/* =============================================
   NEXUS STUDY — quiz/quiz.css
   Tela: Seleção de Disciplinas
   Estilo: Dark Tech Academy (grid 2x2)
    fundo no shared/css (caminho irei fazer)
   ============================================= */

/* ── RESET & BASE ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

  --gold:        #e8c97a;
  --gold-dim:    rgba(232, 201, 122, 0.15);
  --teal:        #4dd9b4;
  --teal-dim:    rgba(77, 217, 180, 0.12);
  --rose:        #e87a9a;
  --rose-dim:    rgba(232, 122, 154, 0.12);
  --blue:        #7aa8e8;
  --blue-dim:    rgba(122, 168, 232, 0.12);

  --text-1:  #f0ede6;
  --text-2:  #a8a49c;
  --text-3:  #a09a8e;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;

  --max-w: 860px;
}

html { scroll-behavior: smooth; }

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

/* ── HEADER ── */
.header {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 1.1rem 2rem;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px);
  background: rgba(7, 11, 20, 0.65);
}

.header__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* Back button */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-2);
  padding: 0.35rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border-glow);
  background: rgba(255,255,255,0.03);
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}

.back-btn:hover {
  color: var(--text-1);
  background: rgba(77,217,180,0.07);
  border-color: rgba(77,217,180,0.3);
}

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.logo-mark {
  width: 34px;
  height: 34px;
  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: 1.2rem;
  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: 1.1rem;
  font-weight: 600;
  color: var(--text-1);
}

.logo-sub {
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal);
}

/* ── LADO DIREITO DO HEADER: select + breadcrumb ── */
/*
  Agrupa o seletor de semestre e o breadcrumb lado a lado.
  Fica no lugar do breadcrumb anterior, à direita do logo.
*/
.header__right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ── SELETOR DE SEMESTRE ── */
/*
  Estilos espelhados do style.css para manter consistência visual
  com o seletor da home page.
*/
.semestre-select {
  appearance: none;
  -webkit-appearance: none;
  background-color: rgba(255,255,255,0.04);
  border: 1px solid var(--border-glow);
  border-radius: 8px;
  color: var(--text-2);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  padding: 0.4rem 2rem 0.4rem 0.75rem;
  outline: none;

  /* Seta customizada */
  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, background-color 0.2s;
}

.semestre-select:hover,
.semestre-select:focus {
  border-color: rgba(77,217,180,0.35);
  color: var(--text-1);
  background-color: rgba(255,255,255,0.07);
}

.semestre-select option {
  background: #0e1420;
  color: var(--text-1);
}

/* ── BREADCRUMB ── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-3);
}

.breadcrumb svg { opacity: 0.4; }

.breadcrumb__item--active {
  color: var(--rose);
  font-weight: 500;
}

/* ── MAIN ── */
.main {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3.5rem 2rem 3rem;
}

/* ── PAGE HEADER ── */
.page-header {
  margin-bottom: 2.5rem;
  animation: fade-up 0.55s ease both;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.page-header__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rose);
  background: rgba(232,122,154,0.08);
  border: 1px solid rgba(232,122,154,0.2);
  padding: 0.35rem 0.9rem;
  border-radius: 99px;
  margin-bottom: 1.25rem;
}

.page-header__title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--text-1);
  margin-bottom: 0.6rem;
  animation: fade-up 0.6s 0.1s ease both;
}

.page-header__title em {
  font-style: italic;
  color: var(--text-1);
}

.page-header__desc {
  font-size: 0.9rem;
  color: var(--text-2);
  font-weight: 300;
  max-width: 440px;
  margin: 0 auto;
  line-height: 1.65;
}

/* ── DISCIPLINES GRID 2x2 ── */
.disciplines {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  animation: fade-up 0.6s 0.2s ease both;
}

/* ── MENSAGEM DE SEMESTRE VAZIO ── */
.disciplines-empty {
  display: none;
  grid-column: 1 / -1;
  color: var(--text-3);
  text-align: center;
  padding: 3rem 1rem;
  font-size: 0.95rem;
}

/* ── DISCIPLINE CARD ── */
.disc-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.75rem;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--surface);
  overflow: hidden;
  cursor: pointer;
  transition:
    transform 0.3s cubic-bezier(.25,.8,.25,1),
    box-shadow 0.3s ease,
    border-color 0.3s ease;
  text-decoration: none;
  min-height: 200px;
}

.disc-card:hover {
  transform: translateY(-6px) scale(1.01);
}

.disc-card__stripe { display: none; }
.disc-card__glow   { display: none; }

/* Icon */
.disc-card__icon-col { padding: 0; }

.disc-card__icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.disc-card:hover .disc-card__icon-wrap {
  transform: scale(1.1) rotate(-4deg);
}

/* Body */
.disc-card__body {
  flex: 1;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.disc-card__title {
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-bottom: 0.35rem;
}

.disc-card__desc {
  font-size: 0.84rem;
  font-weight: 300;
  color: var(--text-2);
  line-height: 1.6;
}

/* CTA */
.disc-card__cta {
  position: absolute;
  bottom: 1.2rem;
  right: 1.2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.disc-card__arrow {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-3);
  transition:
    transform 0.3s ease,
    border-color 0.3s ease,
    color 0.3s ease,
    background 0.3s ease,
    box-shadow 0.3s ease;
}

.disc-card:hover .disc-card__arrow { transform: translateY(-3px); }

.disc-card__cta-label {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.25s ease, transform 0.25s ease, color 0.25s ease;
}

.disc-card:hover .disc-card__cta-label { opacity: 1; transform: translateY(0); }

/* ── CARD THEMES ── */

/* Blue — POO */
.disc-card--blue { background: linear-gradient(145deg, #0e1420, #0d1422); }
.disc-card--blue:hover { border-color: rgba(122,168,232,0.3); box-shadow: 0 12px 40px rgba(122,168,232,0.1); }
.disc-card--blue .disc-card__icon-wrap { background: var(--blue-dim); }
.disc-card--blue .disc-card__title { color: var(--blue); }
.disc-card--blue:hover .disc-card__arrow { border-color: var(--blue); color: var(--blue); background: rgba(122,168,232,0.1); box-shadow: 0 0 14px rgba(122,168,232,0.2); }
.disc-card--blue:hover .disc-card__cta-label { color: var(--blue); }

/* Teal — Redes */
.disc-card--teal { background: linear-gradient(145deg, #0e1420, #0d1c20); }
.disc-card--teal:hover { border-color: rgba(77,217,180,0.3); box-shadow: 0 12px 40px rgba(77,217,180,0.1); }
.disc-card--teal .disc-card__icon-wrap { background: var(--teal-dim); }
.disc-card--teal .disc-card__title { color: var(--teal); }
.disc-card--teal:hover .disc-card__arrow { border-color: var(--teal); color: var(--teal); background: rgba(77,217,180,0.1); box-shadow: 0 0 14px rgba(77,217,180,0.2); }
.disc-card--teal:hover .disc-card__cta-label { color: var(--teal); }

/* Gold — Design */
.disc-card--gold { background: linear-gradient(145deg, #0e1420, #12172a); }
.disc-card--gold:hover { border-color: rgba(232,201,122,0.3); box-shadow: 0 12px 40px rgba(232,201,122,0.1); }
.disc-card--gold .disc-card__icon-wrap { background: var(--gold-dim); }
.disc-card--gold .disc-card__title { color: var(--gold); }
.disc-card--gold:hover .disc-card__arrow { border-color: var(--gold); color: var(--gold); background: rgba(232,201,122,0.1); box-shadow: 0 0 14px rgba(232,201,122,0.2); }
.disc-card--gold:hover .disc-card__cta-label { color: var(--gold); }

/* Rose — Banco de Dados */
.disc-card--rose { background: linear-gradient(145deg, #0e1420, #1c0d16); }
.disc-card--rose:hover { border-color: rgba(232,122,154,0.3); box-shadow: 0 12px 40px rgba(232,122,154,0.1); }
.disc-card--rose .disc-card__icon-wrap { background: var(--rose-dim); }
.disc-card--rose .disc-card__title { color: var(--rose); }
.disc-card--rose:hover .disc-card__arrow { border-color: var(--rose); color: var(--rose); background: rgba(232,122,154,0.1); box-shadow: 0 0 14px rgba(232,122,154,0.2); }
.disc-card--rose:hover .disc-card__cta-label { color: var(--rose); }

/* ── FOOTER ── */
.footer {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 1.75rem 2rem;
  font-size: 0.76rem;
  color: var(--text-3);
  letter-spacing: 0.04em;
  border-top: 1px solid var(--border);
  margin-top: 2rem;
}

/* ── ANIMATION ── */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

.disciplines .disc-card:nth-child(1) { animation: fade-up 0.5s 0.25s ease both; }
.disciplines .disc-card:nth-child(2) { animation: fade-up 0.5s 0.33s ease both; }
.disciplines .disc-card:nth-child(3) { animation: fade-up 0.5s 0.41s ease both; }
.disciplines .disc-card:nth-child(4) { animation: fade-up 0.5s 0.49s ease both; }

/* ── RESPONSIVIDADE ── */
@media (max-width: 680px) {
  .header { padding: 0.9rem 1.25rem; }

  /* No mobile, oculta o breadcrumb e mantém só o select */
  .breadcrumb { display: none; }

  .main { padding: 2rem 1.25rem 2rem; }
  .page-header__title { font-size: 2rem; }
  .disciplines { grid-template-columns: 1fr; gap: 1rem; }
  .disc-card { padding: 1.4rem; }
  .disc-card__title { font-size: 1.3rem; }
  .disc-card__desc { display: none; }
  .disc-card__cta-label { display: none; }
}

@media (max-width: 380px) {
  .page-header__title { font-size: 1.75rem; }
  .logo-title { font-size: 1rem; }
  .semestre-select { font-size: 0.72rem; padding: 0.35rem 1.8rem 0.35rem 0.6rem; }
}