/* ==========================================================================
   materia.css — Inside TuP
   Styles for individual subject pages (materias/*.html).
   Imports shared styles from global.css (fonts, variables, reset, header/nav, footer).
   ========================================================================== */

@import url("./global.css");

/* ==========================================================================
   1. HEADER & NAV styles are in global.css
   ========================================================================== */

/* ==========================================================================
   2. PAGE LAYOUT
   ========================================================================== */

.section.materia {
  padding-block: var(--space-12);
}

.section.materia > div {
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}

/* ==========================================================================
   3. BACK LINK
   ========================================================================== */

.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  transition: color var(--t-fast);
}

.back-link:hover {
  color: var(--color-text-primary);
}

/* ==========================================================================
   4. MATERIA INTRO — cuatri label + h1
   ========================================================================== */

.materia-intro {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.materia-intro > p {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.materia-intro h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

.materia-intro h1 strong {
  font-weight: 500;
}

/* ==========================================================================
   5. MATERIA TOP — card + metadata side by side
   ========================================================================== */

.materia-top {
  display: flex;
  gap: var(--space-8);
  align-items: flex-start;
}

@media (width < 414px) {
  .materia-top {
    flex-wrap: wrap;
  }
}

/* Card — same visual as materias.html */
.materia-card {
  flex-shrink: 0;
  width: 160px;
  aspect-ratio: 3 / 4;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  border: 0.5px solid var(--color-border);
  background-color: #16201a;
}

.card-top {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.card-logo {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

.card-name {
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.3;
  color: var(--color-text-primary);
}

.card-icon {
  font-size: 2rem;
  color: var(--color-accent);
  font-variation-settings:
    "FILL" 0,
    "wght" 300,
    "GRAD" 0,
    "opsz" 32;
}

.card-footer {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.5;
  color: var(--color-text-muted);
}

/* Metadata column */
.materia-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  justify-content: center;
  padding-top: var(--space-2);
}

.meta-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.meta-item dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.meta-item dd {
  font-size: 0.9375rem;
  color: var(--color-text-primary);
}

/* Estado badge */
.meta-estado {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 500;
}

.meta-estado.cursando {
  color: var(--color-accent);
}

.meta-estado.aprobada {
  color: rgba(125, 211, 176, 0.5);
}

.meta-estado.regular {
  color: var(--color-text-muted);
}

/* Ghost button — calendar download */
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8125rem;
  font-weight: 500;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-md);
  border: 0.5px solid var(--color-border);
  color: var(--color-text-secondary);
  transition:
    border-color var(--t-fast),
    color var(--t-fast);
}

.btn-ghost:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text-primary);
}

@media (width < 415px) {
  .btn-ghost {
    gap: var(--space-5);
  }
}

.btn-icon {
  font-size: 1.125rem;
  font-variation-settings:
    "FILL" 0,
    "wght" 300,
    "GRAD" 0,
    "opsz" 20;
}

/* ==========================================================================
   6. DIVIDER — only between top block and clases section
   ========================================================================== */

.divider {
  border: none;
  border-top: 0.5px solid var(--color-border);
}

/* ==========================================================================
   7. CLASES SECTION
   ========================================================================== */

.clases {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  border-top: 0.5px solid var(--color-border);
  padding-top: var(--space-8);
}

.clases h2 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 300;
  letter-spacing: -0.01em;
  color: var(--color-text-primary);
}

/* Individual class block — border-top separates each one */
.clase-block {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  border-top: 0.5px solid var(--color-border);
  padding-top: var(--space-8);
}

/* First block has no top border — the h2 already separates it */
.clase-block:first-of-type {
  border-top: none;
  padding-top: 0;
}

.clase-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.clase-num {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.clase-fecha {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.clase-tema {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-primary);
  line-height: 1.4;
}

.clase-desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
  max-width: 60ch;
}

/* Actions row: collapsible trigger + download all */
.clase-actions {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  flex-wrap: wrap;
}

@media (width <= 480px) {
  .clase-actions {
    flex-direction: column;
  }
}

/* Collapsible files wrapper */
.clase-archivos {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
  min-width: 0;
}

.clase-archivos-trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8125rem;
  font-weight: 500;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-md);
  border: 0.5px solid var(--color-border);
  color: var(--color-text-secondary);
  transition:
    border-color var(--t-fast),
    color var(--t-fast);
  align-self: flex-start;
}

.clase-archivos-trigger:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text-primary);
}

.trigger-icon {
  font-size: 1rem;
  font-variation-settings:
    "FILL" 0,
    "wght" 300,
    "GRAD" 0,
    "opsz" 20;
  transition: transform var(--t-base);
}

.clase-archivos-trigger[aria-expanded="true"] .trigger-icon {
  transform: rotate(180deg);
}

/* Collapsible body — same max-height pattern as FAQ */
.clase-archivos-body {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.35s ease;
}

.clase-archivos-body.is-open {
  max-height: 700px;
}

/* Download all button */
.clase-dl-all {
  flex-shrink: 0;
}

/* ==========================================================================
   8. FILES LIST
   ========================================================================== */

.archivos-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.archivo-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  border: 0.5px solid var(--color-border);
  background-color: rgba(255, 255, 255, 0.02);
  transition: border-color var(--t-fast);
}

.archivo-item:hover {
  border-color: var(--color-border-hover);
}

.archivo-info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0; /* allows text truncation */
}

.archivo-icon {
  flex-shrink: 0;
  font-size: 1.25rem;
  color: var(--color-text-muted);
  font-variation-settings:
    "FILL" 0,
    "wght" 300,
    "GRAD" 0,
    "opsz" 24;
}

.archivo-nombre {
  font-size: 0.875rem;
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 425px;
}

.extras-list .archivo-nombre {
  max-width: 500px;
}

.archivo-desc {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 1px;
}

/* Ver / Descargar button */
.archivo-btn {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--t-fast);
  white-space: nowrap;
}

.archivo-btn:hover {
  color: var(--color-accent);
}

.archivo-btn .material-symbols-outlined {
  font-size: 1rem;
  font-variation-settings:
    "FILL" 0,
    "wght" 300,
    "GRAD" 0,
    "opsz" 20;
}

@media (width <= 500px) {
  .archivo-nombre {
    font-size: 0.8125rem;
    max-width: 100px;
  }

  .archivo-desc {
    display: none;
  }
}

@media (500px < width <= 600px) {
  .archivo-nombre {
    font-size: 0.8125rem;
    max-width: 150px;
  }

  .archivo-desc {
    display: none;
  }
}

@media (600px <width <= 650px) {
  .archivo-nombre {
    font-size: 0.8125rem;
    max-width: 200px;
  }
}

@media (650px < width <= 775px) {
  .archivo-nombre {
    font-size: 0.8125rem;
    max-width: 300px;
  }
}

@media (width <= 410px) {
  .extras-list .archivo-nombre {
    max-width: 125px;
  }
}

@media (410px < width <= 515px) {
  .extras-list .archivo-nombre {
    max-width: 200px;
  }
}

@media (515px < width <= 610px) {
  .extras-list .archivo-nombre {
    max-width: 300px;
  }
}

@media (610px < width <= 710px) {
  .extras-list .archivo-nombre {
    max-width: 400px;
  }
}

/* Footer styles are in global.css */