/*
 * Paleta: exactamente la misma del "Modo Paciente" de la app Denti3D
 * (src/styles/tokens.css) — claro, profesional, pensado para mostrarse
 * a personas ajenas al software clínico del día a día.
 */
:root {
  --bg: #F4F8FF;
  --bg-elevated: #FFFFFF;
  --bg-card: #FFFFFF;
  --text: #0A1428;
  --muted: #4A5A78;
  --muted-2: #8B96AE;
  --accent: #0891B2;
  --accent-strong: #0E7490;
  --accent-2: #2563EB;
  --accent-rgb: 8, 145, 178;
  --border: #D0DBEC;
  --border-subtle: #E3EAF5;
  --radius: 16px;
  --shadow-card: 0 1px 2px rgba(10, 20, 40, 0.04), 0 12px 32px rgba(10, 20, 40, 0.08);
  --shadow-elevated: 0 20px 60px rgba(10, 20, 40, 0.14);
}

/* ==========================================================================
   Libreria de animaciones — mismo vocabulario de movimiento e interaccion
   que grupolopezmolina.com (fade-in direccional, scale-in, slide-in-down,
   glow pulsante, hover-lift/scale/glow, reveal-on-scroll con retrasos
   escalonados), reimplementado con la paleta cyan/azul de Denti3D en vez
   de su dorado.
   ========================================================================== */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInLeft { from { opacity: 0; transform: translateX(-30px); } to { opacity: 1; transform: translateX(0); } }
@keyframes fadeInRight { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }
@keyframes scaleIn { from { opacity: 0; transform: scale(0.8); } to { opacity: 1; transform: scale(1); } }
@keyframes slideInDown { from { opacity: 0; transform: translateY(-25%); } to { opacity: 1; transform: translateY(0); } }
@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px rgba(var(--accent-rgb), 0.5); }
  50% { box-shadow: 0 0 30px rgba(var(--accent-rgb), 0.8); }
}
@keyframes bounce {
  0%, 100% { transform: translateY(-25%); animation-timing-function: cubic-bezier(0.8,0,1,1); }
  50% { transform: translateY(0); animation-timing-function: cubic-bezier(0,0,0.2,1); }
}
@keyframes pulse { 50% { opacity: 0.5; } }
.animate-bounce { animation: bounce 2s infinite; }
.animate-pulse { animation: pulse 2s infinite; }

.animate-fade-in-up, .animate-fade-in-left, .animate-fade-in-right, .animate-scale-in, .animate-slide-in-down {
  opacity: 0; /* evita el "flash" visible antes de que arranque la animacion (con delay) */
}
.animate-fade-in-up { animation: fadeInUp 0.8s ease-out forwards; }
.animate-fade-in-left { animation: fadeInLeft 0.8s ease-out forwards; }
.animate-fade-in-right { animation: fadeInRight 0.8s ease-out forwards; }
.animate-scale-in { animation: scaleIn 0.6s ease-out forwards; }
.animate-slide-in-down { animation: slideInDown 0.6s ease-out forwards; }
.animate-glow { animation: glow 2s infinite; }
.animate-delay-100 { animation-delay: 0.1s; }
.animate-delay-200 { animation-delay: 0.2s; }
.animate-delay-300 { animation-delay: 0.3s; }
.animate-delay-400 { animation-delay: 0.4s; }
.animate-delay-500 { animation-delay: 0.5s; }

.hover-lift { transition: transform 0.3s, box-shadow 0.3s; }
.hover-lift:hover { transform: translateY(-8px); }
.hover-scale { transition: transform 0.3s; }
.hover-scale:hover { transform: scale(1.05); }
.hover-glow { transition: box-shadow 0.3s; }
.hover-glow:hover { box-shadow: 0 0 30px rgba(var(--accent-rgb), 0.5); }

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Inter', -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Capas decorativas: manchas de gradiente suaves detras del contenido,
   para dar sensacion de profundidad sin depender de mas fotografia. */
.bg-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  z-index: 0;
  pointer-events: none;
  opacity: 0.35;
}
.bg-blob.b1 { width: 420px; height: 420px; background: radial-gradient(circle, var(--accent), transparent 70%); top: -140px; right: -120px; }
.bg-blob.b2 { width: 320px; height: 320px; background: radial-gradient(circle, var(--accent-2), transparent 70%); bottom: -100px; left: -100px; }
.hero, .hero .container, #pricing .container { position: relative; z-index: 1; }
.hero { position: relative; overflow: hidden; }

/* Reveal on scroll (scroll-reveal / revealed) */
.reveal { opacity: 0; transform: translateY(50px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Cascada escalonada por tarjeta al revelarse */
.features-grid .feature-card, .pricing-grid .plan-card { opacity: 0; transform: translateY(50px); transition: opacity 0.6s ease-out, transform 0.3s, box-shadow 0.3s; }
.features-grid.visible .feature-card, .pricing-grid.visible .plan-card { opacity: 1; transform: translateY(0); }
.features-grid .feature-card:nth-child(1), .pricing-grid .plan-card:nth-child(1) { transition-delay: 0s; }
.features-grid .feature-card:nth-child(2), .pricing-grid .plan-card:nth-child(2) { transition-delay: 0.08s; }
.features-grid .feature-card:nth-child(3) { transition-delay: 0.16s; }
.features-grid .feature-card:nth-child(4) { transition-delay: 0.24s; }
.features-grid .feature-card:nth-child(5) { transition-delay: 0.32s; }
.features-grid .feature-card:nth-child(6) { transition-delay: 0.4s; }
.features-grid .feature-card:nth-child(7) { transition-delay: 0.48s; }
.features-grid .feature-card:nth-child(8) { transition-delay: 0.56s; }

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

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

header.site {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 30;
}
header.site .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.2rem; color: var(--text); }
header.site .brand img { height: 42px; width: auto; }
.brand-by {
  font-size: 0.7rem; font-weight: 500; color: var(--muted-2);
  margin-left: 8px; padding-left: 8px; border-left: 1px solid var(--border);
  text-transform: none; letter-spacing: 0;
}
header.site nav { display: flex; align-items: center; }
header.site nav a { margin-left: 28px; color: var(--muted); text-decoration: none; font-size: 0.94rem; font-weight: 500; }
header.site nav a:hover { color: var(--text); }
header.site nav a.btn { margin-left: 28px; }

.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  font-size: 0.95rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-primary { background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%); color: #FFFFFF; box-shadow: 0 8px 20px rgba(var(--accent-rgb), 0.28); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(var(--accent-rgb), 0.4), 0 0 22px rgba(var(--accent-rgb), 0.35); }
.btn-outline:hover { transform: translateY(-2px); border-color: var(--accent); }
.btn-outline { background: #FFFFFF; color: var(--text); border: 1px solid var(--border); margin-left: 12px; }

.hero { padding: 88px 24px 40px; }
.hero .container { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; }
.hero .eyebrow { color: var(--accent-strong); font-weight: 600; font-size: 0.85rem; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 14px; }
.hero h1 { font-size: 2.7rem; line-height: 1.15; margin: 0 0 10px; letter-spacing: -0.01em; }
.hero p.tagline { font-size: 1.05rem; font-weight: 600; margin: 0 0 16px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { color: var(--muted); font-size: 1.1rem; max-width: 480px; margin: 0 0 32px; }
.hero .actions { display: flex; align-items: center; }
.scroll-cue {
  position: absolute; bottom: 18px; left: 50%; margin-left: -17px; /* centrado sin usar transform, que ya usa la animacion de bounce */
  width: 34px; height: 34px; border-radius: 50%; background: var(--bg-elevated);
  border: 1px solid var(--border); color: var(--accent-strong); text-decoration: none;
  display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-card);
  z-index: 2;
}
.mini-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.mini-badges span { background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: 999px; padding: 7px 14px; font-size: 0.8rem; color: var(--muted); font-weight: 500; box-shadow: var(--shadow-card); }
.hero-image { border-radius: 20px; overflow: hidden; box-shadow: var(--shadow-elevated); border: 1px solid var(--border-subtle); }
.hero-image img { width: 100%; height: 100%; object-fit: cover; display: block; }

.trust-strip {
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  padding: 28px 24px;
}
.trust-strip .container { display: flex; flex-wrap: wrap; gap: 32px; justify-content: space-between; }
.trust-item { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 0.9rem; font-weight: 500; }
.trust-item strong { color: var(--text); font-size: 1.05rem; }

.clinic-band .container { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: center; }
.clinic-band .clinic-photo { border-radius: 20px; overflow: hidden; box-shadow: var(--shadow-elevated); border: 1px solid var(--border-subtle); }
.clinic-band .clinic-photo img { width: 100%; display: block; }
.clinic-band h2 { margin-bottom: 14px; }
@media (max-width: 860px) {
  .clinic-band .container { grid-template-columns: 1fr; }
  .clinic-band .clinic-photo { order: -1; }
}

section { padding: 72px 24px; }
section h2 { font-size: 1.75rem; margin-bottom: 10px; letter-spacing: -0.01em; }
section p.section-lead { color: var(--muted); margin-bottom: 44px; max-width: 620px; }

.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.feature-card { background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-card); transition: transform 0.3s, box-shadow 0.3s; }
.feature-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-elevated), 0 0 24px rgba(var(--accent-rgb), 0.18); }
.feature-card.ai-feature { border-color: var(--accent); background: linear-gradient(180deg, rgba(8,145,178,0.06), transparent 60%); }
.feature-card .icon { font-size: 1.4rem; margin-bottom: 10px; display: block; }
.feature-card h3 { margin: 0 0 8px; font-size: 1rem; }
.feature-card p { color: var(--muted); font-size: 0.9rem; margin: 0; }

#pricing { background: var(--bg-elevated); border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); }
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; max-width: 780px; }
.plan-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s, box-shadow 0.3s;
}
.plan-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-elevated), 0 0 30px rgba(var(--accent-rgb), 0.2); }
.plan-card.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), var(--shadow-card); position: relative; }
.plan-card.featured::before {
  content: 'Más popular';
  position: absolute; top: -12px; right: 28px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; font-size: 0.72rem; font-weight: 700; padding: 5px 12px; border-radius: 999px;
}
.plan-card h3 { margin: 0; font-size: 1.1rem; }
.plan-card .price { font-size: 2.3rem; font-weight: 700; margin: 10px 0 22px; color: var(--text); }
.plan-card .price span { font-size: 0.95rem; color: var(--muted); font-weight: 500; }
.plan-card ul { list-style: none; padding: 0; margin: 0 0 28px; flex: 1; }
.plan-card li { padding: 7px 0; color: var(--muted); font-size: 0.92rem; }
.plan-card li::before { content: '✓ '; color: var(--accent-strong); font-weight: 700; }
.plan-card li.off { opacity: 0.45; }
.plan-card li.off::before { content: '— '; color: var(--muted-2); }
.plan-card .btn { text-align: center; }

.docs-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; }
.docs-list details { background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: var(--radius); padding: 18px 22px; box-shadow: var(--shadow-card); }
.docs-list summary { cursor: pointer; font-weight: 600; }
.docs-list p { color: var(--muted); font-size: 0.9rem; margin: 10px 0 0; }

footer.site { padding: 44px 24px; text-align: center; color: var(--muted); font-size: 0.85rem; border-top: 1px solid var(--border-subtle); background: var(--bg-elevated); }

@media (max-width: 860px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-image { order: -1; }
}

/* Chat widget */
#chat-toggle {
  position: fixed; bottom: 24px; right: 24px;
  width: 58px; height: 58px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none; cursor: pointer; font-size: 1.4rem; color: #fff;
  box-shadow: 0 10px 24px rgba(8, 145, 178, 0.35);
  z-index: 40;
  animation: chatPulse 2.6s ease-in-out infinite;
}
@keyframes chatPulse {
  0%, 100% { box-shadow: 0 10px 24px rgba(8, 145, 178, 0.35), 0 0 0 0 rgba(8, 145, 178, 0.35); }
  50% { box-shadow: 0 10px 24px rgba(8, 145, 178, 0.35), 0 0 0 10px rgba(8, 145, 178, 0); }
}
#chat-tooltip {
  position: fixed; bottom: 92px; right: 24px; max-width: 220px;
  background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 12px;
  padding: 12px 14px; font-size: 0.82rem; color: var(--text); box-shadow: var(--shadow-card);
  z-index: 39; opacity: 0; transform: translateY(6px); transition: opacity 0.4s ease, transform 0.4s ease;
  pointer-events: none;
}
#chat-tooltip.show { opacity: 1; transform: translateY(0); pointer-events: auto; }
#chat-tooltip strong { color: var(--accent-strong); }
#chat-panel {
  position: fixed; bottom: 94px; right: 24px; width: 330px; max-width: calc(100vw - 48px);
  background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius);
  display: none; flex-direction: column; overflow: hidden; z-index: 40;
  box-shadow: var(--shadow-elevated);
}
#chat-panel.open { display: flex; }
#chat-panel .chat-header { padding: 14px 18px; border-bottom: 1px solid var(--border-subtle); font-weight: 600; font-size: 0.9rem; background: var(--bg-card); }
#chat-messages { padding: 14px 18px; height: 260px; overflow-y: auto; font-size: 0.88rem; }
#chat-messages .msg { margin-bottom: 12px; }
#chat-messages .msg.user { color: var(--text); text-align: right; font-weight: 500; }
#chat-messages .msg.bot { color: var(--muted); }
#chat-form { display: flex; border-top: 1px solid var(--border-subtle); }
#chat-input { flex: 1; background: transparent; border: none; color: var(--text); padding: 12px 14px; font-size: 0.88rem; }
#chat-input:focus { outline: none; }
#chat-form button { background: none; border: none; color: var(--accent-strong); font-weight: 600; padding: 0 16px; cursor: pointer; }

/* Modal */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(10, 20, 40, 0.45);
  display: none; align-items: center; justify-content: center; z-index: 50;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px; width: 340px; max-width: calc(100vw - 48px); box-shadow: var(--shadow-elevated);
}
.modal h3 { margin-top: 0; }
.modal input {
  width: 100%; padding: 11px 14px; margin: 8px 0; border-radius: 9px;
  border: 1px solid var(--border); background: var(--bg); color: var(--text); font-size: 0.9rem;
}
.modal .actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }

/* --- Preloader: animacion 100% vectorial de un diente siendo cepillado --- */
#preloader {
  position: fixed; inset: 0; z-index: 200;
  background: radial-gradient(circle at 50% 30%, #eef6ff 0%, var(--bg) 65%);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
#preloader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
#preloader .rig { position: relative; width: 220px; height: 220px; }
#preloader svg { width: 100%; height: 100%; overflow: visible; }

/* El diente ahora es un canvas WebGL (three.js, ver tooth3d.js) inyectado
   dentro de #tooth3d.rig — geometria extruida 100% digital, con profundidad
   real, no una imagen 2D girando. */
#tooth3d canvas { display: block; }

#preloader .brand-word {
  margin-top: 22px; font-weight: 700; font-size: 1.15rem; color: var(--text);
  opacity: 0; animation: fadeUp 0.6s ease forwards; animation-delay: 0.3s;
  letter-spacing: 0.01em;
}
#preloader .brand-tag {
  margin-top: 4px; font-size: 0.82rem; color: var(--muted);
  opacity: 0; animation: fadeUp 0.6s ease forwards; animation-delay: 0.5s;
}
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

@media (prefers-reduced-motion: reduce) {
  #preloader .brand-word, #preloader .brand-tag {
    animation: none !important;
  }
}