/* ============================================
   RTpipeline "Precision Dark" Theme
   A modern dark theme with blue accents
   Inspired by Vercel, Linear, and GitHub Dark
   ============================================ */

/* Modern Scientific Typography */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&display=swap');

/* ============================================
   ROOT VARIABLES - "Precision Dark" Palette
   ============================================ */
:root,
[data-md-color-scheme="slate"] {
    /* Typography */
    --md-text-font: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
    --md-code-font: "JetBrains Mono", "Fira Code", monospace;

    /* Backgrounds - Rich Slate spectrum (not pure black) */
    --md-default-bg-color: #0F172A;
    --md-default-bg-color--light: #1E293B;
    --md-default-bg-color--lighter: #334155;
    --md-default-bg-color--lightest: #475569;

    /* Text Colors */
    --md-default-fg-color: #F1F5F9;
    --md-default-fg-color--light: #CBD5E1;
    --md-default-fg-color--lighter: #94A3B8;
    --md-default-fg-color--lightest: #64748B;

    /* Primary Brand Color (Medical Blue) */
    --md-primary-fg-color: #0F172A;
    --md-primary-fg-color--light: #1E293B;
    --md-primary-fg-color--dark: #020617;
    --md-primary-bg-color: #F1F5F9;
    --md-primary-bg-color--light: #E2E8F0;

    /* Accent Colors (Sky Blue) */
    --md-accent-fg-color: #38BDF8;
    --md-accent-fg-color--transparent: rgba(56, 189, 248, 0.1);
    --md-accent-bg-color: #0EA5E9;
    --md-accent-bg-color--light: #7DD3FC;

    /* Code Blocks */
    --md-code-bg-color: #020617;
    --md-code-fg-color: #E2E8F0;
    --md-code-hl-color: rgba(56, 189, 248, 0.15);

    /* Typeset Links */
    --md-typeset-a-color: #38BDF8;

    /* Footer */
    --md-footer-bg-color: #020617;
    --md-footer-bg-color--dark: #000000;
    --md-footer-fg-color: #94A3B8;
    --md-footer-fg-color--light: #64748B;
    --md-footer-fg-color--lighter: #475569;

    /* Custom Variables */
    --rt-border-color: #334155;
    --rt-border-color-light: #475569;
    --rt-glow-blue: rgba(56, 189, 248, 0.15);
    --rt-glow-blue-strong: rgba(56, 189, 248, 0.3);
    --rt-hero-gradient: linear-gradient(135deg, #0F172A 0%, #172554 50%, #1E3A5F 100%);
    --rt-card-bg: #1E293B;
    --rt-card-hover-bg: #263548;
}

/* ============================================
   GLOBAL STYLES
   ============================================ */

/* Crisp text rendering for dark mode */
body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   HEADER & NAVIGATION (Glassmorphism)
   ============================================ */

[data-md-color-scheme="slate"] .md-header {
    background-color: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--rt-border-color);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

[data-md-color-scheme="slate"] .md-tabs {
    background-color: transparent;
    border-bottom: 1px solid var(--rt-border-color);
}

[data-md-color-scheme="slate"] .md-tabs__link {
    color: var(--md-default-fg-color--lighter);
    transition: color 0.2s ease;
}

[data-md-color-scheme="slate"] .md-tabs__link:hover,
[data-md-color-scheme="slate"] .md-tabs__link--active {
    color: var(--md-accent-fg-color);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

/* Gradient text effect on headings */
[data-md-color-scheme="slate"] .md-typeset h1 {
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #FFFFFF 0%, #38BDF8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-md-color-scheme="slate"] .md-typeset h2 {
    font-weight: 700;
    letter-spacing: -0.025em;
    color: #F8FAFC;
    border-bottom: 1px solid var(--rt-border-color);
    padding-bottom: 0.5rem;
}

[data-md-color-scheme="slate"] .md-typeset h3,
[data-md-color-scheme="slate"] .md-typeset h4 {
    font-weight: 600;
    letter-spacing: -0.02em;
    color: #E2E8F0;
}

/* Links with glow effect */
[data-md-color-scheme="slate"] .md-typeset a:not(.md-button) {
    color: var(--md-accent-fg-color);
    text-decoration: none;
    transition: all 0.2s ease;
}

[data-md-color-scheme="slate"] .md-typeset a:not(.md-button):hover {
    color: #7DD3FC;
    text-shadow: 0 0 12px var(--rt-glow-blue-strong);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero-container {
    position: relative;
    overflow: hidden;
    padding: 5rem 2rem;
    text-align: center;
    background:
        radial-gradient(ellipse at top right, rgba(56, 189, 248, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at bottom left, rgba(14, 165, 233, 0.1) 0%, transparent 50%),
        var(--rt-hero-gradient);
    color: white;
    margin: -1rem -1rem 2rem -1rem;
    border-bottom: 1px solid var(--rt-border-color);
}

/* Animated gradient overlay */
.hero-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(56, 189, 248, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(14, 165, 233, 0.08) 0%, transparent 40%);
    pointer-events: none;
    z-index: 1;
}

.hero-title,
.hero-subtitle,
.hero-buttons {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.1;
    letter-spacing: -0.04em;
    background: linear-gradient(135deg, #FFFFFF 0%, #38BDF8 50%, #0EA5E9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

.hero-subtitle {
    font-size: 1.4rem;
    font-weight: 400;
    color: #94A3B8;
    max-width: 700px;
    margin: 0 auto 2rem auto;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2.5rem;
    flex-wrap: wrap;
}

/* Hero Buttons */
.hero-buttons .md-button {
    padding: 0.8rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    text-decoration: none;
}

.hero-buttons .md-button--primary {
    background: linear-gradient(135deg, #0EA5E9 0%, #38BDF8 100%);
    color: #0F172A;
    border: none;
    box-shadow: 0 4px 14px rgba(56, 189, 248, 0.4);
}

.hero-buttons .md-button--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(56, 189, 248, 0.5);
}

.hero-buttons .md-button:not(.md-button--primary) {
    background: transparent;
    color: #F1F5F9;
    border: 1px solid var(--rt-border-color-light);
}

.hero-buttons .md-button:not(.md-button--primary):hover {
    border-color: var(--md-accent-fg-color);
    color: var(--md-accent-fg-color);
    background: rgba(56, 189, 248, 0.1);
}

/* ============================================
   CARDS & GRID
   ============================================ */

.grid.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.grid.cards > ul,
.grid.cards > ol {
    display: contents;
}

[data-md-color-scheme="slate"] .grid.cards > ul > li,
[data-md-color-scheme="slate"] .grid.cards > ol > li,
[data-md-color-scheme="slate"] .grid.cards > div {
    background: var(--rt-card-bg);
    border: 1px solid var(--rt-border-color);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

[data-md-color-scheme="slate"] .grid.cards > ul > li:hover,
[data-md-color-scheme="slate"] .grid.cards > ol > li:hover,
[data-md-color-scheme="slate"] .grid.cards > div:hover {
    transform: translateY(-4px);
    border-color: var(--md-accent-fg-color);
    box-shadow:
        0 8px 25px rgba(0, 0, 0, 0.3),
        0 0 20px var(--rt-glow-blue);
    background: var(--rt-card-hover-bg);
}

.grid.cards hr {
    margin: 1rem 0;
    border-bottom: none;
    border-top: 1px solid var(--rt-border-color);
}

/* Card icons */
[data-md-color-scheme="slate"] .grid.cards .twemoji,
[data-md-color-scheme="slate"] .grid.cards .emojione {
    color: var(--md-accent-fg-color);
}

/* ============================================
   TABLES (APA/Scientific Style)
   ============================================ */

[data-md-color-scheme="slate"] .md-typeset table:not([class]) {
    font-variant-numeric: tabular-nums;
    border-collapse: collapse;
    width: 100%;
    margin: 1.5em 0;
    background: var(--rt-card-bg);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--rt-border-color);
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) th {
    font-weight: 600;
    background: rgba(56, 189, 248, 0.1);
    color: var(--md-accent-fg-color);
    padding: 1em;
    text-align: left;
    border-bottom: 2px solid var(--rt-border-color);
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) td {
    padding: 0.875em 1em;
    border-bottom: 1px solid var(--rt-border-color);
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) tr:last-child td {
    border-bottom: none;
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) tr:hover {
    background: rgba(56, 189, 248, 0.05);
}

/* ============================================
   ADMONITIONS & DETAILS
   ============================================ */

[data-md-color-scheme="slate"] .md-typeset .admonition,
[data-md-color-scheme="slate"] .md-typeset details {
    background: var(--rt-card-bg);
    border: 1px solid var(--rt-border-color);
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

[data-md-color-scheme="slate"] .md-typeset .admonition-title,
[data-md-color-scheme="slate"] .md-typeset summary {
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--rt-border-color);
    font-weight: 600;
}

/* Warning admonition special styling */
[data-md-color-scheme="slate"] .md-typeset .admonition.warning {
    border-color: #F59E0B;
}

[data-md-color-scheme="slate"] .md-typeset .admonition.warning .admonition-title {
    background: rgba(245, 158, 11, 0.15);
}

/* ============================================
   CODE BLOCKS
   ============================================ */

[data-md-color-scheme="slate"] .md-typeset pre {
    background: var(--md-code-bg-color);
    border: 1px solid var(--rt-border-color);
    border-radius: 8px;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
}

[data-md-color-scheme="slate"] .md-typeset code {
    background: rgba(0, 0, 0, 0.3);
    color: #7DD3FC;
    padding: 0.15em 0.4em;
    border-radius: 4px;
    font-size: 0.875em;
}

[data-md-color-scheme="slate"] .md-typeset pre code {
    background: transparent;
    color: var(--md-code-fg-color);
    padding: 0;
}

/* ============================================
   SIDEBAR
   ============================================ */

[data-md-color-scheme="slate"] .md-sidebar {
    background: transparent;
}

[data-md-color-scheme="slate"] .md-sidebar__inner {
    padding-right: 1rem;
}

@media screen and (min-width: 76.25em) {
    [data-md-color-scheme="slate"] .md-sidebar--primary .md-sidebar__inner {
        border-right: 1px solid var(--rt-border-color);
    }
}

[data-md-color-scheme="slate"] .md-nav__link {
    color: var(--md-default-fg-color--lighter);
    transition: color 0.2s ease;
}

[data-md-color-scheme="slate"] .md-nav__link:hover {
    color: var(--md-accent-fg-color);
}

[data-md-color-scheme="slate"] .md-nav__link--active {
    color: var(--md-accent-fg-color);
    font-weight: 600;
}

/* ============================================
   SEARCH
   ============================================ */

[data-md-color-scheme="slate"] .md-search__form {
    background: var(--rt-card-bg);
    border: 1px solid var(--rt-border-color);
    border-radius: 8px;
}

[data-md-color-scheme="slate"] .md-search__form:hover {
    border-color: var(--md-accent-fg-color);
}

[data-md-color-scheme="slate"] .md-search__input {
    color: var(--md-default-fg-color);
}

[data-md-color-scheme="slate"] .md-search__input::placeholder {
    color: var(--md-default-fg-color--lightest);
}

/* ============================================
   FOOTER
   ============================================ */

[data-md-color-scheme="slate"] .md-footer {
    background: var(--md-footer-bg-color);
    border-top: 1px solid var(--rt-border-color);
}

/* ============================================
   MERMAID DIAGRAMS
   ============================================ */

[data-md-color-scheme="slate"] .mermaid {
    background: var(--rt-card-bg);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid var(--rt-border-color);
}

/* ============================================
   BUTTONS
   ============================================ */

[data-md-color-scheme="slate"] .md-button {
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

[data-md-color-scheme="slate"] .md-button--primary {
    background: linear-gradient(135deg, #0EA5E9 0%, #38BDF8 100%);
    color: #0F172A;
    border: none;
}

[data-md-color-scheme="slate"] .md-button--primary:hover {
    box-shadow: 0 4px 14px rgba(56, 189, 248, 0.4);
}

/* ============================================
   SCROLLBAR (WebKit browsers)
   ============================================ */

[data-md-color-scheme="slate"] ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

[data-md-color-scheme="slate"] ::-webkit-scrollbar-thumb {
    background: var(--rt-border-color);
    border-radius: 4px;
}

[data-md-color-scheme="slate"] ::-webkit-scrollbar-thumb:hover {
    background: var(--rt-border-color-light);
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */

@media screen and (max-width: 76.25em) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-container {
        padding: 3rem 1rem;
    }
}

@media screen and (max-width: 44.9375em) {
    .hero-title {
        font-size: 2rem;
    }

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

    .hero-buttons .md-button {
        width: 100%;
        max-width: 280px;
    }
}

/* ============================================
   LIGHT MODE OVERRIDES (for toggle)
   ============================================ */

[data-md-color-scheme="default"] .hero-container {
    background: linear-gradient(135deg, #1E40AF 0%, #3B82F6 50%, #60A5FA 100%);
}

[data-md-color-scheme="default"] .hero-title {
    background: linear-gradient(135deg, #FFFFFF 0%, #DBEAFE 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-md-color-scheme="default"] .hero-subtitle {
    color: rgba(255, 255, 255, 0.9);
}