:root {
  --bg: #f4f7f5;
  --card: #ffffff;
  --text: #1d2a26;
  --muted: #5f6f69;
  --border: #d8e1dd;
  --brand: #2f6f5e;
  --brand-dark: #23564a;
  --water: #e3f2f7;
  --closed: #eceeed;
  --closed-text: #7a8580;
  --mine: #fff4d6;
  --danger: #b3261e;
  --warn-bg: #fff1e6;
  --warn-border: #f2b78b;
  --radius: 10px;
  color-scheme: light;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}

h1 { font-size: 1.5rem; margin: 0 0 0.75rem; }
h2 { font-size: 1.2rem; margin: 0 0 0.5rem; }
h3 { font-size: 1rem; margin: 1.25rem 0 0.5rem; }
p { margin: 0 0 0.75rem; }
a { color: var(--brand); }

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.nowrap { white-space: nowrap; }

/* ---------- top bar ---------- */

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  padding: 0.6rem 1rem;
  background: var(--brand);
  color: #fff;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.15rem;
}

nav { display: flex; flex-wrap: wrap; gap: 0.25rem; align-items: center; }
nav a, nav .link {
  color: #fff;
  text-decoration: none;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  font-size: 0.95rem;
}
nav a.active, nav a:hover, nav .link:hover { background: rgba(255, 255, 255, 0.15); }

.safety-strip {
  background: var(--warn-bg);
  border-bottom: 1px solid var(--warn-border);
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  text-align: center;
}

main { max-width: 960px; margin: 0 auto; padding: 1rem; }

/* ---------- cards & forms ---------- */

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
}
.card.narrow { max-width: 520px; margin-left: auto; margin-right: auto; }

label { display: block; margin-bottom: 0.75rem; font-weight: 600; font-size: 0.95rem; }
input, textarea, select {
  display: block;
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.55rem 0.65rem;
  font: inherit;
  font-weight: 400;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
}
input:focus, textarea:focus { outline: 2px solid var(--brand); outline-offset: 1px; }
input:disabled { background: #f1f3f2; color: var(--muted); }
textarea { resize: vertical; }

label.check {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  font-weight: 400;
}
label.check input { width: auto; margin-top: 0.25rem; flex: none; }

.row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }

button, .button {
  display: inline-block;
  font: inherit;
  font-size: 0.95rem;
  padding: 0.5rem 0.9rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  cursor: pointer;
  text-decoration: none;
}
button:hover, .button:hover { border-color: var(--brand); }
button:disabled { opacity: 0.6; cursor: default; }
button.primary { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }
button.primary:hover { background: var(--brand-dark); }
button.danger { color: var(--danger); }
button.danger:hover { border-color: var(--danger); }
button.link {
  background: none;
  border: none;
  padding: 0;
  color: inherit;
  text-decoration: underline;
}
nav button.link { text-decoration: none; padding: 0.35rem 0.6rem; }

.actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.5rem; }

.form-error {
  color: var(--danger);
  background: #fdecea;
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
}

.disclaimer {
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin-bottom: 0.75rem;
}
.disclaimer p:last-child { margin-bottom: 0; }

.badge {
  display: inline-block;
  background: #f2c94c;
  color: #4a3a00;
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: 999px;
  padding: 0.05rem 0.45rem;
  vertical-align: middle;
}

/* ---------- notices ---------- */

.notices { margin-bottom: 1rem; }
.notice {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  border-radius: 8px;
  padding: 0.6rem 0.9rem;
  margin-bottom: 0.5rem;
}

/* ---------- calendar ---------- */

.cal-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.cal-head h1 { margin: 0; text-align: center; flex: 1; }
.cal-head button { font-size: 1.6rem; line-height: 1; padding: 0.2rem 0.8rem; }
.today-link { display: block; margin: 0.25rem auto 0.75rem; font-size: 0.9rem; }

.grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.weekdays div { text-align: center; font-size: 0.8rem; font-weight: 700; color: var(--muted); padding: 0.25rem 0; }

.day {
  min-height: 92px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.1rem;
  text-align: left;
  padding: 0.35rem 0.4rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.78rem;
  overflow: hidden;
}
.day.empty { background: transparent; border: none; }
.day .num { font-weight: 700; font-size: 0.95rem; }
.day .count { font-weight: 700; color: var(--brand); }
.day .groups, .day .reason { color: var(--muted); }
.day .reason { overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.day .open { color: var(--muted); }
.day .closed { font-weight: 700; color: var(--closed-text); }
.day.blocked { background: var(--closed); color: var(--closed-text); }
.day.past { opacity: 0.5; }
.day.today { border: 2px solid var(--brand); }
.day.mine:not(.blocked) { background: var(--mine); }
.day:not(.blocked):not(.past):not(.empty) { background-image: linear-gradient(to top, var(--water), transparent 45%); }
.day.mine:not(.blocked) { background-image: none; }

/* ---------- day dialog ---------- */

dialog {
  width: min(560px, calc(100vw - 2rem));
  max-height: calc(100vh - 2rem);
  border: none;
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.25);
}
dialog::backdrop { background: rgba(20, 35, 30, 0.45); }
.dialog-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.dialog-head h2 { margin: 0; }
.close { border: none; font-size: 1.6rem; line-height: 1; padding: 0 0.3rem; background: none; }
.summary { margin: 0.5rem 0; }
.closed-msg { background: var(--closed); padding: 0.6rem 0.8rem; border-radius: 8px; }

.res-list { list-style: none; margin: 0 0 0.75rem; padding: 0; }
.res {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
  margin-bottom: 0.5rem;
}
.res.mine { background: var(--mine); }
.res-main { display: flex; flex-direction: column; gap: 0.1rem; min-width: 0; }
.res-main .note { font-style: italic; color: var(--muted); overflow-wrap: anywhere; }
.res-actions { display: flex; gap: 0.4rem; flex-wrap: wrap; justify-content: flex-end; }
.res-form { border-top: 1px solid var(--border); padding-top: 0.75rem; }

/* ---------- owner tools ---------- */

.weekday-checks { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; margin-bottom: 0.5rem; }
.weekday-checks label.check { margin-bottom: 0.25rem; }

.plain-list { list-style: none; padding: 0; margin: 0; }
.plain-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border);
}

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 0.45rem 0.5rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: 0.8rem; color: var(--muted); }
td button { padding: 0.25rem 0.55rem; font-size: 0.85rem; }

/* ---------- toast ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  transform: translateX(-50%);
  background: var(--text);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: 8px;
  max-width: calc(100vw - 2rem);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  z-index: 10;
}
.toast.error { background: var(--danger); }

/* ---------- phones ---------- */

@media (max-width: 600px) {
  main { padding: 0.6rem; }
  .card { padding: 1rem; }
  .grid { gap: 2px; }
  .day { min-height: 64px; padding: 0.2rem 0.25rem; font-size: 0.68rem; }
  .day .groups, .day .reason, .day .open { display: none; }
  .day .badge { font-size: 0.6rem; padding: 0 0.3rem; }
  .res { flex-direction: column; }
  .res-actions { justify-content: flex-start; }
}