/* ============================================
   DOCS PAGE - 3-Step Professional Layout
   ============================================ */

.docs-page .footer { margin-top: 0; }

/* ============================================
   View System
   ============================================ */
.docs-view {
    display: block;
    animation: viewFadeIn 0.5s ease;
}

.docs-view[hidden] {
    display: none !important;
}

@keyframes viewFadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   VIEW 1: HOME - Hero
   ============================================ */
.docs-home-hero {
    position: relative;
    padding: 160px 0 100px;
    overflow: hidden;
}

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

.docs-hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--border-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.25;
    mask-image: radial-gradient(ellipse at 50% 30%, #000 10%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 10%, transparent 75%);
}

.docs-hero-glow {
    position: absolute;
    top: -150px;
    left: 20%;
    width: 700px;
    height: 500px;
    background: radial-gradient(ellipse, rgba(247,147,26,0.18), transparent 70%);
    filter: blur(40px);
    animation: glowFloat 15s ease-in-out infinite;
}

.docs-hero-glow.glow-2 {
    top: 10%;
    left: 60%;
    width: 500px;
    height: 400px;
    background: radial-gradient(ellipse, rgba(168,85,247,0.15), transparent 70%);
    animation-delay: -5s;
}

@keyframes glowFloat {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}

.docs-home-hero-inner {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.docs-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 18px;
    background: var(--card-bg);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-full);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 28px;
    animation: fadeInDown 0.6s ease;
    box-shadow: var(--shadow);
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 0 3px rgba(34,197,94,0.3);
    animation: pulseDot 2s ease-out infinite;
}

@keyframes pulseDot {
    0% { box-shadow: 0 0 0 0 rgba(34,197,94,0.5); }
    70% { box-shadow: 0 0 0 10px rgba(34,197,94,0); }
    100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}

.docs-home-title {
    font-size: clamp(2.4rem, 6vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
    animation: fadeInUp 0.7s 0.1s both;
}

.docs-home-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 620px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.7s 0.2s both;
}

/* Hero Search */
.docs-home-search {
    position: relative;
    max-width: 580px;
    margin: 0 auto 32px;
    animation: fadeInUp 0.7s 0.3s both;
}

.docs-search-wrapper {
    display: flex;
    align-items: center;
    position: relative;
    background: var(--card-bg);
    border: 2px solid var(--border-strong);
    border-radius: var(--radius-xl);
    padding: 4px;
    transition: all var(--transition);
    box-shadow: var(--shadow);
}

.docs-search-wrapper:focus-within {
    border-color: var(--gold);
    box-shadow: var(--shadow-lg), 0 0 0 4px rgba(247,147,26,0.1);
}

.docs-search-wrapper i {
    font-size: 1.4rem;
    color: var(--text-muted);
    padding: 0 16px;
    transition: color var(--transition);
}

.docs-search-wrapper:focus-within i { color: var(--gold); }

.docs-search-wrapper input {
    flex: 1;
    padding: 14px 0;
    font-size: 1rem;
    background: transparent;
    color: var(--text-primary);
}

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

.docs-search-wrapper kbd {
    padding: 6px 12px;
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
    margin-inline-end: 6px;
}

/* Search Dropdown */
.docs-search-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    background: var(--card-bg);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-height: 400px;
    overflow-y: auto;
    z-index: 100;
}

.docs-search-dropdown.active { display: block; animation: fadeInDown 0.2s ease; }

.search-dropdown-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.search-dropdown-item:last-child { border-bottom: none; }
.search-dropdown-item:hover { background: var(--surface); }

.search-dropdown-item i {
    font-size: 1.3rem;
    color: var(--gold);
    flex-shrink: 0;
}

.search-dropdown-item .item-title {
    font-weight: 600;
    font-size: 0.94rem;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.search-dropdown-item .item-cat {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.search-dropdown-empty {
    padding: 32px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.search-dropdown-empty i {
    font-size: 2rem;
    display: block;
    margin-bottom: 8px;
    opacity: 0.5;
}

/* Popular Topics */
.docs-popular-topics {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
    animation: fadeInUp 0.7s 0.4s both;
}

.topics-label {
    font-size: 0.88rem;
    color: var(--text-muted);
    font-weight: 500;
}

.topics-chips {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.topic-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.84rem;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition);
}

.topic-chip:hover {
    background: var(--surface);
    border-color: var(--gold);
    color: var(--gold);
    transform: translateY(-2px);
}

.topic-chip i { font-size: 1rem; }

/* ============================================
   Stats Bar
   ============================================ */
.docs-stats-bar {
    position: relative;
    margin-top: -50px;
    z-index: 2;
    padding: 0 0 60px;
}

.stats-bar-inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
    align-items: center;
    padding: 28px 40px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 8px 0;
}

.stat-icon-box {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(247,147,26,0.15), rgba(168,85,247,0.1));
    display: grid;
    place-items: center;
    color: var(--gold);
    font-size: 1.4rem;
    flex-shrink: 0;
}

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

.stat-number {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
}

.stat-label {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

/* ============================================
   Categories Grid
   ============================================ */
.docs-categories-section {
    padding: 40px 0 80px;
}

.section-header-inline {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 20px;
}

.section-heading {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 12px;
    letter-spacing: -0.02em;
}

.section-heading i {
    color: var(--gold);
    font-size: 1.5rem;
}

.section-subtext {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

/* Category Card */
.category-card {
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 32px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    animation: fadeInUp 0.5s calc(var(--card-index) * 0.05s + 0.1s) both;
}

.category-card-bg {
    position: absolute;
    top: -50%;
    right: -30%;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    opacity: 0;
    filter: blur(60px);
    transition: all 0.6s ease;
    pointer-events: none;
}

.category-card:hover {
    transform: translateY(-6px);
    border-color: transparent;
    box-shadow: var(--shadow-xl);
}

.category-card:hover .category-card-bg {
    opacity: 0.2;
    transform: scale(1.5);
}

.category-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    padding: 2px;
    background: linear-gradient(135deg, var(--gold), var(--purple));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

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

.category-card-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 1.8rem;
    margin-bottom: 24px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
    transition: transform 0.4s var(--bounce);
}

.category-card:hover .category-card-icon {
    transform: scale(1.08) rotate(-6deg);
}

.category-card-content {
    flex: 1;
    margin-bottom: 24px;
}

.category-card-title {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.category-card-desc {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.7;
}

.category-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.category-card-stat {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.84rem;
    color: var(--text-muted);
    font-weight: 500;
}

.category-card-stat i {
    color: var(--gold);
    font-size: 1.1rem;
}

.category-card-arrow {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--gold);
    transition: gap var(--transition);
}

.category-card:hover .category-card-arrow { gap: 10px; }
.category-card-arrow i { font-size: 1.2rem; transition: transform var(--transition); }

[dir="rtl"] .category-card:hover .category-card-arrow i {
    transform: translateX(-6px);
}

[dir="ltr"] .category-card:hover .category-card-arrow i {
    transform: translateX(6px);
}

/* ============================================
   Featured Section
   ============================================ */
.docs-featured-section {
    padding: 80px 0 100px;
    background: linear-gradient(180deg, transparent, var(--secondary-bg));
    border-top: 1px solid var(--border-color);
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.featured-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 24px;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    cursor: pointer;
}

.featured-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-strong);
    box-shadow: var(--shadow-md);
}

.featured-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.featured-cat {
    padding: 3px 10px;
    background: rgba(247,147,26,0.1);
    border: 1px solid rgba(247,147,26,0.2);
    border-radius: var(--radius-sm);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--gold);
}

.featured-time {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.featured-card-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
    line-height: 1.4;
}

.featured-card-excerpt {
    color: var(--text-secondary);
    font-size: 0.86rem;
    line-height: 1.6;
    margin-bottom: 16px;
    flex: 1;
}

.featured-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--gold);
    transition: gap var(--transition);
}

.featured-card:hover .featured-card-link { gap: 10px; }

/* ============================================
   VIEW 2: CATEGORY - Doc List
   ============================================ */
.docs-view-category {
    padding: 100px 0 80px;
}

/* Back Navigation */
.back-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.92rem;
    cursor: pointer;
    font-family: inherit;
    margin-bottom: 32px;
    transition: all var(--transition);
}

.back-nav-btn:hover {
    border-color: var(--gold);
    color: var(--gold);
    transform: translateX(4px);
}

[dir="ltr"] .back-nav-btn:hover { transform: translateX(-4px); }

.back-nav-btn i { font-size: 1.2rem; }

/* Category Hero */
.category-hero {
    display: flex;
    align-items: center;
    gap: 32px;
    padding: 48px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl, 24px);
    margin-bottom: 32px;
    position: relative;
    overflow: hidden;
}

.category-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    inset-inline-end: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(247,147,26,0.15), transparent 70%);
    filter: blur(40px);
    pointer-events: none;
}

.category-hero-icon {
    width: 96px;
    height: 96px;
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, var(--gold), var(--gold-hover));
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 2.5rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-lg), var(--glow-gold);
    position: relative;
    z-index: 1;
}

.category-hero-content {
    flex: 1;
    position: relative;
    z-index: 1;
}

.category-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    background: rgba(247,147,26,0.1);
    border: 1px solid rgba(247,147,26,0.2);
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--gold);
    margin-bottom: 12px;
}

.category-hero-title {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 800;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
}

.category-hero-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 18px;
    max-width: 600px;
}

.category-hero-stats {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.cat-stat {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.cat-stat i {
    color: var(--gold);
    font-size: 1.1rem;
}

/* Learning Path Card */
.learning-path-card {
    padding: 20px 24px;
    background: linear-gradient(135deg, rgba(247,147,26,0.08), rgba(168,85,247,0.06));
    border: 1px solid rgba(247,147,26,0.2);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
}

.learning-path-card i {
    font-size: 2rem;
    color: var(--gold);
    flex-shrink: 0;
}

.learning-path-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.learning-path-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

/* Docs List */
.docs-list-wrapper {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 32px;
}

.docs-list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.docs-list-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
}

.docs-list-title i { color: var(--gold); font-size: 1.3rem; }

.docs-list-actions {
    display: flex;
    gap: 4px;
    padding: 4px;
    background: var(--surface);
    border-radius: var(--radius-md);
}

.view-toggle-btn {
    padding: 8px 12px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    transition: all var(--transition);
}

.view-toggle-btn:hover { color: var(--text-primary); }
.view-toggle-btn.active {
    background: var(--card-bg);
    color: var(--gold);
    box-shadow: var(--shadow-sm);
}

/* Docs List Items */
.docs-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.doc-list-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 24px;
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition);
}

.doc-list-item:hover {
    background: var(--card-hover);
    border-color: var(--gold);
    transform: translateX(-4px);
    box-shadow: var(--shadow-sm);
}

[dir="ltr"] .doc-list-item:hover { transform: translateX(4px); }

.doc-list-item-number {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    display: grid;
    place-items: center;
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--gold);
    flex-shrink: 0;
    font-variant-numeric: tabular-nums;
}

.doc-list-item-content {
    flex: 1;
    min-width: 0;
}

.doc-list-item-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.doc-list-item-excerpt {
    font-size: 0.86rem;
    color: var(--text-muted);
    line-height: 1.5;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
}

.doc-list-item-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}

.doc-list-item-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.doc-list-item-meta-item i { font-size: 0.95rem; }

.doc-list-item-arrow {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    display: grid;
    place-items: center;
    color: var(--text-muted);
    font-size: 1.2rem;
    flex-shrink: 0;
    transition: all var(--transition);
}

.doc-list-item:hover .doc-list-item-arrow {
    background: var(--gold);
    border-color: var(--gold);
    color: #fff;
    transform: translateX(-4px);
}

[dir="ltr"] .doc-list-item:hover .doc-list-item-arrow { transform: translateX(4px); }

/* Grid view */
.docs-list.grid-view {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.docs-list.grid-view .doc-list-item {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
}

.docs-list.grid-view .doc-list-item-number {
    margin-bottom: 12px;
}

.docs-list.grid-view .doc-list-item-meta {
    margin-top: 12px;
    width: 100%;
    justify-content: space-between;
}

.docs-list.grid-view .doc-list-item-arrow {
    position: absolute;
    top: 20px;
    inset-inline-end: 20px;
}

.docs-list.grid-view .doc-list-item { position: relative; }

/* ============================================
   VIEW 3: DOCUMENT - Full Reading
   ============================================ */
.docs-view-document {
    padding: 90px 0 80px;
    position: relative;
}

/* Top Nav */
.doc-top-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    gap: 16px;
}

.doc-top-actions {
    display: flex;
    gap: 8px;
}

.doc-action-btn {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.2rem;
    display: grid;
    place-items: center;
    transition: all var(--transition);
}

.doc-action-btn:hover {
    border-color: var(--gold);
    color: var(--gold);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.doc-action-btn.active {
    background: var(--gold);
    border-color: var(--gold);
    color: #fff;
}

/* Reading Layout */
.doc-reading-layout {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
}

/* TOC Sidebar */
.doc-toc-sidebar {
    position: sticky;
    top: 100px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
}

.toc-sticky {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 20px;
}

.toc-heading {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--gold);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.toc-list {
    list-style: none;
    margin-bottom: 20px;
}

.toc-list li { margin-bottom: 2px; }

.toc-list a {
    display: block;
    padding: 6px 10px;
    border-inline-start: 2px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.84rem;
    transition: all var(--transition-fast);
    line-height: 1.5;
    border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
}

[dir="rtl"] .toc-list a { border-radius: var(--radius-xs) 0 0 var(--radius-xs); }

.toc-list a:hover {
    color: var(--text-primary);
    background: var(--surface);
}

.toc-list a.active {
    color: var(--gold);
    border-inline-start-color: var(--gold);
    background: rgba(247,147,26,0.06);
    font-weight: 600;
}

.toc-list a[data-level="h3"] {
    padding-inline-start: 22px;
    font-size: 0.82rem;
}

/* Reading Progress */
.toc-progress {
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.toc-progress-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 0.82rem;
    color: var(--text-secondary);
}

#progressPercent { color: var(--gold); font-weight: 700; }

.toc-progress-bar {
    height: 6px;
    background: var(--surface);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.toc-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--gold), var(--purple));
    border-radius: var(--radius-full);
    width: 0%;
    transition: width 0.1s ease;
}

/* Top Progress Bar */
.reading-progress-top {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--surface);
    z-index: 999;
    display: none;
}

.docs-view-document:not([hidden]) ~ .reading-progress-top,
[data-view="document"]:not([hidden]) + * .reading-progress-top {
    display: block;
}

.docs-page .reading-progress-top { display: block; }

.reading-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--gold), var(--purple));
    width: 0%;
    transition: width 0.1s ease;
}

/* Article Full */
.doc-article-full {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
}

/* Article Header */
.doc-article-header {
    padding: 56px 64px 40px;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.doc-article-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at top right, rgba(247,147,26,0.08), transparent 70%);
    pointer-events: none;
}

.doc-article-category {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: linear-gradient(135deg, rgba(247,147,26,0.12), rgba(168,85,247,0.08));
    border: 1px solid rgba(247,147,26,0.25);
    border-radius: var(--radius-full);
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--gold);
    margin-bottom: 20px;
}

.doc-article-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.doc-article-excerpt {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
    max-width: 700px;
}

.doc-article-meta {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.doc-meta-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    color: var(--text-muted);
}

.doc-meta-chip i { color: var(--gold); font-size: 1.1rem; }

/* Article Body - Open & Spacious */
.doc-article-body {
    padding: 56px 64px;
    font-size: 1.08rem;
    line-height: 2;
    color: var(--text-primary);
    max-width: 100%;
}

.doc-article-body > * + * {
    margin-top: 24px;
}

.doc-article-body h2 {
    font-size: 1.7rem;
    font-weight: 800;
    margin-top: 56px !important;
    margin-bottom: 20px !important;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    scroll-margin-top: 100px;
}

.doc-article-body h2::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 28px;
    background: linear-gradient(180deg, var(--gold), var(--purple));
    border-radius: var(--radius-xs);
    flex-shrink: 0;
}

.doc-article-body h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-top: 40px !important;
    margin-bottom: 16px !important;
    color: var(--text-primary);
    scroll-margin-top: 100px;
}

.doc-article-body h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-top: 32px !important;
    margin-bottom: 12px !important;
    color: var(--text-primary);
}

.doc-article-body p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 2;
}

.doc-article-body a {
    color: var(--gold);
    border-bottom: 1px dashed var(--gold);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.doc-article-body a:hover {
    border-bottom-style: solid;
}

.doc-article-body ul,
.doc-article-body ol {
    padding-inline-start: 0;
    margin-top: 16px !important;
    margin-bottom: 16px !important;
}

.doc-article-body ul li,
.doc-article-body ol li {
    position: relative;
    padding: 10px 0 10px 36px;
    color: var(--text-secondary);
    line-height: 1.8;
}

[dir="rtl"] .doc-article-body ul li,
[dir="rtl"] .doc-article-body ol li {
    padding: 10px 36px 10px 0;
}

.doc-article-body ul li::before {
    content: '';
    position: absolute;
    inset-inline-start: 10px;
    top: 18px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gold), var(--purple));
    box-shadow: 0 0 8px rgba(247,147,26,0.3);
}

.doc-article-body ol { counter-reset: doc-ol; }
.doc-article-body ol li { counter-increment: doc-ol; }

.doc-article-body ol li::before {
    content: counter(doc-ol);
    position: absolute;
    inset-inline-start: 0;
    top: 10px;
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--gold), var(--gold-hover));
    color: var(--text-inverted);
    border-radius: 50%;
    font-size: 0.82rem;
    font-weight: 700;
    display: grid;
    place-items: center;
    box-shadow: 0 2px 8px rgba(247,147,26,0.3);
}

.doc-article-body blockquote {
    margin: 32px 0 !important;
    padding: 24px 28px;
    background: linear-gradient(135deg, rgba(247,147,26,0.08), rgba(168,85,247,0.06));
    border-inline-start: 4px solid var(--gold);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    font-style: normal;
}

[dir="rtl"] .doc-article-body blockquote {
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.doc-article-body blockquote p {
    color: var(--text-primary);
    font-size: 1.05rem;
    margin: 0 !important;
}

.doc-article-body code {
    background: var(--surface);
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: var(--gold);
    border: 1px solid var(--border-color);
    direction: ltr;
    display: inline-block;
}

.doc-article-body pre {
    background: #0d1117;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin: 24px 0 !important;
    overflow: hidden;
    direction: ltr;
}

.doc-article-body pre code {
    display: block;
    padding: 24px 28px;
    background: none;
    border: none;
    color: #c9d1d9;
    font-size: 0.9rem;
    line-height: 1.7;
    overflow-x: auto;
}

.doc-article-body img {
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    margin: 32px 0 !important;
    box-shadow: var(--shadow);
}

/* Article Footer */
.doc-article-footer {
    padding: 32px 64px;
    background: var(--surface);
    border-top: 1px solid var(--border-color);
}

/* Tags */
.doc-article-tags {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.doc-tag-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.doc-tag {
    padding: 5px 14px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
}

.doc-tag:hover {
    background: var(--gold);
    color: #fff;
    border-color: var(--gold);
}

/* Feedback */
.doc-feedback {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 28px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    flex-wrap: wrap;
    gap: 16px;
}

.doc-feedback-text {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.doc-feedback-text span { color: var(--text-muted); font-weight: 400; }

.doc-feedback-buttons {
    display: flex;
    gap: 8px;
}

.doc-feedback-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition);
}

.doc-feedback-btn:hover {
    border-color: var(--gold);
    color: var(--gold);
    transform: translateY(-1px);
}

.doc-feedback-btn.active {
    background: var(--gold);
    color: #fff;
    border-color: var(--gold);
}

/* Prev / Next */
.doc-page-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 24px;
}

.doc-page-nav-link {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 20px 24px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.doc-page-nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    inset-inline-start: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--gold), var(--purple));
    opacity: 0;
    transition: opacity var(--transition);
}

.doc-page-nav-link:hover {
    border-color: var(--gold);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.doc-page-nav-link:hover::before { opacity: 1; }

.doc-page-nav-next { text-align: end; align-items: flex-end; }

.doc-page-nav-dir {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 500;
}

.doc-page-nav-title {
    font-weight: 700;
    font-size: 0.98rem;
    color: var(--text-primary);
    transition: color var(--transition);
}

.doc-page-nav-link:hover .doc-page-nav-title { color: var(--gold); }

/* ============================================
   Toast
   ============================================ */
.toast-container {
    position: fixed;
    top: 90px;
    inset-inline-end: 20px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-inline-start: 4px solid var(--green);
    border-radius: var(--radius-lg);
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 260px;
    box-shadow: var(--shadow-lg);
    animation: slideInRight 0.3s ease;
}

.toast i { font-size: 1.3rem; color: var(--green); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .doc-reading-layout {
        grid-template-columns: 1fr;
    }
    
    .doc-toc-sidebar {
        position: static;
        max-height: none;
        order: 2;
    }
    
    .doc-article-header,
    .doc-article-body,
    .doc-article-footer {
        padding-left: 32px;
        padding-right: 32px;
    }
}

@media (max-width: 768px) {
    .docs-home-hero { padding: 120px 0 60px; }
    .docs-home-title { font-size: 2rem; }
    
    .stats-bar-inner {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 24px;
    }
    
    .stat-divider { display: none; }
    
    .categories-grid { grid-template-columns: 1fr; }
    
    .category-hero {
        flex-direction: column;
        text-align: center;
        padding: 32px 24px;
    }
    
    .category-hero-stats { justify-content: center; }
    
    .doc-list-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .doc-list-item-meta { width: 100%; }
    
    .doc-article-header,
    .doc-article-body,
    .doc-article-footer {
        padding-left: 20px;
        padding-right: 20px;
    }
    
    .doc-article-title { font-size: 1.6rem; }
    .doc-article-body { font-size: 1rem; }
    
    .doc-page-nav { grid-template-columns: 1fr; }
    
    .learning-path-card {
        flex-direction: column;
        text-align: center;
    }
    
    .docs-popular-topics { flex-direction: column; gap: 10px; }
}

@media (max-width: 480px) {
    .docs-home-search { padding: 0 8px; }
    .docs-search-wrapper kbd { display: none; }
    
    .doc-top-nav {
        flex-direction: column;
        align-items: stretch;
    }
    
    .doc-top-actions {
        justify-content: flex-end;
    }
}

/* Print */
@media print {
    .doc-top-nav,
    .doc-toc-sidebar,
    .doc-top-actions,
    .doc-feedback,
    .doc-page-nav,
    .back-nav-btn,
    .reading-progress-top { display: none !important; }
    
    .doc-reading-layout { grid-template-columns: 1fr !important; }
    .doc-article-full { box-shadow: none; border: none; }
}