:root {
    --green: #1d7a3f;
    --green-dark: #145a2e;
    --green-light: #e6f4ea;
    --ink: #1d2b23;
    --muted: #6b7a70;
    --border: #d9e3dc;
    --bg: #f4f7f5;
    --card: #ffffff;
    --danger: #b3362b;
    --yellow: #f5d67b;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.5;
}

.topbar { background: var(--green-dark); color: #fff; }
.topbar-inner {
    max-width: 1100px; margin: 0 auto; padding: 0.6rem 1rem;
    display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
}
.brand { color: #fff; text-decoration: none; font-weight: 700; font-size: 1.15rem; }
.brand span { font-weight: 400; opacity: 0.85; }
.topbar nav { display: flex; align-items: center; gap: 0.9rem; flex-wrap: wrap; }
.topbar nav a { color: #fff; text-decoration: none; }
.topbar nav a:hover { text-decoration: underline; }
.user-chip { background: rgba(255,255,255,0.15); padding: 0.15rem 0.6rem; border-radius: 999px; font-size: 0.9rem; }

.container { max-width: 1100px; margin: 1.2rem auto 3rem; padding: 0 1rem; }
.footer { text-align: center; color: var(--muted); font-size: 0.85rem; padding: 1rem; }

h1 { font-size: 1.6rem; margin: 0.3rem 0; }
h2 { font-size: 1.2rem; margin: 1.4rem 0 0.5rem; }
h3 { font-size: 1.05rem; margin: 0 0 0.5rem; }
.muted { color: var(--muted); }

.page-head { display: flex; align-items: center; gap: 0.8rem; flex-wrap: wrap; }

.card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: 10px; padding: 1rem 1.2rem; margin-bottom: 1rem;
}
.card.narrow { max-width: 520px; margin-left: auto; margin-right: auto; }
.action-bar { display: flex; align-items: center; gap: 0.8rem; flex-wrap: wrap; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; align-items: start; }
.group-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1rem; }
@media (max-width: 860px) { .two-col { grid-template-columns: 1fr; } }

.table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.table th, .table td { padding: 0.4rem 0.5rem; text-align: left; border-bottom: 1px solid var(--border); }
.table th { color: var(--muted); font-weight: 600; font-size: 0.83rem; text-transform: uppercase; letter-spacing: 0.03em; }
.table tr:last-child td { border-bottom: none; }
.row-dim { opacity: 0.45; }
.row-saved { animation: savedFlash 1.2s ease; }
@keyframes savedFlash { 0% { background: var(--green-light); } 100% { background: transparent; } }
.save-error input { border-color: var(--danger); }
.winner { font-weight: 700; }
.col-score { white-space: nowrap; }
.col-board { color: var(--muted); font-size: 0.85rem; white-space: nowrap; }
.actions { white-space: nowrap; }

.badge {
    display: inline-block; padding: 0.1rem 0.55rem; border-radius: 999px;
    font-size: 0.78rem; background: #e3e8e5; color: var(--ink); vertical-align: middle;
}
.badge-green { background: var(--green-light); color: var(--green-dark); }
.badge-yellow { background: var(--yellow); }

.btn {
    display: inline-block; padding: 0.45rem 0.9rem; border-radius: 8px;
    border: 1px solid var(--border); background: #fff; color: var(--ink);
    cursor: pointer; text-decoration: none; font-size: 0.92rem; font-family: inherit;
}
.btn:hover { border-color: var(--green); color: var(--green-dark); }
.btn-primary { background: var(--green); border-color: var(--green); color: #fff; }
.btn-primary:hover { background: var(--green-dark); color: #fff; }
.btn-danger { border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-small { padding: 0.2rem 0.6rem; font-size: 0.85rem; }
.btn-ghost { background: transparent; border-color: transparent; color: inherit; }
.topbar .btn-ghost { color: #fff; }

form label { display: block; margin-bottom: 0.8rem; font-weight: 600; font-size: 0.92rem; }
form label .muted { font-weight: 400; }
form input[type="text"], form input[type="password"], form input[type="number"],
form input[type="email"], form input[type="date"], form input[type="datetime-local"], form select {
    display: block; width: 100%; margin-top: 0.25rem; padding: 0.45rem 0.6rem;
    border: 1px solid var(--border); border-radius: 8px; font-size: 1rem; font-family: inherit;
}
form label.check { font-weight: 400; }
form label.check input { width: auto; display: inline; margin-right: 0.4rem; }
.inline-form { display: inline-flex; gap: 0.4rem; align-items: center; margin: 0; }
.inline-form input[type="text"] { width: auto; margin: 0; }
.inline-form label { margin: 0; }
.inline-form select { width: auto; margin: 0.25rem 0 0; }

.filter-bar { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }
.filter-bar input[type="text"], .filter-bar select { width: auto; margin: 0; display: inline-block; }
.field-row { display: flex; gap: 0.8rem; }
.field-row label { flex: 1; }
@media (max-width: 640px) { .field-row { flex-direction: column; gap: 0; } }

.score-form { display: inline-flex; gap: 0.3rem; align-items: center; margin: 0; }
.score-form input[type="number"] { width: 3.6rem; margin: 0; text-align: center; }
.seed-input { width: 4rem !important; }

.link-button {
    background: none; border: none; padding: 0; margin-top: 0.3rem;
    color: var(--green-dark); text-decoration: underline; cursor: pointer;
    font-size: 0.85rem; font-weight: 400; font-family: inherit; display: inline-block;
}
.link-button:hover { color: var(--green); }

.flash { padding: 0.6rem 1rem; border-radius: 8px; margin-bottom: 0.8rem; }
.flash-success { background: var(--green-light); color: var(--green-dark); border: 1px solid #bcdcc7; }
.flash-error { background: #fdeceb; color: var(--danger); border: 1px solid #f2c4bf; }
.flash-warning { background: #fdf6e3; color: #7a5d00; border: 1px solid #eadfae; }

/* Knockout bracket */
.bracket { display: flex; gap: 1.2rem; overflow-x: auto; padding-bottom: 0.8rem; }
.bracket-round { display: flex; flex-direction: column; justify-content: space-around; gap: 0.8rem; min-width: 230px; }
.bracket-round-title { text-align: center; font-weight: 700; color: var(--muted); font-size: 0.85rem; text-transform: uppercase; }
.bracket-match { background: var(--card); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.bracket-match.third-place { border-style: dashed; }
.bracket-tag { font-size: 0.72rem; color: var(--muted); padding: 0.15rem 0.6rem; border-bottom: 1px solid var(--border); }
.bracket-player { display: flex; justify-content: space-between; padding: 0.35rem 0.6rem; }
.bracket-player + .bracket-player { border-top: 1px solid var(--border); }
.bracket-player.winner { background: var(--green-light); font-weight: 700; }
.bracket-score { font-variant-numeric: tabular-nums; }

@media print {
    .topbar, .footer, .btn, .action-bar, form { display: none !important; }
    .card { border: none; padding: 0; }
    body { background: #fff; }
}