/* App — base reset, navigation, announcement bar, tab headers, utilities, responsive
 * Feed cards: feed.css | Modals: modals.css | Generate UI: generate.css
 */

/* All variables live in reasonspring.css — single source of truth */

/* ============================================
   BASE - Reset & Container
   ============================================ */

* {
  -webkit-tap-highlight-color: transparent;
}

/* ============================================
   NAVIGATION - Minimal Top Bar
   ============================================ */

/* ── Announcement Banner ── */
.announce-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--announce-h);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--navy);
  color: var(--white);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  z-index: calc(var(--z-nav) + 1);
}

.has-announce .top-nav {
  top: var(--announce-h);
}

body.has-announce main {
  padding-top: calc(var(--nav-h) + var(--announce-h) + 8px);
}

.top-nav__wordmark {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.01em;
}

.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  max-width: none;
  height: var(--nav-h);
  background: var(--nav-bg);
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  margin: 0;
}

.top-nav__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--nav-text);
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
}

.top-nav__logo:hover {
  color: var(--nav-text);
  text-decoration: none;
}

.top-nav__logo svg {
  stroke: var(--nav-text);
  flex-shrink: 0;
}

.top-nav__link {
  color: var(--nav-text-muted);
  text-decoration: none;
  font-size: 14px;
  padding: 6px 10px;
  border-radius: 8px;
  transition: color 150ms, background 150ms;
}

.top-nav__link:hover {
  color: var(--nav-text);
  background: var(--nav-hover-bg);
}

.top-nav__tabs {
  display: flex;
  gap: 4px;
  align-items: center;
}

.top-nav__tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 10px;
  color: var(--nav-text-dim);
  text-decoration: none;
  font-size: 13px;
  font-weight: var(--font-weight-medium);
  transition: color 150ms, background 150ms;
  white-space: nowrap;
}

.top-nav__tab svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.top-nav__tab-label {
  line-height: 1;
}

.top-nav__tab:hover {
  color: var(--nav-text);
  background: var(--nav-hover-bg);
}

.top-nav__tab--active {
  color: var(--nav-text);
  background: var(--nav-active-bg);
  font-weight: var(--font-weight-semibold);
}

.top-nav__tab--active:hover {
  color: var(--nav-text);
}

/* Mobile: hide tab labels, icon-only */
@media (max-width: 480px) {
  .top-nav__tab-label { display: none; }
  .top-nav__tab { padding: 8px; }
}

/* Mobile-only tabs (e.g. Chat) — hidden on desktop */
@media (min-width: 481px) {
  .top-nav__tab--mobile-only { display: none; }
}

.top-nav__actions {
  display: flex;
  gap: 8px;
  align-items: center;
  position: relative;
}

.top-nav__hamburger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: none;
  background: none;
  color: var(--nav-text-muted);
  cursor: pointer;
  transition: color 150ms, background 150ms;
}

.top-nav__hamburger:hover {
  color: var(--nav-text);
  background: var(--nav-hover-bg);
}

.top-nav__menu {
  display: none;
  position: absolute;
  top: 48px;
  right: 0;
  min-width: 160px;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  border: 1px solid var(--cloud);
  border-radius: 12px;
  padding: 6px;
  box-shadow: var(--shadow-lg);
  z-index: var(--z-nav);
}

/* Admin gear — just a normal .top-nav__tab, no size overrides */
.admin-gear {
  color: var(--nav-text-dim);
}

.top-nav__menu.active {
  display: block;
}

.top-nav__menu-item {
  display: block;
  width: 100%;
  padding: 10px 14px;
  border-radius: 8px;
  border: none;
  background: none;
  color: var(--charcoal);
  font-size: 14px;
  font-family: inherit;
  text-decoration: none;
  text-align: left;
  cursor: pointer;
  transition: background 150ms;
}

.top-nav__menu-item:hover {
  background: var(--pearl);
}

.top-nav__menu-item--danger {
  color: var(--coral);
}

.top-nav__btn {
  background: var(--nav-hover-bg);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--nav-text);
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 150ms;
  white-space: nowrap;
  text-decoration: none;
}

.top-nav__btn:active {
  transform: scale(0.97);
}

.top-nav__btn--primary {
  background: var(--gradient-primary);
  color: white;
  border: none;
  box-shadow: 0 4px 12px rgba(var(--rgb-primary), 0.3);
}

.top-nav__btn--primary:hover {
  box-shadow: 0 6px 16px rgba(var(--rgb-primary), 0.4);
}

/* Talk button — mic icon in top nav */
.top-nav__talk {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--gradient-primary);
  color: var(--white);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 58, 112, 0.35);
  transition: box-shadow 0.2s, transform 0.1s;
  flex-shrink: 0;
}

.top-nav__talk:active {
  transform: scale(0.92);
}

.top-nav__talk svg {
  stroke: var(--text-primary);
  fill: none;
}

.top-nav__talk.connecting {
  animation: top-talk-spin 1s linear infinite;
}

@keyframes top-talk-spin {
  to { transform: rotate(360deg); }
}

.top-nav__talk.connected {
  background: linear-gradient(135deg, var(--color-success), var(--color-success));
  box-shadow: 0 0 0 0 rgba(var(--rgb-success), 0.6);
  animation: top-talk-pulse 2s ease-in-out infinite;
}

@keyframes top-talk-pulse {
  0%, 100% { box-shadow: 0 2px 8px rgba(var(--rgb-success), 0.4); }
  50% { box-shadow: 0 2px 8px rgba(var(--rgb-success), 0.4), 0 0 16px rgba(var(--rgb-success), 0.3); }
}

body {
  font-family: var(--font-body);
  background: var(--deep-space);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
}

/* Offset main content below fixed nav — only when top nav is present (unauthenticated) */
body.has-top-nav main {
  padding-top: 64px;
}

/* Noise Texture Overlay */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* Shared content container — horizontal padding + max-width */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.feed-container {
  max-width: 680px;
  margin: 0 auto;
  padding: 12px var(--space-4);
}

/* Tab header (Library, Profile) */
.tab-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.tab-header__title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.tab-header__count {
  font-size: 13px;
  color: var(--text-muted);
}


/* ============================================
   UTILITY CLASSES
   ============================================ */

.hidden {
  display: none !important;
}

/* Loading Shimmer Effect */
@keyframes shimmer {
  0% {
    background-position: -400px 0;
  }
  100% {
    background-position: 400px 0;
  }
}

.shimmer {
  background: linear-gradient(
    90deg,
    rgba(var(--rgb-white), 0.05) 0%,
    rgba(var(--rgb-white), 0.1) 50%,
    rgba(var(--rgb-white), 0.05) 100%
  );
  background-size: 400px 100%;
  animation: shimmer 1.5s infinite;
}

/* ============================================
   RESPONSIVE - Desktop & Tablet
   ============================================ */

/* Tablet (768px+) */
@media (min-width: 768px) {
  .container {
    padding: 0 24px;
  }

  .feed-container {
    max-width: 680px;
    padding: var(--space-6) 24px;
  }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
  .container {
    padding: 0 32px;
  }

  .feed-container {
    max-width: 680px;
    padding: var(--space-6) 32px;
  }
}

/* Large Desktop (1440px+) */
@media (min-width: 1440px) {
  .container {
    padding: 0 48px;
  }

  .feed-container {
    max-width: 680px;
    padding: var(--space-6) 48px;
  }
}