:root {
  --green: #1f6f43;
  --green-dark: #14512f;
  --green-light: #e7f2eb;
  --ink: #1f2937;
  --muted: #6b7280;
  --line: #d7dee3;
  --danger: #b3261e;
  --bg: #f4f6f5;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
}
header.topbar {
  background: var(--green);
  color: #fff;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 24px;
  height: 56px;
}
header.topbar .brand { font-weight: 700; font-size: 18px; letter-spacing: .3px; }
header.topbar nav { display: flex; gap: 16px; }
header.topbar nav a {
  color: #dff0e6; text-decoration: none; font-size: 14px; padding: 6px 10px; border-radius: 6px;
}
header.topbar nav a:hover, header.topbar nav a.active { background: var(--green-dark); color: #fff; }
main { max-width: 1080px; margin: 24px auto; padding: 0 20px; }
h1 { font-size: 22px; margin: 0 0 4px; }
.sub { color: var(--muted); font-size: 13px; margin: 0 0 18px; }
.toolbar { display: flex; gap: 12px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }

button, .btn {
  font: inherit; cursor: pointer; border: 1px solid var(--green);
  background: var(--green); color: #fff; padding: 8px 14px; border-radius: 7px;
}
button.secondary { background: #fff; color: var(--green); }
button.ghost { background: transparent; border-color: var(--line); color: var(--ink); }
button.danger { background: var(--danger); border-color: var(--danger); }
button:disabled { opacity: .5; cursor: not-allowed; }

label { display: block; font-size: 13px; color: var(--muted); margin: 10px 0 4px; }
input, select, textarea {
  font: inherit; width: 100%; padding: 8px 10px; border: 1px solid var(--line);
  border-radius: 7px; background: #fff;
}
input[type="date"], input[type="number"] { width: auto; }

table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); font-size: 14px; }
th { background: var(--green-light); color: var(--green-dark); font-weight: 600; }
tr:last-child td { border-bottom: none; }
.badge { display: inline-block; background: var(--green-light); color: var(--green-dark); padding: 2px 8px; border-radius: 999px; font-size: 12px; }

/* tee sheet grid */
.grid { background: #fff; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.grid table { border: none; }
.grid td.slot { padding: 4px; }
.slot-open {
  width: 100%; background: #fff; color: var(--green); border: 1px dashed var(--line);
  font-size: 12px; padding: 8px; border-radius: 6px;
}
.slot-open:hover { background: var(--green-light); border-color: var(--green); }
.slot-booked {
  background: var(--green-light); border: 1px solid var(--green); border-radius: 6px; padding: 6px 8px; font-size: 13px;
}
.slot-booked .who { font-weight: 600; }
.slot-booked .meta { color: var(--muted); font-size: 11px; }
.slot-booked .row-actions { display: flex; gap: 6px; margin-top: 4px; }
.slot-booked .row-actions button { padding: 3px 8px; font-size: 11px; }
td.timecol { white-space: nowrap; color: var(--muted); font-size: 12px; width: 70px; background: #fafbfb; }

/* modal */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.35); display: none;
  align-items: flex-start; justify-content: center; padding-top: 60px; z-index: 50;
}
.modal-backdrop.open { display: flex; }
.modal { background: #fff; border-radius: 10px; width: 440px; max-width: 92vw; padding: 20px; box-shadow: 0 10px 40px rgba(0,0,0,.2); max-height: 85vh; overflow-y: auto; }
.modal h2 { margin: 0 0 8px; font-size: 18px; }
.modal .actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 18px; }
.fieldset { border: 1px solid var(--line); border-radius: 8px; padding: 4px 14px 14px; margin-top: 14px; }
.fieldset legend { font-size: 13px; color: var(--green-dark); padding: 0 6px; }
.check-row { display: flex; align-items: center; gap: 8px; margin-top: 12px; }
.check-row input { width: auto; }
.check-row label { margin: 0; color: var(--ink); font-size: 14px; }
.hidden { display: none; }

.msg { padding: 10px 12px; border-radius: 7px; font-size: 13px; margin-top: 12px; }
.msg.warn { background: #fff4e5; color: #8a5a00; border: 1px solid #f2c98a; }
.msg.error { background: #fde8e7; color: var(--danger); border: 1px solid #f0b4b1; }

/* toast */
#toast {
  position: fixed; bottom: 20px; right: 20px; background: var(--ink); color: #fff;
  padding: 12px 16px; border-radius: 8px; font-size: 14px; display: none; z-index: 100; max-width: 360px;
}
#toast.show { display: block; }
#toast.ok { background: var(--green-dark); }
#toast.err { background: var(--danger); }