/*
 * Estilo corporativo ICCMU para índice CORE y pantallas de autenticación.
 * Inspirado en https://iccmu.es/ — tipografía Source Sans / Slabo,
 * fondo oscuro institucional y acento rojo ICCMU (sin degradados púrpura).
 */
:root {
  --iccmu-black: #0a0a0a;
  --iccmu-ink: #1a1a1a;
  --iccmu-charcoal: #2c2c2c;
  --iccmu-muted: #6b6b6b;
  --iccmu-paper: #f7f5f2;
  --iccmu-white: #ffffff;
  --iccmu-red: #d11922;
  --iccmu-red-dark: #a8141b;
  --iccmu-border: #e4e0d8;
  --iccmu-serif: "Slabo 27px", Georgia, "Times New Roman", serif;
  --iccmu-sans: "Source Sans Pro", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

.iccmu-body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--iccmu-sans);
  color: var(--iccmu-ink);
  background:
    linear-gradient(180deg, rgba(10, 10, 10, 0.72) 0%, rgba(10, 10, 10, 0.88) 100%),
    radial-gradient(ellipse at 20% 0%, #3a1518 0%, transparent 55%),
    radial-gradient(ellipse at 80% 100%, #1a2430 0%, transparent 50%),
    var(--iccmu-black);
  background-attachment: fixed;
}

.iccmu-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.iccmu-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.35);
}

.iccmu-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: var(--iccmu-white);
}

.iccmu-brand img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  border-radius: 2px;
}

.iccmu-brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.iccmu-brand-text strong {
  font-family: var(--iccmu-serif);
  font-size: 1.15rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1.15;
}

.iccmu-brand-text span {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.65);
}

.iccmu-topbar-links a {
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.iccmu-topbar-links a:hover {
  color: var(--iccmu-white);
}

.iccmu-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1.25rem 3rem;
}

.iccmu-panel {
  width: 100%;
  max-width: 440px;
  background: var(--iccmu-white);
  border: 1px solid var(--iccmu-border);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  padding: 2.25rem 2rem 2rem;
}

.iccmu-panel--wide {
  max-width: 920px;
}

.iccmu-panel-kicker {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--iccmu-red);
  margin: 0 0 0.65rem;
}

.iccmu-panel h1 {
  font-family: var(--iccmu-serif);
  font-size: 1.85rem;
  font-weight: 400;
  color: var(--iccmu-ink);
  margin: 0 0 0.5rem;
  line-height: 1.2;
}

.iccmu-panel .lead {
  color: var(--iccmu-muted);
  font-size: 0.98rem;
  line-height: 1.55;
  margin: 0 0 1.5rem;
}

.iccmu-form-group {
  margin-bottom: 1.1rem;
}

.iccmu-form-group label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--iccmu-charcoal);
}

.iccmu-form-group input,
.iccmu-form-group .otp-input {
  width: 100%;
  padding: 0.8rem 0.95rem;
  border: 1px solid var(--iccmu-border);
  background: var(--iccmu-paper);
  font-family: var(--iccmu-sans);
  font-size: 1rem;
  color: var(--iccmu-ink);
  border-radius: 0;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.iccmu-form-group input:focus,
.iccmu-form-group .otp-input:focus {
  outline: none;
  border-color: var(--iccmu-red);
  background: var(--iccmu-white);
}

.iccmu-form-group .otp-input {
  font-size: 1.35rem;
  letter-spacing: 0.28em;
  text-align: center;
}

.iccmu-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.9rem 1.25rem;
  margin-top: 0.35rem;
  background: var(--iccmu-red);
  color: var(--iccmu-white);
  border: none;
  font-family: var(--iccmu-sans);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease;
}

.iccmu-btn:hover {
  background: var(--iccmu-red-dark);
  color: var(--iccmu-white);
}

.iccmu-alert {
  background: #fdf0f0;
  color: #8b1a1a;
  border: 1px solid #f0c0c0;
  padding: 0.75rem 0.9rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.iccmu-links {
  margin-top: 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  align-items: center;
}

.iccmu-links a,
.iccmu-links button.linkish {
  color: var(--iccmu-charcoal);
  font-size: 0.88rem;
  text-decoration: underline;
  text-underline-offset: 2px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  padding: 0;
}

.iccmu-links a:hover,
.iccmu-links button.linkish:hover {
  color: var(--iccmu-red);
}

.iccmu-footer {
  padding: 1rem 1.5rem 1.4rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

.iccmu-footer a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
}

.iccmu-footer a:hover {
  color: var(--iccmu-white);
}

/* Índice de aplicaciones */
.iccmu-apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.85rem;
  margin-top: 0.5rem;
}

.iccmu-app-card {
  display: block;
  padding: 1.15rem 1.1rem;
  background: var(--iccmu-paper);
  border: 1px solid var(--iccmu-border);
  color: var(--iccmu-ink);
  text-decoration: none;
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.iccmu-app-card:hover {
  border-color: var(--iccmu-red);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
  color: var(--iccmu-ink);
  text-decoration: none;
}

.iccmu-app-card h2 {
  font-family: var(--iccmu-serif);
  font-size: 1.25rem;
  font-weight: 400;
  margin: 0 0 0.35rem;
}

.iccmu-app-card p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--iccmu-muted);
  letter-spacing: 0.02em;
}

.iccmu-meta {
  margin-top: 1.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--iccmu-border);
  font-size: 0.82rem;
  color: var(--iccmu-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
}

.iccmu-meta strong {
  color: var(--iccmu-charcoal);
  font-weight: 600;
}

.iccmu-remember {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin: 0.85rem 0 0.25rem;
  font-size: 0.88rem;
  color: var(--iccmu-charcoal);
  text-align: left;
  cursor: pointer;
}

.iccmu-remember input {
  margin-top: 0.2rem;
}

.iccmu-hint {
  margin-top: 1rem;
  font-size: 0.82rem;
  color: var(--iccmu-muted);
}

.iccmu-qr-wrap {
  background: var(--iccmu-paper);
  border: 1px solid var(--iccmu-border);
  padding: 1rem;
  margin: 1rem auto;
  display: inline-block;
}

.iccmu-qr-wrap img {
  width: 200px;
  height: 200px;
  display: block;
}

.iccmu-secret {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.82rem;
  background: var(--iccmu-paper);
  border: 1px solid var(--iccmu-border);
  padding: 0.55rem 0.75rem;
  word-break: break-all;
  margin: 0.75rem 0 1rem;
}

.iccmu-steps {
  text-align: left;
  margin: 0 0 1rem;
  padding-left: 1.2rem;
  color: var(--iccmu-charcoal);
  font-size: 0.9rem;
  line-height: 1.5;
}

.iccmu-steps li {
  margin-bottom: 0.4rem;
}

@media (max-width: 640px) {
  .iccmu-panel {
    padding: 1.6rem 1.25rem;
  }
  .iccmu-brand-text strong {
    font-size: 1rem;
  }
  .iccmu-panel h1 {
    font-size: 1.55rem;
  }
}