/* Dinerova — hoja de estilos compartida (index.html y privacidad.html)
   Tokens replicados manualmente de lib/core/theme/app_theme.dart
   (proyecto Flutter, C:\dev\dinerova) para mantener la misma identidad. */

:root {
  --bg: #F7F0E4;
  --surface: #FFFCF7;
  --surface-elevated: #FFFFFF;
  --border: #E7DCC9;
  --on-surface: #2B2318;
  --on-surface-muted: #6B5D4C;
  --accent: #D9793F;
  --accent-text: #9E501F;
  --accent-soft: rgba(217, 121, 63, 0.14);
  --accent-border: rgba(217, 121, 63, 0.35);
  --on-accent: #2B2318;
  --income: #0F9D6E;
  --shadow: rgba(43, 35, 24, 0.10);
  --shadow-strong: rgba(43, 35, 24, 0.22);
  --phone-bezel: #241C14;

  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-xxl: 32px;
  --space-3xl: 64px;

  --max-width: 1100px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1C1712;
    --surface: #27201A;
    --surface-elevated: #2E2620;
    --border: #3B3128;
    --on-surface: #F2E9DD;
    --on-surface-muted: #A69A8C;
    --accent: #E48E58;
    --accent-text: var(--accent);
    --accent-soft: rgba(228, 142, 88, 0.16);
    --accent-border: rgba(228, 142, 88, 0.38);
    --on-accent: #1C1712;
    --shadow: rgba(0, 0, 0, 0.35);
    --shadow-strong: rgba(0, 0, 0, 0.55);
    --phone-bezel: #0E0B08;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--on-surface);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
}

a {
  color: var(--accent-text);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* Header (barra flotante con glassmorphism) */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: var(--space-md) var(--space-xl);
  position: sticky;
  top: var(--space-lg);
  z-index: 100;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 2px 12px var(--shadow);
  transition: box-shadow 0.25s ease, background 0.25s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 8px 24px var(--shadow-strong);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--on-surface);
}

.brand-name {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: var(--space-md) var(--space-sm);
  margin: calc(var(--space-md) * -1) calc(var(--space-sm) * -1);
  color: var(--on-surface-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

.nav-link:hover {
  color: var(--on-surface);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  border: none;
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-xl);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease;
}

.btn-primary {
  background: var(--accent);
  color: var(--on-accent);
  box-shadow: 0 4px 14px var(--accent-soft);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px var(--accent-soft);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-large {
  padding: var(--space-lg) var(--space-xxl);
  font-size: 1.05rem;
}

.btn-small {
  padding: var(--space-sm) var(--space-lg);
  font-size: 0.9rem;
}

/* Hero */

.hero {
  position: relative;
  padding: var(--space-3xl) var(--space-xl) var(--space-xl);
  overflow: visible;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

@media (max-width: 860px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xxl);
    text-align: center;
  }
}

.hero-copy h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin: 0 0 var(--space-lg);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--on-surface-muted);
  max-width: 480px;
  margin: 0 0 var(--space-xl);
}

@media (max-width: 860px) {
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

@media (max-width: 860px) {
  .hero-actions {
    justify-content: center;
  }
}

.hero-note {
  margin-top: var(--space-lg);
  font-size: 0.9rem;
  color: var(--on-surface-muted);
}

/* Phone mockup */

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: -15% -10%;
  background: radial-gradient(circle at 50% 42%, var(--accent-soft), transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.phone-mockup {
  position: relative;
  width: 260px;
  aspect-ratio: 9 / 19.5;
  background: var(--phone-bezel);
  border-radius: 42px;
  padding: 14px;
  transform: rotate(-6deg);
  box-shadow: 0 40px 70px -24px var(--shadow-strong), 0 10px 24px var(--shadow);
  transition: transform 0.4s ease;
}

.phone-mockup:hover {
  transform: rotate(-3deg) translateY(-4px);
}

.phone-notch {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 84px;
  height: 22px;
  background: var(--phone-bezel);
  border-radius: 0 0 16px 16px;
  z-index: 2;
}

.phone-screen {
  position: relative;
  width: 100%;
  height: 100%;
  background: var(--surface);
  border-radius: 28px;
  overflow: hidden;
}

.phone-screenshot {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

/* Sections */

section {
  padding: var(--space-3xl) 0;
}

.section-eyebrow {
  text-align: center;
  color: var(--accent-text);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 var(--space-sm);
}

.section-title {
  text-align: center;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-xxl);
}

/* Feature cards */

.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 1000px) {
  .features {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .features {
    grid-template-columns: 1fr;
  }
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: 0 2px 8px var(--shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px var(--shadow);
  border-color: var(--accent-border);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-card h3 {
  margin: 0 0 var(--space-sm);
  font-size: 1.15rem;
}

.feature-card p {
  margin: 0;
  color: var(--on-surface-muted);
}

/* Steps ("Cómo funciona") */

.steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xxl);
}

.steps::before {
  content: "";
  position: absolute;
  top: 28px;
  left: 16%;
  right: 16%;
  height: 2px;
  background: var(--border);
  z-index: 0;
}

@media (max-width: 800px) {
  .steps {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .steps::before {
    display: none;
  }
}

.step {
  position: relative;
  z-index: 1;
  text-align: center;
}

.step-number {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-lg);
  border-radius: 50%;
  background: var(--accent);
  color: var(--on-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 700;
  box-shadow: 0 6px 18px var(--accent-soft);
}

.step h3 {
  margin: 0 0 var(--space-sm);
  font-size: 1.05rem;
}

.step p {
  margin: 0;
  color: var(--on-surface-muted);
  max-width: 260px;
  margin-inline: auto;
}

/* Pricing */

.pricing-band {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.pricing-card {
  max-width: 460px;
  margin: 0 auto;
  background: var(--surface-elevated);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xxl) var(--space-xxl) var(--space-xl);
  text-align: center;
  box-shadow: 0 20px 48px var(--shadow);
}

.pricing-card p {
  color: var(--on-surface-muted);
  margin: 0;
}

.pricing-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: var(--surface);
  color: var(--accent-text);
  border: 1px solid var(--accent-border);
  border-radius: 999px;
  padding: var(--space-sm) var(--space-lg);
  font-weight: 700;
  font-size: 0.9rem;
  margin: 0 0 var(--space-lg);
}

.pricing-amount {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--accent);
  margin: 0 0 var(--space-lg);
  letter-spacing: -0.02em;
}

.pricing-amount span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--on-surface-muted);
}

.pricing-list {
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: left;
  color: var(--on-surface);
}

.pricing-list li {
  padding: var(--space-sm) 0;
  padding-left: var(--space-xl);
  position: relative;
}

.pricing-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--income);
  font-weight: 700;
}

.pricing-note {
  margin-top: var(--space-lg);
  font-size: 0.85rem;
}

.pricing-card .btn {
  margin-top: var(--space-sm);
  width: 100%;
}

.pricing-card .waitlist-embed {
  margin-top: var(--space-sm);
}

/* Download */

.download-section {
  text-align: center;
}

.download-note {
  margin-top: var(--space-lg);
}

.download-note a {
  font-weight: 600;
}

/* Waitlist embed (Google Forms) — fondo claro fijo a propósito: el
   formulario de Google no se adapta al modo oscuro, así que el
   contenedor mantiene una superficie clara siempre, con el resto de la
   página pudiendo estar en oscuro alrededor. */

.waitlist-embed {
  width: 100%;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: 0 2px 8px var(--shadow);
  max-width: 100%;
}

.waitlist-embed h3 {
  margin: 0 0 var(--space-md);
  font-size: 1.05rem;
  font-weight: 700;
  color: #2B2318;
  text-align: center;
}

.waitlist-embed-frame {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.waitlist-embed iframe {
  display: block;
  width: 100%;
  max-width: 640px;
  height: 638px;
  margin: 0 auto;
  border: none;
}

@media (max-width: 480px) {
  .waitlist-embed iframe {
    height: 760px;
  }
}

/* La tarjeta de precio siempre es angosta (max-width: 460px), así que su
   embebido necesita la altura "estrecha" en cualquier tamaño de
   ventana, no solo en móvil. */
.pricing-card .waitlist-embed iframe {
  height: 760px;
}

/* Screenshot placeholders */

.screenshot-placeholder {
  aspect-ratio: 9 / 18;
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-lg);
  color: var(--on-surface-muted);
  font-size: 0.85rem;
  background: var(--surface);
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-xl) 0;
  color: var(--on-surface-muted);
  font-size: 0.9rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.footer-links a {
  color: var(--on-surface-muted);
}

.footer-social {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.footer-social:empty {
  display: none;
}

.footer-social a {
  color: var(--on-surface-muted);
  display: flex;
}

.footer-social svg {
  width: 18px;
  height: 18px;
}

/* Legal page */

.legal-content {
  max-width: 720px;
  margin: 0 auto;
}

.legal-content h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  margin-bottom: var(--space-sm);
}

.legal-updated {
  color: var(--on-surface-muted);
  margin-bottom: var(--space-xxl);
}

.legal-content h2 {
  font-size: 1.25rem;
  margin-top: var(--space-xxl);
}

.legal-content ul {
  color: var(--on-surface);
}

.legal-content p,
.legal-content li {
  color: var(--on-surface);
}

.back-link {
  display: inline-block;
  margin-bottom: var(--space-xl);
}

/* Reveal-on-scroll (progressive enhancement vía app.js) */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.features .feature-card:nth-child(2) { transition-delay: 0.08s; }
.features .feature-card:nth-child(3) { transition-delay: 0.16s; }
.features .feature-card:nth-child(4) { transition-delay: 0.24s; }
.steps .step:nth-child(2) { transition-delay: 0.08s; }
.steps .step:nth-child(3) { transition-delay: 0.16s; }

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .phone-mockup,
  .btn-primary,
  .feature-card {
    transition: none;
  }
}