/* ------------------------------------------------------------------
   style.css
   Full d'estils de l'aplicació de positius.
   ------------------------------------------------------------------ */

:root {
  --blau:       #2f5d8a;
  --blau-fosc:  #1c3a57;
  --blau-suau:  #eaf1f8;
  --verd:       #2f8a5d;
  --verd-suau:  #e6f4ec;
  --ambre:      #c98a1c;

  --text-1: #1c2114;
  --text-2: #545e5e;
  --text-3: #8a9494;

  --surface: #ffffff;
  --bg-base: #f4f6f6;
  --border:  rgba(20, 30, 40, 0.10);

  --sh-card: 0 1px 2px rgba(20, 30, 40, 0.06), 0 4px 14px rgba(20, 30, 40, 0.06);
  --r-card: 14px;
  --r-btn: 100px;
}

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

html { height: 100%; }

body {
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--bg-base);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  color: var(--text-1);
  padding: 28px 18px 60px;
}

.contenidor {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
}

/* ── Capçalera ── */

header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

header h1 {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.2px;
}

.selector-wrap label {
  font-size: 12px;
  color: var(--text-2);
  margin-right: 6px;
}

#selector-grup {
  font: inherit;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: var(--r-btn);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-1);
}

#info-horari {
  display: block;
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 22px;
}

.info-horari-dia {
  font-weight: 700;
  color: var(--text-1);
}

/* ── Targeta de grup ── */

.targeta-grup {
  background: var(--surface);
  border-radius: var(--r-card);
  box-shadow: var(--sh-card);
  padding: 18px;
  margin-bottom: 22px;
}

.targeta-grup-cap {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 10px;
  margin-bottom: 14px;
}

#titol-grup {
  font-size: 17px;
  font-weight: 800;
  color: var(--blau-fosc);
}

.pista-clic {
  font-size: 12px;
  color: var(--text-3);
}

/* ── Graella de l'aula ── */

.graella-aula {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.fila-aula {
  display: grid;
  grid-template-columns: repeat(var(--taules-per-fila, 3), 1fr);
  gap: 10px;
}

.taula-parella {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 6px;
  background: var(--bg-base);
  border-radius: 10px;
  border: 1px dashed var(--border);
}

.alumne {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-height: 64px;
  padding: 8px 4px;
  border: none;
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--sh-card);
  cursor: pointer;
  font: inherit;
  color: var(--text-1);
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.alumne:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(20, 30, 40, 0.12);
}

.alumne:active {
  transform: translateY(0);
}

.alumne-nom {
  font-size: 13px;
  font-weight: 700;
  text-align: center;
  line-height: 1.15;
}

.alumne-comptador {
  font-size: 12px;
  font-weight: 800;
  color: var(--verd);
  letter-spacing: 1px;
  min-height: 14px;
}

.alumne--maxim {
  background: var(--verd-suau);
}
.alumne--maxim .alumne-comptador {
  color: var(--verd);
}

.alumne--rebot {
  animation: rebot 0.22s ease;
}
@keyframes rebot {
  0%, 100% { transform: translateX(0); }
  30% { transform: translateX(-4px); }
  60% { transform: translateX(4px); }
}

.alumne--buit {
  background: transparent;
  box-shadow: none;
  cursor: default;
}

/* ── Resum tipus full de càlcul ── */

.targeta-resum {
  background: var(--surface);
  border-radius: var(--r-card);
  box-shadow: var(--sh-card);
  padding: 18px;
  overflow-x: auto;
}

.targeta-resum h2 {
  font-size: 15px;
  font-weight: 800;
  color: var(--blau-fosc);
  margin-bottom: 12px;
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 13px;
  white-space: nowrap;
}

th, td {
  padding: 7px 10px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--text-2);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

td.resum-nom, th:first-child {
  text-align: left;
  font-weight: 600;
}

td.resum-total {
  font-weight: 800;
  color: var(--blau);
}

tr:last-child td { border-bottom: none; }

/* ── Exportar a Excel ── */

.targeta-exportar {
  background: var(--surface);
  border-radius: var(--r-card);
  box-shadow: var(--sh-card);
  padding: 18px;
  margin-top: 18px;
}

.targeta-exportar h2 {
  font-size: 15px;
  font-weight: 800;
  color: var(--blau-fosc);
  margin-bottom: 8px;
}

.exportar-ajuda {
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 14px;
  max-width: 60ch;
}

.exportar-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

#selector-tram-exportar {
  flex: 1 1 260px;
  font: inherit;
  font-size: 13px;
  padding: 9px 12px;
  border-radius: var(--r-btn);
  border: 1px solid var(--border);
  background: var(--bg-base);
  color: var(--text-1);
}

#boto-exportar {
  flex: 0 0 auto;
  font: inherit;
  font-weight: 700;
  font-size: 13px;
  padding: 9px 18px;
  border-radius: var(--r-btn);
  border: none;
  background: var(--blau);
  color: #fff;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.12s ease;
}

#boto-exportar:hover:not(:disabled) {
  background: var(--blau-fosc);
  transform: translateY(-1px);
}

#boto-exportar:disabled,
#selector-tram-exportar:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* ── Peu de pàgina ── */

footer {
  margin-top: 26px;
  text-align: center;
  font-size: 12px;
  color: var(--text-3);
}

/* ── Responsive ── */

@media (max-width: 640px) {
  .fila-aula {
    grid-template-columns: 1fr;
  }
  .alumne-nom {
    font-size: 14px;
  }
}