:root {
  --remic-blue: #0F4761;
  --remic-blue-dark: #0A3447;
  --remic-blue-soft: #EAF3F7;
  --remic-gold: #B8860B;
  --remic-gold-dark: #8E6508;
  --remic-ink: #16232B;
  --remic-muted: #5B6B75;
  --remic-border: #DCE6EA;
  --bs-primary: var(--remic-blue);
  --bs-primary-rgb: 15, 71, 97;
  --bs-body-color: var(--remic-ink);
  --bs-link-color: var(--remic-blue);
  --bs-link-hover-color: var(--remic-blue-dark);
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--remic-ink);
  background: #fff;
}

.py-lg-6 { padding-top: 5rem; padding-bottom: 5rem; }

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--remic-blue);
  color: #fff;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.navbar-brand { color: var(--remic-blue); }
.site-header { box-shadow: 0 0.25rem 1rem rgba(15, 71, 97, 0.06); }

.btn-primary {
  --bs-btn-bg: var(--remic-blue);
  --bs-btn-border-color: var(--remic-blue);
  --bs-btn-hover-bg: var(--remic-blue-dark);
  --bs-btn-hover-border-color: var(--remic-blue-dark);
}

.btn-outline-primary {
  --bs-btn-color: var(--remic-blue);
  --bs-btn-border-color: var(--remic-blue);
  --bs-btn-hover-bg: var(--remic-blue);
  --bs-btn-hover-border-color: var(--remic-blue);
}

.btn-gold {
  --bs-btn-color: #fff;
  --bs-btn-bg: var(--remic-gold);
  --bs-btn-border-color: var(--remic-gold);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-bg: var(--remic-gold-dark);
  --bs-btn-hover-border-color: var(--remic-gold-dark);
}

.hero-section {
  background: linear-gradient(135deg, #f8fbfc 0%, #eef6f9 50%, #ffffff 100%);
}

.hero-bg-shape {
  position: absolute;
  inset: auto -10rem -12rem auto;
  width: 30rem;
  height: 30rem;
  border-radius: 50%;
  background: rgba(184, 134, 11, 0.13);
  filter: blur(0.5rem);
}

.eyebrow {
  color: var(--remic-gold);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.11em;
  font-weight: 800;
}

.trust-badge {
  background: #fff;
  color: var(--remic-blue);
  border: 1px solid var(--remic-border);
  padding: 0.55rem 0.7rem;
}

.signup-card,
.feature-card,
.testimonial-card,
.mini-stat,
.quick-card {
  border: 1px solid var(--remic-border);
  border-radius: 1rem;
  background: #fff;
}

.video-placeholder {
  background: radial-gradient(circle at 20% 20%, rgba(184, 134, 11, 0.55), transparent 28%), linear-gradient(135deg, var(--remic-blue), var(--remic-blue-dark));
}

.play-circle {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.mini-stat {
  padding: 1rem;
}
.mini-stat strong {
  display: block;
  color: var(--remic-blue);
  font-size: 1.2rem;
}
.mini-stat span {
  display: block;
  color: var(--remic-muted);
  font-size: 0.85rem;
}

.feature-card,
.testimonial-card {
  padding: 1.5rem;
}
.feature-icon,
.quick-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.75rem;
  background: var(--remic-blue-soft);
  color: var(--remic-blue);
  font-weight: 800;
  margin-bottom: 1rem;
}

.bg-soft { background: var(--remic-blue-soft); }
.profile-placeholder {
  min-height: 18rem;
  background: linear-gradient(135deg, rgba(15, 71, 97, 0.18), rgba(184, 134, 11, 0.2));
  border: 1px dashed rgba(15, 71, 97, 0.35);
}
.alert-remic {
  background: #fff7e2;
  border-color: rgba(184, 134, 11, 0.3);
  color: #5e460d;
}
.cta-band { background: linear-gradient(135deg, var(--remic-blue), var(--remic-blue-dark)); }

/* App layout */
.app-body { background: #f6f9fb; }
.app-topbar { min-height: 4.25rem; }
.min-vh-app { min-height: calc(100vh - 4.25rem); }
.app-sidebar { min-height: calc(100vh - 4.25rem); }
.app-content { background: #f6f9fb; }
.side-panel-stack { top: 5.25rem; }

.conversation-list .list-group-item {
  border-color: var(--remic-border);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.conversation-list .list-group-item.active {
  background: var(--remic-blue);
  border-color: var(--remic-blue);
}
.conversation-list small { opacity: 0.75; }

.welcome-card {
  background: linear-gradient(135deg, #ffffff 0%, #eef6f9 100%);
  border: 1px solid var(--remic-border);
}
.quick-card {
  display: block;
  padding: 1rem;
  text-decoration: none;
  color: var(--remic-ink);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.quick-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 0.75rem 1.75rem rgba(15, 71, 97, 0.12);
}
.quick-card strong,
.quick-card small { display: block; }
.quick-card small { color: var(--remic-muted); }

.chat-window {
  min-height: 32rem;
  max-height: 58vh;
  overflow-y: auto;
  background: linear-gradient(180deg, #ffffff, #f8fbfc);
}
.message-row {
  display: flex;
  margin-bottom: 1rem;
}
.message-row.student-message { justify-content: flex-end; }
.message-bubble {
  max-width: min(42rem, 88%);
  border-radius: 1rem;
  padding: 1rem;
  border: 1px solid var(--remic-border);
  background: #fff;
}
.student-message .message-bubble {
  background: var(--remic-blue);
  color: #fff;
  border-color: var(--remic-blue);
}
.message-bubble p:last-child { margin-bottom: 0; }
.chat-form textarea { resize: none; }

@media (max-width: 991.98px) {
  .py-lg-6 { padding-top: 3rem; padding-bottom: 3rem; }
  .chat-window { min-height: 24rem; max-height: none; }
}

/* In-page anchor offsets. The landing header is intentionally not sticky, but these offsets
   keep anchor targets comfortable if the header is made sticky again later. */
html {
  scroll-padding-top: 5rem;
}

#signup,
#what-it-is,
#who-built-it,
#student-feedback,
#study-guide,
#orientation,
#chat-panel,
#intro-video,
#privacy-note {
  scroll-margin-top: 5rem;
}

/* Fixes: keep the app header dropdown above sticky content cards */
.site-header.app-topbar {
  z-index: 1080;
}

.site-header.app-topbar .dropdown-menu {
  z-index: 1090;
}

.side-panel-stack {
  z-index: 1;
}

/* Legal page */
.legal-hero {
  background: linear-gradient(135deg, #f8fbfc 0%, #eef6f9 65%, #ffffff 100%);
}

.legal-card {
  border: 1px solid var(--remic-border);
  border-radius: 1rem;
  background: #fff;
  padding: clamp(1.25rem, 3vw, 2.5rem);
  box-shadow: 0 0.75rem 2rem rgba(15, 71, 97, 0.08);
}

.legal-section {
  scroll-margin-top: 5rem;
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--remic-border);
}

.legal-section:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.legal-section h2 {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 0.85rem;
  color: var(--remic-blue);
}

.legal-section p,
.legal-section li {
  color: var(--remic-muted);
}

.legal-toc {
  top: 1.5rem;
  border: 1px solid var(--remic-border);
  border-radius: 1rem;
  background: #fff;
  padding: 1rem;
}

.legal-toc a {
  display: inline-block;
  padding: 0.2rem 0;
  text-decoration: none;
}

.legal-toc a:hover {
  text-decoration: underline;
}