/* ==========================================================================
   originalrgsec Brand Theme — GitHub Pages Documentation
   Ported from open-workspace-builder for cross-project visual consistency.
   Dark charcoal + muted navy backgrounds, gold primary accent with glow,
   royal blue secondary accent with glow. Sans-serif typography.
   ========================================================================== */

/* ---- Color variables ---- */
:root {
  /* originalrgsec brand palette */
  --rg-gold: #D4A017;
  --rg-gold-light: #E8B830;
  --rg-gold-dark: #A67C00;
  --rg-gold-glow: rgba(212, 160, 23, 0.45);
  --rg-royal-blue: #3A5BA0;
  --rg-royal-blue-light: #4A6FBE;
  --rg-royal-blue-glow: rgba(58, 91, 160, 0.45);
  --rg-navy: #1B2A4A;
  --rg-charcoal: #12121E;
  --rg-dark: #0A0A14;
  --rg-text-light: #F0F0F0;
  --rg-text-muted: #B0B0C0;

  /* Material overrides */
  --md-primary-fg-color: #D4A017;
  --md-primary-fg-color--light: #E8B830;
  --md-primary-fg-color--dark: #A67C00;
  --md-accent-fg-color: #3A5BA0;
  --md-accent-fg-color--transparent: rgba(58, 91, 160, 0.1);
}

[data-md-color-scheme="slate"] {
  --md-default-bg-color: #0A0A14;
  --md-default-bg-color--light: #12121E;
  --md-default-bg-color--lighter: #1B2A4A;
  --md-primary-fg-color: #D4A017;
  --md-primary-fg-color--light: #E8B830;
  --md-primary-fg-color--dark: #A67C00;
  --md-accent-fg-color: #3A5BA0;
  --md-typeset-color: #F0F0F0;
  --md-typeset-a-color: #E8B830;
  --md-code-bg-color: #12121E;
}

/* ---- Typography ---- */
:root {
  --md-text-font: "Arial", "Helvetica Neue", Helvetica, sans-serif;
}

/* ---- Header ---- */
.md-header {
  background: linear-gradient(135deg, #0A0A14 0%, #12121E 100%);
  border-bottom: 1px solid rgba(212, 160, 23, 0.2);
}

.md-header__title {
  font-weight: 600;
}

/* ---- Navigation tabs ---- */
.md-tabs {
  background: #0A0A14;
  border-bottom: 1px solid rgba(212, 160, 23, 0.15);
}

/* ---- Hide auto-generated H1 on landing page ---- */
.md-typeset h1:first-child {
  display: none;
}

/* ---- Hero Section (landing page) ---- */
.md-typeset .rg-hero {
  position: relative;
  background: linear-gradient(
    160deg,
    #0A0A14 0%,
    #12121E 40%,
    #1B2A4A 100%
  );
  padding: 6rem 2rem 4rem;
  text-align: center;
  overflow: hidden;
  margin: -0.8rem -0.8rem 0;
}

.md-typeset .rg-hero > * {
  position: relative;
  z-index: 1;
}

/* The markdown processor wraps <img> in <p>; collapse that wrapper */
.md-typeset .rg-hero p:has(.rg-hero__avatar) {
  margin: 0;
  padding: 0;
  line-height: 0;
}

.md-typeset .rg-hero__avatar {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--rg-gold);
  box-shadow: 0 0 24px var(--rg-gold-glow), 0 0 48px rgba(212, 160, 23, 0.15);
  margin: 0 auto 2rem;
  display: block;
}

.md-typeset .rg-hero__tagline {
  font-size: 1.5rem;
  color: var(--rg-text-light);
  max-width: 640px;
  margin: 0 auto 1rem;
  line-height: 1.6;
}

.md-typeset .rg-hero__sub {
  font-size: 1.05rem;
  color: var(--rg-text-muted);
  max-width: 560px;
  margin: 0 auto 2.5rem;
  line-height: 1.5;
}

.md-typeset .rg-hero__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---- Buttons ---- */
.md-typeset .rg-btn {
  display: inline-block;
  padding: 0.85rem 2rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.2s ease;
}

.md-typeset .rg-btn--primary {
  background: var(--rg-gold);
  color: var(--rg-charcoal) !important;
}

.md-typeset .rg-btn--primary:hover {
  background: var(--rg-gold-light);
  box-shadow: 0 0 24px var(--rg-gold-glow), 0 0 48px rgba(212, 160, 23, 0.2);
  color: var(--rg-charcoal) !important;
}

.md-typeset .rg-btn--secondary {
  background: transparent;
  color: var(--rg-royal-blue-light);
  border: 2px solid var(--rg-royal-blue);
}

.md-typeset .rg-btn--secondary:hover {
  background: rgba(58, 91, 160, 0.1);
  box-shadow: 0 0 20px var(--rg-royal-blue-glow);
  color: var(--rg-royal-blue-light);
}

/* ---- Feature Cards ---- */
.md-typeset .rg-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 3rem auto;
  padding: 0 1rem;
}

.md-typeset .rg-feature {
  background: rgba(18, 18, 30, 0.6);
  border: 1px solid rgba(58, 91, 160, 0.3);
  border-radius: 10px;
  padding: 2rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.md-typeset .rg-feature:hover {
  border-color: rgba(212, 160, 23, 0.5);
  box-shadow: 0 4px 24px rgba(212, 160, 23, 0.15);
}

.md-typeset .rg-feature__icon {
  display: flex;
  justify-content: center;
  margin-bottom: 1rem;
}

.md-typeset .rg-feature__icon svg {
  width: 32px;
  height: 32px;
}

.md-typeset .rg-feature__title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--rg-gold-light);
  margin-bottom: 0.5rem;
}

.md-typeset .rg-feature__desc {
  color: var(--rg-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ---- Quick Install Block ---- */
.md-typeset .rg-install {
  max-width: 700px;
  margin: 3rem auto;
  padding: 0 1rem;
  text-align: center;
}

.md-typeset .rg-install__title {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--rg-text-light);
  margin-bottom: 1.5rem;
}

/* ---- Section Headers ---- */
.md-typeset .rg-section {
  text-align: center;
  max-width: 800px;
  margin: 4rem auto 2rem;
  padding: 0 1rem;
}

.md-typeset .rg-section__title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--rg-text-light);
  margin-bottom: 0.75rem;
}

.md-typeset .rg-section__desc {
  color: var(--rg-text-muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

/* ---- Gold glow effect for interactive elements ---- */
a:hover,
.md-nav__link:hover {
  text-shadow: 0 0 8px var(--rg-gold-glow);
}

/* Sidebar active link glow */
.md-nav__link--active {
  color: var(--rg-gold-light) !important;
  text-shadow: 0 0 6px var(--rg-gold-glow);
}

/* ---- Footer ---- */
.md-footer {
  background: #07070E;
  border-top: 1px solid rgba(212, 160, 23, 0.15);
}

/* ---- Admonition customization ---- */
.md-typeset .admonition.tip,
.md-typeset details.tip {
  border-color: var(--rg-gold);
}

.md-typeset .tip > .admonition-title,
.md-typeset .tip > summary {
  background-color: rgba(212, 160, 23, 0.1);
}

.md-typeset .admonition.note,
.md-typeset details.note {
  border-color: var(--rg-royal-blue);
}

.md-typeset .note > .admonition-title,
.md-typeset .note > summary {
  background-color: rgba(58, 91, 160, 0.1);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .md-typeset .rg-hero {
    padding: 4rem 1.5rem 3rem;
  }

  .md-typeset .rg-hero__tagline {
    font-size: 1.25rem;
  }

  .md-typeset .rg-features {
    grid-template-columns: 1fr;
  }
}

/* ---- Light mode overrides ---- */
[data-md-color-scheme="default"] {
  --md-typeset-color: #12121E;
  --md-typeset-a-color: #A67C00;
}

[data-md-color-scheme="default"] .md-typeset .rg-hero {
  background: linear-gradient(160deg, #12121E 0%, #1B2A4A 40%, #0A0A14 100%);
}

[data-md-color-scheme="default"] .md-typeset .rg-feature {
  background: #F5F5F8;
  border-color: rgba(58, 91, 160, 0.3);
}

[data-md-color-scheme="default"] .md-typeset .rg-feature__desc {
  color: #1B2A4A;
}

[data-md-color-scheme="default"] .md-typeset .rg-section__title {
  color: #12121E;
}

[data-md-color-scheme="default"] .md-typeset .rg-section__desc {
  color: #1B2A4A;
}