/* ========================================
   drgildardocortes.com — Sistema de diseño (Fase 7)
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Lora:wght@400;500;600&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  /* Color */
  --ink-navy: #10202B;
  --paper-mist: #F2F3F1;
  --clinical-teal: #0E5C58;
  --clinical-teal-dark: #0A4744;
  --brass-signal: #B08A4E;
  --mist-sage: #C7D3CD;
  --alert-coral: #C1502E;
  --white: #FFFFFF;

  /* Type */
  --font-display: 'Lora', Georgia, 'Times New Roman', serif;
  --font-body: 'IBM Plex Sans', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  /* Spacing (8px grid) */
  --sp-1: 4px; --sp-2: 8px; --sp-3: 16px; --sp-4: 24px;
  --sp-5: 32px; --sp-6: 48px; --sp-7: 64px; --sp-8: 96px; --sp-9: 128px;

  --radius: 6px;
  --max-text: 720px;
}

@media (max-width: 767px) { :root { --sp-8: 56px; } }

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  width: 100%;
  overflow-x: hidden;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--paper-mist);
  color: var(--ink-navy);
  font-size: 16px;
  line-height: 1.6;
  /* Safari requiere declaración explícita del estilo; no lo infiere del archivo
     de fuente como hacen otros navegadores. */
  font-style: normal;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.3;
  color: var(--ink-navy);
}
h1 { font-size: 56px; margin-bottom: var(--sp-3); }
h2 { font-size: 36px; margin-bottom: var(--sp-3); }
h3 { font-family: var(--font-body); font-weight: 600; font-size: 24px; margin-bottom: var(--sp-2); }
@media (max-width: 767px) {
  h1 { font-size: 34px; }
  h2 { font-size: 26px; }
  h3 { font-size: 20px; }
}

p { max-width: var(--max-text); margin-bottom: var(--sp-3); }
a { color: var(--clinical-teal); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--brass-signal); outline-offset: 2px; }

ul { max-width: var(--max-text); margin-bottom: var(--sp-3); padding-left: 20px; }

.eyebrow {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clinical-teal);
  display: block;
  margin-bottom: var(--sp-2);
}

.container {
  box-sizing: border-box;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 6%;
  padding-right: 6%;
}
/* Ningún hijo puede desbordar el padding del contenedor */
.container > * {
  max-width: 100%;
  min-width: 0;
}

.section {
  padding: var(--sp-8) 0;
}
.section--sage { background: var(--mist-sage); }
.section--navy { background: var(--ink-navy); color: var(--paper-mist); }
.section--navy h2, .section--navy h1 { color: var(--paper-mist); }

/* Breadcrumb */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-navy);
  padding: var(--sp-3) 0;
  opacity: 0.7;
}
.breadcrumb a { color: var(--ink-navy); }

/* Header / Nav */
.site-header {
  background: var(--paper-mist);
  border-bottom: 1px solid var(--mist-sage);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  flex-wrap: nowrap;
  padding-top: var(--sp-3);
  padding-bottom: var(--sp-3);
  padding-left: 6%;
  padding-right: 6%;
  position: relative;
}
.nav__logo {
  display: flex;
  align-items: center;
  white-space: nowrap;
  flex-shrink: 0;
}
.nav__links {
  display: flex;
  gap: var(--sp-4);
  list-style: none;
  font-size: 15px;
  flex-wrap: nowrap;
  white-space: nowrap;
}
.nav__links a { color: var(--ink-navy); }
.nav__cta {
  display: inline-block;
  white-space: nowrap;
  flex-shrink: 0;
  padding: 10px 20px;
}
.nav__toggle { display: none; flex-shrink: 0; }

/* Debajo de escritorio grande, el menú completo no cabe con logo + 6 links + CTA:
   se colapsa a hamburguesa antes que el breakpoint general de mobile. */
@media (max-width: 1100px) {
  .nav__links { display: none; }
  .nav__toggle { display: block; background: none; border: none; font-size: 24px; cursor: pointer; }
}

/* Buttons */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 16px;
  padding: 14px 28px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform 150ms ease-out, box-shadow 150ms ease-out;
  text-decoration: none !important;
  border: none;
}
.btn:hover { transform: scale(1.02); box-shadow: 0 4px 12px rgba(16,32,43,0.12); }
.btn--primary { background: var(--clinical-teal); color: var(--white); }
.btn--secondary { background: transparent; color: var(--clinical-teal); border: 1px solid var(--clinical-teal); }
.btn-row { display: flex; gap: var(--sp-3); flex-wrap: wrap; margin-top: var(--sp-4); }

/* Hero */
.hero {
  display: flex;
  align-items: center;
  gap: var(--sp-7);
  padding-top: var(--sp-8);
  padding-bottom: var(--sp-7);
  padding-left: 6%;
  padding-right: 6%;
}
.hero__text { flex: 1; }
.hero__visual { flex: 1; }
.hero__visual svg, .hero__visual img { width: 100%; height: auto; }
.hero__subtitle { font-size: 19px; color: var(--ink-navy); opacity: 0.85; }
@media (max-width: 767px) {
  .hero { flex-direction: column; padding-top: var(--sp-6); }
}

/* Cards / Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
}
@media (max-width: 1199px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 767px)  { .grid { grid-template-columns: 1fr; } }

.card {
  background: var(--paper-mist);
  border: 1px solid var(--mist-sage);
  border-radius: 8px;
  padding: var(--sp-4);
  transition: border-color 150ms, box-shadow 150ms;
  display: block;
}
.card:hover {
  border-color: var(--clinical-teal);
  box-shadow: 0 2px 8px rgba(16,32,43,0.08);
  text-decoration: none;
}
.card__icon { width: 40px; height: 40px; color: var(--clinical-teal); margin-bottom: var(--sp-3); }
.card__title { font-family: var(--font-body); font-weight: 600; font-size: 18px; color: var(--ink-navy); margin-bottom: var(--sp-1); }
.card__desc { font-size: 15px; opacity: 0.8; margin-bottom: 0; }

/* Trust bar */
.trust-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-5);
  padding: var(--sp-4) 0;
}
.trust-badge {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-navy);
  max-width: 220px;
}

/* FAQ Accordion */
.faq-item { border-bottom: 1px solid var(--mist-sage); }
.faq-item__q {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: var(--sp-3) 0;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 17px;
  color: var(--ink-navy);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}
.faq-item__icon { transition: transform 200ms ease; font-family: var(--font-mono); }
.faq-item.is-open .faq-item__icon { transform: rotate(45deg); }
.faq-item__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 200ms ease;
  font-size: 15px;
  opacity: 0.85;
}
.faq-item.is-open .faq-item__a { max-height: 300px; padding-bottom: var(--sp-3); }

/* Stepper */
.stepper { display: flex; gap: var(--sp-3); }
.stepper__step {
  flex: 1;
  border-top: 3px solid var(--clinical-teal);
  padding-top: var(--sp-2);
}
.stepper__num { font-family: var(--font-mono); color: var(--clinical-teal); font-size: 13px; }
@media (max-width: 767px) {
  .stepper { flex-direction: column; }
  .stepper__step { border-top: none; border-left: 3px solid var(--clinical-teal); padding-left: var(--sp-3); padding-top: 0; }
}

/* Doctor mini bio */
.doctor-bio {
  display: flex;
  gap: var(--sp-4);
  align-items: center;
  background: var(--white);
  border: 1px solid var(--mist-sage);
  border-radius: 8px;
  padding: var(--sp-4);
}
.doctor-bio img { width: 96px; height: 96px; border-radius: 50%; object-fit: cover; }

/* CTA banner */
.cta-banner {
  text-align: center;
  padding-top: var(--sp-6);
  padding-bottom: var(--sp-6);
  padding-left: 6%;
  padding-right: 6%;
  border-radius: 8px;
}
.cta-banner h2 { font-size: 28px; }

/* Footer */
.site-footer {
  background: var(--ink-navy);
  color: var(--paper-mist);
  padding-top: var(--sp-6);
  padding-bottom: var(--sp-4);
  padding-left: 6%;
  padding-right: 6%;
  font-size: 14px;
}
.site-footer a { color: var(--paper-mist); opacity: 0.8; }
.footer-cols { display: flex; gap: var(--sp-7); flex-wrap: wrap; margin-bottom: var(--sp-5); }
.footer-legal { opacity: 0.6; font-size: 12px; }

/* Sticky mobile CTA */
.sticky-cta {
  display: none;
}
@media (max-width: 767px) {
  .sticky-cta {
    display: block;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: var(--paper-mist);
    border-top: 1px solid var(--mist-sage);
    padding: var(--sp-2) var(--sp-3);
    z-index: 200;
  }
  .sticky-cta .btn { width: 100%; text-align: center; }
  body { padding-bottom: 72px; }
}

/* Ilustraciones/íconos médicos (Fase 7, ahora con íconos reales, no trazos abstractos) */
.line-art { width: 100%; max-width: 160px; opacity: 0; transition: opacity 500ms ease, transform 500ms ease; transform: scale(0.92); }
.hero.is-visible .line-art { opacity: 1; transform: scale(1); }
@media (prefers-reduced-motion: reduce) {
  .line-art { opacity: 1; transform: none; transition: none; }
}
.logo-img { height: 120px; width: auto; display: block; }
@media (max-width: 1100px) { .logo-img { height: 64px; } }
@media (max-width: 767px)  { .logo-img { height: 44px; } }

@media (max-width: 767px) {
  /* En móvil el CTA del nav se oculta: ya existe .sticky-cta fijo abajo con la misma acción */
  .nav__cta { display: none; }
}
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 250ms ease-out, transform 250ms ease-out;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); will-change: auto; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}
/* En móvil se desactiva la animación de aparición: aporta poco valor visual
   y es una fuente conocida de artefactos de renderizado en Safari/iOS. */
@media (max-width: 767px) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; will-change: auto !important; }
}

/* Variante del stepper para fondo navy (p. ej. sección Código Vida):
   el teal por defecto pierde contraste sobre --ink-navy, así que en
   este contexto usamos el acento brass, ya establecido para navy. */
.section--navy .stepper__step { border-top-color: var(--brass-signal); }
.section--navy .stepper__num { color: var(--brass-signal); }

/* Par de estadísticas destacadas (p. ej. tiempos de isquemia) */
.stat-duo { display: flex; gap: var(--sp-6); flex-wrap: wrap; margin: var(--sp-5) 0; }
.stat-duo__item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 32px;
  color: var(--brass-signal);
  line-height: 1.1;
}
.stat-duo__item span {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.8;
}
@media (max-width: 767px) { .stat-duo { gap: var(--sp-4); } }