/* ============================================================
   SIMULACROS PRO — Estilos principales
   Fuentes: Outfit + Playfair Display
   Paleta: Azul marino profundo + dorado + blanco
   ============================================================ */

:root {
  --navy: #0a1628;
  --navy-2: #0f2044;
  --blue: #1e3a8a;
  --blue-light: #2563eb;
  --gold: #f59e0b;
  --gold-light: #fcd34d;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-500: #64748b;
  --gray-700: #334155;
  --gray-900: #0f172a;
  --green: #059669;
  --red: #dc2626;
  --purple: #7c3aed;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(10,22,40,.12);
  --shadow-lg: 0 8px 48px rgba(10,22,40,.20);
  --transition: all .25s cubic-bezier(.4,0,.2,1);
  --font-body: 'Outfit', sans-serif;
  --font-display: 'Playfair Display', serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--gray-50);
  color: var(--gray-900);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

/* ============================================================
   NAVBAR
   ============================================================ */
.sp-navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10,22,40,.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: var(--transition);
}
.sp-navbar.scrolled {
  background: rgba(10,22,40,.98);
  box-shadow: 0 2px 32px rgba(0,0,0,.3);
}
.sp-nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.sp-nav-spacer { height: 68px; }

.sp-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--white);
  white-space: nowrap;
}
.sp-logo-icon { font-size: 1.5rem; }
.sp-logo-text span { color: var(--gold); }

.sp-nav-links {
  display: flex;
  list-style: none;
  gap: 4px;
  flex: 1;
}
.sp-nav-links a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 8px;
  color: rgba(255,255,255,.75);
  font-size: .9rem;
  font-weight: 500;
  transition: var(--transition);
}
.sp-nav-links a:hover,
.sp-nav-links a.active {
  color: var(--white);
  background: rgba(255,255,255,.1);
}

.sp-nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

/* Botones navbar */
.sp-btn-outline {
  padding: 8px 20px;
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 8px;
  color: var(--white);
  font-size: .88rem;
  font-weight: 500;
  transition: var(--transition);
}
.sp-btn-outline:hover { border-color: var(--gold); color: var(--gold); }

.sp-btn-primary {
  padding: 9px 22px;
  background: var(--gold);
  color: var(--navy);
  border-radius: 8px;
  font-size: .88rem;
  font-weight: 700;
  transition: var(--transition);
}
.sp-btn-primary:hover { background: var(--gold-light); transform: translateY(-1px); }

/* User menu */
.sp-user-menu { position: relative; }
.sp-user-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 8px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: .88rem;
  cursor: pointer;
  transition: var(--transition);
}
.sp-user-btn:hover { background: rgba(255,255,255,.15); }
.sp-user-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 190px;
  padding: 16px 8px 8px;
  border: 1px solid var(--gray-200);
  margin-top: 0;
}
.sp-user-dropdown::before {
  content: '';
  position: absolute;
  top: -10px;
  left: 0;
  right: 0;
  height: 10px;
}
.sp-user-menu:hover .sp-user-dropdown { display: block; }
.sp-user-menu:focus-within .sp-user-dropdown { display: block; }
.sp-user-dropdown a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 8px;
  color: var(--gray-700);
  font-size: .9rem;
  transition: var(--transition);
}
.sp-user-dropdown a:hover { background: var(--gray-100); }
.sp-user-dropdown hr { border: none; border-top: 1px solid var(--gray-200); margin: 6px 0; }
.sp-user-dropdown .text-danger { color: var(--red) !important; }
.sp-hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.sp-hero {
  background: var(--navy);
  position: relative;
  overflow: hidden;
  padding: 100px 24px 80px;
  text-align: center;
}
.sp-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,.3) 0%, transparent 70%);
  animation: pulse 6s ease-in-out infinite;
}
.sp-hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(245,158,11,.2) 0%, transparent 70%);
  animation: pulse 8s ease-in-out infinite reverse;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: .7; }
  50% { transform: scale(1.1); opacity: 1; }
}
.sp-hero-content { position: relative; z-index: 1; max-width: 800px; margin: 0 auto; }
.sp-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(245,158,11,.15);
  border: 1px solid rgba(245,158,11,.3);
  border-radius: 50px;
  color: var(--gold);
  font-size: .85rem;
  font-weight: 600;
  margin-bottom: 24px;
  animation: fadeInDown .6s ease;
}

.sp-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 20px;
  animation: fadeInUp .7s ease;
}
.sp-hero h1 span { color: var(--gold); }
.sp-hero p {
  font-size: 1.2rem;
  color: rgba(255,255,255,.75);
  margin-bottom: 40px;
  animation: fadeInUp .8s ease;
}
.sp-hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp .9s ease;
}
.sp-hero-actions .btn-hero-primary {
  padding: 16px 36px;
  background: var(--gold);
  color: var(--navy);
  border-radius: 50px;
  font-size: 1.05rem;
  font-weight: 700;
  transition: var(--transition);
  box-shadow: 0 8px 32px rgba(245,158,11,.4);
}
.sp-hero-actions .btn-hero-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(245,158,11,.5);
}
.sp-hero-actions .btn-hero-outline {
  padding: 16px 36px;
  border: 2px solid rgba(255,255,255,.3);
  border-radius: 50px;
  color: var(--white);
  font-size: 1.05rem;
  font-weight: 600;
  transition: var(--transition);
}
.sp-hero-actions .btn-hero-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,.1);
}

.sp-hero-stats {
  display: flex;
  gap: 48px;
  justify-content: center;
  margin-top: 60px;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease;
}
.sp-stat {
  text-align: center;
  color: var(--white);
}
.sp-stat-number {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--gold);
  display: block;
}
.sp-stat-label {
  font-size: .85rem;
  color: rgba(255,255,255,.6);
}

/* ============================================================
   SECTIONS COMUNES
   ============================================================ */
.sp-section {
  padding: 80px 24px;
  max-width: 1280px;
  margin: 0 auto;
}
.sp-section-header {
  text-align: center;
  margin-bottom: 56px;
}
.sp-section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(37,99,235,.1);
  color: var(--blue-light);
  border-radius: 50px;
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .05em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.sp-section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
}
.sp-section-header p {
  font-size: 1.05rem;
  color: var(--gray-500);
  max-width: 560px;
  margin: 0 auto;
}

/* ============================================================
   CARDS DE ÁREA
   ============================================================ */
.sp-areas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}
.sp-area-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 20px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 2px solid transparent;
  transition: var(--transition);
  cursor: pointer;
}
.sp-area-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-light);
}
.sp-area-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 16px;
}
.sp-area-card h3 {
  font-weight: 600;
  font-size: 1rem;
  color: var(--gray-900);
}
.sp-area-card p {
  font-size: .85rem;
  color: var(--gray-500);
  margin-top: 6px;
}

/* ============================================================
   PLANES
   ============================================================ */
.sp-planes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  align-items: start;
}
.sp-plan-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  box-shadow: var(--shadow);
  border: 2px solid var(--gray-200);
  transition: var(--transition);
  position: relative;
}
.sp-plan-card.featured {
  border-color: var(--gold);
  transform: scale(1.04);
  box-shadow: 0 8px 48px rgba(245,158,11,.2);
}
.sp-plan-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gold);
  color: var(--navy);
  padding: 4px 18px;
  border-radius: 50px;
  font-size: .8rem;
  font-weight: 700;
}
.sp-plan-name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
}
.sp-plan-price {
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--blue-light);
  line-height: 1;
}
.sp-plan-price span { font-size: 1rem; font-weight: 500; color: var(--gray-500); }
.sp-plan-desc { font-size: .9rem; color: var(--gray-500); margin: 12px 0 24px; }
.sp-plan-features {
  list-style: none;
  margin-bottom: 28px;
}
.sp-plan-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: .92rem;
  border-bottom: 1px solid var(--gray-100);
}
.sp-plan-features li:last-child { border-bottom: none; }
.sp-plan-features i.bi-check-circle-fill { color: var(--green); }
.sp-plan-features i.bi-x-circle-fill { color: var(--gray-200); }
.sp-plan-btn {
  display: block;
  width: 100%;
  padding: 14px;
  border-radius: 10px;
  text-align: center;
  font-weight: 700;
  font-size: 1rem;
  transition: var(--transition);
}
.sp-plan-btn.primary { background: var(--gold); color: var(--navy); }
.sp-plan-btn.primary:hover { background: var(--gold-light); }
.sp-plan-btn.outline { border: 2px solid var(--blue-light); color: var(--blue-light); }
.sp-plan-btn.outline:hover { background: var(--blue-light); color: var(--white); }

/* ============================================================
   SIMULACRO CARDS
   ============================================================ */
.sp-sim-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.sp-sim-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.sp-sim-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.sp-sim-header {
  padding: 24px;
  background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 100%);
  color: var(--white);
  position: relative;
}
.sp-sim-type {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(255,255,255,.2);
  border-radius: 50px;
  font-size: .75rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.sp-sim-header h3 { font-weight: 600; font-size: 1.1rem; }
.sp-sim-meta {
  display: flex;
  gap: 16px;
  margin-top: 14px;
  font-size: .82rem;
  color: rgba(255,255,255,.75);
}
.sp-sim-meta span { display: flex; align-items: center; gap: 5px; }
.sp-sim-body { padding: 20px 24px 24px; }
.sp-plan-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: .8rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.sp-plan-tag.free { background: #dcfce7; color: #166534; }
.sp-plan-tag.basico { background: #dbeafe; color: #1e40af; }
.sp-plan-tag.premium { background: #fef3c7; color: #92400e; }
.sp-sim-btn {
  display: block;
  width: 100%;
  padding: 12px;
  background: var(--blue-light);
  color: var(--white);
  border-radius: 8px;
  text-align: center;
  font-weight: 600;
  transition: var(--transition);
}
.sp-sim-btn:hover { background: var(--blue); }
.sp-sim-btn.locked {
  background: var(--gray-200);
  color: var(--gray-500);
  cursor: not-allowed;
}

/* ============================================================
   TEMPORIZADOR DEL SIMULACRO
   ============================================================ */
.sp-timer-bar {
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  z-index: 900;
  background: var(--navy);
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 16px rgba(0,0,0,.2);
}
.sp-timer-display {
  font-family: 'Courier New', monospace;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: .15em;
}
.sp-timer-display.warning { color: var(--gold); }
.sp-timer-display.danger { color: #ef4444; animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: .5; } }
.sp-timer-info { font-size: .85rem; color: rgba(255,255,255,.6); }
.sp-timer-progress-bar {
  position: absolute;
  bottom: 0; left: 0;
  height: 3px;
  background: var(--gold);
  transition: width 1s linear;
}

/* ============================================================
   PREGUNTA DE SIMULACRO
   ============================================================ */
.sp-exam-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 28px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 24px;
}
.sp-question-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow);
}
.sp-q-number {
  font-size: .85rem;
  color: var(--gray-500);
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.sp-q-text {
  font-size: 1.05rem;
  color: var(--gray-900);
  line-height: 1.7;
  margin-bottom: 28px;
}
.sp-options { display: flex; flex-direction: column; gap: 12px; }
.sp-option {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 20px;
  border: 2px solid var(--gray-200);
  border-radius: 10px;
  cursor: pointer;
  transition: var(--transition);
  background: var(--white);
  text-align: left;
  font-family: var(--font-body);
  font-size: .95rem;
  color: var(--gray-900);
}
.sp-option:hover { border-color: var(--blue-light); background: #eff6ff; }
.sp-option.selected { border-color: var(--blue-light); background: #eff6ff; }
.sp-option.correct { border-color: var(--green); background: #ecfdf5; }
.sp-option.wrong { border-color: var(--red); background: #fef2f2; }
.sp-option-letter {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .9rem;
  flex-shrink: 0;
}
.sp-option.selected .sp-option-letter { background: var(--blue-light); color: var(--white); }

.sp-exam-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 28px;
  gap: 12px;
}
.sp-exam-btn {
  padding: 12px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: .95rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-body);
}
.sp-exam-btn.primary { background: var(--blue-light); color: var(--white); }
.sp-exam-btn.primary:hover { background: var(--blue); }
.sp-exam-btn.secondary { background: var(--gray-100); color: var(--gray-700); }
.sp-exam-btn.secondary:hover { background: var(--gray-200); }
.sp-exam-btn.danger { background: var(--red); color: var(--white); }

/* Panel lateral del examen */
.sp-exam-sidebar { display: flex; flex-direction: column; gap: 16px; }
.sp-sidebar-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.sp-sidebar-card h4 {
  font-size: .85rem;
  font-weight: 700;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: 14px;
}
.sp-q-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
}
.sp-q-dot {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 6px;
  border: 2px solid var(--gray-200);
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .72rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  color: var(--gray-500);
}
.sp-q-dot.answered { background: var(--blue-light); border-color: var(--blue-light); color: var(--white); }
.sp-q-dot.current { border-color: var(--gold); color: var(--gold); }

/* ============================================================
   RESULTADOS
   ============================================================ */
.sp-result-hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 100%);
  color: var(--white);
  padding: 60px 24px;
  text-align: center;
}
.sp-score-circle {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  border: 4px solid var(--gold);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  box-shadow: 0 0 40px rgba(245,158,11,.3);
}
.sp-score-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
}
.sp-score-label { font-size: .85rem; color: rgba(255,255,255,.7); }
.sp-result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin-top: 32px;
}
.sp-result-stat {
  background: rgba(255,255,255,.1);
  border-radius: 12px;
  padding: 18px;
  text-align: center;
}
.sp-result-stat strong { display: block; font-size: 1.6rem; font-weight: 800; }
.sp-result-stat span { font-size: .8rem; color: rgba(255,255,255,.7); }

/* ============================================================
   DASHBOARD ESTUDIANTE
   ============================================================ */
.sp-dashboard {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: calc(100vh - 68px);
}
.sp-sidebar {
  background: var(--navy);
  padding: 28px 0;
  position: sticky;
  top: 68px;
  height: calc(100vh - 68px);
  overflow-y: auto;
}
.sp-sidebar-nav { list-style: none; }
.sp-sidebar-nav li a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 24px;
  color: rgba(255,255,255,.65);
  font-size: .92rem;
  font-weight: 500;
  transition: var(--transition);
}
.sp-sidebar-nav li a:hover,
.sp-sidebar-nav li a.active {
  color: var(--white);
  background: rgba(255,255,255,.08);
  border-left: 3px solid var(--gold);
}
.sp-sidebar-section {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: rgba(255,255,255,.3);
  padding: 20px 24px 8px;
}
.sp-dash-content { padding: 32px; background: var(--gray-50); }
.sp-dash-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}
.sp-dash-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--navy);
}
.sp-stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}
.sp-stat-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 16px;
}
.sp-stat-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.sp-stat-card .label { font-size: .82rem; color: var(--gray-500); font-weight: 500; }
.sp-stat-card .value { font-size: 1.6rem; font-weight: 800; color: var(--navy); }

/* ============================================================
   ADMIN
   ============================================================ */
.sp-admin { display: grid; grid-template-columns: 240px 1fr; min-height: calc(100vh - 68px); }
.sp-admin-sidebar { background: var(--gray-900); }
.sp-admin-content { padding: 32px; }
.sp-admin-table {
  width: 100%;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.sp-admin-table th {
  background: var(--gray-50);
  padding: 14px 18px;
  text-align: left;
  font-size: .82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--gray-500);
  border-bottom: 1px solid var(--gray-200);
}
.sp-admin-table td {
  padding: 14px 18px;
  font-size: .92rem;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
}
.sp-admin-table tr:last-child td { border-bottom: none; }
.sp-admin-table tr:hover td { background: var(--gray-50); }

/* Badges de plan */
.badge-free { background: #dcfce7; color: #166534; padding: 3px 10px; border-radius: 50px; font-size: .78rem; font-weight: 600; }
.badge-basico { background: #dbeafe; color: #1e40af; padding: 3px 10px; border-radius: 50px; font-size: .78rem; font-weight: 600; }
.badge-premium { background: #fef3c7; color: #92400e; padding: 3px 10px; border-radius: 50px; font-size: .78rem; font-weight: 600; }

/* ============================================================
   FORMULARIOS
   ============================================================ */
.sp-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 36px;
}
.sp-form-group { margin-bottom: 20px; }
.sp-form-group label {
  display: block;
  font-size: .88rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}
.sp-form-group input,
.sp-form-group select,
.sp-form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--gray-200);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: .95rem;
  color: var(--gray-900);
  transition: var(--transition);
  background: var(--white);
}
.sp-form-group input:focus,
.sp-form-group select:focus,
.sp-form-group textarea:focus {
  outline: none;
  border-color: var(--blue-light);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}
.sp-form-group textarea { min-height: 120px; resize: vertical; }
.sp-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: .95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.sp-btn-blue { background: var(--blue-light); color: var(--white); }
.sp-btn-blue:hover { background: var(--blue); }
.sp-btn-gold { background: var(--gold); color: var(--navy); }
.sp-btn-gold:hover { background: var(--gold-light); }
.sp-btn-red { background: var(--red); color: var(--white); }
.sp-btn-gray { background: var(--gray-200); color: var(--gray-700); }
.sp-btn-block { display: flex; width: 100%; justify-content: center; }

/* Alertas */
.sp-alert {
  padding: 14px 18px;
  border-radius: 8px;
  font-size: .92rem;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.sp-alert-success { background: #ecfdf5; color: #166534; border: 1px solid #86efac; }
.sp-alert-error { background: #fef2f2; color: #991b1b; border: 1px solid #fca5a5; }
.sp-alert-info { background: #eff6ff; color: #1e40af; border: 1px solid #93c5fd; }

/* ============================================================
   FOOTER
   ============================================================ */
.sp-footer {
  background: var(--navy);
  color: rgba(255,255,255,.75);
  margin-top: 80px;
}
.sp-footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 60px 24px 40px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.sp-footer-brand p {
  font-size: .9rem;
  line-height: 1.7;
  margin-top: 16px;
  color: rgba(255,255,255,.5);
}
.sp-social-links {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}
.sp-social-links a {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: rgba(255,255,255,.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.6);
  font-size: 1.1rem;
  transition: var(--transition);
}
.sp-social-links a:hover { background: var(--gold); color: var(--navy); }
.sp-footer-links h4 {
  font-size: .88rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--white);
  margin-bottom: 16px;
}
.sp-footer-links ul { list-style: none; }
.sp-footer-links li { margin-bottom: 10px; }
.sp-footer-links a {
  font-size: .88rem;
  color: rgba(255,255,255,.5);
  transition: var(--transition);
}
.sp-footer-links a:hover { color: var(--gold); }
.sp-footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 24px;
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .82rem;
  color: rgba(255,255,255,.3);
  flex-wrap: wrap;
  gap: 8px;
}

/* ============================================================
   ANIMACIONES
   ============================================================ */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .sp-footer-inner { grid-template-columns: 1fr 1fr; }
  .sp-exam-layout { grid-template-columns: 1fr; }
  .sp-dashboard { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  /* Ocultar nav links y botones de acción en desktop */
  .sp-nav-links { display: none; }
  .sp-nav-actions .sp-btn-outline,
  .sp-nav-actions .sp-btn-primary,
  .sp-nav-actions .sp-user-menu { display: none; }

  /* Mostrar hamburger */
  .sp-hamburger { display: block; }

  /* Menú móvil abierto */
  .sp-nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 68px; left: 0; right: 0; bottom: 0;
    background: var(--navy);
    padding: 12px 0;
    overflow-y: auto;
    z-index: 999;
    border-top: 1px solid rgba(255,255,255,.1);
  }
  .sp-nav-links.open a {
    padding: 14px 24px;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255,255,255,.06);
    border-radius: 0;
  }
  .sp-nav-links.open a:hover,
  .sp-nav-links.open a.active {
    background: rgba(255,255,255,.08);
    border-radius: 0;
    padding-left: 28px;
  }

  /* Botones de sesión dentro del menú móvil */
  .sp-nav-links.open .mobile-auth {
    display: flex !important;
    flex-direction: column;
    gap: 10px;
    padding: 16px 20px;
    margin-top: 8px;
    border-top: 1px solid rgba(255,255,255,.1);
  }
  .sp-nav-links.open .mobile-auth a {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 13px 20px;
    border-radius: 10px;
    font-weight: 700;
    font-size: .95rem;
    border-bottom: none;
    text-align: center;
  }
  .sp-nav-links.open .mobile-auth .btn-login {
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.25);
    color: #fff;
  }
  .sp-nav-links.open .mobile-auth .btn-register {
    background: var(--gold);
    color: var(--navy);
  }
  /* Info usuario logueado en móvil */
  .sp-nav-links.open .mobile-user-info {
    display: flex !important;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    margin-top: 8px;
    border-top: 1px solid rgba(255,255,255,.1);
    background: rgba(255,255,255,.05);
  }
  .sp-nav-links.open .mobile-user-info .avatar {
    width: 36px; height: 36px; border-radius: 50%;
    background: var(--gold); color: var(--navy);
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: .9rem; flex-shrink: 0;
  }
  .sp-nav-links.open .mobile-user-info .uname {
    color: #fff; font-weight: 700; font-size: .9rem;
  }
  .sp-nav-links.open .mobile-logout {
    display: flex !important;
    padding: 12px 20px;
  }
  .sp-nav-links.open .mobile-logout a {
    color: rgba(255,100,100,.8) !important;
    border-bottom: none;
    padding: 10px 16px;
    background: rgba(255,50,50,.08);
    border-radius: 8px;
    width: 100%;
    justify-content: center;
  }

  .sp-footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .sp-plan-card.featured { transform: none; }
  .sp-hero-stats { gap: 24px; }
}
@media (max-width: 480px) {
  .sp-hero { padding: 60px 16px 48px; }
  .sp-hero-actions .btn-hero-primary,
  .sp-hero-actions .btn-hero-outline { padding: 14px 24px; font-size: .95rem; }
  .sp-section { padding: 56px 16px; }
}