html, body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

h1:focus {
    outline: none;
}

a, .btn-link {
    color: #0071c1;
}

.btn-primary {
    color: #fff;
    background-color: #1b6ec2;
    border-color: #1861ac;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

.content {
    padding-top: 1.1rem;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid red;
}

.validation-message {
    color: red;
}

#blazor-error-ui {
    color-scheme: light only;
    background: lightyellow;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    box-sizing: border-box;
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 0.75rem;
        top: 0.5rem;
    }

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.loading-progress {
    position: absolute;
    display: block;
    width: 8rem;
    height: 8rem;
    inset: 20vh 0 auto 0;
    margin: 0 auto 0 auto;
}

    .loading-progress circle {
        fill: none;
        stroke: #e0e0e0;
        stroke-width: 0.6rem;
        transform-origin: 50% 50%;
        transform: rotate(-90deg);
    }

        .loading-progress circle:last-child {
            stroke: #1b6ec2;
            stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
            transition: stroke-dasharray 0.05s ease-in-out;
        }

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: bold;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
}

    .loading-progress-text:after {
        content: var(--blazor-load-percentage-text, "Loading");
    }

code {
    color: #c02d76;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}
/* Erbil Chess */
.chess-page {
    max-width: 1150px;
    margin: 0 auto;
    padding: 32px 20px;
}

.chess-header {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    align-items: flex-start;
    margin-bottom: 28px;
}

.chess-kicker {
    margin: 0 0 8px;
    font-size: 14px;
    font-weight: 700;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.chess-header h1 {
    margin: 0 0 10px;
    font-size: clamp(36px, 6vw, 64px);
    line-height: 1;
}

.chess-header p {
    margin: 0;
    color: #64748b;
    max-width: 650px;
}

.chess-status {
    min-width: 150px;
    padding: 16px 18px;
    border-radius: 18px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
}

.chess-status span {
    display: block;
    color: #64748b;
    font-size: 14px;
    margin-bottom: 4px;
}

.chess-status strong {
    font-size: 22px;
}

.chess-layout {
    display: grid;
    grid-template-columns: minmax(320px, 640px) minmax(260px, 1fr);
    gap: 28px;
    align-items: start;
}

.chess-board {
    width: min(100%, 640px);
    aspect-ratio: 1 / 1;
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    border-radius: 22px;
    overflow: hidden;
    border: 10px solid #1e293b;
    box-shadow: 0 24px 70px rgba(15, 23, 42, 0.22);
}

.chess-square {
    border: 0;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
}

.light-square {
    background: #f1e5cf;
}

.dark-square {
    background: #8b5e3c;
}

.chess-square:hover {
    filter: brightness(1.06);
}

.selected-square {
    outline: 4px solid #38bdf8;
    outline-offset: -4px;
}

.possible-square::after {
    content: "";
    width: 24%;
    height: 24%;
    border-radius: 999px;
    background: rgba(14, 165, 233, 0.55);
    position: absolute;
}

.chess-piece {
    font-size: clamp(32px, 7vw, 64px);
    line-height: 1;
    z-index: 1;
    user-select: none;
}

.white-piece {
    color: #ffffff;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.55);
}

.black-piece {
    color: #111827;
    text-shadow: 0 1px 3px rgba(255, 255, 255, 0.35);
}

.chess-panel {
    padding: 24px;
    border-radius: 22px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
}

.chess-panel h2 {
    margin: 0 0 10px;
}

.chess-panel p {
    color: #64748b;
}

.selected-box,
.info-box {
    margin-top: 18px;
    padding: 14px 16px;
    border-radius: 14px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
}

.selected-box.muted {
    color: #64748b;
}

.info-box {
    display: grid;
    gap: 6px;
    color: #64748b;
}

.info-box strong {
    color: #111827;
}

.reset-button {
    margin-top: 18px;
    width: 100%;
    border: 0;
    border-radius: 14px;
    padding: 12px 16px;
    background: #111827;
    color: white;
    font-weight: 700;
    cursor: pointer;
}

.reset-button:hover {
    background: #1f2937;
}

@media (max-width: 900px) {
    .chess-header {
        flex-direction: column;
    }

    .chess-layout {
        grid-template-columns: 1fr;
    }
}

/* Clean app shell */
html,
body {
    min-height: 100%;
    background: #f4f7fb;
}

.app-shell {
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(59, 130, 246, 0.10), transparent 34%),
        linear-gradient(135deg, #f8fafc 0%, #eef2f7 100%);
}

/* Chess board distortion fix */
.chess-board {
    display: grid;
    grid-template-columns: repeat(8, minmax(0, 1fr));
    grid-template-rows: repeat(8, minmax(0, 1fr));
}

.chess-square {
    width: 100%;
    height: 100%;
    min-width: 0;
    min-height: 0;
    aspect-ratio: 1 / 1;
}

.chess-piece {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    font-family: "Segoe UI Symbol", "Noto Sans Symbols 2", "Arial Unicode MS", serif;
}

.check-warning {
    margin-top: 10px;
    padding: 8px 10px;
    border-radius: 10px;
    background: #fee2e2;
    color: #991b1b;
    font-size: 14px;
    font-weight: 800;
}

.game-state-box {
    margin: 0 0 18px;
    padding: 14px 16px;
    border-radius: 14px;
    background: #ecfeff;
    border: 1px solid #bae6fd;
    color: #075985;
    display: grid;
    gap: 4px;
}

.game-state-box strong {
    color: #0f172a;
}

.game-state-box span {
    font-weight: 700;
}

.promotion-box {
    margin-top: 18px;
    padding: 16px;
    border-radius: 16px;
    background: #fff7ed;
    border: 1px solid #fed7aa;
    display: grid;
    gap: 8px;
}

.promotion-box strong {
    color: #111827;
}

.promotion-box span {
    color: #9a3412;
    font-weight: 650;
}

.promotion-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-top: 6px;
}

.promotion-actions button {
    border: 0;
    border-radius: 12px;
    padding: 10px 12px;
    background: #111827;
    color: #ffffff;
    font-weight: 800;
    cursor: pointer;
}

.promotion-actions button:hover {
    background: #1f2937;
}

.rank-label,
.file-label {
    position: absolute;
    z-index: 2;
    pointer-events: none;
    font-size: 11px;
    font-weight: 900;
    opacity: 0.75;
}

.rank-label {
    top: 5px;
    left: 6px;
}

.file-label {
    right: 6px;
    bottom: 4px;
}

.light-square .rank-label,
.light-square .file-label {
    color: #8b5e3c;
}

.dark-square .rank-label,
.dark-square .file-label {
    color: #f1e5cf;
}

.move-history-box {
    margin-top: 18px;
    padding: 16px;
    border-radius: 16px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    display: grid;
    gap: 10px;
}

.move-history-box strong {
    color: #111827;
}

.move-history-empty {
    color: #64748b;
    font-size: 14px;
}

.move-history-list {
    display: grid;
    gap: 6px;
    max-height: 220px;
    overflow: auto;
    padding-right: 4px;
}

.move-history-item {
    padding: 8px 10px;
    border-radius: 10px;
    background: #f8fafc;
    color: #334155;
    font-size: 14px;
    font-weight: 650;
}

.app-error-box {
    margin-bottom: 18px;
    padding: 14px 16px;
    border-radius: 14px;
    background: #fee2e2;
    border: 1px solid #fecaca;
    color: #991b1b;
    display: grid;
    gap: 4px;
}

.app-error-box strong {
    color: #7f1d1d;
}