/* ═════════════════════════════════════════════════════════
   Instituto Bíblico Bautista — LMS
   styles.css — Hoja de estilos global completa v9
   Tema: Crema editorial / Navy & Gold
   ═════════════════════════════════════════════════════════ */
@import url('https://cdn.jsdelivr.net/npm/@tabler/icons-webfont@2.47.0/tabler-icons.min.css');

/* ── Variables ────────────────────────────────────────── */
:root {
  --navy:         #000a23;
  --navy-light:   #001440;
  --gold:         #d19309;
  --gold-light:   #F3C332;
  --gold-pale:    #f5edd0;
  --teal:         #0A8AA3;
  --white:        #ffffff;
  --gray-soft:    #d4cfc7;
  --gray-mid:     #a89f8c;

  /* Superficies */
  --bg:           #FAF7F0;
  --bg-card:      #ffffff;
  --bg-sidebar:   #f0ece0;

  /* Paleta azul (nueva) */
  --azul:         #99b8db;
  --azul-pale:    #e4eff6;
  --azul-deep:    #5b86b4;

  /* Texto */
  --text:         #1a1228;
  --text-soft:    #4a4560;
  --text-muted:   #6b6880;

  /* Bordes y sombras */
  --border:       rgba(0,10,35,0.1);
  --border-gold:  rgba(209,147,9,0.35);
  --shadow:       0 2px 20px rgba(0,10,35,0.08);
  --shadow-lg:    0 6px 32px rgba(0,10,35,0.12);

  /* Radio */
  --radius:       6px;
  --radius-lg:    12px;

  /* Tipografía — toda la interfaz en Roboto */
  --font-title:   'Roboto', sans-serif;
  --font-body:    'Roboto', sans-serif;
  --font-ui:      'Roboto', sans-serif;
  --font-serif:   'IM Fell English', 'Georgia', serif; /* reservado para versículos si se quiere */

  /* Pesos Roboto (jerarquía) */
  --fw-thin:      100;
  --fw-light:     300;
  --fw-regular:   400;
  --fw-medium:    500;
  --fw-bold:      700;
  --fw-black:     900;
}

/* ── Reset ────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: var(--fw-regular);
  line-height: 1.7;
  min-height: 100vh;
}
img { max-width: 100%; display: block; }
a { color: var(--gold); text-decoration: none; transition: color 0.2s; }
a:hover { color: #a87600; }

/* ── Tipografía ───────────────────────────────────────────
   Jerarquía construida con la familia Roboto completa:
   Light (300) para títulos grandes → look editorial moderno,
   Regular/Medium (400/500) para subtítulos, Bold (700) para
   apoyos y Black (900) para cifras destacadas.
   ──────────────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-title);
  color: var(--navy);
}
h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: var(--fw-light);     /* 300 */
  line-height: 1.15;
  letter-spacing: -0.02em;
}
h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: var(--fw-regular);   /* 400 */
  line-height: 1.2;
  letter-spacing: -0.01em;
}
h3 {
  font-size: 1.15rem;
  font-weight: var(--fw-medium);    /* 500 */
  line-height: 1.3;
}
h4 {
  font-size: 1rem;
  font-weight: var(--fw-bold);      /* 700 */
  line-height: 1.3;
  letter-spacing: 0.01em;
}
p  { margin-bottom: 1rem; color: var(--text-soft); font-weight: var(--fw-regular); }

.divider-gold {
  width: 80px; height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  margin: 1rem auto;
  border: none;
}
.divider-gold.left { margin-left: 0; }

/* ── Navbar ───────────────────────────────────────────── */
.navbar {
  background: var(--navy);
  border-bottom: 2px solid var(--gold);
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.navbar-brand { display: flex; align-items: center; gap: 0.75rem; }
.brand-icon {
  width: 36px; height: 36px;
  background: var(--gold);
  border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-title);
  font-size: 1.1rem;
  color: var(--navy);
  flex-shrink: 0;
}
.brand-name {
  font-family: var(--font-title);
  font-size: 1rem;
  color: #f5f0e8;
  line-height: 1.2;
}
.brand-name span {
  display: block;
  font-size: 0.7rem;
  color: var(--gold-light);
  letter-spacing: 0.1em;
}
.navbar-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}
.navbar-links a {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: var(--fw-medium);
  color: rgba(255,255,255,0.92);          /* claro casi blanco, constante */
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius);
  transition: background 0.18s ease;
}
.navbar-links a:hover {
  background: rgba(255,255,255,0.10);      /* contenedor baja opacidad (como "Salir") */
  color: rgba(255,255,255,0.92);           /* el color de la letra NO cambia */
}
.navbar-links a.active {
  background: rgba(255,255,255,0.14);      /* misma idea, algo más marcado para la página actual */
  color: rgba(255,255,255,0.92);
}
.btn-nav {
  background: var(--gold);
  color: var(--navy) !important;
  padding: 0.38rem 1.1rem;
  border-radius: var(--radius);
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
}
.btn-nav:hover { background: rgba(209,147,9,0.15); color: var(--gold) !important; }

/* Menú móvil */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--gold);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ── Botones ──────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0.01em;
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}
.btn-primary { background: var(--gold); color: var(--navy); }
.btn-primary:hover {
  background: #b87d00; color: var(--navy);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(209,147,9,0.3);
}
.btn-outline { background: transparent; color: var(--navy); border: 1.5px solid var(--navy); }
.btn-outline:hover { background: var(--navy); color: #f5f0e8; }
.btn-ghost { background: rgba(0,10,35,0.06); color: var(--text-soft); border: 1px solid var(--border); }
.btn-ghost:hover { background: rgba(0,10,35,0.1); }
.btn-danger { background: #c0392b; color: #fff; }
.btn-danger:hover { background: #a93226; }
.btn-sm { padding: 0.35rem 0.9rem; font-size: 0.75rem; }
.btn-full { width: 100%; justify-content: center; }

/* Modificadores de hover para los botones del panel */
.btn-lift:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(0,10,35,0.18);
}
.btn-hover-azul:hover {
  background: var(--navy);
  color: #f5f0e8;
  border-color: var(--navy);
}

/* ── Cards ────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-shadow: var(--shadow);
}
.card:hover { border-color: var(--border-gold); box-shadow: var(--shadow-lg); }
.card-gold-top { border-top: 3px solid var(--gold); }

/* ── Formularios ──────────────────────────────────────── */
.form-group { margin-bottom: 1.25rem; }
.form-label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: var(--fw-medium);
  color: var(--text-soft);
  margin-bottom: 0.4rem;
}
.form-control {
  width: 100%;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: var(--fw-regular);
  padding: 0.65rem 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.form-control:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(209,147,9,0.12);
  background: #fff;
}
.form-control::placeholder { color: var(--text-muted); }
select.form-control option { background: #fff; color: var(--text); }
textarea.form-control { resize: vertical; min-height: 100px; }

/* ── Alertas ──────────────────────────────────────────── */
.alert {
  padding: 0.85rem 1.2rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  margin-bottom: 1rem;
  border: 1px solid;
}
.alert-success { background: #e8f8f0; border-color: #27ae60; color: #1e7e45; }
.alert-error   { background: #fdf0f0; border-color: #c0392b; color: #922b21; }
.alert-info    { background: var(--gold-pale); border-color: var(--border-gold); color: #7a5500; }

/* ── Progreso ─────────────────────────────────────────── */
.progress-wrap {
  background: rgba(0,10,35,0.08);
  border-radius: 100px;
  height: 8px;
  overflow: hidden;
}
.progress-bar {
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  border-radius: 100px;
  transform: scaleX(var(--p, 0));
  transform-origin: left;
  transition: transform 0.6s ease;
}
.progress-label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--gold);
  margin-top: 0.3rem;
  text-align: right;
}

/* ── Badges ───────────────────────────────────────────── */
.badge {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.68rem;
  font-weight: var(--fw-bold);
  padding: 0.22rem 0.65rem;
  border-radius: 100px;
  border: 1px solid transparent;
}
.badge-gold    { background: #d19309; color: #000a23; border-color: rgba(209,147,9,0.5); }
.badge-teal    { background: var(--azul-pale); color: var(--azul-deep); border-color: rgba(91,134,180,0.4); }
.badge-success { background: #e8f8f0; color: #1e7e45; border-color: rgba(39,174,96,0.3); }
.badge-gray    { background: rgba(0,10,35,0.06); color: var(--text-muted); border-color: var(--border); }

/* ── Layout sidebar ───────────────────────────────────── */
.main-layout {
  display: grid;
  grid-template-columns: 255px 1fr;
  min-height: calc(100vh - 68px);
}
.sidebar {
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  padding: 1.75rem 0;
  position: sticky;
  top: 68px;
  height: calc(100vh - 68px);
  overflow-y: auto;
}
.sidebar-section-label {
  font-family: var(--font-ui);
  font-size: 0.65rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0 1.25rem;
  margin-bottom: 0.4rem;
}
.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.55rem 1.25rem;
  color: var(--text-soft);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: var(--fw-regular);
  transition: all 0.15s;
  text-decoration: none;
}
.sidebar-link:hover { background: rgba(0,10,35,0.05); color: var(--navy); }
.sidebar-link.active {
  background: var(--gold-pale);
  color: #7a5500;
  font-weight: var(--fw-medium);
}
.sidebar-link .icon { font-size: 1rem; width: 20px; text-align: center; }
.main-content { padding: 2rem; overflow-x: hidden; background: var(--bg); }

/* ── Upload areas ─────────────────────────────────────── */
.upload-area {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  background: var(--bg);
}
.upload-area:hover { border-color: var(--gold); background: var(--gold-pale); }
.upload-area input[type=file] { display: none; }

.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--bg);
}
.upload-zone:hover { border-color: var(--gold); background: var(--gold-pale); }
.upload-zone input[type=file] { display: none; }

/* ── Examen ───────────────────────────────────────────── */
.exam-wrap { max-width: 760px; margin: 0 auto; padding: 3rem 2rem; }

.preg-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow);
}
.preg-meta {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.preg-text {
  color: var(--navy);
  font-size: 1.05rem;
  margin-bottom: 1rem;
  font-family: var(--font-body);
  line-height: 1.6;
}

.opcion-lbl {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1rem;
  border-radius: var(--radius);
  border: 1.5px solid var(--border);
  cursor: pointer;
  margin-bottom: 0.5rem;
  color: var(--text-soft);
  transition: all 0.15s;
  background: var(--bg);
}
.opcion-lbl:hover { border-color: var(--gold); color: var(--navy); background: var(--gold-pale); }
.opcion-lbl input { accent-color: var(--gold); }

.result-box {
  background: var(--bg-card);
  border: 2px solid var(--gold);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  text-align: center;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-lg);
}
.result-score {
  font-family: var(--font-title);
  font-size: 4.5rem;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.intentos-badge {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ── Comentarios ──────────────────────────────────────── */
.comment-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  margin-bottom: 0.75rem;
  transition: border-color 0.15s;
}
.comment-card:hover { border-color: var(--border-gold); }
.comment-card .meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}
.comment-item { padding: 0.85rem 0; border-bottom: 1px solid var(--border); }
.comment-item:last-child { border-bottom: none; }
.comment-meta { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 0.25rem; }

/* ── Notificaciones admin ─────────────────────────────── */
.notif-row {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}
.notif-row:last-child { border-bottom: none; }
.notif-row:hover { background: var(--bg); }
.notif-icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 0.1rem; }
.notif-titulo { font-weight: 700; color: var(--navy); font-size: 0.95rem; margin-bottom: 0.2rem; }
.notif-msg    { font-size: 0.88rem; color: var(--text-soft); margin-bottom: 0.35rem; }
.notif-meta   { font-size: 0.75rem; color: var(--text-muted); }
.notif-bar {
  background: #fdf3d0;
  border: 1px solid rgba(209,147,9,0.4);
  border-radius: var(--radius);
  padding: 0.75rem 1.25rem;
  font-size: 0.9rem;
  color: #7a5500;
  margin-bottom: 1.5rem;
}

/* ── Entregas admin ───────────────────────────────────── */
.entrega-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow);
}
.entrega-card.pendiente { border-top: 3px solid var(--gold); }
.entrega-card.revisada  { border-top: 3px solid #27ae60; opacity: 0.88; }
.entrega-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.25rem;
}
.entrega-meta strong { color: var(--navy); }
.respuesta-texto {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  color: var(--text-soft);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1rem;
  white-space: pre-wrap;
}
.cal-form {
  background: var(--bg);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-top: 0.75rem;
}
.cal-form .form-label { color: var(--navy); }
.cal-form .form-control { background: var(--bg-card); }
.nota-display { font-family: var(--font-title); font-size: 2rem; color: var(--gold); }

/* ── Comentarios admin ────────────────────────────────── */
.com-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.1rem;
  box-shadow: var(--shadow);
}
.com-card.pendiente  { border-top: 3px solid var(--gold); }
.com-card.respondido { border-top: 3px solid #27ae60; opacity: 0.88; }
.com-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.25rem;
  margin-bottom: 0.85rem;
}
.com-meta strong { color: var(--navy); }
.com-mensaje {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  font-size: 0.95rem;
  color: var(--text-soft);
  line-height: 1.6;
  margin-bottom: 1rem;
  white-space: pre-wrap;
}
.com-respuesta {
  background: rgba(39,174,96,0.07);
  border: 1px solid rgba(39,174,96,0.25);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  font-size: 0.9rem;
  color: var(--text-soft);
  line-height: 1.6;
  margin-bottom: 0.5rem;
}
.reply-form {
  background: var(--bg);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-top: 0.5rem;
}

/* ── Tabs ─────────────────────────────────────────────── */
.tabs {
  display: flex;
  background: var(--bg);
  border-radius: var(--radius);
  padding: 4px;
  margin-bottom: 1.75rem;
  border: 1px solid var(--border);
}
.tab-btn {
  flex: 1;
  padding: 0.5rem;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  border: none;
  border-radius: calc(var(--radius) - 2px);
  cursor: pointer;
  transition: all 0.2s;
  background: transparent;
  color: var(--text-muted);
}
.tab-btn.active { background: var(--navy); color: var(--gold); }

.tabs-nav {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: 2rem;
}
.tab-item {
  padding: 0.65rem 1.5rem;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  color: var(--text-muted);
  transition: all 0.2s;
}
.tab-item.active { color: var(--navy); border-bottom-color: var(--gold); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Dashboard stats ──────────────────────────────────── */
.stat-card {
  background: var(--navy);
  border: 1px solid rgba(209,147,9,0.25);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
}
.stat-icon {
  width: 46px; height: 46px;
  background: rgba(209,147,9,0.2);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.stat-num   { font-family: var(--font-title); font-size: 2rem; color: var(--gold); line-height: 1; }
.stat-label { font-family: var(--font-ui); font-size: 0.72rem; font-weight: 700; color: rgba(245,240,232,0.55); margin-top: 0.25rem; }

/* ── Welcome bar ──────────────────────────────────────── */
.welcome-bar {
  background: var(--navy);
  border-radius: var(--radius-lg);
  padding: 1.5rem 2rem;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.welcome-bar h2 { color: #f5f0e8; font-size: 1.4rem; margin: 0.2rem 0 0; }
.welcome-bar .eyebrow {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  color: var(--gold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ── Portadas de cursos ───────────────────────────────── */
.cursos-portada-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}
.curso-portada-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.curso-portada-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-gold);
}
.portada-thumb {
  position: relative;
  height: 168px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}
.portada-img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
.portada-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,5,20,0.72) 0%, rgba(0,5,20,0.15) 60%, transparent 100%);
}
.portada-icono {
  font-size: 3rem; z-index: 1;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.4));
}
.portada-icono-hero {
  font-size: 5rem;
  position: absolute; right: 3rem; top: 50%;
  transform: translateY(-50%);
  opacity: 0.25;
}
.portada-pct-badge {
  position: absolute; top: 0.75rem; right: 0.75rem;
  background: rgba(209,147,9,0.92);
  color: #000a23;
  font-family: var(--font-ui);
  font-size: 0.72rem; font-weight: 700;
  border-radius: 999px;
  padding: 0.2rem 0.6rem;
  z-index: 2;
}
.portada-pct-badge.pct-done { background: rgba(39,174,96,0.92); color: #fff; }
.portada-lock {
  position: absolute; bottom: 0.6rem; right: 0.75rem;
  font-size: 0.72rem; color: rgba(245,240,232,0.7); z-index: 2;
}
.portada-info { padding: 1.1rem 1.25rem 1.25rem; }
.portada-titulo { font-size: 1rem; color: var(--navy); margin: 0 0 0.3rem; line-height: 1.3; }
.portada-instructor { font-size: 0.78rem; color: var(--gold); margin: 0 0 0.5rem; }
.portada-desc { font-size: 0.84rem; color: var(--text-muted); margin: 0 0 0.75rem; line-height: 1.5; }
.portada-progress-wrap { height: 4px; background: var(--border); border-radius: 999px; margin-bottom: 0.75rem; overflow: hidden; }
.portada-progress-bar { height: 100%; width: 100%; background: var(--gold); border-radius: 999px; transform-origin: left center; transform: scaleX(var(--p, 0)); transition: transform 0.4s ease-out; }
.portada-cta { font-family: var(--font-ui); font-size: 0.75rem; font-weight: 700; color: var(--gold); letter-spacing: 0.05em; }
.portada-hero {
  border-radius: var(--radius-lg);
  position: relative; overflow: hidden;
  min-height: 240px;
  display: flex; align-items: flex-end;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-gold);
}
.portada-hero .portada-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to right, rgba(0,5,20,0.88) 0%, rgba(0,5,20,0.3) 100%);
}
.portada-hero-content { position: relative; z-index: 1; max-width: 520px; }
.portada-eyebrow { font-family: var(--font-ui); font-size: 0.68rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold); margin-bottom: 0.4rem; }
.portada-hero-titulo { font-size: 1.6rem; color: #f5f0e8; margin: 0 0 0.35rem; }
.portada-hero-inst   { font-size: 0.85rem; color: var(--gold); margin: 0 0 0.5rem; }
.portada-hero-desc   { font-size: 0.9rem; color: rgba(245,240,232,0.75); margin: 0; line-height: 1.5; }

/* ── Perfil: notas ────────────────────────────────────── */
.nota-row {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 0.5rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.nota-row:last-child { border-bottom: none; }
.nota-curso { font-size: 0.75rem; color: var(--text-muted); }
.nota-score { font-family: var(--font-title); font-size: 1.3rem; color: var(--gold); line-height: 1; min-width: 3rem; text-align: right; }
.nota-display { font-family: var(--font-title); font-size: 2rem; color: var(--gold); }

/* ── Perfil: cert cards ───────────────────────────────── */
.cert-card {
  background: var(--bg-card);
  border: 2px solid var(--gold);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  position: relative; overflow: hidden;
  box-shadow: var(--shadow);
}
.cert-card::before {
  content: '✦'; position: absolute; top: -12px; left: -12px;
  font-size: 5rem; color: rgba(209,147,9,0.06);
  font-family: var(--font-title); line-height: 1;
}
.cert-card h4 { color: var(--navy); margin-bottom: 0.2rem; font-size: 1.05rem; }
.cert-meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.75rem; }
.cert-ready {
  background: var(--bg-card);
  border: 2px dashed var(--gold);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex; align-items: center;
  justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
}
.cert-ready h4 { color: var(--navy); margin: 0 0 0.2rem; font-size: 1rem; }
.cert-ready p  { margin: 0; font-size: 0.85rem; color: var(--text-muted); }

/* ── Auth ─────────────────────────────────────────────── */
.auth-bg {
  flex: 1; display: flex;
  align-items: center; justify-content: center;
  padding: 3rem 1.5rem;
  background: var(--bg);
}
.auth-card {
  width: 100%; max-width: 430px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}
.auth-logo { text-align: center; margin-bottom: 2rem; }
.auth-logo .icon {
  width: 54px; height: 54px;
  background: var(--navy);
  border-radius: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-title); font-size: 1.5rem; color: var(--gold);
  margin-bottom: 0.85rem;
}
.auth-logo h2 { font-size: 1.25rem; margin-bottom: 0.2rem; }
.auth-logo p  { font-size: 0.85rem; color: var(--text-muted); margin: 0; }
.auth-footer { margin-top: 1.25rem; text-align: center; font-size: 0.85rem; color: var(--text-muted); }

/* ── Landing page ─────────────────────────────────────── */
.hero {
  min-height: 90vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 4rem 2rem;
  background: var(--navy);
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(209,147,9,0.12) 0%, transparent 60%),
    repeating-linear-gradient(0deg, rgba(209,147,9,0.02) 0px, rgba(209,147,9,0.02) 1px, transparent 1px, transparent 60px),
    repeating-linear-gradient(90deg, rgba(209,147,9,0.02) 0px, rgba(209,147,9,0.02) 1px, transparent 1px, transparent 60px);
}
.hero-content { position: relative; z-index: 1; max-width: 780px; }
.hero-eyebrow {
  font-family: var(--font-ui); font-size: 0.72rem;
  letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 1.2rem;
}
.hero h1 { color: #f5f0e8; margin-bottom: 0.5rem; }
.hero-subtitle { font-size: 1.2rem; color: rgba(245,240,232,0.7); max-width: 560px; margin: 0 auto 2.5rem; }
.hero-verse {
  font-family: 'IM Fell English', Georgia, serif; font-style: italic;
  font-size: 1.05rem; color: var(--gold);
  margin-top: 2.5rem;
  border-top: 1px solid rgba(209,147,9,0.3);
  padding-top: 1.5rem;
}
.section { padding: 5rem 2rem; max-width: 1100px; margin: 0 auto; }
.section-label {
  font-family: var(--font-ui); font-size: 0.72rem;
  letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 0.75rem; display: block;
}
.eyebrow {
  font-family: var(--font-ui); font-size: 0.7rem;
  color: var(--gold); letter-spacing: 0.12em; text-transform: uppercase;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem; margin-top: 2rem;
}
.feature-card {
  background: rgba(0,20,64,0.5);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem; text-align: center;
}
.feature-icon { font-size: 2rem; margin-bottom: 1rem; display: block; }
.features-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem 3.5rem;
  list-style: none;
  padding: 0; margin: 0;
}
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.feature-item-icon {
  flex-shrink: 0;
  width: 2.25rem; height: 2.25rem;
  display: flex; align-items: center; justify-content: center;
  color: var(--navy);
  margin-top: 0.1rem;
}
.feature-item-title {
  color: var(--navy);
  font-size: 1rem; font-weight: var(--fw-medium);
  margin: 0 0 0.3rem;
}
.feature-item-desc {
  color: var(--text-soft);
  font-size: 0.875rem; margin: 0;
  line-height: 1.55;
}
.ico-md { width: 1.5rem; height: 1.5rem; }
.ico-xl { width: 2.5rem; height: 2.5rem; display: inline-block; vertical-align: middle; }
.cta-section {
  background: linear-gradient(135deg, rgba(209,147,9,0.12), rgba(0,51,102,0.3));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 5rem 2rem; text-align: center;
}
.verse-block {
  font-family: 'IM Fell English', Georgia, serif; font-style: italic;
  font-size: 1.25rem; color: var(--gold);
  text-align: center; max-width: 680px;
  margin: 0 auto; padding: 2rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.verse-ref {
  display: block; font-style: normal;
  font-size: 0.85rem; color: var(--gray-mid);
  margin-top: 0.75rem; letter-spacing: 0.1em;
}
.verse {
  text-align: center; font-family: var(--font-title);
  font-style: italic; font-size: 0.88rem;
  color: var(--text-muted); margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

/* ── Reproductor audio ────────────────────────────────── */
.audio-player {
  background: var(--navy); border-radius: var(--radius-lg);
  padding: 1.5rem; margin-bottom: 1.5rem;
}
.audio-player h4 { color: var(--gold-light); margin-bottom: 0.75rem; }
audio { width: 100%; border-radius: var(--radius); }

/* ── Tablas ───────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-family: var(--font-body); }
thead th {
  font-family: var(--font-ui); font-size: 0.72rem; font-weight: 700;
  color: var(--text-muted); padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--border);
  text-align: left; background: var(--bg);
}
tbody td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-soft); font-size: 0.95rem;
}
tbody tr:hover td { background: rgba(209,147,9,0.04); }

/* ── Avatar ───────────────────────────────────────────── */
.avatar {
  width: 64px; height: 64px;
  background: var(--navy); border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-title); font-size: 1.5rem;
  color: var(--gold); margin-bottom: 0.75rem;
}
.member-since { font-family: var(--font-title); font-style: italic; color: var(--gold); font-size: 1rem; }

/* ── PDF badge ────────────────────────────────────────── */
.pdf-badge {
  display: inline-flex; align-items: center; gap: 0.4rem;
  background: rgba(10,138,163,0.15); color: var(--teal);
  border: 1px solid rgba(10,138,163,0.3);
  border-radius: var(--radius); padding: 0.2rem 0.6rem; font-size: 0.78rem;
}

/* ── Footer ───────────────────────────────────────────── */
footer {
  background: var(--navy); border-top: 2px solid var(--gold);
  padding: 2rem; text-align: center;
  color: rgba(245,240,232,0.5); font-size: 0.88rem;
}
.footer-brand { font-family: var(--font-title); font-size: 1.1rem; color: var(--gold); margin-bottom: 0.35rem; }

/* ── Utilidades ───────────────────────────────────────── */
.text-gold    { color: var(--gold)    !important; }
.text-teal    { color: var(--teal)    !important; }
.text-muted   { color: var(--text-muted) !important; }
.text-center  { text-align: center; }
.text-right   { text-align: right; }
.mt-1 { margin-top: 0.5rem; }   .mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }   .mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; } .mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; } .mb-4 { margin-bottom: 2rem; }
.d-flex          { display: flex; }
.align-center    { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; } .gap-2 { gap: 1rem; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.25rem; }
.w-100 { width: 100%; }
.visible { display: block !important; }
.icon { font-size: 1rem; width: 20px; text-align: center; }

/* ── Responsive ───────────────────────────────────────── */

/* Tablet grande — sidebar colapsa */
@media (max-width: 900px) {
  .main-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: relative; top: 0; height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    align-items: center;
  }
  .sidebar-section-label { display: none; }
  .sidebar-link {
    padding: 0.5rem 1rem;
    font-size: 0.88rem;
    border-left: none;
  }
  .sidebar-link.active { border-bottom: 2px solid var(--gold); }
  /* Bloque de avatar en sidebar — compacto en tablet */
  .sidebar > div:first-child {
    width: 100%; padding: 0.75rem 1.25rem !important;
    display: flex; align-items: center; gap: 0.75rem;
    border-bottom: 1px solid var(--border) !important;
    text-align: left !important; margin-bottom: 0 !important;
  }
  .sidebar > div:first-child .avatar {
    width: 36px; height: 36px; font-size: 1rem; margin-bottom: 0;
  }
  .main-content { padding: 1.25rem; }
  .exam-wrap { padding: 1.5rem 1rem; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

/* Tablet / móvil grande */
@media (max-width: 768px) {
  /* Navbar hamburguesa */
  .navbar { padding: 0 1.25rem; position: relative; }
  .navbar-links {
    display: none;
    flex-direction: column;
    gap: 0;
  }
  .navbar-links.open {
    display: flex;
    position: absolute; top: 68px; left: 0; right: 0;
    background: var(--navy);
    border-bottom: 2px solid var(--gold);
    padding: 0.5rem 0;
    z-index: 200;
  }
  .navbar-links.open li { width: 100%; }
  .navbar-links.open a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: rgba(245,240,232,0.85) !important;
    border-bottom: 1px solid rgba(255,255,255,0.05);
  }
  .navbar-links.open a:hover { background: rgba(255,255,255,0.05); }
  .navbar-links.open .btn-nav {
    display: block;
    margin: 0.5rem 1.5rem;
    text-align: center;
    border-radius: var(--radius);
  }
  .nav-toggle { display: flex; }

  /* Grids a 1 columna */
  .grid-2, .cursos-portada-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }

  /* Hero landing */
  .hero {
    min-height: auto;
    padding: 4rem 1.25rem 3rem;
  }
  .hero-content { max-width: 100%; }
  .hero h1 { font-size: clamp(1.8rem, 6vw, 2.8rem); }
  .hero-subtitle {
    font-size: 1rem;
    max-width: 100%;
    margin-bottom: 2rem;
  }
  .hero-verse { font-size: 0.82rem; }

  /* Dashboard welcome bar */
  .welcome-bar {
    flex-direction: column;
    align-items: flex-start;
    padding: 1.25rem;
  }
  .welcome-bar h2 { font-size: 1.2rem; }

  /* Stats */
  .stat-card { padding: 1rem; gap: 0.85rem; }
  .stat-icon { width: 38px; height: 38px; }
  .stat-num  { font-size: 1.5rem; }

  /* Cards */
  .card { padding: 1.1rem; }
  .auth-card { padding: 1.5rem; margin: 1rem; }

  /* Portadas */
  .portada-thumb { height: 130px; }
  .portada-info  { padding: 0.85rem 1rem 1rem; }
  .portada-titulo { font-size: 0.95rem; }

  /* Portada hero en index */
  .portada-hero { min-height: 180px; padding: 1.25rem; }
  .portada-hero-titulo { font-size: 1.25rem; }

  /* Examen */
  .exam-wrap { padding: 1rem 0.75rem; }
  .preg-card { padding: 1.1rem; }

  /* Tabla historial — scroll horizontal */
  .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

  /* Tabs */
  .tabs-nav { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .tab-item  { white-space: nowrap; padding: 0.6rem 1rem; }

  /* Auth */
  h2 { font-size: 1.4rem; }

  /* Features list — columna única en móvil */
  .features-list { grid-template-columns: 1fr; gap: 1.5rem; }
}

/* Móvil pequeño */
@media (max-width: 480px) {
  .navbar { padding: 0 1rem; }

  /* Sección landing */
  .section { padding: 2.5rem 1rem; }
  .hero    { padding: 3rem 1rem 2.5rem; }
  .hero h1 { font-size: 1.75rem; }
  .features-grid { grid-template-columns: 1fr; gap: 1rem; }

  /* Grid stats a 1 columna */
  .grid-3 { grid-template-columns: 1fr; }

  /* Stat cards horizontales compactas */
  .stat-card { flex-direction: row; }

  /* Botones full width en móvil pequeño */
  .welcome-bar .btn { width: 100%; text-align: center; justify-content: center; }
  .btn { min-height: 44px; padding: 0.75rem 1.5rem; }

  /* Cert cards */
  .cert-card, .cert-ready { padding: 1rem; }

  /* Form grid a 1 columna */
  .grid-2[style*="gap:1rem"] { grid-template-columns: 1fr; }

  /* Comentarios admin meta en columna */
  .com-meta, .entrega-meta { flex-direction: column; gap: 0.25rem; }

  /* Historial notas */
  .nota-row { flex-direction: column; align-items: flex-start; }
  .nota-score { font-size: 1rem; }

  /* Footer */
  footer { padding: 1.5rem 1rem; }
}

/* ═══════════════════════════════════════════════════════
   Rediseño v11 — paleta azul, iconos de librería, hero
   ═══════════════════════════════════════════════════════ */

/* Iconos SVG de la librería del Instituto */
.ico { width:1.3em; height:1.3em; display:inline-block; vertical-align:-0.22em; flex-shrink:0; }

/* Hero de bienvenida (dashboard estudiante) */
.hero-welcome {
  background: var(--azul-pale);
  border-radius: var(--radius-lg);
  padding: 2.1rem 2.3rem;
  display: flex; align-items: center; gap: 2rem;
  margin-bottom: 1.5rem;
  position: relative; overflow: hidden;
}
.hero-welcome .hero-text { flex:1; min-width:0; position:relative; z-index:2; }
.hero-welcome .hero-eyebrow {
  font-size:0.72rem; letter-spacing:0.15em; text-transform:uppercase;
  color: var(--azul-deep); font-weight:700; margin-bottom:0.5rem;
}
.hero-welcome h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.5rem); font-weight:400;
  color: var(--navy); line-height:1.15; margin:0 0 0.85rem; letter-spacing:-0.01em;
}
.hero-welcome .hero-verse { font-family:'IM Fell English',Georgia,serif; font-size:0.95rem; color:var(--text-soft); line-height:1.6; max-width:470px; margin:0 0 1.5rem; }
.hero-verse cite { display:block; font-style:normal; font-weight:600; color:var(--azul-deep); font-size:0.82rem; margin-top:0.4rem; }
.hero-actions { display:flex; gap:0.75rem; flex-wrap:wrap; }
.hero-figure { position:relative; flex-shrink:0; width:230px; height:215px; }
.hero-img {
  position:absolute; top:24px; left:18px;
  width:185px; height:185px; border-radius:50%; object-fit:cover;
  border:3px solid #fff;
  box-shadow:0 8px 30px rgba(0,10,35,0.18);
  z-index:2;
}
/* formas decorativas alrededor de la foto */
.hero-figure::before {            /* círculo azul arriba-izquierda */
  content:''; position:absolute; top:0; left:0;
  width:46px; height:46px; border-radius:50%;
  background:var(--azul); z-index:1;
}
.hero-figure::after {             /* círculo azul arriba-derecha */
  content:''; position:absolute; top:6px; right:0;
  width:38px; height:38px; border-radius:50%;
  background:var(--azul); z-index:1;
}
.hero-dot-gold {                  /* círculo dorado al frente, abajo-izquierda */
  position:absolute; bottom:14px; left:0;
  width:34px; height:34px; border-radius:50%;
  background:var(--gold); z-index:3;
}
.hero-dots {                      /* retícula de puntos a la derecha */
  position:absolute; top:50%; right:-26px; transform:translateY(-50%);
  display:grid; grid-template-columns:repeat(3,6px); gap:7px; z-index:1;
}
.hero-dots i { width:5px; height:5px; border-radius:50%; background:var(--text-muted); display:block; }
@media (max-width:760px){
  .hero-welcome{ flex-direction:column-reverse; text-align:center; align-items:center; padding:1.5rem; }
  .hero-figure{ width:175px; height:165px; }
  .hero-img{ width:140px; height:140px; top:18px; left:14px; }
  .hero-dots{ display:none; }
  .hero-actions{ justify-content:center; }
  .hero-verse{ margin-left:auto; margin-right:auto; }
}

/* Stat cards — fondo blanco, icono sobre cuadro azul claro */
.stat-card {
  background: var(--bg-card); border:1px solid var(--border); border-radius:var(--radius-lg);
  padding:1.4rem 1.5rem; display:flex; align-items:center; gap:1.1rem; box-shadow:var(--shadow);
  transition: box-shadow .2s, transform .2s;
}
.stat-card:hover { box-shadow:var(--shadow-lg); transform:translateY(-2px); }
.stat-icon {
  width:52px; height:52px; background:var(--azul-pale); color:var(--azul-deep);
  border-radius:var(--radius); display:flex; align-items:center; justify-content:center; flex-shrink:0;
}
.stat-icon.gold { background:var(--gold-pale); color:var(--gold); }
.stat-icon .ico { width:1.6rem; height:1.6rem; vertical-align:0; }
.stat-num   { font-family:var(--font-title); font-size:2rem; font-weight:700; color:var(--navy); line-height:1; }
.stat-label { font-family:var(--font-ui); font-size:0.74rem; font-weight:500; color:var(--text-muted); margin-top:0.25rem; }

/* Iconos dentro del sidebar */
.sidebar-link .ico { width:1.2rem; height:1.2rem; vertical-align:-0.2em; margin-right:0.1rem; color:var(--azul-deep); }
.sidebar-link.active .ico { color:var(--navy); }

/* Barra de progreso en azul */
.progress-bar { background: var(--azul-deep) !important; }