:root {
  --ink: #1d3b2a;          /* deep pine */
  --ink-soft: #3c5c4a;
  --paper: #f6f8f5;
  --card: #ffffff;
  --line: #d9e2da;
  --accent: #2f7d4f;       /* bike green */
  --accent-dark: #256240;
  --warn-bg: #fdf3e0;
  --warn-line: #e8c77a;
  --warn-ink: #6b4e12;
  --ok: #2f7d4f;
  --err: #b23b2e;
  --shadow: 0 1px 3px rgba(29, 59, 42, .08), 0 4px 14px rgba(29, 59, 42, .06);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  background: linear-gradient(180deg, #eef4ee 0%, var(--paper) 220px);
  color: var(--ink);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }

.topbar {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .8);
  backdrop-filter: blur(6px);
}
.topbar .wrap {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 8px; padding-top: 14px; padding-bottom: 14px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 14px; height: 14px; border-radius: 4px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  display: inline-block;
}
h1 { font-size: 1.15rem; margin: 0; letter-spacing: -.01em; }
h2 { font-size: 1.5rem; margin: 28px 0 6px; letter-spacing: -.02em; }
.lede { color: var(--ink-soft); margin: 0 0 22px; }

nav a {
  color: var(--ink-soft); text-decoration: none; font-weight: 600;
  font-size: .95rem; padding: 8px 14px; border-radius: 6px;
}
nav a.active { color: var(--accent-dark); background: #e4efe6; }
nav a:focus-visible, button:focus-visible, input:focus-visible, .day:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}

.banner {
  margin: 20px 0 0; padding: 14px 16px; border-radius: 8px;
  background: var(--warn-bg); border: 1px solid var(--warn-line);
  color: var(--warn-ink); font-size: .95rem; line-height: 1.5;
}
.banner code { background: rgba(0,0,0,.05); padding: 1px 5px; border-radius: 4px; }

.hidden { display: none !important; }

/* Day picker */
.day-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(104px, 1fr));
  gap: 10px; margin: 4px 0 24px;
}
.day {
  background: var(--card); border: 1px solid var(--line); border-radius: 8px;
  padding: 12px 8px; text-align: center; cursor: pointer;
  font: inherit; transition: border-color .15s, box-shadow .15s, transform .15s;
  box-shadow: var(--shadow);
}
.day:hover { transform: translateY(-2px); border-color: var(--accent); }
.day[aria-checked="true"] {
  border-color: var(--accent); background: #e9f4ec;
  box-shadow: 0 0 0 2px var(--accent);
}
.day .dow { font-weight: 700; font-size: .85rem; color: var(--accent-dark); }
.day .dnum { font-size: 1.35rem; font-variant-numeric: tabular-nums; }
.day .mon { font-size: .8rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .05em; }

/* Form */
#booking-form { max-width: 460px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: 5px; }
.field input {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line);
  border-radius: 6px; font: inherit; background: #fff; color: var(--ink);
}
.field input:focus { border-color: var(--accent); }
.hint { font-weight: 400; color: var(--ink-soft); font-size: .85rem; }
button {
  font: inherit; font-weight: 600; color: #fff; background: var(--accent);
  border: none; border-radius: 6px; padding: 11px 20px; cursor: pointer;
  transition: background .15s;
}
button:hover { background: var(--accent-dark); }
button:disabled { background: #9db8a7; cursor: not-allowed; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; }
#btn-signout { background: transparent; color: var(--ink-soft); border: 1px solid var(--line); }
#btn-signout:hover { background: #eef2ee; }

.msg { min-height: 1.4em; margin: 12px 0 0; font-size: .95rem; }
.msg.ok { color: var(--ok); font-weight: 600; }
.msg.err { color: var(--err); font-weight: 600; }

/* Owner */
.owner-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
#bookings-tablewrap { margin-top: 18px; overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
th { color: var(--ink-soft); font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; }
td.num { font-variant-numeric: tabular-nums; }
tr.done td { color: #7d8b81; }
.badge {
  display: inline-block; font-size: .75rem; font-weight: 700; padding: 2px 8px;
  border-radius: 999px; background: #e4efe6; color: var(--accent-dark);
}
.badge.pending { background: #fdf3e0; color: var(--warn-ink); }
.mini {
  font-size: .8rem; padding: 6px 10px; background: transparent;
  color: var(--ink-soft); border: 1px solid var(--line); border-radius: 6px;
}
.mini:hover { background: #eef2ee; }
.mini.danger { color: var(--err); }
.mini.danger:hover { background: #fbeae7; }
.empty { color: var(--ink-soft); padding: 24px 0; }

.foot { margin: 48px auto 32px; font-size: .85rem; color: var(--ink-soft); }

@media (max-width: 480px) {
  .topbar .wrap { flex-direction: column; align-items: flex-start; }
  .day-grid { grid-template-columns: repeat(auto-fill, minmax(84px, 1fr)); }
}