/* public/styles.css */
:root {
  --bg: #fafaf7;
  --surface: #ffffff;
  --text: #1d2327;
  --muted: #6b7280;
  --border: #e5e7eb;

  --accent: #1f6feb;
  --accent-hover: #1a5dc7;

  --available-bg: #ffffff;
  --available-border: #e5e7eb;

  /* The "booked" color is overridable per-instance via the admin settings.
     The server injects a <style> rule that overrides --booked-bg at runtime. */
  --booked-bg: #b91c1c;          /* red — clearly "unavailable" */
  --booked-bg-soft: #fecaca;
  --booked-text: #ffffff;

  --past-bg: #f3f4f6;
  --past-text: #9ca3af;

  --rate-text: #111827;
}

* { 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;
}

.site-header {
  text-align: center;
  padding: 32px 16px 16px;
}
.site-header h1 { margin: 0 0 4px; font-size: 28px; font-weight: 600; }
.site-header .tagline { margin: 0; color: var(--muted); font-size: 14px; }

main { max-width: 1320px; margin: 0 auto; padding: 0 16px 48px; }

/* ---------- Legend ---------- */
.legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px 24px;
  padding: 16px 0 8px;
  font-size: 13px;
  color: var(--muted);
}
.legend-item { display: inline-flex; align-items: center; gap: 6px; }
.swatch {
  display: inline-block;
  width: 18px; height: 18px;
  border: 1px solid var(--border);
  border-radius: 3px;
}
.swatch-available { background: var(--available-bg); }
.swatch-booked { background: var(--booked-bg); border-color: var(--booked-bg); }
.swatch-half {
  background: linear-gradient(
    to bottom right,
    var(--booked-bg) 0%, var(--booked-bg) 49.5%,
    transparent 50.5%, transparent 100%
  );
}
.swatch-past { background: var(--past-bg); }

/* ---------- Controls ---------- */
.calendar-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 8px 0 24px;
}
.nav-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 20px;
  width: 36px; height: 36px;
  border-radius: 50%;
  cursor: pointer;
  line-height: 1;
}
.nav-btn:hover { background: #f3f4f6; }
.range-label { font-size: 15px; color: var(--muted); min-width: 240px; text-align: center; }

/* ---------- Calendar grid ----------
   Layout strategy: 3 columns on desktop (so 6 months = 2 rows of 3),
   2 columns on tablet, 1 on phone. We also constrain the max grid width
   so individual month cards don't get absurdly wide on ultra-wide screens. */
.calendar-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  max-width: 1280px;
  margin: 0 auto;
}
@media (min-width: 720px) {
  .calendar-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1080px) {
  .calendar-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.month {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
}
.month-title {
  text-align: center;
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 12px;
}
.weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  font-size: 11px;
  color: var(--muted);
  text-align: center;
  margin-bottom: 6px;
}
.weekdays span { padding: 4px 0; }

.days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}

.day {
  position: relative;
  aspect-ratio: 1 / 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  background: var(--available-bg);
  border: 1px solid var(--available-border);
  border-radius: 4px;
  overflow: hidden;
}
.day.empty { background: transparent; border: none; }

.day .date-num {
  position: relative; z-index: 2;
  font-weight: 500;
  color: var(--text);
}
.day .rate {
  position: relative; z-index: 2;
  font-size: 10.5px;
  font-weight: 600;
  color: var(--rate-text);
  margin-top: 2px;
}

/* Fully-booked night: solid color, white text. */
.day.booked {
  background: var(--booked-bg);
  border-color: var(--booked-bg);
}
.day.booked .date-num { color: var(--booked-text); }

/* Half-shaded states.
   The split is along the day's diagonal: AM = upper-left triangle,
   PM = lower-right triangle. Using a hard-stop linear-gradient creates
   a clean two-tone fill so a check-out (AM) day and a check-in (PM) day
   look opposite to each other.
*/
.day.half-am {
  background: linear-gradient(
    to bottom right,
    var(--booked-bg) 0%, var(--booked-bg) 49.5%,
    var(--available-bg) 50.5%, var(--available-bg) 100%
  );
}
.day.half-pm {
  background: linear-gradient(
    to bottom right,
    var(--available-bg) 0%, var(--available-bg) 49.5%,
    var(--booked-bg) 50.5%, var(--booked-bg) 100%
  );
}
/* Same-day turnover: AM blocked AND PM blocked, but the day itself is
   still a valid check-in/out moment. We show both halves shaded, which
   visually equals "fully booked" — but we differentiate by a thin
   diagonal gap. */
.day.half-both {
  background:
    linear-gradient(
      to bottom right,
      var(--booked-bg) 0%, var(--booked-bg) 48%,
      #ffffff 48%, #ffffff 52%,
      var(--booked-bg) 52%, var(--booked-bg) 100%
    );
}

.day.past {
  background: var(--past-bg);
  border-color: var(--past-bg);
  color: var(--past-text);
}
.day.past .date-num { color: var(--past-text); }
.day.past .rate { display: none; }

.day.today {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

/* Make the date number readable on dark/half backgrounds by adding a
   subtle text shadow on shaded days. */
.day.booked .date-num,
.day.half-am .date-num,
.day.half-pm .date-num,
.day.half-both .date-num {
  text-shadow: 0 1px 1px rgba(0,0,0,0.25);
}
.day.half-am .date-num,
.day.half-pm .date-num,
.day.half-both .date-num {
  color: #1f2937;
}
.day.half-pm .date-num { color: #1f2937; }

/* ---------- Status messages ---------- */
.status-msg {
  text-align: center;
  padding: 24px;
  color: var(--muted);
}
.status-msg.error { color: #b91c1c; }

.site-footer {
  text-align: center;
  padding: 24px 16px 32px;
  font-size: 13px;
  color: var(--muted);
}
.site-footer a { color: var(--muted); }

/* ===========================================================
   Admin page
   =========================================================== */
.admin-shell {
  max-width: 720px;
  margin: 40px auto;
  padding: 0 16px;
}
.admin-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px 28px;
  margin-bottom: 20px;
}
.admin-card h2 {
  margin: 0 0 4px;
  font-size: 18px;
}
.admin-card .card-desc {
  color: var(--muted);
  font-size: 13px;
  margin: 0 0 20px;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  margin-bottom: 16px;
}
.field-row label {
  font-size: 13px;
  font-weight: 500;
}
.field-row .hint {
  font-size: 12px;
  color: var(--muted);
}
.field-row input,
.field-row select {
  width: 100%;
  padding: 8px 10px;
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  font-family: inherit;
}

.btn {
  display: inline-block;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary {
  background: #fff;
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover { background: #f3f4f6; }
.btn-danger {
  background: #fff;
  color: #b91c1c;
  border-color: #fecaca;
}

.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }

.flash {
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 13px;
  margin-bottom: 16px;
}
.flash.ok { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.flash.err { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }

.login-shell {
  max-width: 380px;
  margin: 80px auto;
  padding: 0 16px;
}

.kbd {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 12.5px;
  background: #f3f4f6;
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

@media (max-width: 480px) {
  .calendar-grid { gap: 16px; }
  .month { padding: 12px; }
  .day .rate { font-size: 9.5px; }
}