/* ========================================
   LYG Portfolio - Modern Minimal
   Apple / Linear inspired design
   Clean typography, generous whitespace
   ======================================== */

/* =====================
   CSS Custom Properties
   ===================== */
:root {
    --black: #000000;
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    --gray-950: #0a0a0a;

    --accent: #0071e3;
    --accent-light: #2997ff;
    --accent-bg: rgba(0, 113, 227, 0.06);

    --bg: var(--gray-950);
    --bg-card: #111111;
    --bg-card-hover: #1a1a1a;
    --text: var(--gray-300);
    --text-dim: var(--gray-500);
    --text-bright: var(--white);
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);

    --radius: 12px;
    --radius-lg: 20px;
    --transition: 0.3s ease;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Cascadia Code', 'Fira Code', 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);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background: var(--accent);
    color: var(--white);
}

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

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

/* =====================
   Preloader
   ===================== */
.preloader {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preloader-half {
    position: absolute;
    left: 0;
    right: 0;
    height: 50%;
    background: var(--bg);
    transition: transform 1s cubic-bezier(0.76, 0, 0.24, 1);
}

.preloader-top { top: 0; }
.preloader-bottom { bottom: 0; }

.preloader-text {
    position: relative;
    z-index: 1;
    font-family: var(--font-mono);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--white);
    letter-spacing: 8px;
}

.preloader.done .preloader-top { transform: translateY(-100%); }
.preloader.done .preloader-bottom { transform: translateY(100%); }
.preloader.done .preloader-text { opacity: 0; transition: opacity 0.3s; }
.preloader.hidden { display: none; }

/* =====================
   Scroll Progress
   ===================== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    background: var(--accent);
    z-index: 10000;
    width: 0%;
    transition: width 0.1s linear;
}

/* =====================
   Container
   ===================== */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* =====================
   Navigation
   ===================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.nav.scrolled {
    padding: 14px 32px;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 4px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-dim);
    border-radius: 8px;
    transition: var(--transition);
}

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

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

.nav-toggle span {
    width: 22px;
    height: 1.5px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(4.5px, 4.5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(4.5px, -4.5px); }

/* =====================
   Buttons
   ===================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    font-family: var(--font);
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

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

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-1px);
}

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

.btn-ghost:hover {
    border-color: var(--border-hover);
    color: var(--white);
}

/* =====================
   HERO
   ===================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-greeting {
    font-size: 1rem;
    color: var(--text-dim);
    margin-bottom: 12px;
}

.hero-name {
    font-size: clamp(3.5rem, 7vw, 5.5rem);
    font-weight: 900;
    color: var(--white);
    line-height: 1.05;
    letter-spacing: -2px;
    margin-bottom: 16px;
}

.hero-dot {
    color: var(--accent);
}

.hero-typing {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--text-dim);
    margin-bottom: 20px;
    min-height: 1.7em;
}

.typing-cursor {
    color: var(--accent);
    animation: blink .8s step-end infinite;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 440px;
}

.hero-actions {
    display: flex;
    gap: 12px;
}

/* Hero Code Card */
.hero-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.hero-card-header {
    display: flex;
    gap: 6px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
}

.card-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

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

.hero-code {
    padding: 24px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.8;
    color: var(--text);
    overflow-x: auto;
}

.hero-code code {
    white-space: pre;
}

.code-keyword { color: #c678dd; }
.code-var { color: #e5c07b; }
.code-key { color: #e06c75; }
.code-str { color: #98c379; }

/* Scroll Hint */
.scroll-hint {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.6); transform-origin: top; }
    50% { opacity: 1; transform: scaleY(1); }
}

/* =====================
   SECTIONS
   ===================== */
.section {
    padding: 140px 0;
}

.section-compact {
    padding: 80px 0;
}

.section-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--white);
    letter-spacing: -1px;
    margin-bottom: 20px;
}

.title-dot {
    color: var(--accent);
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-dim);
    max-width: 560px;
    margin-bottom: 60px;
}

/* =====================
   ABOUT
   ===================== */
.about-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 60px;
    margin-top: 60px;
    align-items: start;
}

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

.about-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--border);
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background-color: var(--gray-800);
}

.about-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 2px;
}

.about-eng {
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-bottom: 4px;
}

.about-role {
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 16px;
}

.about-motto {
    display: inline-block;
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
}

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

.about-info {
    display: flex;
    flex-direction: column;
}

.info-item {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 24px;
    padding: 24px 0;
    border-bottom: 1px solid var(--border);
}

.info-item:first-child {
    padding-top: 0;
}

.info-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-dim);
    letter-spacing: 0.5px;
}

.info-value {
    font-size: 0.95rem;
    color: var(--text);
}

.info-value p {
    line-height: 1.8;
}

/* =====================
   DEV LIFE
   ===================== */
.devlife-card {
    text-align: center;
    padding: 60px 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

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

.devlife-since {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-dim);
    margin-bottom: 32px;
    letter-spacing: 2px;
}

.devlife-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: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1;
}

.counter-number.flip {
    animation: flipNum 0.4s ease-in-out;
}

@keyframes flipNum {
    0% { transform: rotateX(0); }
    40% { transform: rotateX(-90deg); opacity: 0.3; }
    60% { transform: rotateX(-90deg); opacity: 0.3; }
    100% { transform: rotateX(0); opacity: 1; }
}

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

.counter-sep {
    font-family: var(--font-mono);
    font-size: 2rem;
    color: var(--text-dim);
    opacity: 0.3;
    margin-bottom: 18px;
}

.devlife-progress {
    margin-top: 32px;
}

.devlife-bar {
    width: 100%;
    max-width: 400px;
    height: 3px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 2px;
    overflow: hidden;
    margin: 0 auto 12px;
}

.devlife-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 2px;
    width: 0%;
    transition: width 1s ease;
}

.devlife-goal {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-dim);
}

.devlife-goal span {
    color: var(--accent);
    font-weight: 700;
}

/* =====================
   SKILLS
   ===================== */
.skills-orbit-wrap {
    position: relative;
    width: 100%;
    max-width: 460px;
    height: 460px;
    margin: 0 auto 60px;
}

#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: 1.2rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 4px;
}

.orbit-sub {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--text-dim);
    letter-spacing: 6px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

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

.skill-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.skill-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
}

.skill-icon {
    font-size: 1.5rem;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 10px;
    flex-shrink: 0;
}

.skill-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 2px;
}

.skill-sub {
    font-size: 0.75rem;
    color: var(--text-dim);
}

.skill-bar {
    width: 100%;
    height: 3px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 12px;
}

.skill-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 2px;
    width: 0%;
    transition: width 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.skill-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.72rem;
    color: var(--text-dim);
}

/* =====================
   PROJECTS
   ===================== */
.project-filters {
    display: flex;
    gap: 8px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 50px;
    color: var(--text-dim);
    font-size: 0.85rem;
    font-weight: 500;
    font-family: var(--font);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover {
    border-color: var(--border-hover);
    color: var(--white);
}

.filter-btn.active {
    background: var(--white);
    border-color: var(--white);
    color: var(--black);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 16px;
}

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

.project-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.project-card-tag {
    display: inline-block;
    padding: 3px 10px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border-radius: 50px;
    margin-bottom: 14px;
}

.project-card-tag.team {
    background: rgba(147, 51, 234, 0.1);
    color: #a855f7;
    border: 1px solid rgba(147, 51, 234, 0.2);
}

.project-card-tag.personal {
    background: var(--accent-bg);
    color: var(--accent-light);
    border: 1px solid rgba(0, 113, 227, 0.2);
}

.project-card-tag.competition {
    background: rgba(234, 179, 8, 0.08);
    color: #eab308;
    border: 1px solid rgba(234, 179, 8, 0.2);
}

.project-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 8px;
}

.project-card-desc {
    font-size: 0.85rem;
    color: var(--text-dim);
    line-height: 1.6;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.project-card-techs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 16px;
}

.project-tech {
    padding: 3px 8px;
    font-size: 0.7rem;
    font-family: var(--font-mono);
    color: var(--text-dim);
    background: rgba(255, 255, 255, 0.04);
    border-radius: 4px;
}

.project-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 14px;
    border-top: 1px solid var(--border);
}

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

.project-card-arrow {
    font-size: 0.85rem;
    color: var(--text-dim);
    transition: var(--transition);
}

.project-card:hover .project-card-arrow {
    color: var(--accent);
    transform: translateX(4px);
}

/* =====================
   MODAL
   ===================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    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(--border);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    padding: 36px;
    transform: scale(0.96) translateY(10px);
    transition: var(--transition);
    position: relative;
}

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

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    border-radius: 50%;
    color: var(--text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.modal-header { margin-bottom: 20px; }

.modal-tag {
    display: inline-block;
    padding: 3px 10px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border-radius: 50px;
    margin-bottom: 10px;
}

.modal-title {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--white);
}

.modal-desc {
    color: var(--text);
    font-size: 0.9rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.modal-meta {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.modal-meta-item {
    padding: 14px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    text-align: center;
}

.meta-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-dim);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.meta-value {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--white);
}

.modal-techs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 20px;
}

.modal-tech {
    padding: 4px 12px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    background: var(--accent-bg);
    border-radius: 4px;
    color: var(--accent-light);
}

.modal-details h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 10px;
}

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

.modal-details li {
    position: relative;
    padding-left: 18px;
    margin-bottom: 6px;
    font-size: 0.85rem;
    color: var(--text);
}

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

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

.modal-link-btn {
    display: inline-block;
    padding: 10px 24px;
    background: var(--accent);
    color: var(--white);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
}

.modal-link-btn:hover {
    background: var(--accent-light);
}

/* =====================
   TIMELINE
   ===================== */
.timeline {
    max-width: 700px;
    margin: 60px auto 0;
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 8px;
    bottom: 8px;
    width: 1px;
    background: var(--border);
}

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

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

.timeline-marker {
    position: absolute;
    left: -36px;
    top: 6px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--bg);
    border: 2px solid var(--text-dim);
    transition: var(--transition);
    z-index: 1;
}

.timeline-item:hover .timeline-marker {
    border-color: var(--accent);
    background: var(--accent);
    box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.15);
}

.timeline-marker.active {
    border-color: var(--accent);
    background: var(--accent);
}

.timeline-marker.future {
    border-style: dashed;
    border-color: var(--text-dim);
}

.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-dim);
    letter-spacing: 1px;
    display: block;
    margin-bottom: 6px;
}

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

.timeline-content p {
    font-size: 0.85rem;
    color: var(--text-dim);
}

/* =====================
   GITHUB
   ===================== */
.github-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-top: 40px;
}

.github-profile {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 32px;
}

.github-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--gray-800);
}

.github-info h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 2px;
}

.github-bio {
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-bottom: 12px;
}

.github-stats {
    display: flex;
    gap: 20px;
}

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

.stat-num {
    display: block;
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
}

.stat-label {
    font-size: 0.65rem;
    color: var(--text-dim);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.heatmap-section {
    padding: 24px 32px 28px;
    border-top: 1px solid var(--border);
}

.heatmap-title {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-dim);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

#heatmapCanvas {
    width: 100%;
    height: 120px;
    border-radius: 6px;
}

.heatmap-legend {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 6px;
    margin-top: 10px;
}

.heatmap-label {
    font-size: 0.6rem;
    color: var(--text-dim);
}

.heatmap-scale {
    display: flex;
    gap: 2px;
}

.heatmap-scale span {
    width: 10px;
    height: 10px;
    border-radius: 2px;
}

/* =====================
   VISITOR STATS
   ===================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.stat-card {
    padding: 28px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
}

.stat-card-num {
    font-family: var(--font-mono);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 4px;
}

.stat-card-label {
    font-size: 0.72rem;
    color: var(--text-dim);
    letter-spacing: 0.5px;
}

/* =====================
   CONTACT
   ===================== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 60px;
}

.contact-card {
    padding: 28px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
    display: block;
}

.contact-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.contact-label {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-dim);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.contact-value {
    font-size: 0.95rem;
    color: var(--white);
    font-weight: 500;
    word-break: break-all;
}

.contact-quote {
    text-align: center;
    padding: 40px 0 0;
}

.contact-quote blockquote {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--text-dim);
}

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

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 2px;
}

.footer-copy {
    font-size: 0.75rem;
    color: var(--text-dim);
}

/* =====================
   BACK TO TOP
   ===================== */
.back-to-top {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 900;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
}

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

.back-to-top:hover {
    border-color: var(--border-hover);
    color: var(--white);
}

/* =====================
   EASTER EGG
   ===================== */
.yar-mode {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.5);
    z-index: 9998;
    font-family: var(--font-mono);
    font-size: clamp(1.2rem, 4vw, 2.5rem);
    font-weight: 900;
    color: #ffd700;
    text-shadow: 0 0 40px rgba(255, 215, 0, 0.6);
    letter-spacing: 4px;
    text-align: center;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    white-space: nowrap;
}

.yar-mode.active {
    visibility: visible;
    animation: yarAppear 5s ease-in-out forwards;
}

@keyframes yarAppear {
    0% { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
    15% { opacity: 1; transform: translate(-50%, -50%) scale(1.05); }
    25% { transform: translate(-50%, -50%) scale(1); }
    75% { opacity: 1; }
    100% { opacity: 0; transform: translate(-50%, -50%) scale(0.9); }
}

/* =====================
   REVEAL ANIMATION
   ===================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
    transition-delay: var(--delay, 0s);
}

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

.fade-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    transition-delay: var(--delay, 0s);
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--gray-700);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-600);
}

/* =====================
   KEYFRAMES
   ===================== */
@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

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

    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }

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

    .hero-visual {
        max-width: 480px;
        margin: 0 auto;
    }

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

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 260px;
        height: 100vh;
        background: rgba(10, 10, 10, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 100px 24px;
        gap: 4px;
        transition: right 0.3s ease;
        border-left: 1px solid var(--border);
    }

    .nav-links.open { right: 0; }
    .nav-toggle { display: flex; }

    .section { padding: 100px 0; }

    .skills-grid { grid-template-columns: 1fr; }
    .project-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .modal-meta { grid-template-columns: 1fr; }

    .github-profile {
        flex-direction: column;
        text-align: center;
    }

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

    .footer-inner {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .nav { padding: 14px 16px; }
    .hero { padding-top: 60px; }
    .hero-name { font-size: clamp(2.5rem, 10vw, 3.5rem); }

    .container { padding: 0 16px; }

    .info-item {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .devlife-card { padding: 40px 20px; }
    .counter-number { font-size: 2rem; }
    .counter-block { min-width: 55px; }
    .counter-sep { font-size: 1.4rem; }

    .section-compact { padding: 60px 0; }

    .stats-grid { gap: 10px; }
    .stat-card { padding: 20px 12px; }
    .stat-card-num { font-size: 1.2rem; }
}

/* =====================
   REDUCED MOTION
   ===================== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .preloader { display: none; }
}