/* ========================================
   LYG Portfolio - 이윤건 자기소개 페이지
   Theme: Dark Space + Neon Accent
   ======================================== */

/* =====================
   CSS Custom Properties
   ===================== */
:root {
    --primary: #00e5a0;
    --primary-light: #5cffce;
    --primary-dark: #00b87a;
    --accent: #7c5cff;
    --accent-light: #a78bfa;
    --cyan: #00d4ff;
    --pink: #ff6b9d;
    --yellow: #ffd60a;
    --bg: #05060f;
    --bg-card: #0c0e1a;
    --bg-card-hover: #111428;
    --text: #e8e8f0;
    --text-dim: #8888a8;
    --text-bright: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.04);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(0, 229, 160, 0.3);
    --gradient-primary: linear-gradient(135deg, var(--primary), var(--cyan));
    --gradient-accent: linear-gradient(135deg, var(--accent), var(--pink));
    --radius: 16px;
    --radius-sm: 8px;
    --radius-lg: 24px;
    --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --font-main: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-mono: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
}

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

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

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

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

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

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

/* =====================
   Cursor Glow
   ===================== */
.cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 229, 160, 0.06) 0%, transparent 70%);
    pointer-events: none;
    z-index: 1;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    will-change: transform;
}

/* =====================
   Scroll Progress Bar
   ===================== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--gradient-primary);
    z-index: 10000;
    transition: width 0.1s linear;
    width: 0%;
}

/* =====================
   Container
   ===================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* =====================
   Navigation
   ===================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
    backdrop-filter: blur(0px);
}

.nav.scrolled {
    padding: 12px 32px;
    background: rgba(5, 6, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 1001;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

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

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

.nav-link {
    padding: 8px 16px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-dim);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    position: relative;
    letter-spacing: 0.5px;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

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

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

.nav-toggle.open span:nth-child(2) {
    opacity: 0;
}

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

/* =====================
   Buttons
   ===================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.5px;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 229, 160, 0.3);
}

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

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

/* =====================
   HERO SECTION
   ===================== */
.hero {
    position: relative;
    z-index: 2;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 120px 24px 60px;
}

.hero-content {
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    padding: 6px 20px;
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--primary);
    letter-spacing: 3px;
    margin-bottom: 32px;
    background: var(--glass-bg);
    animation: fadeInDown 0.8s ease-out;
}

.hero-name {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 8px;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

/* Glitch Effect */
.glitch {
    position: relative;
    display: inline-block;
    color: var(--text-bright);
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
}

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

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

.glitch:hover::before,
.glitch:hover::after {
    opacity: 0.8;
}

.hero-alias {
    font-family: var(--font-mono);
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-typing {
    font-family: var(--font-mono);
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    color: var(--text-dim);
    margin-bottom: 16px;
    min-height: 1.7em;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.typing-cursor {
    animation: blink 0.8s infinite;
    color: var(--primary);
    font-weight: 300;
}

.hero-motto {
    font-style: italic;
    color: var(--text-dim);
    font-size: 0.95rem;
    margin-bottom: 40px;
    opacity: 0.7;
    animation: fadeInUp 0.8s ease-out 0.5s both;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-tags {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.7s both;
}

.hero-tag {
    padding: 6px 18px;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--text-dim);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    letter-spacing: 0.5px;
    transition: var(--transition);
}

.hero-tag:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: 0 0 15px rgba(0, 229, 160, 0.2);
    text-shadow: 0 0 10px rgba(0, 229, 160, 0.3);
}

/* Scroll Hint */
.scroll-hint {
    position: absolute;
    bottom: 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    animation: fadeInUp 1s ease-out 1s both;
}

.scroll-hint span {
    font-size: 0.7rem;
    color: var(--text-dim);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.scroll-mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--glass-border);
    border-radius: 12px;
    position: relative;
    animation: scrollPulse 2s ease-in-out infinite;
}

.scroll-wheel {
    width: 3px;
    height: 8px;
    background: var(--primary);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheel 2s ease-in-out infinite;
}

/* =====================
   SECTIONS (Common)
   ===================== */
.section {
    position: relative;
    z-index: 2;
    padding: 120px 0;
}

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

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--primary);
    letter-spacing: 3px;
    margin-bottom: 12px;
    padding: 4px 16px;
    background: rgba(0, 229, 160, 0.06);
    border: 1px solid rgba(0, 229, 160, 0.15);
    border-radius: 50px;
    text-shadow: 0 0 20px rgba(0, 229, 160, 0.4);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    color: var(--text-bright);
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
    box-shadow: 0 0 12px rgba(0, 229, 160, 0.4);
}

.section-subtitle {
    color: var(--text-dim);
    font-size: 1rem;
    margin-top: 8px;
}

/* =====================
   SECTION DIVIDER
   ===================== */
.section-divider {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 0;
}

.section-divider::before,
.section-divider::after {
    content: '';
    flex: 1;
    max-width: 200px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 229, 160, 0.2), transparent);
}

.divider-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
    margin: 0 20px;
    box-shadow: 0 0 12px rgba(0, 229, 160, 0.5);
    animation: dividerPulse 3s ease-in-out infinite;
}

@keyframes dividerPulse {
    0%, 100% { box-shadow: 0 0 12px rgba(0, 229, 160, 0.5); transform: scale(1); }
    50% { box-shadow: 0 0 24px rgba(0, 229, 160, 0.8); transform: scale(1.3); }
}

/* =====================
   ABOUT SECTION
   ===================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
    align-items: start;
}

.about-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    transition: var(--transition);
}

.about-card:hover {
    border-color: var(--glass-border-hover);
    transform: translateY(-4px);
    box-shadow: 0 0 30px rgba(0, 229, 160, 0.1), inset 0 0 30px rgba(0, 229, 160, 0.03);
}

.about-avatar {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.avatar-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 2px solid transparent;
    background: conic-gradient(var(--primary), var(--cyan), var(--accent), var(--primary)) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    animation: spin 6s linear infinite;
}

.avatar-img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    position: relative;
    z-index: 1;
    background-color: #333333;
}

.avatar-text {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 4px;
}

.about-eng {
    font-size: 0.85rem;
    color: var(--text-dim);
    font-weight: 400;
}

.about-role {
    color: var(--primary);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.about-goal {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(0, 229, 160, 0.08);
    border-radius: 50px;
    border: 1px solid rgba(0, 229, 160, 0.15);
}

.goal-text {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--primary);
    letter-spacing: 2px;
}

.about-details {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.detail-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px;
    padding-left: 28px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    transition: var(--transition);
    transition-delay: var(--delay, 0s);
    position: relative;
    overflow: hidden;
    background-image: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(0, 229, 160, 0.04) 0%, transparent 60%);
}

.detail-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transition: transform 0.4s ease;
    border-radius: 0 2px 2px 0;
}

.detail-card:hover::before {
    transform: scaleY(1);
}

.detail-card:hover {
    border-color: var(--glass-border-hover);
    transform: translateX(8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2), 0 0 20px rgba(0, 229, 160, 0.05);
}

.detail-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 229, 160, 0.08);
    border-radius: 12px;
    transition: var(--transition);
}

.detail-card:hover .detail-icon {
    transform: scale(1.1);
    background: rgba(0, 229, 160, 0.15);
    box-shadow: 0 0 20px rgba(0, 229, 160, 0.15);
}

.detail-content h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 4px;
}

.detail-content p {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.6;
}

/* =====================
   DEVELOPER'S LIFE COUNTER
   ===================== */
.dev-life-section {
    padding: 60px 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.dev-life-container {
    text-align: center;
    padding: 50px 60px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    backdrop-filter: blur(20px);
    max-width: 700px;
    width: 100%;
    transition: var(--transition);
    position: relative;
}

.dev-life-container:hover {
    border-color: rgba(0, 229, 160, 0.2);
    box-shadow: 0 0 40px rgba(0, 229, 160, 0.06);
}

.dev-life-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 6px;
    color: var(--primary);
    margin-bottom: 4px;
}

.dev-life-since {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-dim);
    margin-bottom: 30px;
    letter-spacing: 2px;
}

.dev-life-counter {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.counter-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 80px;
}

.counter-number {
    font-family: var(--font-mono);
    font-size: 3.2rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
    background: linear-gradient(135deg, var(--text) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.counter-unit {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--text-dim);
    letter-spacing: 3px;
    margin-top: 6px;
}

.counter-separator {
    font-family: var(--font-mono);
    font-size: 2.4rem;
    color: var(--primary);
    opacity: 0.4;
    margin-bottom: 18px;
}

.dev-life-bar {
    margin: 28px auto 12px;
    width: 100%;
    max-width: 400px;
    height: 4px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 4px;
    overflow: hidden;
}

.dev-life-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 4px;
    transition: width 1s ease;
    width: 0%;
    box-shadow: 0 0 12px rgba(0, 229, 160, 0.4);
}

.dev-life-milestone {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-dim);
    letter-spacing: 1px;
}

.dev-life-milestone span {
    color: var(--primary);
    font-weight: 700;
}

@media (max-width: 480px) {
    .dev-life-container {
        padding: 36px 24px;
    }
    .counter-number {
        font-size: 2rem;
    }
    .counter-block {
        min-width: 55px;
    }
    .counter-separator {
        font-size: 1.6rem;
    }
}

/* =====================
   SKILLS SECTION
   ===================== */
.skills-orbit-wrap {
    position: relative;
    width: 100%;
    max-width: 500px;
    height: 500px;
    margin: 0 auto 64px;
}

#skillOrbit {
    width: 100%;
    height: 100%;
}

.orbit-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: none;
}

.orbit-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 4px;
}

.orbit-sub {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-dim);
    letter-spacing: 6px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.skill-card {
    padding: 28px 24px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    transition: var(--transition);
    text-align: center;
}

.skill-card:hover {
    border-color: var(--glass-border-hover);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 25px rgba(0, 229, 160, 0.06);
}

.skill-icon-wrap {
    margin-bottom: 16px;
}

.skill-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 229, 160, 0.08);
    border-radius: 16px;
    transition: var(--transition);
}

.skill-card:hover .skill-icon {
    transform: scale(1.1);
    background: rgba(0, 229, 160, 0.15);
}

.skill-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 6px;
}

.skill-card p {
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-bottom: 16px;
}

.skill-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 2px;
    overflow: hidden;
}

.skill-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 2px;
    width: 0%;
    transition: width 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* =====================
   PROJECTS SECTION
   ===================== */
.project-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 24px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    color: var(--text-dim);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-main);
}

.filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: 0 0 12px rgba(0, 229, 160, 0.15);
}

.filter-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: var(--bg);
    box-shadow: 0 4px 20px rgba(0, 229, 160, 0.3);
}

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

.project-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 32px 28px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

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

.project-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.04), transparent);
    transition: left 0.8s ease;
    pointer-events: none;
}

.project-card:hover::after {
    left: 120%;
}

.project-card:hover {
    border-color: var(--glass-border-hover);
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 30px rgba(0, 229, 160, 0.06);
}

.project-card-tag {
    display: inline-block;
    padding: 4px 12px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: 50px;
    margin-bottom: 16px;
}

.project-card-tag {
    transition: var(--transition);
}

.project-card-tag.team {
    background: rgba(124, 92, 255, 0.15);
    color: var(--accent-light);
    border: 1px solid rgba(124, 92, 255, 0.3);
}

.project-card:hover .project-card-tag.team {
    box-shadow: 0 0 15px rgba(124, 92, 255, 0.3);
}

.project-card-tag.personal {
    background: rgba(0, 229, 160, 0.1);
    color: var(--primary);
    border: 1px solid rgba(0, 229, 160, 0.3);
}

.project-card:hover .project-card-tag.personal {
    box-shadow: 0 0 15px rgba(0, 229, 160, 0.3);
}

.project-card-tag.competition {
    background: rgba(255, 214, 10, 0.1);
    color: var(--yellow);
    border: 1px solid rgba(255, 214, 10, 0.3);
}

.project-card:hover .project-card-tag.competition {
    box-shadow: 0 0 15px rgba(255, 214, 10, 0.3);
}

.project-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 8px;
}

.project-card-desc {
    font-size: 0.875rem;
    color: var(--text-dim);
    margin-bottom: 20px;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.project-card-techs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.project-tech {
    padding: 3px 10px;
    font-size: 0.7rem;
    font-family: var(--font-mono);
    color: var(--text-dim);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 4px;
    transition: var(--transition);
}

.project-card:hover .project-tech {
    border-color: rgba(0, 229, 160, 0.2);
    color: var(--primary-light);
}

.project-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--glass-border);
}

.project-card-period {
    font-size: 0.75rem;
    color: var(--text-dim);
}

.project-card-arrow {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0, 229, 160, 0.08);
    color: var(--primary);
    font-size: 0.9rem;
    transition: var(--transition);
}

.project-card:hover .project-card-arrow {
    background: var(--primary);
    color: var(--bg);
    transform: rotate(-45deg);
    box-shadow: 0 0 20px rgba(0, 229, 160, 0.4);
}

/* =====================
   PROJECT MODAL
   ===================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

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

.modal {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    max-width: 640px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    padding: 40px;
    transform: scale(0.9) translateY(20px);
    transition: var(--transition);
    position: relative;
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--text);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    line-height: 1;
}

.modal-close:hover {
    background: rgba(255, 107, 157, 0.15);
    border-color: var(--pink);
    color: var(--pink);
}

.modal-header {
    margin-bottom: 24px;
}

.modal-tag {
    display: inline-block;
    padding: 4px 12px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: 50px;
    margin-bottom: 12px;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-bright);
}

.modal-desc {
    color: var(--text-dim);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 24px;
}

.modal-meta {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.modal-meta-item {
    padding: 16px;
    background: var(--glass-bg);
    border-radius: var(--radius-sm);
    text-align: center;
}

.meta-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-dim);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 6px;
}

.meta-value {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-bright);
}

.modal-techs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.modal-tech {
    padding: 5px 14px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    background: rgba(0, 229, 160, 0.08);
    border: 1px solid rgba(0, 229, 160, 0.2);
    border-radius: 4px;
    color: var(--primary);
}

.modal-details h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 12px;
}

.modal-details ul {
    list-style: none;
    padding: 0;
}

.modal-details li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.6;
}

.modal-details li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--primary);
}

.modal-link-wrap {
    margin-top: 20px;
    text-align: center;
}

.modal-link-btn {
    display: inline-block;
    padding: 10px 28px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--bg);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 229, 160, 0.3);
}

.modal-link-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(0, 229, 160, 0.5);
}

/* =====================
   TIMELINE SECTION
   ===================== */
.timeline {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
    padding: 20px 0;
}

.timeline-line {
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, transparent, var(--glass-border) 10%, var(--glass-border) 90%, transparent);
    overflow: hidden;
}

.timeline-line::after {
    content: '';
    position: absolute;
    top: -50%;
    left: 0;
    width: 100%;
    height: 30%;
    background: linear-gradient(to bottom, transparent, var(--primary), transparent);
    animation: timelineFlow 4s ease-in-out infinite;
}

@keyframes timelineFlow {
    0% { top: -30%; }
    100% { top: 100%; }
}

.timeline-item {
    position: relative;
    padding-left: 72px;
    margin-bottom: 40px;
}

.timeline-dot {
    position: absolute;
    left: 17px;
    top: 8px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid var(--glass-border);
    background: var(--bg);
    z-index: 1;
    transition: var(--transition);
}

.timeline-dot::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 1px solid transparent;
    transition: var(--transition);
}

.timeline-item:hover .timeline-dot::after {
    border-color: rgba(0, 229, 160, 0.3);
    animation: dotRing 1.5s ease-in-out infinite;
}

@keyframes dotRing {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.5); opacity: 0; }
}

.timeline-item:hover .timeline-dot {
    border-color: var(--primary);
    background: rgba(0, 229, 160, 0.2);
    box-shadow: 0 0 15px rgba(0, 229, 160, 0.3);
}

.timeline-dot.active {
    border-color: var(--primary);
    background: var(--primary);
    box-shadow: 0 0 20px rgba(0, 229, 160, 0.4);
}

.timeline-dot.future {
    border-color: var(--accent);
    border-style: dashed;
}

.timeline-card {
    padding: 24px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    transition: var(--transition);
}

.timeline-card:hover {
    border-color: var(--glass-border-hover);
    transform: translateX(8px) scale(1.02);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3), 0 0 20px rgba(0, 229, 160, 0.05);
}

.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--primary);
    letter-spacing: 1px;
    margin-bottom: 8px;
    display: block;
}

.timeline-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 4px;
}

.timeline-card p {
    font-size: 0.875rem;
    color: var(--text-dim);
}

/* =====================
   CONTACT SECTION
   ===================== */
.contact-cta {
    text-align: center;
    margin-bottom: 48px;
}

.cta-text {
    font-size: clamp(1.3rem, 3vw, 1.8rem);
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--text-bright) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-sub {
    font-size: 0.95rem;
    color: var(--text-dim);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.contact-card {
    padding: 32px 24px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
    display: block;
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius);
    padding: 1px;
    background: linear-gradient(135deg, transparent, var(--primary), var(--accent), transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.contact-card:hover::before {
    opacity: 1;
}

.contact-card:hover {
    border-color: transparent;
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 30px rgba(0, 229, 160, 0.08);
}

.contact-icon {
    font-size: 2rem;
    margin-bottom: 16px;
    display: inline-block;
    animation: contactFloat 3s ease-in-out infinite;
    animation-delay: var(--delay, 0s);
}

@keyframes contactFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

.contact-card h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 8px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.contact-card p {
    font-size: 0.9rem;
    color: var(--text-dim);
    word-break: break-all;
    transition: var(--transition);
}

.contact-card:hover p {
    color: var(--primary);
}

.contact-motto {
    text-align: center;
    padding: 40px;
    border-top: 1px solid var(--glass-border);
}

.contact-motto p {
    font-size: 1.2rem;
    font-style: italic;
    color: var(--text-dim);
    line-height: 1.8;
}

/* =====================
   FOOTER
   ===================== */
.footer {
    position: relative;
    z-index: 2;
    padding: 48px 0 24px;
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.footer-logo {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

.footer-tagline {
    font-size: 0.75rem;
    color: var(--text-dim);
    letter-spacing: 1px;
}

.footer-nav {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.footer-nav a {
    font-size: 0.8rem;
    color: var(--text-dim);
    transition: var(--transition);
    letter-spacing: 0.5px;
}

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

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

.footer-bottom p {
    font-size: 0.75rem;
    color: var(--text-dim);
    opacity: 0.6;
}

/* =====================
   REVEAL ANIMATION
   ===================== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
    transition-delay: var(--delay, 0s);
}

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

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

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

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

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

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

@keyframes scrollWheel {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

@keyframes glitch-1 {
    0%, 90% { clip-path: inset(0 0 0 0); transform: translate(0); opacity: 0; }
    92% { clip-path: inset(20% 0 60% 0); transform: translate(-4px, 2px); opacity: 0.8; }
    94% { clip-path: inset(60% 0 10% 0); transform: translate(4px, -2px); opacity: 0.8; }
    96% { clip-path: inset(40% 0 30% 0); transform: translate(-2px, 4px); opacity: 0.8; }
    98% { clip-path: inset(10% 0 70% 0); transform: translate(2px, -4px); opacity: 0.8; }
    100% { clip-path: inset(0 0 0 0); transform: translate(0); opacity: 0; }
}

@keyframes glitch-2 {
    0%, 88% { clip-path: inset(0 0 0 0); transform: translate(0); opacity: 0; }
    90% { clip-path: inset(50% 0 20% 0); transform: translate(4px, -2px); opacity: 0.8; }
    93% { clip-path: inset(10% 0 60% 0); transform: translate(-4px, 2px); opacity: 0.8; }
    95% { clip-path: inset(70% 0 5% 0); transform: translate(2px, 4px); opacity: 0.8; }
    97% { clip-path: inset(30% 0 40% 0); transform: translate(-2px, -4px); opacity: 0.8; }
    100% { clip-path: inset(0 0 0 0); transform: translate(0); opacity: 0; }
}

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(5, 6, 15, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 100px 32px 32px;
        gap: 4px;
        transition: right 0.4s ease;
        border-left: 1px solid var(--glass-border);
    }

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

    .nav-toggle {
        display: flex;
    }

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

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

    .skills-orbit-wrap {
        height: 350px;
    }

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

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

    .modal-meta {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }

    .footer-nav {
        justify-content: center;
    }

    .modal {
        padding: 24px;
    }

    .hero-stats {
        gap: 20px;
    }

    .hero-stat-num {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .nav {
        padding: 12px 16px;
    }

    .hero {
        padding: 100px 16px 40px;
    }

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

    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .section {
        padding: 80px 0;
    }

    .container {
        padding: 0 16px;
    }

    .timeline-item {
        padding-left: 56px;
    }

    .footer-nav {
        gap: 16px;
    }

    .footer-nav a {
        font-size: 0.7rem;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}