:root {
    --game-primary: #c90c0f;
    --game-secondary: #f4c430;
}

body.pr-page {
    margin: 0;
    min-height: 100vh;
    font-family: "Rockwell", "Rockwell Nova", "Roboto Slab", serif;
    color: #f4f7fb;
    overflow-x: hidden;
    --btn-secondary-text: #c90c0f;
    background:
        radial-gradient(circle at 14% 8%, rgba(244, 196, 48, 0.16), transparent 42%),
        radial-gradient(circle at 88% 10%, rgba(201, 12, 15, 0.2), transparent 46%),
        linear-gradient(180deg, #0b1220 0%, #152238 48%, #070b14 100%);
}

body.pr-page.game-menu-active {
    overflow-y: auto;
    overflow-x: hidden;
}

body.pr-page.game-menu-active #game-header {
    display: none !important;
}

.pr-page .game-screen {
    display: none;
    min-height: 100vh;
}

.pr-page .game-screen.active {
    display: block;
}

body.pr-page.with-game-header .pr-shell {
    padding-top: 5.5rem;
}

.pr-shell {
    max-width: min(760px, 96vw);
    margin: 0 auto;
    padding: 1.1rem 0.75rem 2.5rem;
}

.pr-hud {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    max-width: 420px;
    margin: 0 auto 0.85rem;
    padding: 0.55rem 0.7rem;
    background: linear-gradient(180deg, #1c4558, #102834);
    border: 3px solid #07141d;
    border-radius: 12px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 10px 24px rgba(0, 0, 0, 0.35);
}

.pr-lcd {
    min-width: 4.2rem;
    padding: 0.2rem 0.45rem;
    background: #041016;
    color: #f5c518;
    font-family: "Courier New", ui-monospace, monospace;
    font-size: 1.15rem;
    font-weight: 700;
    text-align: center;
    border-radius: 6px;
    box-shadow: inset 0 0 0 2px #7f1d1d, inset 0 8px 16px rgba(0, 0, 0, 0.45);
}

.pr-lcd span {
    display: block;
    font-size: 0.62rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #4cc9f0;
}

.pr-chip {
    padding: 0.45rem 0.7rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: #fde68a;
    font-weight: 700;
}

.pr-toolbar {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.45rem;
    margin: 0 auto 0.85rem;
    max-width: 420px;
}

.pr-tool-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 0.75rem;
    min-height: 44px;
    border-radius: 999px;
    border: 1px solid rgba(76, 201, 240, 0.28);
    background: rgba(7, 20, 29, 0.7);
    color: #f4f7fb;
    font-weight: 700;
    cursor: pointer;
}

.pr-tool-btn:hover:not(:disabled) {
    border-color: #f5c518;
    color: #f5c518;
}

.pr-tool-btn:disabled {
    opacity: 0.45;
    cursor: default;
}

.pr-status {
    text-align: center;
    min-height: 1.4rem;
    margin: 0 auto 0.75rem;
    color: #fde68a;
    font-weight: 700;
}

.pr-board-wrap {
    display: flex;
    justify-content: center;
    padding: 0.35rem 0.25rem 0.5rem;
}

.pr-field {
    position: relative;
    width: min(360px, 94vw);
    height: min(480px, 72vh);
    background:
        radial-gradient(circle at 50% 0%, rgba(244, 196, 48, 0.08), transparent 46%),
        linear-gradient(180deg, #102038, #0b1220);
    border: 4px solid #07141d;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.35), 0 16px 32px rgba(0, 0, 0, 0.4);
    touch-action: manipulation;
}

.pr-field::after {
    content: "";
    position: absolute;
    left: 8%;
    right: 8%;
    bottom: 8px;
    height: 4px;
    border-radius: 999px;
    background: rgba(201, 12, 15, 0.55);
    pointer-events: none;
}

.pr-tile {
    position: absolute;
    top: 0;
    left: 0;
    width: 64px;
    height: 48px;
    margin: 0;
    padding: 0;
    border: 2px solid #7f1d1d;
    border-radius: 10px;
    background: linear-gradient(180deg, #3a1c24, #1f1016);
    color: #f8f1e3;
    font-family: "Rockwell", "Rockwell Nova", "Roboto Slab", serif;
    font-size: 1.2rem;
    font-weight: 800;
    cursor: pointer;
    touch-action: manipulation;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    box-shadow: 0 4px 0 #3d0c10, 0 8px 12px rgba(0, 0, 0, 0.28);
}

.pr-tile.is-prime {
    border-color: #334155;
    background: linear-gradient(180deg, #1e293b, #0f172a);
}

.pr-field.is-easy .pr-tile.is-prime::after {
    content: "";
    position: absolute;
    top: 4px;
    right: 4px;
    width: 8px;
    height: 8px;
    border-radius: 2px;
    background: #f4c430;
    box-shadow: 0 0 0 1px #7a5b10;
}

.pr-tile:focus-visible {
    outline: 3px solid #f4c430;
    outline-offset: 2px;
}

.pr-hint {
    text-align: center;
    color: #c5d4de;
    font-size: 0.92rem;
    margin: 0.85rem 0 0;
}

.pr-settings-panel__label {
    margin: 0 0 0.45rem;
    color: #1a120c;
    font-weight: 600;
}

.pr-settings-panel__buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-bottom: 0.85rem;
}

#settingsModal .difficulty-pill {
    border: 1px solid #fed7aa;
    border-radius: 999px;
    padding: 0.5rem 0.85rem;
    background: #fff7ed;
    color: #1a120c !important;
    font-weight: 600;
    cursor: pointer;
}

#settingsModal .difficulty-pill.is-selected,
#settingsModal .difficulty-pill:hover {
    background: #c90c0f;
    color: #fff !important;
    border-color: #c90c0f;
}

#settingsModal .pr-settings-panel__note {
    margin: 0.75rem 0 0;
    color: #7f1d1d;
    font-size: 0.9rem;
}

.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.72);
    z-index: 12000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: #fff;
    color: #1a1a1a;
    border-radius: 1rem;
    max-width: 640px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-large {
    max-width: 760px;
}

.modal-header,
.modal-footer {
    padding: 1.1rem 1.4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.modal-header {
    border-bottom: 2px solid #eee;
}

.modal-header h2 {
    margin: 0;
    color: #c90c0f;
    font-size: 1.35rem;
}

.modal-close {
    background: #fff !important;
    border: 2px solid #c90c0f;
    color: #c90c0f !important;
    border-radius: 8px;
    cursor: pointer;
    padding: 0.35rem 0.55rem;
}

#helpModal .modal-close,
#resultModal .modal-close,
#statsModal .modal-close,
#settingsModal .modal-close {
    background: #fff !important;
    color: #c90c0f !important;
}

#helpModal .modal-close:hover,
#resultModal .modal-close:hover,
#statsModal .modal-close:hover,
#settingsModal .modal-close:hover {
    background: #c90c0f !important;
    color: #fff !important;
}

.modal-close:hover {
    background: #c90c0f !important;
    color: #fff !important;
}

.modal-body {
    padding: 1.2rem 1.4rem;
}

.modal-footer {
    border-top: 2px solid #eee;
    justify-content: flex-end;
    flex-wrap: wrap;
}

.help-section {
    margin-bottom: 1.1rem;
}

.help-section h3 {
    color: #c90c0f;
    margin: 0 0 0.4rem;
}

.help-section ul {
    margin: 0.3rem 0 0;
    padding-left: 1.2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.stat-card {
    background: #f8fafc;
    border-radius: 12px;
    padding: 0.85rem;
    text-align: center;
}

.stat-value {
    font-size: 1.6rem;
    color: #c90c0f;
    font-weight: 700;
}

.stat-label {
    color: #64748b;
    font-size: 0.85rem;
}

.difficulty-stats {
    display: grid;
    gap: 0.45rem;
}

.difficulty-stats div {
    display: flex;
    justify-content: space-between;
    padding: 0.45rem 0.55rem;
    background: #f8fafc;
    border-radius: 8px;
}

.result-message {
    font-size: 1.05rem;
    margin: 0 0 1rem;
}

.win-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.6rem;
    text-align: center;
}

.win-stat strong {
    display: block;
    font-size: 1.35rem;
    color: #c90c0f;
}

.win-stat span {
    color: #64748b;
    font-size: 0.82rem;
}

.pr-page .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.65rem 1.1rem;
    border-radius: 0.55rem;
    border: 2px solid transparent;
    font-weight: 700;
    cursor: pointer;
}

.pr-page .btn-primary {
    background: #c90c0f !important;
    color: #fff !important;
    border-color: #c90c0f;
}

.pr-page .btn-secondary {
    background: #fff !important;
    color: #c90c0f !important;
    border-color: #c90c0f;
}

.pr-page .btn-secondary:hover,
#resultModal .btn-secondary:hover,
#statsModal .btn-secondary:hover,
#settingsModal .btn-secondary:hover {
    background: #c90c0f !important;
    color: #fff !important;
}

@media (max-width: 640px) {
    body.pr-page.with-game-header .pr-shell {
        padding-top: 0.75rem;
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }

    .pr-hud {
        max-width: 100%;
    }

    .pr-lcd {
        min-width: 0;
        flex: 1 1 0;
    }
}