/* MegaGem multiplayer — minimal dark theme.
   Kept small and self-contained; no framework, no preprocessor. */

:root {
    --bg: #0f1220;
    --bg-card: #1a1e33;
    --bg-card-alt: #242944;
    --border: #323759;
    --text: #e9ecff;
    --muted: #8a90b8;
    --accent: #6b8cff;
    --accent-dark: #4766d8;
    --success: #5ee59a;
    --warn: #ffbb55;
    --danger: #ff6b6b;

    --blue: #5aa9ff;
    --green: #5ee59a;
    --pink: #ff6fbc;
    --purple: #b96bff;
    --yellow: #ffd93d;
    --page-padding: 20px;
    --topbar-height: 50px;
}

* {
    box-sizing: border-box;
}

/* Make the HTML `hidden` attribute win over any author `display` rule.
   Without this, elements like `.screen { display: flex }` and
   `#host-controls.row { display: flex }` override the UA stylesheet's
   `[hidden] { display: none }` and all screens end up visible at once. */
[hidden] {
    display: none !important;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    font-size: 15px;
    line-height: 1.4;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

.topbar h1 {
    margin: 0;
    font-size: 20px;
    font-weight: 700;
}

.subtle {
    color: var(--muted);
    font-weight: 400;
    font-size: 14px;
}

.topbar-actions {
    display: flex;
    gap: 8px;
}

main {
    padding: var(--page-padding);
    max-width: 1200px;
    margin: 0 auto;
}

.screen {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* --- Cards --------------------------------------------------------- */

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
    max-width: 560px;
    margin: 0 auto;
    width: 100%;
}

.card h2 {
    margin-top: 0;
    margin-bottom: 16px;
}

.card h3 {
    margin-top: 16px;
    margin-bottom: 8px;
    font-size: 15px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card h4 {
    margin: 12px 0 6px;
    font-size: 13px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* --- Fields + buttons --------------------------------------------- */

.field {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 12px;
}

.field > span {
    font-size: 13px;
    color: var(--muted);
}

.field input,
.field select,
input[type="number"],
input[type="text"],
select {
    background: var(--bg-card-alt);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 15px;
    font-family: inherit;
}

.field input:focus,
.field select:focus,
input:focus,
select:focus {
    outline: none;
    border-color: var(--accent);
}

.row {
    display: flex;
    gap: 10px;
    align-items: flex-end;
}

.grow {
    flex: 1;
}

button {
    font-family: inherit;
    font-size: 15px;
    padding: 10px 16px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg-card-alt);
    color: var(--text);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

button:hover:not(:disabled) {
    background: var(--border);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #0b0e1f;
    font-weight: 600;
}

.primary:hover:not(:disabled) {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
}

.secondary {
    background: transparent;
    border-color: var(--accent);
    color: var(--accent);
}

.secondary:hover:not(:disabled) {
    background: var(--bg-card-alt);
}

.ghost {
    background: transparent;
    border: 1px solid transparent;
    color: var(--muted);
    padding: 6px 12px;
    text-decoration: none;
    font-size: 14px;
}

.ghost:hover {
    color: var(--text);
    border-color: var(--border);
}

.muted {
    color: var(--muted);
    font-size: 13px;
}

.mono {
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    background: var(--bg-card-alt);
    padding: 2px 8px;
    border-radius: 4px;
    letter-spacing: 0.1em;
}

/* --- Lobby slot list ---------------------------------------------- */

.slot-list {
    list-style: none;
    padding: 0;
    margin: 12px 0;
}

.slot-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    background: var(--bg-card-alt);
    border-radius: 6px;
    margin-bottom: 6px;
}

.slot-list .slot-name {
    font-weight: 600;
}

.slot-list .slot-tag {
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 10px;
    margin-left: 8px;
}

.slot-list .slot-tag.human {
    background: rgba(107, 140, 255, 0.2);
    color: var(--accent);
}

.slot-list .slot-tag.ai {
    background: rgba(94, 229, 154, 0.2);
    color: var(--success);
}

.slot-list .slot-tag.host {
    background: rgba(255, 187, 85, 0.2);
    color: var(--warn);
}

.slot-list button {
    padding: 4px 10px;
    font-size: 12px;
}

/* --- Game screen --------------------------------------------------- */

.game-layout {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 1100px;
    margin: 0 auto;
}

.game-main {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.game-layout .card {
    max-width: none;
    margin: 0;
}

.board-header {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 12px;
}

.board-header b {
    color: var(--text);
}

.auction-row {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    flex-wrap: wrap;
}

.auction-card {
    background: var(--bg-card-alt);
    border: 2px solid var(--accent);
    border-radius: 8px;
    padding: 14px 18px;
    font-weight: 600;
    min-width: 140px;
    text-align: center;
}

.gem-row {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    min-height: 28px;
}

.gem {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    color: #0b0e1f;
}

.gem.Blue { background: var(--blue); }
.gem.Green { background: var(--green); }
.gem.Pink { background: var(--pink); }
.gem.Purple { background: var(--purple); }
.gem.Yellow { background: var(--yellow); }

.gem.clickable {
    cursor: pointer;
    transition: transform 0.1s;
}

.gem.clickable:hover {
    transform: scale(1.1);
    border-color: white;
}

.mission-list,
.player-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

/* --- Mission cards ------------------------------------------------- */

.mission-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: var(--bg-card-alt);
    border-radius: 8px;
    margin-bottom: 6px;
    font-size: 13px;
    border-left: 3px solid transparent;
}

.mission-pendant { border-left-color: var(--pink); color: var(--pink); }
.mission-crown   { border-left-color: var(--yellow); color: var(--yellow); }
.mission-shield  { border-left-color: var(--purple); color: var(--purple); }

.mission-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    flex-shrink: 0;
}

.mission-pendant .mission-icon { background: rgba(255, 111, 188, 0.15); }
.mission-crown   .mission-icon { background: rgba(255, 217, 61, 0.15); }
.mission-shield  .mission-icon { background: rgba(185, 107, 255, 0.15); }

.mission-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1px;
    min-width: 0;
}

.mission-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 700;
    opacity: 0.8;
}

.mission-desc {
    color: var(--text);
    font-size: 13px;
    line-height: 1.3;
}

.mission-coins {
    flex-shrink: 0;
    background: rgba(255, 217, 61, 0.15);
    color: var(--yellow);
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 10px;
    white-space: nowrap;
}

.mission-coins::after {
    content: "c";
    font-size: 9px;
    margin-left: 1px;
    opacity: 0.7;
}

/* Small mission icons in player sub-line */
.mission-icon-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    margin-left: 2px;
    vertical-align: middle;
}

.mission-icon-sm svg {
    width: 14px;
    height: 14px;
}

/* Mission completion log coloring */
.log .entry.mission-log-pendant { color: var(--pink); }
.log .entry.mission-log-crown   { color: var(--yellow); }
.log .entry.mission-log-shield  { color: var(--purple); }

.player-list li {
    padding: 10px 12px;
    background: var(--bg-card-alt);
    border-radius: 6px;
    margin-bottom: 6px;
}

.player-list .player-top {
    display: flex;
    justify-content: space-between;
    font-weight: 600;
    margin-bottom: 4px;
}

.player-list .player-sub {
    color: var(--muted);
    font-size: 12px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.player-list li.winner {
    border-left: 3px solid var(--warn);
}

.player-list li.self {
    background: rgba(107, 140, 255, 0.15);
}

.you-stats {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
    color: var(--muted);
}

.you-stats b {
    color: var(--text);
}

.you #g-you-hand .gem {
    width: 32px;
    height: 32px;
}

.log {
    max-height: 260px;
    overflow-y: auto;
    font-size: 13px;
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    background: var(--bg-card-alt);
    padding: 10px;
    border-radius: 6px;
}

.log .entry {
    padding: 4px 0;
    border-bottom: 1px dashed var(--border);
}

.log .entry:last-child {
    border-bottom: none;
}

.log .entry.winner {
    color: var(--success);
}

/* --- Scores -------------------------------------------------------- */

.score-list {
    padding-left: 24px;
}

.score-list li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.score-list li:first-child {
    color: var(--warn);
    font-weight: 700;
    font-size: 17px;
}

/* --- Leaderboards -------------------------------------------------- */

.leaderboard-card {
    max-width: 900px;
}

.leaderboard-stats {
    margin-bottom: 12px;
    font-style: italic;
}

.leaderboard-tables {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

.leaderboard-section h3 {
    margin: 0 0 8px;
    color: var(--text);
    text-transform: none;
    letter-spacing: 0;
    font-size: 16px;
    font-weight: 700;
}

.leaderboard-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    background: var(--bg-card-alt);
    border-radius: 6px;
    overflow: hidden;
}

.leaderboard-table th,
.leaderboard-table td {
    padding: 8px 10px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.leaderboard-table th {
    color: var(--muted);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.leaderboard-table tr:last-child td {
    border-bottom: none;
}

.leaderboard-table .ai-name {
    font-weight: 600;
    color: var(--accent);
}

.leaderboard-table .win-rate {
    font-weight: 700;
    color: var(--success);
    text-align: right;
}

.leaderboard-table .games {
    color: var(--muted);
    text-align: right;
}

.leaderboard-table .rank-1 .win-rate {
    color: var(--warn);
}

.leaderboard-empty {
    color: var(--muted);
    font-style: italic;
    padding: 16px 8px;
    text-align: center;
    background: var(--bg-card-alt);
    border-radius: 6px;
}

/* --- Chat panel ---------------------------------------------------- */

.chat-card {
    max-width: 1100px;
    margin: 16px auto 0;
}

.chat-messages {
    max-height: 180px;
    min-height: 80px;
    overflow-y: auto;
    background: var(--bg-card-alt);
    border-radius: 6px;
    padding: 10px 12px;
    font-size: 14px;
    margin-bottom: 10px;
}

.chat-messages .chat-entry {
    padding: 3px 0;
    word-wrap: break-word;
}

.chat-messages .chat-entry .chat-from {
    font-weight: 600;
    color: var(--accent);
    margin-right: 6px;
}

.chat-messages .chat-entry.self .chat-from {
    color: var(--success);
}

.chat-messages .chat-entry.system {
    color: var(--muted);
    font-style: italic;
    font-size: 13px;
}

.chat-messages .chat-empty {
    color: var(--muted);
    font-size: 13px;
    font-style: italic;
}

.chat-input-row {
    display: flex;
    gap: 8px;
}

.chat-input-row input {
    flex: 1;
}

/* --- Connection status -------------------------------------------- */

.conn-status {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 12px;
    background: var(--bg-card-alt);
    color: var(--muted);
    border: 1px solid var(--border);
}

.conn-status.connected {
    color: var(--success);
    border-color: rgba(94, 229, 154, 0.4);
}

.conn-status.reconnecting {
    color: var(--warn);
    border-color: rgba(255, 187, 85, 0.4);
}

.conn-status.offline {
    color: var(--danger);
    border-color: rgba(255, 107, 107, 0.4);
}

/* --- Toast --------------------------------------------------------- */

.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--bg-card-alt);
    border: 1px solid var(--accent);
    padding: 12px 16px;
    border-radius: 6px;
    max-width: 300px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    z-index: 100;
}

.toast.error {
    border-color: var(--danger);
}

/* --- Responsive ---------------------------------------------------- */

/* Desktop 3-column game layout: game | log | chat */
@media (min-width: 1100px) {
    main.game-active {
        max-width: 1500px;
    }

    .game-layout {
        display: grid;
        grid-template-columns: 1fr 320px 300px;
        gap: 16px;
        max-width: none;
        align-items: start;
    }

    .game-layout .log-card {
        position: sticky;
        top: var(--page-padding);
        display: flex;
        flex-direction: column;
        max-height: calc(100vh - var(--page-padding) * 2 - var(--topbar-height));
    }

    .game-layout .log-card .log {
        flex: 1;
        min-height: 0;
        max-height: none;
        overflow-y: auto;
    }

    .game-layout .chat-card {
        position: sticky;
        top: var(--page-padding);
        max-width: none;
        margin: 0;
        display: flex;
        flex-direction: column;
        max-height: calc(100vh - var(--page-padding) * 2 - var(--topbar-height));
    }

    .game-layout .chat-card .chat-messages {
        flex: 1;
        min-height: 0;
        max-height: none;
    }
}