/* Sundari Ember/Charcoal Theme — Matches src/ui/theme.odin (theme_sundari_amber_charcoal) */
:root {
  --bg-base: #0e0e10;
  --bg-header: #111113;
  --bg-input: #141417;
  --bg-panel: #161618;
  --bg-surface: #1e1e22;
  --bg-card: #25252b;

  --border-subtle: #27272e;
  --border-strong: #33333b;
  --border-hover: #4a4a55;

  --accent-primary: #e67e22;
  --accent-hover: #f39c12;
  --accent-active: #d35400;

  --text-primary: #f2f0ec;
  --text-secondary: #b8b4ac;
  --text-muted: #827e77;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}

a {
  color: var(--accent-hover);
  text-decoration: none;
  overflow-wrap: break-word;
}

a:hover {
  text-decoration: underline;
}

/* Top Navigation Bar (DCC Menu Bar Style) */
.topbar {
  background-color: var(--bg-header);
  border-bottom: 1px solid var(--border-strong);
  min-height: 44px;
  display: flex;
  align-items: center;
}

.topbar-inner {
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  padding: 6px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  color: var(--accent-primary);
  font-weight: 700;
}

.brand-tag {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.nav-link {
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  padding: 5px 12px;
  border: 1px solid transparent;
  border-radius: 2px;
}

.nav-link:hover {
  color: var(--text-primary);
  background-color: var(--bg-surface);
  border-color: var(--border-subtle);
  text-decoration: none;
}

.nav-link.active {
  color: var(--text-primary);
  background-color: var(--bg-card);
  border-color: var(--accent-primary);
}

/* Main Container */
.container {
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  padding: 36px 20px 64px;
}

/* Page Header / Hero */
.hero {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: 2px;
  padding: 32px 28px;
  margin-bottom: 32px;
}

.eyebrow {
  display: inline-block;
  max-width: 100%;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 12px;
  color: var(--accent-hover);
  background-color: var(--bg-input);
  border: 1px solid var(--border-strong);
  padding: 2px 8px;
  border-radius: 2px;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.lead {
  color: var(--text-secondary);
  font-size: 16px;
  max-width: 740px;
  margin-bottom: 18px;
}

.lead strong {
  color: var(--text-primary);
  font-weight: 600;
}

.lead:last-child {
  margin-bottom: 0;
}

/* Subtle Standards / Pipeline Tag Row */
.standards-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 22px;
}

.standard-chip {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 12px;
  color: var(--text-secondary);
  background-color: var(--bg-input);
  border: 1px solid var(--border-subtle);
  padding: 3px 9px;
  border-radius: 2px;
}

.standard-chip strong {
  color: var(--accent-hover);
  font-weight: 600;
}

/* Buttons */
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 34px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  border-radius: 2px;
  border: 1px solid var(--border-strong);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  cursor: pointer;
}

.btn:hover {
  background-color: var(--bg-card);
  border-color: var(--border-hover);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--accent-primary);
  border-color: var(--accent-hover);
  color: #0e0e10;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #0e0e10;
}

/* Sections & Headings */
.section {
  margin-bottom: 36px;
}

h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  padding-bottom: 8px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border-strong);
  letter-spacing: -0.01em;
}

h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--accent-hover);
  margin-bottom: 6px;
}

p {
  color: var(--text-secondary);
  margin-bottom: 12px;
  overflow-wrap: break-word;
}

p:last-child {
  margin-bottom: 0;
}

/* Grids & Panels */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.panel {
  min-width: 0;
  background-color: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 2px;
  padding: 16px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
  padding-bottom: 8px;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--border-subtle);
}

.panel-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.panel-meta {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 12px;
  color: var(--text-muted);
}

/* Callout / Notice Box */
.notice {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-left: 3px solid var(--accent-primary);
  border-radius: 2px;
  padding: 14px 16px;
  margin-bottom: 20px;
}

.notice-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

/* Lists */
ul, ol {
  padding-left: 20px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

li {
  margin-bottom: 6px;
  overflow-wrap: break-word;
}

li strong {
  color: var(--text-primary);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--bg-panel);
  border: 1px solid var(--border-strong);
  margin-bottom: 20px;
}

th, td {
  text-align: left;
  padding: 9px 12px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 13.5px;
  vertical-align: top;
  overflow-wrap: break-word;
  word-break: break-word;
}

th {
  background-color: var(--bg-header);
  color: var(--text-primary);
  font-weight: 600;
  border-bottom: 1px solid var(--border-strong);
}

td {
  color: var(--text-secondary);
}

td strong {
  color: var(--text-primary);
}

/* Code & Keycaps */
code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 12.5px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 1px 5px;
  border-radius: 2px;
  overflow-wrap: anywhere;
  word-break: break-word;
}

pre {
  max-width: 100%;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  padding: 12px 14px;
  border-radius: 2px;
  overflow-x: auto;
  margin: 8px 0 12px;
}

kbd {
  display: inline-block;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 12px;
  line-height: 1.2;
  color: var(--text-primary);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: 2px;
  padding: 2px 6px;
}

/* Docs In-Page Jump Bar */
.jump-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  background-color: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  padding: 10px 12px;
  border-radius: 2px;
  margin-bottom: 28px;
}

.jump-bar a {
  font-size: 12.5px;
  color: var(--text-secondary);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 4px 9px;
  border-radius: 2px;
}

.jump-bar a:hover {
  color: var(--text-primary);
  border-color: var(--accent-primary);
  text-decoration: none;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-strong);
  background-color: var(--bg-header);
  padding: 20px;
  font-size: 12.5px;
  color: var(--text-muted);
}

.footer-inner {
  max-width: 1040px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.footer-links a {
  color: var(--text-secondary);
}

/* Interactive Showcase Carousel */
.showcase-section {
  margin-bottom: 36px;
}

.carousel-viewport {
  position: relative;
  overflow: hidden;
  background-color: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
  width: 100%;
  aspect-ratio: 3248 / 2122;
  outline: none;
}

.carousel-viewport:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: -2px;
}

.carousel-track {
  display: flex;
  width: 100%;
  height: 100%;
  transition: transform 0.45s cubic-bezier(0.2, 0.9, 0.2, 1);
}

.carousel-slide {
  min-width: 100%;
  width: 100%;
  height: 100%;
  flex-shrink: 0;
  position: relative;
}

.slide-media {
  position: relative;
  width: 100%;
  height: 100%;
  cursor: zoom-in;
}

.slide-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.slide-zoom-hint {
  position: absolute;
  top: 12px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 11px;
  color: var(--text-primary);
  background-color: rgba(14, 14, 16, 0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid var(--border-subtle);
  padding: 4px 8px;
  border-radius: 3px;
  opacity: 0;
  transform: translateY(-4px);
  transition: all 0.2s ease;
  pointer-events: none;
}

.slide-media:hover .slide-zoom-hint {
  opacity: 1;
  transform: translateY(0);
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(17, 17, 19, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s ease;
  z-index: 10;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.5);
}

.carousel-btn:hover {
  background-color: var(--accent-primary);
  border-color: var(--accent-hover);
  color: #0e0e10;
  transform: translateY(-50%) scale(1.06);
}

.carousel-btn:active {
  transform: translateY(-50%) scale(0.96);
}

.carousel-btn.prev {
  left: 14px;
}

.carousel-btn.next {
  right: 14px;
}

.carousel-dots {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: rgba(14, 14, 16, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  padding: 6px 12px;
  border-radius: 20px;
  z-index: 10;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 4px;
  background-color: var(--border-hover);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: all 0.25s ease;
}

.carousel-dot:hover {
  background-color: var(--accent-hover);
}

.carousel-dot.active {
  background-color: var(--accent-primary);
  width: 22px;
}

/* Lightbox Modal */
.carousel-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background-color: rgba(10, 10, 12, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
}

.carousel-lightbox.open {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-content {
  position: relative;
  max-width: 96vw;
  max-height: 94vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 88vh;
  object-fit: contain;
  border-radius: 4px;
  border: 1px solid var(--border-strong);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.8);
}

.lightbox-close {
  position: absolute;
  top: -16px;
  right: -16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--bg-card);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
  transition: all 0.15s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.lightbox-close:hover {
  background-color: var(--accent-primary);
  color: #0e0e10;
  border-color: var(--accent-hover);
}

/* Tablet & Mobile Responsive Breakpoints */
@media (max-width: 820px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 600px) {
  .topbar-inner {
    padding: 8px 14px;
    gap: 8px;
  }

  .brand {
    width: 100%;
    justify-content: space-between;
  }

  .nav-links {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 4px;
  }

  .nav-link {
    text-align: center;
    padding: 6px 4px;
    font-size: 12.5px;
  }

  .container {
    padding: 20px 14px 48px;
  }

  .hero {
    padding: 20px 16px;
    margin-bottom: 24px;
  }

  h1 {
    font-size: 22px;
  }

  .lead {
    font-size: 14.5px;
  }

  .btn-row {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
    min-height: 38px;
  }

  .panel {
    padding: 14px;
  }

  /* Stack 2-column tables cleanly into mobile cards with zero horizontal scroll */
  table,
  tbody,
  tr,
  td {
    display: block;
    width: 100%;
  }

  thead {
    display: none;
  }

  tr {
    border-bottom: 1px solid var(--border-strong);
    padding: 10px 12px;
  }

  tr:last-child {
    border-bottom: none;
  }

  td {
    padding: 0;
    border-bottom: none;
  }

  td:first-child {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 4px;
  }

  footer {
    padding: 18px 14px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 10px;
  }

  /* Carousel Mobile Adaptations */
  .carousel-dots {
    bottom: 10px;
    padding: 4px 8px;
    gap: 6px;
  }

  .carousel-btn {
    width: 34px;
    height: 34px;
  }

  .carousel-btn.prev {
    left: 8px;
  }

  .carousel-btn.next {
    right: 8px;
  }
}