/* Sprint English — Lección 0 (leccion0.sprint-english.com). Tokens del Manual de marca v1.0 */
:root {
  --navy: #0B1F4B; --white: #FFFFFF;
  --electric: #1A5EFF; --sky: #4F8DFB; --electric-dark: #1C4FD6;
  --petrol: #1B5377; --steel: #2D7E9F; --night: #112D40;
  --ink: #14171C; --ink-dim: #5B6472; --line: #DDE2EA;
  --bg-cold: #F4F6FB; --bg-warm: #F1EDED; --celeste: #D7E8F4; --blue-soft: #E6EDFF;
  --good: #15803D; --good-bg: #DCFCE7; --improve: #B45309; --improve-bg: #FEF3C7; --error: #EF5350; --error-bg: #FEE2E2;
  --warn-bg: #FBF1B4; --warn-ink: #B19400;
  --radius: 16px; --max: 900px;
  --grad: linear-gradient(45deg, #4F8DFB 0%, #1C4FD6 100%);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; color: var(--ink); background: var(--bg-cold);
  font-family: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px; line-height: 1.6;
}
a { color: var(--electric); }
h1, h2, h3 { color: var(--navy); line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.015em; font-weight: 700; }
h1 { font-size: clamp(1.9rem, 5vw, 2.8rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.eyebrow { text-transform: uppercase; letter-spacing: .14em; font-size: .76rem; font-weight: 700; color: var(--electric); margin-bottom: 8px; }
.lead { font-size: 1.15rem; color: var(--ink-dim); }
.stripe { height: 6px; background: var(--grad); }
.hidden { display: none !important; }

/* Header + progreso */
header.site { background: #fff; border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand img { height: 48px; width: auto; display: block; }
.points { background: var(--blue-soft); color: var(--electric); font-weight: 700; padding: 6px 14px; border-radius: 999px; font-size: .9rem; }
.progress { background: #fff; border-bottom: 1px solid var(--line); }
.progress .wrap { display: flex; gap: 6px; padding: 12px 20px; }
.progress .p { flex: 1; height: 6px; border-radius: 999px; background: var(--line); position: relative; }
.progress .p.done { background: var(--grad); }
.progress .p.current { background: var(--sky); }
.steps-labels { display: flex; justify-content: space-between; font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-dim); padding: 0 20px 10px; max-width: var(--max); margin: 0 auto; }
.steps-labels span.on { color: var(--electric); font-weight: 700; }

/* Secciones / tarjetas (manual: blanco, borde #DDE2EA, 16 px, sombra suave) */
main { padding: 36px 0 60px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: 0 2px 10px rgba(11,31,75,.03); margin-bottom: 20px; }
.card.navy { background: var(--navy); color: #fff; border-color: var(--navy); }
.card.navy h1, .card.navy h2, .card.navy h3 { color: #fff; }
.card.navy .lead { color: #c9d3e6; }
.card.navy .eyebrow { color: var(--sky); }
.card.warm { background: var(--bg-warm); border-color: #e6dede; }
.card.celeste { background: var(--celeste); border-color: #c3d9ea; }

/* Botones (manual: azul eléctrico, semibold, 10 px) */
.btn { display: inline-block; padding: 13px 24px; border-radius: 10px; font-weight: 600; text-decoration: none; background: var(--electric); color: #fff; border: 2px solid var(--electric); cursor: pointer; font-size: 1rem; font-family: inherit; transition: transform .1s, background .15s; }
.btn:hover { background: var(--electric-dark); border-color: var(--electric-dark); transform: translateY(-1px); }
.btn:disabled { opacity: .55; cursor: default; transform: none; }
.btn.ghost { background: transparent; color: var(--electric); }
.btn.ghost:hover { background: var(--blue-soft); }
.btn.big { font-size: 1.1rem; padding: 16px 30px; }
.btn.small { padding: 8px 14px; font-size: .9rem; }
.card.navy .btn.ghost { color: #fff; border-color: rgba(255,255,255,.55); }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-top: 20px; }
.cta-row.centered { justify-content: center; }
.nav-row { display: flex; justify-content: space-between; gap: 12px; margin-top: 26px; flex-wrap: wrap; }
.note { font-size: .9rem; color: var(--ink-dim); }

/* Formulario correo */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field label { font-size: .9rem; font-weight: 600; color: var(--navy); }
input[type="text"], input[type="email"] {
  background: #EEF1F6; border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; font-size: 1rem; font-family: inherit; color: var(--ink); width: 100%;
}
input:focus { outline: none; border-color: var(--electric); background: #fff; }
.msg { font-size: .92rem; margin-top: 8px; }
.msg.error { color: var(--error); }
.msg.ok { color: var(--good); }

/* Portada */
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: center; }
.hero-list { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 10px; }
.hero-list li { display: flex; gap: 10px; align-items: flex-start; }
.hero-list .dot { width: 30px; height: 30px; border-radius: 50%; background: var(--grad); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: .85rem; flex-shrink: 0; }
.mini-stats { display: flex; gap: 22px; margin-top: 18px; flex-wrap: wrap; }
.mini-stats strong { display: block; font-size: 1.4rem; color: var(--navy); line-height: 1.1; }
.mini-stats span { font-size: .8rem; color: var(--ink-dim); }

/* Input: video + guion */
.video-frame { position: relative; width: 100%; aspect-ratio: 16 / 9; border-radius: 14px; overflow: hidden; background: var(--navy); box-shadow: 0 16px 40px rgba(11,31,75,.18); }
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video-placeholder { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; color: #fff; text-align: center; padding: 20px; }
.video-placeholder .play { width: 72px; height: 72px; border-radius: 50%; background: var(--grad); display: flex; align-items: center; justify-content: center; font-size: 1.8rem; margin-bottom: 14px; }
.scene { display: grid; grid-template-columns: 44px 1fr; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.scene:last-child { border-bottom: 0; }
.scene .n { width: 36px; height: 36px; border-radius: 50%; background: var(--blue-soft); color: var(--electric); font-weight: 700; display: flex; align-items: center; justify-content: center; font-size: .85rem; }
.scene .en { font-size: 1.1rem; color: var(--navy); font-weight: 500; line-height: 1.5; }
.scene .es { font-size: .92rem; color: var(--ink-dim); margin-top: 4px; }
.scene .play-line { background: none; border: 1px solid var(--line); border-radius: 8px; padding: 3px 9px; cursor: pointer; font-size: .85rem; color: var(--electric); margin-top: 6px; font-family: inherit; }
.scene .play-line:hover { background: var(--blue-soft); }
.toggle-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 8px; }
.chip { display: inline-block; padding: 4px 12px; border-radius: 999px; font-size: .8rem; font-weight: 700; background: var(--blue-soft); color: var(--electric); }

/* Coach clarifications (anatomía de los PDF del manual) */
.coach-title { color: var(--petrol); }
.coach-intro { color: var(--steel); font-size: 1.05rem; }
.coach-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 18px 0; }
.coach-card { background: var(--bg-warm); border-radius: 6px; padding: 16px 18px; }
.coach-card h3 { font-size: 1.05rem; margin-bottom: 6px; color: var(--navy); }
.coach-card p { margin: 0; font-size: .95rem; }
.coach-card .ex { display: block; margin-top: 6px; font-style: italic; color: var(--ink-dim); }
.callout { border-radius: 8px; padding: 12px 16px; margin: 12px 0; font-size: .95rem; }
.callout.nota { background: var(--celeste); }
.callout.aviso { background: var(--warn-bg); }
.callout.tip { border-left: 4px solid var(--night); background: #fff; padding-left: 14px; }
.callout strong { color: var(--navy); }
.pron-pair { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.pron-pair .en { font-weight: 700; color: var(--navy); }
.pron-pair .es { color: var(--electric); font-weight: 600; }

/* Output (réplica de Coach) */
.challenge-text { font-size: 1.15rem; line-height: 2; color: var(--navy); }
.blank { display: inline-block; min-width: 130px; border: 0; border-bottom: 2px solid var(--electric); background: var(--blue-soft); border-radius: 6px 6px 0 0; padding: 2px 10px; font: inherit; font-size: 1rem; color: var(--ink); margin: 0 4px; }
.blank:focus { outline: none; background: #fff; }
.blank.filled { background: #fff; }
.hint { font-size: .85rem; color: var(--ink-dim); }
.feedback-block { border-radius: 12px; padding: 16px 18px; margin-bottom: 14px; }
.feedback-block.good { background: var(--good-bg); }
.feedback-block.improve { background: var(--improve-bg); }
.feedback-block.plain { background: var(--bg-cold); }
.feedback-block h3 { margin-bottom: 8px; font-size: 1.05rem; }
.feedback-block ul { margin: 0; padding-left: 20px; }
.final-text { font-size: 1.1rem; line-height: 1.8; background: var(--blue-soft); border-radius: 10px; padding: 14px 16px; color: var(--navy); }
.pron-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.pron-list li { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.pron-list .en-line { display: flex; gap: 10px; align-items: flex-start; font-size: 1.05rem; color: var(--navy); font-weight: 500; }
.pron-list .es-line { color: var(--electric); font-weight: 600; margin-top: 4px; padding-left: 44px; }
.line-play { background: var(--blue-soft); border: 0; border-radius: 8px; padding: 2px 8px; cursor: pointer; font-size: .95rem; flex-shrink: 0; }
.mic-wrap { text-align: center; padding: 10px 0 4px; }
.mic-btn { width: 84px; height: 84px; border-radius: 50%; border: 0; background: var(--grad); color: #fff; font-size: 2rem; cursor: pointer; box-shadow: 0 10px 30px rgba(26,94,255,.35); transition: transform .1s; }
.mic-btn:hover { transform: scale(1.04); }
.mic-btn.rec { background: var(--error); animation: pulse 1.2s infinite; box-shadow: 0 10px 30px rgba(239,83,80,.4); }
@keyframes pulse { 0%{transform:scale(1)} 50%{transform:scale(1.07)} 100%{transform:scale(1)} }
.mic-status { margin-top: 10px; color: var(--ink-dim); font-size: .95rem; }
.transcript { background: var(--bg-cold); border-radius: 10px; padding: 12px 14px; font-style: italic; color: var(--ink); }
.score { display: flex; gap: 6px; font-size: 1.6rem; margin: 6px 0 10px; }
.tag { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: .82rem; font-weight: 700; margin: 2px 4px 2px 0; }
.tag.ok { background: var(--good-bg); color: var(--good); }
.tag.miss { background: var(--error-bg); color: #b91c1c; }

/* Quiz */
.q { border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; margin-bottom: 12px; background: #fff; }
.q h3 { font-size: 1.05rem; margin-bottom: 10px; }
.q .opt { display: block; width: 100%; text-align: left; background: var(--bg-cold); border: 2px solid transparent; border-radius: 10px; padding: 10px 14px; margin-bottom: 8px; cursor: pointer; font: inherit; color: var(--ink); }
.q .opt:hover { border-color: var(--sky); }
.q .opt.sel { border-color: var(--electric); background: var(--blue-soft); }
.q .opt.right { border-color: var(--good); background: var(--good-bg); }
.q .opt.wrong { border-color: var(--error); background: var(--error-bg); }
.q .why { font-size: .9rem; color: var(--ink-dim); margin: 8px 0 0; padding: 10px 12px; border-left: 3px solid var(--sky); background: var(--bg-cold); border-radius: 0 8px 8px 0; }
.q .q-label { font-size: .72rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--electric); margin-bottom: 6px; }
.q .q-label span { color: var(--ink-dim); font-weight: 500; letter-spacing: .08em; }
.ab .opt { display: flex; align-items: center; gap: 12px; font-weight: 600; }
.ab .opt .k { flex: 0 0 30px; height: 30px; border-radius: 50%; background: var(--electric); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: .85rem; font-weight: 800; }
.ab .opt.right .k { background: var(--good); }
.ab .opt.wrong .k { background: var(--error); }
.ab .opt.wrong span:last-child { text-decoration: line-through; color: var(--ink-dim); }
.result-big { font-size: 2.6rem; font-weight: 700; color: var(--navy); line-height: 1; }

/* Cierre */
.summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 18px 0; }
.summary div { background: rgba(255,255,255,.08); border-radius: 12px; padding: 14px; text-align: center; }
.summary strong { display: block; font-size: 1.6rem; }
.summary span { font-size: .85rem; color: #c9d3e6; }
.keep-line { text-align: center; color: var(--sky); font-weight: 700; margin-top: 18px; }

footer.site { text-align: center; color: var(--ink-dim); font-size: .85rem; padding: 20px; }
footer.site a { color: var(--electric); text-decoration: none; }

@media (max-width: 760px) {
  .hero-grid, .coach-grid, .summary { grid-template-columns: 1fr; }
  .card { padding: 20px; }
  .steps-labels { font-size: .62rem; }
  .blank { min-width: 100px; }
  .pron-list .es-line { padding-left: 0; }
}
.card.navy .card h3, .card.navy .card p { color: var(--navy); }
.card.navy .card .note { color: var(--ink-dim); }

/* Las tres fases del video ("hackear tu mente") */
.hack-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 16px 0 14px; }
.hack { background: var(--bg-cold); border: 1px solid var(--line); border-radius: 12px; padding: 14px; }
.hack-icon { width: 38px; height: 38px; border-radius: 50%; background: var(--grad); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; margin-bottom: 8px; }
.hack strong { display: block; color: var(--navy); font-size: .95rem; margin-bottom: 4px; }
.hack p { margin: 0; font-size: .88rem; color: var(--ink-dim); }
@media (max-width: 760px) { .hack-grid { grid-template-columns: 1fr; } }

/* Review Sí / No */
.yn { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.yn .opt { margin-bottom: 0; text-align: center; font-weight: 600; }
.yn .opt.yes.sel, .yn .opt.right { border-color: var(--good); background: var(--good-bg); color: var(--good); }
.yn .opt.no.sel { border-color: var(--improve); background: var(--improve-bg); color: var(--improve); }
.yn .opt.wrong { border-color: var(--improve); background: var(--improve-bg); color: var(--improve); }
.q .why { color: var(--ink); }
@media (max-width: 480px) { .yn { grid-template-columns: 1fr; } }

/* Ensayo tipo créditos + velocidad del coach (igual que en Coach) */
.rehearsal { margin-top: 14px; }
.rehearsal-stage { position: relative; height: 260px; overflow: hidden; border-radius: 16px; background: var(--navy); color: #fff; }
.rehearsal-stage::before, .rehearsal-stage::after { content: ""; position: absolute; left: 0; right: 0; height: 56px; z-index: 2; pointer-events: none; }
.rehearsal-stage::before { top: 0; background: linear-gradient(#0b1f4b, rgba(11,31,75,0)); }
.rehearsal-stage::after { bottom: 0; background: linear-gradient(rgba(11,31,75,0), #0b1f4b); }
.rehearsal-track { padding: 0 22px; font-size: 24px; line-height: 1.7; font-weight: 600; will-change: transform; transition: transform .6s ease, opacity .3s; }
.rehearsal-track .rs { color: rgba(255,255,255,.38); transition: color .25s; }
.rehearsal-track .rs.on { color: #fff; }
.rehearsal-center { position: absolute; inset: 0; z-index: 3; display: flex; align-items: center; justify-content: center; font-size: 96px; font-weight: 800; color: var(--sky); text-align: center; padding: 0 20px; }
.rehearsal-center[hidden] { display: none; }
.rehearsal-center.small { font-size: 34px; color: #fff; }
/* Cuenta regresiva: 3, 2, 1 en azul cielo subiendo hasta blanco; cierre en color cálido, nunca verde. */
.rehearsal-center.count-3 { color: #4f8dfb; }
.rehearsal-center.count-2 { color: #8fb6ff; }
.rehearsal-center.count-1 { color: #ffffff; }
.rehearsal-center.cue { font-size: 72px; line-height: 1.05; }
.rehearsal-center.cue-sky { color: #4f8dfb; }
.rehearsal-center.cue-amber { color: #f59e0b; }
.rehearsal-center.cue-coral { color: #fb7185; }
.rehearsal-center.cue-yellow { color: #facc15; }
.rehearsal-status { margin-top: 10px; font-size: 15px; color: var(--ink-dim); line-height: 1.5; }
.rehearsal-status strong { color: var(--ink); }
.small-inline { padding: 8px 12px; font-size: 14px; margin: 6px 6px 0 0; }
.speed-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 12px; }
.speed-label { font-size: 14px; color: var(--ink-dim); }
.speed-levels { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; background: #fff; }
.speed-btn { background: transparent; border: 0; padding: 8px 14px; font-size: 14px; font-weight: 700; color: var(--ink-dim); cursor: pointer; font-family: inherit; }
.speed-btn + .speed-btn { border-left: 1px solid var(--line); }
.speed-btn.on { background: var(--electric); color: #fff; }
@media (max-width: 520px) { .rehearsal-stage { height: 230px; } .rehearsal-track { font-size: 21px; padding: 0 16px; } .rehearsal-center { font-size: 76px; } .rehearsal-center.cue { font-size: 54px; } }

/* Invitación discreta a Talk (al final del reto) */
.talk-invite { text-align: center; padding: 6px 0 18px; }
.talk-invite p { margin: 0 0 10px; color: var(--ink-dim); font-size: .95rem; }

/* Recordatorio de Talk en el cierre */
.talk-remind { display: grid; grid-template-columns: 1.1fr 1fr; gap: 24px; align-items: center; }
.talk-remind h3 { margin: 6px 0 10px; }
.talk-remind p { color: var(--ink-dim); margin: 0 0 16px; }
.talk-remind-img { width: 100%; border-radius: 14px; box-shadow: 0 10px 30px rgba(11,31,75,.18); }
@media (max-width: 720px) { .talk-remind { grid-template-columns: 1fr; } .talk-remind-img { order: -1; } }

/* ---------- Teleprompter al grabar ---------- */
.prompter { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; margin: 6px 0 10px; scroll-margin-top: 12px; }
.prompter[hidden] { display: none; }
.prompter-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 8px; }
.prompter-title { font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-dim); font-weight: 700; }
.prompter-guide-btn { background: var(--blue-soft); color: var(--electric); border: 0; border-radius: 999px; padding: 6px 12px; font-size: .85rem; font-weight: 700; cursor: pointer; }
.prompter-line { margin: 0 0 12px; }
.prompter-line:last-child { margin-bottom: 0; }
.prompter-en { display: block; font-size: 1.3rem; line-height: 1.5; color: var(--navy); font-weight: 500; }
.prompter-es { display: none; margin-top: 3px; font-size: .98rem; line-height: 1.45; color: var(--electric); font-weight: 600; }
.prompter.guide-on .prompter-es { display: block; }
body.prompter-active .mic-dock { position: sticky; bottom: 0; z-index: 20; padding: 8px 0 12px; background: linear-gradient(to top, #fff 70%, rgba(255,255,255,0)); border-radius: 0 0 14px 14px; }
body.prompter-active .mic-btn { width: 68px; height: 68px; font-size: 1.6rem; }

/* ---------- Ruleta de premio (paso 5) ---------- */
.card.prize { text-align: center; border: 2px solid var(--electric); }
.wheel-wrap { position: relative; width: min(300px, 80vw); margin: 18px auto 20px; }
.wheel { width: 100%; height: auto; display: block; transition: transform 4.2s cubic-bezier(.12,.72,.08,1); }
.wheel-pointer { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); font-size: 30px; color: #F7DE13; text-shadow: 0 2px 4px rgba(0,0,0,.35); z-index: 2; line-height: 1; }
.prize-form, .coupon-box { max-width: 420px; margin: 18px auto 0; text-align: left; }
.prize-win { font-size: 1.25rem; font-weight: 700; color: var(--navy); text-align: center; margin: 0 0 8px; }
.coupon-box { text-align: center; }
.coupon-code { font-size: 2rem; font-weight: 700; letter-spacing: .12em; color: var(--navy); background: #FFF8CC; border: 2px dashed #E0B800; border-radius: 12px; padding: 12px 18px; margin: 10px auto 12px; display: inline-block; user-select: all; }

/* Aceptación de términos y tratamiento de datos */
.consent { display: flex; gap: 10px; align-items: flex-start; margin: 4px 0 14px; font-size: .88rem; line-height: 1.4; color: var(--navy); cursor: pointer; text-align: left; }
.consent input { width: 18px; height: 18px; margin-top: 2px; flex: 0 0 auto; accent-color: var(--navy); }
.consent a { color: inherit; font-weight: 600; text-decoration: underline; }