/* ============================================
   gzcangshu.com - Main Stylesheet
   Tesla-style aesthetics with rich animations
   ============================================ */

/* CSS Variables - Tesla Inspired */
:root {
    --color-bg-primary: #000000;
    --color-bg-secondary: #0a0a0a;
    --color-bg-tertiary: #111111;
    --color-bg-card: #171717;
    --color-bg-card-hover: #1f1f1f;
    --color-surface: rgba(255, 255, 255, 0.04);
    --color-surface-hover: rgba(255, 255, 255, 0.08);
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.16);
    --color-text-primary: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.78);
    --color-text-tertiary: rgba(255, 255, 255, 0.52);
    --color-text-muted: rgba(255, 255, 255, 0.32);
    --color-accent: #e82127;
    --color-accent-hover: #ff3b3b;
    --color-accent-glow: rgba(232, 33, 39, 0.45);
    --color-blue: #3e6ae1;
    --color-blue-hover: #5b85ff;
    --color-cyan: #00d4ff;
    --color-success: #00d68f;
    --color-warning: #ffaa00;

    --gradient-primary: linear-gradient(135deg, #e82127 0%, #ff6b35 100%);
    --gradient-blue: linear-gradient(135deg, #3e6ae1 0%, #00d4ff 100%);
    --gradient-purple: linear-gradient(135deg, #6e3ee1 0%, #e83ee1 100%);
    --gradient-dark: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.85) 100%);
    --gradient-glow: radial-gradient(circle at 50% 50%, rgba(232,33,39,0.18) 0%, rgba(0,0,0,0) 70%);

    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Space Grotesk', 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

    --space-xxs: 0.25rem;
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4.5rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 18px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 60px rgba(232, 33, 39, 0.35);
    --shadow-blue: 0 0 60px rgba(62, 106, 225, 0.35);

    --transition-fast: 160ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 280ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 480ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 600ms cubic-bezier(0.34, 1.56, 0.64, 1);

    --container-max: 1400px;
    --container-narrow: 1080px;
    --container-wide: 1600px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
}

h1 {
    font-size: clamp(2.5rem, 6vw, 5.5rem);
    font-weight: 700;
    letter-spacing: -0.04em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3.75rem);
    font-weight: 600;
    letter-spacing: -0.03em;
}

h3 {
    font-size: clamp(1.5rem, 2.5vw, 2.25rem);
    font-weight: 600;
}

h4 {
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    font-weight: 500;
}

p {
    color: var(--color-text-secondary);
    font-size: 1rem;
    line-height: 1.7;
}

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

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

ul, ol {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.container-narrow {
    width: 100%;
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.container-wide {
    width: 100%;
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* Section */
.section {
    padding: var(--space-5xl) 0;
    position: relative;
}

.section-sm {
    padding: var(--space-4xl) 0;
}

.section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--color-accent);
    margin-bottom: var(--space-lg);
    padding: var(--space-xs) var(--space-md);
    background: rgba(232, 33, 39, 0.1);
    border: 1px solid rgba(232, 33, 39, 0.3);
    border-radius: var(--radius-full);
}

.section-eyebrow::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.section-title {
    margin-bottom: var(--space-lg);
}

.section-subtitle {
    max-width: 720px;
    font-size: 1.125rem;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-3xl);
    line-height: 1.6;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.875rem 2rem;
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    user-select: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-text-primary);
    color: var(--color-bg-primary);
    box-shadow: 0 4px 16px rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
    background: #f5f5f5;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.25);
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

.btn-primary:hover::before {
    transform: translateX(100%);
}

.btn-accent {
    background: var(--color-accent);
    color: var(--color-text-primary);
    box-shadow: 0 4px 16px var(--color-accent-glow);
}

.btn-accent:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px var(--color-accent-glow);
}

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

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

.btn-ghost {
    background: transparent;
    color: var(--color-text-primary);
    padding: 0.625rem 1.25rem;
}

.btn-ghost:hover {
    background: var(--color-surface);
}

.btn-arrow {
    transition: transform var(--transition-base);
}

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

/* Header & Navigation */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}

.site-header.scrolled {
    background: rgba(0, 0, 0, 0.85);
    border-bottom-color: var(--color-border);
    padding: 0.625rem 0;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2xl);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
}

.nav-brand .logo-mark {
    width: 36px;
    height: 36px;
    transition: transform var(--transition-base);
}

.nav-brand:hover .logo-mark {
    transform: rotate(15deg);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    font-size: 0.9375rem;
    font-weight: 400;
    color: var(--color-text-tertiary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 2px;
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.lang-switch {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    background: transparent;
    border: 1px solid var(--color-border);
}

.lang-switch:hover {
    color: var(--color-text-primary);
    border-color: var(--color-border-hover);
}

.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.mobile-menu-toggle:hover {
    background: var(--color-surface);
}

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    padding: 9rem 0 5rem;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--color-bg-primary);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    opacity: 0.6;
    pointer-events: none;
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(232, 33, 39, 0.18) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(62, 106, 225, 0.15) 0%, transparent 50%);
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-grid-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1080px;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
    padding: 0.5rem 1rem 0.5rem 0.5rem;
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    letter-spacing: 0.06em;
    color: var(--color-text-secondary);
}

.hero-eyebrow-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0.25rem 0.75rem;
    background: var(--color-accent);
    border-radius: var(--radius-full);
    color: white;
    font-size: 0.75rem;
    font-weight: 500;
}

.hero-eyebrow-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: white;
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}

.hero-title {
    margin-bottom: var(--space-xl);
    line-height: 0.95;
}

.hero-title .gradient-text {
    background: linear-gradient(135deg, #ffffff 0%, #e82127 50%, #ff6b35 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% 200%;
    animation: gradient-shift 8s ease infinite;
}

.hero-subtitle {
    max-width: 720px;
    font-size: clamp(1.0625rem, 1.6vw, 1.25rem);
    color: var(--color-text-tertiary);
    line-height: 1.6;
    margin-bottom: var(--space-2xl);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-2xl);
    padding-top: var(--space-2xl);
    border-top: 1px solid var(--color-border);
    max-width: 720px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-value {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    color: var(--color-text-primary);
    line-height: 1;
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-muted);
}

/* Floating Hero Visual */
.hero-visual {
    position: absolute;
    right: -5%;
    top: 50%;
    transform: translateY(-50%);
    width: 50%;
    max-width: 700px;
    z-index: 1;
    opacity: 0.85;
    animation: float 6s ease-in-out infinite;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    z-index: 2;
    animation: float-vertical 3s ease-in-out infinite;
}

.hero-scroll-indicator svg {
    width: 24px;
    height: 24px;
}

/* Cards */
.card {
    position: relative;
    padding: var(--space-2xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    overflow: hidden;
}

.card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    margin-bottom: var(--space-lg);
    background: linear-gradient(135deg, rgba(232, 33, 39, 0.15), rgba(232, 33, 39, 0.05));
    border: 1px solid rgba(232, 33, 39, 0.2);
    border-radius: var(--radius-lg);
    color: var(--color-accent);
}

.card-icon svg {
    width: 28px;
    height: 28px;
}

.card-title {
    font-size: 1.375rem;
    margin-bottom: var(--space-md);
    font-weight: 600;
}

.card-description {
    color: var(--color-text-tertiary);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    margin-top: var(--space-lg);
    color: var(--color-accent);
    font-size: 0.875rem;
    font-weight: 500;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    transition: gap var(--transition-base);
}

.card-link:hover {
    gap: var(--space-sm);
}

/* Grid layouts */
.grid {
    display: grid;
    gap: var(--space-xl);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Bento Grid */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-auto-rows: minmax(180px, auto);
    gap: var(--space-md);
}

.bento-item {
    padding: var(--space-2xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    position: relative;
    transition: all var(--transition-base);
}

.bento-item:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
}

.bento-item.span-2 { grid-column: span 2; }
.bento-item.span-3 { grid-column: span 3; }
.bento-item.span-4 { grid-column: span 4; }
.bento-item.span-6 { grid-column: span 6; }
.bento-item.row-2 { grid-row: span 2; }

/* Footer */
.site-footer {
    position: relative;
    padding: var(--space-4xl) 0 var(--space-xl);
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    overflow: hidden;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.footer-brand .brand-name {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.footer-brand p {
    color: var(--color-text-tertiary);
    font-size: 0.9375rem;
    max-width: 320px;
}

.footer-social {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-tertiary);
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
    transform: translateY(-2px);
}

.footer-social svg {
    width: 18px;
    height: 18px;
}

.footer-col h4 {
    font-size: 0.8125rem;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-col a {
    color: var(--color-text-tertiary);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
    gap: var(--space-xl);
    flex-wrap: wrap;
}

.footer-copyright {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.footer-legal {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.footer-legal a {
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

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

/* Page Header */
.page-header {
    padding: 10rem 0 4rem;
    position: relative;
    overflow: hidden;
    background: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
}

.page-header-bg {
    position: absolute;
    inset: 0;
    opacity: 0.4;
    pointer-events: none;
}

.page-header-content {
    position: relative;
    z-index: 2;
    max-width: 100%;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.breadcrumb a {
    color: var(--color-text-tertiary);
    transition: color var(--transition-fast);
}

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

.breadcrumb-separator {
    color: var(--color-text-muted);
}

.page-title {
    margin-bottom: var(--space-lg);
    line-height: 1;
}

.page-subtitle {
    max-width: 720px;
    font-size: 1.125rem;
    color: var(--color-text-tertiary);
    line-height: 1.7;
}

/* Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.9s cubic-bezier(0.4, 0, 0.2, 1), transform 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

.reveal-fade {
    opacity: 0;
    transition: opacity 1.2s ease;
}

.reveal-fade.is-visible {
    opacity: 1;
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.92);
    transition: opacity 1s ease, transform 1s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.reveal-scale.is-visible {
    opacity: 1;
    transform: scale(1);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.9s ease, transform 0.9s ease;
}

.reveal-left.is-visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.9s ease, transform 0.9s ease;
}

.reveal-right.is-visible {
    opacity: 1;
    transform: translateX(0);
}

/* Utility classes */
.text-gradient {
    background: linear-gradient(135deg, #ffffff 0%, #b0b0b0 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.text-mono {
    font-family: var(--font-mono);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }
.mb-5 { margin-bottom: var(--space-2xl); }

.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }
.mt-5 { margin-top: var(--space-2xl); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: var(--space-sm); }
.gap-2 { gap: var(--space-md); }
.gap-3 { gap: var(--space-lg); }
.gap-4 { gap: var(--space-xl); }

.relative { position: relative; }
.absolute { position: absolute; }

/* Tag/Badge */
.tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0.25rem 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-tertiary);
}

.tag-accent {
    background: rgba(232, 33, 39, 0.1);
    border-color: rgba(232, 33, 39, 0.3);
    color: var(--color-accent);
}

.tag-blue {
    background: rgba(62, 106, 225, 0.1);
    border-color: rgba(62, 106, 225, 0.3);
    color: var(--color-blue);
}

.tag-cyan {
    background: rgba(0, 212, 255, 0.1);
    border-color: rgba(0, 212, 255, 0.3);
    color: var(--color-cyan);
}

/* Marquee */
.marquee {
    overflow: hidden;
    position: relative;
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
}

.marquee-track {
    display: flex;
    gap: var(--space-3xl);
    animation: marquee 30s linear infinite;
    width: max-content;
}

.marquee-item {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-mono);
    font-size: 1.125rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-tertiary);
    flex-shrink: 0;
}

.marquee-item svg {
    width: 24px;
    height: 24px;
    color: var(--color-accent);
}

/* Code/terminal styling */
.code-block {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    overflow-x: auto;
    line-height: 1.6;
}

.code-block .code-keyword { color: #ff6b6b; }
.code-block .code-string { color: #51cf66; }
.code-block .code-comment { color: var(--color-text-muted); }
.code-block .code-function { color: var(--color-cyan); }