:root {
  --bg: #ffffff; --card: #ffffff; --ink: #252a21; --muted: #5f6153; --line: #e6e6e0;
  --verde: #9cc000; --verde-ink: #252a21; --verde-texto: #5a7400; --dark: #252a21; --dark2: #333a2d; --dark-line: #454d3e; --arena: #d2c1a5;
}
* { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; }
body { background: var(--bg); color: var(--ink); font: 400 17px/1.55 Inter, system-ui, -apple-system, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 16px; }

/* cabecera */
.top { display: flex; align-items: center; justify-content: space-between; background: var(--card); border-radius: 22px; padding: 14px 16px 14px 22px; box-shadow: 0 6px 24px rgba(0,0,0,.05); }
.logo { display: flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: -.01em; font-size: 15px; text-decoration: none; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; background: var(--verde); color: var(--verde-ink); border: 0; border-radius: 999px; padding: 15px 28px; font: 700 16px/1 Inter, sans-serif; text-decoration: none; cursor: pointer; transition: transform .15s, filter .15s; }
.btn:hover { filter: brightness(.96); transform: translateY(-1px); }
.btn.sm { padding: 12px 20px; font-size: 14px; }
.btn[disabled] { opacity: .6; cursor: wait; }

/* portada */
.hero { max-width: 760px; margin: clamp(48px, 9vw, 110px) auto 0; text-align: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font: 600 13px/1.3 Inter, sans-serif; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
h1 { font-size: clamp(38px, 7vw, 68px); line-height: 1.04; letter-spacing: -.035em; font-weight: 800; margin: 18px 0 22px; }
.sub { color: var(--muted); font-size: clamp(17px, 2.2vw, 20px); max-width: 640px; margin: 0 auto; }
.sub b { color: var(--ink); font-weight: 600; }
.hero .btn { margin-top: 32px; padding: 18px 34px; font-size: 17px; }
.ticks { list-style: none; padding: 0; margin: 30px auto 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 28px; color: var(--muted); font-size: 15px; }
.ticks li { display: flex; align-items: center; gap: 8px; }
.ticks svg { width: 16px; height: 16px; stroke: var(--verde-texto); flex: none; }
.ticks b { color: var(--ink); }

/* qué recibes */
.get { max-width: 900px; margin: clamp(56px, 9vw, 100px) auto 0; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.get .c { background: var(--card); border: 1px solid var(--line); border-radius: 22px; padding: 26px; }
.get .n { font: 700 13px/1 Inter; letter-spacing: .08em; color: var(--verde-texto); }
.get h3 { font-size: 20px; letter-spacing: -.02em; margin: 12px 0 8px; }
.get p { color: var(--muted); font-size: 15px; }
.foot { text-align: center; color: var(--muted); font-size: 13px; margin: 72px 0 24px; }

/* formulario por pasos */
.modal { position: fixed; inset: 0; background: rgba(20,20,20,.55); backdrop-filter: blur(4px); display: none; align-items: center; justify-content: center; padding: 16px; z-index: 20; }
.modal.on { display: flex; }
.box { background: var(--card); border-radius: 26px; width: 100%; max-width: 520px; padding: clamp(24px, 5vw, 40px); position: relative; }
.close { position: absolute; top: 14px; right: 14px; width: 40px; height: 40px; border-radius: 50%; border: 0; background: var(--bg); font-size: 22px; cursor: pointer; }
.bar { height: 4px; background: var(--line); border-radius: 4px; margin: 6px 48px 26px 0; overflow: hidden; }
.bar i { display: block; height: 100%; width: 33%; background: var(--verde); transition: width .25s; }
.step { display: none; }
.step.on { display: block; }
.step label.q { display: block; font-size: 22px; font-weight: 700; letter-spacing: -.02em; line-height: 1.25; margin-bottom: 18px; }
input[type=email], input[type=text] { width: 100%; font: 400 17px Inter, sans-serif; padding: 17px 20px; border-radius: 16px; border: 1.5px solid var(--line); background: #fbf9f3; color: var(--ink); outline: none; }
input:focus { border-color: var(--verde); background: #fff; }
.opts { display: grid; gap: 10px; }
.opt { display: flex; gap: 12px; align-items: center; padding: 15px 18px; border: 1.5px solid var(--line); border-radius: 16px; cursor: pointer; font-size: 16px; }
.opt:has(input:checked) { border-color: var(--verde); background: #f4f8df; }
.opt input { accent-color: var(--verde-texto); width: 18px; height: 18px; flex: none; }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; color: var(--muted); margin-top: 18px; line-height: 1.45; }
.consent input { margin-top: 2px; accent-color: var(--verde-texto); width: 16px; height: 16px; flex: none; }
.nav { display: flex; align-items: center; justify-content: space-between; margin-top: 22px; gap: 12px; }
.back { background: none; border: 0; color: var(--muted); font: 500 15px Inter; cursor: pointer; padding: 8px 0; }
.err { color: #b42318; font-size: 14px; margin-top: 10px; min-height: 1em; }

/* página de gracias */
.thanks { display: none; }
body.done .landing { display: none; }
body.done .thanks { display: block; }
.tgrid { display: grid; gap: 20px; grid-template-columns: 1fr 1fr; margin-top: clamp(28px, 6vw, 64px); align-items: start; }
.panel { border-radius: 28px; padding: clamp(26px, 5vw, 48px); }
.light { background: var(--card); border: 1px solid var(--line); }
.darkp { background: var(--dark); color: #f5f1e7; }
.label { font: 600 13px/1.3 Inter; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.darkp .label { color: var(--verde); display: flex; align-items: center; gap: 8px; }
.panel h2 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -.03em; line-height: 1.1; margin: 10px 0 0; font-weight: 800; }
.items { margin-top: 30px; border-top: 2px solid var(--ink); }
.item { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.item:last-child { border-bottom: 0; }
.item h3 { font-size: 19px; letter-spacing: -.015em; line-height: 1.3; }
.item p { color: var(--muted); font-size: 15px; margin-top: 4px; }
.ic { width: 60px; height: 60px; border-radius: 50%; display: grid; place-items: center; flex: none; background: var(--verde); text-decoration: none; }
.ic.mail { background: none; border: 1.5px solid var(--line); }
.ic svg { width: 22px; height: 22px; stroke: var(--verde-ink); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.darkp p.t { color: #d2c1a5; font-size: 17px; margin: 16px 0 28px; }
.darkp .btn { width: 100%; padding: 19px; font-size: 17px; }
.darkp .note { color: #d2c1a5; font-size: 13px; margin-top: 14px; }
.hello { font-size: 15px; color: var(--muted); margin-top: clamp(28px, 6vw, 56px); }
.hello b { color: var(--ink); }

@media (max-width: 820px) { .tgrid { grid-template-columns: 1fr; } }
@media (max-width: 480px) { .top .btn { display: none; } }
.step .q { display: block; font-size: 22px; font-weight: 700; letter-spacing: -.02em; line-height: 1.25; margin-bottom: 18px; }
button.ic { border: 0; cursor: pointer; }
.copied { color: var(--verde-texto); font-size: 14px; font-weight: 600; min-height: 1em; margin-top: 8px; }

/* Página general de la serie */
.eps-h { text-align: center; font-size: clamp(26px, 4vw, 36px); letter-spacing: -.03em; margin: clamp(56px, 9vw, 100px) 0 8px; }
.eps-sub { text-align: center; color: var(--muted); margin-bottom: 28px; }
.eps { max-width: 1000px; margin: 0 auto; display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.ep { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line); border-radius: 22px; padding: 22px 24px; text-decoration: none; transition: border-color .15s, transform .15s; }
.ep:hover { border-color: var(--verde); transform: translateY(-2px); }
.ep .n { font: 700 12px/1.4 Inter; letter-spacing: .08em; text-transform: uppercase; color: var(--verde-texto); }
.ep h3 { font-size: 18px; line-height: 1.3; letter-spacing: -.015em; margin: 10px 0 14px; }
.ep .go { margin-top: auto; font-size: 14px; font-weight: 600; color: var(--muted); }
.ep:hover .go { color: var(--ink); }
.ic.dl { text-decoration: none; }

/* Móvil: título algo más pequeño */
@media (max-width: 480px) {
  h1 { font-size: 34px; }
}

.ic.mail svg { stroke: var(--ink); }
.darkp .label { color: var(--verde); }

/* Logo en espiral: respira despacio, del centro hacia fuera */
.logo .espiral { width: 34px; height: 34px; flex: none; }
.espiral { display: block; overflow: visible; color: var(--verde); fill: none; stroke: currentColor; stroke-width: 5.4; stroke-linecap: round; stroke-linejoin: round; }
.espiral .s3 { fill: currentColor; stroke: none; }
.espiral > * { transform-box: view-box; transform-origin: 50% 50%; animation: respira 6s ease-in-out infinite; }
.espiral .s2 { animation-delay: .4s; }
.espiral .s3 { animation-delay: .8s; }
@keyframes respira { 0%, 100% { transform: scale(.93); opacity: .72; } 45% { transform: scale(1.05); opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .espiral > * { animation: none; } }
.sello { display: block; width: clamp(88px, 14vw, 116px); margin: 0 auto 22px; }

/* Fondo blanco: la cabecera y el botón de cerrar necesitan su propio contorno */
.top { border: 1px solid var(--line); box-shadow: none; }
.close { background: #f4f4ef; }
input[type=email], input[type=text] { background: #ffffff; }