/* ==================== CSS Variables ==================== */
:root {
    --bg-primary: #0A0E1A;
    --bg-secondary: #0F1524;
    --bg-tertiary: #131A2E;
    --bg-card: rgba(19, 28, 46, 0.6);
    --border-color: rgba(0, 229, 255, 0.15);
    --border-glow: rgba(0, 229, 255, 0.4);
    --text-primary: #E8EEF7;
    --text-secondary: #A0AEC0;
    --text-muted: #6B7785;
    --accent-cyan: #00E5FF;
    --accent-blue: #2979FF;
    --accent-purple: #8B5CF6;
    --accent-green: #52C41A;
    --accent-orange: #FA8C16;
    --accent-red: #F5222D;
    --gradient-primary: linear-gradient(135deg, #00E5FF 0%, #2979FF 100%);
    --gradient-secondary: linear-gradient(135deg, #2979FF 0%, #8B5CF6 100%);
    --gradient-glow: linear-gradient(135deg, rgba(0, 229, 255, 0.2) 0%, rgba(41, 121, 255, 0.2) 100%);
    --shadow-glow: 0 0 20px rgba(0, 229, 255, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
    --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --font-mono: "JetBrains Mono", "Fira Code", Consolas, "Courier New", monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

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

ul {
    list-style: none;
}

/* ==================== Background Effects ==================== */
.grid-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 229, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 229, 255, 0.04) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

.glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    pointer-events: none;
    z-index: 0;
}

.glow-1 {
    width: 500px;
    height: 500px;
    background: var(--accent-cyan);
    top: -200px;
    right: -100px;
    animation: float1 20s ease-in-out infinite;
}

.glow-2 {
    width: 600px;
    height: 600px;
    background: var(--accent-blue);
    bottom: -300px;
    left: -200px;
    animation: float2 25s ease-in-out infinite;
}

.glow-3 {
    width: 400px;
    height: 400px;
    background: var(--accent-purple);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.2;
    animation: float3 30s ease-in-out infinite;
}

@keyframes float1 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-50px, 50px); }
}

@keyframes float2 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(100px, -50px); }
}

@keyframes float3 {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.2); }
}

/* ==================== Container ==================== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* ==================== Navbar ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 14, 26, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-name {
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 1px;
}

.logo-sub {
    font-size: 11px;
    color: var(--text-muted);
}

.nav-menu {
    display: flex;
    gap: 32px;
}

.nav-menu a {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    position: relative;
    padding: 4px 0;
    transition: color 0.2s ease;
}

.nav-menu a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-green);
    box-shadow: 0 0 8px var(--accent-green);
    animation: pulse 2s ease-in-out infinite;
}

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

/* ==================== Hero ==================== */
.hero {
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 64px;
    align-items: center;
}

.hero-content {
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--gradient-glow);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-cyan);
    box-shadow: 0 0 8px var(--accent-cyan);
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.title-line {
    display: block;
}

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

.hero-desc {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 580px;
}

.hero-desc strong {
    color: var(--text-primary);
    font-weight: 600;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.2s ease;
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 20px rgba(0, 229, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(0, 229, 255, 0.5);
    color: #fff;
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-glow);
}

.btn-secondary:hover {
    background: rgba(0, 229, 255, 0.1);
    color: var(--accent-cyan);
}

.hero-meta {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.meta-num {
    font-family: var(--font-mono);
    font-size: 24px;
    font-weight: 700;
    color: var(--accent-cyan);
}

.meta-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.meta-divider {
    width: 1px;
    height: 32px;
    background: var(--border-color);
}

/* ==================== Hero Visual (Window Mock) ==================== */
.hero-visual {
    position: relative;
    z-index: 2;
}

.window-mock {
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 12px;
    box-shadow: var(--shadow-card), 0 0 40px rgba(0, 229, 255, 0.15);
    overflow: hidden;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
    transition: transform 0.5s ease;
}

.window-mock:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.window-header {
    background: rgba(15, 21, 36, 0.9);
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 16px;
}

.window-dots {
    display: flex;
    gap: 6px;
}

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

.dot-r { background: #FF5F57; }
.dot-y { background: #FEBC2E; }
.dot-g { background: #28C840; }

.window-title {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    flex: 1;
    text-align: center;
}

.window-body {
    padding: 16px;
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 16px;
    min-height: 320px;
}

.mock-sidebar {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    padding: 12px 8px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mock-nav-item {
    height: 32px;
    background: rgba(0, 229, 255, 0.08);
    border-radius: 6px;
    border-left: 2px solid transparent;
}

.mock-nav-item.active {
    background: rgba(0, 229, 255, 0.2);
    border-left-color: var(--accent-cyan);
}

.mock-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.mock-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.mock-card {
    background: rgba(0, 229, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    text-align: center;
}

.mock-num {
    font-family: var(--font-mono);
    font-size: 24px;
    font-weight: 700;
    color: var(--accent-cyan);
    line-height: 1.2;
}

.mock-lbl {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

.mock-chart {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 140px;
    flex: 1;
}

.bar {
    flex: 1;
    height: var(--h);
    background: var(--gradient-primary);
    border-radius: 4px 4px 0 0;
    animation: barGrow 1.5s ease-out;
    transform-origin: bottom;
}

@keyframes barGrow {
    from { transform: scaleY(0); }
    to { transform: scaleY(1); }
}

.floating-tag {
    position: absolute;
    padding: 8px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-card);
    animation: floatTag 6s ease-in-out infinite;
    white-space: nowrap;
}

.tag-1 {
    top: 20px;
    left: -20px;
    animation-delay: 0s;
}

.tag-2 {
    top: 50%;
    right: -20px;
    animation-delay: 2s;
}

.tag-3 {
    bottom: 20px;
    left: 30px;
    animation-delay: 4s;
}

@keyframes floatTag {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* ==================== Sections ==================== */
.section {
    padding: 100px 0;
    position: relative;
}

.section-alt {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-cyan);
    letter-spacing: 2px;
    padding: 4px 12px;
    background: var(--gradient-glow);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.section-desc {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ==================== Features Grid ==================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 28px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.feature-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 229, 255, 0.15);
}

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

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: var(--gradient-glow);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-cyan);
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    color: var(--accent-cyan);
    box-shadow: var(--shadow-glow);
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.feature-tags span {
    font-size: 11px;
    padding: 3px 8px;
    background: rgba(0, 229, 255, 0.08);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--accent-cyan);
    font-family: var(--font-mono);
}

/* ==================== Modules Grid ==================== */
.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.module-category {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.module-category:hover {
    border-color: var(--border-glow);
    transform: translateY(-2px);
}

.module-cat-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.module-cat-num {
    font-family: var(--font-mono);
    font-size: 20px;
    font-weight: 700;
    color: var(--accent-cyan);
    background: var(--gradient-glow);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 4px 10px;
    line-height: 1;
}

.module-cat-header h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
}

.module-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.module-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
    padding: 6px 8px;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.module-list li:hover {
    background: rgba(0, 229, 255, 0.05);
    color: var(--text-primary);
}

.mod-icon {
    width: 24px;
    text-align: center;
    font-size: 16px;
}

/* ==================== Tech Grid ==================== */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 48px;
}

.tech-column {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.tech-layer {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    flex: 1;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.tech-layer:hover {
    border-color: var(--border-glow);
    transform: translateY(-2px);
}

.tech-layer-name {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent-cyan);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px dashed var(--border-color);
}

.tech-items {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tech-item {
    padding-left: 12px;
    border-left: 2px solid var(--border-color);
}

.tech-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.tech-desc {
    font-size: 13px;
    color: var(--text-muted);
}

.arch-flow {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.arch-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.arch-row:last-child {
    margin-bottom: 0;
}

.arch-box {
    padding: 12px 20px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
    min-width: 140px;
    text-align: center;
    transition: all 0.2s ease;
}

.arch-box:hover {
    border-color: var(--border-glow);
    color: var(--accent-cyan);
    transform: translateY(-2px);
}

.arch-arrow {
    color: var(--accent-cyan);
    font-size: 20px;
    font-weight: 300;
}

/* ==================== KPI Grid ==================== */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.kpi-card::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 80px;
    height: 80px;
    background: var(--gradient-glow);
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.5;
}

.kpi-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-2px);
}

.kpi-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
    position: relative;
}

.kpi-value {
    font-family: var(--font-mono);
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 8px;
    position: relative;
}

.kpi-trend {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    position: relative;
}

.kpi-trend.up {
    color: var(--accent-green);
}

.kpi-trend.down {
    color: var(--accent-orange);
}

/* ==================== About ==================== */
.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    align-items: start;
}

.about-text h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.about-text h3:not(:first-child) {
    margin-top: 32px;
}

.about-text p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 12px;
}

.about-text strong {
    color: var(--text-primary);
    font-weight: 600;
}

.commit-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 16px;
}

.commit-list li {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    transition: all 0.2s ease;
}

.commit-list li:hover {
    border-color: var(--border-glow);
    transform: translateX(4px);
}

.commit-icon {
    font-size: 24px;
    flex-shrink: 0;
    line-height: 1;
}

.commit-list strong {
    color: var(--accent-cyan);
    display: block;
    margin-bottom: 4px;
}

.commit-list div {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.about-info-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 16px;
    padding: 32px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-card);
    position: sticky;
    top: 100px;
}

.info-card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.info-logo {
    width: 56px;
    height: 56px;
    background: var(--gradient-glow);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.info-company {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
}

.info-sub {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
    line-height: 1.3;
}

.info-rows {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding-bottom: 14px;
    border-bottom: 1px dashed var(--border-color);
}

.info-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.info-key {
    font-size: 13px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.info-val {
    font-size: 13px;
    color: var(--text-primary);
    text-align: right;
    font-weight: 500;
}

.icp-link {
    font-family: var(--font-mono);
    color: var(--accent-cyan);
}

.icp-link:hover {
    text-decoration: underline;
}

/* ==================== Audience ==================== */
.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
}

.audience-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 28px;
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.audience-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 229, 255, 0.15);
}

.audience-emoji {
    font-size: 48px;
    margin-bottom: 16px;
    display: block;
}

.audience-card h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.audience-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==================== Footer ==================== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 64px 0 24px;
    position: relative;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.footer-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 320px;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col li {
    font-size: 13px;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.footer-col a:hover {
    color: var(--accent-cyan);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-copy {
    font-size: 13px;
    color: var(--text-muted);
}

.footer-icp {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.footer-shield {
    font-size: 14px;
}

.footer-icp a {
    font-family: var(--font-mono);
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.footer-icp a:hover {
    color: var(--accent-cyan);
}

/* ==================== Responsive ==================== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 44px;
    }

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

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

    .about-info-card {
        position: static;
    }

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero-title {
        font-size: 36px;
    }

    .section-title {
        font-size: 32px;
    }

    .hero-meta {
        gap: 16px;
    }

    .features-grid,
    .modules-grid {
        grid-template-columns: 1fr;
    }

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

    .arch-row {
        flex-direction: column;
    }

    .arch-arrow {
        transform: rotate(90deg);
    }
}

/* ==================== Scroll Animation ==================== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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