/* Pass The Seal Study Planner — clean, warm, inviting. No frameworks. */
:root {
  --navy: #16294d;
  --navy-dark: #0f1e3a;
  --red: #c8102e;
  --green: #1fae5f;
  --green-soft: #e6f6ec;
  --yellow: #ffdd33;
  --bg: #f4f6fa;
  --card: #ffffff;
  --text: #1c2434;
  --muted: #5b6577;
  --border: #dde3ec;
  --radius: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.topbar {
  background: var(--navy);
  color: #fff;
  padding: 20px 16px;
  display: flex;
  gap: 14px;
  align-items: center;
}

.topbar .logo { border-radius: 12px; flex-shrink: 0; }
.topbar h1 { margin: 0; font-size: 1.35rem; line-height: 1.2; }
.topbar .tagline { margin: 2px 0 0; color: #c7d0e0; font-size: 0.95rem; }

main { max-width: 720px; margin: 0 auto; padding: 16px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: 0 1px 3px rgba(22, 41, 77, 0.06);
}

h2 { margin: 0 0 12px; font-size: 1.15rem; }
.muted { color: var(--muted); }
.fineprint { color: var(--muted); font-size: 0.85rem; text-align: center; padding: 8px 16px 32px; }
.fineprint a { color: var(--navy); }

label { display: block; font-weight: 600; margin: 14px 0 4px; }
input, select {
  width: 100%;
  font-size: 1rem;
  padding: 11px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus { outline: 2px solid var(--navy); outline-offset: 1px; }

.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 480px) { .row { grid-template-columns: 1fr; } }

.btn {
  font-size: 1rem;
  font-weight: 600;
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--navy);
  cursor: pointer;
  margin-top: 16px;
}
.btn.primary { background: var(--red); border-color: var(--red); color: #fff; }
.btn:disabled { opacity: 0.6; cursor: wait; }
.btn.link { border: none; background: none; padding: 8px 4px; color: var(--navy); text-decoration: underline; }

.message {
  margin-top: 14px;
  padding: 10px 12px;
  border-radius: 10px;
  background: #fff4e0;
  border: 1px solid #f0d48a;
}
.message.error { background: #fdecec; border-color: #f0a8a8; }
.message.ok { background: var(--green-soft); border-color: #a8dcbd; }

.hidden { display: none !important; }

.signed-in-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.countdown { text-align: center; background: var(--navy); color: #fff; border-color: var(--navy); }
.countdown-number { font-size: 3.2rem; font-weight: 800; line-height: 1; }
.countdown-label { font-size: 1.1rem; color: #c7d0e0; }
.countdown-detail { color: #c7d0e0; }
.save-state { display: block; min-height: 1.2em; font-size: 0.85rem; color: #9fd8b4; margin-top: 6px; }

.tasks { list-style: none; margin: 12px 0 0; padding: 0; }
.tasks li { margin-bottom: 10px; }
.tasks label {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-weight: 500;
  margin: 0;
  cursor: pointer;
}
.tasks input[type="checkbox"] { width: 22px; height: 22px; margin-top: 1px; accent-color: var(--green); flex-shrink: 0; }
.tasks label.done span { text-decoration: line-through; color: var(--muted); }

.banner {
  background: var(--green-soft);
  border: 1px solid #a8dcbd;
  color: #14663a;
  padding: 10px 12px;
  border-radius: 10px;
  margin-bottom: 12px;
  font-weight: 600;
}

.week-group { margin-bottom: 18px; }
.week-group h3 { margin: 0 0 8px; font-size: 1rem; color: var(--navy); }
.day-row {
  display: flex;
  gap: 10px;
  padding: 8px 0;
  border-top: 1px solid var(--border);
  font-size: 0.95rem;
}
.day-row .day-date { min-width: 92px; font-weight: 600; flex-shrink: 0; }
.day-row .day-phase { color: var(--red); font-weight: 600; margin-right: 4px; }
.day-row.today { background: var(--green-soft); border-radius: 8px; padding: 8px; margin: 0 -8px; }

.exam-day {
  background: var(--yellow);
  border-radius: 10px;
  padding: 12px;
  font-weight: 600;
  text-align: center;
}

.actions { display: flex; flex-wrap: wrap; gap: 0 12px; }
.actions .btn { flex: 1 1 200px; }

.tabs { display: flex; gap: 8px; margin: 14px 0 4px; }
.tab {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 999px;
  padding: 8px 16px;
  cursor: pointer;
  font-weight: 600;
  color: var(--navy);
}
.tab.active { background: var(--navy); color: #fff; border-color: var(--navy); }
.install-steps { padding-left: 22px; }
.install-steps li { margin-bottom: 6px; }