/* ============================================================
   Inglés 5º Primaria — Landing
   Sistema de diseño: fresco, cálido y profesional
   ============================================================ */

:root {
  --ink: #1f2a3a;
  --ink-soft: #55617a;
  --muted: #7c8698;

  --coral: #ff6b4a;
  --coral-dark: #f05634;
  --coral-soft: #ffe7df;

  --teal: #17b8a6;
  --teal-dark: #0f9d8d;
  --teal-soft: #d9f6f1;

  --gold: #ffc13c;
  --gold-soft: #fff3d6;

  --sky: #4f9df7;
  --sky-soft: #e3efff;

  --lav: #8a7cf0;
  --lav-soft: #eceaff;

  --bg: #fffaf6;
  --bg-soft: #f6f1ec;
  --surface: #ffffff;
  --line: #eee5dd;

  --shadow-sm: 0 1px 2px rgba(31, 42, 58, .06), 0 2px 8px rgba(31, 42, 58, .05);
  --shadow-md: 0 6px 24px rgba(31, 42, 58, .08);
  --shadow-lg: 0 20px 50px rgba(31, 42, 58, .12);

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

  --font-head: "Baloo 2", system-ui, sans-serif;
  --font-body: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;

  --maxw: 1120px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
code {
  font-family: ui-monospace, "SFMono-Regular", "Menlo", monospace;
  font-size: .85em;
  background: var(--teal-soft);
  color: var(--teal-dark);
  padding: .1em .35em;
  border-radius: 6px;
}

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-body); font-weight: 700; font-size: 15px;
  padding: 12px 22px; border-radius: 999px; border: 2px solid transparent;
  cursor: pointer; transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-lg { padding: 15px 28px; font-size: 16px; }
.btn-block { width: 100%; }

.btn-primary { background: var(--coral); color: #fff; box-shadow: 0 8px 20px rgba(255, 107, 74, .35); }
.btn-primary:hover { background: var(--coral-dark); }

.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: #16202e; }

.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { background: #fff4ef; }

.btn-outline { border-color: var(--line); background: var(--surface); color: var(--ink); }
.btn-outline:hover { border-color: var(--coral); color: var(--coral-dark); }

.btn-teal { background: #d9f6f1; color: var(--teal-dark); box-shadow: 0 8px 20px rgba(23, 184, 166, .30); }
.btn-teal:hover { background: var(--teal); color: #fff; }

.btn-ghost { color: var(--ink-soft); }
.btn-ghost:hover { color: var(--coral-dark); background: var(--coral-soft); }
.btn-ghost-light { color: #fff; border-color: rgba(255,255,255,.4); }
.btn-ghost-light:hover { background: rgba(255,255,255,.12); border-color: #fff; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: #fffaf6;
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 20px; }

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 40px; height: 40px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--coral), var(--gold));
  color: #fff; border-radius: 12px;
}
.brand-mark svg { width: 24px; height: 24px; }
.brand-text { font-family: var(--font-head); font-weight: 800; font-size: 22px; letter-spacing: -.5px; }
.brand-text span { color: var(--coral); }
.brand-logo { height: 58px; width: auto; max-width: 100%; display: block; object-fit: contain; }
.site-footer .brand-logo { height: 46px; margin-bottom: 4px; }

.nav-links { display: flex; gap: 26px; }
.nav-links a { font-weight: 600; font-size: 15px; color: var(--ink-soft); transition: color .15s; }
.nav-links a:hover { color: var(--coral-dark); }

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

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2.5px; background: var(--ink); border-radius: 2px; transition: .25s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 40px; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(600px 400px at 85% -10%, var(--coral-soft), transparent 60%),
    radial-gradient(500px 400px at -10% 20%, var(--teal-soft), transparent 60%),
    radial-gradient(400px 300px at 50% 110%, var(--gold-soft), transparent 60%);
}

.hero-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 28px; align-items: center; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: .06em;
  color: var(--teal-dark); background: var(--teal-soft);
  padding: 7px 14px; border-radius: 999px; margin-bottom: 22px;
}
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--teal); }

.hero h1 {
  font-family: var(--font-head); font-weight: 800;
  font-size: clamp(34px, 4.6vw, 52px); line-height: 1.06; letter-spacing: -.5px;
  margin-bottom: 20px;
}
.hero h1 .accent { color: var(--coral); position: relative; white-space: nowrap; }
.hero h1 .accent::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 4px; height: 10px;
  background: var(--gold-soft); z-index: -1; border-radius: 4px;
}

.lead { font-size: 18px; color: var(--ink-soft); max-width: 520px; margin-bottom: 28px; }

.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 26px; }

.hero-trust { display: flex; gap: 20px; flex-wrap: wrap; }
.hero-trust li { display: flex; align-items: center; gap: 7px; font-size: 14px; font-weight: 600; color: var(--ink-soft); }
.hero-trust svg { width: 18px; height: 18px; color: var(--teal); }

/* Phone mockup */
.hero-visual { position: relative; display: flex; justify-content: flex-end; }
.phone {
  width: 300px; background: #fff; border-radius: 34px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
  padding: 12px; position: relative;
}
.phone-notch { width: 120px; height: 22px; background: var(--ink); border-radius: 999px; margin: 0 auto 10px; }
.phone-screen { background: linear-gradient(180deg, #fff, var(--bg-soft)); border-radius: 24px; padding: 16px; }
.app-bar { display: flex; justify-content: space-between; align-items: center; font-weight: 700; font-size: 15px; margin-bottom: 14px; }
.app-bar .stars { color: var(--gold); }
.app-week { margin-bottom: 10px; }
.app-week small { display: block; font-size: 10px; letter-spacing: .1em; color: var(--muted); font-weight: 700; }
.app-week b { font-size: 17px; font-family: var(--font-head); }
.app-days { display: flex; gap: 10px; margin-bottom: 14px; }
.day {
  width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center;
  font-weight: 700; background: #fff; border: 1px solid var(--line); color: var(--muted);
}
.day.done { background: var(--teal-soft); color: var(--teal-dark); border-color: transparent; }
.day.current { background: var(--coral); color: #fff; border-color: transparent; box-shadow: 0 6px 14px rgba(255,107,74,.4); }
.app-card { display: flex; flex-direction: column; gap: 10px; margin-bottom: 14px; }
.card-row { display: flex; align-items: center; gap: 10px; background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 10px; }
.card-row .emoji { font-size: 22px; }
.card-txt { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.card-txt b { font-size: 13px; }
.card-txt small { font-size: 11px; color: var(--muted); }
.chip { font-size: 10px; font-weight: 700; padding: 4px 8px; border-radius: 999px; background: var(--teal-soft); color: var(--teal-dark); white-space: nowrap; }
.chip.pending { background: var(--coral-soft); color: var(--coral-dark); }
.app-progress { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--ink-soft); font-weight: 600; }
.app-progress .bar { flex: 1; height: 8px; background: #ece7e1; border-radius: 999px; overflow: hidden; }
.app-progress .bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--coral), var(--gold)); border-radius: 999px; }

.float-chip {
  position: absolute; background: #fff; border: 1px solid var(--line);
  border-radius: 999px; padding: 9px 16px; font-weight: 700; font-size: 13px;
  box-shadow: var(--shadow-md); animation: float 5s ease-in-out infinite;
}
.chip-a { top: 16%; left: 4%; }
.chip-b { top: 44%; right: 0; animation-delay: 1.2s; }
.chip-c { bottom: 8%; left: 10%; animation-delay: 2.4s; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

.trust-bar {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 12px;
  margin-top: 52px; padding: 18px 22px; background: var(--surface);
  border: 1px solid var(--line); border-radius: 999px; box-shadow: var(--shadow-sm);
  font-weight: 600; font-size: 14px; color: var(--ink-soft);
}
.trust-bar .sep { color: var(--line); }

/* ---------- Secciones genéricas ---------- */
.section { padding: 88px 0; }
.section-head { max-width: 680px; margin: 0 auto 52px; text-align: center; }
.kicker {
  display: inline-block; font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: .08em;
  color: var(--coral-dark); background: var(--coral-soft); padding: 6px 14px; border-radius: 999px; margin-bottom: 16px;
}
.section-head h2 { font-family: var(--font-head); font-weight: 800; font-size: clamp(28px, 4vw, 40px); line-height: 1.12; letter-spacing: -.5px; margin-bottom: 14px; }
.section-sub { font-size: 17px; color: var(--ink-soft); }

/* ---------- Problema ---------- */
.problem-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.problem-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-sm); }
.p-icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: var(--coral-soft); color: var(--coral-dark); margin-bottom: 18px;
}
.p-icon svg { width: 26px; height: 26px; }
.problem-card:nth-child(2) .p-icon { background: var(--sky-soft); color: var(--sky); }
.problem-card:nth-child(3) .p-icon { background: var(--teal-soft); color: var(--teal-dark); }
.problem-card h3 { font-family: var(--font-head); font-weight: 700; font-size: 19px; margin-bottom: 8px; }
.problem-card p { color: var(--ink-soft); font-size: 15px; }

/* ---------- Cómo funciona ---------- */
.how { background: var(--bg-soft); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; position: relative; }
.step {
  background: var(--surface); border-radius: var(--radius); padding: 32px 28px;
  border: 1px solid var(--line); box-shadow: var(--shadow-sm); position: relative;
}
.step-num {
  width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
  font-family: var(--font-head); font-weight: 800; font-size: 20px; color: #fff;
  background: linear-gradient(135deg, var(--coral), var(--gold)); margin-bottom: 18px;
}
.step h3 { font-family: var(--font-head); font-weight: 700; font-size: 20px; margin-bottom: 8px; }
.step p { color: var(--ink-soft); font-size: 15px; }

/* ---------- Contenido (unidades) ---------- */
.units-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.unit {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow-sm); transition: transform .2s ease, box-shadow .2s ease;
  position: relative; overflow: hidden;
}
.unit:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.unit-emoji { font-size: 34px; display: inline-block; margin-bottom: 12px; }
.unit-num { display: block; font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.unit h3 { font-family: var(--font-head); font-weight: 700; font-size: 19px; margin-bottom: 2px; }
.unit p { color: var(--ink-soft); font-size: 14px; margin-bottom: 12px; }
.unit-tag {
  display: inline-block; font-size: 12px; font-weight: 600; color: var(--teal-dark);
  background: var(--teal-soft); padding: 5px 10px; border-radius: 8px;
}
.unit:nth-child(2n) .unit-tag { color: var(--coral-dark); background: var(--coral-soft); }
.unit:nth-child(3n) .unit-tag { color: var(--sky); background: var(--sky-soft); }

/* ---------- Dinámicas ---------- */
.dynamics { background: var(--ink); }
.dynamics .kicker { background: rgba(255,255,255,.12); color: var(--gold); }
.dynamics .section-head h2 { color: #fff; }
.dynamics .section-sub { color: #c6ccd9; }
.dyn-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.dyn { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius-sm); padding: 20px; transition: background .2s ease, transform .2s ease; }
.dyn:hover { background: rgba(255,255,255,.09); transform: translateY(-3px); }
.dyn span { font-size: 26px; }
.dyn b { display: block; font-size: 15px; margin: 8px 0 4px; color: #fff; }
.dyn p { font-size: 13px; color: #c6ccd9; }
.dyn code { background: rgba(255,255,255,.1); color: var(--gold); }

/* ---------- Asistente de voz ---------- */
.voice { background: linear-gradient(180deg, var(--bg), var(--teal-soft)); }
.voice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.voice-copy h2 { font-family: var(--font-head); font-weight: 800; font-size: clamp(26px, 3.6vw, 38px); line-height: 1.12; letter-spacing: -.5px; margin-bottom: 16px; }
.voice-copy > p { color: var(--ink-soft); font-size: 17px; margin-bottom: 20px; }
.check-list { display: grid; gap: 12px; }
.check-list li { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 15px; color: var(--ink); }
.check-list li::before { content: "✓"; width: 24px; height: 24px; flex: none; display: grid; place-items: center; background: var(--teal); color: #fff; border-radius: 50%; font-size: 13px; font-weight: 800; }

.voice-demo { display: flex; justify-content: center; }
.voice-bubble {
  max-width: 340px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 28px; box-shadow: var(--shadow-md); position: relative;
}
.voice-bubble::after { content: ""; position: absolute; bottom: -14px; left: 48px; width: 0; height: 0; border: 14px solid transparent; border-top-color: #fff; border-bottom: 0; }
.voice-bubble p { font-size: 17px; line-height: 1.5; margin-bottom: 14px; }
.voice-bubble em { font-style: italic; color: var(--coral-dark); }
.voice-bubble small { color: var(--muted); font-weight: 600; }
.wave { display: flex; align-items: center; gap: 3px; height: 26px; margin-bottom: 12px; }
.wave i { width: 4px; border-radius: 2px; background: var(--teal); animation: wave 1s ease-in-out infinite; }
.wave i:nth-child(1) { height: 8px; }
.wave i:nth-child(2) { height: 18px; animation-delay: .1s; }
.wave i:nth-child(3) { height: 26px; animation-delay: .2s; }
.wave i:nth-child(4) { height: 18px; animation-delay: .3s; }
.wave i:nth-child(5) { height: 8px; animation-delay: .4s; }
@keyframes wave { 0%,100% { transform: scaleY(.5); } 50% { transform: scaleY(1); } }

/* ---------- Familias ---------- */
.feat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.feat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-sm); }
.feat-icon { font-size: 30px; display: inline-block; margin-bottom: 12px; }
.feat h3 { font-family: var(--font-head); font-weight: 700; font-size: 18px; margin-bottom: 8px; }
.feat p { font-size: 14px; color: var(--ink-soft); }

/* ---------- Colegios ---------- */
.schools { background: var(--ink); color: #fff; }
.schools-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.schools .kicker { background: rgba(255,255,255,.12); color: var(--gold); }
.schools h2 { font-family: var(--font-head); font-weight: 800; font-size: clamp(26px, 3.6vw, 38px); line-height: 1.12; letter-spacing: -.5px; margin-bottom: 16px; }
.schools-copy > p { color: #c6ccd9; font-size: 17px; margin-bottom: 20px; }
.schools .check-list li { color: #fff; }
.schools .check-list li::before { background: var(--teal); }
.schools-copy .btn { margin-top: 24px; }
.schools-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.stat { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius); padding: 26px 20px; text-align: center; }
.stat span { font-family: var(--font-head); font-weight: 800; font-size: 40px; color: var(--gold); line-height: 1; }
.stat p { font-size: 13px; color: #c6ccd9; margin-top: 8px; }

/* ---------- Precios ---------- */
.pricing { background: var(--bg-soft); }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.plan {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 34px 30px; display: flex; flex-direction: column; box-shadow: var(--shadow-sm);
}
.plan-featured { border: 2px solid var(--coral); box-shadow: var(--shadow-lg); position: relative; }
.plan-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--coral); color: #fff; font-size: 12px; font-weight: 700;
  padding: 6px 16px; border-radius: 999px; white-space: nowrap;
}
.plan-name { font-family: var(--font-head); font-weight: 700; font-size: 20px; }
.plan-desc { color: var(--muted); font-size: 14px; margin: 4px 0 20px; }
.plan-price { display: flex; align-items: baseline; gap: 2px; margin-bottom: 4px; }
.plan-price .currency { font-size: 22px; font-weight: 700; color: var(--ink-soft); }
.plan-price .amount { font-family: var(--font-head); font-weight: 800; font-size: 52px; line-height: 1; letter-spacing: -1px; }
.plan-price .period { font-size: 15px; color: var(--muted); font-weight: 600; }
.plan-price--consultar .amount { font-size: 30px; letter-spacing: -.5px; }
.plan-note { font-size: 13px; color: var(--muted); margin-bottom: 24px; }
.plan-note s { color: var(--muted); opacity: .7; }
.plan-list { display: grid; gap: 12px; margin-bottom: 28px; flex: 1; }
.plan-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 15px; color: var(--ink-soft); }
.plan-list li::before { content: "✓"; flex: none; width: 22px; height: 22px; display: grid; place-items: center; background: var(--teal-soft); color: var(--teal-dark); border-radius: 50%; font-size: 12px; font-weight: 800; margin-top: 2px; }
.plan-featured .plan-list li::before { background: var(--coral-soft); color: var(--coral-dark); }
.plan-schools .plan-list li::before { background: var(--gold-soft); color: #b98a00; }

.pricing-footnote { text-align: center; color: var(--muted); font-size: 13px; margin-top: 28px; }

/* ---------- Testimonios ---------- */
.quotes-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.quote { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-sm); }
.quote .stars { color: var(--gold); letter-spacing: 2px; margin-bottom: 12px; }
.quote blockquote { font-size: 16px; color: var(--ink); font-weight: 500; line-height: 1.55; margin-bottom: 16px; }
.quote figcaption { font-size: 14px; color: var(--muted); }
.quote figcaption strong { color: var(--ink); }

/* ---------- FAQ ---------- */
.faq-container { max-width: 760px; }
.faq-list { display: grid; gap: 14px; }
.faq-item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; }
.faq-item summary {
  cursor: pointer; list-style: none; padding: 20px 22px; font-weight: 700; font-size: 16px;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 22px; color: var(--coral); font-weight: 700; transition: transform .2s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding: 0 22px 20px; color: var(--ink-soft); font-size: 15px; }
.faq-item p a { color: var(--coral-dark); font-weight: 600; }

/* ---------- CTA final ---------- */
.final-cta { padding-top: 0; }
.final-box {
  background: linear-gradient(135deg, var(--coral), #ff8e54 60%, var(--gold));
  border-radius: var(--radius-lg); padding: 64px 40px; text-align: center; color: #fff;
  box-shadow: var(--shadow-lg);
}
.final-box h2 { font-family: var(--font-head); font-weight: 800; font-size: clamp(26px, 4vw, 38px); letter-spacing: -.5px; margin-bottom: 10px; }
.final-box p { font-size: 17px; opacity: .95; margin-bottom: 28px; }
.final-box .btn + .btn { margin-left: 12px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: #c6ccd9; padding: 60px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 40px; }
.footer-brand .brand-text { color: #fff; }
.footer-brand p { font-size: 14px; margin-top: 12px; max-width: 260px; }
.footer-col h4 { color: #fff; font-size: 14px; font-weight: 700; margin-bottom: 14px; }
.footer-col a { display: block; font-size: 14px; margin-bottom: 10px; transition: color .15s; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 22px; text-align: center; }
.footer-bottom p { font-size: 13px; color: #8b93a3; }

/* ---------- Animaciones de aparición ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; margin-bottom: 8px; }
  .problem-grid, .steps, .units-grid, .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .dyn-grid { grid-template-columns: repeat(3, 1fr); }
  .voice-grid, .schools-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 460px; margin-left: auto; margin-right: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .quotes-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav-links {
    position: absolute; top: 72px; left: 0; right: 0;
    background: var(--bg); flex-direction: column; gap: 0;
    border-bottom: 1px solid var(--line); padding: 8px 24px 16px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav-links a:last-child { border-bottom: 0; }
  .nav-toggle { display: flex; }
  .hide-mobile { display: none; }

  .hero { padding-top: 48px; }
  .hero h1 { font-size: 34px; }
  .float-chip { display: none; }
  .trust-bar { border-radius: var(--radius); gap: 8px; }
  .section { padding: 64px 0; }
  .problem-grid, .steps, .units-grid, .feat-grid { grid-template-columns: 1fr; }
  .dyn-grid { grid-template-columns: repeat(2, 1fr); }
  .schools-stats { grid-template-columns: 1fr; }
  .hero-cta .btn, .final-box .btn { width: 100%; }
  .final-box .btn + .btn { margin-left: 0; margin-top: 10px; }
}