/* 
  Estils Base per a Materials Educatius Ideorum 
  Inspirat en ideorum.cat 
*/

:root {
  /* Colors Oficials Ideorum */
  --brand-teal: #1DAE9F;
  --brand-charcoal: #373A36;
  --brand-orange: #FAA633;
  --brand-red: #F35724;
  --brand-olive: #8B966C;
  
  /* Aliases i Aplicació */
  --primary-teal: var(--brand-teal);
  --primary-navy: var(--brand-charcoal);
  --secondary-amber: var(--brand-orange);
  --action-red: var(--brand-red);
  
  /* Fons de Secció (Pastels Ideorum) */
  --bg-pink: #FDF2F0;
  --bg-blue: #E8F7F9;
  --bg-beige: #FFF9F2;
  --bg-green: #F2F9F2;
  
  /* Text */
  --text-main: var(--brand-charcoal);
  --text-muted: #7F8C8D;
  
  /* Fons */
  --bg-main: #F8F9FA;
  --bg-card: #FFFFFF;
  
  /* Suport Educatiu (Categories) */
  --cat-math: #E3F2FD;
  --cat-science: #E8F5E9;
  --cat-history: #FBE9E7;
  --cat-language: #FFF3E0;
  
  /* Espaiat i Borde */
  --radius-sm: 8px;
  --radius-md: 12px;
  --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* Tipografia */
h1, h2, h3, h4 {
  color: var(--primary-navy);
  font-weight: 700;
  margin-bottom: 1rem;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; border-left: 5px solid var(--primary-teal); padding-left: 15px; }
h3 { font-size: 1.5rem; }

a {
  color: var(--primary-teal);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  filter: brightness(0.9);
}

/* Botons */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 50px; /* Estil píndola per a tots els botons */
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-align: center;
}

.btn-primary {
  background-color: var(--primary-teal);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  background-color: #219185;
}

.btn-secondary {
  background-color: transparent;
  border: 2px solid var(--primary-teal);
  color: var(--primary-teal);
}

.btn-action {
  background-color: var(--secondary-amber);
  color: white;
}

/* Targetes (Cards) */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid rgba(0,0,0,0.02);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-math { background-color: var(--cat-math); }
.card-science { background-color: var(--cat-science); }
.card-history { background-color: var(--cat-history); }

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

/* Layout striped (Seccions) */
section.striped {
  padding: 4rem 0;
  margin: 0;
}

section.bg-pink { background-color: var(--bg-pink); }
section.bg-blue { background-color: var(--bg-blue); }
section.bg-beige { background-color: var(--bg-beige); }
section.bg-green { background-color: var(--bg-green); }

/* Acordions (Revelar contingut) */
.accordion {
  margin: 1rem 0;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.accordion-header {
  background: white;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  border: 1px solid rgba(0,0,0,0.05);
}

.accordion-content {
  display: none;
  padding: 1.5rem;
  background: rgba(255,255,255,0.5);
}

.accordion.open .accordion-content {
  display: block;
}

.accordion-header::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--primary-teal);
}

.accordion.open .accordion-header::after {
  content: '−';
}

/* Centratge de titulars */
.text-center { text-align: center; }
.header-centered { max-width: 800px; margin: 0 auto 3rem auto; }

/* Selector DUA (Vies d'accés) */
.dua-selector {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  background: white;
  padding: 1rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 1rem;
  z-index: 100;
}

.dua-btn {
  padding: 8px 16px;
  border: 1px solid var(--primary-teal);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--primary-teal);
  cursor: pointer;
  font-weight: 500;
  transition: all 0.2s ease;
}

.dua-btn.active {
  background: var(--primary-teal);
  color: white;
}

/* Contingut DUA (Ocult/Visible) */
.dua-content {
  display: none;
  animation: fadeIn 0.3s ease;
}

.dua-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* La Bastida Lèxica (Glossari) */
u, .concepte-clau {
  text-decoration: none;
  border-bottom: 2px dashed var(--brand-orange);
  color: var(--primary-navy);
  font-weight: 600;
  cursor: help;
  transition: background 0.2s;
}

.concepte-clau:hover {
  background: rgba(250, 166, 51, 0.1);
}

/* Activitats LOMLOE */
.activitat-lomloe {
  margin: 2rem 0;
  padding: 2rem;
  border-radius: var(--radius-md);
  border-left: 6px solid var(--primary-teal);
  background: white;
  box-shadow: var(--shadow-sm);
}

.activitat-lomloe span.emoji {
  font-size: 1.5rem;
  margin-right: 0.5rem;
}

.activitat-lomloe.act-investigar { border-color: var(--brand-teal); }
.activitat-lomloe.act-situarse { border-color: var(--brand-olive); }
.activitat-lomloe.act-explicar { border-color: var(--brand-orange); }
.activitat-lomloe.act-participar { border-color: var(--brand-red); }

/* Modals de Glossari */
.glossary-modal {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: white;
  padding: 2.5rem;
  border-radius: var(--radius-md);
  max-width: 500px;
  position: relative;
  box-shadow: var(--shadow-md);
}

.close-btn {
  position: absolute;
  top: 10px; right: 15px;
  font-size: 1.5rem;
  cursor: pointer;
}
/* Enllaços ràpids (Quick Links) */
.quick-link {
  display: block;
  padding: 8px 12px;
  background: white;
  border-radius: var(--radius-sm);
  color: var(--brand-charcoal);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  border: 1px solid rgba(0,0,0,0.05);
  transition: all 0.2s ease;
}

.quick-link:hover {
  background: var(--brand-teal);
  color: white;
  transform: translateX(5px);
  border-color: var(--brand-teal);
}