:root {
    color-scheme: light;
    --clr-bg-page: linear-gradient(135deg, #eef2ff 0%, #f9f0ff 100%);
    --clr-card: #ffffff;
    --clr-surface: #f9fafb;
    --clr-surface-hover: #f3f4f6;
    --clr-border: #e5e7eb;
    --clr-border-muted: #d1d5db;
    --clr-text-primary: #111827;
    --clr-text-secondary: #374151;
    --clr-text-muted: #6b7280;
    --clr-title: #1a1a2e;
    --clr-shadow-card: rgba(0,0,0,0.07);
    --clr-shadow-card-lg: rgba(0,0,0,0.08);
    --clr-tab-bar: #f3f4f6;
    --clr-tab-active: #ffffff;
    --clr-tab-active-text: #4338ca;
    --clr-input-bg: #ffffff;
    --clr-input-bg-alt: #f9fafb;
    --clr-match-locked-bg: #f0fdf4;
    --clr-match-locked-border: #86efac;
    --clr-match-bye-bg: #f5f3ff;
    --clr-match-bye-border: #c4b5fd;
    --clr-dropped-bg: #fffbeb;
    --clr-dropped-border: #fde68a;
    --clr-mode-card-bg: #f9fafb;
    --clr-mode-card-hover-bg: #f5f3ff;
    --clr-accent-text: #4338ca;
    --clr-sync-bar-bg: #f8f9fa;
    --clr-sync-bar-border: #dee2e6;
    --clr-sync-bar-text: #6c757d;

    /* ── Semantic accent colors (buttons, badges, chips, banners) ──────── */
    --clr-danger-bg: #fee2e2;
    --clr-danger-bg-hover: #fecaca;
    --clr-danger-text: #dc2626;
    --clr-danger-border: #fecaca;

    --clr-warning-bg: #fef3c7;
    --clr-warning-bg-hover: #fde68a;
    --clr-warning-text: #92400e;
    --clr-warning-border: #fde68a;

    --clr-success-bg: #dcfce7;
    --clr-success-text: #16a34a;
    --clr-success-border: #86efac;

    --clr-info-bg: #f0fdf4;
    --clr-info-text: #166534;
    --clr-info-border: #86efac;

    --clr-purple-bg: #f3e8ff;
    --clr-purple-text: #7e22ce;

    --clr-indigo-bg: #e0e7ff;
    --clr-indigo-text: #4338ca;

    --clr-gold-bg: #fef3c7;
    --clr-gold-text: #b45309;

    --clr-chip-elite-bg: #fef9c3;

    /* ── Beamer (projector / spectator view) ────────────────────────────── */
    --bm-bg: #f2f3f8;
    --bm-bg-panel: #ffffff;
    --bm-bg-panel-sunken: #f3f4f9;
    --bm-bg-chip: #eef0f8;
    --bm-border: #e1e3ee;
    --bm-border-soft: #e8eaf2;
    --bm-border-strong: #d6d9e6;
    --bm-connector: #c7cbdb;
    --bm-gold-strong: #ca8a04;
    --bm-text: #1a1a2e;
    --bm-text-muted: #666a88;
    --bm-text-faint: #8a8dab;
    --bm-text-ghost: #c7c9db;
    --bm-text-dim: #52566f;
    --bm-shadow-card: rgba(30, 32, 60, 0.08);
}

html[data-theme="dark"] {
    color-scheme: dark;
    --clr-bg-page: linear-gradient(135deg, #0d0d1f 0%, #1a0a2e 100%);
    --clr-card: #1a1a2e;
    --clr-surface: #0f0f1e;
    --clr-surface-hover: #252545;
    --clr-border: #2d2d4e;
    --clr-border-muted: #3d3d5e;
    --clr-text-primary: #eeeeff;
    --clr-text-secondary: #c0c0dd;
    --clr-text-muted: #8888aa;
    --clr-title: #eeeeff;
    --clr-shadow-card: rgba(0,0,0,0.4);
    --clr-shadow-card-lg: rgba(0,0,0,0.5);
    --clr-tab-bar: #0f0f1e;
    --clr-tab-active: #252545;
    --clr-tab-active-text: #818cf8;
    --clr-input-bg: #16162a;
    --clr-input-bg-alt: #0f0f1e;
    --clr-match-locked-bg: #0a1f12;
    --clr-match-locked-border: #22c55e;
    --clr-match-bye-bg: #1a0a2e;
    --clr-match-bye-border: #a855f7;
    --clr-dropped-bg: #2e2408;
    --clr-dropped-border: #92710a;
    --clr-mode-card-bg: #0f0f1e;
    --clr-mode-card-hover-bg: #1a0a2e;
    --clr-accent-text: #818cf8;
    --clr-sync-bar-bg: #0f0f1e;
    --clr-sync-bar-border: #2d2d4e;
    --clr-sync-bar-text: #8888aa;

    /* ── Semantic accent colors (buttons, badges, chips, banners) ──────── */
    --clr-danger-bg: rgba(248,113,113,.16);
    --clr-danger-bg-hover: rgba(248,113,113,.28);
    --clr-danger-text: #f87171;
    --clr-danger-border: rgba(248,113,113,.4);

    --clr-warning-bg: rgba(251,191,36,.16);
    --clr-warning-bg-hover: rgba(251,191,36,.28);
    --clr-warning-text: #fbbf24;
    --clr-warning-border: rgba(251,191,36,.4);

    --clr-success-bg: rgba(34,197,94,.16);
    --clr-success-text: #4ade80;
    --clr-success-border: rgba(34,197,94,.4);

    --clr-info-bg: rgba(34,197,94,.12);
    --clr-info-text: #4ade80;
    --clr-info-border: rgba(34,197,94,.35);

    --clr-purple-bg: rgba(168,85,247,.16);
    --clr-purple-text: #c084fc;

    --clr-indigo-bg: rgba(99,102,241,.2);
    --clr-indigo-text: #a5b4fc;

    --clr-gold-bg: rgba(251,191,36,.18);
    --clr-gold-text: #fcd34d;

    --clr-chip-elite-bg: rgba(251,191,36,.16);

    /* ── Beamer (projector / spectator view) ────────────────────────────── */
    --bm-bg: #07070f;
    --bm-bg-panel: #0f0f1e;
    --bm-bg-panel-sunken: #111120;
    --bm-bg-chip: #16162a;
    --bm-border: #252545;
    --bm-border-soft: #1e1e35;
    --bm-border-strong: #282845;
    --bm-connector: #2c2c52;
    --bm-gold-strong: #92710a;
    --bm-text: #eeeeff;
    --bm-text-muted: #8888aa;
    --bm-text-faint: #55557a;
    --bm-text-ghost: #383855;
    --bm-text-dim: #aaaacc;
    --bm-shadow-card: transparent;
}

html, body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background: var(--clr-bg-page);
}

.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");
    }

/* ── TournamentCreate ────────────────────────────────────────────────── */

.tc-container {
    max-width: 520px;
    margin: 2.5rem auto;
    padding: 2rem;
    background: var(--clr-card);
    border-radius: 12px;
    box-shadow: 0 4px 24px var(--clr-shadow-card-lg);
}

.tc-title {
    margin: 0 0 1.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--clr-title);
    letter-spacing: -0.3px;
}

.tc-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.tc-field {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.tc-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--clr-text-secondary);
}

.tc-input {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 1rem;
    color: var(--clr-text-primary);
    background: var(--clr-input-bg-alt);
    border: 1.5px solid var(--clr-border-muted);
    border-radius: 8px;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
    box-sizing: border-box;
}

.tc-input:focus {
    border-color: #6366f1;
    background: var(--clr-input-bg);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.18);
}

.tc-mode-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.625rem;
}

.tc-mode-card {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding: 0.75rem 0.875rem;
    background: var(--clr-mode-card-bg);
    border: 1.5px solid var(--clr-border-muted);
    border-radius: 10px;
    cursor: pointer;
    text-align: left;
    transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}

.tc-mode-card:hover {
    border-color: #a5b4fc;
    background: var(--clr-mode-card-hover-bg);
}

.tc-mode-card--active {
    border-color: #6366f1;
    background: var(--clr-surface-hover);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.tc-mode-icon { font-size: 1.4rem; line-height: 1; }
.tc-mode-name { font-size: 0.875rem; font-weight: 700; color: var(--clr-title); }
.tc-mode-desc { font-size: 0.75rem; color: var(--clr-text-muted); line-height: 1.35; }

.tc-error { font-size: 0.8125rem; color: var(--clr-danger-text); }

.tc-error--banner {
    margin-top: 0.5rem;
    padding: 0.625rem 0.875rem;
    background: var(--clr-danger-bg);
    border: 1px solid var(--clr-danger-border);
    border-radius: 8px;
}

.tc-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 0.25rem;
}

.tc-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.625rem 1.25rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s, transform 0.1s, opacity 0.15s;
}

.tc-btn:active { transform: scale(0.97); }
.tc-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.tc-btn--primary { background: #6366f1; color: #ffffff; }
.tc-btn--primary:hover:not(:disabled) { background: #4f46e5; }

.tc-btn--secondary { background: var(--clr-tab-bar); color: var(--clr-text-secondary); }
.tc-btn--secondary:hover { background: var(--clr-surface-hover); }

.tc-spinner {
    display: inline-block;
    width: 0.9rem;
    height: 0.9rem;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: tc-spin 0.65s linear infinite;
}

@keyframes tc-spin { to { transform: rotate(360deg); } }

@media (max-width: 520px) {
    .tc-container { margin: 1rem; padding: 1.25rem; }
    .tc-mode-grid { grid-template-columns: 1fr; }
}