/* ============================================
   MuDevs Lua API — Custom Theme
   Aligned with mudevs.com visual identity
   ============================================ */

/* --- Color Scheme: MuDevs Dark --- */
[data-md-color-scheme="mudevs"] {
    --md-primary-fg-color: #5d4aff;
    --md-primary-fg-color--light: #7c6bff;
    --md-primary-fg-color--dark: #4535cc;
    --md-primary-bg-color: #fafafa;
    --md-accent-fg-color: #4fb3d4;
    --md-accent-fg-color--transparent: rgba(79, 179, 212, 0.12);
    --md-default-bg-color: #0a0a0a;
    --md-default-bg-color--light: #121230;
    --md-default-bg-color--lighter: #1a1a3e;
    --md-default-fg-color: #e8e8f5;
    --md-default-fg-color--light: #b0b0cc;
    --md-default-fg-color--lighter: #8888aa;
    --md-default-fg-color--lightest: #2d2d50;
    --md-code-bg-color: #0f172a;
    --md-code-fg-color: #e2e8f0;
    --md-code-hl-color: rgba(93, 74, 255, 0.15);
    --md-code-hl-number-color: #f59e0b;
    --md-code-hl-string-color: #10b981;
    --md-code-hl-keyword-color: #8b5cf6;
    --md-code-hl-function-color: #3b82f6;
    --md-code-hl-comment-color: #6b7280;
    --md-code-hl-operator-color: #ef4444;
    --md-code-hl-variable-color: #06b6d4;
    --md-code-hl-constant-color: #f97316;
    --md-code-hl-special-color: #ec4899;
    --md-typeset-color: #e8e8f5;
    --md-typeset-a-color: #7c6bff;
    --md-typeset-table-color: rgba(255, 255, 255, 0.04);
    --md-typeset-table-color--light: rgba(255, 255, 255, 0.02);
    --md-footer-bg-color: #060612;
    --md-footer-bg-color--dark: #040410;
    --md-footer-fg-color: #b0b0cc;
    --md-footer-fg-color--light: #8888aa;
    --md-footer-fg-color--lighter: #666688;
    --md-shadow-z1: 0 2px 8px rgba(0, 0, 0, 0.4);
    --md-shadow-z2: 0 4px 16px rgba(0, 0, 0, 0.5);
    --md-shadow-z3: 0 8px 32px rgba(0, 0, 0, 0.6);
    color-scheme: dark;
}

/* Header */
[data-md-color-scheme="mudevs"] .md-header {
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid #2d2d50;
}

/* Tabs */
[data-md-color-scheme="mudevs"] .md-tabs {
    background: rgba(10, 10, 10, 0.6);
    border-bottom: 1px solid #1e1e40;
}

/* Sidebar */
[data-md-color-scheme="mudevs"] .md-sidebar {
    border-right: 1px solid #1e1e40;
}

[data-md-color-scheme="mudevs"] .md-nav__link--active,
[data-md-color-scheme="mudevs"] .md-nav__link:is(:focus, :hover) {
    color: #7c6bff;
}

/* Search */
[data-md-color-scheme="mudevs"] .md-search__form {
    background: #121230;
    border: 1px solid #2d2d50;
}

[data-md-color-scheme="mudevs"] .md-search__input::placeholder {
    color: #6666aa;
}

/* Announcement bar */
[data-md-color-scheme="mudevs"] .md-banner {
    background: linear-gradient(90deg, #5d4aff, #4fb3d4);
    color: #fff;
}

[data-md-color-scheme="mudevs"] .md-banner a {
    color: #fff;
    font-weight: 600;
}

/* --- Typography --- */
.md-typeset h1 {
    font-weight: 800;
    letter-spacing: -0.02em;
}

.md-typeset h2 {
    font-weight: 700;
    letter-spacing: -0.01em;
    border-bottom: 1px solid var(--md-default-fg-color--lightest);
    padding-bottom: 0.4rem;
}

.md-typeset h3 {
    font-weight: 600;
}

/* Function signatures in h3 */
h3 code,
.md-typeset h3 code {
    font-size: 0.82em;
    background: var(--md-code-bg-color);
    padding: 0.3rem 0.7rem;
    border-radius: 6px;
    border: 1px solid rgba(93, 74, 255, 0.25);
    font-weight: 500;
    color: #c4b5fd;
}

/* --- Code Blocks --- */
.md-typeset pre {
    border-radius: 8px;
    border: 1px solid rgba(45, 45, 80, 0.6);
}

.md-typeset code {
    border-radius: 4px;
    font-size: 0.85em;
}

/* Inline code */
[data-md-color-scheme="mudevs"] .md-typeset :not(pre) > code {
    background: rgba(93, 74, 255, 0.1);
    color: #c4b5fd;
    border: 1px solid rgba(93, 74, 255, 0.15);
    padding: 0.1rem 0.4rem;
}

/* Copy button */
[data-md-color-scheme="mudevs"] .md-typeset .highlight .copy {
    border-radius: 6px;
    color: #8888aa;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

[data-md-color-scheme="mudevs"] .md-typeset .highlight .copy:hover {
    color: #e8e8f5;
    background: rgba(93, 74, 255, 0.2);
    border-color: rgba(93, 74, 255, 0.3);
}

/* Code block line numbers */
[data-md-color-scheme="mudevs"] .md-typeset .highlight .linenodiv pre {
    color: #4a4a6a;
}

/* Description text below function signatures */
[data-md-color-scheme="mudevs"] .md-typeset > p {
    color: #c8c8e0;
}

/* Parameter lists */
[data-md-color-scheme="mudevs"] .md-typeset li {
    color: #c0c0d8;
}

/* Bold text in descriptions */
[data-md-color-scheme="mudevs"] .md-typeset strong {
    color: #e8e8f5;
}

/* Horizontal rules between functions */
[data-md-color-scheme="mudevs"] .md-typeset hr {
    border-color: rgba(45, 45, 80, 0.5);
}

/* TOC right sidebar */
[data-md-color-scheme="mudevs"] .md-typeset .md-nav__link {
    font-size: 0.72rem;
}

/* --- Tables --- */
.md-typeset table:not([class]) {
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--md-default-fg-color--lightest);
    font-size: 0.85rem;
}

.md-typeset table:not([class]) th {
    min-width: 100px;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

.md-typeset table:not([class]) td,
.md-typeset table:not([class]) th {
    border-color: var(--md-default-fg-color--lightest);
}

/* --- Admonitions --- */
[data-md-color-scheme="mudevs"] .md-typeset .admonition,
[data-md-color-scheme="mudevs"] .md-typeset details {
    border-radius: 8px;
    border: 1px solid var(--md-default-fg-color--lightest);
    background: var(--md-default-bg-color--light);
    color: #d0d0e8;
}

[data-md-color-scheme="mudevs"] .md-typeset .admonition p,
[data-md-color-scheme="mudevs"] .md-typeset details p {
    color: #c8c8e0;
}

[data-md-color-scheme="mudevs"] .md-typeset .admonition code,
[data-md-color-scheme="mudevs"] .md-typeset details code {
    color: #e2e8f0;
    background: rgba(15, 23, 42, 0.6);
}

/* Admonition title text */
[data-md-color-scheme="mudevs"] .md-typeset .admonition .admonition-title,
[data-md-color-scheme="mudevs"] .md-typeset details summary {
    color: #e8e8f5;
}

/* Table text inside dark theme */
[data-md-color-scheme="mudevs"] .md-typeset table:not([class]) td {
    color: #c8c8e0;
}

/* Nav sidebar text */
[data-md-color-scheme="mudevs"] .md-nav__link {
    color: #b0b0cc;
}

/* TOC text */
[data-md-color-scheme="mudevs"] .md-sidebar--secondary .md-nav__link {
    color: #9898bb;
}

[data-md-color-scheme="mudevs"] .md-sidebar--secondary .md-nav__link--active {
    color: #7c6bff;
}

/* Search results */
[data-md-color-scheme="mudevs"] .md-search-result__meta {
    color: #8888aa;
}

[data-md-color-scheme="mudevs"] .md-search-result__title {
    color: #e8e8f5;
}

[data-md-color-scheme="mudevs"] .md-search-result__teaser {
    color: #b0b0cc;
}

/* Footer navigation text */
[data-md-color-scheme="mudevs"] .md-footer-nav__title {
    color: #8888aa;
}

[data-md-color-scheme="mudevs"] .md-footer-nav__direction {
    color: #6666aa;
}

/* --- Cards (Landing Page) --- */
.grid.cards > ul {
    list-style: none;
    padding: 0;
}

.grid.cards > ul > li {
    border: 1px solid var(--md-default-fg-color--lightest);
    border-radius: 12px;
    padding: 1.2rem 1.4rem;
    transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.grid.cards > ul > li:hover {
    border-color: var(--md-primary-fg-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(93, 74, 255, 0.12);
}

/* --- Hero Section (Landing Page) --- */
.hero-section {
    text-align: center;
    padding: 3rem 0 2rem;
}

.hero-section h1 {
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #7c6bff 0%, #4fb3d4 50%, #10b981 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-section .hero-subtitle {
    font-size: 1.15rem;
    color: var(--md-default-fg-color--light);
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.6;
}

.hero-badges {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 1rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid var(--md-default-fg-color--lightest);
    background: var(--md-default-bg-color--light);
    color: var(--md-default-fg-color--light);
    transition: border-color 0.2s ease;
}

.hero-badge:hover {
    border-color: var(--md-primary-fg-color);
}

.hero-badge-purple { border-color: rgba(93, 74, 255, 0.4); color: #9b8bff; }
.hero-badge-cyan { border-color: rgba(79, 179, 212, 0.4); color: #7dd3e8; }
.hero-badge-green { border-color: rgba(16, 185, 129, 0.4); color: #4dd8a4; }

/* CTA Buttons */
.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.hero-cta a.md-button {
    padding: 0.7rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.25s ease;
}

.hero-cta a.md-button--primary {
    background: linear-gradient(135deg, #5d4aff, #7c6bff);
    color: #fff;
    border: none;
}

.hero-cta a.md-button--primary:hover {
    background: linear-gradient(135deg, #7c6bff, #9b8bff);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(93, 74, 255, 0.35);
}

.hero-cta a.md-button--secondary {
    background: transparent;
    color: var(--md-default-fg-color);
    border: 1px solid var(--md-default-fg-color--lightest);
}

.hero-cta a.md-button--secondary:hover {
    border-color: var(--md-accent-fg-color);
    color: var(--md-accent-fg-color);
}

/* --- Stats Bar --- */
.stats-bar {
    display: flex;
    justify-content: center;
    gap: 3rem;
    padding: 1.5rem 0;
    margin: 2rem 0;
    border-top: 1px solid var(--md-default-fg-color--lightest);
    border-bottom: 1px solid var(--md-default-fg-color--lightest);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--md-primary-fg-color);
    line-height: 1;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--md-default-fg-color--lighter);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 0.25rem;
}

/* --- Version Badges --- */
.version-badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    margin-right: 0.3rem;
    letter-spacing: 0.02em;
}

.version-badge-yes {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.version-badge-no {
    background: rgba(107, 114, 128, 0.15);
    color: #6b7280;
    border: 1px solid rgba(107, 114, 128, 0.3);
}

/* --- Feature Grid --- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.2rem;
    margin: 2rem 0;
}

.feature-card {
    display: block;
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--md-default-fg-color--lightest);
    background: var(--md-default-bg-color--light);
    transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
    text-decoration: none;
    color: var(--md-default-fg-color);
}

.feature-card:hover {
    border-color: var(--md-primary-fg-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(93, 74, 255, 0.12);
    text-decoration: none;
    color: var(--md-default-fg-color);
}

.feature-card-icon {
    font-size: 1.8rem;
    margin-bottom: 0.75rem;
}

.feature-card-title {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 0.4rem;
}

.feature-card-desc {
    font-size: 0.85rem;
    color: var(--md-default-fg-color--light);
    line-height: 1.5;
}

/* --- API Category Cards (Server API index) --- */
.api-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.api-card {
    display: block;
    padding: 1rem 1.2rem;
    border-radius: 10px;
    border: 1px solid var(--md-default-fg-color--lightest);
    background: var(--md-default-bg-color--light);
    text-decoration: none;
    color: var(--md-default-fg-color);
    transition: all 0.2s ease;
}

.api-card:hover {
    border-color: var(--md-primary-fg-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(93, 74, 255, 0.1);
    text-decoration: none;
    color: var(--md-default-fg-color);
}

.api-card-title {
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
}

.api-card-count {
    font-size: 0.75rem;
    color: var(--md-default-fg-color--lighter);
}

/* --- Playground example selector --- */
.playground-examples {
    margin-bottom: 0.5rem;
}

.playground-examples select {
    background: var(--md-code-bg-color);
    color: var(--md-default-fg-color);
    border: 1px solid var(--md-default-fg-color--lightest);
    border-radius: 6px;
    padding: 0.4rem 0.8rem;
    font-size: 0.82rem;
    font-family: inherit;
    outline: none;
    cursor: pointer;
}

.playground-examples select:focus {
    border-color: var(--md-primary-fg-color);
}

/* --- Playground --- */
.playground-container {
    display: flex;
    flex-direction: column;
    gap: 0;
    border: 1px solid var(--md-default-fg-color--lightest);
    border-radius: 12px;
    overflow: hidden;
    margin: 1rem 0;
    max-width: 100%;
}

.playground-editor {
    display: flex;
    flex-direction: column;
}

.playground-toolbar {
    display: flex;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: var(--md-code-bg-color);
    border-bottom: 1px solid var(--md-default-fg-color--lightest);
}

.playground-btn {
    padding: 0.4rem 1rem;
    border: 1px solid var(--md-default-fg-color--lightest);
    border-radius: 6px;
    background: var(--md-default-bg-color);
    color: var(--md-default-fg-color);
    cursor: pointer;
    font-size: 0.8rem;
    font-family: inherit;
    transition: all 0.2s ease;
}

.playground-btn:hover {
    background: var(--md-accent-fg-color);
    color: white;
    border-color: var(--md-accent-fg-color);
}

.playground-btn-run {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    border-color: #10b981;
    font-weight: 700;
}

.playground-btn-run:hover {
    background: linear-gradient(135deg, #059669, #047857);
    border-color: #059669;
}

#lua-editor {
    width: 100%;
    min-height: 500px;
    padding: 1rem;
    border: none;
    font-family: 'Roboto Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
    background: var(--md-code-bg-color);
    color: var(--md-code-fg-color);
    resize: vertical;
    tab-size: 4;
    outline: none;
    box-sizing: border-box;
}

.playground-output {
    border-top: 2px solid var(--md-primary-fg-color);
}

.playground-output-header {
    padding: 0.5rem 1rem;
    background: var(--md-code-bg-color);
    font-weight: 700;
    font-size: 0.75rem;
    color: var(--md-default-fg-color--lighter);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

#lua-output {
    min-height: 200px;
    max-height: 500px;
    overflow-y: auto;
    padding: 0.75rem 1rem;
    margin: 0;
    background: #0a0a1e;
    color: #e0e0e0;
    font-family: 'Roboto Mono', 'Consolas', monospace;
    font-size: 0.82rem;
    line-height: 1.5;
}

#lua-output .error {
    color: #ef4444;
}

#lua-output .dim {
    color: #6b7280;
    font-style: italic;
}

/* Warning lines */
.warning-line {
    color: #f59e0b;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
    padding: 0.15rem 0;
}

.warning-docs-btn {
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: 4px;
    padding: 0.1rem 0.5rem;
    font-size: 0.72rem;
    font-family: inherit;
    cursor: pointer;
    margin-left: 0.5rem;
    transition: all 0.2s ease;
}

.warning-docs-btn:hover {
    background: rgba(245, 158, 11, 0.3);
    border-color: #f59e0b;
}

/* Docs popup */
.warning-popup {
    width: 100%;
    margin-top: 0.4rem;
    background: #1e1b4b;
    border: 1px solid rgba(93, 74, 255, 0.4);
    border-radius: 8px;
    padding: 0.8rem 1rem;
    font-size: 0.8rem;
    color: #e8e8f5;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.warning-popup .wp-title {
    font-weight: 700;
    font-size: 0.9rem;
    color: #c4b5fd;
    margin-bottom: 0.4rem;
}

.warning-popup .wp-sig {
    margin-bottom: 0.4rem;
}

.warning-popup .wp-sig code {
    background: rgba(93, 74, 255, 0.15);
    color: #c4b5fd;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.82rem;
    border: 1px solid rgba(93, 74, 255, 0.2);
}

.warning-popup .wp-desc {
    color: #c8c8e0;
    line-height: 1.5;
    margin-bottom: 0.3rem;
}

.warning-popup .wp-ret {
    color: #8888aa;
    font-size: 0.78rem;
    margin-bottom: 0.5rem;
}

.warning-popup .wp-ret code {
    color: #10b981;
    background: none;
    padding: 0;
}

.warning-popup .wp-link {
    display: inline-block;
    color: #7c6bff;
    font-size: 0.78rem;
    text-decoration: none;
    font-weight: 600;
}

.warning-popup .wp-link:hover {
    color: #9b8bff;
    text-decoration: underline;
}


/* --- Responsive --- */
@media (min-width: 960px) {
    .playground-container {
        flex-direction: row;
    }

    .playground-editor {
        flex: 1;
    }

    .playground-output {
        flex: 1;
        border-top: none;
        border-left: 2px solid var(--md-primary-fg-color);
    }

    #lua-editor {
        min-height: 550px;
    }
}

@media (max-width: 600px) {
    .hero-section h1 {
        font-size: 1.8rem;
    }

    .stats-bar {
        gap: 1.5rem;
    }

    .stat-number {
        font-size: 1.3rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

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

/* --- Scrollbar (dark theme) --- */
[data-md-color-scheme="mudevs"] ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

[data-md-color-scheme="mudevs"] ::-webkit-scrollbar-track {
    background: var(--md-default-bg-color);
}

[data-md-color-scheme="mudevs"] ::-webkit-scrollbar-thumb {
    background: #2d2d50;
    border-radius: 4px;
}

[data-md-color-scheme="mudevs"] ::-webkit-scrollbar-thumb:hover {
    background: #3d3d60;
}

/* --- Footer --- */
[data-md-color-scheme="mudevs"] .md-footer {
    border-top: 1px solid #1e1e40;
}

/* --- WhatsApp help button --- */
.wa-help-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: #25d366;
    color: #fff;
    text-decoration: none;
    padding: 0.6rem 1.1rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35);
    transition: all 0.25s ease;
}

.wa-help-btn:hover {
    background: #1fb855;
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.45);
    color: #fff;
    text-decoration: none;
}

.wa-help-btn svg {
    width: 20px;
    height: 20px;
    fill: #fff;
}

@media (max-width: 600px) {
    .wa-help-btn span {
        display: none;
    }

    .wa-help-btn {
        padding: 0.7rem;
        border-radius: 50%;
    }
}

/* Keyboard keys */
[data-md-color-scheme="mudevs"] .md-typeset .keys kbd {
    background: #1e1e40;
    color: #c8c8e0;
    border-color: #2d2d50;
    box-shadow: 0 1px 0 #2d2d50;
}

/* --- Smooth transitions --- */
.md-typeset a {
    transition: color 0.2s ease;
}

.md-nav__link {
    transition: color 0.15s ease;
}