/* ══════════════════════════════════════════════════════════════════════
   PAGE: /materias (selector de materias/áreas)
   Prefijos: .materias-*, .materia-card-*

   Lista de materias con cards en gradient + icon ring + progress bar.
   Footer con quick-link a learn.

   Usado por:
   - views/materias.html
   - js/controllers/materias.js (renderiza .materia-card por área)

   Extraído de responsive.css en Round 6.1.

   NOTA: La página existía pero su CSS estaba en responsive.css (no en un
   archivo dedicado). Esta es la PRIMERA vez que /materias tiene su
   propio archivo. La página ya funcionaba antes via responsive.css.
   ══════════════════════════════════════════════════════════════════════ */

/* ─── 1. Desktop / Base styles (from responsive.css 30-194) ────────── */
/* ─── Materias View — Base Styles (all viewports) ───────────────────── */
.materias-container {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.materias-header {
  margin-bottom: 8px;
}

.materias-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 4px;
}

.materias-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin: 0;
}

.materias-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.materia-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: #FFF;
  border: 1px solid #EDF0F5;
  border-radius: 20px;
  padding: 0;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.materia-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.materia-card-gradient {
  width: 88px;
  min-width: 88px;
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.materia-card-icon-ring {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.materia-card-icon-ring .material-symbols-outlined {
  font-size: 26px;
  color: #FFF;
  font-variation-settings: 'wght' 500, 'FILL' 1;
}

.materia-card-bg-emoji {
  position: absolute;
  right: -8px;
  bottom: -8px;
  font-size: 42px;
  opacity: 0.12;
  pointer-events: none;
  z-index: 0;
}

.materia-card-body {
  flex: 1;
  min-width: 0;
  padding: 16px 0;
}

.materia-card-name {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.materia-card-meta {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.materia-card-dot {
  opacity: 0.4;
}

.materia-card-progress-bg {
  height: 6px;
  background: #EDF0F5;
  border-radius: 3px;
  overflow: hidden;
  width: 92%;
}

.materia-card-progress-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.materia-card-arrow {
  color: var(--text-secondary);
  font-size: 22px;
  opacity: 0.4;
  padding-right: 16px;
  flex-shrink: 0;
}

.materias-footer {
  margin-top: 8px;
}

.materias-quick-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--violet-light, rgba(108, 43, 255, 0.06));
  border: 1px solid rgba(108, 43, 255, 0.1);
  border-radius: 16px;
  text-decoration: none;
  color: var(--violet);
  font-size: 0.92rem;
  font-weight: 600;
  transition: background 0.2s ease;
}

.materias-quick-link:hover {
  background: rgba(108, 43, 255, 0.1);
}

.materias-quick-link .material-symbols-outlined:first-child {
  font-size: 22px;
}


/* ─── 2. Mobile @media (max-width: 768px) (from responsive.css 317-481) ─ */
@media (max-width: 768px) {
  .materias-container {
    display: flex;
    flex-direction: column;
    gap: var(--m-gap-xl);
  }

  .materias-header {
    text-align: center;
    padding-top: 8px;
  }

  .materias-title {
    font-size: 1.5rem !important;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 4px;
  }

  .materias-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
  }

  .materias-grid {
    display: flex;
    flex-direction: column;
    gap: var(--m-gap-md);
  }

  /* ── Subject Card ── */
  .materia-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background: #FFF;
    border: 1px solid #EDF0F5;
    border-radius: 18px;
    padding: 0;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    -webkit-tap-highlight-color: transparent;
  }

  .materia-card:active {
    transform: scale(0.98);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
  }

  /* Gradient left strip */
  .materia-card-gradient {
    width: 72px;
    min-width: 72px;
    min-height: 88px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
  }

  .materia-card-icon-ring {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
  }

  .materia-card-icon-ring .material-symbols-outlined {
    font-size: 22px;
    color: #FFF;
    font-variation-settings: 'wght' 500, 'FILL' 1;
  }

  .materia-card-bg-emoji {
    display: none !important;
  }

  /* Card body */
  .materia-card-body {
    flex: 1;
    min-width: 0;
    padding: 14px 0;
  }

  .materia-card-name {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 3px;
    color: var(--text-primary);
  }

  .materia-card-meta {
    font-size: 0.72rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
  }

  .materia-card-dot {
    opacity: 0.4;
  }

  .materia-card-progress-bg {
    height: 5px;
    background: #EDF0F5;
    border-radius: 3px;
    overflow: hidden;
    width: 90%;
  }

  .materia-card-progress-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  }

  /* Arrow */
  .materia-card-arrow {
    color: var(--text-secondary);
    font-size: 20px;
    opacity: 0.4;
    padding-right: 14px;
    flex-shrink: 0;
  }

  /* ── Quick Access Footer ── */
  .materias-footer {
    margin-top: 4px;
  }

  .materias-quick-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    background: var(--violet-light, rgba(108, 43, 255, 0.06));
    border: 1px solid rgba(108, 43, 255, 0.1);
    border-radius: 14px;
    text-decoration: none;
    color: var(--violet);
    font-size: 0.88rem;
    font-weight: 600;
    transition: background 0.2s ease;
    -webkit-tap-highlight-color: transparent;
  }

  .materias-quick-link:active {
    background: rgba(108, 43, 255, 0.12);
  }

  .materias-quick-link .material-symbols-outlined:first-child {
    font-size: 20px;
  }
}