/* fastPlay — mobile-first dominoes client, styled after the Sixachips
   brand book (libro_marca.html): "Canopy" light palette, Literata headlines,
   Nunito Sans body, Geist Mono labels. */

:root {
    /* Page & surfaces */
    --background: #faf6ef;            /* topsoil cream */
    --surface-low: #f1ebd9;           /* warm loam cards */
    --surface: #e6dfcd;               /* structured panels, secondary buttons */
    --surface-high: #ded5c0;          /* inactive chips, input wells */
    --surface-white: #ffffff;

    /* Ink */
    --on-surface: #202621;
    --on-surface-variant: #4a544b;
    --outline: #778175;
    --outline-variant: #cbcfc5;

    /* Brand accents (Pantone 355 C, 382 C, 1585 C) */
    --primary: #009639;
    --on-primary: #ffffff;
    --primary-container: #d9f3e1;
    --on-primary-container: #004519;
    --accent-yellow: #bad405;
    --tertiary: #ff6a13;
    --tertiary-container: #ffe7db;
    --on-tertiary-container: #5c1e00;
    --error: #b83230;

    /* Tiles */
    --tile: #ffffff;
    --pip: #202621;

    /* Type */
    --font-headline: 'Literata', Georgia, serif;
    --font-body: 'Nunito Sans', system-ui, -apple-system, sans-serif;
    --font-label: 'Geist Mono', ui-monospace, monospace;

    /* Shape, depth, motion */
    --rounded: 8px;
    --rounded-lg: 16px;
    --rounded-full: 9999px;
    --shadow-soft: 0 4px 20px rgba(32, 38, 33, 0.05);
    --shadow-lift: 0 10px 28px rgba(32, 38, 33, 0.09);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --dur-short: 220ms;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    background: var(--background);
    color: var(--on-surface);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

#main { min-height: 100dvh; }

.app { min-height: 100dvh; display: flex; flex-direction: column; }

.page {
    flex: 1;
    width: min(560px, 100%);
    margin: 0 auto;
    padding: 12px 14px calc(18px + env(safe-area-inset-bottom));
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* The game table gets a roomier column than the other screens. */
.page.game {
    width: min(680px, 100%);
}

.center { align-items: center; justify-content: center; text-align: center; }

/* ---------- top bar: thin masthead rule, Literata wordmark ---------- */
.topbar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    padding-top: max(10px, env(safe-area-inset-top));
    background: var(--background);
    border-bottom: 1px solid var(--outline-variant);
}
.topbar .brand {
    font-family: var(--font-headline);
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--primary);
    font-style: italic;
}
.roomchip {
    background: var(--surface);
    border-radius: var(--rounded-full);
    padding: 2px 10px;
    font-family: var(--font-label);
    font-size: 12px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--on-surface-variant);
}
.dot { width: 10px; height: 10px; border-radius: 50%; margin-left: auto; }
.dot-on { background: var(--primary); box-shadow: 0 0 0 3px var(--primary-container); }
.dot-warn { background: var(--tertiary); animation: pulse 1.2s infinite; }
.dot-off { background: var(--outline); }
@keyframes pulse { 50% { opacity: 0.3; } }

/* ---------- generic ---------- */
.card {
    background: var(--surface-low);
    border: 0;
    border-radius: var(--rounded-lg);
    padding: 16px;
    box-shadow: var(--shadow-soft);
}
.hint {
    font-family: var(--font-label);
    font-size: 12px;
    letter-spacing: 0.02em;
    color: var(--on-surface-variant);
    margin: 8px 0 0;
}

.btn {
    appearance: none;
    border: 1px solid var(--outline-variant);
    background: var(--surface);
    color: var(--on-surface);
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 700;
    padding: 12px 18px;
    border-radius: var(--rounded);
    cursor: pointer;
    min-height: 46px;
    transition: transform var(--dur-short) var(--ease-out), background var(--dur-short) var(--ease-out);
}
.btn:hover { background: var(--surface-high); }
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: default; }
.btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn-primary { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }
.btn-primary:hover { background: var(--on-primary-container); border-color: var(--on-primary-container); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--on-surface-variant); }
.btn-ghost:hover { background: var(--surface); }
.btn-danger { background: var(--error); border-color: var(--error); color: var(--on-primary); }

input[type="text"] {
    width: 100%;
    padding: 12px;
    font-family: var(--font-body);
    font-size: 16px;
    border-radius: var(--rounded);
    border: 1px solid var(--outline-variant);
    background: var(--surface-white);
    color: var(--on-surface);
}
input[type="text"]:focus { outline: 2px solid var(--primary); outline-offset: 1px; border-color: var(--primary); }

.spinner {
    width: 42px; height: 42px;
    border: 4px solid var(--surface-high);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- home ---------- */
.hero { text-align: center; margin-top: 18px; }
.hero h1 {
    font-family: var(--font-headline);
    font-size: clamp(2.25rem, 1.4rem + 3.2vw, 3.25rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.015em;
    margin: 0;
    color: var(--on-surface);
}
.tagline {
    font-family: var(--font-label);
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--on-surface-variant);
    margin-top: 8px;
}
.invite {
    border: 1px solid var(--primary);
    background: var(--primary-container);
    color: var(--on-primary-container);
    text-align: center;
    font-weight: 700;
}

.form { display: flex; flex-direction: column; gap: 12px; }
.field { display: flex; flex-direction: column; gap: 6px; font-family: var(--font-label); font-size: 12px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--on-surface-variant); }
.field .hint { margin: 0; text-transform: none; }
.form-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

/* Partnership picker: one tap row, the chosen side lit up. */
.team-picker { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
.team-picker .btn { padding: 10px 4px; font-size: 14px; }
.team-picker .btn.picked { border-color: var(--primary); background: var(--primary-container); color: var(--on-primary-container); }

.advanced { margin: 0 6px; }
.advanced summary { cursor: pointer; color: var(--on-surface-variant); font-size: 14px; padding: 6px; }
.advanced input { margin-top: 8px; }

.rules h3 { margin: 0 0 8px; font-family: var(--font-headline); font-weight: 600; }
.rules ul { margin: 0; padding-left: 20px; color: var(--on-surface-variant); font-size: 14px; line-height: 1.6; }

/* ---------- waiting room ---------- */
.room-title { text-align: center; margin: 4px 0; font-family: var(--font-headline); font-weight: 600; }
/* Square table: seats sit on its edges */
.seats {
    position: relative;
    width: min(300px, 80vw);
    aspect-ratio: 1;
    margin: 0 auto;
}
.seat {
    display: flex; align-items: center; gap: 12px;
    position: absolute;
    background: var(--surface-white);
    border: 1px dashed var(--outline-variant);
    border-radius: var(--rounded);
    padding: 10px 12px;
    min-width: 128px;
    min-height: 52px;
    box-shadow: var(--shadow-soft);
    transition: border-color var(--dur-short);
}
.seat.taken { border-style: solid; }
.seat.north { top: 0; left: 50%; transform: translate(-50%, 0); }
.seat.south { bottom: 0; left: 50%; transform: translate(-50%, 0); }
.seat.east { right: 0; top: 50%; transform: translate(0, -50%); }
.seat.west { left: 0; top: 50%; transform: translate(0, -50%); }
/* Team color coding - North+South are one team (brand green), East+West the other (brand orange) */
.seat.north, .seat.south { border-color: var(--primary); }
.seat.east, .seat.west { border-color: var(--tertiary); }
.seat.you { box-shadow: 0 0 0 3px var(--accent-yellow), var(--shadow-soft); }
.seat-num {
    width: 26px; height: 26px; border-radius: 50%;
    background: var(--surface);
    display: grid; place-items: center;
    font-family: var(--font-label);
    font-size: 12px; color: var(--on-surface-variant);
    flex: none;
    font-weight: 600;
}
.seat-name { font-weight: 700; font-size: 16px; }
.seat-you {
    margin-left: 8px; font-family: var(--font-label); font-size: 11px; font-weight: 600;
    letter-spacing: 0.06em; text-transform: uppercase;
    color: var(--on-surface); background: var(--accent-yellow);
    padding: 1px 8px; border-radius: var(--rounded-full); vertical-align: 2px;
}
.seat-empty { color: var(--on-surface-variant); font-style: italic; }
.seat-team {
    display: block; margin-top: 2px;
    font-family: var(--font-label); font-size: 11px; color: var(--on-surface-variant); letter-spacing: 0.02em;
}

.share-row { display: flex; gap: 8px; margin-top: 8px; }
.linkbox {
    flex: 1;
    font-family: var(--font-label);
    font-size: 13px;
    background: var(--surface-white);
}
.share h3 { margin: 0; font-family: var(--font-headline); font-weight: 600; }

/* ---------- game ---------- */
.game { gap: 10px; }

/* Table layout: players sit around the board
   (seat 0 = North top, 1 = West left, 2 = South bottom, 3 = East right —
   the index order 0→1→2→3 walks counter-clockwise, passing to each
   player's right-hand neighbour) */
.table {
    display: grid;
    grid-template-areas:
        ". north ."
        "west board east"
        ". south .";
    grid-template-columns: auto 1fr auto;
    grid-template-rows: auto 1fr auto;
    gap: 8px;
    align-items: stretch;
}
.table-north { grid-area: north; }
.table-south { grid-area: south; }
.table-east { grid-area: east; }
.table-west { grid-area: west; }
.table-board { grid-area: board; min-width: 0; background: var(--primary-container); }
.table .player { min-width: 84px; position: relative; }

.player {
    background: var(--surface-white);
    border: 1px solid var(--outline-variant);
    border-radius: var(--rounded);
    padding: 6px 4px;
    text-align: center;
    min-height: 52px;
    box-shadow: var(--shadow-soft);
}
.player.active { border-color: var(--on-surface); box-shadow: 0 0 0 2px var(--on-surface); }
.player.self { background: var(--surface-low); }
.player.gone { opacity: 0.45; }
.player.team-north-south { border-top: 4px solid var(--primary); }
.player.team-east-west { border-top: 4px solid var(--tertiary); }
.player-name {
    display: block;
    font-size: 13px; font-weight: 700;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.player-count { display: block; font-family: var(--font-label); font-size: 15px; color: var(--on-surface-variant); }
.player-side {
    position: absolute;
    top: 4px; right: 6px;
    font-family: var(--font-label); font-size: 10px; font-weight: 600;
    color: var(--on-tertiary-container);
    text-transform: uppercase;
}

@media (max-width: 480px) {
    .table { gap: 6px; }
    .table .player { min-width: 70px; padding: 4px 2px; min-height: 44px; }
    .player-name { font-size: 11px; }
    .player-count { font-size: 13px; }
}

.board { display: flex; flex-direction: column; gap: 8px; }
.ends { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.end {
    background: var(--surface-white);
    border: 1px solid var(--outline-variant);
    padding: 4px 10px; border-radius: var(--rounded);
    font-family: var(--font-label);
    font-weight: 600; font-size: 14px; color: var(--primary);
}
.status {
    font-family: var(--font-label);
    font-size: 12px; letter-spacing: 0.04em; text-transform: uppercase;
    color: var(--on-surface-variant); text-align: center;
}

.chain {
    display: flex; gap: 4px; align-items: center;
    overflow-x: auto;
    padding: 6px 2px;
    /* Tall enough for a double standing across the row, so the chain never
       jumps when the first one lands. */
    min-height: 76px;
}
.chain-empty { color: var(--on-primary-container); font-style: italic; margin: 0 auto; }

/* domino graphics */
.domino {
    display: inline-flex; align-items: stretch;
    background: var(--tile);
    border: 1px solid var(--outline-variant);
    border-radius: 6px;
    box-shadow: var(--shadow-soft);
    flex: none;
    overflow: hidden;
}
.domino-half {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    aspect-ratio: 1;
}
.domino-sep { width: 2px; background: var(--outline-variant); flex: none; }
.pip-cell { display: grid; place-items: center; }
.pip-on::after {
    content: "";
    width: 60%; height: 60%;
    border-radius: 50%;
    background: var(--pip);
}
.domino-board .domino-half { width: 28px; }
.domino-hand { border-radius: var(--rounded); }
.domino-hand .domino-half { width: 24px; }

/* A double lies across the chain: halves stack, the divider turns with them,
   and the tile keeps the same footprint it would have lengthwise. */
.domino-cross { flex-direction: column; }
.domino-cross .domino-half { transform: rotate(90deg); }
.domino-cross .domino-sep { width: auto; height: 2px; }

/* hand */
.hand-label {
    font-family: var(--font-label);
    font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase;
    color: var(--on-surface-variant); margin-bottom: 6px;
}
.hand-row { display: flex; flex-wrap: wrap; gap: 8px; }
.hand-tile {
    appearance: none; border: none; background: none; padding: 0;
    cursor: default;
    border-radius: var(--rounded);
}
.hand-tile.playable { cursor: pointer; box-shadow: 0 0 0 2px var(--primary); }
.hand-tile.playable:active { transform: translateY(2px); }
.hand-tile.picked {
    box-shadow: 0 0 0 3px var(--tertiary), var(--shadow-lift);
    transform: translateY(-4px);
}
.hand-tile.playable .domino { animation: glow 1.6s ease-in-out infinite alternate; }
@keyframes glow { to { filter: brightness(1.04); } }

.actions { display: flex; gap: 10px; }
.actions .btn { flex: 1; }

/* banner for finished games */
.banner { border: 1px solid var(--primary); background: var(--primary-container); color: var(--on-primary-container); text-align: center; }
.banner h3 { margin: 0 0 4px; font-family: var(--font-headline); font-weight: 700; }
.banner p { margin: 4px 0; }
.banner-buttons { display: flex; gap: 10px; margin-top: 10px; }
.banner-buttons .btn { flex: 1; }

/* ---------- closed game: every hand revealed ---------- */
.reveal { display: flex; flex-direction: column; gap: 10px; }
.reveal-head { font-family: var(--font-headline); font-weight: 700; color: var(--on-surface); text-align: center; }
.reveal-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.reveal-name { font-weight: 700; font-size: 14px; }
.reveal-pips { font-family: var(--font-label); font-size: 12px; color: var(--on-surface-variant); }
.reveal-tiles { display: flex; flex-wrap: wrap; gap: 6px; }

/* ---------- placement: pick a tile, then choose its end ---------- */
/* The board ends double as tap targets while a tile is picked. */
.end-btn {
    appearance: none; font: inherit; color: inherit;
    padding: 4px 10px; border-radius: var(--rounded); cursor: pointer;
    transition: box-shadow var(--dur-short), background var(--dur-short), transform var(--dur-short);
}
.end-btn:disabled { cursor: default; }
.end-btn.fit {
    border-color: var(--primary);
    background: var(--primary-container);
    box-shadow: 0 0 0 2px var(--primary);
}
.end-btn.fit:active { transform: scale(0.96); }

.place-bar {
    border: 1px solid var(--tertiary);
    display: flex; flex-direction: column; gap: 10px;
}
.place-head { display: flex; align-items: center; gap: 10px; }
.place-hint {
    color: var(--on-surface); font-size: 14px; font-weight: 700;
    margin-right: auto;
}
.place-cancel { min-height: 36px; padding: 6px 12px; font-size: 14px; }
.place-row { display: flex; gap: 10px; }
.place-row .btn { flex: 1; }
.place-end {
    display: flex; flex-direction: column; align-items: center; gap: 2px;
    min-height: 58px;
}
.place-end-pip { font-family: var(--font-label); font-size: 19px; font-weight: 600; }
.place-end-reads { font-size: 12px; font-weight: 600; opacity: 0.85; }

@media (max-width: 480px) {
    .place-end { min-height: 54px; padding: 8px 6px; }
    .place-end-pip { font-size: 17px; }
    .place-end-reads { font-size: 11px; }
}

.offline-bar {
    text-align: center;
    background: var(--tertiary-container);
    color: var(--on-tertiary-container);
    padding: 8px;
    font-size: 14px;
    font-weight: 700;
}

/* toast */
.toast {
    position: fixed;
    left: 50%;
    bottom: calc(22px + env(safe-area-inset-bottom));
    transform: translateX(-50%);
    max-width: min(480px, 92vw);
    padding: 12px 18px;
    border-radius: var(--rounded);
    font-size: 15px;
    font-weight: 700;
    box-shadow: var(--shadow-lift);
    z-index: 60;
}
.toast-warn { background: var(--error); color: var(--on-primary); }
.toast-info { background: var(--on-surface); color: var(--background); }


/* ---- cumulative partnership scoreboard (game-over banner) ---- */
.score-line { font-family: var(--font-label); font-variant-numeric: tabular-nums; color: var(--on-surface-variant); }
.score-line.match-over { color: var(--on-primary-container); font-weight: 700; }