/* ============================================================
   Servicio Mutuo de la IMM — Hoja de estilos
   Tokens extraídos del diseño original + soporte responsive
   ============================================================ */

:root {
  --color-bg: #FAF7F2;
  --color-navy: #1C3144;
  --color-navy-dark: #14212e;
  --color-accent: #A6386B;
  --color-accent-hover: #853058;
  --color-card-bg: #ffffff;
  --color-card-alt-bg: #F7F4EF;
  --color-border: #ece6dc;
  --color-text: #14110F;
  --color-text-muted: #635B52;
  --color-on-navy: #FAF7F2;
  --color-on-navy-muted: #c7cdd6;
  --color-on-navy-error: #F3D9E4;
  --color-footer-muted: #8c94a0;
  --color-footer-copy: #6b7280;
  --color-whatsapp-dot: #4E7C4A;

  --font-display: 'Manrope', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-pill: 28px;

  --max-width: 1280px;
  --pad-x: clamp(20px, 6vw, 64px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

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

img { max-width: 100%; }

.page { min-height: 100vh; background: var(--color-bg); overflow-x: hidden; }

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

/* ---------- Header / Nav ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-navy);
  padding: 14px var(--pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand__logo { width: 52px; height: 52px; flex: none; object-fit: contain; }

.brand__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  color: var(--color-on-navy);
  letter-spacing: 0.2px;
  line-height: 1.15;
}

.brand__name span {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 19px;
  color: var(--color-on-navy);
}

.nav {
  display: flex;
  gap: clamp(14px, 3vw, 28px);
  align-items: center;
}

.nav__link {
  color: var(--color-on-navy);
  text-decoration: none;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 16px;
  padding-bottom: 2px;
}

.nav__link--active {
  font-weight: 700;
  border-bottom: 2px solid var(--color-accent);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  flex: none;
}

.nav-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-on-navy);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 720px) {
  .nav-toggle { display: flex; }

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-navy);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    padding: 0 var(--pad-x);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    transition: max-height 0.25s ease, padding 0.25s ease;
  }

  .nav--open {
    max-height: 320px;
    padding: 8px var(--pad-x) 20px;
  }

  .nav__link {
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid rgba(250, 247, 242, 0.12);
  }

  .nav__link--active { border-bottom: 1px solid var(--color-accent); }
}

/* ---------- Hero ---------- */

.hero-banner { width: 100%; overflow: hidden; line-height: 0; }

.hero-banner__image { width: 100%; height: auto; display: block; }

.hero {
  padding: clamp(48px, 8vw, 96px) var(--pad-x);
  display: flex;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
  flex-wrap: wrap;
}

.hero__content { flex: 1 1 420px; min-width: 300px; }

.hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 5vw, 50px);
  line-height: 1.12;
  color: var(--color-text);
  margin: 0 0 20px;
}

.hero__text {
  font-family: var(--font-body);
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.6;
  color: var(--color-text-muted);
  margin: 0 0 32px;
  max-width: 520px;
}

.hero__media { flex: 1 1 380px; min-width: 280px; }

.hero__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 20px;
  object-fit: contain;
  display: block;
}

/* ---------- Sections ---------- */

.section { padding: clamp(48px, 8vw, 80px) var(--pad-x); }

.section--navy { background: var(--color-navy); }

.section-eyebrow {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 12px;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 4vw, 42px);
  color: var(--color-text);
  margin: 0 0 8px;
}

.section-title--on-navy { color: var(--color-on-navy); }

.section-lead--on-navy { color: var(--color-on-navy-muted); }

.group-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2vw, 22px);
  color: var(--color-on-navy);
  margin: 40px 0 18px;
}

.card-grid + .group-title { margin-top: 48px; }

.section-lead {
  font-family: var(--font-body);
  color: var(--color-text-muted);
  font-size: 16px;
  margin: 0 0 32px;
}

.banner-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(36px, 6vw, 56px);
  color: var(--color-on-navy);
  margin: 0;
}

/* ---------- Cards ---------- */

.card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 40px);
}

.card-stack { display: flex; flex-direction: column; gap: 24px; }

.card-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.4vw, 26px);
  color: var(--color-text);
  margin: 0 0 20px;
}

.card-subtitle {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 17px;
  color: var(--color-text-muted);
  margin: 0 0 24px;
}

.card-text {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  margin: 0 0 20px;
}

.card-text:last-of-type { margin-bottom: 28px; }

.card-quote {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin: 0;
  border-left: 3px solid var(--color-accent);
  padding-left: 16px;
}

.badge-pill {
  background: var(--color-accent);
  color: var(--color-on-navy);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  display: inline-block;
  margin-bottom: 18px;
}

.numbered-list { display: flex; flex-direction: column; gap: 16px; margin-bottom: 28px; }

.numbered-item { display: flex; gap: 18px; align-items: flex-start; }

.numbered-item__num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-on-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  flex: none;
}

.numbered-item__text {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  margin: 6px 0 0;
}

.fact-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }

.fact-list p {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  margin: 0;
}

.diff-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--color-border);
  border-radius: 0 var(--radius-sm) var(--radius-sm) var(--radius-sm);
  overflow: hidden;
  margin-bottom: 24px;
}

.diff-col { padding: 16px 18px; }
.diff-col--old { background: var(--color-card-alt-bg); border-right: 1px solid var(--color-border); }

.diff-label {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.diff-label--old { color: var(--color-text-muted); }
.diff-label--new { color: var(--color-accent); }

.diff-col p, .diff-col div {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text);
  margin: 0;
}

.badge-pill--flat { border-radius: var(--radius-sm) var(--radius-sm) 0 0; }

@media (max-width: 640px) {
  .diff-grid { grid-template-columns: 1fr; }
  .diff-col--old { border-right: none; border-bottom: 1px solid var(--color-border); }
}

.promo-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.promo-card img { width: 100%; display: block; }

.doc-preview {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.doc-preview__link {
  display: block;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

/* ---------- Autoridades ---------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.person-card { display: flex; gap: 16px; align-items: flex-start; }

.person-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-on-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  flex: none;
}

.person-card__role {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 11px;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-bottom: 4px;
}

.person-card__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--color-text);
}

/* ---------- Estatuto ---------- */

.article-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--color-accent);
  margin: 0 0 10px;
}

.article-text {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  margin: 0 0 28px;
}

.note-callout {
  margin-top: 8px;
  padding: 16px 18px;
  border-left: 3px solid var(--color-accent);
  background: var(--color-card-alt-bg);
  border-radius: 0 8px 8px 0;
}

.note-callout p {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin: 0;
}

.chapter-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.2vw, 23px);
  color: var(--color-navy);
  margin: 40px 0 18px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.card > .chapter-title:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.toc {
  background: var(--color-card-alt-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3vw, 28px);
  margin-bottom: 32px;
}

.toc__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-bottom: 14px;
}

.toc__list {
  margin: 0;
  padding: 0 0 0 20px;
  columns: 2;
  column-gap: 32px;
}

.toc__list li { break-inside: avoid; margin-bottom: 8px; }

.toc__list a {
  font-family: var(--font-body);
  font-size: 14px;
  text-decoration: none;
  color: var(--color-text);
}

.toc__list a:hover { color: var(--color-accent); }

@media (max-width: 560px) {
  .toc__list { columns: 1; }
}

/* ---------- Contacto ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 40px;
}

.contact-form { display: flex; flex-direction: column; gap: 16px; }

.form-field label {
  display: block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  color: var(--color-on-navy);
  margin-bottom: 6px;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: none;
  font-family: var(--font-body);
  font-size: 16px;
  background: var(--color-bg);
  color: var(--color-text);
  box-sizing: border-box;
}

.form-textarea { resize: vertical; }

.form-error {
  display: none;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--color-on-navy-error);
  margin-top: 4px;
}

.btn-submit {
  background: var(--color-accent);
  color: var(--color-on-navy);
  border: none;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 16px;
  padding: 16px 32px;
  border-radius: 24px;
  cursor: pointer;
  align-self: flex-start;
}

.btn-submit:hover { background: var(--color-accent-hover); }

.contact-info { display: flex; flex-direction: column; gap: 20px; }

.contact-info-item { display: flex; gap: 14px; align-items: flex-start; }

.contact-info-item__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  margin-top: 8px;
  flex: none;
}

.contact-info-item__text {
  font-family: var(--font-body);
  color: var(--color-on-navy);
  font-size: 16px;
  line-height: 1.5;
}

.contact-info-item__text a { color: var(--color-on-navy); text-decoration: none; }

.map-embed {
  margin-top: 40px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.map-embed iframe { border: 0; display: block; width: 100%; height: 320px; }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--color-navy-dark);
  padding: clamp(32px, 5vw, 48px) var(--pad-x);
}

.site-footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--color-on-navy);
}

.footer-info {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-footer-muted);
}

.footer-copy {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--color-footer-copy);
}

/* ---------- WhatsApp flotante ---------- */

.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 200;
  background: var(--color-accent);
  color: var(--color-on-navy);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: var(--radius-pill);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
}

.whatsapp-float:hover { color: var(--color-on-navy); background: var(--color-accent-hover); }

.whatsapp-float__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-whatsapp-dot);
  flex: none;
}

/* ---------- Utilidades ---------- */

.flex-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Accesibilidad: foco visible */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .nav, .nav-toggle__bar { transition: none; }
}