/* ============================================================
   PSYCADEMI — Sistema de diseño
   Dark theme + acentos violeta
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg:          #09090f;
  --bg-2:        #10101a;
  --bg-3:        #161622;
  --card:        #1c1c2e;
  --card-hover:  #22223a;
  --border:      #2a2a42;
  --border-light:#35355a;

  --accent:      #8b5cf6;
  --accent-mid:  #7c3aed;
  --accent-dark: #6d28d9;
  --accent-glow: rgba(139, 92, 246, 0.18);
  --accent-text: #a78bfa;

  --text:        #f1f0f9;
  --text-2:      #b8b4d8;
  --text-muted:  #6e6a8e;

  --success:     #22c55e;
  --warning:     #f59e0b;
  --error:       #ef4444;

  --radius-sm:   6px;
  --radius:      12px;
  --radius-lg:   20px;
  --radius-xl:   28px;

  --shadow:      0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg:   0 8px 48px rgba(0,0,0,0.6);
  --shadow-accent: 0 8px 32px rgba(139, 92, 246, 0.25);

  --transition:  all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

img { max-width: 100%; display: block; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; }
input, textarea, select { font-family: inherit; }

/* ── Utilidades ────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 16px;
}
.section-label::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text);
}

.section-subtitle {
  font-size: 17px;
  color: var(--text-2);
  margin-top: 12px;
  max-width: 520px;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.tag-violet  { background: rgba(139,92,246,0.15); color: var(--accent-text); border: 1px solid rgba(139,92,246,0.3); }
.tag-green   { background: rgba(34,197,94,0.12);  color: #4ade80;            border: 1px solid rgba(34,197,94,0.25); }
.tag-amber   { background: rgba(245,158,11,0.12); color: #fbbf24;            border: 1px solid rgba(245,158,11,0.25); }

/* ── Botones ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: var(--shadow-accent);
}
.btn-primary:hover {
  background: var(--accent-mid);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(139,92,246,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border-light);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent-text);
  background: var(--accent-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--accent-text);
  padding: 10px 16px;
}
.btn-ghost:hover { background: var(--accent-glow); }

.btn-lg { padding: 18px 36px; font-size: 16px; border-radius: var(--radius-lg); }
.btn-sm { padding: 10px 20px; font-size: 13px; }

.btn-full { width: 100%; }

/* ── Navbar ────────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(9, 9, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}
.navbar.scrolled { border-bottom-color: var(--border); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo img { height: 36px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  transition: var(--transition);
}
.nav-link:hover { color: var(--text); background: var(--bg-3); }

.nav-cta { margin-left: 8px; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 16px 24px 24px;
  border-top: 1px solid var(--border);
  background: var(--bg-2);
}
.mobile-menu.open { display: flex; }
.mobile-menu .nav-link { padding: 12px 16px; font-size: 15px; }
.mobile-menu .btn { margin-top: 8px; }

/* ── Hero ──────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 72px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-bg-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
}
.blob-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, #7c3aed 0%, transparent 70%);
  top: -100px; right: -150px;
}
.blob-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #4f46e5 0%, transparent 70%);
  bottom: 50px; left: -100px;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(139,92,246,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139,92,246,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 64px;
  padding: 80px 0;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(139,92,246,0.1);
  border: 1px solid rgba(139,92,246,0.25);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent-text);
  margin-bottom: 24px;
}
.hero-eyebrow-dot {
  width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(38px, 5.5vw, 68px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 24px;
}
.hero-title span {
  background: linear-gradient(135deg, var(--accent-text) 0%, #c4b5fd 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 18px;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.hero-stat-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}
.hero-stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card-stack {
  position: relative;
  width: 340px;
  height: 420px;
}

.hero-card {
  position: absolute;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
}
.hero-card-main {
  width: 300px;
  top: 40px; left: 20px;
  z-index: 2;
}
.hero-card-back {
  width: 280px;
  top: 10px; left: 40px;
  z-index: 1;
  opacity: 0.6;
  transform: rotate(3deg);
}

.hero-card-type {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 12px;
}
.hero-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 20px;
}
.hero-card-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.hero-card-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-2);
}
.hero-card-meta-icon {
  width: 28px; height: 28px;
  background: var(--accent-glow);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}
.hero-card-divider {
  height: 1px;
  background: var(--border);
  margin: 16px 0;
}
.hero-card-price {
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}
.hero-card-cta {
  margin-top: 16px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 20px;
  font-size: 13px;
  font-weight: 600;
  width: 100%;
  display: block;
  text-align: center;
  transition: var(--transition);
}
.hero-card-cta:hover {
  background: var(--accent-mid);
}

/* ── Features strip ────────────────────────────────────────── */
.features-strip {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 48px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.feature-icon {
  width: 48px; height: 48px;
  background: var(--accent-glow);
  border: 1px solid rgba(139,92,246,0.2);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.feature-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.feature-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── Catálogo de cursos ─────────────────────────────────────── */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.course-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  cursor: pointer;
}
.course-card:hover {
  border-color: rgba(139,92,246,0.4);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(139,92,246,0.15);
}

.course-card-image {
  height: 180px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-3) 0%, #1a1a32 100%);
}
.course-card-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.course-card:hover .course-card-image img { transform: scale(1.05); }

.course-card-image-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 48px;
  background: linear-gradient(135deg, #1e1b3a 0%, #2d1f5e 50%, #1a1b3e 100%);
}

.course-card-badge {
  position: absolute;
  top: 12px; left: 12px;
}

.course-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.course-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
  margin-bottom: 12px;
}

.course-card-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}
.course-card-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-2);
}
.course-card-meta-item svg,
.course-card-meta-item span:first-child { flex-shrink: 0; }

.course-card-divider {
  height: 1px;
  background: var(--border);
  margin: auto 0 20px;
}

.course-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.course-card-price {
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}
.course-card-price-label {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 400;
}

.no-courses {
  grid-column: 1/-1;
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 16px;
}

/* Cards de cursos realizados */
.course-card-done {
  opacity: 0.65;
  filter: grayscale(30%);
}
.course-card-done:hover {
  opacity: 0.85;
  filter: grayscale(0%);
}
.tag-done {
  background: rgba(113,113,122,0.15);
  color: #a1a1aa;
  border: 1px solid rgba(113,113,122,0.25);
}

/* ── Por qué elegirnos ─────────────────────────────────────── */
.why-section { background: var(--bg-2); }

.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.why-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 40px;
}

.why-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.why-number {
  font-size: 28px;
  font-weight: 800;
  color: #c9a84c;
  letter-spacing: -0.02em;
  flex-shrink: 0;
  min-width: 36px;
}

.why-item-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.why-item-desc {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
}

.why-video-wrap {
  margin-top: 32px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.why-video-wrap video {
  width: 100%;
  display: block;
}

.why-visual {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.why-visual-stat {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.why-stat-icon {
  font-size: 28px;
  width: 52px; height: 52px;
  background: var(--accent-glow);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
}
.why-stat-number {
  font-size: 28px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}
.why-stat-label {
  font-size: 13px;
  color: var(--text-muted);
}

/* ── Testimonios ───────────────────────────────────────────── */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.testimonial-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.testimonial-stars {
  color: var(--warning);
  font-size: 15px;
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.75;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
}
.testimonial-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #4f46e5);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
}
.testimonial-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}
.testimonial-role {
  font-size: 12px;
  color: var(--text-muted);
}

/* ── Footer ────────────────────────────────────────────────── */
.footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 64px;
  margin-bottom: 48px;
}

.footer-logo img { height: 32px; margin-bottom: 16px; }
.footer-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 280px;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}
.footer-social a {
  width: 36px; height: 36px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  transition: var(--transition);
}
.footer-social a:hover {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.footer-heading {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text);
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-link {
  font-size: 14px;
  color: var(--text-muted);
  transition: var(--transition);
}
.footer-link:hover { color: var(--accent-text); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
}

/* ── Página individual de curso ─────────────────────────────── */
.course-hero {
  padding-top: 72px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.course-hero::before {
  content: '';
  position: absolute;
  top: -100px; right: -200px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(139,92,246,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.course-hero-inner {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: start;
  padding: 64px 0;
}

.course-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.course-breadcrumb a { color: var(--accent-text); }
.course-breadcrumb a:hover { text-decoration: underline; }

.course-type-badge {
  margin-bottom: 16px;
}

.course-hero-title {
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 16px;
}

.course-hero-subtitle {
  font-size: 17px;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 28px;
  font-style: italic;
}

.course-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}
.course-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 13px;
  color: var(--text-2);
}

.course-docente-preview {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.docente-avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  object-fit: cover;
  background: linear-gradient(135deg, var(--accent), #4f46e5);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
  overflow: hidden;
}
.docente-avatar img { width: 100%; height: 100%; object-fit: cover; }
.docente-name { font-size: 14px; font-weight: 700; color: var(--text); }
.docente-title { font-size: 12px; color: var(--text-muted); }

/* Tarjeta lateral de inscripción */
.inscription-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px;
  position: sticky;
  top: 88px;
  box-shadow: var(--shadow-lg);
}

.inscription-price {
  font-size: 36px;
  font-weight: 900;
  color: var(--text);
  letter-spacing: -0.03em;
  margin-bottom: 4px;
}
.inscription-price-note {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.inscription-installments {
  font-size: 13px;
  color: var(--success);
  font-weight: 600;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.inscription-divider {
  height: 1px;
  background: var(--border);
  margin: 20px 0;
}

.inscription-includes {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}
.inscription-include-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-2);
}
.check-icon { color: var(--success); font-size: 15px; }

/* ── Formulario de inscripción ──────────────────────────────── */
.inscription-form { margin-top: 0; }

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
}

.form-input {
  background: var(--bg-3);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 14px;
  color: var(--text);
  transition: var(--transition);
  outline: none;
  width: 100%;
}
.form-input::placeholder { color: var(--text-muted); }
.form-input:focus {
  border-color: var(--accent);
  background: var(--bg);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-input.error { border-color: var(--error); }

.form-error {
  font-size: 12px;
  color: var(--error);
  display: none;
}
.form-error.visible { display: block; }

.form-submit-btn {
  width: 100%;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius);
  padding: 15px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 4px;
}
.form-submit-btn:hover {
  background: var(--accent-mid);
  transform: translateY(-1px);
  box-shadow: var(--shadow-accent);
}
.form-submit-btn:active { transform: translateY(0); }
.form-submit-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.payment-alt {
  margin-top: 16px;
  padding: 14px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
}
.payment-alt strong {
  display: block;
  color: var(--text-2);
  margin-bottom: 4px;
  font-size: 13px;
}
.cbu-number {
  font-family: monospace;
  font-size: 11px;
  background: var(--bg);
  padding: 4px 8px;
  border-radius: 4px;
  margin-top: 4px;
  display: inline-block;
  color: var(--accent-text);
  user-select: all;
  cursor: text;
}

/* ── Contenido del curso ────────────────────────────────────── */
.course-content { padding: 64px 0; }

.course-content-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: start;
}

.course-section-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

/* Programa */
.programa-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 48px;
}

.programa-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.programa-item:hover { border-color: rgba(139,92,246,0.3); }

.programa-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
}

.programa-number {
  width: 32px; height: 32px;
  background: var(--accent-glow);
  border: 1px solid rgba(139,92,246,0.25);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-text);
  flex-shrink: 0;
}

.programa-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  flex: 1;
}

.programa-arrow {
  color: var(--text-muted);
  font-size: 12px;
  transition: transform 0.22s ease;
  flex-shrink: 0;
}
.programa-item.open .programa-arrow { transform: rotate(180deg); }

.programa-body {
  display: none;
  padding: 0 20px 18px 68px;
}
.programa-item.open .programa-body { display: block; }

.programa-body ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.programa-body ul li {
  font-size: 14px;
  color: var(--text-2);
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.5;
}
.programa-body ul li::before {
  content: '›';
  color: var(--accent-text);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* Docente */
.docente-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 48px;
}

.docente-card-header {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 20px;
}

.docente-card-avatar {
  width: 72px; height: 72px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--accent), #4f46e5);
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  font-weight: 700;
  color: white;
  border: 3px solid rgba(139,92,246,0.3);
}
.docente-card-avatar img { width: 100%; height: 100%; object-fit: cover; }

.docente-card-name {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 4px;
}
.docente-card-degree {
  font-size: 14px;
  color: var(--accent-text);
  font-weight: 500;
}

.docente-curriculum {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.docente-curriculum li {
  font-size: 14px;
  color: var(--text-2);
  display: flex;
  gap: 8px;
  align-items: flex-start;
  line-height: 1.5;
}
.docente-curriculum li::before {
  content: '✦';
  color: var(--accent);
  font-size: 10px;
  margin-top: 4px;
  flex-shrink: 0;
}

/* Sidebar del contenido (repetir tarjeta de inscripción) */
.content-sidebar {
  position: sticky;
  top: 88px;
}

/* ── Toast / Notificaciones ─────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 24px;
  font-size: 14px;
  color: var(--text);
  box-shadow: var(--shadow-lg);
  z-index: 999;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 380px;
  text-align: center;
}
.toast.show { transform: translateX(-50%) translateY(0); }
.toast-success { border-color: rgba(34,197,94,0.4); }
.toast-error   { border-color: rgba(239,68,68,0.4); }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-content        { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual         { display: none; }
  .features-grid       { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .why-grid            { grid-template-columns: 1fr; gap: 48px; }
  .courses-grid        { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid   { grid-template-columns: repeat(2, 1fr); }
  .footer-grid         { grid-template-columns: 1fr 1fr; gap: 40px; }
  .course-hero-inner   { grid-template-columns: 1fr; }
  .inscription-card    { position: static; }
  .course-content-grid { grid-template-columns: 1fr; }
  .content-sidebar     { position: static; }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger           { display: flex; }
  .section             { padding: 64px 0; }
  .hero-title          { font-size: 36px; }
  .hero-stats          { gap: 20px; flex-wrap: wrap; }
  .hero-actions        { flex-direction: column; }
  .hero-actions .btn   { width: 100%; justify-content: center; }
  .hero-stats          { justify-content: center; }
  .hero-stat-value,
  .hero-stat-label     { text-align: center; }
  .features-grid       { grid-template-columns: 1fr 1fr; gap: 20px; }
  .courses-grid        { grid-template-columns: 1fr; }
  .testimonials-grid   { grid-template-columns: 1fr; }
  .footer-grid         { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom       { flex-direction: column; gap: 8px; text-align: center; }
  .course-hero-inner   { padding: 40px 0; }
}

@media (max-width: 480px) {
  .features-grid  { grid-template-columns: 1fr; }
  .container      { padding: 0 16px; }
  .hero-stats     { flex-direction: column; gap: 16px; }
}