:root {
  --navy:       #1c3c63;   /* celeste oscuro (fondo) */
  --navy-2:     #21436f;   /* end del degradado, oscurecido para mejor contraste */
  --teal:       #74ACDF;   /* celeste bandera (acento) */
  --teal-dark:  #5a96cf;
  --bg:         #f0f4f8;
  --card:       #ffffff;
  --text:       #1e293b;
  --muted:      #5b6675;   /* gris tenue oscurecido para pasar contraste 4.5:1 */
  --border:     #e2e8f0;
}

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

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Navbar ──────────────────────────────────────────────── */
.navbar {
  background: var(--navy);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-logo {
  font-family: 'Poppins', sans-serif;
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
  flex-shrink: 0;
  text-decoration: none;
}
.nav-logo span { color: var(--teal); }

.nav-links {
  display: flex;
  gap: 1.5rem;
  flex: 1;
}
.nav-links a {
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 0.15s;
}
.nav-links a:hover { color: #fff; }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

#last-update {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
}

.btn-primary {
  background: var(--teal);
  border: none;
  color: var(--navy);
  padding: 0.42rem 1.1rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  font-family: 'Inter', sans-serif;
  white-space: nowrap;
}
.btn-primary:hover   { background: var(--teal-dark); }
.btn-primary:active  { transform: scale(0.97); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-primary.full-width { width: 100%; }
.btn-primary.btn-sm     { padding: 0.35rem 0.9rem; font-size: 0.82rem; }

.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.75);
  padding: 0.38rem 0.9rem;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  font-family: 'Inter', sans-serif;
  white-space: nowrap;
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.5); color: #fff; }

.user-email {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.6);
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  background:
    radial-gradient(ellipse at 75% 40%, rgba(0,201,177,0.1) 0%, transparent 55%),
    linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  padding: 4.5rem 1.5rem 4rem;
  color: #fff;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2.75rem;
}

.hero-eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #9fc6ea;   /* celeste más claro: pasa 4.5:1 en todo el degradado */
  margin-bottom: 0.6rem;
}

.hero-text h1 {
  font-family: 'Poppins', sans-serif;
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.5px;
}
.hero-text h1 em {
  color: var(--teal);
  font-style: normal;
}

.hero-sub {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.75);
  margin-top: 0.75rem;
}

/* Hero stats */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(175px, 1fr));
  gap: 1rem;
}

.hero-stat {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.09);
  border-top: 2px solid var(--teal);
  border-radius: 10px;
  padding: 1.1rem 1.25rem 1rem;
  transition: background 0.2s;
}
.hero-stat:hover { background: rgba(255,255,255,0.08); }

.hero-stat-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.75);
  margin-bottom: 0.45rem;
}

.hero-stat-value {
  font-family: 'Poppins', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--teal);
  line-height: 1;
}
.hero-stat-value.placeholder { color: rgba(255,255,255,0.15); font-size: 1rem; }

.hero-stat-unit {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.7);
  margin-top: 0.3rem;
}

/* ── Charts section ──────────────────────────────────────── */
.charts-section {
  flex: 1;
  padding: 3rem 1.5rem 3.5rem;
}

.charts-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  margin-bottom: 1.5rem;
}
.section-header h2 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
}
.section-header p {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.2rem;
}

/* Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

/* ── Menú scrolleable de categorías (página Datos) ───────── */
.cat-menu {
  position: sticky;
  top: 64px;                 /* debajo del navbar */
  z-index: 50;
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 0.85rem 0;
  margin-bottom: 0.5rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}
.cat-menu::-webkit-scrollbar { height: 6px; }
.cat-menu::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }

.cat-chip {
  flex: 0 0 auto;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.15s;
}
.cat-chip:hover { border-color: var(--celeste); color: var(--navy); }
.cat-chip.active {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

.category-section { scroll-margin-top: 120px; }

/* ── Card ────────────────────────────────────────────────── */
.card {
  background: var(--card);
  border-radius: 12px;
  padding: 1.25rem 1.3rem 1.3rem;
  border: 1px solid var(--border);
  border-top: 3px solid var(--card-color, #2563eb);
  box-shadow: 0 1px 3px rgba(0,0,0,0.05), 0 4px 16px rgba(0,0,0,0.04);
  transition: box-shadow 0.2s, transform 0.2s;
}
.card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.09), 0 12px 32px rgba(0,0,0,0.06);
  transform: translateY(-2px);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.2rem;
}

.card-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.badge {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--card-color, #2563eb);
  white-space: nowrap;
  flex-shrink: 0;
}
.badge.muted { color: var(--muted); font-weight: 500; }
.badge.error { color: #dc2626; }

.card-meta {
  font-size: 0.7rem;
  color: var(--muted);
  margin-bottom: 0.9rem;
  min-height: 1em;
}

.chart-wrap {
  height: 170px;
  position: relative;
}

/* Skeleton */
.skeleton {
  position: absolute;
  inset: 0;
  border-radius: 8px;
  background: linear-gradient(90deg, #f1f5f9 25%, #e8edf3 50%, #f1f5f9 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
}
@keyframes shimmer {
  0%   { background-position:  200% 0; }
  100% { background-position: -200% 0; }
}

.chart-error {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  font-size: 0.82rem;
  color: #dc2626;
  background: #fef2f2;
  border-radius: 8px;
}

/* ── Footer ──────────────────────────────────────────────── */
footer {
  background: var(--navy);
  color: rgba(255,255,255,0.7);
  padding: 2rem 1.5rem;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-logo {
  font-family: 'Poppins', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.footer-logo span { color: var(--teal); }

.footer-desc {
  font-size: 0.8rem;
  flex: 1;
}

.footer-links {
  display: flex;
  gap: 1.25rem;
}
.footer-links a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: 0.8rem;
  transition: color 0.15s;
}
.footer-links a:hover { color: var(--teal); }

/* ── Card bloqueada ──────────────────────────────────────── */
.card-locked {
  opacity: 0.92;
}

.locked-wrap {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
}

.locked-bg {
  height: 100%;
  background: repeating-linear-gradient(
    135deg,
    #e8edf3 0px, #e8edf3 10px,
    #f1f5f9 10px, #f1f5f9 20px
  );
  filter: blur(1px);
}

.locked-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(2px);
  text-align: center;
  padding: 1rem;
}

.locked-overlay svg {
  color: var(--muted);
  opacity: 0.7;
}

.locked-overlay p {
  font-size: 0.8rem;
  color: var(--muted);
  max-width: 200px;
  line-height: 1.4;
}

/* ── Modal ───────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13, 27, 46, 0.65);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: #fff;
  border-radius: 16px;
  padding: 2rem;
  width: 100%;
  max-width: 400px;
  position: relative;
  box-shadow: 0 24px 64px rgba(0,0,0,0.2);
  transform: translateY(8px);
  transition: transform 0.2s;
}

.modal-overlay.active .modal { transform: translateY(0); }

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 1.4rem;
  color: var(--muted);
  cursor: pointer;
  line-height: 1;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  transition: color 0.15s;
}
.modal-close:hover { color: var(--text); }

.modal-header { margin-bottom: 1.25rem; }
.modal-header h3 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
}
.modal-header p {
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

.modal-tabs {
  display: flex;
  gap: 0;
  background: var(--bg);
  border-radius: 8px;
  padding: 3px;
  margin-bottom: 1.25rem;
}

.tab-btn {
  flex: 1;
  background: none;
  border: none;
  padding: 0.45rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.15s;
  font-family: 'Inter', sans-serif;
}
.tab-btn.active {
  background: #fff;
  color: var(--text);
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.auth-error {
  background: #fef2f2;
  color: #dc2626;
  border-radius: 6px;
  padding: 0.6rem 0.75rem;
  font-size: 0.82rem;
  margin-bottom: 1rem;
  display: none;
}
.auth-error:not(:empty) { display: block; }

.form-group {
  margin-bottom: 0.85rem;
}
.form-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.35rem;
}
.form-group input {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: 'Inter', sans-serif;
  color: var(--text);
  transition: border-color 0.15s;
  outline: none;
}
.form-group input:focus { border-color: var(--teal); }

#auth-form .btn-primary { margin-top: 0.5rem; }

.modal-footer-text {
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 1rem;
}
.modal-footer-text a {
  color: var(--primary, #2563eb);
  text-decoration: none;
  font-weight: 600;
}
.modal-footer-text a:hover { text-decoration: underline; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 640px) {
  .grid              { grid-template-columns: 1fr; }
  .nav-links         { display: none; }
  .hero-stats        { grid-template-columns: repeat(2, 1fr); }
  .footer-inner      { flex-direction: column; align-items: flex-start; }
  .btn-ghost         { display: none; }
}