:root {
    --bg: #f4f6fb;
    --card: #ffffff;
    --ink: #1f2733;
    --muted: #6b7280;
    --line: #e4e8f0;
    --brand: #2d6cdf;
    --presenza: #22a06b;
    --presenza-bg: #d9f3e7;
    --distanza: #d99000;
    --distanza-bg: #fdf0d2;
    --danger: #d64545;
    --perfect: #c9a227;
    --perfect-bg: #fbf3cf;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(20, 30, 60, .08), 0 6px 18px rgba(20, 30, 60, .05);
}

* { box-sizing: border-box; }

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

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: #eef1f7; padding: 1px 5px; border-radius: 5px; font-size: .9em; }
.muted { color: var(--muted); }

/* --- Top bar --- */
.topbar {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 10px 18px;
    background: var(--card);
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    z-index: 10;
    flex-wrap: wrap;
}
.brand { font-weight: 700; font-size: 1.05rem; }
.topbar nav { display: flex; gap: 6px; }
.topbar nav a {
    padding: 6px 12px;
    border-radius: 999px;
    color: var(--ink);
}
.topbar nav a.active { background: var(--brand); color: #fff; }
.topbar nav a:hover { text-decoration: none; background: #eef2fb; }
.topbar nav a.active:hover { background: var(--brand); }
.userbox { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.who { font-weight: 600; }
.link-btn {
    background: none; border: none; color: var(--brand);
    cursor: pointer; font-size: .95rem; padding: 0;
}
.link-btn:hover { text-decoration: underline; }

.container { max-width: 980px; margin: 0 auto; padding: 22px 16px 60px; }
.page-head h1 { margin: 0 0 4px; }
.page-head { margin-bottom: 18px; }

/* --- Cards / forms --- */
.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px;
    margin-bottom: 18px;
}
.card h2 { margin-top: 0; font-size: 1.1rem; }

.form { display: flex; flex-direction: column; gap: 12px; }
.form label { display: flex; flex-direction: column; gap: 4px; font-size: .9rem; font-weight: 600; }
.form input, .form select {
    padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px;
    font-size: 1rem; background: #fff;
}
.form input:focus, .form select:focus { outline: 2px solid var(--brand); border-color: var(--brand); }

.btn {
    border: none; border-radius: 8px; padding: 9px 16px; font-size: .95rem;
    cursor: pointer; background: #e9edf6; color: var(--ink); font-weight: 600;
}
.btn:hover { filter: brightness(.97); }
.btn.primary { background: var(--brand); color: #fff; }
.btn.small { padding: 6px 10px; font-size: .85rem; }
.btn.danger { background: var(--danger); color: #fff; }

.alert { background: #fff5f5; border: 1px solid #f3c7c7; color: #8a2b2b;
    padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; }
.alert.error { background: #fff5f5; }

/* --- Login --- */
.login-wrap { min-height: 80vh; display: flex; align-items: center; justify-content: center; }
.login-card { width: 100%; max-width: 360px; text-align: center; }
.login-card h1 { margin: 0 0 4px; }
.login-card .form { margin-top: 14px; text-align: left; }

/* --- Legend / banner --- */
.legend { display: flex; flex-wrap: wrap; gap: 16px; margin: 8px 0 16px; font-size: .9rem; }
.legend-item { display: inline-flex; align-items: center; gap: 6px; }
.swatch { width: 16px; height: 16px; border-radius: 4px; display: inline-block; border: 1px solid var(--line); }
.swatch.presenza { background: var(--presenza-bg); border-color: var(--presenza); }
.swatch.distanza { background: var(--distanza-bg); border-color: var(--distanza); }
.swatch.empty { background: #fff; }
.swatch.perfect { background: var(--perfect-bg); border-color: var(--perfect); }

.banner { margin-bottom: 16px; }
.banner .pill {
    display: inline-block; padding: 8px 14px; border-radius: 999px; font-weight: 600;
}
.banner .pill.warn { background: #fff3d6; color: #8a5a00; border: 1px solid #f0d68a; }
.banner .pill.ok { background: var(--presenza-bg); color: #14543a; border: 1px solid #a7dcc4; }

/* --- Calendar --- */
.week { margin-bottom: 22px; }
.week-head {
    display: flex; align-items: center; gap: 10px; margin-bottom: 8px; flex-wrap: wrap;
}
.week-head h3 { margin: 0; font-size: 1.02rem; }
.badge { font-size: .78rem; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.badge.green { background: var(--presenza-bg); color: #14543a; }
.badge.amber { background: var(--distanza-bg); color: #8a5a00; }
.badge.red { background: #fde2e2; color: #8a2b2b; }

.grid { width: 100%; border-collapse: separate; border-spacing: 0; }
.grid th, .grid td {
    border-bottom: 1px solid var(--line); padding: 6px; text-align: center; vertical-align: middle;
}
.grid thead th { font-size: .8rem; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
.grid .day-cell { text-align: left; white-space: nowrap; font-weight: 600; }
.grid .day-cell .wd { color: var(--muted); font-weight: 500; }
.grid tr.unconfirmed .day-cell { color: var(--ink); }
.grid tr.unconfirmed { background: #fffaf2; }

.slot-btn {
    width: 100%; min-width: 96px; border: 1px solid var(--line); background: #fff;
    border-radius: 8px; padding: 9px 6px; cursor: pointer; font-weight: 600; font-size: .88rem;
    color: var(--muted); transition: transform .04s ease;
}
.slot-btn:active { transform: scale(.97); }
.slot-btn.presenza { background: var(--presenza-bg); border-color: var(--presenza); color: #14543a; }
.slot-btn.distanza { background: var(--distanza-bg); border-color: var(--distanza); color: #8a5a00; }
.slot-btn .ico { font-size: 1rem; }

.day-confirm { font-size: .82rem; }
.day-confirm .confirmed { color: var(--presenza); font-weight: 700; }
.day-confirm button { font-size: .8rem; }

/* --- Matches --- */
.match-row {
    display: flex; align-items: center; gap: 14px; padding: 12px 14px; margin-bottom: 8px;
    background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.match-row.is-perfect { border-color: var(--perfect); background: var(--perfect-bg); }
.match-rank { font-weight: 800; font-size: 1.1rem; color: var(--muted); min-width: 34px; }
.match-main { flex: 1; min-width: 0; }
.match-when { font-weight: 700; }
.match-counts { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }
.count-chip { font-size: .8rem; padding: 2px 9px; border-radius: 999px; font-weight: 700; }
.count-chip.p { background: var(--presenza-bg); color: #14543a; }
.count-chip.d { background: var(--distanza-bg); color: #8a5a00; }
.count-chip.a { background: #eef1f7; color: var(--muted); }
.match-people { font-size: .82rem; color: var(--muted); margin-top: 4px; }
.tag-perfect {
    background: var(--perfect); color: #fff; font-size: .72rem; font-weight: 800;
    padding: 3px 10px; border-radius: 999px; text-transform: uppercase; letter-spacing: .04em;
}

/* --- Admin --- */
.inline-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); align-items: end; }
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th, .admin-table td { padding: 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; font-size: .9rem; }
.row-form { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row-form input[type=text] { padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; }
.check { display: inline-flex; align-items: center; gap: 4px; font-size: .85rem; }

@media (max-width: 640px) {
    .slot-btn { min-width: 0; padding: 9px 2px; font-size: .8rem; }
    .grid th, .grid td { padding: 4px 2px; }
    .topbar { gap: 10px; }
}