/* Bảng màu nạp từ assets/css/tokens.css — xem <link> trong mỗi file HTML.
   Các biến dưới đây là lớp tương thích cho CSS cũ; code mới dùng thẳng --c-*. */

:root {
    /* Light Mode — ánh xạ sang token brand.
       --primary dùng cho CHỮ ở phần lớn rule của file này, nên phải trỏ vào
       --c-brand-strong (đạt AA ở cả 2 mode), không phải --c-brand. */
    --primary: var(--c-brand-strong);
    --primary-dim: var(--c-brand-dim);
    --text-main: var(--c-text);
    --text-light: var(--c-text-soft);
    --text-muted: var(--c-text-muted);
    --card-bg: var(--c-surface);
    --body-bg: var(--c-page);
    --hero-gradient-start: var(--sky-100);
    --hero-gradient-mid: var(--sky-200);
    --hero-gradient-end: rgba(136, 201, 234, 0.45);
    --feature-zone-bg: var(--c-surface-alt);
    --wave-fill-1: var(--sky-100);
    --wave-fill-2: var(--c-surface-alt);
    --bar-track-bg: var(--sky-200);
    --border-color: var(--c-border);
    --border-secondary: var(--c-border-soft);
    --shadow-color: rgba(136, 201, 234, 0.25);
    --feature-icon-bg: var(--sky-100);
    --badge-bg: var(--c-surface);
    --badge-border: var(--sky-200);
    --btn-secondary-bg: var(--c-surface);
    --blob-1: var(--sakura-100);
    --blob-2: var(--sky-100);
    --tag-supported-bg: var(--sky-100);
    --tag-supported-text: var(--c-brand-strong);
    --tag-limited-bg: var(--sakura-100);
    --tag-limited-text: var(--c-accent-strong);
    --radius-l: var(--r-xl);
    --radius-m: 20px;
    --max-width: var(--max-w);
}

/* Dark Mode — chỉ override cái nào không tự đổi theo --c-* */
[data-theme="dark"] {
    --hero-gradient-start: #101c26;
    --hero-gradient-mid: #16232f;
    --hero-gradient-end: rgba(16, 28, 38, 0.95);
    --wave-fill-1: #101c26;
    --wave-fill-2: var(--c-page);
    --bar-track-bg: #22333f;
    --shadow-color: rgba(0, 0, 0, 0.4);
    --feature-icon-bg: var(--c-brand-soft);
    --badge-border: var(--c-border);
    --blob-1: rgba(255, 154, 175, 0.1);
    --blob-2: rgba(136, 201, 234, 0.1);
    --tag-supported-bg: var(--c-brand-soft);
    --tag-supported-text: var(--c-brand);
    --tag-limited-bg: var(--c-accent-soft);
    --tag-limited-text: var(--c-accent);
}

/* Language Visibility Logic */
[data-lang="en"] {
    display: none;
}

[data-lang="vi"] {
    display: block;
}

html[lang="en"] [data-lang="en"] {
    display: block;
}

html[lang="en"] [data-lang="vi"] {
    display: none;
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    bottom: 24px;
    left: 24px;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    box-shadow: 0 4px 20px var(--shadow-color);
    cursor: pointer;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 28px var(--shadow-color);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.theme-toggle svg {
    width: 24px;
    height: 24px;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.theme-toggle .sun-icon {
    color: #FFB300;
    position: absolute;
    opacity: 0;
    transform: rotate(-90deg) scale(0);
}

.theme-toggle .moon-icon {
    color: #64B5F6;
    position: absolute;
    opacity: 1;
    transform: rotate(0) scale(1);
}

[data-theme="dark"] .theme-toggle .sun-icon {
    opacity: 1;
    transform: rotate(0) scale(1);
}

[data-theme="dark"] .theme-toggle .moon-icon {
    opacity: 0;
    transform: rotate(90deg) scale(0);
}

/* Smooth theme transition for all elements */
body,
.card-bg,
.box-card,
.feature-card,
nav,
.hero-badge,
.btn,
footer,
.theme-toggle {
    transition: background-color 0.4s cubic-bezier(0.23, 1, 0.32, 1), color 0.4s cubic-bezier(0.23, 1, 0.32, 1), border-color 0.4s cubic-bezier(0.23, 1, 0.32, 1), box-shadow 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

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

/* Scroll To Top Button */
.scroll-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    box-shadow: 0 4px 20px var(--shadow-color);
    cursor: pointer;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.3s, color 0.3s, border-color 0.3s;
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    color: var(--primary);
}

.scroll-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

.scroll-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 28px var(--shadow-color);
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.scroll-top:active {
    transform: scale(0.95);
}

.scroll-top svg {
    width: 24px;
    height: 24px;
    transition: inherit;
}

html {
    /* overflow-x: hidden; */
    width: 100%;
    /* scroll-behavior: smooth; REMOVED to prevent conflict with JS smooth scroll */
    scroll-padding-top: 80px;
}

html {
    background-color: var(--body-bg);
}

body {
    background-color: var(--body-bg);
    color: var(--text-main);
    font-family: 'Quicksand', sans-serif;
    line-height: 1.6;
    /* overflow-x: hidden; */
    /* Fix for sticky positioning */
    min-height: 100vh;
    width: 100%;
    display: flex;
    flex-direction: column;
}

#bg-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
    border: 2px solid var(--body-bg);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}



.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 30px;
    position: relative;
    z-index: 1;
}

svg.icon {
    width: 22px;
    height: 22px;
    stroke: currentColor;
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
}

/* === SCROLL ANIMATIONS === */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    animation: revealFallback 0s 2s forwards;
}

/* Fallback: if JS never adds .active, CSS animation reveals content after 2s */
@keyframes revealFallback {
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Cancel the fallback animation once JS kicks in */
.reveal.active {
    animation: none;
}

/* Reduced motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    .reveal {
        transition: opacity 0.3s ease-out;
        transform: none;
    }

    .reveal.active {
        transform: none;
    }

    .float-animation {
        animation: none;
    }

    .blob {
        animation: none;
    }

    .shimmer-effect::after {
        animation: none;
        display: none;
    }

    .workflow-step:hover,
    .feature-card:hover,
    .tech-item:hover,
    .shortcut-item:hover,
    .os-card:hover,
    .wiki-category-card:hover {
        transform: none;
    }
}

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

.reveal.fade-up {
    transform: translateY(40px);
}

.reveal.zoom-in {
    transform: scale(0.95);
}

.reveal.active {
    transform: translateY(0) scale(1);
}

/* Stagger delays */
.features-grid .feature-card:nth-child(2) {
    transition-delay: 0.1s;
}

.features-grid .feature-card:nth-child(3) {
    transition-delay: 0.2s;
}

.features-grid .feature-card:nth-child(4) {
    transition-delay: 0.1s;
}

.features-grid .feature-card:nth-child(5) {
    transition-delay: 0.2s;
}

.features-grid .feature-card:nth-child(6) {
    transition-delay: 0.3s;
}

.delay-200 {
    transition-delay: 0.2s;
}

.delay-400 {
    transition-delay: 0.4s;
}

/* === Navbar === */
nav {
    display: flex;
    justify-content: space-between;
    width: 100%;
    max-width: 100%;
    margin: 0;
    align-items: center;
    padding: 12px max(30px, calc(50% - 600px));
    border-radius: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: none;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    box-sizing: border-box;
}

[data-theme="dark"] nav {
    background: rgba(13, 17, 23, 0.85);
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    border-color: var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-main);
}

.logo img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.nav-links {
    display: flex;
    gap: 30px;
    justify-self: end;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 700;
    font-size: 15px;
    transition: 0.2s;
}

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

/* === LAYOUT ZONES === */
.hero-wrapper {
    position: relative;
    padding-bottom: 120px;
    z-index: 2;
    width: 100%;
    overflow-x: hidden;
    overflow-y: visible;
    background: transparent;
}

.content-wrapper {
    position: relative;
    background: linear-gradient(180deg, var(--hero-gradient-start) 0%, var(--hero-gradient-mid) 20%, var(--hero-gradient-end) 100%);
    padding-bottom: 60px;
    padding-top: 120px;
    z-index: 5;
    backdrop-filter: blur(2px);
    width: 100%;
    overflow: hidden;
}

/* === Hero === */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    padding: 40px 0 20px;
    gap: 80px;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--tag-supported-bg);
    color: var(--primary);
    padding: 8px 20px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 24px;
    border: 1px solid var(--primary-dim);
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    white-space: nowrap;
    max-width: 100%;
    text-overflow: ellipsis;
}

.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    flex-shrink: 0;
    animation: badge-pulse 2s ease-in-out infinite;
}

@keyframes badge-pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.5;
        transform: scale(0.8);
    }
}

.hero-badge:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
    box-shadow: 0 4px 16px var(--primary-dim);
}

[data-theme="dark"] .hero-badge {
    background: rgba(100, 181, 246, 0.1);
    border-color: rgba(100, 181, 246, 0.2);
    color: #64B5F6;
    backdrop-filter: blur(8px);
}


h1 {
    font-size: 52px;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--text-main);
    font-weight: 800;
}

h1 span {
    background: linear-gradient(135deg, var(--primary) 0%, #42A5F5 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: var(--primary);
    /* Fallback */
    display: inline-block;
    /* Fix for some browsers clipping text */
}

.hero-desc {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 480px;
}

.btn-group {
    display: flex;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: var(--radius-m);
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

.btn-primary {
    background: var(--c-btn-primary-bg);
    color: var(--c-btn-primary-text);
    box-shadow: 0 8px 20px rgba(136, 201, 234, 0.4);
}

.btn-secondary {
    background: var(--btn-secondary-bg);
    color: var(--text-main);
    border: 2px solid var(--border-secondary);
}

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

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 480px;
}

.hero-card img {
    max-width: 100%;
    height: auto;
    display: block;
    filter: drop-shadow(0 20px 40px rgba(137, 207, 240, 0.3));
    transition: transform 0.5s ease-out;
}


.hero-card:hover img {
    transform: scale(1.02) rotate(-1deg);
}

/* === Section === */
.section-title {
    text-align: center;
    margin-bottom: 60px;
    padding-top: 0;
}

.section-title h2 {
    font-size: 42px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-main) 0%, var(--text-light) 100%);
    -webkit-background-clip: text;
    /* Safari/Chrome */
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 16px;
    color: var(--text-main);
    /* Fallback */
}

.section-title p {
    color: var(--text-muted);
}

/* === Cards === */
.box-card,
.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    box-shadow: 0 12px 32px -8px var(--shadow-color);
    padding: 40px;
    border-radius: var(--radius-l);
    transition: transform 0.3s, box-shadow 0.3s;
    height: 100%;
}

/* === Benchmark === */
.card-title code {
    background: var(--bar-track-bg);
    padding: 3px 8px;
    border-radius: 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    white-space: nowrap;
}

.code-directive {
    color: #C678DD;
    font-weight: 600;
}

.code-bracket {
    color: #ABB2BF;
}

.code-header {
    color: #98C379;
}

.benchmark-layout {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr;
    gap: 40px;
    padding-bottom: 80px;
}

.chart-item {
    margin-bottom: 30px;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    font-weight: 700;
    color: var(--text-main);
    font-size: 15px;
}

.bar-track {
    height: 16px;
    background: var(--bar-track-bg);
    border-radius: 100px;
    overflow: hidden;
}

.bar-value {
    height: 100%;
    border-radius: 100px;
    width: 0;
}

.bar-value.animate {
    animation: bar-load 1s ease-out forwards;
}

.bar-sameko {
    background: #039BE5;
    box-shadow: 0 0 12px rgba(3, 155, 229, 0.35);
}

.bar-devcpp6 {
    background: #90A4AE;
}

.bar-devcpp5 {
    background: #B0BEC5;
}

.bar-codeblocks {
    background: #CFD8DC;
}

.bar-vscode {
    background: #ECEFF1;
}

.standard-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
    border-bottom: 2px solid var(--border-secondary);
    font-weight: 700;
    color: var(--text-muted);
}

.standard-item:last-child {
    border-bottom: none;
}

.tag-supported {
    background: var(--tag-supported-bg);
    color: var(--tag-supported-text);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
}

.tag-limited {
    background: var(--tag-limited-bg);
    color: var(--tag-limited-text);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
}

/* === Features & Fun === */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.feature-icon-box {
    width: 70px;
    height: 70px;
    background: var(--feature-icon-bg);
    color: var(--primary);
    border-radius: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: visible;
}

/* Animations */
@keyframes pop {
    50% {
        transform: scale(1.4);
    }
}

.feature-card:nth-child(1):hover .feature-icon-box .icon {
    animation: pop 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes wiggle {

    0%,
    100% {
        transform: rotate(-10deg);
    }

    50% {
        transform: rotate(10deg);
    }
}

.feature-card:nth-child(2):hover .feature-icon-box .icon {
    animation: wiggle 0.4s ease-in-out infinite;
}

@keyframes float-icon {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

.feature-card:nth-child(3):hover .feature-icon-box .icon {
    animation: float-icon 1s ease-in-out infinite;
}

@keyframes panic {

    0%,
    100% {
        transform: translateX(0);
        stroke: #F44336;
    }

    25% {
        transform: translateX(-3px);
    }

    75% {
        transform: translateX(3px);
    }
}

.feature-card:nth-child(4):hover .feature-icon-box .icon {
    animation: panic 0.3s ease-in-out infinite;
    stroke: #EF5350;
}

@keyframes spin-color {
    0% {
        transform: rotate(0deg);
        stroke: #039BE5;
    }

    50% {
        stroke: #FF4081;
    }

    100% {
        transform: rotate(360deg);
        stroke: #039BE5;
    }
}

.feature-card:nth-child(5):hover .feature-icon-box .icon {
    animation: spin-color 2s linear infinite;
}

@keyframes bounce-icon {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(5px) scaleY(0.9);
    }
}

.feature-card:nth-child(6):hover .feature-icon-box .icon {
    animation: bounce-icon 0.6s ease infinite;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--text-main);
}

.feature-card p {
    font-size: 15px;
    color: var(--text-light);
}

/* === VISUAL DIVIDERS === */
.wave-divider,
.wave-divider-2 {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.wave-divider {
    top: -1px;
    transform: none;
    z-index: 10;
}

.wave-divider-2 {
    bottom: -1px;
    z-index: 10;
}

.wave-divider svg,
.wave-divider-2 svg {
    position: relative;
    display: block;
    width: 100%;
    height: 60px;
}

.wave-divider .shape-fill {
    fill: var(--body-bg);
}

.wave-divider-2 .shape-fill {
    fill: var(--wave-fill-2);
}

/* === ANIMATIONS & EFFECTS === */
.float-animation {
    animation: float-hero 6s ease-in-out infinite;
    will-change: transform;
}

@keyframes float-hero {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-15px);
    }
}

/* Shimmer Button Effect */
.shimmer-effect {
    position: relative;
    overflow: hidden;
}

.shimmer-effect::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 200%;
    height: 100%;
    background: linear-gradient(to right, transparent 0%, rgba(255, 255, 255, 0.4) 50%, transparent 100%);
    transform: skewX(-20deg);
    animation: shimmer 3s infinite;
    will-change: left;
}

@keyframes shimmer {
    0% {
        left: -150%;
    }

    20% {
        left: 150%;
    }

    100% {
        left: 150%;
    }
}

/* === Blobs === */
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    opacity: 0.6;
    animation: blob-move 20s infinite alternate;
    will-change: transform;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: var(--blob-1);
}

.blob-2 {
    bottom: 10%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: var(--blob-2);
    animation-delay: -5s;
}

@keyframes blob-move {
    0% {
        transform: translate(0, 0) scale(1);
    }

    100% {
        transform: translate(30px, -30px) scale(1.1);
    }
}

/* Footer */
footer {
    text-align: center;
    padding: 0;
    color: var(--text-muted);
    background: transparent;
    position: relative;
    z-index: 10;
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 80px 30px 40px;
}

.footer-main {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    text-align: left;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
}

.footer-brand {
    max-width: 360px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 16px;
}

.footer-logo img {
    border-radius: 6px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 8px;
}

.footer-license {
    font-size: 13px;
    opacity: 0.7;
}

.footer-links-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.footer-col h4 {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-main);
    margin-bottom: 16px;
    font-weight: 800;
}

.footer-col a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    padding: 4px 0;
    transition: color 0.2s;
}

.footer-col a:hover {
    color: var(--primary);
    text-decoration: none;
}

.footer-bottom {
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 14px;
}

/* === WORKFLOW SECTION === */
.workflow-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 100px;
}

.workflow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 32px 20px 40px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-l);
    position: relative;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.workflow-step:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px var(--shadow-color);
    border-color: var(--primary);
}

.workflow-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: white;
    font-size: 12px;
    font-weight: 800;
    padding: 6px 16px;
    border-radius: 100px;
    white-space: nowrap;
    letter-spacing: 0.4px;
    margin-bottom: 16px;
}

.workflow-icon-box {
    width: 80px;
    height: 80px;
    background: var(--feature-icon-bg);
    color: var(--primary);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.workflow-step:hover .workflow-icon-box {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--shadow-color);
}

.workflow-step h3 {
    font-size: 17px;
    margin-bottom: 8px;
    color: var(--text-main);
}

.workflow-step p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.5;
}

/* === TECH STACK === */
#tech-stack {
    padding: 60px 0 80px;
}

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

.tech-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.tech-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--shadow-color);
    border-color: var(--primary);
}

.tech-icon-box {
    width: 48px;
    height: 48px;
    background: var(--feature-icon-bg);
    color: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tech-info h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 2px;
}

.tech-info p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
}

/* === KEYBOARD SHORTCUTS === */
#shortcuts {
    padding: 60px 0 80px;
}

.shortcuts-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.shortcut-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.shortcut-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--shadow-color);
    border-color: var(--primary);
}

.shortcut-keys {
    display: flex;
    gap: 4px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}

.shortcut-item span {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    text-align: center;
}

.shortcuts-note {
    text-align: center;
    margin-top: 24px;
    font-size: 14px;
    color: var(--text-muted);
    opacity: 0.7;
}

/* === FAQ === */
#faq {
    padding: 60px 0 80px;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: 16px;
    margin-bottom: 12px;
    overflow: hidden;
    background: var(--card-bg);
    transition: border-color 0.3s;
}

.faq-item:hover {
    border-color: var(--primary);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 16px;
    font-weight: 700;
    color: var(--text-main);
    text-align: left;
    gap: 16px;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-chevron {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    transition: transform 0.3s;
    color: var(--text-muted);
}

.faq-item.active .faq-chevron {
    transform: rotate(180deg);
    color: var(--primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    padding: 0 24px;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 24px 20px;
}

.faq-answer p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.7;
}

/* === OPEN SOURCE === */
#open-source {
    padding: 60px 0 80px;
}

.open-source-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.os-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-l);
    padding: 36px;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    text-align: center;
}

.os-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px var(--shadow-color);
    border-color: var(--primary);
}

.os-icon {
    width: 64px;
    height: 64px;
    background: var(--feature-icon-bg);
    color: var(--primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.os-card h3 {
    font-size: 20px;
    color: var(--text-main);
    margin-bottom: 12px;
}

.os-card p {
    font-size: 15px;
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.6;
}

.os-link {
    font-weight: 700;
    font-size: 15px;
    color: var(--primary);
    text-decoration: none;
    transition: opacity 0.2s;
}

.os-link:hover {
    opacity: 0.8;
}

/* === CTA BANNER === */
.cta-banner {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-l);
    padding: 60px 40px;
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), #42A5F5, var(--primary));
}

.cta-banner h2 {
    font-size: 36px;
    color: var(--text-main);
    margin-bottom: 16px;
    font-weight: 800;
    background: none;
    -webkit-text-fill-color: var(--text-main);
}

.cta-banner p {
    color: var(--text-muted);
    font-size: 17px;
    max-width: 560px;
    margin: 0 auto 32px;
    line-height: 1.6;
}

.cta-banner .btn-secondary:hover {
    background: var(--primary-dim);
    border-color: var(--primary);
}

@keyframes bar-load {
    to {
        width: var(--w);
    }
}

/* === RESPONSIVE: Tablet (max 900px) === */
@media (max-width: 900px) {
    .container {
        padding: 0 20px;
    }

    .hero,
    .benchmark-layout,
    .features-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        text-align: center;
        gap: 40px;
        padding: 20px 0;
    }


    .hero-content {
        order: 1;
    }

    .hero-visual {
        order: 2;
        min-height: auto;
    }

    .hero-card img {
        max-width: 350px;
        margin: 0 auto;
    }

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

    .btn-group {
        justify-content: center;
        flex-wrap: wrap;
    }

    .wave-divider svg,
    .wave-divider-2 svg {
        height: 50px;
    }

    .content-wrapper {
        padding-top: 60px;
        margin-top: -2px;
    }

    /* Mobile Nav Fixes */
    nav {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .nav-links {
        display: flex;
        gap: 20px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-links a {
        margin-left: 0;
    }

    h1 {
        font-size: 38px;
    }

    .section-title h2 {
        font-size: 32px;
    }

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

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

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

    .open-source-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-brand {
        max-width: 100%;
    }

    .workflow-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
}

/* === RESPONSIVE: Mobile (max 600px) === */
@media (max-width: 600px) {
    .container {
        padding: 0 16px;
    }

    h1 {
        font-size: 26px;
        line-height: 1.3;
    }

    .hero-desc {
        font-size: 15px;
        margin-bottom: 24px;
    }

    .hero-badge {
        font-size: 12px;
        padding: 7px 16px;
    }

    .hero-badge::before {
        width: 6px;
        height: 6px;
    }

    .hero-wrapper {
        padding-bottom: 40px;
    }

    .hero-card img {
        max-width: 220px;
    }

    .hero-visual {
        min-height: auto;
        margin-top: -10px;
    }

    .btn-group {
        flex-direction: column;
        gap: 12px;
        width: 100%;
    }

    .btn {
        width: 100%;
        padding: 14px 24px;
        font-size: 15px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .feature-card,
    .box-card {
        padding: 24px;
    }

    .feature-icon-box {
        width: 56px;
        height: 56px;
        border-radius: 18px;
        margin-bottom: 16px;
    }

    .feature-card h3 {
        font-size: 17px;
    }

    .feature-card p {
        font-size: 14px;
    }

    .section-title h2 {
        font-size: 24px;
    }

    .section-title p {
        font-size: 14px;
    }

    .section-title {
        margin-bottom: 32px;
    }

    .benchmark-layout {
        gap: 20px;
        padding-bottom: 40px;
    }

    .chart-header {
        font-size: 13px;
    }

    footer {
        padding: 0;
    }

    .footer-content {
        padding: 40px 16px 24px;
    }

    .footer-links-grid {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }

    .theme-toggle {
        width: 44px;
        height: 44px;
        bottom: 16px;
        left: 16px;
    }

    .theme-toggle svg {
        width: 20px;
        height: 20px;
    }

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

    .tech-item {
        padding: 16px;
        gap: 12px;
    }

    .tech-icon-box {
        width: 40px;
        height: 40px;
    }

    .tech-info h4 {
        font-size: 15px;
    }

    .shortcuts-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .shortcut-item {
        padding: 16px 12px;
        gap: 8px;
    }

    .shortcut-item span {
        font-size: 12px;
    }

    kbd {
        padding: 3px 6px;
        font-size: 12px;
    }

    .workflow-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .workflow-step {
        padding: 24px 16px 28px;
    }

    .workflow-icon-box {
        width: 60px;
        height: 60px;
        border-radius: 18px;
    }

    .open-source-grid {
        gap: 16px;
    }

    .os-card {
        padding: 24px;
    }

    .cta-banner {
        padding: 32px 20px;
    }

    .cta-banner h2 {
        font-size: 26px;
    }

    .faq-question {
        font-size: 14px;
        padding: 16px 20px;
    }
}

/* === FEATURES WRAPPER === */
.features-wrapper {
    background: var(--feature-zone-bg);
    position: relative;
    z-index: 5;
    width: 100%;
    overflow-x: hidden;
}

/* === Benchmark Card Title Dark Mode Fix === */
.card-title {
    color: var(--text-main);
}

[data-theme="dark"] #benchmark-card h3,
[data-theme="dark"] .box-card h3 {
    color: var(--text-main);
}

/* === WIKI === */
.wiki-wrapper {
    padding-top: 40px;
    background: var(--body-bg);
    min-height: 100vh;
}

.wiki-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 60px;
    position: relative;
    padding-bottom: 80px;
}

.wiki-sidebar {
    position: sticky;
    top: 100px;
    align-self: start;
    padding-right: 20px;
    border-right: 2px solid var(--border-color);
    max-height: calc(100vh - 140px);
    overflow-y: auto;
}

.wiki-sidebar-toggle {
    display: none;
}

.wiki-sidebar-nav {
    display: contents;
}

.wiki-nav-group {
    margin-bottom: 24px;
}

.wiki-nav-title {
    font-size: 14px;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

/* Wiki Language Switcher */
.lang-switcher {
    position: fixed;
    bottom: 24px;
    left: 90px;
    display: flex;
    gap: 4px;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 100px;
    padding: 4px;
    box-shadow: 0 4px 20px var(--shadow-color);
    z-index: 1000;
}

.lang-btn {
    padding: 8px 14px;
    border: none;
    background: transparent;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    color: var(--text-muted);
    transition: color 0.2s, background-color 0.2s;
    font-family: inherit;
}

.lang-btn:hover {
    color: var(--text-main);
}

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

/* Sidebar Active State Enhancements */
.wiki-nav-link {
    display: block;
    padding: 8px 12px;
    margin-left: -12px;
    border-left: 3px solid transparent;
    color: var(--text-light);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: color 0.2s, opacity 0.2s, border-color 0.2s, background 0.2s;
    opacity: 0.8;
}

.wiki-nav-link:hover {
    color: var(--primary);
    opacity: 1;
    background: var(--primary-dim);
    border-radius: 0 var(--radius-m) var(--radius-m) 0;
    text-decoration: none;
    transform: none;
    /* Disable transform to avoid layout shift with border */
}

.wiki-nav-link.active {
    color: var(--primary);
    transform: none;
    opacity: 1;
    font-weight: 700;
    border-left-color: var(--primary);
    background: linear-gradient(90deg, var(--primary-dim) 0%, transparent 100%);
}

.wiki-content {
    min-height: 60vh;
    max-width: 820px;
}

.wiki-content section {
    margin-bottom: 60px;
    padding-bottom: 40px;
    border-bottom: 1px dashed var(--border-color);
}

.wiki-content section:last-child {
    border-bottom: none;
}

.wiki-content h1 {
    font-size: 42px;
    margin-bottom: 10px;
    color: var(--text-main);
    font-weight: 800;
}

.wiki-subtitle {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 40px;
}

.wiki-content h2 {
    font-size: 28px;
    margin-top: 40px;
    margin-bottom: 16px;
    color: var(--text-main);
    font-weight: 700;
}

.wiki-content p {
    color: var(--text-main);
    margin-bottom: 16px;
    font-size: 16px;
    line-height: 1.8;
}

.wiki-content ul,
.wiki-content ol {
    margin-bottom: 24px;
    padding-left: 24px;
    color: var(--text-main);
}

.wiki-content li {
    margin-bottom: 8px;
}

.wiki-content code {
    background: var(--bar-track-bg);
    padding: 2px 6px;
    border-radius: 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    color: var(--primary);
}

.wiki-content pre {
    background: var(--card-bg);
    padding: 24px;
    border-radius: var(--radius-m);
    border: 1px solid var(--border-color);
    margin: 24px 0;
    overflow-x: auto;
    box-shadow: 0 4px 12px var(--shadow-color);
    line-height: 1.6;
}

.wiki-content pre code {
    background: transparent;
    padding: 0;
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    font-size: 14px;
    line-height: 1.6;
}

/* Syntax Highlighting for Code Blocks */
.wiki-content pre code .keyword {
    color: #C678DD;
    font-weight: 600;
}

.wiki-content pre code .string {
    color: #98C379;
}

.wiki-content pre code .comment {
    color: #5C6370;
    font-style: italic;
}

.wiki-content pre code .function {
    color: #61AFEF;
}

.wiki-content pre code .number {
    color: #D19A66;
}

.wiki-content pre code .operator {
    color: #ABB2BF;
}

.wiki-content pre code .type {
    color: #E5C07B;
}

[data-theme="dark"] .wiki-content pre code .keyword {
    color: #C678DD;
}

[data-theme="dark"] .wiki-content pre code .string {
    color: #98C379;
}

[data-theme="dark"] .wiki-content pre code .comment {
    color: #5C6370;
}

[data-theme="dark"] .wiki-content pre code .function {
    color: #61AFEF;
}

[data-theme="dark"] .wiki-content pre code .number {
    color: #D19A66;
}

/* Custom Scrollbar for Sidebar */
.wiki-sidebar::-webkit-scrollbar {
    width: 6px;
}

.wiki-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.wiki-sidebar::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}

.wiki-sidebar:hover::-webkit-scrollbar-thumb {
    background: var(--text-muted);
}

/* === WIKI ADDITIONAL STYLES === */

/* Wiki Tables */
.wiki-table-wrapper {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 24px 0;
    border-radius: var(--radius-m);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px var(--shadow-color);
    position: relative;
    touch-action: pan-x pan-y;
}

/* Scroll hint indicator for tables */
.wiki-table-wrapper.has-scroll::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 32px;
    background: linear-gradient(to right, transparent, rgba(0, 0, 0, 0.06));
    border-radius: 0 var(--radius-m) var(--radius-m) 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

[data-theme="dark"] .wiki-table-wrapper.has-scroll::after {
    background: linear-gradient(to right, transparent, rgba(0, 0, 0, 0.25));
}

.wiki-table-wrapper.scrolled-end::after {
    opacity: 0;
}

/* Mobile scrollbar visibility for table wrappers */
@media (max-width: 900px) {
    .wiki-table-wrapper::-webkit-scrollbar {
        height: 6px;
    }

    .wiki-table-wrapper::-webkit-scrollbar-track {
        background: var(--bar-track-bg);
        border-radius: 3px;
    }

    .wiki-table-wrapper::-webkit-scrollbar-thumb {
        background: var(--text-muted);
        border-radius: 3px;
        opacity: 0.6;
    }
}

.wiki-content table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 15px;
    background: var(--card-bg);
    min-width: 480px;
}

.wiki-content thead {
    background: linear-gradient(135deg, var(--feature-icon-bg) 0%, var(--primary-dim) 100%);
}

.wiki-content th {
    padding: 16px 20px;
    text-align: left;
    font-weight: 700;
    color: var(--text-main);
    border-bottom: 2px solid var(--primary);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.wiki-content td {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-main);
    background: var(--card-bg);
}

.wiki-content tbody tr:last-child td {
    border-bottom: none;
}

.wiki-content tbody tr:hover td {
    background: var(--primary-dim);
    transition: background 0.2s;
}

/* Callout Boxes */
.callout {
    padding: 16px 20px;
    border-left: 4px solid;
    border-radius: 0 12px 12px 0;
    margin: 24px 0;
    background: var(--card-bg);
}

.callout-title {
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.callout.tip {
    border-color: #3b82f6;
}

.callout.tip .callout-title {
    color: #3b82f6;
}

.callout.warning {
    border-color: #f59e0b;
}

.callout.warning .callout-title {
    color: #f59e0b;
}

.callout.danger {
    border-color: #ef4444;
}

.callout.danger .callout-title {
    color: #ef4444;
}

.callout.note {
    border-color: var(--primary);
}

.callout.note .callout-title {
    color: var(--primary);
}

/* Code Block with Copy Button */
.code-wrapper {
    position: relative;
    margin: 24px 0;
}

.code-wrapper .copy-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 6px 12px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s, transform 0.2s, background-color 0.2s;
}

.code-wrapper:hover .copy-btn {
    opacity: 1;
}

.code-wrapper .copy-btn:hover {
    background: var(--text-main);
    transform: translateY(-2px);
}

.code-wrapper .copy-btn.copied {
    background: #10b981;
}

/* Step-by-step Tutorial */
.tutorial-steps {
    counter-reset: step;
}

.tutorial-step {
    position: relative;
    padding-left: 48px;
    margin-bottom: 32px;
}

.tutorial-step::before {
    content: counter(step);
    counter-increment: step;
    position: absolute;
    left: 0;
    top: 0;
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
}

.tutorial-step h3 {
    margin-bottom: 12px;
    color: var(--text-main);
}

/* Section Navigation */
.wiki-section-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.wiki-nav-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-m);
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
    max-width: 45%;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: opacity 0.2s, color 0.2s;
    opacity: 0.9;
}

a:hover {
    opacity: 1;
    text-decoration: none;
}

.wiki-nav-btn:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--shadow-color);
}

.wiki-nav-btn .label {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
}

.wiki-nav-btn .title {
    font-weight: 700;
    color: var(--text-main);
}

.wiki-nav-btn svg {
    color: var(--primary);
}

/* Wiki Content Images */
.wiki-content img {
    max-width: 100%;
    border-radius: var(--radius-m);
    margin: 24px 0;
    border: 1px solid var(--border-color);
}

/* Keyboard Shortcut Tags */
kbd {
    display: inline-block;
    padding: 4px 8px;
    font-size: 13px;
    font-family: 'JetBrains Mono', monospace;
    background: var(--bar-track-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 2px 0 var(--border-color);
    color: var(--text-main);
}

/* Wiki Hero Section for Hub */
.wiki-hero {
    text-align: center;
    padding: 60px 0 40px;
}

.wiki-hero h1 {
    font-size: 48px;
    margin-bottom: 16px;
}

.wiki-hero p {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 40px;
}

/* Wiki Category Cards */
.wiki-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
}

.wiki-category-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-l);
    padding: 32px;
    text-decoration: none;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.wiki-category-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px var(--shadow-color);
    border-color: var(--primary);
}

.wiki-category-card .icon-box {
    width: 56px;
    height: 56px;
    background: var(--feature-icon-bg);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--primary);
}

.wiki-category-card h3 {
    font-size: 20px;
    color: var(--text-main);
    margin-bottom: 12px;
}

.wiki-category-card p {
    font-size: 15px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.wiki-category-card .link-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.wiki-category-card .link-list li {
    margin-bottom: 8px;
}

.wiki-category-card .link-list a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.wiki-category-card .link-list a:hover {
    color: var(--primary);
}

/* Wiki Search */
.wiki-search {
    max-width: 500px;
    margin: 0 auto 60px;
    position: relative;
}

.wiki-search input {
    width: 100%;
    padding: 16px 24px 16px 52px;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 100px;
    font-size: 16px;
    font-family: inherit;
    color: var(--text-main);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.wiki-search input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-dim);
}

.wiki-search input::placeholder {
    color: var(--text-muted);
}

.wiki-search svg {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

/* Wiki Content h3 */
.wiki-content h3 {
    font-size: 22px;
    margin-top: 32px;
    margin-bottom: 12px;
    color: var(--text-main);
    font-weight: 700;
}

/* Responsive Wiki */
@media (max-width: 900px) {
    .wiki-layout {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .wiki-sidebar {
        position: sticky;
        top: 0;
        z-index: 100;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 0;
        margin-bottom: 40px;
        max-height: none;
        padding-right: 0;
        background: var(--body-bg);
        overflow: visible;
    }

    .wiki-sidebar-toggle {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        padding: 14px 16px;
        background: var(--card-bg);
        border: none;
        border-bottom: 1px solid var(--border-color);
        color: var(--text-main);
        font-family: inherit;
        font-size: 15px;
        font-weight: 700;
        cursor: pointer;
        gap: 8px;
    }

    .wiki-sidebar-toggle svg {
        width: 18px;
        height: 18px;
        color: var(--text-muted);
        transition: transform 0.3s;
        flex-shrink: 0;
    }

    .wiki-sidebar.open .wiki-sidebar-toggle svg {
        transform: rotate(180deg);
    }

    .wiki-sidebar-nav {
        display: none;
        padding: 12px 16px 16px;
        background: var(--card-bg);
        border-bottom: 1px solid var(--border-color);
        max-height: 60vh;
        overflow-y: auto;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    }

    .wiki-sidebar.open .wiki-sidebar-nav {
        display: block;
    }

    .wiki-content h1 {
        font-size: 32px;
    }

    .wiki-hero h1 {
        font-size: 36px;
    }

    .wiki-section-nav {
        flex-direction: column;
        gap: 12px;
    }

    .wiki-nav-btn {
        max-width: 100%;
    }

    .lang-switcher {
        left: 50%;
        transform: translateX(-50%);
        bottom: 16px;
    }
}

@media (max-width: 600px) {
    .wiki-wrapper {
        padding-top: 20px;
    }

    .wiki-layout {
        gap: 0;
        padding-bottom: 100px;
    }

    .wiki-content {
        max-width: 100%;
        overflow-x: hidden;
    }

    .wiki-table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin-left: -2px;
        margin-right: -2px;
        padding-left: 2px;
        padding-right: 2px;
    }

    .wiki-content h1 {
        font-size: 24px;
    }

    .wiki-content h2 {
        font-size: 20px;
        margin-top: 28px;
    }

    .wiki-content h3 {
        font-size: 17px;
        margin-top: 24px;
    }

    .wiki-content p {
        font-size: 14px;
        line-height: 1.7;
    }

    .wiki-content ul {
        padding-left: 18px;
    }

    .wiki-content li {
        font-size: 14px;
    }

    /* Table: responsive on mobile */
    .wiki-content table {
        font-size: 13px;
        min-width: 420px;
    }

    .wiki-content th,
    .wiki-content td {
        padding: 10px 12px;
        font-size: 13px;
        white-space: nowrap;
    }

    /* kbd smaller on mobile */
    kbd {
        padding: 2px 5px;
        font-size: 11px;
    }

    .wiki-content pre {
        padding: 12px;
        font-size: 12px;
        border-radius: 12px;
    }

    .wiki-content pre code {
        font-size: 12px;
    }

    .wiki-subtitle {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .wiki-content section {
        margin-bottom: 32px;
        padding-bottom: 20px;
    }

    .callout {
        padding: 10px 14px;
        font-size: 14px;
    }

    .tutorial-step {
        padding-left: 36px;
    }

    .tutorial-step::before {
        width: 26px;
        height: 26px;
        font-size: 12px;
    }

    .wiki-nav-btn {
        padding: 12px 16px;
    }

    /* Fixed bottom buttons spacing */
    .lang-switcher {
        bottom: 12px;
        z-index: 1001;
    }

    .theme-toggle {
        z-index: 1001;
    }

    .wiki-hero {
        padding: 30px 0 20px;
    }

    .wiki-hero h1 {
        font-size: 28px;
    }

    .wiki-hero p {
        font-size: 15px;
    }

    /* Sidebar compact on mobile */
    .wiki-sidebar {
        margin-bottom: 24px;
    }

    .wiki-sidebar-toggle {
        padding: 12px 16px;
        font-size: 14px;
    }

    .wiki-sidebar-nav {
        padding: 10px 14px 14px;
    }

    .wiki-nav-title {
        font-size: 12px;
    }

    .wiki-nav-link {
        padding: 6px 10px;
        font-size: 14px;
    }

    .wiki-nav-group {
        margin-bottom: 16px;
    }
}


@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    /* Stack Hero: Text top, Image bottom */
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
        padding-top: 20px;
    }

    /* Mobile background fallback (canvas disabled) */
    .hero-wrapper {
        background:
            radial-gradient(ellipse at 20% 50%, var(--hero-gradient-start) 0%, transparent 60%),
            radial-gradient(ellipse at 80% 20%, var(--hero-gradient-mid) 0%, transparent 50%),
            radial-gradient(ellipse at 50% 80%, var(--hero-gradient-end) 0%, transparent 60%),
            linear-gradient(to bottom, var(--body-bg) 0%, var(--hero-gradient-start) 100%);
        background-color: var(--hero-gradient-start);
    }

    #bg-canvas {
        display: none;
    }

    .hero-content {
        order: 1;
        /* Text first */
        margin: 0 auto;
    }

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

    .hero-visual {
        order: 2;
        /* Image second */
        min-height: auto;
        margin-top: -20px;
    }

    .hero-card {
        max-width: 60%;
        margin: 0 auto;
    }

    .btn-group {
        justify-content: center;
        flex-wrap: wrap;
    }

    h1 {
        font-size: 32px;
    }

    /* Stack Grids */
    .benchmark-layout {
        grid-template-columns: 1fr;
    }

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

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

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

    /* Mobile Nav: Horizontal Scroll */
    nav {
        flex-direction: column;
        gap: 16px;
        padding: 12px 20px;
    }

    .nav-links {
        display: flex;
        /* Show it! */
        width: 100%;
        overflow-x: auto;
        padding-bottom: 4px;
        /* Space for scrollbar */
        gap: 20px;
        justify-content: center;
        /* Center links if they fit */
        -webkit-overflow-scrolling: touch;
    }

    .nav-links::-webkit-scrollbar {
        height: 0;
        /* Hide scrollbar for cleaner look */
        width: 0;
    }

    .theme-toggle,
    .scroll-top {
        width: 44px;
        height: 44px;
        bottom: 16px
    }

    .theme-toggle {
        left: 16px
    }

    .scroll-top {
        right: 16px
    }
}

/* Accessibility Fixes */
footer {
    opacity: 1 !important;
}

footer p {
    color: var(--text-muted);
    opacity: 1;
}

/* === Download Dropdown === */
.hero-wrapper .dropdown-wrapper {
    position: relative;
    display: inline-block;
}

.hero-wrapper .drop-menu {
    position: absolute;
    top: calc(100% + 14px);
    left: 0;
    width: 340px;
    background: var(--card-bg, #ffffff);
    border: 1px solid var(--border-color, rgba(0, 0, 0, 0.1));
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px) scale(0.98);
    transform-origin: top left;
    transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.3s, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 100;
}

[data-theme="dark"] .hero-wrapper .drop-menu {
    background: rgba(30, 30, 35, 0.95);
    border-color: rgba(255, 255, 255, 0.1);
}

.hero-wrapper .dropdown-wrapper.active .drop-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.drop-item {
    display: flex;
    align-items: flex-start;
    padding: 14px;
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-main);
    transition: background 0.2s;
    gap: 16px;
    margin-bottom: 2px;
}

.drop-item:last-child {
    margin-bottom: 0;
}

.drop-item:hover {
    background: var(--border-secondary, rgba(0, 0, 0, 0.05));
    text-decoration: none;
    transform: translateX(4px);
}

[data-theme="dark"] .drop-item:hover {
    background: rgba(255, 255, 255, 0.08);
}

.drop-item .item-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    color: var(--primary);
    margin-top: 2px;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.drop-item:hover .item-icon {
    transform: scale(1.1);
}

.drop-item .item-content {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.drop-item .item-top {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
    flex-wrap: nowrap;
}

.drop-title {
    font-weight: 700;
    font-size: 15px;
    white-space: nowrap;
}

.badge-rec {
    display: inline-flex;
    align-items: center;
    background: rgba(76, 175, 80, 0.15);
    color: #4CAF50;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 20px;
    white-space: nowrap;
    border: 1px solid rgba(76, 175, 80, 0.2);
    letter-spacing: 0.2px;
}

.drop-desc {
    font-size: 13px;
    color: var(--text-muted);
    opacity: 0.9;
    line-height: 1.4;
}

/* Chevron animation */
.btn .chevron {
    width: 18px;
    height: 18px;
    margin-left: 8px;
    margin-right: -4px !important;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.dropdown-wrapper.active .btn .chevron {
    transform: rotate(180deg);
}

/* Close overlay for click-outside */
.dropdown-overlay {
    position: fixed;
    inset: 0;
    z-index: 90;
    display: none;
}

.dropdown-wrapper.active .dropdown-overlay {
    display: block;
}