/*
  Dirección visual: "libro de cuentas / caja fuerte privada".
  Tema oscuro único y deliberado (tinta de noche + latón), no una omisión:
  encaja con el posicionamiento de banca privada / bóveda de datos.
  Tipografía de sistema en todo el sitio a propósito: cero peticiones de red,
  cero coste, carga instantánea (encaja con el requisito de hosting barato).
*/

:root {
  --ink: #0d1826;
  --ink-2: #142338;
  --ink-3: #1e3149;
  --hairline: #24374f;
  --paper: #f3ede0;
  --text: #ecf0f6;
  --muted: #93a0b6;
  --gold: #c6a15b;
  --gold-strong: #dcb975;
  --gold-ink: #241a06;
  --moss: #7fae97;
  --rose: #c98a7a;
  --radius: 14px;
  --max: 1120px;

  --font-display: Georgia, "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", "Roboto Mono", Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background-image: repeating-linear-gradient(
    to bottom, rgba(243,237,224,0.018) 0px, rgba(243,237,224,0.018) 1px,
    transparent 1px, transparent 34px
  );
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: 720px; }

h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; margin: 0 0 16px; font-weight: 400; text-wrap: balance; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.3rem); text-align: left; }
h3 { font-size: 1.2rem; margin-bottom: 8px; }
p { margin: 0 0 12px; color: var(--text); max-width: 65ch; }
.lead { font-size: 1.08rem; color: var(--muted); }
.muted { color: var(--muted); }
.center { text-align: center; margin-left: auto; margin-right: auto; }
.small { font-size: 0.85rem; }
.accent { color: var(--gold-strong); }
strong { color: var(--paper); }
a { color: var(--gold-strong); }

.figure { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

section.section { padding: 88px 0; }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 14px 26px;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible { outline: 2px solid var(--gold-strong); outline-offset: 2px; }
.btn-primary { background: var(--gold); color: var(--gold-ink); box-shadow: 0 10px 26px rgba(198,161,91,.22); }
.btn-primary:hover { background: var(--gold-strong); }
.btn-secondary { background: transparent; color: var(--text); border-color: var(--hairline); }
.btn-secondary:hover { border-color: var(--gold); }
.btn-ghost { background: transparent; color: var(--text); text-decoration: underline; padding: 14px 8px; }
.btn-small { padding: 10px 18px; font-size: 0.9rem; }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(13,24,38,0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--hairline);
}
.header-inner { display: flex; align-items: center; gap: 24px; padding: 16px 24px; }
.logo { font-family: var(--font-display); font-weight: 400; font-size: 1.2rem; color: var(--paper); text-decoration: none; }
.main-nav { display: flex; gap: 22px; margin-left: auto; }
.main-nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
.main-nav a:hover { color: var(--text); }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.4rem; cursor: pointer; }

/* ---------- Badge ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px;
  background: var(--ink-2); border: 1px solid var(--hairline);
  font-family: var(--font-mono); font-size: 0.76rem; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 22px;
}
.badge-accent { color: var(--gold-strong); border-color: var(--gold); }

/* ---------- Hero ---------- */
.hero { padding: 70px 0 96px; background: radial-gradient(circle at 82% 0%, rgba(198,161,91,0.10), transparent 55%); }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 60px; align-items: center; }
.hero-actions { display: flex; gap: 16px; align-items: center; margin: 30px 0 16px; flex-wrap: wrap; }
.trust-line { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.02em; color: var(--muted); }

.hero-visual { position: relative; }
.mock-frame {
  background: var(--ink-2); border: 1px solid var(--hairline); border-radius: var(--radius);
  overflow: hidden; box-shadow: 0 30px 70px rgba(0,0,0,0.5);
}
.mock-topbar { display: flex; align-items: center; gap: 6px; padding: 12px 16px; background: var(--ink-3); }
.mock-topbar span { width: 9px; height: 9px; border-radius: 50%; background: rgba(243,237,224,0.18); }
.mock-topbar-label { margin-left: 10px; font-family: var(--font-mono); font-size: 0.68rem; color: var(--muted); letter-spacing: 0.03em; }
.mock-body { padding: 28px; }
.mock-label { font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); font-size: 0.72rem; }
.mock-value { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-size: 2.3rem; font-weight: 600; margin: 6px 0; color: var(--paper); }
.mock-change { font-family: var(--font-mono); color: var(--moss); font-size: 0.88rem; margin-bottom: 22px; }
.mock-bars { display: flex; flex-direction: column; gap: 11px; }
.mock-bar-row { display: grid; grid-template-columns: 104px 1fr 40px; align-items: center; gap: 10px; font-size: 0.82rem; color: var(--muted); }
.mock-bar-row span:last-child { font-family: var(--font-mono); text-align: right; }
.bar-track { height: 7px; background: var(--ink-3); border-radius: 6px; overflow: hidden; }
.bar-fill { height: 100%; width: var(--w); background: linear-gradient(90deg, var(--gold), var(--gold-strong)); border-radius: 6px; }

.mock-card {
  position: absolute; background: var(--ink-2); border: 1px solid var(--hairline); border-radius: 14px;
  padding: 16px; box-shadow: 0 20px 44px rgba(0,0,0,0.45);
}
.mock-card-donut { width: 168px; right: -22px; top: -32px; text-align: center; }
.mock-card-line { width: 196px; left: -22px; bottom: -32px; }
.mock-card-title { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted); margin-top: 10px; }

.donut {
  width: 92px; height: 92px; border-radius: 50%; margin: 0 auto;
  background: conic-gradient(
    var(--gold) 0% calc(var(--p1) * 1%),
    var(--moss) calc(var(--p1) * 1%) calc((var(--p1) + var(--p2)) * 1%),
    var(--rose) calc((var(--p1) + var(--p2)) * 1%) calc((var(--p1) + var(--p2) + var(--p3)) * 1%),
    var(--gold-strong) calc((var(--p1) + var(--p2) + var(--p3)) * 1%) calc((var(--p1) + var(--p2) + var(--p3) + var(--p4)) * 1%),
    var(--hairline) calc((var(--p1) + var(--p2) + var(--p3) + var(--p4)) * 1%) 100%
  );
  -webkit-mask: radial-gradient(circle, transparent 33px, #000 34px);
  mask: radial-gradient(circle, transparent 33px, #000 34px);
}
.mock-card-line svg { width: 100%; height: 46px; }
.mock-card-line polyline { fill: none; stroke: var(--moss); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- Problem ---------- */
/* ---------- Manifiesto ---------- */
.manifesto { padding-top: 10px; padding-bottom: 56px; }
.manifesto-title { font-size: clamp(1.8rem, 4vw, 2.6rem); color: var(--paper); }
.manifesto-claim {
  font-family: var(--font-display); font-style: italic; font-size: 1.3rem; color: var(--gold-strong);
  line-height: 1.4; margin: 0 auto 22px; max-width: 420px;
}

/* ---------- Problem ---------- */
.question-list { list-style: none; padding: 0; margin: 26px auto; max-width: 560px; }
.question-list li {
  padding: 15px 18px; margin-bottom: 10px; background: var(--ink-2); border: 1px solid var(--hairline); border-left: 2px solid var(--gold);
  border-radius: 6px; font-weight: 500; text-align: left;
}

/* ---------- Features ---------- */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 44px; }
.feature-card { background: var(--ink-2); border: 1px solid var(--hairline); border-radius: var(--radius); padding: 28px; }
.feature-icon { font-size: 1.7rem; margin-bottom: 12px; }
.feature-card h3 { font-size: 1.08rem; }
.feature-card p { color: var(--muted); font-size: 0.94rem; margin: 0; }

/* ---------- Privacy ---------- */
.privacy { background: var(--ink-2); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.privacy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin: 34px 0 30px; }
.privacy-card { background: var(--ink); border: 1px solid var(--hairline); border-radius: var(--radius); padding: 25px; text-align: left; }
.privacy-card p { color: var(--muted); font-size: 0.92rem; margin: 0; }
.fineprint { color: var(--muted); font-size: 0.82rem; max-width: 640px; margin: 0 auto; }

/* ---------- Pricing ---------- */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 44px; align-items: stretch; }
.price-card {
  background: var(--ink-2); border: 1px solid var(--hairline); border-radius: var(--radius);
  padding: 30px 26px; display: flex; flex-direction: column; position: relative;
}
.price-card-featured { border-color: var(--gold); box-shadow: 0 0 0 1px var(--gold), 0 20px 44px rgba(198,161,91,0.14); }
.price-tag { position: absolute; top: -12px; right: 20px; background: var(--gold); color: var(--gold-ink); font-family: var(--font-mono); font-size: 0.72rem; font-weight: 700; padding: 4px 10px; border-radius: 999px; }
.price { font-family: var(--font-mono); font-size: 2rem; font-weight: 600; margin-bottom: 18px; color: var(--paper); }
.price span { font-size: 0.85rem; color: var(--muted); font-weight: 400; }
.price-card ul { list-style: none; padding: 0; margin: 0 0 26px; flex-grow: 1; }
.price-card li { padding: 7px 0; color: var(--muted); font-size: 0.92rem; border-top: 1px solid var(--hairline); }
.price-card li:first-child { border-top: none; }

/* ---------- Form ---------- */
.signup { background: var(--ink-2); border-top: 1px solid var(--hairline); }
#emailForm, #surveyForm { margin-top: 32px; background: var(--ink); border: 1px solid var(--hairline); border-radius: var(--radius); padding: 36px; }

.email-row { display: flex; gap: 10px; flex-wrap: wrap; }
.email-row input[type="email"] {
  flex: 1 1 240px; padding: 14px 16px; border-radius: 7px; border: 1px solid var(--hairline);
  background: var(--ink-2); color: var(--text); font-size: 1rem; font-family: inherit;
}
.email-row input[type="email"]:focus-visible { outline: 2px solid var(--gold); outline-offset: 1px; }
.email-row .btn { flex: 0 0 auto; white-space: nowrap; }
.email-row + .consent-row { margin-top: 16px; margin-bottom: 0; }

.success-panel { text-align: center; margin-bottom: 8px; }
.success-emoji { font-size: 2.2rem; display: block; margin-bottom: 6px; }
.survey-intro { margin-bottom: 4px; }

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

.form-row { margin-bottom: 24px; }
.form-row > label { display: block; font-weight: 600; margin-bottom: 9px; }
.form-row input[type="text"], .form-row input[type="email"], .form-row textarea {
  width: 100%; padding: 12px 14px; border-radius: 7px; border: 1px solid var(--hairline);
  background: var(--ink-2); color: var(--text); font-size: 1rem; font-family: inherit;
}
.form-row input:focus-visible, .form-row textarea:focus-visible { outline: 2px solid var(--gold); outline-offset: 1px; }
.form-row textarea { resize: vertical; }
.radio-group, .checkbox-group { display: flex; flex-direction: column; gap: 9px; }
.radio-group.radio-inline { flex-direction: row; flex-wrap: wrap; gap: 16px; }
.radio-group label, .checkbox-group label { font-weight: 400; display: flex; align-items: center; gap: 8px; color: var(--muted); cursor: pointer; }
.radio-group input, .checkbox-group input { accent-color: var(--gold); width: 16px; height: 16px; flex-shrink: 0; }
.consent-row a { color: var(--gold-strong); }
.hidden-field { position: absolute; left: -9999px; }
.form-status { margin-top: 14px; font-size: 0.9rem; min-height: 1.2em; }
.form-status.success { color: var(--moss); }
.form-status.error { color: var(--rose); }

/* ---------- FAQ ---------- */
.faq details { background: var(--ink-2); border: 1px solid var(--hairline); border-radius: 8px; padding: 17px 20px; margin-bottom: 12px; }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--gold-strong); font-size: 1.2rem; }
.faq details[open] summary::after { content: "\2013"; }
.faq details p { color: var(--muted); margin: 12px 0 0; }

/* ---------- Footer ---------- */
.site-footer { padding: 52px 0 26px; border-top: 1px solid var(--hairline); }
.footer-inner { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 32px; flex-wrap: wrap; gap: 20px; }
.footer-links { display: flex; gap: 20px; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--text); }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 420px; margin: 44px auto 0; }
  .features-grid, .privacy-grid, .pricing-grid { grid-template-columns: 1fr; }
  .main-nav { display: none; }
  .nav-toggle { display: block; margin-left: auto; }
  .main-nav.open { display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--ink); padding: 16px 24px; border-bottom: 1px solid var(--hairline); }
  section.section { padding: 60px 0; }
}