/* ─────────────────────────────────────────────────────────
   Wordle Tracker — design system
   Self-contained: no CDN dependencies. Light + dark themes.
   ───────────────────────────────────────────────────────── */

:root {
    --bg: #f4f6f2;
    --surface: #ffffff;
    --surface-2: #f5f7f4;
    --ink: #1c2420;
    --ink-soft: #5b6660;
    --faint: #8b968f;
    --line: #e2e8e1;
    --line-strong: #ccd5cd;

    --accent: #3f8a44;
    --accent-ink: #ffffff;
    --green: #3f8a44;
    --green-soft: #e4f1e5;
    --amber: #a1790a;
    --amber-soft: #f6ecd3;
    --red: #bf4a3f;
    --red-soft: #f8e6e3;

    --sq-green: #55a05a;
    --sq-amber: #d9a52b;
    --sq-red: #cf5b52;
    --sq-empty: #e7ece6;

    --shadow: 0 1px 2px rgba(20, 32, 24, 0.05), 0 8px 24px rgba(20, 32, 24, 0.06);
    --topbar-bg: rgba(244, 246, 242, 0.85);
}

[data-theme="dark"] {
    --bg: #0e1214;
    --surface: #161b1f;
    --surface-2: #1d2429;
    --ink: #e7ebe8;
    --ink-soft: #9aa8a0;
    --faint: #62716b;
    --line: #232b2f;
    --line-strong: #37424a;

    --accent: #4f9a53;
    --accent-ink: #ffffff;
    --green: #6cbf71;
    --green-soft: #16241a;
    --amber: #d9a52b;
    --amber-soft: #262214;
    --red: #e07a6d;
    --red-soft: #2b1714;

    --sq-green: #4f9a53;
    --sq-amber: #c9a031;
    --sq-red: #c4584c;
    --sq-empty: #222b30;

    --shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 10px 28px rgba(0, 0, 0, 0.35);
    --topbar-bg: rgba(14, 18, 20, 0.82);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.5;
    color: var(--ink);
    background: var(--bg);
    transition: background-color 0.2s, color 0.2s;
}

.mono {
    font-family: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    font-variant-numeric: tabular-nums;
}

.dim { color: var(--ink-soft); }

h1, h2, h3 { margin: 0; letter-spacing: -0.2px; }
button { font: inherit; }

::selection { background: var(--green-soft); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ── Top bar ─────────────────────────────────────────── */

.topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--topbar-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
}

.topbar-inner {
    max-width: 1080px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-weight: 800;
    font-size: 16.5px;
    color: var(--ink);
    text-decoration: none;
    letter-spacing: -0.2px;
}

.brand-mark { width: 22px; height: 22px; flex-shrink: 0; }
.bm-g { fill: var(--sq-green); }
.bm-a { fill: var(--sq-amber); }

.tabs { display: flex; gap: 4px; }

.tabs a {
    padding: 7px 13px;
    border-radius: 9px;
    font-size: 14px;
    font-weight: 600;
    color: var(--ink-soft);
    text-decoration: none;
    transition: color 0.15s, background 0.15s;
}

.tabs a:hover { color: var(--ink); background: var(--surface); }

.tabs a.active {
    color: var(--ink);
    background: var(--surface);
    box-shadow: inset 0 0 0 1px var(--line);
}

.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }

.clock { font-size: 13px; color: var(--ink-soft); min-width: 108px; text-align: right; }

.icon-btn {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: var(--surface);
    cursor: pointer;
    font-size: 15px;
    line-height: 1;
    transition: border-color 0.15s, transform 0.15s;
}

.icon-btn:hover { border-color: var(--line-strong); transform: translateY(-1px); }

/* ── Page frame ─────────────────────────────────────── */

.page { max-width: 1080px; margin: 0 auto; padding: 30px 20px 90px; }
.page > * + * { margin-top: 16px; }

.page-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 14px;
    flex-wrap: wrap;
}

.page-head h1 { font-size: 27px; font-weight: 800; }

.page-sub { margin: 6px 0 0; color: var(--ink-soft); font-size: 13.5px; }

.page-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

/* ── Cards ──────────────────────────────────────────── */

.card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.section-card { padding: 20px 22px; }

.section-head {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.section-head h2 { font-size: 15px; font-weight: 700; }
.section-head .dim { font-size: 12.5px; }
.section-head .btn, .section-head .celebrate-inline { margin-left: auto; }

/* ── Progress card ──────────────────────────────────── */

.progress-card { padding: 18px 20px; }

.progress-top {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 10px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.progress-title { font-weight: 700; font-size: 14px; }
.progress-pct { font-size: 13px; color: var(--ink-soft); }

.progress-track {
    height: 12px;
    border-radius: 999px;
    background: var(--sq-empty);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--sq-green), var(--sq-amber));
    transition: width 0.7s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* ── Stat tiles ─────────────────────────────────────── */

.tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }

.tile {
    padding: 16px 18px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.t-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    color: var(--faint);
}

.t-value { font-size: 27px; font-weight: 700; line-height: 1.15; }
.t-sub { font-size: 12px; font-weight: 500; color: var(--faint); }

.v-green { color: var(--green); }
.v-amber { color: var(--amber); }

@media (max-width: 700px) {
    .tiles { grid-template-columns: 1fr 1fr; }
}

/* ── Player cards ───────────────────────────────────── */

.player-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(252px, 1fr));
    gap: 14px;
}

.player-card {
    background: var(--surface-2);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: border-color 0.15s, transform 0.15s;
}

.player-card:hover { border-color: var(--line-strong); transform: translateY(-2px); }

.player-card.pending { border-style: dashed; }

.player-head { display: flex; align-items: center; gap: 11px; }

.avatar {
    width: 42px;
    min-width: 42px;
    height: 42px;
    border-radius: 12px;
    display: grid;
    place-items: center;
    font-weight: 800;
    font-size: 17px;
}

.avatar-green { background: var(--green-soft); color: var(--green); }
.avatar-amber { background: var(--amber-soft); color: var(--amber); }

.player-ident { min-width: 0; }

.player-ident strong {
    display: block;
    font-size: 14.5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.player-ident .dim { font-size: 12px; }

.pill {
    margin-left: auto;
    font-size: 11px;
    font-weight: 700;
    padding: 3.5px 10px;
    border-radius: 999px;
    letter-spacing: 0.2px;
    white-space: nowrap;
}

.pill-green { background: var(--green-soft); color: var(--green); }
.pill-amber { background: var(--amber-soft); color: var(--amber); }
.pill-plain {
    background: var(--surface);
    border: 1px solid var(--line);
    color: var(--ink-soft);
    margin-left: 0;
}

.player-stats { display: flex; flex-wrap: wrap; gap: 6px; }

.chip {
    font-size: 11.5px;
    font-weight: 600;
    padding: 3.5px 9px;
    border-radius: 999px;
    background: var(--surface);
    border: 1px solid var(--line);
    color: var(--ink-soft);
}

.player-foot { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.celebrate-inline {
    font-weight: 700;
    font-size: 13px;
    color: var(--green);
    background: var(--green-soft);
    padding: 5px 12px;
    border-radius: 999px;
}

/* ── Wordle squares ─────────────────────────────────── */

.sq-row { display: inline-flex; gap: 4px; }
.sq { width: 15px; height: 15px; border-radius: 3.5px; background: var(--sq-empty); }

.sq-row.big .sq { width: 22px; height: 22px; border-radius: 4.5px; }

.sq-green { background: var(--sq-green); }
.sq-amber { background: var(--sq-amber); }
.sq-red { background: var(--sq-red); }

.score-line { font-size: 13px; color: var(--ink-soft); }
.score-line strong { color: var(--ink); font-size: 15px; }

.moves-cell { display: flex; align-items: center; gap: 10px; }
.moves-cell .mono { font-size: 12.5px; min-width: 30px; }

/* ── Buttons ────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 9px 16px;
    border-radius: 11px;
    border: 1px solid var(--line-strong);
    background: var(--surface);
    color: var(--ink);
    font-size: 13.5px;
    font-weight: 700;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s, transform 0.15s, opacity 0.15s;
}

.btn:hover { border-color: var(--ink-soft); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.55; cursor: default; transform: none; }

.btn-sm { padding: 6px 12px; font-size: 12.5px; border-radius: 9px; }

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--accent-ink);
}

.btn-primary:hover { border-color: var(--accent); filter: brightness(1.06); }

.btn-ghost { background: transparent; }

.btn.loading::before {
    content: "";
    width: 11px;
    height: 11px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

.btn.sent {
    color: var(--green);
    border-color: var(--green);
    background: var(--green-soft);
    opacity: 1;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Auto-refresh toggle ────────────────────────────── */

.toggle {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--ink-soft);
    cursor: pointer;
    user-select: none;
}

.toggle input { position: absolute; opacity: 0; width: 0; height: 0; }

.toggle-track {
    width: 36px;
    height: 21px;
    border-radius: 999px;
    background: var(--line-strong);
    position: relative;
    transition: background 0.18s;
    flex-shrink: 0;
}

.toggle-track::after {
    content: "";
    position: absolute;
    top: 2.5px;
    left: 2.5px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
    transition: left 0.18s;
}

.toggle input:checked + .toggle-track { background: var(--accent); }
.toggle input:checked + .toggle-track::after { left: 17.5px; }
.toggle input:focus-visible + .toggle-track { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ── Tables ─────────────────────────────────────────── */

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

.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }

.tbl th {
    text-align: left;
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: 0.7px;
    text-transform: uppercase;
    color: var(--faint);
    padding: 8px 12px;
}

.tbl td { padding: 10px 12px; border-top: 1px solid var(--line); }
.t-right { text-align: right; }

/* ── History: day cards ─────────────────────────────── */

.days { display: flex; flex-direction: column; gap: 14px; }

.day-card { overflow: hidden; }

.day-card summary {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 20px;
    cursor: pointer;
    list-style: none;
    user-select: none;
}

.day-card summary::-webkit-details-marker { display: none; }

.day-card summary:hover { background: var(--surface-2); }

.day-date { font-weight: 700; font-size: 14.5px; }

.day-card .chev {
    margin-left: auto;
    color: var(--faint);
    font-size: 12px;
    transition: transform 0.2s;
}

.day-card[open] .chev { transform: rotate(90deg); }

.day-body { padding: 14px 20px 18px; border-top: 1px solid var(--line); }

.day-summary { font-size: 13px; margin: 12px 0 0; }

/* ── Trend chart (SVG, drawn by app.js) ─────────────── */

.chart { padding: 8px 4px 0; }

.trend-svg { width: 100%; height: auto; display: block; }

.trend-svg .grid { stroke: var(--line); stroke-width: 1; }
.trend-svg .grid-label, .trend-svg .x-label {
    fill: var(--faint);
    font-size: 10px;
    font-family: ui-monospace, Menlo, Consolas, monospace;
}

.trend-svg .bar { opacity: 0.92; }
.trend-svg .bar:hover { opacity: 1; }
.trend-svg rect.sq-green { fill: var(--sq-green); }
.trend-svg rect.sq-amber { fill: var(--sq-amber); }
.trend-svg rect.sq-red { fill: var(--sq-red); }
.trend-svg rect.bar-none { fill: var(--line-strong); }

/* ── Footer, empty states, toasts ───────────────────── */

.foot {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 12.5px;
    color: var(--ink-soft);
}

.foot strong { color: var(--ink); }

.empty { color: var(--ink-soft); font-size: 14px; margin: 0; }

.empty code {
    background: var(--surface-2);
    border: 1px solid var(--line);
    padding: 1px 6px;
    border-radius: 6px;
    font-size: 12.5px;
}

#toasts {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 200;
}

.toast {
    background: var(--surface);
    color: var(--ink);
    border: 1px solid var(--line);
    border-left: 4px solid var(--green);
    border-radius: 12px;
    padding: 12px 16px;
    font-size: 13.5px;
    font-weight: 600;
    box-shadow: var(--shadow);
    max-width: 340px;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.25s, transform 0.25s;
}

.toast.show { opacity: 1; transform: translateY(0); }
.toast-error { border-left-color: var(--red); }

/* ── Responsive & motion ────────────────────────────── */

@media (max-width: 640px) {
    .page { padding: 22px 14px 70px; }
    .clock { min-width: 0; }
    .topbar-inner { gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}