/* QR Scanner Mobile-First Bottom Sheet Modal */

.qr-scanner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
    display: none;
    align-items: flex-end; /* Bottom sheet on mobile */
    justify-content: center;
    z-index: 1050;
    animation: fadeIn 0.2s ease;
}

.qr-scanner-overlay.show {
    display: flex;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.qr-scanner-sheet {
    background: white;
    width: 100%;
    max-height: 95vh;
    border-radius: 20px 20px 0 0;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    animation: slideUp 0.3s cubic-bezier(0.32, 0.72, 0, 1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

/* Desktop: Centered Modal */
@media (min-width: 768px) {
    .qr-scanner-overlay {
        align-items: center;
    }

    .qr-scanner-sheet {
        width: 90%;
        max-width: 600px;
        max-height: 700px;
        border-radius: 16px;
        animation: scaleIn 0.3s cubic-bezier(0.32, 0.72, 0, 1);
    }

    @keyframes scaleIn {
        from {
            transform: scale(0.9);
            opacity: 0;
        }
        to {
            transform: scale(1);
            opacity: 1;
        }
    }
}

/* Header */
.qr-scanner-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    flex-shrink: 0;
}

.qr-scanner-header h5 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.qr-scanner-header .btn-close {
    filter: brightness(0) invert(1);
    opacity: 0.8;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-scanner-header .btn-close:hover {
    opacity: 1;
}

/* Body */
.qr-scanner-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Camera View */
.qr-camera-container {
    position: relative;
    width: 100%;
    background: #000;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

#qr-reader {
    width: 100% !important;
    aspect-ratio: 1;
    border: none !important;
}

/* Subtle scanning hint - positioned at bottom, doesn't block camera */
.qr-scanning-hint {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    backdrop-filter: blur(8px);
    z-index: 10;
    pointer-events: none; /* Doesn't block interactions */
    animation: gentlePulse 3s ease-in-out infinite;
}

.qr-scanning-hint small {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.95);
}

@keyframes gentlePulse {
    0%, 100% {
        opacity: 0.9;
    }
    50% {
        opacity: 0.6;
    }
}

/* Override html5-qrcode default styles */
#qr-reader__dashboard_section {
    display: none !important; /* Hide default controls */
}

#qr-reader video {
    border-radius: 0;
    object-fit: cover;
}

/* Instructions */
.qr-instructions {
    text-align: center;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 12px;
}

.qr-instructions i {
    display: block;
    font-size: 3rem;
    color: #6c757d;
    margin-bottom: 0.75rem;
}

.qr-instructions p {
    margin: 0;
    color: #6c757d;
    font-size: 0.95rem;
}

.qr-instructions.scanning {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    animation: pulse 2s ease-in-out infinite;
}

.qr-instructions.scanning i,
.qr-instructions.scanning p {
    color: white;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* File Upload Alternative */
.qr-upload-alternative {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.qr-upload-alternative label {
    margin: 0;
    width: 100%;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.2s ease;
}

.qr-upload-alternative label:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Error Message */
.qr-error-message {
    background: #f8d7da;
    color: #721c24;
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid #dc3545;
    display: flex;
    align-items: start;
    gap: 0.75rem;
}

.qr-error-message i {
    flex-shrink: 0;
    font-size: 1.25rem;
    margin-top: 0.1rem;
}

.qr-error-message p {
    margin: 0;
    font-size: 0.9rem;
}

/* Success Animation */
.qr-success-message {
    background: #d4edda;
    color: #155724;
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid #28a745;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: fadeIn 0.3s ease;
}

.qr-success-message i {
    font-size: 1.5rem;
}

/* Divider */
.qr-divider {
    display: flex;
    align-items: center;
    text-align: center;
    color: #6c757d;
    font-size: 0.85rem;
    margin: 0.5rem 0;
}

.qr-divider::before,
.qr-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid #dee2e6;
}

.qr-divider span {
    padding: 0 1rem;
}

/* Touch-friendly controls for mobile */
@media (max-width: 767px) {
    .qr-scanner-header {
        padding: 1rem;
    }

    .qr-scanner-body {
        padding: 1rem;
    }

    .qr-upload-alternative label {
        min-height: 56px; /* Larger touch target */
        font-size: 1.05rem;
    }
}

/* Loading State */
.qr-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    gap: 1rem;
}

.qr-loading .spinner-border {
    width: 3rem;
    height: 3rem;
}