:root {
  --bg: #f7f8fc;
  --surface: #ffffff;
  --surface-soft: #eef2ff;
  --ink: #0b1026;
  --muted: #5b647a;
  --primary: #7c5cff;
  --primary-dark: #5a3fd6;
  --cyan: #00d1ff;
  --green: #06d6a0;
  --yellow: #ffd166;
  --red: #ff6b6b;
  --border: #dfe4f5;
  --shadow: 0 24px 70px rgba(11, 16, 38, 0.12);
  --shadow-soft: 0 14px 35px rgba(11, 16, 38, 0.08);
  --radius: 26px;
  --radius-sm: 16px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

button,
input,
textarea,
select {
  font: inherit;
}

.container {
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 248, 252, 0.84);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(223, 228, 245, 0.8);
}

.navbar {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: inline-flex;
  align-items: center;
  min-width: 188px;
}

.logo img {
  width: 176px;
  height: auto;
}

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

.nav-link {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 750;
  font-size: 0.95rem;
}

.nav-link:hover,
.nav-link.active {
  color: var(--ink);
  background: var(--surface-soft);
}

.nav-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.mobile-menu {
  display: none;
}

.menu-toggle {
  display: none;
  border: 0;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  margin: 5px auto;
  border-radius: 10px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-open .menu-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-open .menu-toggle span:nth-child(2) {
  opacity: 0;
}

.menu-open .menu-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  box-shadow: 0 16px 30px rgba(124, 92, 255, 0.28);
}

.btn-primary:hover {
  box-shadow: 0 20px 38px rgba(124, 92, 255, 0.34);
}

.btn-secondary {
  color: var(--ink);
  background: var(--surface);
  border-color: var(--border);
}

.btn-secondary:hover {
  background: var(--surface-soft);
}

.btn-dark {
  color: white;
  background: var(--ink);
}

.btn-small {
  min-height: 38px;
  padding: 9px 14px;
  font-size: 0.9rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--primary-dark);
  background: #ebe7ff;
  font-weight: 850;
  font-size: 0.88rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 82px 0 56px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -90px 0 auto auto;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 209, 255, 0.22), transparent 68%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(350px, 0.98fr);
  gap: 54px;
  align-items: center;
}

.hero h1,
.page-hero h1 {
  margin: 18px 0 20px;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.hero p,
.page-hero p {
  max-width: 680px;
  color: var(--muted);
  font-size: 1.16rem;
  margin: 0 0 28px;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.hero-media {
  position: relative;
}

.hero-card {
  overflow: hidden;
  border-radius: 36px;
  box-shadow: var(--shadow);
  background: var(--surface);
  transform: rotate(1deg);
}

.floating-note {
  position: absolute;
  right: -16px;
  bottom: 28px;
  max-width: 240px;
  padding: 18px;
  border-radius: 22px;
  background: var(--surface);
  box-shadow: var(--shadow);
  font-weight: 800;
}

.floating-note small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-weight: 650;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 34px;
}

.stat-card {
  padding: 18px;
  border-radius: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
}

.stat-card strong {
  display: block;
  font-size: 1.5rem;
  line-height: 1;
}

.stat-card span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 650;
}

.section {
  padding: 74px 0;
}

.section-tight {
  padding: 44px 0;
}

.section-header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-end;
  margin-bottom: 34px;
}

.section-header.center {
  display: block;
  text-align: center;
  max-width: 780px;
  margin-inline: auto;
}

.eyebrow {
  color: var(--primary-dark);
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 900;
}

h2 {
  margin: 8px 0 0;
  font-size: clamp(2rem, 4vw, 3.3rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

h3 {
  margin: 0 0 10px;
  font-size: 1.34rem;
  line-height: 1.18;
  letter-spacing: -0.025em;
}

.section-lead {
  max-width: 630px;
  color: var(--muted);
  margin: 12px 0 0;
  font-size: 1.06rem;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.card {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.card p {
  color: var(--muted);
  margin: 0;
}

.icon-pill {
  display: inline-flex;
  width: 52px;
  height: 52px;
  align-items: center;
  justify-content: center;
  border-radius: 18px;
  margin-bottom: 18px;
  background: var(--surface-soft);
  font-size: 1.5rem;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.course-card {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.course-card-media {
  min-height: 150px;
  padding: 24px;
  background: linear-gradient(135deg, #eef2ff, #e7fbff);
  display: flex;
  align-items: center;
  justify-content: center;
}

.course-card-media .course-emoji {
  font-size: 4rem;
}

.course-card-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
}

.course-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.meta-chip {
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.course-card p {
  color: var(--muted);
  margin: 0;
}

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

.price-tag {
  font-weight: 900;
  color: var(--primary-dark);
}

.pathway {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.path-step {
  position: relative;
  padding: 24px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
}

.path-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 15px;
  margin-bottom: 18px;
  color: white;
  background: var(--ink);
  font-weight: 900;
}

.path-step p {
  color: var(--muted);
  margin: 0;
}

.code-demo {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 24px;
  align-items: stretch;
}

.code-panel {
  border-radius: 28px;
  background: #0b1026;
  color: white;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.code-topbar {
  height: 54px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 18px;
  background: #151d3d;
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.dot.red { background: var(--red); }
.dot.yellow { background: var(--yellow); }
.dot.green { background: var(--green); }

pre {
  margin: 0;
  padding: 26px;
  overflow: auto;
}

code {
  font-family: "Fira Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.98rem;
}

.logic-box {
  padding: 26px;
  border-radius: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
}

.logic-box label {
  display: block;
  margin: 16px 0 8px;
  font-weight: 800;
}

.logic-box input,
.logic-box select,
.logic-box textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 13px 14px;
  background: #fbfcff;
  color: var(--ink);
  outline: none;
}

.logic-box input:focus,
.logic-box select:focus,
.logic-box textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(124, 92, 255, 0.12);
}

.result-box {
  margin-top: 18px;
  padding: 16px;
  border-radius: 18px;
  background: var(--surface-soft);
  font-weight: 800;
}

.page-hero {
  padding: 70px 0 48px;
}

.page-hero.compact {
  padding-bottom: 22px;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.filter-btn {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 14px;
  background: var(--surface);
  color: var(--muted);
  font-weight: 850;
  cursor: pointer;
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--ink);
  color: white;
  border-color: var(--ink);
}

.course-detail {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 26px;
  align-items: start;
}

.lesson-list {
  display: grid;
  gap: 12px;
}

.lesson-item {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 16px;
  align-items: start;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.lesson-index {
  width: 44px;
  height: 44px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-soft);
  font-weight: 900;
  color: var(--primary-dark);
}

.lesson-item p {
  margin: 0;
  color: var(--muted);
}

.sticky-card {
  position: sticky;
  top: 104px;
  padding: 24px;
  border-radius: var(--radius);
  background: var(--ink);
  color: white;
  box-shadow: var(--shadow);
}

.sticky-card p {
  color: rgba(255,255,255,0.74);
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: grid;
  gap: 10px;
}

.check-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.check-list li::before {
  content: "✓";
  flex: 0 0 24px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--green);
  color: var(--ink);
  font-weight: 900;
  margin-top: 2px;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 18px;
}

.timeline-label {
  font-weight: 900;
  color: var(--primary-dark);
}

.timeline-content {
  padding: 22px;
  border-radius: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
}

.timeline-content p {
  margin: 0;
  color: var(--muted);
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 900px;
  margin-inline: auto;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: 22px;
  background: var(--surface);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  border: 0;
  background: transparent;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--ink);
  font-weight: 900;
  text-align: left;
  cursor: pointer;
}

.faq-question span:last-child {
  font-size: 1.5rem;
  line-height: 1;
}

.faq-answer {
  display: none;
  padding: 0 20px 20px;
  color: var(--muted);
}

.faq-item.open .faq-answer {
  display: block;
}

.faq-item.open .faq-question span:last-child {
  transform: rotate(45deg);
}

.cta-section {
  padding: 76px 0;
}

.cta-card {
  position: relative;
  overflow: hidden;
  padding: 44px;
  border-radius: 36px;
  background: linear-gradient(135deg, #0b1026, #27305f);
  color: white;
  box-shadow: var(--shadow);
}

.cta-card::after {
  content: "</>";
  position: absolute;
  right: 34px;
  bottom: -34px;
  color: rgba(255,255,255,0.08);
  font-size: 9rem;
  font-weight: 900;
}

.cta-card p {
  max-width: 700px;
  color: rgba(255,255,255,0.74);
  font-size: 1.08rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 24px;
  align-items: start;
}

.contact-card {
  padding: 26px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
}

.contact-card p {
  color: var(--muted);
}

.form-grid {
  display: grid;
  gap: 14px;
}

.form-grid .two-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.site-footer {
  padding: 48px 0 30px;
  background: #0b1026;
  color: white;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 1fr);
  gap: 32px;
}

.footer-logo {
  filter: brightness(0) invert(1);
  width: 170px;
  margin-bottom: 16px;
}

.footer-col h4 {
  margin: 0 0 14px;
}

.footer-col a,
.footer-col p {
  display: block;
  margin: 8px 0;
  color: rgba(255,255,255,0.72);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.58);
  font-size: 0.92rem;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 90;
  max-width: 360px;
  padding: 16px 18px;
  border-radius: 18px;
  color: white;
  background: var(--ink);
  box-shadow: var(--shadow);
  transform: translateY(30px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.hidden {
  display: none !important;
}

@media (max-width: 980px) {
  .nav-links,
  .nav-actions {
    display: none;
  }

  .menu-toggle {
    display: inline-block;
  }

  .mobile-menu {
    position: fixed;
    inset: 82px 16px auto 16px;
    display: none;
    padding: 18px;
    border-radius: 24px;
    background: var(--surface);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
  }

  .menu-open .mobile-menu {
    display: grid;
    gap: 8px;
  }

  .mobile-menu .nav-link,
  .mobile-menu .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-grid,
  .code-demo,
  .course-detail,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 54px;
  }

  .cards-grid,
  .course-grid,
  .pathway {
    grid-template-columns: repeat(2, 1fr);
  }

  .sticky-card {
    position: static;
  }

  .floating-note {
    right: 12px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 680px) {
  .container {
    width: min(100% - 22px, var(--container));
  }

  .navbar {
    min-height: 72px;
  }

  .mobile-menu {
    inset-top: 72px;
  }

  .logo img {
    width: 154px;
  }

  .hero,
  .section,
  .cta-section {
    padding: 46px 0;
  }

  .page-hero {
    padding: 44px 0 24px;
  }

  .hero-grid {
    gap: 28px;
  }

  .hero-actions,
  .cta-actions {
    align-items: stretch;
  }

  .hero-actions .btn,
  .cta-actions .btn {
    width: 100%;
  }

  .stats-row,
  .cards-grid,
  .course-grid,
  .pathway,
  .footer-grid,
  .form-grid .two-cols {
    grid-template-columns: 1fr;
  }

  .section-header {
    display: block;
  }

  .card,
  .logic-box,
  .cta-card {
    padding: 22px;
  }

  .floating-note {
    position: static;
    margin-top: 14px;
    max-width: none;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .footer-bottom {
    display: block;
  }

  pre {
    padding: 18px;
  }

  code {
    font-size: 0.86rem;
  }
}

.contact-card label {
  display: block;
  margin-bottom: 8px;
  font-weight: 800;
}

.contact-card input,
.contact-card select,
.contact-card textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 13px 14px;
  background: #fbfcff;
  color: var(--ink);
  outline: none;
}

.contact-card input:focus,
.contact-card select:focus,
.contact-card textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(124, 92, 255, 0.12);
}

/* Cursos activos y aulas */
.badge-warning {
  background: #fff4d6;
  color: #8a5f00;
}

.trial-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px;
  border-radius: 30px;
  background: linear-gradient(135deg, #fff4d6, #e7fbff);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
}

.trial-banner h2 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.trial-banner p {
  max-width: 720px;
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 1.04rem;
}

.catalog-trial {
  margin-bottom: 26px;
}

.bridge-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.bridge-card {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.bridge-card p {
  margin: 14px 0 0;
  color: var(--muted);
}

.bridge-label {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--primary-dark);
  font-size: 0.78rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  font-weight: 900;
}

.visual-block {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 12px 18px;
  border-radius: 16px;
  color: white;
  font-weight: 900;
  box-shadow: 0 14px 24px rgba(11, 16, 38, 0.12);
}

.visual-block.purple { background: var(--primary); }
.visual-block.cyan { background: var(--cyan); color: var(--ink); }
.visual-block.green { background: var(--green); color: var(--ink); }
.visual-block.yellow { background: var(--yellow); color: var(--ink); }
.visual-block.dark { background: var(--ink); }

.module-list .lesson-item {
  grid-template-columns: 64px 1fr;
}

.module-list code,
.timeline code,
.lesson-item code {
  padding: 2px 6px;
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--primary-dark);
  font-size: 0.92em;
}

.block-demo .section-lead {
  margin-bottom: 18px;
}

.block-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0;
}

.block-stage {
  display: grid;
  gap: 12px;
  min-height: 150px;
  padding: 16px;
  border-radius: 22px;
  background: #fbfcff;
  border: 1px dashed var(--border);
}

.block-stage-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.block-arrow {
  color: var(--muted);
  font-weight: 900;
}

.block-caption {
  margin: 4px 0 0;
  color: var(--muted);
  font-weight: 750;
}

@media (max-width: 980px) {
  .trial-banner,
  .bridge-grid {
    grid-template-columns: 1fr;
  }

  .trial-banner {
    display: grid;
  }

  .trial-banner .btn {
    width: fit-content;
  }
}

@media (max-width: 680px) {
  .mobile-menu {
    top: 72px;
  }

  .trial-banner .btn {
    width: 100%;
  }

  .module-list .lesson-item {
    grid-template-columns: 1fr;
  }

  .block-stage-row {
    align-items: stretch;
  }

  .visual-block {
    width: 100%;
    justify-content: center;
  }

  .block-arrow {
    display: none;
  }
}

/* Aula interactiva de cursos */
.course-app-shell {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  margin-top: 30px;
}

.course-sidebar,
.course-workspace,
.learning-card,
.activity-card,
.completion-card {
  border: 1px solid var(--border);
  border-radius: 28px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.course-sidebar {
  position: sticky;
  top: 104px;
  padding: 18px;
  display: grid;
  gap: 16px;
}

.course-student-card {
  padding: 18px;
  border-radius: 22px;
  background: linear-gradient(145deg, #ffffff, #f2f5ff);
  border: 1px solid var(--border);
}

.course-student-card h3 {
  margin: 8px 0 14px;
  font-size: 1.15rem;
}

.course-student-card label {
  display: block;
  color: var(--muted);
  font-weight: 850;
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.student-row {
  display: flex;
  gap: 8px;
}

.student-row input,
.fill-box input,
.project-lab input,
.project-lab textarea,
.match-row select {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 10px 12px;
  background: #fbfcff;
  color: var(--ink);
  outline: none;
}

.student-row input:focus,
.fill-box input:focus,
.project-lab input:focus,
.project-lab textarea:focus,
.match-row select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(124, 92, 255, 0.12);
}

.progress-box {
  margin-top: 16px;
  padding: 14px;
  border-radius: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
}

.progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.progress-info strong {
  font-size: 1.4rem;
  color: var(--primary-dark);
}

.progress-info span,
.course-score span,
.lesson-status-card span {
  color: var(--muted);
  font-weight: 750;
  font-size: 0.88rem;
}

.progress-track {
  height: 10px;
  border-radius: 99px;
  overflow: hidden;
  background: #e8ecfa;
}

.progress-track span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  transition: width 0.35s ease;
}

.course-score {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 18px;
  background: #fff9e9;
  border: 1px solid rgba(255, 209, 102, 0.55);
}

.course-score strong {
  font-size: 1.4rem;
}

.lesson-tabs {
  display: grid;
  gap: 8px;
  max-height: 520px;
  overflow: auto;
  padding-right: 4px;
}

.lesson-tab {
  display: grid;
  grid-template-columns: 38px 1fr 24px;
  align-items: center;
  gap: 8px;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 12px;
  background: #fbfcff;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.lesson-tab:hover {
  transform: translateY(-1px);
  background: var(--surface-soft);
}

.lesson-tab.active {
  border-color: rgba(124, 92, 255, 0.45);
  background: #f1efff;
}

.lesson-tab.done {
  border-color: rgba(6, 214, 160, 0.5);
}

.tab-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: var(--surface-soft);
  color: var(--primary-dark);
  font-weight: 900;
  font-size: 0.8rem;
}

.tab-title {
  font-weight: 850;
  line-height: 1.2;
}

.tab-status {
  color: var(--green);
  font-weight: 950;
  font-size: 1.1rem;
}

.course-workspace {
  padding: 24px;
}

.lesson-hero-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 24px;
  border-radius: 24px;
  background: linear-gradient(135deg, #f7f8ff, #ecfbff);
  border: 1px solid var(--border);
}

.lesson-hero-card h2 {
  margin: 8px 0 10px;
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  letter-spacing: -0.03em;
}

.lesson-hero-card p {
  margin: 0;
  color: var(--muted);
  max-width: 720px;
}

.lesson-status-card {
  min-width: 150px;
  padding: 16px;
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  text-align: center;
}

.lesson-status-card strong,
.lesson-status-card span {
  display: block;
}

.lesson-status-card.complete {
  background: #edfff9;
  border-color: rgba(6, 214, 160, 0.45);
}

.course-learning-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 18px;
}

.learning-card,
.activity-card,
.completion-card {
  padding: 22px;
}

.learning-card h3,
.activity-card h3,
.completion-card h3 {
  margin: 0 0 10px;
}

.learning-card p,
.activity-card p,
.completion-card p {
  color: var(--muted);
}

.mini-block-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.code-card pre,
.code-drop,
.certificate {
  white-space: pre-wrap;
  overflow: auto;
}

.activity-card {
  margin-top: 18px;
}

.activity-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.activity-pill {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--primary-dark);
  background: var(--surface-soft);
  font-weight: 900;
  font-size: 0.82rem;
  white-space: nowrap;
}

.order-builder,
.quiz-options,
.match-grid,
.project-checks,
.piece-bank {
  display: grid;
  gap: 10px;
  margin-bottom: 16px;
}

.order-item,
.quiz-option,
.match-row,
.project-check {
  display: grid;
  gap: 12px;
  align-items: center;
  padding: 14px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: #fbfcff;
}

.order-item {
  grid-template-columns: 1fr auto;
}

.order-item span,
.quiz-option span,
.match-row span,
.project-check span {
  font-weight: 850;
}

.order-item button {
  width: 34px;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  cursor: pointer;
  font-weight: 900;
}

.quiz-option {
  grid-template-columns: auto 1fr;
  cursor: pointer;
}

.quiz-option input,
.project-check input {
  width: 20px;
  height: 20px;
  accent-color: var(--primary);
}

.match-row {
  grid-template-columns: minmax(180px, 0.8fr) 1fr;
}

.fill-box {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.fill-box small {
  color: var(--muted);
  font-weight: 700;
}

.loop-lab {
  display: grid;
  gap: 16px;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid var(--border);
  background: #fbfcff;
  margin-bottom: 16px;
}

.loop-lab input[type="range"] {
  width: 100%;
  accent-color: var(--primary);
}

.robot-track {
  min-height: 76px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 14px;
  border-radius: 18px;
  background: var(--surface);
  border: 1px dashed var(--border);
}

.robot {
  font-size: 2rem;
}

.step-dot {
  width: 30px;
  height: 30px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
}

.piece-bank {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.code-piece,
.selected-piece {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 12px;
  background: #10162f;
  color: white;
  text-align: left;
  cursor: pointer;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-weight: 800;
}

.code-drop {
  min-height: 116px;
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 16px;
  border-radius: 18px;
  background: #0b1026;
  color: white;
  margin-bottom: 14px;
}

.code-drop span {
  color: rgba(255,255,255,0.7);
}

.selected-piece {
  background: rgba(124, 92, 255, 0.22);
  border-color: rgba(255,255,255,0.15);
}

.builder-actions,
.course-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.project-lab {
  display: grid;
  gap: 14px;
  margin-bottom: 16px;
}

.project-lab label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 850;
}

.project-checks {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.project-check {
  grid-template-columns: auto 1fr;
}

.activity-result {
  margin-top: 14px;
}

.result-box {
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid var(--border);
}

.result-box p {
  margin: 4px 0 0;
}

.result-box.success {
  background: #edfff9;
  border-color: rgba(6, 214, 160, 0.45);
}

.result-box.error {
  background: #fff0f0;
  border-color: rgba(255, 107, 107, 0.45);
}

.course-controls {
  justify-content: space-between;
  margin-top: 18px;
}

.course-controls button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.completion-card {
  margin-top: 18px;
  background: linear-gradient(135deg, #ffffff, #f3fff9);
}

.completion-card.locked {
  background: #fbfcff;
}

.certificate {
  margin-top: 18px;
  padding: 28px;
  border: 2px dashed rgba(124, 92, 255, 0.45);
  border-radius: 24px;
  background: white;
  text-align: center;
}

.certificate strong:first-child {
  color: var(--primary-dark);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.certificate h2 {
  margin: 12px 0;
  font-size: clamp(1.8rem, 4vw, 3rem);
}

.certificate h3 {
  margin: 10px 0;
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  color: var(--primary-dark);
}

@media (max-width: 1050px) {
  .course-app-shell {
    grid-template-columns: 1fr;
  }

  .course-sidebar {
    position: static;
  }

  .lesson-tabs {
    max-height: none;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 780px) {
  .course-workspace,
  .course-sidebar,
  .learning-card,
  .activity-card,
  .completion-card {
    border-radius: 22px;
  }

  .course-workspace,
  .course-sidebar {
    padding: 14px;
  }

  .lesson-hero-card,
  .activity-header,
  .course-learning-grid {
    grid-template-columns: 1fr;
    display: grid;
  }

  .lesson-status-card {
    width: 100%;
  }

  .lesson-tabs,
  .piece-bank,
  .project-checks {
    grid-template-columns: 1fr;
  }

  .match-row {
    grid-template-columns: 1fr;
  }

  .student-row,
  .course-controls,
  .builder-actions {
    flex-direction: column;
  }

  .student-row .btn,
  .course-controls .btn,
  .builder-actions .btn,
  .activity-card > .btn {
    width: 100%;
  }
}

@media print {
  body * {
    visibility: hidden;
  }
  [data-certificate],
  [data-certificate] * {
    visibility: visible;
  }
  [data-certificate] {
    position: fixed;
    inset: 24px;
    margin: 0;
    box-shadow: none;
  }
}


/* Estructura real de cursos */
.course-shell-intro {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 24px;
  align-items: start;
}

.course-overview-panel,
.course-map-panel {
  border: 1px solid var(--border);
  border-radius: 30px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  padding: 26px;
}

.course-map-panel {
  position: sticky;
  top: 104px;
}

.course-map-panel .btn + .btn {
  margin-top: 10px;
}

.course-module-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 32px;
}

.module-card {
  min-height: 100%;
  padding: 22px;
  border-radius: 26px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
}

.module-card .module-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 16px;
  background: var(--surface-soft);
  color: var(--primary-dark);
  font-weight: 950;
  margin-bottom: 14px;
}

.module-card h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.module-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

.module-card .module-tag {
  display: inline-flex;
  margin-top: 14px;
  padding: 7px 10px;
  border-radius: 999px;
  background: #fbfcff;
  border: 1px solid var(--border);
  color: var(--primary-dark);
  font-size: 0.78rem;
  font-weight: 900;
}

.course-stage-card {
  padding: 28px;
  border-radius: 30px;
  background: linear-gradient(135deg, #ffffff, #eef2ff);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
}

.aula-course-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.aula-course-card {
  display: grid;
  gap: 18px;
  padding: 28px;
  border-radius: 30px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
}

.aula-course-card.featured {
  background: linear-gradient(145deg, #ffffff, #f2f5ff);
}

.aula-course-card .course-emoji {
  font-size: 2.8rem;
}

.curriculum-list {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.curriculum-list a,
.curriculum-list span {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 14px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #fbfcff;
  color: var(--ink);
  font-weight: 850;
}

.curriculum-list small {
  color: var(--muted);
  font-weight: 750;
}

.course-note {
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: 18px;
  background: #fbfcff;
  border: 1px solid var(--border);
  color: var(--muted);
}

@media (max-width: 1100px) {
  .course-module-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .course-shell-intro,
  .aula-course-grid {
    grid-template-columns: 1fr;
  }

  .course-map-panel {
    position: static;
  }
}

@media (max-width: 680px) {
  .course-module-grid {
    grid-template-columns: 1fr;
  }

  .course-overview-panel,
  .course-map-panel,
  .aula-course-card,
  .course-stage-card {
    padding: 20px;
    border-radius: 24px;
  }
}


/* Laboratorio de Proyectos Junior */
.project-lab-shell {
  display: grid;
  gap: 24px;
  margin-top: 30px;
}

.project-selector-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.project-option-card {
  border: 1px solid var(--border);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  padding: 20px;
  display: grid;
  gap: 12px;
  cursor: pointer;
  text-align: left;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}

.project-option-card:hover,
.project-option-card.active {
  transform: translateY(-2px);
  border-color: rgba(124, 92, 255, 0.48);
  background: linear-gradient(145deg, #ffffff, #f2f5ff);
}

.project-option-card .project-icon {
  font-size: 2.4rem;
}

.project-option-card h3 {
  margin: 0;
  font-size: 1.1rem;
}

.project-option-card p {
  margin: 0;
  color: var(--muted);
  font-size: .94rem;
}

.project-builder-shell {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.project-builder-sidebar,
.project-builder-main,
.project-panel {
  border: 1px solid var(--border);
  border-radius: 28px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.project-builder-sidebar {
  position: sticky;
  top: 104px;
  padding: 18px;
  display: grid;
  gap: 16px;
}

.project-builder-main {
  padding: 24px;
  display: grid;
  gap: 18px;
}

.project-stage-list {
  display: grid;
  gap: 8px;
  max-height: 540px;
  overflow: auto;
  padding-right: 4px;
}

.project-stage-tab {
  display: grid;
  grid-template-columns: 34px 1fr 24px;
  align-items: center;
  gap: 8px;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 11px;
  background: #fbfcff;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
}

.project-stage-tab.active {
  background: #f1efff;
  border-color: rgba(124, 92, 255, .45);
}

.project-stage-tab.done {
  border-color: rgba(6, 214, 160, .5);
}

.project-stage-number {
  width: 30px;
  height: 30px;
  border-radius: 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-soft);
  color: var(--primary-dark);
  font-weight: 950;
  font-size: .78rem;
}

.project-panel {
  padding: 20px;
}

.project-panel h3 {
  margin-bottom: 8px;
}

.project-panel p,
.project-panel li {
  color: var(--muted);
}

.project-stage-hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  align-items: start;
  padding: 22px;
  border-radius: 24px;
  background: linear-gradient(135deg, #f7f8ff, #ecfbff);
  border: 1px solid var(--border);
}

.project-stage-hero h2 {
  margin: 6px 0 10px;
  font-size: clamp(1.6rem, 3vw, 2.45rem);
}

.project-stage-hero p {
  margin: 0;
  color: var(--muted);
}

.project-stage-badge {
  min-width: 136px;
  padding: 14px;
  border-radius: 18px;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
}

.project-stage-badge strong,
.project-stage-badge span {
  display: block;
}

.project-builder-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.project-task-grid {
  display: grid;
  gap: 10px;
}

.project-task {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: start;
  padding: 12px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: #fbfcff;
  color: var(--muted);
}

.project-task input {
  width: 20px;
  height: 20px;
  accent-color: var(--primary);
  margin-top: 2px;
}

.project-notes-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.project-notes-grid label,
.project-console-panel label,
.editor-box label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 850;
}

.project-notes-grid input,
.project-notes-grid textarea,
.editor-box textarea,
.project-console-panel textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 12px;
  background: #fbfcff;
  color: var(--ink);
  outline: none;
}

.project-notes-grid textarea {
  min-height: 92px;
  resize: vertical;
}

.project-code-workbench {
  display: grid;
  gap: 18px;
}

.editor-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.editor-box {
  display: grid;
  gap: 10px;
}

.editor-box textarea,
.project-console-panel textarea {
  min-height: 220px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .88rem;
  line-height: 1.45;
  resize: vertical;
}

.project-console-panel textarea {
  min-height: 150px;
}

.preview-frame {
  width: 100%;
  min-height: 360px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: white;
}

.console-output {
  min-height: 120px;
  max-height: 260px;
  overflow: auto;
  padding: 16px;
  border-radius: 18px;
  background: #0b1026;
  color: #f7f8ff;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre-wrap;
}

.console-output .ok { color: #8fffea; }
.console-output .warn { color: #ffd166; }
.console-output .err { color: #ff8a8a; }

.project-actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.project-actions-row .btn {
  white-space: nowrap;
}

.project-status-note {
  padding: 13px 15px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: #fbfcff;
  color: var(--muted);
  font-weight: 800;
}

.project-status-note.success {
  background: #edfff9;
  border-color: rgba(6, 214, 160, 0.45);
  color: #08775d;
}

.project-status-note.error {
  background: #fff0f0;
  border-color: rgba(255, 107, 107, 0.45);
  color: #b33a3a;
}

@media (max-width: 1150px) {
  .project-selector-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .project-builder-shell,
  .project-builder-grid {
    grid-template-columns: 1fr;
  }
  .project-builder-sidebar {
    position: static;
  }
  .project-stage-list {
    max-height: none;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .editor-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .project-selector-grid,
  .project-stage-list,
  .project-notes-grid {
    grid-template-columns: 1fr;
  }
  .project-builder-main,
  .project-builder-sidebar,
  .project-panel {
    padding: 16px;
    border-radius: 22px;
  }
  .project-stage-hero {
    grid-template-columns: 1fr;
  }
  .project-stage-badge {
    width: 100%;
  }
  .project-actions-row .btn {
    width: 100%;
  }
}