/* ── Reset ─────────────────────────────────────────────────────────────── */

*, *::before, *::after {
  box-sizing: border-box;
  border-radius: 0 !important;
}

/* ── Themes ────────────────────────────────────────────────────────────── */

:root[data-theme="light"] {
  --bg: #ffffff;
  --surface: #f8fafc;
  --surface-2: #f1f5f9;
  --text: #0f172a;
  --text-muted: #64748b;
  --text-strong: #020617;
  --border: #e2e8f0;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-tint: #eef2ff;
  --primary-text: #ffffff;
  --code-bg: #1e1e2e;
  --code-text: #a6e3a1;
  --header-bg: rgba(255, 255, 255, 0.85);
  --header-border: #e2e8f0;
  --tag-live-bg: #dcfce7;
  --tag-live-text: #166534;
  --tag-soon-bg: #f1f5f9;
  --tag-soon-text: #64748b;
  --mode-soon-opacity: 0.6;
}

:root[data-theme="dark"] {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-2: #334155;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --text-strong: #ffffff;
  --border: #334155;
  --primary: #818cf8;
  --primary-hover: #6366f1;
  --primary-tint: #1e1b4b;
  --primary-text: #ffffff;
  --code-bg: #020617;
  --code-text: #a6e3a1;
  --header-bg: rgba(15, 23, 42, 0.85);
  --header-border: #1e293b;
  --tag-live-bg: #14532d;
  --tag-live-text: #86efac;
  --tag-soon-bg: #334155;
  --tag-soon-text: #94a3b8;
  --mode-soon-opacity: 0.5;
}

/* Dark mode widget override — CSS vars cross the shadow boundary */
:root[data-theme="dark"] discussion-cultivator {
  --dc-bg-color: #1e293b;
  --dc-surface-color: #0f172a;
  --dc-text-color: #f1f5f9;
  --dc-text-strong-color: #ffffff;
  --dc-muted-color: #94a3b8;
  --dc-border-color: #334155;
  --dc-primary-color: #818cf8;
  --dc-primary-hover-color: #6366f1;
  --dc-primary-light-color: #1e1b4b;
  --dc-primary-text-color: #ffffff;
  --dc-danger-color: #f87171;
  --dc-danger-bg-color: #1f1215;
}

/* Sharp edges inside widget via CSS custom properties */
discussion-cultivator {
  --dc-border-radius: 0;
  --dc-border-radius-sm: 0;
}

/* ── Base ───────────────────────────────────────────────────────────────── */

body {
  font-family: "Geist", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  padding: 0;
  min-height: 100vh;
  transition: background 0.2s, color 0.2s;
}

code,
pre,
.dc-code,
.dc-code-block pre {
  font-family: "JetBrains Mono", "Fira Code", "Consolas", monospace;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { margin: 0; font-weight: 700; color: var(--text-strong); }
p { margin: 0; line-height: 1.65; color: var(--text); }

/* ── Header ─────────────────────────────────────────────────────────────── */

.dc-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.dc-header__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.dc-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-strong);
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
}

.dc-logo:hover { text-decoration: none; color: var(--primary); }
.dc-logo__icon { font-size: 1.1rem; }

.dc-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex: 1;
}

.dc-nav a {
  padding: 0.35rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s;
}

.dc-nav a:hover { color: var(--text); text-decoration: none; }

.dc-header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* ── Buttons ────────────────────────────────────────────────────────────── */

.dc-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: inherit;
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  white-space: nowrap;
  border: 1px solid transparent;
}

.dc-btn--primary {
  background: var(--primary);
  color: var(--primary-text);
  border-color: var(--primary);
}

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

.dc-btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.dc-btn--ghost:hover {
  background: var(--surface);
  text-decoration: none;
  color: var(--text);
}

.dc-btn--lg {
  padding: 0.7rem 1.5rem;
  font-size: 1rem;
}

/* ── Theme toggle ───────────────────────────────────────────────────────── */

.dc-theme-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.15s;
  font-family: inherit;
  padding: 0;
}

.dc-theme-toggle:hover { background: var(--surface-2); }

/* ── Hero ───────────────────────────────────────────────────────────────── */

.dc-hero {
  max-width: 720px;
  margin: 0 auto;
  padding: 5rem 1.5rem 3rem;
  text-align: center;
}

.dc-hero__badge {
  display: inline-block;
  background: var(--primary-tint);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.3rem 0.8rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--primary-tint);
}

.dc-hero__title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.2rem;
  color: var(--text-strong);
}

.dc-hero__title em {
  font-style: normal;
  color: var(--primary);
}

.dc-hero__lede {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto 2rem;
}

.dc-hero__cta {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Tabs ───────────────────────────────────────────────────────────────── */

.dc-tabs {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

.dc-tabs__nav {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: 2.5rem;
  overflow-x: auto;
}

.dc-tab {
  padding: 0.7rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 500;
  font-family: inherit;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s;
}

.dc-tab:hover { color: var(--text); }

.dc-tab.is-active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

/* ── Panels ─────────────────────────────────────────────────────────────── */

.dc-panel { display: none; }
.dc-panel.is-active { display: block; }

.dc-panel h2 {
  font-size: 1.5rem;
  margin-bottom: 0.6rem;
  color: var(--text-strong);
}

.dc-panel h3 {
  font-size: 1.1rem;
  margin: 2rem 0 0.75rem;
  color: var(--text-strong);
}

.dc-panel__lede {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1.8rem;
  max-width: 680px;
  line-height: 1.65;
}

.dc-panel__lede code {
  background: var(--surface-2);
  padding: 0.15em 0.4em;
  font-size: 0.875em;
  color: var(--primary);
}

.dc-panel__lede a {
  color: var(--primary);
}

/* ── Preset chips (Demo tab) ────────────────────────────────────────────── */

.dc-presets {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.dc-presets__label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
}

.dc-chip {
  padding: 0.3rem 0.75rem;
  font-size: 0.82rem;
  font-weight: 500;
  font-family: inherit;
  background: var(--surface);
  color: var(--text-muted);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
}

.dc-chip:hover {
  background: var(--primary-tint);
  color: var(--primary);
  border-color: var(--primary);
}

/* ── Theming grid ───────────────────────────────────────────────────────── */

.dc-theming-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: start;
}

.dc-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.dc-code {
  display: block;
  width: 100%;
  background: var(--code-bg);
  color: var(--code-text);
  border: 1px solid var(--border);
  padding: 1rem;
  font-size: 0.8rem;
  line-height: 1.65;
  resize: vertical;
  outline: none;
  min-height: 180px;
  field-sizing: content;
  tab-size: 2;
}

.dc-code:focus { border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary-tint); }

/* ── Modes ──────────────────────────────────────────────────────────────── */

.dc-modes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 0.5rem;
}

.dc-mode-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.5rem;
}

.dc-mode-card--soon {
  opacity: var(--mode-soon-opacity);
}

.dc-mode-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.dc-mode-card__header h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-strong);
}

.dc-mode-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.dc-mode-card__example {
  margin-top: 1rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 0.75rem 1rem;
  font-size: 0.82rem;
  line-height: 1.6;
}

.dc-mode-card__row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
  color: var(--text-muted);
}

.dc-mode-card__row:last-child { margin-bottom: 0; }

.dc-mode-card__label {
  font-weight: 600;
  color: var(--text-strong);
  flex-shrink: 0;
}

/* ── Tags ───────────────────────────────────────────────────────────────── */

.dc-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.2rem 0.55rem;
}

.dc-tag--live {
  background: var(--tag-live-bg);
  color: var(--tag-live-text);
}

.dc-tag--soon {
  background: var(--tag-soon-bg);
  color: var(--tag-soon-text);
}

/* ── Integration tab ────────────────────────────────────────────────────── */

.dc-code-block {
  position: relative;
  background: var(--code-bg);
  border: 1px solid var(--border);
  margin-bottom: 2rem;
  overflow: hidden;
}

.dc-code-block pre {
  margin: 0;
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--code-text);
}

.dc-code-block code {
  font-size: inherit;
  color: inherit;
}

.dc-copy-btn {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: inherit;
  background: rgba(255, 255, 255, 0.08);
  color: #94a3b8;
  border: 1px solid rgba(255, 255, 255, 0.12);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.dc-copy-btn:hover { background: rgba(255, 255, 255, 0.15); color: #f1f5f9; }
.dc-copy-btn.copied { background: #14532d; color: #86efac; border-color: #166534; }

.dc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  margin-bottom: 2rem;
}

.dc-table th,
.dc-table td {
  padding: 0.65rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.dc-table th {
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--surface);
}

.dc-table td:first-child code {
  background: var(--surface-2);
  color: var(--primary);
  padding: 0.2em 0.45em;
  font-size: 0.85em;
  white-space: nowrap;
}

.dc-table td:nth-child(2) { color: var(--text-muted); white-space: nowrap; }

.dc-cta-row {
  margin-top: 1.5rem;
}

.dc-cta-row code {
  background: rgba(255, 255, 255, 0.15);
  padding: 0.1em 0.35em;
  font-size: 0.875em;
}

/* ── Footer ─────────────────────────────────────────────────────────────── */

.dc-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.dc-footer__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 1.5rem 2rem;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
}

.dc-footer__brand .dc-logo {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  display: inline-flex;
}

.dc-footer__brand p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 0.5rem;
}

.dc-footer__email {
  font-size: 0.875rem;
  color: var(--primary);
}

.dc-footer__col h4 {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.9rem;
}

.dc-footer__col {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.dc-footer__col a {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s;
}

.dc-footer__col a:hover { color: var(--text); text-decoration: none; }

.dc-footer__bottom {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── Responsive ─────────────────────────────────────────────────────────── */

@media (max-width: 900px) {
  .dc-modes {
    grid-template-columns: 1fr;
  }

  .dc-footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .dc-footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 700px) {
  .dc-nav { display: none; }

  .dc-hero {
    padding: 3rem 1.5rem 2rem;
  }

  .dc-hero__title {
    font-size: 2rem;
  }

  .dc-theming-grid {
    grid-template-columns: 1fr;
  }

  .dc-footer__inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .dc-footer__brand { grid-column: auto; }

  .dc-tabs__nav { gap: 0; }
  .dc-tab { padding: 0.6rem 0.9rem; font-size: 0.82rem; }
}