/* =========================================================================
   scele-cli Documentation Stylesheet
   Brand Palette: SCELE Makara Gold (Universitas Indonesia Fasilkom)
   Accessibility: WCAG AA verified (4.5:1 normal text, 3:1 components/large)
   Design Dials: ENERGY 2 (Balanced) / RHYTHM 2 (Varied) / MOTION 1 (Calm)
   ========================================================================= */

:root {
  --scele-gold: #f2b705;
  --scele-gold-hover: #dfa600;
  --scele-gold-light: #fde047;
  --scele-gold-dark: #b45309;
  --scele-ink: #18181b;
  --scele-radius: 0.45rem;
  --scele-radius-sm: 0.35rem;
  --scele-radius-lg: 0.65rem;
}

/* -------------------------------------------------------------------------
   Light Scheme (Default)
   Header carries SCELE gold with dark ink text.
   Body is warm canvas (#faf9f5) with deep ink typography (#18181b).
   ------------------------------------------------------------------------- */
[data-md-color-scheme="default"][data-md-color-primary] {
  --md-primary-fg-color: var(--scele-gold);
  --md-primary-fg-color--light: var(--scele-gold-light);
  --md-primary-fg-color--dark: var(--scele-gold-dark);
  --md-primary-bg-color: var(--scele-ink);
  --md-primary-bg-color--light: rgba(24, 24, 27, 0.75);

  --md-default-bg-color: #faf9f5;
  --md-default-fg-color: #18181b;
  --md-default-fg-color--light: #4b4843;
  --md-default-fg-color--lighter: #6b6760;

  --md-accent-fg-color: var(--scele-gold-dark);
  --md-accent-fg-color--transparent: rgba(180, 83, 9, 0.1);

  --md-typeset-a-color: #92400e;
  --md-footer-bg-color: #1e1b15;
  --md-footer-bg-color--dark: #14120e;
  --md-code-bg-color: #f3f0e6;
  --md-code-fg-color: #18181b;

  --scele-accent: var(--scele-gold-dark);
  --scele-accent-subtle: rgba(180, 83, 9, 0.1);
  --scele-surface: #ffffff;
  --scele-surface-raised: #ffffff;
  --scele-border: #e6dfcd;
  --scele-border-hover: #caa840;
  --scele-card-shadow: 0 1px 3px rgba(42, 32, 3, 0.05);

  --scele-cta-secondary-bg: #ffffff;
  --scele-cta-secondary-fg: #18181b;
  --scele-cta-secondary-border: #d7ceb8;
}

/* -------------------------------------------------------------------------
   Dark Scheme (Slate / Obsidian)
   True deep slate (#0d0f12) with vibrant SCELE gold accents.
   ------------------------------------------------------------------------- */
[data-md-color-scheme="slate"][data-md-color-primary] {
  --md-hue: 45;

  --md-primary-fg-color: #13161c;
  --md-primary-fg-color--light: #1c2028;
  --md-primary-fg-color--dark: #0a0c0f;
  --md-primary-bg-color: #f4f4f5;
  --md-primary-bg-color--light: rgba(244, 244, 245, 0.75);

  --md-default-bg-color: #0d0f12;
  --md-default-fg-color: #f4f4f5;
  --md-default-fg-color--light: #a1a1aa;
  --md-default-fg-color--lighter: #71717a;

  --md-accent-fg-color: var(--scele-gold);
  --md-accent-fg-color--transparent: rgba(242, 183, 5, 0.12);

  --md-typeset-a-color: var(--scele-gold);
  --md-footer-bg-color: #0a0b0d;
  --md-footer-bg-color--dark: #060708;
  --md-code-bg-color: #161920;
  --md-code-fg-color: #e4e4e7;

  --scele-accent: var(--scele-gold);
  --scele-accent-subtle: rgba(242, 183, 5, 0.12);
  --scele-surface: #14171d;
  --scele-surface-raised: #1a1e26;
  --scele-border: #262a33;
  --scele-border-hover: #f2b705;
  --scele-card-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);

  --scele-cta-secondary-bg: #14171d;
  --scele-cta-secondary-fg: #f4f4f5;
  --scele-cta-secondary-border: #333844;
}

/* =========================================================================
   Header & Tabs
   ========================================================================= */

.md-header {
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

[data-md-color-scheme="slate"] .md-header {
  border-bottom: 1px solid var(--scele-border);
}

.md-header__title {
  font-weight: 700;
  letter-spacing: -0.01em;
}

.md-header__button.md-logo {
  display: none;
}

/* Tabs: clean separate tier with distinct contrast */
.md-tabs {
  background-color: var(--md-default-bg-color);
  border-bottom: 1px solid var(--scele-border);
  color: var(--md-default-fg-color--light);
}

[data-md-color-scheme="default"] .md-tabs {
  background-color: #f4f2ea;
  border-bottom-color: #e0d8c3;
  color: #3b3935;
}

.md-tabs__link {
  font-size: 0.78rem;
  font-weight: 500;
  opacity: 0.85;
  transition: opacity 120ms ease, color 120ms ease;
}

.md-tabs__item--active .md-tabs__link,
.md-tabs__link:hover {
  opacity: 1;
  color: var(--scele-accent);
}

.md-tabs__item--active .md-tabs__link {
  font-weight: 700;
  border-bottom: 2px solid var(--scele-accent);
}

/* Search Box in Header */
[data-md-color-scheme="default"][data-md-color-primary] .md-search__form {
  background-color: rgba(24, 24, 27, 0.1);
  border: 1px solid rgba(24, 24, 27, 0.16);
  border-radius: var(--scele-radius-sm);
}

[data-md-color-scheme="default"][data-md-color-primary] .md-search__input {
  color: var(--scele-ink);
}

[data-md-color-scheme="default"][data-md-color-primary] .md-search__input::placeholder,
[data-md-color-scheme="default"][data-md-color-primary] .md-search__icon {
  color: rgba(24, 24, 27, 0.72);
}

[data-md-color-scheme="slate"] .md-search__form {
  background-color: #181c24;
  border: 1px solid var(--scele-border);
  border-radius: var(--scele-radius-sm);
}

/* Navigation link states */
.md-nav__link--active,
.md-nav__link:hover {
  color: var(--scele-accent);
}

/* Heading permalinks: visible on hover/focus only (R-32, cleans up ¶ symbol) */
.headerlink {
  opacity: 0;
  text-decoration: none !important;
  margin-left: 0.4rem;
  color: var(--scele-accent);
  transition: opacity 120ms ease;
}

h1:hover .headerlink,
h2:hover .headerlink,
h3:hover .headerlink,
h4:hover .headerlink,
.headerlink:focus,
.headerlink:focus-visible {
  opacity: 0.75;
}

/* =========================================================================
   Hero Section
   ========================================================================= */

.hero {
  text-align: center;
  padding: 3.5rem 1rem 2.8rem;
  border-bottom: 1px solid var(--scele-border);
  margin-bottom: 3rem;
}

.hero__title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.1;
  margin: 0 0 0.75rem;
  letter-spacing: -0.035em;
  color: var(--scele-ink);
}

[data-md-color-scheme="slate"] .hero__title {
  color: #ffffff;
}

.hero__title-accent {
  color: var(--scele-gold);
}

.hero__tagline {
  max-width: 42rem;
  margin: 0 auto 2.2rem;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--md-default-fg-color--light);
}

/* Interactive install block */
.hero__install {
  max-width: 44rem;
  margin: 0 auto 1.8rem;
  text-align: left;
}

.hero__install-os {
  display: block;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--md-default-fg-color--light);
  margin-bottom: 0.45rem;
}

.hero__install-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: #15181e;
  border: 1px solid var(--scele-border);
  border-radius: var(--scele-radius);
  padding: 0.5rem 0.5rem 0.5rem 1rem;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.hero__install-row code {
  flex: 1;
  background: none;
  color: #e4e4e7;
  padding: 0;
  font-size: 0.82rem;
  font-family: ui-monospace, "SF Mono", "Cascadia Code", "Fira Code", monospace;
  white-space: nowrap;
  overflow-x: auto;
  scrollbar-width: thin;
}

.hero__copy {
  flex: none;
  min-height: 44px;
  min-width: 72px;
  cursor: pointer;
  border: none;
  border-radius: var(--scele-radius-sm);
  padding: 0 1rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #18181b;
  background: var(--scele-gold);
  transition: background-color 120ms ease, transform 80ms ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.hero__copy:hover {
  background: var(--scele-gold-hover);
}

.hero__copy:active {
  transform: scale(0.98);
}

/* Call to action buttons (44px min tap target per R-03, C-4) */
.hero__cta {
  display: flex;
  gap: 0.85rem;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.hero__cta .md-button {
  min-height: 44px;
  padding: 0.65rem 1.4rem;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: var(--scele-radius);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 120ms ease;
  text-decoration: none;
}

/* Primary CTA: Solid Gold with dark ink text (ratio 9.75:1) */
.hero__cta .md-button--primary {
  background-color: var(--scele-gold);
  color: #18181b !important;
  border: 1px solid var(--scele-gold);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

.hero__cta .md-button--primary:hover {
  background-color: var(--scele-gold-hover);
  border-color: var(--scele-gold-hover);
  color: #18181b !important;
  transform: translateY(-1px);
}

/* Secondary CTA: Clean outline button with high contrast */
.hero__cta .md-button:not(.md-button--primary) {
  background-color: var(--scele-cta-secondary-bg);
  color: var(--scele-cta-secondary-fg) !important;
  border: 1px solid var(--scele-cta-secondary-border);
}

.hero__cta .md-button:not(.md-button--primary):hover {
  border-color: var(--scele-accent);
  color: var(--scele-accent) !important;
  transform: translateY(-1px);
}

/* =========================================================================
   Feature Section & Cards (Content-Driven Composition C-3, R-14)
   ========================================================================= */

.feature-heading {
  text-align: center;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 3.5rem 0 1.5rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0 3.5rem;
}

.feature-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--scele-border);
  border-radius: var(--scele-radius);
  padding: 1.35rem;
  background: var(--scele-surface);
  box-shadow: var(--scele-card-shadow);
  transition: border-color 140ms ease, transform 140ms ease, box-shadow 140ms ease;
}

.feature-card:hover {
  border-color: var(--scele-border-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* CLI command preview badge inside feature card (replaces broken images) */
.feature-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--md-code-bg-color);
  border: 1px solid var(--scele-border);
  border-radius: var(--scele-radius-sm);
  padding: 0.35rem 0.65rem;
  margin-bottom: 0.9rem;
  font-size: 0.74rem;
  font-family: ui-monospace, "SF Mono", "Cascadia Code", "Fira Code", monospace;
  color: var(--md-default-fg-color);
  align-self: flex-start;
}

.feature-card__prompt {
  color: var(--scele-gold);
  font-weight: 700;
  user-select: none;
}

.feature-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.feature-card p {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--md-default-fg-color--light);
  flex: 1;
}

/* Hide placeholder images so broken icon is never visible */
.feature-card__img {
  display: none;
}

.feature-card__img.has-image {
  display: block;
  width: 100%;
  height: 9rem;
  object-fit: cover;
  border-radius: var(--scele-radius-sm);
  margin-bottom: 0.75rem;
  border: 1px solid var(--scele-border);
}

/* =========================================================================
   Install Tabs & Command Pages
   ========================================================================= */

.tabbed-set {
  border-radius: var(--scele-radius);
  overflow: hidden;
  border: 1px solid var(--scele-border);
}

.tabbed-labels {
  background-color: var(--scele-surface);
  border-bottom: 1px solid var(--scele-border);
}

.tabbed-labels > label {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.7rem 1rem;
}

/* Functional "write" badge in command overview table (R-09) */
.cmd-write {
  display: inline-block;
  padding: 0.1rem 0.45rem;
  border-radius: var(--scele-radius-sm);
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #18181b;
  background: var(--scele-gold);
}

/* Command screenshots if rendered */
.cmd-shot {
  display: block;
  width: 100%;
  border: 1px solid var(--scele-border);
  border-radius: var(--scele-radius);
  background: var(--md-code-bg-color);
}

.cmd-shot.is-placeholder {
  display: none;
}

/* Admonitions styling aligned to SCELE palette */
.md-typeset .admonition {
  border-left-width: 4px;
  border-radius: var(--scele-radius-sm);
}

/* =========================================================================
   Report-an-Issue Form (report.md)
   ========================================================================= */

.issue-form {
  max-width: 42rem;
  margin: 1.8rem 0 2.5rem;
}

.issue-field {
  margin-bottom: 1.25rem;
}

.issue-field label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--md-default-fg-color);
}

.issue-field label span {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--md-default-fg-color--light);
}

.issue-field input,
.issue-field select,
.issue-field textarea {
  width: 100%;
  min-height: 44px;
  padding: 0.6rem 0.8rem;
  font-family: inherit;
  font-size: 0.84rem;
  color: var(--md-default-fg-color);
  background: var(--scele-surface);
  border: 1px solid var(--scele-border);
  border-radius: var(--scele-radius-sm);
  transition: border-color 120ms ease, box-shadow 120ms ease;
}

.issue-field input::placeholder,
.issue-field textarea::placeholder {
  color: var(--md-default-fg-color--light);
  opacity: 0.75;
}

.issue-field textarea {
  min-height: 140px;
  resize: vertical;
  font-family: ui-monospace, "SF Mono", "Cascadia Code", "Fira Code", monospace;
  font-size: 0.8rem;
}

.issue-field input:focus,
.issue-field select:focus,
.issue-field textarea:focus {
  outline: 2px solid var(--scele-accent);
  outline-offset: 1px;
  border-color: var(--scele-accent);
}

.issue-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.issue-actions .md-button {
  min-height: 44px;
  padding: 0.65rem 1.4rem;
  font-weight: 600;
  border-radius: var(--scele-radius-sm);
  background-color: var(--scele-gold);
  color: #18181b !important;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.issue-actions .md-button:hover {
  background-color: var(--scele-gold-hover);
}

/* =========================================================================
   Contributors Section (credits.md)
   ========================================================================= */

.contributors {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr));
  gap: 0.9rem;
  margin: 1.8rem 0 2.5rem;
}

.contributors__status {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 0.82rem;
  color: var(--md-default-fg-color--light);
}

.contributor {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  min-height: 44px;
  border: 1px solid var(--scele-border);
  border-radius: var(--scele-radius);
  background: var(--scele-surface);
  color: inherit;
  text-decoration: none !important;
  transition: border-color 120ms ease, transform 120ms ease;
}

.contributor:hover {
  border-color: var(--scele-accent);
  transform: translateY(-1px);
}

.contributor img {
  width: 2.5rem;
  height: 2.5rem;
  flex: none;
  border-radius: 50%;
  border: 1px solid var(--scele-border);
  background: var(--md-code-bg-color);
}

.contributor__name {
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.25;
  word-break: break-word;
  color: var(--md-default-fg-color);
}

.contributor__count {
  font-size: 0.7rem;
  color: var(--md-default-fg-color--light);
}

/* =========================================================================
   Site Footer
   ========================================================================= */

.site-foot {
  text-align: center;
  padding: 3rem 1rem 1.5rem;
  border-top: 1px solid var(--scele-border);
  font-size: 0.8rem;
  color: var(--md-default-fg-color--light);
}

.site-foot a {
  color: var(--md-default-fg-color--light);
  text-decoration: none;
  transition: color 120ms ease;
}

.site-foot a:hover {
  color: var(--scele-accent);
}

/* =========================================================================
   Accessibility: Visible Keyboard Focus States (R-32, WCAG 2.4.7)
   ========================================================================= */

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--scele-accent) !important;
  outline-offset: 2px !important;
}

/* =========================================================================
   Mobile Responsiveness (R-03)
   ========================================================================= */

@media screen and (max-width: 44rem) {
  .hero {
    padding: 2.5rem 0.75rem 2rem;
  }

  .hero__title {
    font-size: 2.3rem;
  }

  .hero__tagline {
    font-size: 0.9rem;
    padding: 0 0.5rem;
  }

  .hero__install-row {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
    padding: 0.85rem;
  }

  .hero__install-row code {
    font-size: 0.78rem;
    padding: 0.2rem 0;
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: thin;
  }

  .hero__copy {
    width: 100%;
    min-height: 44px;
    font-size: 0.76rem;
  }

  .hero__cta {
    flex-direction: column;
    width: 100%;
    max-width: 20rem;
    margin-left: auto;
    margin-right: auto;
  }

  .hero__cta .md-button {
    width: 100%;
  }

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