:root {
  --azul: #002d72;        /* azul noche institucional (dominante) */
  --azul-claro: #e7edf7;
  --bordo: #7f0720;       /* acento institucional */
  --ink: #1c2532;
  --muted: #5b6573;
  --line: #e3e8f0;
  --bg: #f5f7fa;
  --card: #ffffff;
}

* { box-sizing: border-box; }

html, body { height: 100%; margin: 0; }

body {
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  display: grid;
  place-items: center;
  padding: 28px 20px;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Fondo gris clarísimo con patrón geométrico casi imperceptible */
.bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(900px 500px at 12% -10%, rgba(0, 45, 114, 0.06), transparent 60%),
    radial-gradient(800px 600px at 110% 120%, rgba(127, 7, 32, 0.05), transparent 55%),
    var(--bg);
}
.bg::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0, 45, 114, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 45, 114, 0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(circle at 50% 40%, #000 0%, transparent 78%);
          mask-image: radial-gradient(circle at 50% 40%, #000 0%, transparent 78%);
  opacity: 0.5;
}

.page {
  position: relative; z-index: 1;
  width: min(960px, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 34px 40px 22px;
  box-shadow: 0 18px 50px rgba(0, 45, 114, 0.10);
  display: flex;
  flex-direction: column;
  animation: rise 0.6s ease both;
}

@keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* HEADER */
.head { display: flex; align-items: center; gap: 14px; }
.logo {
  width: 56px; height: 56px; object-fit: contain; flex: 0 0 auto;
  border-radius: 10px;
}
.head-text { display: flex; flex-direction: column; line-height: 1.3; }
.brand {
  font-weight: 800; font-size: 17px; letter-spacing: 0.3px; color: var(--azul);
}
.sub { font-size: 12.5px; color: var(--muted); }
.sub:last-child { color: var(--bordo); font-weight: 600; }

/* MAIN: dos columnas en desktop */
.main {
  display: grid;
  grid-template-columns: 1.25fr 0.9fr;
  gap: 40px;
  align-items: center;
  margin-top: 30px;
}

.sga {
  margin: 0;
  font-size: clamp(64px, 11vw, 104px);
  font-weight: 800;
  letter-spacing: 2px;
  line-height: 0.95;
  color: var(--azul);
}
.sga-sub {
  margin: 8px 0 0;
  font-size: clamp(17px, 2.4vw, 22px);
  font-weight: 600;
  color: var(--ink);
}
.tagline {
  margin: 14px 0 0;
  font-size: 15px; color: var(--muted); line-height: 1.55; max-width: 46ch;
}
.message {
  margin: 22px 0 0;
  font-size: 15px; color: var(--ink); line-height: 1.65; max-width: 52ch;
}
.message-soft { margin: 10px 0 0; font-size: 14px; color: var(--muted); }

.badge {
  display: inline-flex; align-items: center; gap: 9px;
  margin-top: 22px;
  font-size: 13.5px; font-weight: 600; color: var(--azul);
  background: var(--azul-claro);
  border: 1px solid rgba(0, 45, 114, 0.20);
  padding: 8px 14px; border-radius: 999px;
}
.dot {
  width: 9px; height: 9px; border-radius: 50%; background: var(--bordo);
  animation: pulse 1.9s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(127, 7, 32, 0.5); }
  70%  { box-shadow: 0 0 0 9px rgba(127, 7, 32, 0); }
  100% { box-shadow: 0 0 0 0 rgba(127, 7, 32, 0); }
}

/* COLUMNA VISUAL: tarjeta abstracta de asistencia */
.col-art { display: flex; justify-content: center; }
.panel {
  width: 100%; max-width: 280px;
  background: linear-gradient(180deg, #ffffff, #f7f9fd);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px 22px 20px;
  box-shadow: 0 12px 30px rgba(0, 45, 114, 0.10);
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  animation: floaty 6s ease-in-out infinite;
}
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }

.clock { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.clock-time {
  font-size: 26px; font-weight: 700; color: var(--azul);
  font-variant-numeric: tabular-nums; letter-spacing: 1px;
}
.row {
  display: flex; align-items: center; gap: 9px;
  font-size: 13.5px; color: var(--ink); font-weight: 500;
}
.check {
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--azul); display: grid; place-items: center;
}
.sys {
  font-size: 14px; font-weight: 700; color: var(--azul); letter-spacing: 0.4px;
}
.meta { font-size: 12px; color: var(--muted); }

/* FOOTER */
.foot {
  margin-top: 30px; padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 12px; color: var(--muted); text-align: center;
}

/* RESPONSIVE: una columna en móvil */
@media (max-width: 760px) {
  .page { padding: 26px 22px 18px; }
  .main { grid-template-columns: 1fr; gap: 26px; text-align: left; }
  .col-art { order: 2; }
  .sga { text-align: left; }
  .panel { max-width: 260px; }
}

@media (prefers-reduced-motion: reduce) {
  .page, .panel, .dot { animation: none !important; }
}