/* ============================================================
   PORTFOLIO - Programming Dark Theme
   ============================================================ */

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

:root {
    --bg-primary: #0a0a12;
    --bg-secondary: #0f0f1a;
    --bg-terminal: #1a1a2e;
    --bg-window: #16162a;
    --bg-window-header: #1e1e3a;

    --text-primary: #e0e0f0;
    --text-secondary: #8888aa;
    --text-dim: #55556a;

    --accent-green: #00ff88;
    --accent-cyan: #00d4ff;
    --accent-purple: #b44dff;
    --accent-pink: #ff6bc1;
    --accent-yellow: #ffd866;
    --accent-orange: #ff9e64;
    --accent-red: #ff5555;

    --border-color: #2a2a4a;
    --glow-green: rgba(0, 255, 136, 0.15);
    --glow-cyan: rgba(0, 212, 255, 0.15);

    --font-mono: 'Fira Code', 'JetBrains Mono', 'Courier New', monospace;
    --font-size-base: 16px;

    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
    -webkit-tap-highlight-color: rgba(0, 212, 255, 0.15);
}

body {
    font-family: var(--font-mono);
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

::selection {
    background: var(--accent-purple);
    color: #fff;
}

a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: color var(--transition-smooth);
}

a:hover {
    color: var(--accent-green);
}

.hidden {
    display: none !important;
}

/* ============================================================
   INTRO / TYPEWRITER SCREEN
   ============================================================ */

#intro-screen {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: opacity 0.8s ease, transform 0.8s ease;
}

#intro-screen.fade-out {
    opacity: 0;
    transform: scale(1.05);
    pointer-events: none;
}

.intro-terminal {
    width: 600px;
    max-width: 90vw;
}

.skip-hint {
    margin-top: 2rem;
    color: var(--text-dim);
    font-size: 0.8rem;
    animation: pulse-dim 2s ease-in-out infinite;
}

@keyframes pulse-dim {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.8; }
}

/* ============================================================
   TERMINAL / WINDOW BOX (PC-style)
   ============================================================ */

.terminal-window,
.window-box {
    background: var(--bg-window);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow:
        0 4px 30px rgba(0, 0, 0, 0.5),
        0 0 60px rgba(0, 212, 255, 0.03);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease, box-shadow var(--transition-smooth);
}

.terminal-window {
    opacity: 1;
    transform: none;
}

.window-box.visible {
    opacity: 1;
    transform: translateY(0);
}

.window-box:hover {
    box-shadow:
        0 8px 40px rgba(0, 0, 0, 0.6),
        0 0 80px var(--glow-cyan);
    border-color: var(--accent-cyan);
}

.terminal-header,
.window-header {
    display: flex;
    align-items: center;
    padding: 10px 16px;
    background: var(--bg-window-header);
    border-bottom: 1px solid var(--border-color);
    gap: 12px;
}

.terminal-dots,
.window-dots {
    display: flex;
    gap: 8px;
}

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

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

.terminal-title,
.window-title {
    flex: 1;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.window-controls {
    display: flex;
    gap: 10px;
}

.win-btn {
    color: var(--text-dim);
    font-size: 0.7rem;
    cursor: default;
}

.terminal-body,
.window-body {
    padding: 24px;
    font-size: 0.95rem;
}

/* ============================================================
   TYPEWRITER SPECIFIC STYLES
   ============================================================ */

.code-line {
    display: flex;
    align-items: center;
    gap: 16px;
    min-height: 1.8em;
}

.line-number {
    color: var(--text-dim);
    min-width: 2ch;
    text-align: right;
    user-select: none;
}

.cursor-blink {
    color: var(--accent-green);
    font-weight: 700;
    animation: blink 1s step-end infinite;
}

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

.output-line {
    margin-top: 4px;
}

.output-text {
    color: var(--accent-green);
}

/* ============================================================
   SYNTAX HIGHLIGHTING COLORS
   ============================================================ */

.keyword { color: var(--accent-purple); font-weight: 600; }
.variable { color: var(--accent-cyan); }
.operator { color: var(--accent-pink); }
.string { color: var(--accent-yellow); }
.punctuation { color: var(--text-secondary); }
.function, .function-name { color: var(--accent-green); }
.method { color: var(--accent-green); }
.param { color: var(--accent-orange); }
.property { color: var(--accent-cyan); }
.class-name { color: var(--accent-cyan); font-weight: 600; }
.comment { color: var(--text-dim); font-style: italic; }
.code-comment { color: var(--text-dim); font-style: italic; margin-bottom: 16px; }
.hashtag { color: var(--accent-cyan); }
.prompt { color: var(--accent-green); font-weight: 700; margin-right: 6px; }
.bracket { color: var(--accent-cyan); }
.heart { color: var(--accent-pink); }

/* ============================================================
   NAVBAR
   ============================================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 40px;
    background: transparent;
    transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
}

.navbar.scrolled {
    background: rgba(10, 10, 18, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.nav-logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-green);
    letter-spacing: 2px;
}

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

.nav-link {
    color: var(--text-secondary);
    font-size: 0.85rem;
    padding: 8px 14px;
    border-radius: 6px;
    transition: all var(--transition-smooth);
}

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

/* Language Toggle */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--bg-terminal);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent-cyan);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
    margin-right: 12px;
}

.lang-toggle:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 15px var(--glow-cyan);
}

.lang-toggle .lang-label {
    position: relative;
    z-index: 1;
    font-weight: 600;
    letter-spacing: 1px;
    transition: color var(--transition-smooth);
}

.lang-toggle .lang-slider {
    position: absolute;
    left: 4px;
    top: 4px;
    width: 28px;
    height: calc(100% - 8px);
    background: var(--accent-cyan);
    border-radius: 14px;
    opacity: 0.15;
    transition: transform var(--transition-smooth);
}

.lang-toggle.zh-active {
    color: var(--accent-green);
    border-color: var(--accent-green);
}

.lang-toggle.zh-active:hover {
    box-shadow: 0 0 15px var(--glow-green);
}

.lang-toggle.zh-active .lang-slider {
    background: var(--accent-green);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-smooth);
}

.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-section {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-video-container {
    position: absolute;
    inset: 0;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(10, 10, 18, 0.5) 0%,
        rgba(10, 10, 18, 0.7) 50%,
        rgba(10, 10, 18, 0.95) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 20px;
    animation: fadeInUp 1s ease 0.3s both;
}

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

.hero-comment {
    color: var(--text-dim);
    font-style: italic;
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.hero-title {
    font-size: 2.4rem;
    font-weight: 400;
    line-height: 1.4;
    margin-bottom: 12px;
}

.hero-subtitle {
    font-size: 1.1rem;
    margin-bottom: 40px;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border: 1px solid var(--accent-green);
    border-radius: 8px;
    color: var(--accent-green);
    font-family: var(--font-mono);
    font-size: 1rem;
    transition: all var(--transition-smooth);
    background: transparent;
}

.hero-cta:hover {
    background: var(--glow-green);
    color: var(--accent-green);
    box-shadow: 0 0 30px var(--glow-green);
    transform: translateY(-2px);
}

.cta-arrow {
    font-size: 1.2rem;
    animation: bounce-arrow 2s ease-in-out infinite;
}

@keyframes bounce-arrow {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(5px); }
}

/* ============================================================
   SECTIONS COMMON
   ============================================================ */

.section {
    padding: 100px 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--accent-cyan);
    margin-bottom: 40px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================================
   ABOUT SECTION
   ============================================================ */

.about-content {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.about-photo {
    flex-shrink: 0;
}

.profile-img {
    width: 180px;
    height: 180px;
    border-radius: 12px;
    border: 2px solid var(--accent-cyan);
    object-fit: cover;
    box-shadow: 0 0 30px var(--glow-cyan);
    transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.profile-img:hover {
    transform: scale(1.05);
    box-shadow: 0 0 50px var(--glow-cyan);
}

.about-text {
    flex: 1;
}

.code-block {
    line-height: 2;
    font-size: 0.95rem;
    overflow-wrap: break-word;
    word-break: break-word;
}

.indent-1 { padding-left: 2em; }
.indent-2 { padding-left: 4em; }

/* ============================================================
   SKILLS SECTION
   ============================================================ */

.windows-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.small-window .window-body {
    padding: 20px 24px;
}

.skill-item {
    margin-bottom: 16px;
}

.skill-name {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.skill-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-primary);
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.skill-fill {
    height: 100%;
    width: 0;
    border-radius: 4px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-green));
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 10px var(--glow-green);
}

.tool-list {
    list-style: none;
}

.tool-list li {
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--text-primary);
    border-bottom: 1px solid rgba(42, 42, 74, 0.5);
    transition: color var(--transition-smooth), padding-left var(--transition-smooth);
}

.tool-list li:last-child {
    border-bottom: none;
}

.tool-list li:hover {
    color: var(--accent-green);
    padding-left: 6px;
}

/* ============================================================
   PROJECTS SECTION
   ============================================================ */

/* Filter Bar */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.filter-label {
    color: var(--accent-green);
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    scrollbar-width: none;
}

.filter-buttons::-webkit-scrollbar {
    display: none;
}

.filter-btn {
    padding: 6px 16px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all var(--transition-smooth);
}

.filter-btn:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    background: rgba(0, 212, 255, 0.05);
}

.filter-btn.active {
    border-color: var(--accent-green);
    color: var(--accent-green);
    background: rgba(0, 255, 136, 0.1);
    box-shadow: 0 0 12px rgba(0, 255, 136, 0.1);
}

/* Card filter animation */
.project-window {
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.project-window.filter-hidden {
    opacity: 0;
    transform: scale(0.9);
    pointer-events: none;
    position: absolute;
    visibility: hidden;
}

.project-window.filter-visible {
    opacity: 1;
    transform: scale(1);
}

/* No results message */
.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-dim);
    font-size: 0.95rem;
}

.project-window .window-body {
    padding: 24px;
}

/* Preview Box */
.preview-box {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.preview-media {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease, filter 0.4s ease;
}

.preview-box:hover .preview-media {
    transform: scale(1.05);
    filter: brightness(0.7);
}

.preview-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: opacity var(--transition-smooth);
}

.preview-box:hover .preview-overlay {
    opacity: 1;
}

.preview-play {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 255, 136, 0.2);
    border: 2px solid var(--accent-green);
    border-radius: 50%;
    color: var(--accent-green);
    font-size: 1.2rem;
    backdrop-filter: blur(4px);
}

.project-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent-green);
    margin-bottom: 12px;
}

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

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

.tag {
    padding: 4px 12px;
    background: rgba(180, 77, 255, 0.12);
    border: 1px solid rgba(180, 77, 255, 0.3);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--accent-purple);
    transition: all var(--transition-smooth);
}

.tag:hover {
    background: rgba(180, 77, 255, 0.25);
    border-color: var(--accent-purple);
}

.project-link {
    display: inline-block;
    font-size: 0.85rem;
    color: var(--accent-cyan);
    transition: all var(--transition-smooth);
}

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

/* ============================================================
   WORK DETAIL OVERLAY
   ============================================================ */

.work-detail-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: var(--bg-primary);
    overflow-y: auto;
    animation: detailSlideIn 0.5s ease both;
}

.work-detail-overlay.hidden {
    display: none !important;
}

.work-detail-overlay.closing {
    animation: detailSlideOut 0.4s ease both;
}

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

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

.work-detail-nav {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 16px 40px;
    background: rgba(10, 10, 18, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: transparent;
    border: 1px solid var(--accent-cyan);
    border-radius: 6px;
    color: var(--accent-cyan);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-smooth);
}

.back-btn:hover {
    background: var(--glow-cyan);
    box-shadow: 0 0 20px var(--glow-cyan);
}

.work-detail-filename {
    color: var(--text-dim);
    font-size: 0.8rem;
}

.work-detail-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 32px;
    align-items: start;
}

.detail-media-window,
.detail-info-window {
    opacity: 1;
    transform: none;
}

.detail-media-body {
    padding: 0 !important;
    line-height: 0;
}

.detail-media-body video,
.detail-media-body img {
    width: 100%;
    display: block;
    max-height: 70vh;
    object-fit: contain;
    background: #000;
}

.detail-media-body video {
    cursor: pointer;
}

.detail-title {
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--accent-green);
    margin-bottom: 24px;
}

.detail-meta {
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.detail-meta .code-block {
    line-height: 2.2;
    font-size: 0.9rem;
}

.detail-description {
    margin-bottom: 24px;
}

.detail-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.8;
    margin-top: 8px;
}

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

/* ============================================================
   CONTACT SECTION
   ============================================================ */

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    transition: all var(--transition-smooth);
}

.contact-item:hover {
    border-color: var(--accent-cyan);
    background: rgba(0, 212, 255, 0.05);
}

.contact-icon {
    font-size: 1.6rem;
}

.contact-label {
    font-size: 0.75rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 2px;
}

.contact-value {
    font-size: 0.9rem;
    color: var(--accent-cyan);
}

.contact-value:hover {
    color: var(--accent-green);
}

/* ============================================================
   FOOTER
   ============================================================ */

.footer {
    text-align: center;
    padding: 40px 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-dim);
    font-size: 0.85rem;
}

.footer-note {
    margin-top: 8px;
    font-size: 0.8rem;
}

/* ============================================================
   FADE IN ANIMATION
   ============================================================ */

.fade-in {
    animation: fadeIn 0.8s ease both;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ============================================================
   SCROLLBAR
   ============================================================ */

::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-cyan);
}

/* ============================================================
   BACKGROUND GRID PATTERN (subtle)
   ============================================================ */

body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    background-image:
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(10, 10, 18, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        padding: 40px;
        gap: 4px;
        transition: right 0.4s ease;
        border-left: 1px solid var(--border-color);
        z-index: 999;
    }

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

    .hamburger {
        display: flex;
        z-index: 1000;
    }

    .lang-toggle {
        margin-right: 8px;
        padding: 5px 12px;
        font-size: 0.75rem;
    }

    .navbar {
        padding: 14px 20px;
    }

    .section {
        padding: 60px 16px;
    }

    .hero-section {
        padding-top: 60px;
    }

    .hero-title {
        font-size: 1.3rem;
        word-break: break-word;
    }

    .hero-subtitle {
        font-size: 0.8rem;
        word-break: break-word;
    }

    .hero-cta {
        padding: 12px 24px;
        font-size: 0.9rem;
    }

    .about-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .code-block {
        text-align: left;
    }

    .about-text {
        overflow-x: auto;
    }

    .profile-img {
        width: 140px;
        height: 140px;
    }

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

    .section-title {
        font-size: 1.4rem;
    }

    .indent-1 { padding-left: 1em; }
    .indent-2 { padding-left: 2em; }

    .filter-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .filter-buttons {
        width: 100%;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 6px;
        -webkit-overflow-scrolling: touch;
    }

    .filter-btn {
        padding: 5px 12px;
        font-size: 0.72rem;
        white-space: nowrap;
        flex-shrink: 0;
    }

    .work-detail-nav {
        padding: 12px 16px;
        gap: 12px;
    }

    .back-btn {
        padding: 6px 14px;
        font-size: 0.8rem;
    }

    .work-detail-content {
        grid-template-columns: 1fr;
        padding: 20px 16px;
        gap: 20px;
    }

    .detail-title {
        font-size: 1.2rem;
    }

    .detail-meta .code-block {
        font-size: 0.78rem;
        overflow-x: auto;
    }

    .detail-meta {
        overflow-x: auto;
    }

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

    .contact-item {
        padding: 12px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1rem;
    }

    .hero-subtitle {
        font-size: 0.72rem;
    }

    .hero-comment {
        font-size: 0.75rem;
    }

    .hero-cta {
        padding: 10px 20px;
        font-size: 0.85rem;
    }

    .intro-terminal {
        width: 95vw;
    }

    .terminal-body,
    .window-body {
        padding: 14px;
        font-size: 0.82rem;
    }

    .code-block {
        font-size: 0.78rem;
        line-height: 1.9;
    }

    .indent-1 { padding-left: 0.8em; }
    .indent-2 { padding-left: 1.6em; }

    .section-title {
        font-size: 1.2rem;
    }

    .project-name {
        font-size: 1rem;
    }

    .project-desc {
        font-size: 0.82rem;
    }

    .nav-logo {
        font-size: 1.1rem;
    }

    .skip-hint {
        font-size: 0.7rem;
    }

    .footer {
        font-size: 0.75rem;
        padding: 30px 16px;
    }

    .footer-note {
        font-size: 0.7rem;
    }
}

@media (max-width: 360px) {
    .hero-title {
        font-size: 0.85rem;
    }

    .hero-subtitle {
        font-size: 0.65rem;
    }

    .section {
        padding: 50px 12px;
    }

    .terminal-body,
    .window-body {
        padding: 12px;
        font-size: 0.75rem;
    }

    .indent-2 { padding-left: 1.2em; }
}