/* Preloader */
#preloader {
    position: fixed;
    inset: 0;
    background: transparent; /* прозрачный фон, без белой заливки */
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.4s ease;
}

#preloader.hidden {
    opacity: 0;
    pointer-events: none;
}

#preloader .logo {
    width: 120px;
    animation:
        fadeIn 0.3s ease-out forwards,
        pulse 1.4s ease-in-out infinite 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(1.05); }
    to   { opacity: 1; transform: scale(1.05); }
}

@keyframes pulse {
    0%,100% { transform: scale(1.05); }
    50%     { transform: scale(0.97); }
}

/* Blazor error UI */
#blazor-error-ui {
    background: #EF4444;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0,0,0,.2);
    color: white;
    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;
}

/* QR camera overlay */
.qr-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.qr-overlay video {
    max-width: 400px;
    width: 100%;
    border-radius: 12px;
}

.qr-overlay .close-btn {
    margin-top: 16px;
}

/* Visit read-only mode */
.visit-form-readonly .mud-input {
    background-color: var(--mud-palette-background-grey);
}

.visit-form-readonly .mud-input input,
.visit-form-readonly .mud-input textarea,
.visit-form-readonly .mud-input-adornment,
.visit-form-readonly .mud-select-input,
.visit-form-readonly .mud-picker-input {
    color: var(--mud-palette-text-primary);
    -webkit-text-fill-color: var(--mud-palette-text-primary);
}

.visits-grid td {
    width: max-content;
    max-width: 48ch;
}

.visits-grid th {
    width: max-content;
    white-space: nowrap;
}

.visits-grid-date-range-filter {
    width: max-content;
}