/* Reset suave */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, "Helvetica Neue", Arial, sans-serif;
  color: #e7f5ee;
  background: radial-gradient(1200px 500px at 50% 35%, rgba(20,120,70,.45), rgba(3,25,18,.9)),
              linear-gradient(180deg, #0b3d2e 0%, #05241a 100%);
  background-attachment: fixed;
}

/* Fallback */
body.fallback { background: #0b3d2e url('bg.png') center/cover no-repeat fixed; }

.shell {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: 100%;
  max-width: 720px;
  background: rgba(6, 32, 24, 0.65);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 24px;
  padding: 32px 28px;
  backdrop-filter: blur(10px) saturate(120%);
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
  text-align: center;
}

.logo { width: 112px; height: 112px; border-radius: 16px; display: block; margin: 4px auto 10px; }

h1 {
  margin: 6px 0 4px;
  font-size: clamp(26px, 3.2vw, 34px);
  letter-spacing: .4px;
}
.subtitle { margin: 0 0 18px; color: #cfe9dd; }

.cta-row {
  display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
  margin: 8px 0 10px;
}

.btn {
  appearance: none;
  border: none;
  text-decoration: none;
  padding: 14px 20px;
  font-weight: 600;
  border-radius: 12px;
  cursor: pointer;
  transition: transform .06s ease, box-shadow .2s ease, background .2s ease;
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 180px;
}
.btn.primary {
  background: linear-gradient(180deg, #2ecc71, #27ae60);
  color: #042114;
  box-shadow: 0 8px 18px rgba(46, 204, 113, .25);
}
.btn.primary:hover { transform: translateY(-1px); box-shadow: 0 12px 22px rgba(46, 204, 113, .35); }
.btn.primary:active { transform: translateY(0); }

.chip {
  display: inline-flex; align-items: center;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 14px; font-weight: 600;
  border: 1px solid rgba(0,0,0,.25);
  background: rgba(0,0,0,.2);
  color: #f9f8e1;
}
.chip.warning { background: rgba(255, 205, 60, .15); color: #ffe58a; border-color: rgba(236, 176, 24, .35); }

.notes {
  text-align: left;
  margin: 16px auto 2px;
  background: rgba(0,0,0,.2);
  border-radius: 12px;
  padding: 12px 14px;
}
.notes > summary {
  cursor: pointer;
  font-weight: 700;
  color: #fff6c2;
  list-style: none;
}
.notes > summary::-webkit-details-marker { display: none; }
.notes ul { margin: 8px 0 4px 18px; color:#d5efe0; }

.foot {
  margin-top: 18px;
  color: #b6d6c7;
  font-size: 13px;
}

/* Mobile-first */
@media (max-width: 420px) {
  .card { padding: 24px 18px; border-radius: 18px; }
  .btn { min-width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .btn { transition: none; }
}