:root {
    --bg: #0c0f14;
    --panel: #161b24;
    --panel-2: #1d2430;
    --line: #2a3340;
    --text: #e7ecf2;
    --muted: #9aa6b5;
    --accent: #4ea1ff;
    --done: #2ecc71;
    --live: #ffb020;
    --pending: #7a8696;
    --gold: #ffd24a;
    --silver: #cfd8e3;
    --bronze: #d8924a;
    font-size: 16px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN",
        "Yu Gothic", Meiryo, Roboto, sans-serif;
    line-height: 1.45;
    -webkit-text-size-adjust: 100%;
}

/* ---- App bar ---------------------------------------------------------- */
.appbar {
    position: sticky;
    top: 0;
    z-index: 20;
    background: linear-gradient(180deg, #11151c, #0c0f14);
    border-bottom: 1px solid var(--line);
    padding: env(safe-area-inset-top) 0 0;
}
.appbar-inner {
    max-width: 760px;
    margin: 0 auto;
    padding: 12px 16px;
    display: flex;
    align-items: baseline;
    gap: 10px;
}
.titles { display: flex; flex-direction: column; min-width: 0; }
.event-name {
    font-size: 1.15rem;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.event-meta { font-size: 0.78rem; color: var(--muted); }
.home-link {
    color: var(--text);
    text-decoration: none;
    font-size: 1.25rem;
    line-height: 1;
    padding: 2px 8px;
    margin-right: 2px;
    border: 1px solid var(--line);
    border-radius: 8px;
}
.home-link:active { background: var(--panel); }

/* イベント一覧(ランディング) */
.event-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 14px 16px;
    margin: 10px 0;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    color: var(--text);
    text-decoration: none;
}
.event-row:active { background: var(--panel-2); }
.event-row-name { font-weight: 700; }
.event-row-meta { font-size: 0.78rem; color: var(--muted); }

/* ---- Toolbar ---------------------------------------------------------- */
.toolbar {
    max-width: 760px;
    margin: 0 auto;
    padding: 8px 16px;
    display: flex;
    gap: 8px;
}
.tool-btn {
    flex: 1;
    min-height: 40px;
    border: 1px solid var(--line);
    background: var(--panel-2);
    color: var(--text);
    border-radius: 10px;
    font-size: 0.9rem;
    cursor: pointer;
}
.tool-btn:active { background: var(--panel); }

/* ---- Layout ----------------------------------------------------------- */
.app {
    max-width: 760px;
    margin: 0 auto;
    padding: 4px 12px 40px;
}
.loading { padding: 40px 12px; text-align: center; color: var(--muted); }

/* ---- Stage ------------------------------------------------------------ */
.stage { margin: 18px 0 10px; }
.stage-head {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 4px 8px;
}
.stage-title { font-size: 1.05rem; font-weight: 700; }
.stage-kind {
    font-size: 0.7rem;
    color: var(--muted);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 1px 8px;
}

/* Stage standings */
.standings {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
}
.standings > summary {
    list-style: none;
    cursor: pointer;
    padding: 12px 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}
.standings > summary::-webkit-details-marker { display: none; }
.standings > summary::before {
    content: "▸";
    color: var(--muted);
    transition: transform .15s ease;
}
.standings[open] > summary::before { transform: rotate(90deg); }

/* ---- Round (collapsible) --------------------------------------------- */
.round {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    margin: 10px 0;
    overflow: hidden;
}
.round > summary {
    list-style: none;
    cursor: pointer;
    padding: 13px 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    -webkit-tap-highlight-color: transparent;
}
.round > summary::-webkit-details-marker { display: none; }
.round > summary::before {
    content: "▸";
    color: var(--muted);
    transition: transform .15s ease;
    flex: 0 0 auto;
}
.round[open] > summary::before { transform: rotate(90deg); }
.round-title { font-weight: 700; flex: 1 1 auto; min-width: 0; }
.round-sub { font-size: 0.75rem; color: var(--muted); }

.round-body { padding: 4px 10px 12px; }

/* ---- Race card -------------------------------------------------------- */
.race {
    border: 1px solid var(--line);
    border-radius: 10px;
    margin: 8px 0;
    background: var(--panel-2);
    overflow: hidden;
}
.race-head {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 12px;
    border-bottom: 1px solid var(--line);
}
.race-name { font-weight: 600; font-size: 0.92rem; }
.badge {
    margin-left: auto;
    font-size: 0.68rem;
    font-weight: 700;
    padding: 2px 9px;
    border-radius: 999px;
    color: #0c0f14;
}
.badge.done { background: var(--done); }
.badge.live { background: var(--live); }
.badge.pending { background: var(--pending); color: #fff; }

/* result table */
table.grid { width: 100%; border-collapse: collapse; font-size: 0.86rem; }
table.grid th, table.grid td {
    padding: 7px 8px;
    text-align: left;
    border-bottom: 1px solid var(--line);
    white-space: nowrap;
}
table.grid th {
    font-size: 0.7rem;
    color: var(--muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .03em;
}
table.grid tr:last-child td { border-bottom: none; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
/* バンド(チャンネル)列を右詰めに。Δ の有無で band がずれないよう flex で中央揃え＋固定幅 */
td.chcol, th.chcol { text-align: right; white-space: nowrap; }
td.chcol .chwrap { display: flex; justify-content: flex-end; align-items: center; gap: 5px; }
td.chcol .chg-slot { flex: 0 0 1.3em; display: inline-flex; align-items: center; justify-content: center; }
td.chcol .ch-label { min-width: 2.1em; text-align: right; }
td.pos { width: 2.2em; font-weight: 700; text-align: center; }
.pilot { width: 99%; white-space: normal; }

.pos-1 { color: var(--gold); }
.pos-2 { color: var(--silver); }
.pos-3 { color: var(--bronze); }
.dnf { color: var(--live); font-weight: 700; }

/* channel chip */
.chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.dot {
    width: 11px; height: 11px;
    border-radius: 50%;
    display: inline-block;
    border: 1px solid rgba(255,255,255,.25);
    flex: 0 0 auto;
}
.ch-label { font-variant-numeric: tabular-nums; }

.empty { padding: 12px; color: var(--muted); font-size: 0.85rem; }

/* 空きチャンネル枠（パイロット未割当）の行 */
tr.slot-empty { opacity: 0.45; }

/* チャンネル変更マーク (本体FPVTrackside の Δ 相当) */
.chg {
    display: inline-block;
    font-weight: 700;
    color: #0c0f14;
    background: var(--live);
    border-radius: 5px;
    padding: 0 5px;
    font-size: 0.72rem;
    line-height: 1.5;
    vertical-align: middle;
}

/* ---- Pilot link ------------------------------------------------------- */
.pilot-link {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px dotted rgba(78,161,255,.5);
}
.pilot-link:active { opacity: .6; }

/* 確定レース名のリンク */
.race-link {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px dotted rgba(78,161,255,.5);
}
.race-link:active { opacity: .6; }

/* レース詳細のメタ情報 */
.rd-head { margin: 2px 0 6px; }
.rd-meta { color: var(--muted); font-size: 0.8rem; margin-top: 6px; }

/* ---- Pilot detail overlay -------------------------------------------- */
body.no-scroll { overflow: hidden; }
.overlay {
    position: fixed;
    inset: 0;
    z-index: 50;
    background: var(--bg);
    display: none;
    flex-direction: column;
}
.overlay.open { display: flex; }
.overlay-bar {
    position: sticky;
    top: 0;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: calc(env(safe-area-inset-top) + 8px) 12px 8px;
    background: linear-gradient(180deg, #11151c, #0c0f14);
    border-bottom: 1px solid var(--line);
}
.back-btn {
    background: var(--panel-2);
    color: var(--text);
    border: 1px solid var(--line);
    border-radius: 9px;
    min-height: 38px;
    padding: 0 14px;
    font-size: 0.92rem;
    cursor: pointer;
}
.back-btn:active { background: var(--panel); }
.overlay-title {
    font-weight: 700;
    font-size: 1.05rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.overlay-body {
    flex: 1 1 auto;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 8px 12px calc(env(safe-area-inset-bottom) + 28px);
}
.pilot-detail { max-width: 760px; margin: 0 auto; }
.pd-h { font-size: 0.95rem; margin: 16px 4px 6px; }
.pd-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
}
.pd-races { display: flex; flex-direction: column; gap: 10px; }
.pd-race {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
}
.pd-race-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 9px 12px;
    border-bottom: 1px solid var(--line);
    font-weight: 600;
    font-size: 0.9rem;
}
.pd-res { font-weight: 600; font-size: 0.82rem; color: var(--muted); }

.appfoot {
    max-width: 760px;
    margin: 0 auto;
    padding: 16px;
    color: var(--muted);
    font-size: 0.72rem;
    text-align: center;
}

@media (min-width: 760px) {
    :root { font-size: 17px; }
}