/* ============================================
   ANTHEM FLL — BIOGLOW THEME
   Bioluminescent forest: deep greens, cyan glows,
   warm amber accents. Lush but readable.
   ============================================ */

:root {
  --bg-deep:       #060e0a;
  --bg-mid:        #0b1a10;
  --bg-surface:    #111f15;
  --bg-card:       #152019;
  --bg-card-hover: #1c2e22;

  --green-dark:    #1a3d25;
  --green-mid:     #2d6b3e;
  --green-bright:  #4caf72;
  --green-glow:    #52e87a;

  --cyan-soft:     #7fffd4;
  --cyan-glow:     #00ffe0;
  --cyan-dim:      rgba(127,255,212,0.15);

  --amber:         #f5a623;
  --amber-glow:    #ffcf6b;
  --amber-dim:     rgba(245,166,35,0.12);

  --text-primary:  #e8f5ec;
  --text-secondary:#9dbfa8;
  --text-muted:    #5a7a63;

  --border:        rgba(76,175,114,0.18);
  --border-bright: rgba(127,255,212,0.35);

  --font-display:  'Syne', sans-serif;
  --font-body:     'DM Sans', sans-serif;

  --radius-sm:     8px;
  --radius-md:     14px;
  --radius-lg:     22px;
  --radius-xl:     32px;

  --glow-green:    0 0 30px rgba(82,232,122,0.25);
  --glow-cyan:     0 0 30px rgba(0,255,224,0.2);
  --glow-amber:    0 0 30px rgba(245,166,35,0.25);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

a { text-decoration: none; color: inherit; }

/* ============================================
   ANIMATED BACKGROUND
   ============================================ */
.bg-layer {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: drift 20s ease-in-out infinite;
}

.orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(44,107,62,0.35), transparent 70%);
  top: -200px; left: -150px;
  animation-delay: 0s;
}

.orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(0,255,224,0.12), transparent 70%);
  top: 40%; right: -180px;
  animation-delay: -7s;
}

.orb-3 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(245,166,35,0.1), transparent 70%);
  bottom: -100px; left: 30%;
  animation-delay: -14s;
}

@keyframes drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(40px, -30px) scale(1.05); }
  66%       { transform: translate(-30px, 20px) scale(0.95); }
}

.spore-field { position: absolute; inset: 0; }
.spore {
  position: absolute;
  border-radius: 50%;
  background: var(--cyan-glow);
  box-shadow: 0 0 8px 2px rgba(0,255,224,0.6);
  animation: sporeFloat linear infinite;
  opacity: 0;
}

@keyframes sporeFloat {
  0%   { transform: translateY(100vh) translateX(0); opacity: 0; }
  10%  { opacity: 0.7; }
  90%  { opacity: 0.5; }
  100% { transform: translateY(-100px) translateX(var(--drift)); opacity: 0; }
}

/* ============================================
   NAV
   ============================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6,14,10,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--green-glow);
  white-space: nowrap;
}

.logo-icon { font-size: 1.3rem; }

.nav-links {
  display: flex;
  gap: 4px;
  flex: 1;
}

.nav-link {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.2s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--cyan-soft);
  background: var(--cyan-dim);
}

.nav-menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 38px; height: 38px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1.1rem;
  margin-left: auto;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 8px 24px 16px;
  gap: 4px;
  border-top: 1px solid var(--border);
}

.mobile-menu.open { display: flex; }

.mobile-link {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 1rem;
  transition: all 0.2s;
}

.mobile-link:hover { color: var(--cyan-soft); background: var(--cyan-dim); }

@media (max-width: 700px) {
  .nav-links { display: none; }
  .nav-menu-btn { display: flex; align-items: center; justify-content: center; }
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 100px 24px 80px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  background: var(--amber-dim);
  border: 1px solid rgba(245,166,35,0.3);
  color: var(--amber-glow);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 5px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1;
  margin-bottom: 16px;
}

.title-line {
  display: block;
  font-size: clamp(2rem, 6vw, 3.5rem);
  color: var(--text-secondary);
  letter-spacing: 0.08em;
}

.title-line.accent {
  font-size: clamp(3.5rem, 12vw, 7rem);
  color: var(--green-glow);
  text-shadow: 0 0 60px rgba(82,232,122,0.5), 0 0 120px rgba(82,232,122,0.2);
  letter-spacing: -0.02em;
}

.hero-sub {
  color: var(--text-muted);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.hero-tagline {
  color: var(--cyan-soft);
  font-style: italic;
  font-size: 1.2rem;
  font-weight: 300;
  margin-bottom: 40px;
  opacity: 0.85;
}

.hero-cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  transition: all 0.2s;
  cursor: pointer;
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: var(--green-glow);
  color: var(--bg-deep);
  box-shadow: var(--glow-green);
}

.btn-primary:hover {
  background: var(--cyan-soft);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--green-glow);
  border: 1px solid var(--green-glow);
}

.btn-secondary:hover {
  background: rgba(82,232,122,0.1);
  transform: translateY(-2px);
}

.btn-amber {
  background: var(--amber);
  color: var(--bg-deep);
  box-shadow: var(--glow-amber);
}

.btn-amber:hover {
  background: var(--amber-glow);
  transform: translateY(-2px);
}

/* ============================================
   CARDS GRID
   ============================================ */
.cards-section {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all 0.25s;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.25s;
  border-radius: inherit;
}

.card-notes::before   { background: linear-gradient(135deg, rgba(76,175,114,0.08), transparent); }
.card-homework::before { background: linear-gradient(135deg, rgba(0,255,224,0.08), transparent); }
.card-resources::before { background: linear-gradient(135deg, rgba(245,166,35,0.08), transparent); }
.card-videos::before  { background: linear-gradient(135deg, rgba(127,255,212,0.08), transparent); }

.card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  border-color: var(--border-bright);
  box-shadow: var(--glow-green);
}

.card:hover::before { opacity: 1; }

.card-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.card-content { flex: 1; }

.card-content h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.card-content p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.card-arrow {
  font-size: 1.2rem;
  color: var(--text-muted);
  transition: all 0.2s;
}

.card:hover .card-arrow {
  color: var(--green-glow);
  transform: translateX(4px);
}

/* ============================================
   THEME SECTION
   ============================================ */
.theme-section {
  position: relative;
  z-index: 1;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 24px;
}

.theme-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

@media (max-width: 768px) {
  .theme-inner { grid-template-columns: 1fr; gap: 40px; }
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 14px;
}

.theme-text h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  color: var(--text-primary);
  margin-bottom: 20px;
  line-height: 1.2;
}

.theme-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.theme-text em { color: var(--cyan-soft); font-style: normal; }

.theme-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: start;
  padding-top: 8px;
}

.topic-chip {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 0.88rem;
  font-weight: 500;
  transition: all 0.2s;
  cursor: default;
}

.topic-chip:hover {
  border-color: var(--green-glow);
  color: var(--green-glow);
  background: rgba(82,232,122,0.08);
  box-shadow: var(--glow-green);
}

/* ============================================
   PAGE HEADERS (used on sub-pages)
   ============================================ */
.page-header {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 70px 24px 40px;
}

.page-header .back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 24px;
  transition: color 0.2s;
}

.page-header .back-link:hover { color: var(--green-glow); }

.page-header h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 12px;
}

.page-header h1 .highlight {
  color: var(--green-glow);
  text-shadow: 0 0 40px rgba(82,232,122,0.4);
}

.page-header p {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* ============================================
   CONTENT AREA
   ============================================ */
.content-area {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px 100px;
}

/* ============================================
   LOADING / EMPTY STATES
   ============================================ */
.loading-state, .empty-state {
  text-align: center;
  padding: 60px 24px;
  color: var(--text-muted);
}

.loading-spinner {
  width: 40px; height: 40px;
  border: 2px solid var(--border);
  border-top-color: var(--green-glow);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}

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

.empty-state .empty-icon { font-size: 3rem; margin-bottom: 16px; }
.empty-state h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

/* ============================================
   NOTICE / INFO BOXES
   ============================================ */
.notice {
  background: var(--amber-dim);
  border: 1px solid rgba(245,166,35,0.25);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  color: var(--amber-glow);
  font-size: 0.9rem;
  margin-bottom: 24px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.notice-icon { flex-shrink: 0; }

/* ============================================
   MEETING NOTES
   ============================================ */
.notes-list { display: flex; flex-direction: column; gap: 16px; }

.note-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.2s;
}

.note-card:hover { border-color: var(--border-bright); }

.note-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  user-select: none;
}

.note-date {
  background: rgba(82,232,122,0.1);
  border: 1px solid rgba(82,232,122,0.2);
  color: var(--green-glow);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  border-radius: 100px;
  white-space: nowrap;
}

.note-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  flex: 1;
}

.note-toggle {
  color: var(--text-muted);
  font-size: 1.2rem;
  transition: transform 0.2s;
}

.note-card.open .note-toggle { transform: rotate(180deg); }

.note-body {
  display: none;
  padding: 0 24px 24px;
  border-top: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

.note-card.open .note-body { display: block; }

.note-body ul { padding-left: 20px; margin: 8px 0; }
.note-body li { margin-bottom: 6px; }
.note-body strong { color: var(--text-primary); }
.note-body a { color: var(--cyan-soft); text-decoration: underline; text-underline-offset: 3px; }

/* ============================================
   HOMEWORK TRACKER
   ============================================ */
.hw-section { margin-bottom: 40px; }

.hw-section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.hw-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  transition: all 0.2s;
}

.hw-item.done {
  opacity: 0.5;
  background: var(--bg-surface);
}

.hw-item.done .hw-title { text-decoration: line-through; }

.hw-checkbox {
  width: 22px; height: 22px;
  border: 2px solid var(--green-mid);
  border-radius: 6px;
  flex-shrink: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  margin-top: 1px;
  font-size: 0.8rem;
}

.hw-checkbox.checked {
  background: var(--green-glow);
  border-color: var(--green-glow);
  color: var(--bg-deep);
}

.hw-info { flex: 1; }

.hw-title {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.hw-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hw-due {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.hw-due.urgent { color: var(--amber); }

.hw-tag {
  font-size: 0.75rem;
  background: var(--cyan-dim);
  color: var(--cyan-soft);
  padding: 2px 8px;
  border-radius: 100px;
}

.hw-submit-link {
  font-size: 0.82rem;
  color: var(--green-glow);
  text-decoration: underline;
  text-underline-offset: 2px;
  white-space: nowrap;
  margin-top: 2px;
}

/* ============================================
   RESOURCES
   ============================================ */
.resource-group { margin-bottom: 40px; }

.resource-group-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.88rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 14px;
}

.resource-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 8px;
  transition: all 0.2s;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.resource-link:hover {
  border-color: var(--border-bright);
  color: var(--cyan-soft);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

.resource-link .r-icon { font-size: 1.2rem; flex-shrink: 0; }
.resource-link .r-name { flex: 1; font-weight: 500; }
.resource-link .r-ext { font-size: 0.78rem; color: var(--text-muted); }

/* ============================================
   VIDEOS
   ============================================ */
.video-topic { margin-bottom: 56px; }

.video-topic-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.video-topic-icon { font-size: 1.8rem; }

.video-topic-header h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
}

.video-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

@media (max-width: 600px) {
  .video-pair { grid-template-columns: 1fr; }
}

.video-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.video-card:hover {
  border-color: var(--border-bright);
  background: var(--bg-card-hover);
}

.video-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 100px;
  width: fit-content;
}

.video-badge.short {
  background: rgba(0,255,224,0.1);
  color: var(--cyan-soft);
  border: 1px solid rgba(0,255,224,0.2);
}

.video-badge.long {
  background: var(--amber-dim);
  color: var(--amber-glow);
  border: 1px solid rgba(245,166,35,0.2);
}

.video-card h4 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.3;
}

.video-card p {
  font-size: 0.84rem;
  color: var(--text-muted);
  flex: 1;
}

.video-watch-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(82,232,122,0.1);
  border: 1px solid rgba(82,232,122,0.25);
  color: var(--green-glow);
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  transition: all 0.2s;
  width: fit-content;
}

.video-watch-btn:hover {
  background: rgba(82,232,122,0.2);
  transform: translateY(-1px);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 24px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ============================================
   GOOGLE SHEETS STATUS
   ============================================ */
.sheets-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.sheets-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--text-muted);
}

.sheets-dot.live {
  background: var(--green-glow);
  box-shadow: 0 0 6px var(--green-glow);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ============================================
   UTILITIES
   ============================================ */
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }