/* Override Dokka logo with VideoSDK icon */
:root {
    --dokka-logo-image-url: url('../images/logo-icon.png');
}

/* ============================================================
   Custom left sidebar navigation — category-grouped layout
   Replaces Dokka's default package-based navigation.
   Inspired by Ktor documentation sidebar.
   ============================================================ */

/* Nav container */
.custom-sidebar-nav {
    padding: 8px 0;
    font-size: 16px;
    line-height: 1.5;
}

/* Section (category group) */
.sidebar-section {
    margin-bottom: 2px;
}

/* Section header (clickable to collapse/expand) */
.sidebar-section__header {
    display: flex;
    align-items: center;
    padding: 7px 14px;
    cursor: pointer;
    user-select: none;
    font-weight: 600;
    font-size: 16px;
    color: var(--default-font-color, #1a1a1a);
    border-radius: 4px;
    transition: background 0.15s;
}

.sidebar-section__header:hover {
    background: rgba(37, 99, 235, 0.08);
}

/* Collapse arrow */
.sidebar-section__arrow {
    display: inline-block;
    width: 22px;
    font-size: 18px;
    text-align: center;
    margin-right: 6px;
    transition: transform 0.2s;
    color: var(--default-font-color, #6b7280);
}

.sidebar-section--collapsed .sidebar-section__arrow {
    transform: rotate(-90deg);
}

/* Section title */
.sidebar-section__title {
    flex: 1;
}

/* Items container */
.sidebar-section__items {
    overflow: hidden;
    max-height: 2000px;
    transition: max-height 0.25s ease-in-out;
}

.sidebar-section--collapsed .sidebar-section__items {
    max-height: 0;
}

/* Individual item link */
.sidebar-item {
    display: block;
    padding: 4px 14px 4px 34px;
    color: var(--default-font-color, #4b5563);
    text-decoration: none;
    font-size: 16px;
    font-weight: 400;
    border-radius: 4px;
    margin: 0 4px;
    transition: background 0.15s, color 0.15s;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sidebar-item:hover {
    background: rgba(37, 99, 235, 0.1);
    color: #2563eb;
    text-decoration: none;
}

/* Active item */
.sidebar-item--active {
    background: rgba(37, 99, 235, 0.1) !important;
    color: var(--default-font-color, #1a1a1a) !important;
    font-weight: 600;
    border-left: 3px solid var(--active-tab-border-color, #2563eb);
    padding-left: 31px;
}

.sidebar-item--active:hover {
    background: rgba(37, 99, 235, 0.15) !important;
    color: var(--default-font-color, #1a1a1a) !important;
}

/* ============================================================
   Dark mode
   ============================================================ */

.theme-dark .sidebar-section__header {
    color: #e5e7eb;
}

.theme-dark .sidebar-section__header:hover {
    background: rgba(255, 255, 255, 0.06);
}

.theme-dark .sidebar-section__arrow {
    color: #9ca3af;
}

.theme-dark .sidebar-item {
    color: #9ca3af;
}

.theme-dark .sidebar-item:hover {
    background: rgba(255, 255, 255, 0.06);
    color: #60a5fa;
}

.theme-dark .sidebar-item--active {
    background: rgba(59, 130, 246, 0.15) !important;
    color: #e5e7eb !important;
    border-left-color: #3b82f6;
}

.theme-dark .sidebar-item--active:hover {
    background: rgba(59, 130, 246, 0.25) !important;
    color: #f3f4f6 !important;
}

/* ============================================================
   Welcome page styles
   ============================================================ */

.welcome-hero {
    padding: 32px 0 24px 0;
    border-bottom: 1px solid var(--border-color, #e5e7eb);
    margin-bottom: 32px;
}

.welcome-hero h1 {
    font-size: 30px;
    font-weight: 700;
    margin: 0 0 8px 0;
    color: var(--default-font-color, #111827);
}

.welcome-hero .welcome-version {
    display: inline-block;
    background: #2563eb;
    color: #ffffff;
    font-size: 14px;
    font-weight: 600;
    padding: 2px 12px;
    border-radius: 6px;
    margin-left: 10px;
    vertical-align: middle;
    transform: translateY(1px);
}

.welcome-hero p {
    font-size: 17px;
    color: var(--average-color, #6b7280);
    margin: 12px 0 0 0;
    line-height: 1.6;
}

/* Category cards grid */
.welcome-categories {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.welcome-card {
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 8px;
    padding: 20px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.welcome-card:hover {
    border-color: var(--active-tab-border-color, #2563eb);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.welcome-card h3 {
    font-size: 17px;
    font-weight: 600;
    margin: 0 0 8px 0;
    color: var(--default-font-color, #111827);
}

.welcome-card p {
    font-size: 15px;
    color: var(--average-color, #6b7280);
    margin: 0 0 12px 0;
    line-height: 1.5;
}

.welcome-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.welcome-card ul li {
    margin: 0;
    padding: 0;
}

.welcome-card ul li a {
    display: block;
    padding: 3px 0;
    font-size: 15px;
    color: #2563eb;
    text-decoration: none;
}

.welcome-card ul li a:hover {
    text-decoration: underline;
}

/* Installation section */
.welcome-install {
    background: var(--background-color, #f9fafb);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 32px;
}

.welcome-install h2 {
    font-size: 20px;
    font-weight: 600;
    margin: 0 0 12px 0;
}

.welcome-install p {
    font-size: 15px;
    color: var(--default-font-color, #374151);
    margin: 0 0 12px 0;
    line-height: 1.6;
}

.welcome-install code {
    font-family: 'JetBrains Mono', monospace;
    background: rgba(0, 0, 0, 0.06);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 15px;
}

.welcome-install .install-filename {
    font-family: 'JetBrains Mono', monospace;
    font-size: 15px;
    color: var(--default-font-color, #6b7280);
    background: #e8e8e8;
    display: inline-block;
    padding: 4px 12px;
    border-radius: 6px 6px 0 0;
    margin-bottom: -1px;
    position: relative;
    z-index: 1;
}

.welcome-install .sample-container {
    position: relative;
}

.welcome-install pre {
    background: #f5f5f5;
    color: #2b2b2b;
    padding: 20px 24px;
    border-radius: 0 8px 8px 8px;
    overflow-x: auto;
    font-size: 15px;
    line-height: 1.7;
    border: 1px solid #e0e0e0;
    margin: 0 0 12px 0;
}

.welcome-install .token.comment { color: #8c8c8c; }
.welcome-install .token.keyword { color: #0033b3; }
.welcome-install .token.string { color: #067d17; }
.welcome-install .token.function { color: #00627a; }

.welcome-install .install-note {
    font-size: 15px;
    color: var(--default-font-color, #6b7280);
    margin: 0;
}

.welcome-install .install-note a {
    color: #2563eb;
    text-decoration: none;
}

.welcome-install .install-note a:hover {
    text-decoration: underline;
}

/* Dark mode - Installation */
.theme-dark .welcome-install {
    background: var(--background-color, #1f2937);
    border-color: #374151;
}

.theme-dark .welcome-install code {
    background: rgba(255, 255, 255, 0.1);
}

.theme-dark .welcome-install .install-filename {
    background: #383a3e;
    color: #a9b7c6;
}

.theme-dark .welcome-install pre {
    background: #27282c;
    color: #a9b7c6;
    border-color: #383a3e;
}

.theme-dark .welcome-install .token.comment { color: #808080; }
.theme-dark .welcome-install .token.keyword { color: #cc7832; }
.theme-dark .welcome-install .token.string { color: #6a8759; }
.theme-dark .welcome-install .token.function { color: #ffc66d; }

.theme-dark .welcome-install .install-note a {
    color: #60a5fa;
}

/* Quick start section */
.welcome-quickstart {
    background: var(--background-color, #f9fafb);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 32px;
}

.welcome-quickstart h2 {
    font-size: 20px;
    font-weight: 600;
    margin: 0 0 16px 0;
}

.welcome-quickstart .sample-container {
    position: relative;
}

.welcome-quickstart pre {
    background: #f5f5f5;
    color: #2b2b2b;
    padding: 20px 24px;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 15px;
    line-height: 1.7;
    border: 1px solid #e0e0e0;
    margin: 0;
}

.welcome-quickstart code {
    font-family: 'JetBrains Mono', monospace;
}

/* Light mode syntax colors (IntelliJ Light) */
.welcome-quickstart .token.comment { color: #8c8c8c; }
.welcome-quickstart .token.keyword { color: #0033b3; }
.welcome-quickstart .token.string { color: #067d17; }
.welcome-quickstart .token.function { color: #00627a; }
.welcome-quickstart .token.class-name { color: #000000; }
.welcome-quickstart .token.number { color: #1750eb; }
.welcome-quickstart .token.boolean { color: #0033b3; }
.welcome-quickstart .token.punctuation { color: #999; }

/* Dark mode code block */
.theme-dark .welcome-quickstart pre {
    background: #27282c;
    color: #a9b7c6;
    border-color: #383a3e;
}

.theme-dark .welcome-quickstart .token.comment { color: #808080; }
.theme-dark .welcome-quickstart .token.keyword { color: #cc7832; }
.theme-dark .welcome-quickstart .token.string { color: #6a8759; }
.theme-dark .welcome-quickstart .token.function { color: #ffc66d; }
.theme-dark .welcome-quickstart .token.class-name { color: #a9b7c6; }
.theme-dark .welcome-quickstart .token.number { color: #6897bb; }
.theme-dark .welcome-quickstart .token.boolean { color: #cc7832; }
.theme-dark .welcome-quickstart .token.punctuation { color: #a9b7c6; }

/* Dark mode for welcome page */
.theme-dark .welcome-hero {
    border-bottom-color: #374151;
}

.theme-dark .welcome-hero h1 {
    color: #f3f4f6;
}

.theme-dark .welcome-hero p {
    color: #d1d5db;
}

.theme-dark .welcome-card p {
    color: #d1d5db;
}

.theme-dark .welcome-card {
    border-color: #374151;
    background: rgba(255, 255, 255, 0.02);
}

.theme-dark .welcome-card:hover {
    border-color: #3b82f6;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.theme-dark .welcome-card h3 {
    color: #f3f4f6;
}

.theme-dark .welcome-heading {
    color: #f3f4f6;
}

.theme-dark .welcome-quickstart {
    background: rgba(255, 255, 255, 0.03);
    border-color: #374151;
}