:root {
    --mine-bg-a: #09120f;
    --mine-bg-b: #16352b;
    --mine-panel: rgba(8, 18, 16, 0.9);
    --mine-panel-soft: rgba(15, 31, 28, 0.95);
    --mine-line: rgba(165, 255, 213, 0.16);
    --mine-text: #effff8;
    --mine-muted: #a7c9bb;
    --mine-accent: #7df3b2;
    --mine-gold: #ffd978;
    --mine-danger: #ff8e83;
}

.minesweeper-page {
    background:
        radial-gradient(circle at top left, rgba(125, 243, 178, 0.15), transparent 30%),
        radial-gradient(circle at bottom right, rgba(255, 217, 120, 0.1), transparent 24%),
        linear-gradient(140deg, var(--mine-bg-a), var(--mine-bg-b));
    color: var(--mine-text);
    padding: 32px 18px 52px;
}

.minesweeper-shell {
    margin: 0 auto;
    max-width: 1360px;
}

.minesweeper-frame {
    background: var(--mine-panel);
    border: 1px solid var(--mine-line);
    border-radius: 30px;
    box-shadow: 0 28px 90px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.minesweeper-topbar,
.minesweeper-main {
    display: grid;
    gap: 24px;
}

.minesweeper-topbar {
    align-items: end;
    border-bottom: 1px solid rgba(165, 255, 213, 0.12);
    grid-template-columns: minmax(0, 1.6fr) minmax(280px, 1fr);
    padding: 30px;
}

.minesweeper-kicker,
.minesweeper-card-kicker {
    color: var(--mine-accent);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    margin: 0 0 10px;
    text-transform: uppercase;
}

.minesweeper-brand h1 {
    font-size: clamp(2.2rem, 4vw, 4rem);
    line-height: 1;
    margin: 0 0 12px;
}

.minesweeper-summary {
    color: var(--mine-muted);
    margin: 0;
    max-width: 680px;
}

.minesweeper-hud {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.minesweeper-hud-card,
.minesweeper-card,
.minesweeper-mini-stat {
    background: var(--mine-panel-soft);
    border: 1px solid rgba(165, 255, 213, 0.16);
    border-radius: 20px;
}

.minesweeper-hud-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-height: 110px;
    padding: 18px;
}

.minesweeper-hud-card span,
.minesweeper-mini-stat span {
    color: var(--mine-muted);
    display: block;
    font-size: 0.84rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.minesweeper-hud-card strong,
.minesweeper-mini-stat strong {
    font-size: clamp(1.4rem, 2vw, 2rem);
    line-height: 1;
}

.minesweeper-hud-card--millix strong,
.minesweeper-mini-stat--accent strong,
.minesweeper-board-meta strong {
    color: var(--mine-gold);
}

.minesweeper-main {
    grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.86fr);
    padding: 30px;
}

.minesweeper-board-panel,
.minesweeper-side-panel {
    display: grid;
    gap: 22px;
}

.minesweeper-toolbar,
.minesweeper-controls,
.minesweeper-claim-stats,
.minesweeper-links {
    display: flex;
    gap: 14px;
}

.minesweeper-toolbar,
.minesweeper-controls {
    align-items: center;
    justify-content: space-between;
}

.minesweeper-difficulty,
.minesweeper-actions,
.minesweeper-mode-switch {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.minesweeper-difficulty button,
.minesweeper-mode-switch button,
.minesweeper-button {
    appearance: none;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(165, 255, 213, 0.18);
    border-radius: 16px;
    color: var(--mine-text);
    cursor: pointer;
    font: inherit;
    transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.minesweeper-difficulty button,
.minesweeper-mode-switch button,
.minesweeper-button {
    padding: 11px 16px;
}

.minesweeper-difficulty button.is-active,
.minesweeper-difficulty button:hover,
.minesweeper-mode-switch button.is-active,
.minesweeper-mode-switch button:hover,
.minesweeper-button:hover {
    background: rgba(125, 243, 178, 0.12);
    border-color: rgba(125, 243, 178, 0.7);
    transform: translateY(-1px);
}

.minesweeper-board-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
    text-align: right;
}

.minesweeper-board-meta span {
    color: var(--mine-muted);
}

.minesweeper-board-meta strong {
    font-size: 1.6rem;
}

.minesweeper-board-wrap {
    background:
        linear-gradient(180deg, rgba(125, 243, 178, 0.05), transparent 16%),
        rgba(5, 15, 12, 0.84);
    border: 1px solid rgba(165, 255, 213, 0.16);
    border-radius: 28px;
    padding: 18px;
}

.minesweeper-board {
    display: grid;
    gap: 6px;
    grid-template-columns: repeat(var(--mine-cols, 9), minmax(0, 1fr));
    margin: 0 auto;
    max-width: 760px;
}

.minesweeper-cell {
    align-items: center;
    appearance: none;
    aspect-ratio: 1;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(165, 255, 213, 0.18);
    border-radius: 12px;
    color: var(--mine-text);
    cursor: pointer;
    display: flex;
    font-size: clamp(0.9rem, 1.6vw, 1.2rem);
    font-weight: 700;
    justify-content: center;
    min-height: 38px;
    padding: 0;
}

.minesweeper-cell.is-revealed {
    background: rgba(255, 255, 255, 0.04);
}

.minesweeper-cell.is-flagged {
    color: var(--mine-gold);
}

.minesweeper-cell.is-mine {
    background: rgba(255, 142, 131, 0.14);
    border-color: rgba(255, 142, 131, 0.44);
    color: var(--mine-danger);
}

.minesweeper-cell[data-adjacent="1"] {
    color: #8fe7ff;
}

.minesweeper-cell[data-adjacent="2"] {
    color: #7df3b2;
}

.minesweeper-cell[data-adjacent="3"] {
    color: #ffd978;
}

.minesweeper-cell[data-adjacent="4"],
.minesweeper-cell[data-adjacent="5"],
.minesweeper-cell[data-adjacent="6"],
.minesweeper-cell[data-adjacent="7"],
.minesweeper-cell[data-adjacent="8"] {
    color: #ffb29b;
}

.minesweeper-card {
    padding: 22px;
}

.minesweeper-claim-stats {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-bottom: 18px;
}

.minesweeper-mini-stat {
    padding: 14px;
}

.minesweeper-status-note,
.minesweeper-help,
.minesweeper-guide span {
    color: var(--mine-muted);
    line-height: 1.6;
}

.minesweeper-guide {
    display: grid;
    gap: 10px;
}

.minesweeper-links {
    margin-top: 18px;
}

.minesweeper-links a {
    color: var(--mine-accent);
    text-decoration: none;
}

.minesweeper-recaptcha {
    margin-top: 18px;
}

@media (max-width: 1080px) {
    .minesweeper-topbar,
    .minesweeper-main {
        grid-template-columns: 1fr;
    }

    .minesweeper-board-meta {
        text-align: left;
    }
}

@media (max-width: 720px) {
    .minesweeper-page {
        padding: 18px 12px 40px;
    }

    .minesweeper-topbar,
    .minesweeper-main {
        padding: 18px;
    }

    .minesweeper-hud,
    .minesweeper-claim-stats {
        grid-template-columns: 1fr;
    }

    .minesweeper-toolbar,
    .minesweeper-controls {
        align-items: stretch;
        flex-direction: column;
    }
}