/* =============================================
   NEXUS STUDY — resumo.css  (v4)
   Tela de Resumos com Sidebar de Disciplinas
   + Cores dinâmicas por disciplina via --disc-tema
   ============================================= */

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

:root {
  --bg:          #070b14;
  --surface:     #0e1420;
  --surface-2:   #141c2e;
  --surface-3:   #1a2440;
  --border:      rgba(255,255,255,0.07);
  --border-glow: rgba(255,255,255,0.14);

  --gold:      #e8c97a;  --gold-dim:   rgba(232,201,122,0.13);
  --teal:      #4dd9b4;  --teal-dim:   rgba(77,217,180,0.11);
  --rose:      #e87a9a;  --rose-dim:   rgba(232,122,154,0.11);
  --blue:      #7aa8e8;  --blue-dim:   rgba(122,168,232,0.11);
  --amber:     #f59e0b;  --amber-dim:  rgba(245,158,11,0.11);
  --violet:    #a78bfa;  --violet-dim: rgba(167,139,250,0.11);

  /* Cor dinâmica da disciplina — sobrescrita pelo JS */
  --disc-tema:     #4dd9b4;
  --disc-tema-rgb: 77, 217, 180;
  --disc-tema2:    #7aa8e8;

  --text-1: #f0ede6;
  --text-2: #a8a49c;
  --text-3: #a89797;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;
  --font-bb:  'Bodoni Moda', serif;

  --sidebar-w: 230px;
  --header-h:  60px;
  --radius-lg: 18px;
  --radius-md: 12px;
}

html { scroll-behavior: smooth; }


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

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(var(--disc-tema-rgb), 0.2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(var(--disc-tema-rgb), 0.38); }


/* ══════════════════════════════════════════
   HEADER
══════════════════════════════════════════ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  padding: 0 1.5rem;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(18px);
  background: rgba(7,11,20,0.75);
}
.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: relative;
}

.header__left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}
.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem 0.35rem 0.65rem;
  border-radius: 10px;
  border: 1px solid var(--border-glow);
  color: var(--text-2);
  background: rgba(255,255,255,0.04);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: color 0.2s, border-color 0.2s, background 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}
.btn-back:hover {
  color: var(--disc-tema);
  border-color: rgba(var(--disc-tema-rgb), 0.35);
  background: rgba(var(--disc-tema-rgb), 0.07);
  box-shadow: 0 0 12px rgba(var(--disc-tema-rgb), 0.12);
}
.btn-back__label { font-weight: 600; }

.header__divider {
  width: 1px; height: 22px;
  background: var(--border-glow);
  flex-shrink: 0;
}
.header__logo { display: flex; align-items: center; gap: 0.55rem; }
.logo-mark {
  width: 32px; height: 32px; border-radius: 9px;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: 1.05rem; font-weight: 700;
  color: var(--bg); flex-shrink: 0;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-title { font-family: var(--font-display); font-size: 1.05rem; font-weight: 600; color: var(--text-1); }
.logo-sub { font-size: 0.58rem; font-weight: 500; letter-spacing: 0.18em; text-transform: uppercase; color: var(--teal); }
.header__center {
  position: absolute;
  left: calc(50% + 30px);
  transform: translateX(-50%);
  font-size: 0.75rem; font-weight: 500;
  letter-spacing: 0.07em; text-transform: uppercase; color: var(--text-3);
  white-space: nowrap;
  pointer-events: none;
}

.header__center span { color: var(--disc-tema); transition: color 0.4s; }

.header__right {
  flex: 0 1 auto;
  min-width: 0;
  max-width: 300px;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ── disc-badge e status-badge partilham a mesma "caixa" ── */
.disc-badge,
.status-badge {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.5rem 0.9rem;
  border-radius: 99px;
  white-space: nowrap;
  width: 100%;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1;
  transition: color 0.4s, background 0.4s, border-color 0.4s;
}

.disc-badge {
  border: 1px solid rgba(var(--disc-tema-rgb), 0.25);
  color: var(--disc-tema);
  background: rgba(var(--disc-tema-rgb), 0.11);
}

.status-badge--empty {
  color: var(--text-3);
  border: 1px solid rgba(168, 164, 156, 0.25);
  background: rgba(255, 255, 255, 0.04);
}

.status-badge--ok {
  color: var(--disc-tema);
  border: 1px solid rgba(var(--disc-tema-rgb), 0.25);
  background: rgba(var(--disc-tema-rgb), 0.07);
}

/* ══════════════════════════════════════════
   LAYOUT
══════════════════════════════════════════ */
.layout {
  display: flex;
  min-height: 100vh;
  padding-top: var(--header-h);
  position: relative;
  z-index: 2;
}

/* ══════════════════════════════════════════
   SIDEBAR
══════════════════════════════════════════ */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  position: sticky;
  top: var(--header-h);
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  border-right: 1px solid var(--border);
  background: rgba(7,11,20,0.5);
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  animation: slide-in-left 0.4s ease both;
}
@keyframes slide-in-left {
  from { opacity: 0; transform: translateX(-12px); }
  to   { opacity: 1; transform: translateX(0); }
}
.sidebar__header {
  padding: 1.25rem 1.1rem 0.85rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.sidebar__title {
  font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-3);
}

.sidebar__semestre {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.3rem 0.65rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #a8a49c;
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(6px);
  transition: border-color 0.2s, color 0.2s;
}

.disc-list {
  flex: 1;
  padding: 0.65rem 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.disc-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  background: transparent;
  text-align: left;
  width: 100%;
  font-family: var(--font-body);
  position: relative;
  overflow: hidden;
}
.disc-item::before {
  content: '';
  position: absolute;
  left: 0; top: 20%; bottom: 20%;
  width: 2px;
  border-radius: 2px;
  background: var(--disc-tema);
  opacity: 0;
  transition: opacity 0.2s, background 0.4s;
}
.disc-item:hover {
  background: rgba(255,255,255,0.04);
  border-color: var(--border-glow);
}
.disc-item--active {
  background: rgba(var(--disc-tema-rgb), 0.07);
  border-color: rgba(var(--disc-tema-rgb), 0.22);
}
.disc-item--active::before { opacity: 1; }

.disc-item__emoji {
  font-size: 1.1rem;
  flex-shrink: 0;
  width: 28px;
  text-align: center;
  filter: grayscale(0.3);
  transition: filter 0.2s;
}
.disc-item--active .disc-item__emoji { filter: grayscale(0); }

.disc-item__info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.disc-item__nome {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.2s;
  line-height: 1.2;
}
.disc-item--active .disc-item__nome { color: var(--text-1); font-weight: 600; }
.disc-item:hover .disc-item__nome   { color: var(--text-1); }

.disc-item__status {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.disc-item__status--ok    { color: #4dd9b4; }
.disc-item__status--empty { color: var(--text-3); }
.disc-item__status--hint  { color: var(--text-3); opacity: 0.6; }

.disc-item__chevron {
  width: 14px; height: 14px;
  color: var(--text-3);
  flex-shrink: 0;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.2s, transform 0.2s, color 0.2s;
}
.disc-item--active .disc-item__chevron,
.disc-item:hover .disc-item__chevron {
  opacity: 1;
  transform: translateX(0);
}
.disc-item--active .disc-item__chevron { color: var(--disc-tema); }

.sidebar__footer {
  padding: 0.9rem 1.1rem;
  border-top: 1px solid var(--border);
  font-size: 0.6rem;
  color: var(--text-3);
  letter-spacing: 0.06em;
  flex-shrink: 0;
}

/* ══════════════════════════════════════════
   CONTENT AREA
══════════════════════════════════════════ */
.content-area {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

/* ══════════════════════════════════════════
   PAGE HERO
══════════════════════════════════════════ */
.page-hero {
  padding: 2.5rem 2rem 1.75rem;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(var(--disc-tema-rgb), 0.025) 0%, transparent 100%);
  animation: fade-up 0.5s ease both;
  transition: background 0.4s;
}
.page-hero__inner { max-width: 720px; }

.page-hero__eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.68rem; font-weight: 700;
  letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--disc-tema);
  margin-bottom: 0.6rem;
  transition: color 0.4s;
}
.eyebrow-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--disc-tema);
  box-shadow: 0 0 8px var(--disc-tema);
  animation: pulse-dot 2s ease-in-out infinite;
  transition: background 0.4s, box-shadow 0.4s;
}
@keyframes pulse-dot { 0%,100%{opacity:1} 50%{opacity:.3} }

.page-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700; line-height: 1.05;
  letter-spacing: -0.02em; color: var(--text-1);
  margin-bottom: 0.45rem;
}
.page-hero__sub {
  font-size: 0.9rem; font-weight: 300;
  color: var(--text-2); margin-bottom: 1.25rem; max-width: 500px;
}
.page-hero__stats {
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
}
.stat-pill {
  display: inline-flex; align-items: center; gap: 0.45rem;
  font-size: 0.75rem; font-weight: 500;
  color: var(--disc-tema);
  padding: 0.25rem 0.75rem; border-radius: 99px;
  border: 1px solid rgba(var(--disc-tema-rgb), 0.3);
  background: rgba(var(--disc-tema-rgb), 0.08);
  transition: color 0.4s, border-color 0.4s, background 0.4s;
}
.stat-pill strong {
  font-weight: 700; color: var(--disc-tema);
  font-family: var(--font-display); font-size: 0.95rem;
}

/* ══════════════════════════════════════════
   MOBILE TOOLBAR (só botão de disciplina)
══════════════════════════════════════════ */
.mobile-toolbar {
  display: none;
  padding: 0.65rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: rgba(7,11,20,0.65);
  backdrop-filter: blur(14px);
}
.mobile-disc-btn {
  display: inline-flex;
  align-items: center; gap: 0.45rem;
  padding: 0.35rem 0.85rem;
  border-radius: 99px;
  border: 1px solid rgba(var(--disc-tema-rgb), 0.3);
  background: rgba(var(--disc-tema-rgb), 0.11);
  color: var(--disc-tema);
  font-family: var(--font-body); font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.05em; text-transform: uppercase; cursor: pointer;
  transition: border-color 0.2s, background 0.2s, color 0.4s;
  white-space: nowrap;
}
.mobile-disc-btn:hover {
  border-color: rgba(var(--disc-tema-rgb), 0.5);
  background: rgba(var(--disc-tema-rgb), 0.18);
}

/* ══════════════════════════════════════════
   MAIN / GRID
══════════════════════════════════════════ */
.main {
  padding: 1.75rem 2rem 4rem; flex: 1;
}

/* Estados */
.state-empty {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 0.6rem; padding: 5rem 2rem;
  text-align: center; color: var(--text-3); font-size: 0.88rem;
}
.state-empty__icon { font-size: 2.8rem; line-height: 1; }
.state-empty p  { color: var(--text-2); font-size: 0.9rem; }
.state-empty small { font-size: 0.76rem; opacity: 0.75; line-height: 1.6; }
.state-empty strong { font-size: 1.1rem; color: var(--text-1); font-family: var(--font-display); }

.coming-soon-pill {
  display: inline-flex; align-items: center; gap: 0.45rem;
  font-size: 0.68rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.3rem 0.85rem; border-radius: 99px;
  border: 1px solid rgba(245,158,11,0.3);
  color: var(--amber); background: var(--amber-dim);
  margin-top: 0.5rem;
}
.coming-soon-dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--amber); box-shadow: 0 0 6px var(--amber);
  animation: pulse-dot 2s ease-in-out infinite;
}

/* Spinner */
.spinner {
  width: 34px; height: 34px;
  border: 2px solid rgba(var(--disc-tema-rgb), 0.15);
  border-top-color: var(--disc-tema);
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
  transition: border-color 0.4s;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Grid */
.resumos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.1rem;
}

/* ══ CARD ══ */
.resumo-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.28s cubic-bezier(.25,.8,.25,1), box-shadow 0.28s, border-color 0.28s;
  animation: card-appear 0.35s ease both;
}
@keyframes card-appear {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* linha de topo */
.resumo-card::before {
  content: '';
  display: block;
  height: 2px;
  width: 100%;
  flex-shrink: 0;
  background: var(--disc-tema);
  opacity: 0.55;
  transition: opacity 0.3s, background 0.4s;
}
.resumo-card:hover::before { opacity: 1; }

.resumo-card:hover {
  transform: translateY(-5px);
  border-color: rgba(var(--disc-tema-rgb), 0.22);
  box-shadow: 0 16px 44px rgba(0,0,0,0.38), 0 0 0 1px rgba(var(--disc-tema-rgb), 0.07);
}

/* inner */
.card-inner {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 1.4rem 1.4rem 1.2rem;
}

/* número */
.card-num {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 0.65rem;
}

/* título principal */
.card-title {
  font-family: var(--font-bb);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text-1);
  margin-bottom: 0.8rem;
}

/* divisor animado */
.card-divider {
  width: 24px;
  height: 1.5px;
  background: rgba(var(--disc-tema-rgb), 0.4);
  border-radius: 99px;
  margin-bottom: 0.9rem;
  transition: width 0.3s ease, background 0.4s;
}
.resumo-card:hover .card-divider {
  width: 44px;
  background: rgba(var(--disc-tema-rgb), 0.7);
}

/* descrição */
.card-desc {
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--text-2);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 1.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-desc strong { color: var(--disc-tema); font-weight: 500; transition: color 0.4s; }

/* rodapé do card */
.card-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.card-progress__track {
  height: 1.5px;
  background: rgba(255,255,255,0.06);
  border-radius: 99px;
  overflow: hidden;
}

.card-progress__fill {
  height: 100%;
  width: 100%;
  background: var(--disc-tema);
  border-radius: 99px;
  opacity: 0.4;
  transition: background 0.4s;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-meta__count {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
}

.card-meta__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--disc-tema);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.22s, transform 0.22s, color 0.4s;
}
.resumo-card:hover .card-meta__cta {
  opacity: 1;
  transform: translateX(0);
}
.card-meta__cta svg { transition: transform 0.2s; }
.resumo-card:hover .card-meta__cta svg { transform: translateX(3px); }

.resumo-card--nota { --card-accent: var(--disc-tema); }

/* Temas fixos de card */
.card--explicativa { --card-accent: var(--teal); }
.card--revisao     { --card-accent: var(--gold); }
.card--pratica     { --card-accent: var(--rose); }
.card--conceito    { --card-accent: var(--blue); }
.card--default     { --card-accent: var(--violet); }

.badge--explicativa { color: var(--teal); }
.badge--revisao     { color: var(--gold); }
.badge--pratica     { color: var(--rose); }
.badge--conceito    { color: var(--blue); }
.badge--default     { color: var(--violet); }

/* ══════════════════════════════════════════
   READ MODAL — flutuante centralizado
══════════════════════════════════════════ */
.read-modal { position: fixed; inset: 0; z-index: 200; pointer-events: none; }
.read-modal--open { pointer-events: all; }

.read-modal__overlay {
  position: absolute; inset: 0;
  background: rgba(7,11,20,0.72);
  backdrop-filter: blur(10px);
  opacity: 0; transition: opacity 0.3s;
}
.read-modal--open .read-modal__overlay { opacity: 1; }

.read-modal__panel {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -44%) scale(0.96);
  width: min(700px, 92vw);
  max-height: 92vh;
  background: var(--surface-2);
  border: 1px solid var(--border-glow);
  border-radius: 20px;
  box-shadow:
    0 32px 80px rgba(0,0,0,0.55),
    0 0 0 1px rgba(255,255,255,0.04);
  display: flex;
  flex-direction: column;
  opacity: 0;
  transition: transform 0.35s cubic-bezier(.25,.8,.25,1), opacity 0.3s ease;
  overflow: hidden;
}
.read-modal--open .read-modal__panel {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
}
.read-modal__header {
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 1.6rem;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,0.2);
}
.read-modal__header-info { display: flex; align-items: center; gap: 0.7rem; flex-wrap: wrap; }
.read-modal__aula {
  font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-3);
}
.read-modal__badge {
  font-size: 0.6rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.2rem 0.55rem; border-radius: 99px;
  border: 1px solid currentColor; opacity: 0.85;
}
.read-modal__close {
  display: flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 10px;
  border: 1px solid var(--border-glow);
  background: rgba(255,255,255,0.05);
  color: var(--text-2); cursor: pointer;
  transition: color 0.2s, background 0.2s, border-color 0.2s, transform 0.15s;
  flex-shrink: 0;
}
.read-modal__close:hover {
  color: var(--text-1);
  background: rgba(232,122,154,0.12);
  border-color: rgba(232,122,154,0.35);
  transform: scale(1.08);
}
.read-modal__close:active { transform: scale(0.94); }

.read-modal__body {
  flex: 1; overflow-y: auto;
  padding: 1.75rem 1.6rem 2.5rem;
  overscroll-behavior: contain;
}

/* ══ TABS DE SEÇÃO (modal) ══ */
.rm-tabs {
  display: flex; flex-wrap: wrap; gap: 0.35rem;
  padding: 0 0 1.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.5rem;
}
.rm-tab {
  font-family: var(--font-body);
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 0.3rem 0.8rem; border-radius: 99px;
  border: 1px solid var(--border-glow);
  color: var(--text-3); background: transparent; cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.rm-tab:hover { color: var(--text-2); background: rgba(255,255,255,0.04); }
.rm-tab--active {
  color: var(--disc-tema);
  border-color: rgba(var(--disc-tema-rgb), 0.4);
  background: rgba(var(--disc-tema-rgb), 0.11);
}

.rm-secao { display: none; }
.rm-secao--active { display: block; animation: fade-up 0.25s ease both; }

.rm-secao-titulo {
  font-family: var(--font-display);
  font-size: 1.2rem; font-weight: 700;
  color: var(--text-1); margin-bottom: 1.1rem;
}

/* Ideia central */
.rm-ideia-central {
  display: flex; align-items: flex-start; gap: 0.6rem;
  padding: 0.85rem 1rem; border-radius: 12px;
  border: 1px solid rgba(var(--disc-tema-rgb), 0.2);
  background: rgba(var(--disc-tema-rgb), 0.05);
  font-size: 0.87rem; color: var(--text-2); line-height: 1.6;
  margin-bottom: 1.25rem;
  transition: border-color 0.4s, background 0.4s;
}
.rm-ideia-icon { font-size: 1rem; flex-shrink: 0; }
.rm-ideia-central strong { color: var(--disc-tema); transition: color 0.4s; }

/* Subtítulo */
.rm-subtitulo {
  font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-3); margin: 1.25rem 0 0.6rem;
  padding-bottom: 0.5rem; border-bottom: 1px solid var(--border);
}

/* Tópico */
.rm-topico { margin-bottom: 1.1rem; }
.rm-topico__titulo {
  font-size: 0.82rem; font-weight: 700;
  color: var(--text-1); margin-bottom: 0.45rem;
}
.rm-topico__titulo strong { color: var(--disc-tema); transition: color 0.4s; }
.rm-topico__texto {
  font-size: 0.875rem; color: var(--text-2); line-height: 1.7;
  margin-bottom: 0.5rem;
}
.rm-lista-titulo {
  font-size: 0.82rem; font-weight: 600; color: var(--text-2); margin-bottom: 0.4rem;
}

/* Lista */
.rm-lista {
  list-style: none; padding: 0;
  display: flex; flex-direction: column; gap: 0.35rem;
}
.rm-lista li {
  display: flex; align-items: flex-start; gap: 0.5rem;
  font-size: 0.86rem; color: var(--text-2); line-height: 1.6;
}
.rm-lista li::before {
  content: '·';
  color: var(--disc-tema);
  font-weight: 700; flex-shrink: 0; margin-top: 0.05em;
  transition: color 0.4s;
}
.rm-lista li strong { color: var(--text-1); }
.rm-lista li code {
  font-family: var(--font-mono); font-size: 0.82em;
  background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px; padding: 0.08em 0.38em; color: #c9d1d9;
}

/* Bloco de código */
.rm-codigo {
  font-family: var(--font-mono); font-size: 0.8rem;
  background: rgba(0,0,0,0.38); border: 1px solid rgba(255,255,255,0.07);
  border-radius: 10px; padding: 0.9rem 1.1rem; color: #c9d1d9;
  overflow-x: auto; line-height: 1.65; margin: 0.55rem 0 0.85rem;
  white-space: pre;
}
.rm-codigo code { background: none; border: none; padding: 0; font-size: inherit; }

/* Tabela */
.rm-tabela-wrap {
  overflow-x: auto; margin: 0.55rem 0 0.9rem; border-radius: 10px;
  border: 1px solid var(--border);
}
.rm-tabela {
  width: 100%; border-collapse: collapse;
  font-size: 0.82rem;
}
.rm-tabela th {
  background: rgba(var(--disc-tema-rgb), 0.08);
  color: var(--disc-tema);
  font-size: 0.65rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.55rem 1rem; text-align: left; border-bottom: 1px solid var(--border);
  transition: background 0.4s, color 0.4s;
}
.rm-tabela td {
  padding: 0.5rem 1rem; color: var(--text-2); border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.rm-tabela tr:last-child td { border-bottom: none; }
.rm-tabela tr:hover td { background: rgba(255,255,255,0.025); }
.rm-tabela td code { color: var(--blue); background: rgba(122,168,232,0.1); border-color: rgba(122,168,232,0.2); }

/* Exemplo */
.rm-exemplo {
  padding: 0.9rem 1rem; border-radius: 11px;
  border: 1px solid var(--border); background: rgba(255,255,255,0.02);
  margin-bottom: 0.65rem;
}
.rm-exemplo__titulo {
  font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 0.35rem;
}
.rm-exemplo__texto {
  font-size: 0.86rem; color: var(--text-2); line-height: 1.6; margin-bottom: 0.25rem;
}
.rm-exemplo__detalhe {
  font-size: 0.8rem; color: var(--disc-tema); font-style: italic; transition: color 0.4s;
}

/* Destaque */
.rm-destaque {
  margin-top: 1.1rem; padding: 1rem 1.15rem;
  border-radius: 12px; border: 1px solid rgba(232,201,122,0.25);
  background: rgba(232,201,122,0.06);
  font-size: 0.875rem; font-weight: 500; color: var(--gold); line-height: 1.65;
}
.rm-destaque strong { color: var(--gold); }

/* ══════════════════════════════════════════
   HIGHLIGHTS
══════════════════════════════════════════ */
.hl {
  display: inline; padding: 0.08em 0.32em;
  border-radius: 4px; font-weight: 500;
}
.hl--default { background: rgba(var(--disc-tema-rgb), 0.14); color: var(--disc-tema); border: 1px solid rgba(var(--disc-tema-rgb), 0.22); }
.hl--ddl     { background: rgba(122,168,232,0.13); color: var(--blue); border: 1px solid rgba(122,168,232,0.25); font-family: var(--font-mono); font-size: 0.87em; }
.hl--danger  { background: rgba(232,122,154,0.12); color: var(--rose); border: 1px solid rgba(232,122,154,0.25); font-weight: 600; }
.hl--warn    { background: rgba(245,158,11,0.12); color: var(--amber); border: 1px solid rgba(245,158,11,0.25); }

/* Código global */
code {
  font-family: var(--font-mono); font-size: 0.82em;
  background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 5px; padding: 0.1em 0.42em; color: #c9d1d9; white-space: nowrap;
}
pre {
  font-family: var(--font-mono); font-size: 0.8rem;
  background: rgba(0,0,0,0.35); border: 1px solid rgba(255,255,255,0.07);
  border-radius: 10px; padding: 1rem 1.15rem; color: #c9d1d9;
  overflow-x: auto; line-height: 1.65; margin: 0.65rem 0;
}

/* ══════════════════════════════════════════
   MOBILE DROPDOWN
══════════════════════════════════════════ */
.mobile-dropdown {
  position: fixed; inset: 0; z-index: 300; pointer-events: none;
}
.mobile-dropdown--open { pointer-events: all; }

.mobile-dropdown__backdrop {
  position: absolute; inset: 0;
  background: rgba(7,11,20,0.75); backdrop-filter: blur(6px);
  opacity: 0; transition: opacity 0.25s;
}
.mobile-dropdown--open .mobile-dropdown__backdrop { opacity: 1; }

.mobile-dropdown__sheet {
  position: absolute; left: 0; right: 0; bottom: 0;
  background: var(--surface-2); border-top: 1px solid var(--border-glow);
  border-radius: 20px 20px 0 0;
  padding: 0 0 2rem;
  transform: translateY(100%);
  transition: transform 0.32s cubic-bezier(.25,.8,.25,1);
  max-height: 70vh; overflow-y: auto;
}
.mobile-dropdown--open .mobile-dropdown__sheet { transform: translateY(0); }

.mobile-dropdown__handle {
  width: 36px; height: 4px; border-radius: 2px;
  background: var(--border-glow); margin: 0.85rem auto 0;
}
.mobile-dropdown__title {
  font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-3); padding: 1rem 1.25rem 0.65rem;
  border-bottom: 1px solid var(--border);
}
.mobile-dropdown__list {
  padding: 0.6rem 0.75rem;
  display: flex; flex-direction: column; gap: 0.25rem;
}

/* ══════════════════════════════════════════
   FOOTER
══════════════════════════════════════════ */
.footer {
  position: relative; z-index: 2;
  text-align: center; padding: 1.5rem 2rem;
  font-size: 0.73rem; color: var(--text-3);
  letter-spacing: 0.04em; border-top: 1px solid var(--border);
}

/* ══════════════════════════════════════════
   ANIMAÇÕES
══════════════════════════════════════════ */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ══════════════════════════════════════════
   RESPONSIVIDADE
══════════════════════════════════════════ */
@media (max-width: 860px) {
  :root { --sidebar-w: 200px; }
}

@media (max-width: 680px) {
  .sidebar { display: none; }
  .mobile-toolbar { display: flex; }
  .header__center { display: none; }

  .page-hero { padding: 1.75rem 1.25rem 1.4rem; }
  .main { padding: 1.4rem 1.25rem 3rem; }

  .resumos-grid { grid-template-columns: 1fr; }
  .read-modal__panel { width: 94vw; max-height: 92vh; border-radius: 16px; }
  .read-modal__body { padding: 1.35rem 1.15rem 2.5rem; }

  .disc-badge { display: none; }
}

@media (max-width: 440px) {
  .page-hero__title { font-size: 1.85rem; }
  .btn-back__label { display: none; }
}

/* ══════════════════════════════════════════
   SEMESTRE SELECT
══════════════════════════════════════════ */
.semestre-select {
  appearance: none;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-glow);
  border-radius: 8px;
  color: var(--text-2);
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  padding: 0.55rem 2rem 0.55rem 0.85rem;
  cursor: pointer;
  outline: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23a8a49c' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.6rem center;
  transition: border-color 0.2s, color 0.2s;
}
.semestre-select:hover,
.semestre-select:focus {
  border-color: rgba(var(--disc-tema-rgb), 0.35);
  color: var(--text-1);
}
.semestre-select option {
  background: #0e1420;
  color: var(--text-1);
}

/* =============================================
   NEXUS STUDY — resumo_adicoes.css
   Adicionar ao FINAL de resumo.css
   Implementa o Toggle de Modo (Completo × Síntese)
   ============================================= */

/* ══════════════════════════════════════════
   TOGGLE DE MODO
   Aparece na área .page-hero__stats
══════════════════════════════════════════ */
.mode-toggle {
  display: inline-flex;
  background: var(--surface);
  border: 1px solid var(--border-glow);
  border-radius: 99px;
  padding: 3px;
  gap: 0;
}

.mode-btn {
  padding: 0.28rem 0.95rem;
  border-radius: 99px;
  border: none;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-3);
  background: transparent;
  cursor: pointer;
  transition: color 0.2s, background 0.2s, box-shadow 0.2s;
  white-space: nowrap;
  line-height: 1.4;
}

.mode-btn:hover {
  color: var(--text-2);
}

.mode-btn--active {
  background: rgba(var(--disc-tema-rgb), 0.15);
  color: var(--disc-tema);
  box-shadow: 0 0 0 1px rgba(var(--disc-tema-rgb), 0.3);
  transition: color 0.4s, background 0.4s, box-shadow 0.4s;
}

/* ══════════════════════════════════════════
   CARD NO MODO SÍNTESE
   Mesma base do .resumo-card normal,
   só troca o conteúdo interno
══════════════════════════════════════════ */

/* Row que junta o número da aula e o badge "Síntese" */
.card-num-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.65rem;
}

/* Quando está dentro do row o card-num não precisa de margin-bottom própria */
.card-num-row .card-num {
  margin-bottom: 0;
}

/* Badge dourado no canto superior direito do card */
.sint-badge {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.18rem 0.6rem;
  border-radius: 99px;
  border: 1px solid rgba(232, 201, 122, 0.35);
  color: var(--gold);
  background: rgba(232, 201, 122, 0.09);
  flex-shrink: 0;
}

/* Lista de bullet points da síntese */
.sint-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.32rem;
  flex: 1;
  margin-bottom: 1.2rem;
}

.sint-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-2);
  line-height: 1.58;
}

.sint-list li::before {
  content: '·';
  color: var(--disc-tema);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.05em;
  transition: color 0.4s;
}

.sint-list li strong {
  color: var(--text-1);
}

.sint-list li code {
  font-family: var(--font-mono);
  font-size: 0.82em;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  padding: 0.08em 0.38em;
  color: #c9d1d9;
}

/* Estado quando a aula não tem sintese escrita ainda */
.sint-empty {
  font-size: 0.78rem;
  color: var(--text-3);
  font-style: italic;
  flex: 1;
  margin-bottom: 1.2rem;
  line-height: 1.6;
}

/* ══════════════════════════════════════════
   RESPONSIVIDADE DO TOGGLE
══════════════════════════════════════════ */
@media (max-width: 440px) {
  .mode-btn {
    font-size: 0.63rem;
    padding: 0.25rem 0.7rem;
  }
}

.rm-topico__img {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  margin: 0.6rem 0 0.75rem;
  display: block;
  object-fit: contain;
}

.rm-topico__fig {
  margin: 0.6rem 0 0.75rem;
}

.rm-topico__fig-caption {
  font-size: 0.71rem;
  color: var(--text-3);
  text-align: center;
  margin-top: 0.4rem;
  font-style: italic;
  letter-spacing: 0.03em;
  line-height: 1.5;
}

/* ═══════════════════════════════════════════════════════════════════
   NEXUS STUDY — videos_strip.css  (v3 — card redesign)
   Substitui todo o bloco de vídeos no final de resumo.css
════════════════════════════════════════════════════════════════════ */

#videos-section {
  border-bottom: 1px solid var(--border);
}

.videos-strip {
  padding: 0 2rem;
}

/* ── Header / Toggle ── */
.videos-strip__head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 0;
  cursor: pointer;
  user-select: none;
  border-radius: 10px;
  transition: opacity 0.2s;
}
.videos-strip__head:hover { opacity: 0.8; }

.videos-strip__head-icon {
  width: 24px; height: 24px;
  border-radius: 6px;
  background: rgba(var(--disc-tema-rgb), 0.12);
  border: 1px solid rgba(var(--disc-tema-rgb), 0.22);
  display: flex; align-items: center; justify-content: center;
  color: var(--disc-tema);
  flex-shrink: 0;
  transition: background 0.4s, border-color 0.4s;
}

.videos-strip__head-label {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
}

.videos-strip__head-count {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 0.2rem 0.65rem;
  border-radius: 99px;
  background: rgba(var(--disc-tema-rgb), 0.15);
  border: 1px solid rgba(var(--disc-tema-rgb), 0.35);
  color: var(--disc-tema);   /* ← cor cheia, sem opacity */
}

/* Botão de toggle no canto direito */
.videos-strip__toggle-btn {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.7rem 0.25rem 0.55rem;
  border-radius: 99px;
  border: 1px solid var(--border-glow);
  background: rgba(255,255,255,0.04);
  color: var(--text-3);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  flex-shrink: 0;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}
.videos-strip__head:hover .videos-strip__toggle-btn {
  border-color: rgba(var(--disc-tema-rgb), 0.3);
  background: rgba(var(--disc-tema-rgb), 0.07);
  color: var(--disc-tema);
}

.videos-strip__chevron {
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.videos-strip--open .videos-strip__chevron {
  transform: rotate(180deg);
}

/* Label do botão: "Ver" quando fechado, "Ocultar" quando aberto */
.videos-strip__toggle-label::after { content: 'Ver'; }
.videos-strip--open .videos-strip__toggle-label::after { content: 'Ocultar'; }

/* ── Corpo colapsável ── */
.videos-strip__body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.38s cubic-bezier(.25,.8,.25,1);
}
.videos-strip--open .videos-strip__body {
  grid-template-rows: 1fr;
}
.videos-strip__body-inner {
  overflow: hidden;
  transition: padding-bottom 0.38s ease;
  padding-bottom: 0;
}
.videos-strip--open .videos-strip__body-inner {
  padding-bottom: 1.1rem;
}

/* ── Grid de cards ── */
.videos-strip__row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.5rem;
}

.videos-strip__yt-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.56rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 80, 80, 0.55);
  margin: 0.75rem 0 0.5rem;
}

/* ═══════════════════════════
   VCARD — card de vídeo
═══════════════════════════ */
.vchip {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0.42rem;
  padding: 0.65rem 0.85rem 0.6rem;
  border-radius: 11px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  text-decoration: none;
  cursor: pointer;
  min-width: 126px;
  max-width: 148px;
  position: relative;
  overflow: hidden;
  transition:
    transform     0.2s cubic-bezier(.25,.8,.25,1),
    border-color  0.2s,
    background    0.2s;
}

/* Barra de cor no topo */
.vchip::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--disc-tema);
  opacity: 0.35;
  transition: opacity 0.2s, background 0.4s;
}

.vchip:hover {
  transform: translateY(-3px);
  border-color: rgba(var(--disc-tema-rgb), 0.3);
  background: rgba(var(--disc-tema-rgb), 0.06);
}
.vchip:hover::before { opacity: 1; }
.vchip:active { transform: translateY(0); }

/* ── Linha superior: play + badge ── */
.vchip__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
}

/* Ícone play */
.vchip__play {
  width: 26px; height: 26px;
  border-radius: 7px;
  background: rgba(var(--disc-tema-rgb), 0.12);
  border: 1px solid rgba(var(--disc-tema-rgb), 0.2);
  display: flex; align-items: center; justify-content: center;
  color: var(--disc-tema);
  flex-shrink: 0;
  transition: background 0.2s, color 0.4s, border-color 0.4s;
}
.vchip:hover .vchip__play {
  background: rgba(var(--disc-tema-rgb), 0.22);
}

/* Badge tipo (Drive / YouTube / Playlist) */
.vchip__badge {
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 0.15rem 0.42rem;
  border-radius: 99px;
  white-space: nowrap;
  flex-shrink: 0;
}
.vchip__badge--drive {
  color: rgba(var(--disc-tema-rgb), 0.85);
  background: rgba(var(--disc-tema-rgb), 0.1);
  border: 1px solid rgba(var(--disc-tema-rgb), 0.2);
  transition: color 0.4s, background 0.4s, border-color 0.4s;
}
.vchip__badge--yt {
  color: rgba(255, 100, 100, 0.9);
  background: rgba(255, 60, 60, 0.1);
  border: 1px solid rgba(255, 60, 60, 0.2);
}

/* Label do vídeo */
.vchip__label {
  font-size: 0.73rem;
  font-weight: 600;
  line-height: 1.25;
  color: rgba(240, 237, 230, 0.8);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.2s;
}
.vchip:hover .vchip__label { color: var(--text-1); }

/* ── Variante: Vídeo Geral (destaque) ── */
.vchip--geral {
  border-color: rgba(var(--disc-tema-rgb), 0.22);
  background: rgba(var(--disc-tema-rgb), 0.05);
}
.vchip--geral::before { opacity: 0.75; }
.vchip--geral .vchip__label {
  color: var(--disc-tema);
  font-weight: 700;
}
.vchip--geral:hover {
  background: rgba(var(--disc-tema-rgb), 0.12);
  border-color: rgba(var(--disc-tema-rgb), 0.38);
}

/* ── Variante: YouTube ── */
.vchip--yt::before { background: #ff4545; opacity: 0.6; }
.vchip--yt .vchip__play {
  background: rgba(255, 60, 60, 0.12);
  border-color: rgba(255, 60, 60, 0.2);
  color: rgba(255, 80, 80, 0.8);
}
.vchip--yt:hover {
  border-color: rgba(255, 69, 69, 0.35);
  background: rgba(255, 60, 60, 0.05);
}
.vchip--yt:hover::before { opacity: 1; }
.vchip--yt:hover .vchip__play {
  background: rgba(255, 60, 60, 0.22);
}

/* ── Separador YouTube ── */
.vstrip-yt-sep {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  gap: 3px;
  padding: 0 0.2rem;
  align-self: stretch;
}
.vstrip-yt-sep__line {
  flex: 1;
  width: 1px;
  background: rgba(255, 60, 60, 0.2);
  border-radius: 99px;
  min-height: 12px;
}
.vstrip-yt-sep__text {
  font-size: 0.44rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 60, 60, 0.45);
  writing-mode: vertical-rl;
  white-space: nowrap;
}

/* ── Responsividade ── */
@media (max-width: 680px) {
  .videos-strip { padding: 0.85rem 1.25rem 1rem; }
}