2.5vw, 22px);
    color: var(--text-secondary);
    margin-bottom: 16px;
    min-height: 34px;
    animation: fadeInUp 0.8s ease-out 0.9s both;
}

.hero-title-prefix {
    color: var(--accent-cyan);
}

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

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

.hero-tagline {
    font-size: clamp(14px, 1.5vw, 18px);
    color: var(--text-muted);
    margin-bottom: 40px;
    font-weight: 400;
    letter-spacing: 0.5px;
    animation: fadeInUp 0.8s ease-out 1.1s both;
}

.hero-cta-group {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
    animation: fadeInUp 0.8s ease-out 1.3s both;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 600;
    border-radius: 10px;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    border: none;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--bg-primary);
}

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

.btn-primary .btn-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transition: all 0.5s;
}

.btn-primary:hover .btn-glow {
    width: 300px;
    height: 300px;
    margin-top: -150px;
    margin-left: -150px;
}

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

.btn-outline:hover {
    background: rgba(0, 245, 255, 0.1);
    box-shadow: var(--glow-cyan);
    transform: translateY(-3px);
}

.btn-icon {
    transition: transform var(--transition-fast);
}

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

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    animation: fadeInUp 0.8s ease-out 1.5s both;
}

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

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 700;
    color: var(--accent-cyan);
    text-shadow: var(--glow-text);
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: linear-gradient(transparent, var(--accent-cyan), transparent);
}

/* Hero Scroll Indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    animation: fadeInUp 0.8s ease-out 1.8s both;
}

.hero-scroll-indicator span {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.scroll-arrow {
    animation: bounce-arrow 2s ease-in-out infinite;
    color: var(--accent-cyan);
    font-size: 14px;
}

@keyframes bounce-arrow {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(8px); opacity: 0.5; }
}

/* Hero Corner Decorations */
.hero-corner {
    position: absolute;
    width: 60px;
    height: 60px;
    z-index: 3;
    border-color: rgba(0, 245, 255, 0.15);
    border-style: solid;
    border-width: 0;
}

.hero-corner.top-left {
    top: 30px;
    left: 30px;
    border-top-width: 2px;
    border-left-width: 2px;
}

.hero-corner.top-right {
    top: 30px;
    right: 30px;
    border-top-width: 2px;
    border-right-width: 2px;
}

.hero-corner.bottom-left {
    bottom: 30px;
    left: 30px;
    border-bottom-width: 2px;
    border-left-width: 2px;
}

.hero-corner.bottom-right {
    bottom: 30px;
    right: 30px;
    border-bottom-width: 2px;
    border-right-width: 2px;
}

/* === SECTIONS COMMON === */
.section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-number {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--accent-cyan);
    letter-spacing: 3px;
    display: block;
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.section-line {
    width: 80px;
    height: 3px;
    background: var(--gradient-primary);
    margin: 0 auto;
    border-radius: 2px;
    box-shadow: 0 0 15px rgba(0, 245, 255, 0.3);
}

/* Glass Card */
.glass-card {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-glow);
    border-radius: 16px;
    transition: all var(--transition-medium);
}

.glass-card:hover {
    border-color: rgba(0, 245, 255, 0.4);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), inset 0 0 60px rgba(0, 245, 255, 0.02);
}

/* === ABOUT SECTION === */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 60px;
    align-items: center;
}

.about-visual {
    display: flex;
    justify-content: center;
}

.about-image-wrapper {
    position: relative;
}

.about-avatar {
    position: relative;
    width: 250px;
    height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.avatar-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid transparent;
    border-top-color: var(--accent-cyan);
    border-right-color: var(--accent-purple);
    border-radius: 50%;
    animation: spin-slow 8s linear infinite;
}

.avatar-inner {
    width: 180px;
    height: 180px;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.avatar-icon {
    font-size: 60px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.avatar-orbit {
    position: absolute;
    width: 300px;
    height: 300px;
    animation: spin-slow 12s linear infinite;
}

.orbit-dot {
    position: absolute;
    width: 40px;
    height: 40px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--accent-cyan);
    animation: spin-reverse 12s linear infinite;
}

.orbit-dot:nth-child(1) { top: -20px; left: 50%; transform: translateX(-50%); }
.orbit-dot:nth-child(2) { right: -20px; top: 50%; transform: translateY(-50%); }
.orbit-dot:nth-child(3) { bottom: -20px; left: 50%; transform: translateX(-50%); }
.orbit-dot:nth-child(4) { left: -20px; top: 50%; transform: translateY(-50%); }

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

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

.code-snippet-float {
    position: absolute;
    bottom: -40px;
    right: -80px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glow);
    border-radius: 12px;
    padding: 16px 20px;
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.8;
    animation: float 6s ease-in-out infinite;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.code-keyword { color: var(--accent-purple); }
.code-key { color: var(--accent-cyan); }
.code-string { color: var(--accent-green); }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.about-text-card {
    padding: 40px;
}

.about-subtitle {
    font-family: var(--font-display);
    font-size: 22px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--accent-cyan);
}

.about-text-card p {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-text-card strong {
    color: var(--text-primary);
}

.about-quick-info {
    display: flex;
    gap: 20px;
    margin-top: 24px;
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 14px;
    padding: 8px 16px;
    background: rgba(0, 245, 255, 0.05);
    border-radius: 8px;
    border: 1px solid var(--border-subtle);
}

.info-item i {
    color: var(--accent-cyan);
    font-size: 14px;
}

/* === SKILLS SECTION === */
.skills {
    background: var(--bg-secondary);
}

.skills-content {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.category-title {
    font-family: var(--font-display);
    font-size: 18px;
    letter-spacing: 1px;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-primary);
}

.category-title i {
    color: var(--accent-cyan);
    font-size: 20px;
}

.skill-hex-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: flex-start;
}

.hex-item {
    width: 110px;
    height: 110px;
    position: relative;
    transition: all var(--transition-medium);
    cursor: pointer;
}

.hex-inner {
    width: 100%;
    height: 100%;
    background: var(--bg-glass);
    border: 1px solid var(--border-glow);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.hex-inner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-glow);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.hex-item:hover .hex-inner::before {
    opacity: 1;
}

.hex-item:hover .hex-inner {
    border-color: var(--accent-cyan);
    box-shadow: var(--glow-cyan);
    transform: translateY(-8px) scale(1.05);
}

.hex-inner i {
    font-size: 28px;
    color: var(--accent-cyan);
    transition: all var(--transition-medium);
    position: relative;
    z-index: 1;
}

.hex-item:hover .hex-inner i {
    transform: scale(1.2);
    filter: drop-shadow(0 0 10px var(--accent-cyan));
}

.hex-inner span {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    z-index: 1;
}

/* === EXPERIENCE / TIMELINE === */
.timeline {
    position: relative;
    padding-left: 60px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent-cyan), var(--accent-purple), transparent);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
}

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

.timeline-marker {
    position: absolute;
    left: -52px;
    top: 24px;
    width: 16px;
    height: 16px;
    background: var(--accent-cyan);
    border-radius: 50%;
    z-index: 1;
    box-shadow: 0 0 20px rgba(0, 245, 255, 0.4);
}

.marker-pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--accent-cyan);
    border-radius: 50%;
    animation: marker-pulse 2s ease-in-out infinite;
}

@keyframes marker-pulse {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(3); opacity: 0; }
}

.timeline-content {
    padding: 32px;
}

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

.timeline-company h3 {
    font-family: var(--font-display);
    font-size: 20px;
    letter-spacing: 1px;
    margin-bottom: 6px;
}

.company-name {
    font-size: 14px;
    color: var(--accent-cyan);
    display: flex;
    align-items: center;
    gap: 6px;
}

.timeline-date {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.timeline-description {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 16px;
}

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

.tag {
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 4px 12px;
    background: rgba(0, 245, 255, 0.08);
    border: 1px solid rgba(0, 245, 255, 0.15);
    border-radius: 4px;
    color: var(--accent-cyan);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

/* === PROJECTS === */
.projects {
    background: var(--bg-primary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 30px;
}

.project-card {
    padding: 0;
    overflow: hidden;
    position: relative;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.project-card-inner {
    padding: 32px;
    position: relative;
    z-index: 1;
}

.project-icon-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.project-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--bg-primary);
    box-shadow: 0 4px 15px rgba(0, 245, 255, 0.2);
}

.project-number {
    font-family: var(--font-display);
    font-size: 40px;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.03);
    line-height: 1;
}

.project-title {
    font-family: var(--font-display);
    font-size: 20px;
    letter-spacing: 1px;
    margin-bottom: 6px;
}

.project-subtitle {
    font-size: 14px;
    color: var(--accent-cyan);
    margin-bottom: 12px;
    font-weight: 500;
}

.project-description {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
}

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

.project-tech span {
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 3px 10px;
    background: rgba(123, 47, 255, 0.1);
    border: 1px solid rgba(123, 47, 255, 0.2);
    border-radius: 4px;
    color: var(--accent-purple);
    letter-spacing: 0.5px;
}

.project-links {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.project-link {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--accent-cyan);
    padding: 8px 16px;
    border: 1px solid rgba(0, 245, 255, 0.2);
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.project-link:hover {
    background: rgba(0, 245, 255, 0.1);
    box-shadow: var(--glow-cyan);
}

.project-stars {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--accent-cyan);
    display: flex;
    align-items: center;
    gap: 6px;
}

.project-glow {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.project-card:hover .project-glow {
    opacity: 1;
    box-shadow: 0 0 20px rgba(0, 245, 255, 0.3);
}

.projects-cta {
    text-align: center;
    margin-top: 50px;
}

/* === EDUCATION === */
.education {
    background: var(--bg-secondary);
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 30px;
}

.edu-card {
    padding: 36px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.edu-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: var(--bg-primary);
    margin: 0 auto 20px;
    box-shadow: 0 4px 20px rgba(0, 245, 255, 0.3);
}

.edu-status {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.edu-status.active {
    background: rgba(0, 255, 136, 0.1);
    color: var(--accent-green);
    border: 1px solid rgba(0, 255, 136, 0.2);
}

.edu-status.completed {
    background: rgba(0, 245, 255, 0.1);
    color: var(--accent-cyan);
    border: 1px solid rgba(0, 245, 255, 0.2);
}

.edu-degree {
    font-family: var(--font-display);
    font-size: 18px;
    letter-spacing: 1px;
    margin-bottom: 10px;
    line-height: 1.4;
}

.edu-institution {
    color: var(--text-secondary);
    font-size: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 4px;
}

.edu-institution i {
    color: var(--accent-cyan);
}

.edu-affiliation {
    color: var(--text-muted);
    font-size: 12px;
    margin-bottom: 16px;
}

.edu-details {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.edu-score, .edu-year {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--text-secondary);
}

.edu-score i, .edu-year i {
    color: var(--accent-cyan);
}

.edu-glow {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: all var(--transition-medium);
}

.edu-card:hover .edu-glow {
    opacity: 1;
    width: 100%;
    box-shadow: 0 0 20px rgba(0, 245, 255, 0.3);
}

/* === ACHIEVEMENTS === */
.achievements {
    background: var(--bg-primary);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.achievement-card {
    padding: 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.achievement-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 16px;
}

.achievement-icon.trophy {
    background: linear-gradient(135deg, #FFD700, #FFA500);
    color: #1a1a2e;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.achievement-icon.medal {
    background: linear-gradient(135deg, #C0C0C0, #808080);
    color: #1a1a2e;
    box-shadow: 0 4px 15px rgba(192, 192, 192, 0.3);
}

.achievement-icon.rank {
    background: var(--gradient-primary);
    color: #1a1a2e;
    box-shadow: 0 4px 15px rgba(0, 245, 255, 0.3);
}

.achievement-icon.quiz {
    background: var(--gradient-secondary);
    color: white;
    box-shadow: 0 4px 15px rgba(123, 47, 255, 0.3);
}

.achievement-icon.cert {
    background: linear-gradient(135deg, var(--accent-green), #00cc6a);
    color: #1a1a2e;
    box-shadow: 0 4px 15px rgba(0, 255, 136, 0.3);
}

.achievement-card h3 {
    font-family: var(--font-display);
    font-size: 16px;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}

.achievement-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 12px;
}

.achievement-date {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent-cyan);
    letter-spacing: 1px;
}

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

/* === CONTACT === */
.contact {
    background: var(--bg-secondary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-subtitle {
    font-family: var(--font-display);
    font-size: 28px;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.contact-text {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 30px;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 30px;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 24px;
    cursor: pointer;
}

.contact-card-icon {
    width: 44px;
    height: 44px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--bg-primary);
    flex-shrink: 0;
}

.contact-card-label {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 2px;
}

.contact-card-value {
    font-size: 15px;
    color: var(--text-primary);
}

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

.social-link {
    width: 48px;
    height: 48px;
    border: 1px solid var(--border-glow);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    background: var(--bg-glass);
}

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

/* Contact Form */
.contact-form {
    padding: 40px;
}

.form-group {
    position: relative;
    margin-bottom: 28px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: rgba(0, 245, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    padding: 16px 18px;
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--text-primary);
    transition: all var(--transition-fast);
    outline: none;
}

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

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0, 245, 255, 0.1);
}

.form-group label {
    position: absolute;
    left: 18px;
    top: 16px;
    font-size: 14px;
    color: var(--text-muted);
    transition: all var(--transition-fast);
    pointer-events: none;
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -10px;
    left: 14px;
    font-size: 11px;
    color: var(--accent-cyan);
    background: var(--bg-secondary);
    padding: 0 6px;
    border-radius: 4px;
}

.form-line {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all var(--transition-medium);
    border-radius: 1px;
}

.form-group input:focus ~ .form-line,
.form-group textarea:focus ~ .form-line {
    left: 0;
    width: 100%;
}

.btn-submit {
    width: 100%;
    justify-content: center;
    padding: 16px;
    font-size: 16px;
}

/* === FOOTER === */
.footer {
    position: relative;
    padding: 60px 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-glow);
    overflow: hidden;
}

.footer-grid-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 245, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 245, 255, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.5;
}

.footer-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 20px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 20px;
}

.footer-links a {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-glow);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
    box-shadow: var(--glow-cyan);
    transform: translateY(-3px);
}

.footer-copyright {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 1px;
}

/* === REVEAL ANIMATIONS === */
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 0;
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-up {
    transform: translateY(50px);
}

.reveal-left {
    transform: translateX(-50px);
}

.reveal-right {
    transform: translateX(50px);
}

.reveal-up.revealed,
.reveal-left.revealed,
.reveal-right.revealed {
    opacity: 1;
    transform: translate(0, 0);
}

/* Staggered reveals */
.skill-hex-grid .hex-item {
    opacity: 0;
    transform: translateY(30px) scale(0.9);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-hex-grid .hex-item.revealed {
    opacity: 1;
    transform: translateY(0) scale(1);
}

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

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

/* Gradient Border Animation */
@keyframes gradient-border {
    0%, 100% { border-color: rgba(0, 245, 255, 0.3); }
    50% { border-color: rgba(123, 47, 255, 0.3); }
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(5, 5, 16, 0.97);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 20px;
        transition: right var(--transition-medium);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-link {
        font-size: 22px;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-stats {
        gap: 20px;
    }
    
    .stat-number {
        font-size: 28px;
    }
    
    .timeline {
        padding-left: 40px;
    }
    
    .timeline::before {
        left: 10px;
    }
    
    .timeline-marker {
        left: -37px;
        width: 12px;
        height: 12px;
    }
    
    .timeline-header {
        flex-direction: column;
    }
    
    .projects-grid,
    .education-grid,
    .achievements-grid {
        grid-template-columns: 1fr;
    }
    
    .about-avatar {
        width: 200px;
        height: 200px;
    }
    
    .avatar-inner {
        width: 140px;
        height: 140px;
    }
    
    .avatar-orbit {
        width: 240px;
        height: 240px;
    }
    
    .code-snippet-float {
        display: none;
    }
    
    .hero-corner {
        display: none;
    }

    .section-header {
        margin-bottom: 50px;
    }
}

@media (max-width: 480px) {
    .hero-name {
        letter-spacing: 2px;
    }
    
    .hero-cta-group {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
        max-width: 280px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .stat-divider {
        width: 40px;
        height: 1px;
    }
    
    .about-quick-info {
        flex-direction: column;
    }
    
    .hex-item {
        width: 90px;
        height: 90px;
    }
    
    .hex-inner i {
        font-size: 22px;
    }
    
    .hex-inner span {
        font-size: 9px;
    }
}