/* ============================================
   REVELION DOCS — Tactical Dark Theme
   Matches app.revelion.ai aesthetic
   ============================================ */

/* --- Oxanium (Revelion brand font) for headings --- */
@import url('https://fonts.googleapis.com/css2?family=Oxanium:wght@400;500;600;700;800&display=swap');

/* --- Core palette --- */
:root {
  --md-primary-fg-color: #0B0D10;
  --md-primary-fg-color--light: #12151C;
  --md-primary-fg-color--dark: #080a0d;
  --md-accent-fg-color: #B11226;
  --rvl-red: #B11226;
  --rvl-red-glow: rgba(177, 18, 38, 0.15);
  --rvl-red-hover: #d41b32;
  --rvl-bg: #0B0D10;
  --rvl-surface: #12151C;
  --rvl-surface-hover: #161a24;
  --rvl-border: rgba(148, 163, 184, 0.08);
  --rvl-border-hover: rgba(148, 163, 184, 0.15);
  --rvl-text: #e2e8f0;
  --rvl-text-muted: #64748b;
  --rvl-text-dim: #475569;
}

/* --- Slate scheme --- */
[data-md-color-scheme="slate"] {
  --md-default-bg-color: var(--rvl-bg);
  --md-default-fg-color: var(--rvl-text);
  --md-default-fg-color--light: #94a3b8;
  --md-default-fg-color--lighter: var(--rvl-text-muted);
  --md-default-fg-color--lightest: rgba(255, 255, 255, 0.04);
  --md-primary-fg-color: var(--rvl-bg);
  --md-primary-bg-color: var(--rvl-text);
  --md-accent-fg-color: var(--rvl-red);
  --md-typeset-color: var(--rvl-text);
  --md-typeset-a-color: var(--rvl-red);
  --md-code-bg-color: #0a0c0f;
  --md-code-fg-color: #e2e8f0;
  --md-code-hl-color: var(--rvl-red-glow);
  --md-footer-bg-color: #060709;
  --md-footer-bg-color--dark: #040506;
}

/* ============================================
   HEADER — Subtle red glow underneath
   ============================================ */
.md-header {
  background: var(--rvl-bg);
  border-bottom: 1px solid var(--rvl-border);
  box-shadow: 0 1px 20px rgba(177, 18, 38, 0.04);
}

.md-header__title {
  font-family: 'Oxanium', sans-serif;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.85rem;
}

.md-header__topic {
  font-family: 'Oxanium', sans-serif;
}

.md-header[data-md-state="shadow"] {
  box-shadow: 0 2px 30px rgba(0, 0, 0, 0.5), 0 1px 10px rgba(177, 18, 38, 0.06);
}

/* ============================================
   TABS — Uppercase tactical with red active
   ============================================ */
.md-tabs {
  background: var(--rvl-bg);
  border-bottom: 1px solid var(--rvl-border);
}

.md-tabs__link {
  font-family: 'Oxanium', sans-serif;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.4;
  transition: all 0.2s ease;
}

.md-tabs__link:hover {
  opacity: 0.8;
}

.md-tabs__link--active {
  opacity: 1;
  color: var(--rvl-red) !important;
}

/* ============================================
   NAVIGATION SIDEBAR
   ============================================ */
[data-md-color-scheme="slate"] .md-sidebar {
  background: var(--rvl-bg);
}

[data-md-color-scheme="slate"] .md-nav__link {
  font-size: 0.78rem;
  color: var(--rvl-text-muted);
  transition: all 0.15s ease;
  border-left: 2px solid transparent;
  padding-left: 0.6em;
}

[data-md-color-scheme="slate"] .md-nav__link:hover {
  color: var(--rvl-text);
  border-left-color: rgba(177, 18, 38, 0.3);
}

[data-md-color-scheme="slate"] .md-nav__link--active,
[data-md-color-scheme="slate"] .md-nav__item--active > .md-nav__link {
  color: var(--rvl-red);
  font-weight: 600;
  border-left-color: var(--rvl-red);
}

/* Section labels */
.md-nav__item--nested > .md-nav__link {
  font-family: 'Oxanium', sans-serif;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--rvl-text-dim) !important;
}

/* ============================================
   CONTENT TYPOGRAPHY
   ============================================ */
.md-typeset {
  font-size: 0.84rem;
  line-height: 1.75;
  color: var(--rvl-text);
}

.md-typeset h1 {
  font-family: 'Oxanium', sans-serif;
  font-weight: 800;
  font-size: 2rem;
  letter-spacing: -0.02em;
  color: #ffffff;
  margin-bottom: 0.6em;
  padding-bottom: 0.5em;
  border-bottom: none;
  position: relative;
}

/* Animated gradient underline on H1 */
.md-typeset h1::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--rvl-red), rgba(177, 18, 38, 0.3), transparent);
}

.md-typeset h2 {
  font-family: 'Oxanium', sans-serif;
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  color: #ffffff;
  margin-top: 2.5em;
  padding-top: 1em;
  border-top: 1px solid var(--rvl-border);
}

.md-typeset h2:first-of-type {
  border-top: none;
  padding-top: 0;
}

.md-typeset h3 {
  font-family: 'Oxanium', sans-serif;
  font-weight: 600;
  font-size: 1.05rem;
  color: #f1f5f9;
}

.md-typeset h4,
.md-typeset h5,
.md-typeset h6 {
  font-family: 'Oxanium', sans-serif;
  font-weight: 600;
  color: #94a3b8;
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
}

/* --- Paragraphs --- */
.md-typeset p {
  color: #cbd5e1;
}

/* --- Strong text --- */
.md-typeset strong {
  color: #ffffff;
  font-weight: 600;
}

/* ============================================
   LINKS — Red with hover transition
   ============================================ */
.md-typeset a {
  color: var(--rvl-red);
  text-decoration: none;
  transition: all 0.15s ease;
}

.md-typeset a:hover {
  color: var(--rvl-red-hover);
  text-shadow: 0 0 20px rgba(177, 18, 38, 0.2);
}

/* ============================================
   CODE — Terminal aesthetic
   ============================================ */
[data-md-color-scheme="slate"] .md-typeset code {
  background: #0a0c0f;
  border: 1px solid var(--rvl-border);
  color: #e2e8f0;
  font-size: 0.82em;
  padding: 0.15em 0.45em;
  border-radius: 0;
}

[data-md-color-scheme="slate"] .md-typeset pre {
  background: #080a0d;
  border: 1px solid var(--rvl-border);
  border-left: 3px solid var(--rvl-red);
  border-radius: 0;
  position: relative;
}

/* Terminal-style label on code blocks */
[data-md-color-scheme="slate"] .md-typeset pre::before {
  content: 'terminal';
  position: absolute;
  top: 0;
  right: 0;
  background: var(--rvl-red-glow);
  color: var(--rvl-text-dim);
  font-family: 'Oxanium', sans-serif;
  font-size: 0.55rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  padding: 0.2em 0.8em;
  border-bottom-left-radius: 0;
}

[data-md-color-scheme="slate"] .md-typeset pre > code {
  background: transparent;
  border: none;
  padding: 0;
}

/* ============================================
   TABLES — Dark card style with red headers
   ============================================ */
[data-md-color-scheme="slate"] .md-typeset table:not([class]) {
  background: var(--rvl-surface);
  border: 1px solid var(--rvl-border);
  border-radius: 0;
  font-size: 0.8rem;
  overflow: hidden;
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) th {
  background: rgba(177, 18, 38, 0.06);
  border-bottom: 1px solid rgba(177, 18, 38, 0.15);
  color: #ffffff;
  font-family: 'Oxanium', sans-serif;
  font-weight: 700;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.9em 1em;
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) td {
  border-bottom: 1px solid var(--rvl-border);
  padding: 0.75em 1em;
  color: #cbd5e1;
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) tr:hover td {
  background: rgba(255, 255, 255, 0.015);
}

/* Checkmark styling in tables */
.md-typeset table td:has(✓),
.md-typeset table td strong {
  color: #ffffff;
}

/* ============================================
   ADMONITIONS — Sharp edges, left accent bar
   ============================================ */
[data-md-color-scheme="slate"] .md-typeset .admonition,
[data-md-color-scheme="slate"] .md-typeset details {
  background: var(--rvl-surface);
  border: 1px solid var(--rvl-border);
  border-left: 3px solid;
  border-radius: 0;
  box-shadow: none;
  overflow: hidden;
}

[data-md-color-scheme="slate"] .md-typeset .admonition-title,
[data-md-color-scheme="slate"] .md-typeset summary {
  background: rgba(255, 255, 255, 0.015);
  border-bottom: 1px solid var(--rvl-border);
  font-family: 'Oxanium', sans-serif;
  font-weight: 700;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.md-typeset .admonition.tip { border-left-color: #10b981; }
.md-typeset .admonition.warning { border-left-color: #f59e0b; }
.md-typeset .admonition.info, .md-typeset .admonition.note { border-left-color: #3b82f6; }
.md-typeset .admonition.danger, .md-typeset .admonition.bug { border-left-color: var(--rvl-red); }
.md-typeset details.tip { border-left-color: #10b981; }
.md-typeset details.warning { border-left-color: #f59e0b; }
.md-typeset details.info, .md-typeset details.note { border-left-color: #3b82f6; }

/* ============================================
   SEARCH
   ============================================ */
[data-md-color-scheme="slate"] .md-search__input {
  background: var(--rvl-surface);
  border: 1px solid var(--rvl-border);
  border-radius: 0;
  color: var(--rvl-text);
}

[data-md-color-scheme="slate"] .md-search__input:focus {
  border-color: rgba(177, 18, 38, 0.3);
  box-shadow: 0 0 0 3px rgba(177, 18, 38, 0.08);
}

[data-md-color-scheme="slate"] .md-search__input::placeholder {
  color: var(--rvl-text-dim);
}

/* ============================================
   FOOTER
   ============================================ */
.md-footer {
  background: #060709;
  border-top: 1px solid var(--rvl-border);
}

.md-footer-meta {
  background: #040506;
}

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

.md-footer-nav__link:hover {
  opacity: 0.8;
}

/* ============================================
   HORIZONTAL RULES — Subtle gradient
   ============================================ */
[data-md-color-scheme="slate"] .md-typeset hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, var(--rvl-border), rgba(177, 18, 38, 0.08), var(--rvl-border));
  margin: 2.5em 0;
}

/* ============================================
   SCROLLBARS
   ============================================ */
[data-md-color-scheme="slate"] ::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}

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

[data-md-color-scheme="slate"] ::-webkit-scrollbar-thumb {
  background: #1e293b;
}

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

/* ============================================
   SELECTION
   ============================================ */
::selection {
  background: rgba(177, 18, 38, 0.3);
  color: #ffffff;
}

/* ============================================
   TOC (right sidebar)
   ============================================ */
[data-md-color-scheme="slate"] .md-sidebar--secondary .md-nav__link {
  font-size: 0.7rem;
  color: var(--rvl-text-dim);
  border-left: 1px solid transparent;
  transition: all 0.15s ease;
}

[data-md-color-scheme="slate"] .md-sidebar--secondary .md-nav__link:hover {
  color: var(--rvl-text-muted);
}

[data-md-color-scheme="slate"] .md-sidebar--secondary .md-nav__link--active {
  color: var(--rvl-red);
  border-left-color: var(--rvl-red);
}

/* ============================================
   BACK TO TOP
   ============================================ */
.md-top {
  background: var(--rvl-red);
  color: #ffffff;
  border-radius: 0;
  font-family: 'Oxanium', sans-serif;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.65rem;
}

.md-top:hover {
  background: var(--rvl-red-hover);
  box-shadow: 0 0 20px rgba(177, 18, 38, 0.3);
}

/* ============================================
   COPY BUTTON
   ============================================ */
[data-md-color-scheme="slate"] .md-clipboard {
  color: var(--rvl-text-dim);
}

[data-md-color-scheme="slate"] .md-clipboard:hover {
  color: var(--rvl-red);
}

/* ============================================
   CODE IN HEADINGS — Badge style
   ============================================ */
.md-typeset h1 code,
.md-typeset h2 code,
.md-typeset h3 code {
  background: var(--rvl-red-glow);
  border: 1px solid rgba(177, 18, 38, 0.25);
  color: var(--rvl-red);
  font-size: 0.7em;
  padding: 0.2em 0.5em;
}

/* ============================================
   LISTS — Subtle markers
   ============================================ */
[data-md-color-scheme="slate"] .md-typeset ul > li::marker {
  color: var(--rvl-red);
}

[data-md-color-scheme="slate"] .md-typeset ol > li::marker {
  color: var(--rvl-red);
  font-family: 'Oxanium', sans-serif;
  font-weight: 700;
}

/* ============================================
   CONTENT TABS (if used)
   ============================================ */
.md-typeset .tabbed-labels > label {
  font-family: 'Oxanium', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.md-typeset .tabbed-labels > label--active {
  color: var(--rvl-red);
  border-color: var(--rvl-red);
}

/* ============================================
   BACKGROUND TEXTURE — Subtle hex grid
   ============================================ */
[data-md-color-scheme="slate"] .md-main {
  background-image:
    radial-gradient(circle at 20% 50%, rgba(177, 18, 38, 0.015) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(177, 18, 38, 0.01) 0%, transparent 40%);
}

/* ============================================
   LIGHT MODE (minimal — keep it functional)
   ============================================ */
[data-md-color-scheme="default"] {
  --md-primary-fg-color: #0B0D10;
  --md-accent-fg-color: var(--rvl-red);
}

[data-md-color-scheme="default"] .md-header,
[data-md-color-scheme="default"] .md-tabs {
  background: #0B0D10;
}