/* CUBRA Design System — Clinical Trust palette
   Sitio demostrativo. Propuesta a CUBRA. */

:root {
  --brand-primary: #0B5F7A;
  --brand-primary-dark: #063D50;
  --brand-primary-light: #E6F2F6;
  --brand-accent: #22C4B4;
  --brand-accent-dark: #1A9C90;
  --brand-accent-warm: #F4A261;
  --surface: #FFFFFF;
  --surface-alt: #F5F8FA;
  --surface-dark: #0F1F2A;
  --text: #0F1F2A;
  --text-muted: #4A5B67;
  --text-inverse: #FFFFFF;
  --border: #E2E8EE;
  --border-strong: #CBD5DF;
  --danger: #D43F3F;
  --success: #2E8B57;

  --font-heading: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 2px rgba(15, 31, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 31, 42, 0.08);
  --shadow-lg: 0 12px 32px rgba(15, 31, 42, 0.12);

  --container: 1200px;
  --banner-h: 36px;
  --header-h: 68px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
  line-height: 1.2;
}

h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: 1.375rem; }
h4 { font-size: 1.125rem; }
.card h3 { font-size: 1.125rem; } /* entity/event cards: match h4 size */

p { margin: 0 0 1em; color: var(--text-muted); }

a {
  color: var(--brand-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover { color: var(--brand-primary-dark); text-decoration: underline; }

img { max-width: 100%; height: auto; display: block; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Demo banner */
.demo-banner {
  background: var(--brand-accent-warm);
  color: #1a1a1a;
  text-align: center;
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--banner-h);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid rgba(0,0,0,0.1);
}

/* Header */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: var(--banner-h);
  z-index: 90;
  height: var(--header-h);
  box-shadow: var(--shadow-sm);
}

.nav-wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--brand-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.brand:hover { text-decoration: none; color: var(--brand-primary-dark); }
.brand-mark {
  width: 42px;
  height: 42px;
  display: block;
  object-fit: contain;
  flex-shrink: 0;
}
.brand-text small {
  display: block;
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--text);
  font-weight: 500;
  font-size: 0.92rem;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: background 0.15s, color 0.15s;
}
.nav-links a:hover,
.nav-links a.active {
  background: var(--brand-primary-light);
  color: var(--brand-primary);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text);
  font-family: var(--font-body);
}

@media (max-width: 960px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 1.25rem;
    box-shadow: var(--shadow-md);
    gap: 0;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 0.75rem 0.5rem; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  line-height: 1.2;
}
.btn-primary {
  background: var(--brand-primary);
  color: var(--text-inverse);
}
.btn-primary:hover {
  background: var(--brand-primary-dark);
  color: var(--text-inverse);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-accent {
  background: var(--brand-accent);
  color: var(--text-inverse);
}
.btn-accent:hover {
  background: var(--brand-accent-dark);
  color: var(--text-inverse);
  text-decoration: none;
}
.btn-ghost {
  background: transparent;
  color: var(--brand-primary);
  border-color: var(--border-strong);
}
.btn-ghost:hover {
  background: var(--brand-primary-light);
  color: var(--brand-primary);
  text-decoration: none;
}
.btn-lg {
  padding: 1rem 1.75rem;
  font-size: 1.05rem;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-dark) 100%);
  color: var(--text-inverse);
  padding: 5rem 1.25rem 6rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(circle at 70% 40%, rgba(34, 196, 180, 0.18) 0%, transparent 55%);
  pointer-events: none;
}
.hero-inner {
  max-width: var(--container);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.hero h1 {
  color: var(--text-inverse);
  max-width: 780px;
  margin-bottom: 1rem;
}
.hero p.lead {
  color: rgba(255,255,255,0.85);
  font-size: 1.15rem;
  max-width: 680px;
  margin-bottom: 2rem;
}
.hero .btn-ghost {
  background: rgba(255,255,255,0.06);
  color: var(--text-inverse);
  border-color: rgba(255,255,255,0.3);
}
.hero .btn-ghost:hover {
  background: rgba(255,255,255,0.14);
  color: var(--text-inverse);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}
.hero-eyebrow {
  display: inline-block;
  background: rgba(34, 196, 180, 0.15);
  border: 1px solid rgba(34, 196, 180, 0.4);
  color: var(--brand-accent);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
}

/* Section */
.section {
  padding: 4rem 1.25rem;
}
.section-alt {
  background: var(--surface-alt);
}
.section-head {
  max-width: var(--container);
  margin: 0 auto 2.5rem;
}
.section-head .eyebrow {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #096B5F; /* darkened for 4.5:1 contrast on white and surface-alt */
  margin-bottom: 0.5rem;
}
.section-head h2 { margin-bottom: 0.5rem; }
.section-head p { font-size: 1.05rem; max-width: 680px; }

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--brand-accent);
}
.card h3 { margin-bottom: 0.5rem; }
.card p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 1rem; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--brand-primary);
}
.card-link:hover { color: var(--brand-primary-dark); }
.card-link::after {
  content: '->';
  font-family: var(--font-body);
  transition: transform 0.2s;
}
.card:hover .card-link::after { transform: translateX(3px); }

.grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  gap: 1.5rem;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }

@media (max-width: 880px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* Badge */
.badge {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--brand-primary-light);
  color: var(--brand-primary);
  border: 1px solid rgba(11, 95, 122, 0.2);
}
.badge-warm {
  background: #FDF3E7;
  color: #8B420E; /* darkened for 6.6:1 on #FDF3E7 */
  border-color: rgba(244, 162, 97, 0.35);
}
.badge-accent {
  background: #E4F8F5;
  color: #096B5F; /* darkened for 5.5:1 on #E4F8F5 */
  border-color: rgba(34, 196, 180, 0.35);
}

/* Table */
.table-wrap {
  max-width: var(--container);
  margin: 0 auto;
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
}
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.table th, .table td {
  padding: 0.9rem 1.1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.table th {
  background: var(--surface-alt);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: var(--surface-alt); }
.table a { font-weight: 500; }

/* Initial circle for people */
.avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-accent) 100%);
  color: white;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  flex-shrink: 0;
}
.avatar-lg {
  width: 64px;
  height: 64px;
  font-size: 1.2rem;
}
.person-row {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.person-row strong { display: block; color: var(--text); }
.person-row small { color: var(--text-muted); font-size: 0.82rem; }

/* Form */
.form { max-width: 620px; margin: 0 auto; }
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
  margin-bottom: 0.4rem;
  color: var(--text);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text);
  background: var(--surface);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(11, 95, 122, 0.15);
}
.form-group textarea { min-height: 140px; resize: vertical; }

/* Footer */
.site-footer {
  background: var(--surface-dark);
  color: #C5D1DA;
  padding: 4rem 1.25rem 2rem;
  margin-top: 4rem;
}
.footer-wrap {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 2.5rem;
}
.site-footer h4,
.site-footer .footer-col-title {
  color: var(--text-inverse);
  font-size: 0.88rem;
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}
.site-footer p, .site-footer li { color: #9FAFBB; font-size: 0.9rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 0.5rem; }
.site-footer a { color: #C5D1DA; }
.site-footer a:hover { color: var(--brand-accent); text-decoration: none; }
.footer-bottom {
  max-width: var(--container);
  margin: 3rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.82rem;
  color: #7A8A96;
}
@media (max-width: 780px) {
  .footer-wrap { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .footer-wrap { grid-template-columns: 1fr; }
}

/* Page hero (smaller than home hero) */
.page-hero {
  background: var(--brand-primary-light);
  padding: 3.5rem 1.25rem 3rem;
  border-bottom: 1px solid var(--border);
}
.page-hero-inner {
  max-width: var(--container);
  margin: 0 auto;
}
.page-hero .eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--brand-primary); /* 8:1 on brand-primary-light bg */
  margin-bottom: 0.75rem;
}
.page-hero h1 { margin-bottom: 0.75rem; }
.page-hero p { font-size: 1.1rem; max-width: 720px; margin-bottom: 0; }

/* Timeline for events */
.timeline {
  max-width: 820px;
  margin: 0 auto;
  padding-left: 1.5rem;
  border-left: 2px solid var(--border-strong);
}
.timeline-item {
  position: relative;
  padding: 0 0 1.75rem 1.5rem;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -0.6rem;
  top: 0.25rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--brand-accent);
  border: 3px solid var(--surface);
  box-shadow: 0 0 0 2px var(--brand-accent);
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item time {
  display: block;
  font-size: 0.82rem;
  color: #096B5F; /* darkened for 4.5:1 on surface-alt */
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.35rem;
}
.timeline-item h4 { margin-bottom: 0.25rem; }
.timeline-item p { margin: 0; font-size: 0.9rem; }

/* Spacing helpers */
.mt-0 { margin-top: 0; }
.mt-2 { margin-top: 1rem; }
.mt-4 { margin-top: 2rem; }
.mb-0 { margin-bottom: 0; }
.text-center { text-align: center; }
.muted { color: var(--text-muted); }

/* Body offset for fixed banner */
body {
  padding-top: calc(var(--banner-h));
}