*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg:       #0d1117;
    --surface:  #161b22;
    --surface2: #21262d;
    --border:   #30363d;
    --text:     #e6edf3;
    --muted:    #7d8590;
    --accent:   #388bfd;
    --yes:      #1a6c38;
    --yes-text: #4ade80;
    --maybe:    #7a5c00;
    --maybe-text: #fbbf24;
    --no:       #6e1c1c;
    --no-text:  #f87171;
    --radius:   8px;
}

body { background: var(--bg); color: var(--text); font-family: system-ui, sans-serif; min-height: 100vh; }

/* ── Nav ── */
.site-header { background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; }
.site-nav { max-width: 960px; margin: 0 auto; padding: 0.75rem 1rem; display: flex; align-items: center; gap: 1.25rem; }
.nav-logo { font-size: 1.2rem; text-decoration: none; font-weight: 700; color: var(--text); }
.nav-right { display: flex; gap: 0.75rem; align-items: center; margin-left: auto; font-size: 0.88rem; color: var(--muted); }
.nav-right a { color: var(--muted); text-decoration: none; }
.nav-right a:hover { color: var(--text); }

/* ── Page ── */
.page { max-width: 900px; margin: 0 auto; padding: 2rem 1rem; }
.page-title { font-size: 1.5rem; margin-bottom: 0.4rem; }
.page-sub { color: var(--muted); margin-bottom: 1.75rem; font-size: 0.9rem; }

/* ── Cards ── */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; margin-bottom: 1rem; }
.card h2 { font-size: 1.1rem; margin-bottom: 0.25rem; }
.card-meta { font-size: 0.82rem; color: var(--muted); margin-bottom: 0.75rem; }
.card-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.75rem; }

/* ── Forms ── */
.form-group { display: flex; flex-direction: column; gap: 0.35rem; margin-bottom: 1rem; }
.form-group label { font-size: 0.85rem; color: var(--muted); }
input[type=text], input[type=email], input[type=datetime-local], textarea, select {
    background: var(--surface2); border: 1px solid var(--border); color: var(--text);
    padding: 0.5rem 0.75rem; border-radius: 6px; font-size: 0.9rem; outline: none; width: 100%;
}
input:focus, textarea:focus, select:focus { border-color: var(--accent); }
textarea { resize: vertical; min-height: 80px; }

.btn { padding: 0.45rem 1rem; border-radius: 6px; font-size: 0.88rem; font-weight: 600; cursor: pointer; border: none; text-decoration: none; display: inline-block; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.1); }
.btn-secondary { background: var(--surface2); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--accent); }
.btn-danger { background: #6e1c1c; color: #fca5a5; border: 1px solid #7f1d1d; }
.btn-danger:hover { background: #7f1d1d; }
.btn-sm { padding: 0.3rem 0.65rem; font-size: 0.8rem; }

/* ── Slot row builder ── */
.slot-list { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 0.75rem; }
.slot-row { display: flex; gap: 0.5rem; align-items: center; }
.slot-row input { flex: 1; }
.btn-remove-slot { background: none; border: 1px solid var(--border); color: var(--muted); border-radius: 6px; padding: 0.3rem 0.6rem; cursor: pointer; font-size: 0.9rem; }
.btn-remove-slot:hover { border-color: var(--no-text); color: var(--no-text); }

/* ── Availability grid ── */
.avail-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; overflow-x: auto; display: block; }
.avail-table th { background: var(--surface2); padding: 0.5rem 0.6rem; text-align: center; color: var(--muted); white-space: nowrap; font-weight: 600; border: 1px solid var(--border); }
.avail-table th.slot-header { min-width: 100px; }
.avail-table th.name-col { text-align: left; min-width: 120px; }
.avail-table td { padding: 0.4rem 0.6rem; border: 1px solid var(--border); text-align: center; vertical-align: middle; }
.avail-table td.name-col { text-align: left; color: var(--text); }
.avail-table tr.totals td { background: var(--surface2); font-weight: 700; }

.avail-yes    { background: #1a6c3833; color: var(--yes-text); }
.avail-maybe  { background: #7a5c0033; color: var(--maybe-text); }
.avail-no     { background: #6e1c1c33; color: var(--no-text); }
.avail-none   { color: var(--muted); }

/* ── Vote form radio grid ── */
.vote-grid { display: grid; gap: 0.75rem; }
.vote-slot { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 0.9rem 1rem; }
.vote-slot-date { font-weight: 600; margin-bottom: 0.5rem; }
.vote-slot-date span { font-size: 0.8rem; color: var(--muted); font-weight: 400; margin-left: 0.4rem; }
.avail-radios { display: flex; gap: 0.6rem; }
.avail-radios label { display: flex; align-items: center; gap: 0.35rem; font-size: 0.88rem; cursor: pointer;
    padding: 0.35rem 0.75rem; border-radius: 6px; border: 1px solid var(--border); }
.avail-radios input[type=radio] { width: auto; accent-color: var(--accent); }
.avail-radios label.yes  { border-color: var(--yes);   color: var(--yes-text); }
.avail-radios label.maybe{ border-color: var(--maybe); color: var(--maybe-text); }
.avail-radios label.no   { border-color: var(--no);    color: var(--no-text); }
.avail-radios input[type=radio]:checked + span { font-weight: 700; }

/* ── Badges / status ── */
.badge { display: inline-block; padding: 0.15rem 0.55rem; border-radius: 20px; font-size: 0.75rem; font-weight: 600; }
.badge-open     { background: #1a6c3822; color: var(--yes-text); border: 1px solid var(--yes); }
.badge-closed   { background: var(--surface2); color: var(--muted); border: 1px solid var(--border); }

/* ── Share box ── */
.share-box { background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; margin: 0.75rem 0; }
.share-box label { font-size: 0.8rem; color: var(--muted); display: block; margin-bottom: 0.35rem; }
.share-url { display: flex; gap: 0.5rem; }
.share-url input { flex: 1; font-family: monospace; font-size: 0.85rem; }
.share-url button { white-space: nowrap; }

/* ── Alert / notice ── */
.notice { padding: 0.75rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; font-size: 0.9rem; }
.notice-info    { background: #161e2e; border: 1px solid var(--accent); color: var(--text); }
.notice-success { background: #1a6c3822; border: 1px solid var(--yes); color: var(--yes-text); }
.notice-warn    { background: #7a5c0022; border: 1px solid var(--maybe); color: var(--maybe-text); }

/* ── Empty state ── */
.empty-state { color: var(--muted); padding: 3rem 0; text-align: center; }

/* ── Login ── */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-box { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 2.5rem; width: 100%; max-width: 360px; display: flex; flex-direction: column; gap: 1.25rem; }
.login-box h1 { text-align: center; font-size: 1.4rem; }
.login-icon { text-align: center; font-size: 2.5rem; }
.error { color: #e84040; font-size: 0.88rem; text-align: center; }

/* ── Footer ── */
.site-footer { text-align: center; padding: 1.5rem; color: var(--muted); font-size: 0.82rem;
    border-top: 1px solid var(--border); margin-top: 3rem; }

@media (max-width: 600px) {
    .avail-radios { flex-wrap: wrap; }
    .card-actions { flex-direction: column; }
}