/* ---------------------------------------------------------------------------
   Puissance 4 — le jouet posé sur une table : plastique bleu, jetons rouges et
   jaunes, bleu de nuit au fond des trous vides. La typographie est une seule
   superfamille, Archivo, déclinée sur son axe de chasse : large pour le titre,
   normale pour l'interface, étroite et tabulaire pour les chiffres.
   --------------------------------------------------------------------------- */

:root {
    color-scheme: dark;

    --room: #1d2230;
    --room-lift: #262c3c;
    --room-edge: #343c50;
    --panel: #1b4fa8;
    --panel-dark: #10336f;
    --panel-light: #2c6bd0;
    --red: #d63f36;
    --yellow: #edb229;
    --ivory: #eef1f6;
    --accent: #79b8ff;
    --hollow: #0b1f3f;

    --ink: var(--ivory);
    --ink-soft: rgb(238 241 246 / 64%);
    --ink-faint: rgb(238 241 246 / 34%);

    --fall: 340ms;
    --gravity: cubic-bezier(0.5, 0, 0.75, 1);
    --ease: cubic-bezier(0.2, 0.9, 0.25, 1);
}

@media (prefers-color-scheme: light) {
    :root {
        color-scheme: light;

        --room: #e6e8ef;
        --room-lift: #f4f5f9;
        --room-edge: #d2d6e2;
        --ink: #1d2230;
        --ink-soft: rgb(29 34 48 / 70%);
        --ink-faint: rgb(29 34 48 / 42%);
        --accent: #1b5fbe;
        --hollow: #0a1a33;
    }
}

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

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

body {
    margin: 0;
    min-height: 100dvh;
    background:
        radial-gradient(120% 90% at 50% -10%, rgb(255 255 255 / 7%), transparent 60%),
        var(--room);
    color: var(--ink);
    font-family: Archivo, "Segoe UI", system-ui, sans-serif;
    font-variation-settings: "wdth" 100;
    font-size: 15px;
    line-height: 1.5;
}

button,
select,
input {
    font: inherit;
    font-variation-settings: inherit;
    color: inherit;
}

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

/* --- charpente ----------------------------------------------------------- */

.room {
    max-width: 1080px;
    margin-inline: auto;
    padding: clamp(20px, 4vw, 44px) clamp(16px, 4vw, 32px) 56px;
}

.masthead {
    margin-bottom: clamp(20px, 3vw, 32px);
}

.masthead__title {
    margin: 0;
    font-size: clamp(36px, 6vw, 54px);
    font-variation-settings: "wdth" 122, "wght" 800;
    letter-spacing: -0.03em;
    line-height: 0.92;
    color: var(--ink);
}

.masthead__note {
    margin: 6px 0 0;
    max-width: 46ch;
    color: var(--ink-soft);
}

.table {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 286px;
    gap: clamp(20px, 3vw, 36px);
    align-items: start;
}

@media (max-width: 920px) {
    .table {
        grid-template-columns: minmax(0, 1fr);
    }
}

.stage {
    display: grid;
    gap: 14px;
    justify-items: center;
}

/* --- la grille ------------------------------------------------------------
   Trois calques empilés : le panneau bleu avec ses quarante-deux trous vides,
   les jetons qui glissent derrière lui, et par-dessus les sept colonnes
   cliquables, dont les biseaux redonnent aux jetons leur profondeur.
   -------------------------------------------------------------------------- */

.board {
    width: 100%;
    max-width: min(620px, 72vh);
}

.board__numbers {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    padding: 0 10px 4px;

    /* Un jeton lâché part d'une rangée au-dessus du panneau : on lui laisse la place,
       au-dessus des numéros, qui restent au contact de la grille qu'ils désignent. */
    margin-top: calc(100% / 9);
    color: var(--ink-faint);
    font-size: 13px;
    font-variation-settings: "wdth" 84, "wght" 600;
    font-variant-numeric: tabular-nums;
    text-align: center;
}

.board--bare .board__numbers {
    visibility: hidden;
}

.board__panel {
    position: relative;
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    padding: 10px;
    border-radius: 14px 14px 4px 4px;
    background: linear-gradient(170deg, var(--panel-light), var(--panel) 46%, var(--panel-dark));
    box-shadow:
        0 1px 0 rgb(255 255 255 / 22%) inset,
        0 -3px 0 rgb(0 0 0 / 22%) inset,
        0 18px 44px rgb(0 0 0 / 38%),
        0 2px 6px rgb(0 0 0 / 30%);
}

/* Le fond d'un trou vide. */
.back {
    aspect-ratio: 1;
    background: radial-gradient(circle at 50% 50%, var(--hollow) 0 39%, transparent 39.5%);
}

.board__discs,
.board__columns {
    position: absolute;
    inset: 10px;
}

.board__columns {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
}

.column {
    position: relative;
    display: grid;
    grid-template-rows: repeat(6, 1fr);
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
}

.column:disabled {
    cursor: default;
}

/* Le biseau du trou, dessiné par-dessus le jeton : c'est lui qui l'enfonce. */
.hole {
    aspect-ratio: 1;
    border-radius: 50%;
    box-shadow:
        0 2px 5px rgb(0 0 0 / 40%) inset,
        0 -1px 2px rgb(255 255 255 / 20%) inset;
    scale: 0.78;
}

/* Survol d'une colonne jouable : un jeton fantôme attend sur sa case. */
.column:not(:disabled):hover::before,
.column:not(:disabled):focus-visible::before {
    content: "";
    position: absolute;
    left: 0;
    top: calc(var(--landing) * 100% / 6);
    width: 100%;
    height: calc(100% / 6);
    background: radial-gradient(circle at 50% 50%, rgb(121 184 255 / 30%) 0 39%, transparent 39.5%);
    pointer-events: none;
}

/* Dernière colonne jouée : un repère discret sur la tranche du panneau. */
.column.is-last::after {
    content: "";
    position: absolute;
    inset: -7px 22% auto;
    height: 3px;
    border-radius: 2px;
    background: var(--accent);
}

/* --- jetons -------------------------------------------------------------- */

.disc {
    position: absolute;
    top: 0;
    left: 0;
    width: calc(100% / 7);
    height: calc(100% / 6);
    display: grid;
    place-items: center;
    translate: calc(var(--c) * 100%) calc(var(--r) * 100%);
    transition: translate var(--fall) var(--gravity);
}

.disc::before {
    content: "";
    width: 78%;
    aspect-ratio: 1;
    border-radius: 50%;
    background: var(--face);
    box-shadow:
        0 0 0 1px rgb(0 0 0 / 28%),
        0 2px 4px rgb(0 0 0 / 30%),
        0 0 0 3px var(--rim) inset,
        0 -3px 6px rgb(0 0 0 / 26%) inset,
        0 3px 7px rgb(255 255 255 / 26%) inset;
}

.disc--red {
    --face: radial-gradient(70% 70% at 34% 28%, #f2705f, var(--red) 54%, #8f221c);
    --rim: rgb(0 0 0 / 14%);
}

.disc--yellow {
    --face: radial-gradient(70% 70% at 34% 28%, #ffdd7a, var(--yellow) 54%, #a5730c);
    --rim: rgb(0 0 0 / 14%);
}

/* L'alignement gagnant : les quatre jetons s'éclairent. */
.disc--winning::after {
    content: "";
    position: absolute;
    width: 78%;
    aspect-ratio: 1;
    border-radius: 50%;
    box-shadow: 0 0 0 3px var(--ivory), 0 0 18px rgb(238 241 246 / 55%);
    animation: glow 1.4s var(--ease) infinite;
}

@keyframes glow {
    0%, 100% { opacity: 0.45; }
    50% { opacity: 1; }
}

/* --- décompte ------------------------------------------------------------ */

.tally {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 22px;
    width: 100%;
    max-width: min(620px, 72vh);
    color: var(--ink-soft);
    font-size: 13px;
    font-variant-numeric: tabular-nums;
}

.tally__side {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.chip {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    box-shadow: 0 0 0 1px rgb(0 0 0 / 35%);
}

.chip--red {
    background: linear-gradient(150deg, #f2705f, #8f221c);
}

.chip--yellow {
    background: linear-gradient(150deg, #ffdd7a, #a5730c);
}

/* --- colonne de droite --------------------------------------------------- */

.rail {
    display: grid;
    gap: 14px;
}

.turn,
.panel,
.record {
    padding: 14px 16px;
    border: 1px solid var(--room-edge);
    border-radius: 3px;
    background: var(--room-lift);
}

.turn {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 4px 10px;
    border-left: 3px solid var(--accent);
}

.turn--over {
    border-left-color: var(--ink-faint);
}

.turn__mark {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    box-shadow: 0 0 0 1px rgb(0 0 0 / 40%);
}

.turn__mark--red {
    background: linear-gradient(150deg, #f2705f, #8f221c);
}

.turn__mark--yellow {
    background: linear-gradient(150deg, #ffdd7a, #a5730c);
}

.turn__mark--none {
    background: var(--ink-faint);
}

.turn__text {
    font-variation-settings: "wdth" 104, "wght" 620;
}

.turn__hint {
    grid-column: 2;
    color: var(--accent);
    font-size: 13px;
    font-variation-settings: "wdth" 92, "wght" 600;
}

.panel {
    display: grid;
    gap: 12px;
}

.seat {
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: 6px;
}

.seat__name {
    color: var(--ink-soft);
    font-size: 13px;
}

.pill {
    padding: 5px 11px;
    border: 1px solid var(--room-edge);
    border-radius: 2px;
    background: transparent;
    color: var(--ink-soft);
    font-size: 13px;
    cursor: pointer;
}

.pill--on {
    border-color: var(--accent);
    background: rgb(121 184 255 / 16%);
    color: var(--ink);
    font-variation-settings: "wght" 620;
}

.field {
    display: grid;
    gap: 5px;
}

.field__name,
.check {
    color: var(--ink-soft);
    font-size: 13px;
}

.field select {
    padding: 6px 8px;
    border: 1px solid var(--room-edge);
    border-radius: 2px;
    background: var(--room);
    cursor: pointer;
}

.check {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.check input {
    accent-color: var(--accent);
}

.actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 2px;
}

.button {
    padding: 9px 10px;
    border: 1px solid var(--room-edge);
    border-radius: 2px;
    background: transparent;
    cursor: pointer;
    font-size: 13px;
    font-variation-settings: "wght" 560;
}

.button:hover:not(:disabled) {
    border-color: var(--accent);
}

.button--strong {
    border-color: var(--accent);
    background: var(--accent);
    color: #0d1b2e;
    font-variation-settings: "wght" 660;
}

.button:disabled {
    opacity: 0.42;
    cursor: default;
}

/* --- relevé -------------------------------------------------------------- */

.record__name {
    margin: 0 0 8px;
    font-size: 13px;
    font-variation-settings: "wdth" 92, "wght" 640;
    color: var(--ink-soft);
}

.record__empty {
    margin: 0;
    color: var(--ink-faint);
    font-size: 13px;
}

.record__list {
    margin: 0;
    padding: 0;
    max-height: 288px;
    overflow-y: auto;
    list-style: none;
    font-variant-numeric: tabular-nums;
    font-variation-settings: "wdth" 88;
    font-size: 13px;
}

.record__turn {
    display: grid;
    grid-template-columns: 26px 1fr 1fr;
    gap: 6px;
    padding: 3px 0;
    border-bottom: 1px solid var(--room-edge);
}

.record__number {
    color: var(--ink-faint);
}

/* --- échange de parties -------------------------------------------------- */

.actions--three {
    grid-template-columns: repeat(3, 1fr);
}

.pcn {
    width: 100%;
    padding: 9px 10px;
    border: 1px solid var(--room-edge);
    border-radius: 2px;
    background: var(--room);
    color: var(--ink);
    font-size: 12px;
    font-variation-settings: "wdth" 88;
    font-variant-numeric: tabular-nums;
    line-height: 1.45;
    resize: vertical;
}

.pcn::placeholder {
    color: var(--ink-faint);
}

.notice {
    margin: 2px 0 0;
    color: var(--ink-soft);
    font-size: 13px;
}

.notice--bad {
    color: var(--accent);
}

/* --- amorçage ------------------------------------------------------------ */

.boot {
    display: grid;
    place-items: center;
    gap: 16px;
    min-height: 100dvh;
}

.boot__disc {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: radial-gradient(70% 70% at 34% 28%, #f2705f, #d63f36 54%, #8f221c);
    box-shadow: 0 0 0 3px rgb(0 0 0 / 14%) inset, 0 4px 12px rgb(0 0 0 / 35%);
    animation: drop 1.4s var(--gravity) infinite;
}

.boot__text {
    margin: 0;
    color: var(--ink-soft);
}

@keyframes drop {
    0% { translate: 0 -14px; opacity: 0.2; }
    60% { translate: 0 10px; opacity: 1; }
    100% { translate: 0 -14px; opacity: 0.2; }
}

#blazor-error-ui {
    display: none;
    position: fixed;
    inset: auto 0 0 0;
    z-index: 100;
    padding: 12px 20px;
    background: var(--accent);
    color: #0d1b2e;
    box-shadow: 0 -2px 16px rgb(0 0 0 / 35%);
}

#blazor-error-ui .dismiss {
    float: right;
    cursor: pointer;
}

@media (prefers-reduced-motion: reduce) {
    .disc {
        transition: none;
    }

    .disc--winning::after,
    .boot__disc {
        animation: none;
    }
}