/* theme.css — Theme overrides for the LIGHT (default) theme.
 *
 * The default theme is LIGHT ("coffee paper") — see :root in base.css
 * for the token values. This file holds:
 *
 *   1. Decorations that only apply in light mode (paper texture).
 *   2. Surfaces that stay dark even in light mode for legibility
 *      (JSON code blocks).
 *   3. [data-theme="dark"] overrides for any value that needs to
 *      differ between themes (currently mainly the scrolled-nav
 *      background, JSON block darkness, the nav overlay tint, the
 *      theme-toggle :active background, the bottom-text text shadow,
 *      and the loader glow shadows).
 *   4. Logo swap (light by default, dark when [data-theme="dark"]).
 *   5. Smooth theme-transition properties.
 */

/* ── Paper Texture (light-only) ────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='paper'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='5' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23paper)' opacity='0.08'/%3E%3C/svg%3E");
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
}

/* ── JSON & code blocks stay dark in BOTH themes ───────── */
/*
 * The interior stays dark in both modes because the syntax
 * highlighter is calibrated for a dark background. The border,
 * however, follows the theme so the block integrates with the
 * page (tan in light, dark in dark).
 */
.json-block {
  background: #1a1610;
  border-color: var(--color-border);
  border-left-color: var(--color-cyan);
}

.json-block__header {
  background: #1e1a12;
  border-bottom-color: var(--color-border);
}

.json-block pre {
  background: #1a1610;
  color: #d4c8b0;
}

/* In dark mode, JSON uses an even-darker base (the original colors
   from the dark theme — better for the bright-on-dark syntax palette). */
[data-theme="dark"] .json-block {
  background: #04040a;
  border-color: var(--color-border);
}

[data-theme="dark"] .json-block__header {
  background: var(--color-surface-1);
  border-bottom-color: var(--color-border);
}

[data-theme="dark"] .json-block pre {
  background: #04040a;
  color: var(--color-text);
}

/* ── Stat-card numbers — keep cyan accent in both themes ── */
.stat-card__number {
  color: var(--color-cyan);
}

/* ── Nav scrolled background ──────────────────────────── */
.nav.scrolled {
  background: rgba(240, 234, 214, 0.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--color-border);
}

[data-theme="dark"] .nav.scrolled {
  background: rgba(8, 8, 8, 0.92);
}

.nav__toggle span {
  background: var(--color-text);
}

.nav__overlay {
  background: rgba(245, 240, 232, 0.98);
}

[data-theme="dark"] .nav__overlay {
  background: rgba(0, 0, 0, 0.97);
}

.nav__overlay .theme-toggle {
  margin-top: 24px;
  padding: 12px 28px;
  font-size: 0.85rem;
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  background: transparent;
  cursor: pointer;
  letter-spacing: 0.15em;
}

.nav__overlay .theme-toggle:hover,
.nav__overlay .theme-toggle:focus {
  border-color: var(--color-cyan);
  color: var(--color-cyan);
}

.nav__overlay .theme-toggle:active {
  background: rgba(10, 122, 158, 0.15);
  transform: scale(0.96);
}

[data-theme="dark"] .nav__overlay .theme-toggle:active {
  background: rgba(0, 229, 255, 0.15);
}

.nav__overlay .nav-link {
  color: var(--color-text);
}

.nav__logo {
  color: var(--color-cyan);
}

@media (min-width: 901px) {
  .nav__overlay .theme-toggle {
    display: none;
  }
}

/* ── Hero ──────────────────────────────────────────────── */
.hero {
  background: var(--color-void);
}

.hero::before {
  opacity: 0.02;
}

.hero::after {
  background: radial-gradient(circle, rgba(10, 122, 158, 0.06) 0%, transparent 70%);
}

[data-theme="dark"] .hero::before {
  opacity: 0.03;
}

[data-theme="dark"] .hero::after {
  background: radial-gradient(circle, rgba(0, 229, 255, 0.06) 0%, transparent 70%);
}

.hero__eyebrow {
  color: var(--color-cyan);
}

.hero__subtitle {
  color: var(--color-muted);
}

.hero__scroll {
  color: var(--color-ghost);
}

/* ── Cards ─────────────────────────────────────────────── */
.card,
.task-card,
.organizer-card,
.metric-row,
.task-organizer,
.experience-card {
  background: var(--color-surface-1);
  border-color: var(--color-border);
}

.card:hover,
.task-card:hover,
.metric-row:hover {
  border-color: var(--color-border-lit);
  background: var(--color-surface-2);
}

/* ── Tables ────────────────────────────────────────────── */
thead {
  background: var(--color-surface-2);
}

tbody tr:nth-child(even) {
  background: rgba(229, 220, 198, 0.4);
}

[data-theme="dark"] tbody tr:nth-child(even) {
  background: rgba(19, 19, 26, 0.4);
}

tbody tr:hover {
  background: rgba(10, 122, 158, 0.06);
}

[data-theme="dark"] tbody tr:hover {
  background: rgba(0, 229, 255, 0.03);
}

/* ── Badges ────────────────────────────────────────────── */
.badge--cyan {
  background: rgba(10, 122, 158, 0.08);
  border-color: rgba(10, 122, 158, 0.25);
  color: var(--color-cyan);
}

.badge--violet {
  background: rgba(106, 66, 196, 0.08);
  border-color: rgba(106, 66, 196, 0.25);
  color: var(--color-violet);
}

.badge--ghost {
  color: var(--color-ghost);
  border-color: var(--color-ghost);
}

.weight-badge {
  background: rgba(184, 122, 32, 0.08);
  border-color: rgba(184, 122, 32, 0.25);
  color: var(--color-amber);
}

/* ── Scrollbar ─────────────────────────────────────────── */
::-webkit-scrollbar-track {
  background: var(--color-abyss);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: var(--color-border-lit);
}

/* ── Footer ────────────────────────────────────────────── */
.footer {
  border-top-color: var(--color-border);
}

.footer__text {
  color: var(--color-muted);
}

/* ── Date badge ────────────────────────────────────────── */
.date-badge {
  background: rgba(10, 122, 158, 0.06);
  border-color: rgba(10, 122, 158, 0.15);
  color: var(--color-cyan);
}

.date-badge--active {
  background: rgba(10, 122, 158, 0.12);
  border-color: rgba(10, 122, 158, 0.35);
}

.tl-item.past .date-badge,
.tl-item.active .date-badge {
  border-color: var(--color-cyan);
  color: var(--color-cyan);
  background: rgba(10, 122, 158, 0.06);
}

/* ── Sidebar ───────────────────────────────────────────── */
.sidebar {
  border-right-color: var(--color-border);
}

.sidebar__link {
  color: var(--color-muted);
}

.sidebar__link.active {
  color: var(--color-cyan);
  border-left-color: var(--color-cyan);
}

/* ── Inline code ───────────────────────────────────────── */
code {
  background: var(--color-surface-2);
  border-color: var(--color-border);
  color: var(--color-cyan);
}

/* ── Timeline ──────────────────────────────────────────── */
.tl-track::before {
  background: var(--color-border);
}

.tl-item.past .tl-event {
  color: var(--color-muted);
}

.tl-event {
  color: var(--color-text);
}

.tl-cl,
.tl-cr {
  background: var(--color-border);
}

.tl-item.future .tl-cl,
.tl-item.future .tl-cr {
  background: var(--color-ghost);
}

.tl-dot {
  background: var(--color-void);
}

.tl-item.past .tl-dot {
  background: var(--color-cyan);
}

/* ── Stat cards ────────────────────────────────────────── */
.stat-card__label {
  color: var(--color-muted);
}

.stat-card__desc {
  color: var(--color-ghost);
}

/* ── Metric descriptions ───────────────────────────────── */
.metric-row__desc {
  color: var(--color-muted);
}

.metric-row__desc em {
  color: var(--color-cyan);
}

/* ── Register section ──────────────────────────────────── */
.section-register {
  background: var(--color-surface-1);
}

.register__coming-soon {
  color: var(--color-ghost);
}

/* ── Task section eyebrow ──────────────────────────────── */
.task-section__eyebrow {
  color: var(--color-ghost);
}

/* ── Organizer card details ────────────────────────────── */
.organizer-card__email {
  color: var(--color-cyan);
}

.organizer-card__affiliation {
  color: var(--color-muted);
}

.organizer-card__role {
  color: var(--color-violet);
}

/* ── Theme toggle button ───────────────────────────────── */
.theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  padding: 6px 14px;
  border-radius: 2px;
  cursor: pointer;
  transition: all var(--dur-fast);
  white-space: nowrap;
  text-transform: uppercase;
}

.theme-toggle:hover {
  border-color: var(--color-cyan);
  color: var(--color-cyan);
}

.theme-toggle:active {
  background: rgba(10, 122, 158, 0.1);
  transform: scale(0.96);
}

[data-theme="dark"] .theme-toggle:active {
  background: rgba(0, 229, 255, 0.1);
}

/* ════════════════════════════════════════════════════════ */
/* LOGO SWAP — default is light, dark theme shows the dark logo  */
/* ════════════════════════════════════════════════════════ */
.logo-light { display: block; }
.logo-dark  { display: none; }

[data-theme="dark"] .logo-light { display: none; }
[data-theme="dark"] .logo-dark  { display: block; }

/* Logo background in light mode for visibility (tan backdrop) */
.nav__logo img {
  background: #c9bda4;
  border-radius: 4px;
  padding: 2px;
}

.hero__logo {
  background: #c9bda4;
  border-radius: 8px;
  padding: 8px;
}

.loader-logo-img {
  background: #c9bda4;
  border-radius: 6px;
  padding: 4px;
}

/* ════════════════════════════════════════════════════════ */
/* SMOOTH TRANSITIONS — animate theme changes              */
/* ════════════════════════════════════════════════════════ */
html {
  transition: background-color 0.3s ease, color 0.3s ease;
}

body {
  transition: background-color 0.3s ease, color 0.3s ease;
}

.card,
.task-card,
.organizer-card,
.metric-row,
.json-block,
.json-block__header,
.json-block pre,
.nav,
.nav__overlay,
.footer,
.tl-track::after,
.tl-dot,
.tl-cl,
.tl-cr,
.date-badge {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}