:root {
    --color-bg: #f7f7f5;
    --color-text: #222;
    --color-muted: #666;
    --color-border: #ddd;
    --color-primary: #1f5c3d;
    --color-primary-dark: #143f2a;
    --color-available: #1f7a3d;
    --color-reserved: #8a6d1f;
    --color-fulfilled: #555;
    --color-danger: #a4262c;
    --color-danger-bg: #fbeaea;
    --color-success-bg: #eaf6ee;
}

* { box-sizing: border-box; }

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

.wrap {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.site-header {
    background: var(--color-primary);
    color: #fff;
    padding: 14px 0;
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; }
.site-header .brand { color: #fff; font-weight: 700; font-size: 1.2rem; text-decoration: none; }
.site-header nav a { color: #fff; text-decoration: none; margin-left: 16px; }
.site-header nav a:hover { text-decoration: underline; }

main.wrap { padding-top: 24px; padding-bottom: 60px; min-height: 60vh; }

.site-footer { padding: 20px 0; color: var(--color-muted); font-size: 0.9rem; border-top: 1px solid var(--color-border); }
.site-footer a { color: var(--color-muted); }

h1 { margin-top: 0; }

.flash { padding: 12px 16px; border-radius: 6px; margin-bottom: 20px; }
.flash-success { background: var(--color-success-bg); border: 1px solid var(--color-available); }
.flash-error { background: var(--color-danger-bg); border: 1px solid var(--color-danger); }
.flash-info { background: #eef3fb; border: 1px solid #34618f; }

.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 20px;
}
.filters label { display: block; font-size: 0.85rem; color: var(--color-muted); margin-bottom: 4px; }
.filters select, .filters input[type=text] { padding: 6px 8px; border: 1px solid var(--color-border); border-radius: 4px; min-width: 150px; }
.filters .filter-actions { align-self: flex-end; }

table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--color-border); vertical-align: top; }
th { background: #efefec; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--color-muted); }
tr:hover td { background: #fafaf8; }

.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 0.8rem; font-weight: 600; }
.badge-available { background: #eaf6ee; color: var(--color-available); }
.badge-reserved { background: #fbf3e0; color: var(--color-reserved); }
.badge-fulfilled { background: #eee; color: var(--color-fulfilled); }

.flag { color: var(--color-danger); font-weight: 600; }

.btn {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 6px;
    background: var(--color-primary);
    color: #fff;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
}
.btn:hover { background: var(--color-primary-dark); }
.btn:disabled, .btn.disabled { background: #999; cursor: not-allowed; }
.btn-secondary { background: #fff; color: var(--color-primary); border: 1px solid var(--color-primary); }
.btn-danger { background: var(--color-danger); }
.btn-small { padding: 4px 10px; font-size: 0.8rem; }

form.stacked label { display: block; margin-bottom: 14px; }
form.stacked label span { display: block; font-weight: 600; margin-bottom: 4px; }
form.stacked input[type=text], form.stacked input[type=email], form.stacked input[type=tel], form.stacked textarea, form.stacked select {
    width: 100%; max-width: 480px; padding: 8px 10px; border: 1px solid var(--color-border); border-radius: 4px; font-size: 1rem;
}
form.stacked textarea { max-width: 640px; }

.card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 24px;
    max-width: 640px;
}

.stat-grid { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 24px; }
.stat-box { background: #fff; border: 1px solid var(--color-border); border-radius: 8px; padding: 16px 20px; min-width: 120px; }
.stat-box .num { font-size: 1.8rem; font-weight: 700; display: block; }
.stat-box .label { color: var(--color-muted); font-size: 0.85rem; }

.table-scroll { overflow-x: auto; }

.admin-nav { margin-bottom: 20px; }
.admin-nav a { margin-right: 16px; }

.text-muted { color: var(--color-muted); }
.qr-thumb { width: 60px; height: 60px; }

@media (max-width: 700px) {
    table, thead, tbody, th, td, tr { display: block; }
    thead { display: none; }
    tr { border-bottom: 2px solid var(--color-border); padding: 8px 0; }
    td { border-bottom: none; padding: 4px 0; }
    td::before { content: attr(data-label) ": "; font-weight: 600; color: var(--color-muted); }
}