:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --tint: #eef4f2;
  --text: #1c2321;
  --muted: #5b6763;
  --border: #dbe3e0;
  --primary: #0f6e5f;
  --primary-hover: #0b574b;
  --on-primary: #ffffff;
  --danger: #b42318;
  --ok: #157347;
  --ok-bg: #e6f4ec;
  --warn: #8a5a00;
  --warn-bg: #fdf3dc;
  --ko-bg: #fdecea;
  --radius: 14px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans Arabic", "Geeza Pro", sans-serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111615;
    --surface: #1a201f;
    --tint: #161d1b;
    --text: #e8eeec;
    --muted: #a3b0ac;
    --border: #2c3634;
    --primary: #3fb59f;
    --primary-hover: #5cc8b3;
    --on-primary: #0b1513;
    --danger: #f2877d;
    --ok: #7fd4a2;
    --ok-bg: #18301f;
    --warn: #f0c46a;
    --warn-bg: #33290f;
    --ko-bg: #3a1c19;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
}

html[dir="rtl"] body {
  line-height: 1.8;
}

h1,
h2,
h3,
h4 {
  line-height: 1.25;
  margin: 0 0 0.6em;
}

h1 {
  font-size: clamp(1.8rem, 5vw, 2.6rem);
}

h2 {
  font-size: 1.5rem;
}

h4 {
  margin-block-start: 1.2em;
}

a {
  color: var(--primary);
}

[hidden] {
  display: none !important;
}

p:empty {
  display: none;
}

.wrap {
  max-width: 46rem;
  margin-inline: auto;
  padding-inline: 1rem;
}

.small {
  font-size: 0.875rem;
}

.muted {
  color: var(--muted);
}

/* Cabecera */
.topbar {
  border-block-end: 1px solid var(--border);
  background: var(--surface);
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 3.5rem;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.01em;
}

.lang-switch {
  font: inherit;
  font-size: 0.95rem;
  padding: 0.35rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

/* Secciones */
.hero {
  padding-block: 3rem 2.5rem;
}

.lead {
  font-size: 1.2rem;
  color: var(--muted);
  margin-block: 0 1.5rem;
}

.section {
  padding-block: 2.5rem;
}

.section--tinted {
  background: var(--tint);
}

.steps {
  display: grid;
  gap: 0.75rem;
  padding-inline-start: 1.4rem;
  margin: 0;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.card--center {
  text-align: center;
}

/* Botones */
.button {
  display: inline-block;
  font: inherit;
  font-weight: 600;
  padding: 0.7rem 1.3rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}

.button--primary {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--on-primary);
}

.button--primary:hover {
  background: var(--primary-hover);
}

.button--danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}

.button--big {
  font-size: 1.1rem;
  padding: 0.9rem 1.6rem;
}

.button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.link-button {
  font: inherit;
  background: none;
  border: none;
  color: var(--primary);
  text-decoration: underline;
  cursor: pointer;
  padding: 0.5rem 0;
}

/* Simulador */
.task-list {
  display: grid;
  gap: 0.75rem;
}

.task-card {
  font: inherit;
  font-weight: 600;
  text-align: start;
  padding: 1rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.task-card:hover {
  border-color: var(--primary);
}

.prompt {
  font-size: 1.15rem;
  font-weight: 600;
}

.help {
  background: var(--tint);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  font-family: var(--font);
  line-height: 1.8;
}

.check {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  margin-block: 1rem;
  font-size: 0.95rem;
}

.check input {
  margin-block-start: 0.35rem;
  inline-size: 1.1rem;
  block-size: 1.1rem;
  flex: none;
}

.recorder {
  display: grid;
  justify-items: start;
  gap: 0.25rem;
  margin-block: 1rem;
}

.timer {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  margin: 0.5rem 0 0;
}

.spinner {
  inline-size: 2.5rem;
  block-size: 2.5rem;
  margin: 0.5rem auto 1rem;
  border: 4px solid var(--border);
  border-block-start-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .spinner {
    animation-duration: 3s;
  }
}

/* Resultado */
.score {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.score__value {
  font-size: 2.2rem;
  font-weight: 700;
}

.badge {
  border-radius: 999px;
  padding: 0.25rem 0.8rem;
  font-weight: 600;
  font-size: 0.95rem;
}

.badge--pass {
  background: var(--ok-bg);
  color: var(--ok);
}

.badge--borderline {
  background: var(--warn-bg);
  color: var(--warn);
}

.badge--below {
  background: var(--ko-bg);
  color: var(--danger);
}

.correction {
  border-inline-start: 3px solid var(--primary);
  padding-inline-start: 0.9rem;
  margin-block: 0.9rem;
}

.correction p {
  margin: 0.15rem 0;
}

.label {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
}

.said {
  text-decoration: line-through;
  color: var(--danger);
}

.better {
  font-weight: 600;
  color: var(--ok);
}

.why {
  color: var(--muted);
}

.upsell {
  margin-block: 1.5rem;
  padding: 1rem;
  border-radius: var(--radius);
  background: var(--tint);
}

.upsell__offer {
  font-weight: 700;
}

.rating {
  margin-top: 1.5rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.alert {
  margin-block: 1rem 0;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  background: var(--ko-bg);
  color: var(--danger);
}

.success {
  padding: 0.75rem 1rem;
  border-radius: 10px;
  background: var(--ok-bg);
  color: var(--ok);
}

details summary {
  cursor: pointer;
  font-weight: 600;
}

/* CCSE */
.quiz__question {
  font-size: 1.15rem;
  font-weight: 600;
  margin-block-end: 0.5rem;
}

.quiz__options {
  display: grid;
  gap: 0.6rem;
  margin-block: 1rem;
}

.option {
  font: inherit;
  text-align: start;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.option:hover:not(:disabled) {
  border-color: var(--primary);
}

.option:disabled {
  cursor: default;
}

.option--correct {
  border-color: var(--ok);
  background: var(--ok-bg);
}

.option--wrong {
  border-color: var(--danger);
  background: var(--ko-bg);
}

.feedback {
  font-weight: 600;
}

.feedback--ok {
  color: var(--ok);
}

.feedback--ko {
  color: var(--danger);
}

.quiz__score {
  font-size: 1.4rem;
  font-weight: 700;
}

/* Plan */
.plan {
  text-align: center;
  max-width: 28rem;
  margin-inline: auto;
}

.price {
  font-size: 2.4rem;
  font-weight: 700;
  margin: 0 0 1rem;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  text-align: start;
  display: grid;
  gap: 0.5rem;
}

.checklist li::before {
  content: "✓";
  color: var(--primary);
  font-weight: 700;
  margin-inline-end: 0.5rem;
}

.faq {
  border-block-end: 1px solid var(--border);
  padding-block: 0.8rem;
}

.faq p {
  margin-block: 0.5rem 0;
}

/* Pie */
.footer {
  padding-block: 2rem 3rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.footer__links {
  display: flex;
  gap: 1.25rem;
}

/* Lista de espera */
dialog {
  border: none;
  border-radius: var(--radius);
  padding: 1.5rem;
  max-width: min(28rem, calc(100vw - 2rem));
  background: var(--surface);
  color: var(--text);
}

dialog::backdrop {
  background: rgb(0 0 0 / 0.45);
}

dialog label[for] {
  display: block;
  font-weight: 600;
  margin-block-end: 0.3rem;
}

dialog input[type="email"] {
  inline-size: 100%;
  font: inherit;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
}

.trap {
  position: absolute;
  inset-inline-start: -10000px;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
}

/* Páginas legales y guías */
.legal,
.guide {
  padding-block: 2rem 3rem;
}

.legal h2,
.guide h2 {
  font-size: 1.2rem;
  margin-block-start: 1.8em;
}

a.brand,
a.lang-switch {
  color: var(--text);
  text-decoration: none;
}

.table-scroll {
  overflow-x: auto;
}

.guide table {
  width: 100%;
  border-collapse: collapse;
  margin-block: 1rem;
}

.guide th,
.guide td {
  padding: 0.5rem 0.75rem;
  border-block-end: 1px solid var(--border);
  text-align: start;
  vertical-align: top;
}

.example {
  margin-block: 1rem;
  padding: 0.75rem 1rem;
  border-inline-start: 4px solid var(--primary);
  border-radius: 0 10px 10px 0;
  background: var(--surface);
}

[dir="rtl"] .example {
  border-radius: 10px 0 0 10px;
}

.cta {
  margin-block: 2rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  background: var(--tint);
}

.footer__links {
  flex-wrap: wrap;
}

.pending {
  background: var(--warn-bg);
  color: var(--warn);
  padding: 0 0.3em;
  border-radius: 4px;
}

@media (min-width: 40rem) {
  .task-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .card {
    padding: 1.75rem;
  }
}