/* ============================================================
   PRAGMA ACADEMY — CSS v1.0
   Minimalista · Limpio · Funcional
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

/* Variables */
:root {
  --primary:    #1B7A84;
  --primary-d:  #145F6A;
  --primary-l:  #E8F4F6;
  --dark:       #1A1A2E;
  --gray:       #6C757D;
  --gray-l:     #F4F6F8;
  --border:     #DDE2E8;
  --white:      #FFFFFF;
  --success:    #28A745;
  --danger:     #DC3545;
  --radius:     8px;
  --shadow:     0 2px 12px rgba(0,0,0,0.07);
  --font:       'Inter', system-ui, sans-serif;
}

/* Base */
body {
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  color: var(--dark);
  background: var(--gray-l);
  min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-d); }
img { max-width: 100%; }

/* ── Header ── */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--dark);
}
.site-logo span {
  color: var(--primary);
}
.site-logo .badge {
  font-size: 10px;
  font-weight: 600;
  background: var(--primary-l);
  color: var(--primary);
  padding: 2px 8px;
  border-radius: 20px;
  letter-spacing: 0.5px;
}
.header-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.header-nav a {
  color: var(--gray);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius);
  transition: background 0.15s;
}
.header-nav a:hover { background: var(--gray-l); color: var(--dark); }

/* ── Contenedor ── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.page-content {
  padding: 40px 0 60px;
}

/* ── Hero ── */
.hero {
  background: linear-gradient(135deg, var(--dark) 0%, #16213E 100%);
  color: var(--white);
  padding: 64px 0;
  text-align: center;
}
.hero h1 {
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}
.hero h1 span { color: var(--primary); }
.hero p {
  font-size: 17px;
  opacity: 0.8;
  max-width: 560px;
  margin: 0 auto 32px;
}
.hero-badges {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.hero-badge {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--white);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 20px;
}

/* ── Sección ── */
.section-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}
.section-sub {
  color: var(--gray);
  margin-bottom: 32px;
  font-size: 15px;
}

/* ── Cards de cursos ── */
.cursos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.curso-card {
  background: var(--white);
  border-radius: 12px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}
.curso-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}
.curso-card-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-d) 100%);
  padding: 28px 24px;
  color: var(--white);
}
.curso-horas {
  font-size: 12px;
  font-weight: 600;
  background: rgba(255,255,255,0.2);
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.curso-card-header h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
}
.curso-card-body {
  padding: 20px 24px;
  flex: 1;
}
.curso-card-body p {
  color: var(--gray);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 20px;
}
.curso-card-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.curso-precio {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark);
}
.curso-precio small {
  font-size: 12px;
  font-weight: 400;
  color: var(--gray);
  display: block;
}

/* ── Botones ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  text-align: center;
}
.btn:active { transform: scale(0.98); }
.btn-primary {
  background: var(--primary);
  color: var(--white);
}
.btn-primary:hover { background: var(--primary-d); color: var(--white); }
.btn-dark {
  background: var(--dark);
  color: var(--white);
}
.btn-dark:hover { background: #2a2a3e; color: var(--white); }
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}
.btn-outline:hover { background: var(--primary-l); }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-block { width: 100%; justify-content: center; }
.btn-lg { padding: 14px 28px; font-size: 16px; }

/* ── Formularios ── */
.form-card {
  background: var(--white);
  border-radius: 12px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 36px;
  max-width: 480px;
  margin: 0 auto;
}
.form-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 6px;
}
.form-sub {
  color: var(--gray);
  font-size: 14px;
  margin-bottom: 28px;
}
.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: var(--font);
  color: var(--dark);
  background: var(--white);
  transition: border-color 0.15s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
}
.form-footer {
  margin-top: 20px;
  text-align: center;
  font-size: 13px;
  color: var(--gray);
}

/* ── Alertas ── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: 20px;
  border-left: 4px solid;
}
.alert-success { background: #D4EDDA; color: #155724; border-color: var(--success); }
.alert-danger  { background: #F8D7DA; color: #721C24; border-color: var(--danger); }
.alert-info    { background: var(--primary-l); color: var(--primary-d); border-color: var(--primary); }

/* ── Dashboard ── */
.dashboard-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 28px;
  align-items: start;
}
.sidebar {
  background: var(--white);
  border-radius: 12px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 24px;
}
.sidebar-user {
  text-align: center;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}
.sidebar-avatar {
  width: 56px;
  height: 56px;
  background: var(--primary-l);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 700;
  margin: 0 auto 12px;
}
.sidebar-user h4 { font-size: 16px; font-weight: 700; }
.sidebar-user p  { font-size: 13px; color: var(--gray); }
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius);
  color: var(--dark);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 4px;
  transition: background 0.15s;
}
.sidebar-nav a:hover,
.sidebar-nav a.active {
  background: var(--primary-l);
  color: var(--primary);
}

/* ── Mis cursos ── */
.mis-cursos { display: flex; flex-direction: column; gap: 16px; }
.mi-curso-card {
  background: var(--white);
  border-radius: 12px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.mi-curso-icono {
  width: 48px;
  height: 48px;
  background: var(--primary-l);
  color: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}
.mi-curso-info { flex: 1; }
.mi-curso-info h4 { font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.progress-bar-wrap {
  background: var(--gray-l);
  border-radius: 20px;
  height: 6px;
  overflow: hidden;
  margin-bottom: 4px;
}
.progress-bar {
  height: 100%;
  background: var(--primary);
  border-radius: 20px;
  transition: width 0.4s;
}
.progress-label { font-size: 12px; color: var(--gray); }

/* ── Lección ── */
.leccion-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 28px;
  align-items: start;
}
.video-wrap {
  background: #000;
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 16/9;
}
.video-wrap iframe {
  width: 100%;
  height: 100%;
  border: none;
}
.leccion-sidebar {
  background: var(--white);
  border-radius: 12px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  overflow: hidden;
}
.leccion-sidebar-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  font-weight: 700;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.leccion-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--dark);
  transition: background 0.15s;
}
.leccion-item:hover { background: var(--gray-l); }
.leccion-item.activa { background: var(--primary-l); color: var(--primary); font-weight: 600; }
.leccion-item.completada .lec-check { color: var(--success); }
.lec-check { width: 18px; text-align: center; flex-shrink: 0; }

/* ── Footer ── */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.6);
  text-align: center;
  padding: 28px 24px;
  font-size: 13px;
  margin-top: auto;
}
.site-footer strong { color: var(--white); }
.site-footer a { color: rgba(255,255,255,0.6); }
.site-footer a:hover { color: var(--white); }

/* ── Utils ── */
.text-center { text-align: center; }
.text-muted  { color: var(--gray); }
.mt-1 { margin-top: 8px;  }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px;  }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.gap-2 { gap: 16px; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.badge-pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}
.badge-success { background: #D4EDDA; color: #155724; }
.badge-warning { background: #FFF3CD; color: #856404; }
.badge-primary { background: var(--primary-l); color: var(--primary); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .dashboard-grid { grid-template-columns: 1fr; }
  .leccion-layout { grid-template-columns: 1fr; }
  .cursos-grid { grid-template-columns: 1fr; }
  .header-inner { padding: 0 16px; }
  .form-card { padding: 24px 20px; }
  .hero { padding: 40px 0; }
}