/* Recognition UI Styles */
.recognition-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
}

.recognition-status {
    position: absolute;
    top: 20px;
    left: 20px;
    pointer-events: auto;
}

.recognition-result {
    position: absolute;
    top: 60px;
    left: 20px;
    right: 20px;
    pointer-events: auto;
}

.qr-detection-box {
    position: absolute;
    border: 3px solid #4caf50;
    border-radius: 8px;
    background: rgba(76, 175, 80, 0.1);
    animation: qr-pulse 1s infinite;
}

.qr-corners::before,
.qr-corners::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 3px solid #4caf50;
}

.qr-corners::before {
    top: -3px;
    left: -3px;
    border-right: none;
    border-bottom: none;
}

.qr-corners::after {
    bottom: -3px;
    right: -3px;
    border-left: none;
    border-top: none;
}

.ocr-text-region {
    position: absolute;
    border: 2px solid #2196f3;
    background: rgba(33, 150, 243, 0.1);
    border-radius: 4px;
    animation: ocr-highlight 2s infinite;
}

.ocr-text {
    position: absolute;
    bottom: -25px;
    left: 0;
    background: rgba(33, 150, 243, 0.9);
    color: white;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 12px;
    white-space: nowrap;
}

/* Barcode Detection Styles */
.barcode-detection-box {
    position: absolute;
    border-radius: 6px;
    animation: barcode-pulse 1.5s infinite;
}

.barcode-detection-box.barcode-valid {
    border: 3px solid #4caf50;
    background: rgba(76, 175, 80, 0.1);
}

.barcode-detection-box.barcode-invalid {
    border: 3px solid #ff9800;
    background: rgba(255, 152, 0, 0.1);
}

.barcode-corners::before,
.barcode-corners::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
}

.barcode-valid .barcode-corners::before,
.barcode-valid .barcode-corners::after {
    border: 3px solid #4caf50;
}

.barcode-invalid .barcode-corners::before,
.barcode-invalid .barcode-corners::after {
    border: 3px solid #ff9800;
}

.barcode-corners::before {
    top: -3px;
    left: -3px;
    border-right: none;
    border-bottom: none;
}

.barcode-corners::after {
    bottom: -3px;
    right: -3px;
    border-left: none;
    border-top: none;
}

.barcode-format-label {
    position: absolute;
    top: -30px;
    left: 0;
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.7);
}

.barcode-valid .barcode-format-label {
    background: rgba(76, 175, 80, 0.9);
}

.barcode-invalid .barcode-format-label {
    background: rgba(255, 152, 0, 0.9);
}

.auto-filled-field {
    background: linear-gradient(45deg, transparent 49%, rgba(76, 175, 80, 0.1) 50%, transparent 51%);
}

@keyframes qr-pulse {
    0%, 100% { 
        box-shadow: 0 0 0 0 rgba(76, 175, 80, 0.7); 
    }
    50% { 
        box-shadow: 0 0 0 10px rgba(76, 175, 80, 0); 
    }
}

@keyframes ocr-highlight {
    0%, 100% { 
        border-color: #2196f3; 
    }
    50% { 
        border-color: #64b5f6; 
    }
}

@keyframes barcode-pulse {
    0%, 100% { 
        transform: scale(1);
        opacity: 1;
    }
    50% { 
        transform: scale(1.02);
        opacity: 0.8;
    }
}

/* Mobile optimizations */
@media (max-width: 768px) {
    .recognition-status {
        top: 10px;
        left: 10px;
    }
    
    .recognition-result {
        top: 50px;
        left: 10px;
        right: 10px;
    }
    
    .ocr-text {
        font-size: 10px;
        padding: 1px 4px;
    }
    
    .barcode-format-label {
        font-size: 10px;
        padding: 1px 6px;
        top: -25px;
    }
    
    .barcode-corners::before,
    .barcode-corners::after {
        width: 12px;
        height: 12px;
    }
}


/* ─── Scanner Screen Layout ──────────────────────────────────────────────── */

.scanner-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100dvh;
    background: #000;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.scanner-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Dark vignette to improve readability of overlaid UI */
.scanner-vignette {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, transparent 40%, rgba(0,0,0,0.65) 100%);
    pointer-events: none;
    z-index: 1;
}

/* ─── Header ─────────────────────────────────────────────────────────────── */

.scanner-header {
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    padding-top: calc(12px + env(safe-area-inset-top));
    background: linear-gradient(to bottom, rgba(0,0,0,0.75) 0%, transparent 100%);
}

.scanner-back-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    border: none;
    cursor: pointer;
    flex-shrink: 0;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    transition: background 0.2s;
}

.scanner-back-btn:active {
    background: rgba(255,255,255,0.3);
}

.scanner-title-block {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.scanner-title {
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: 0.3px;
}

.scanner-subtitle {
    color: rgba(255,255,255,0.65);
    font-size: 12px;
    line-height: 1.3;
}

.scanner-flip-btn {
    color: white !important;
}

/* ─── Viewfinder Area ────────────────────────────────────────────────────── */

.scanner-viewfinder-area {
    position: relative;
    z-index: 10;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding: 0 24px;
}

.scanner-viewfinder {
    position: relative;
    width: min(72vw, 280px);
    aspect-ratio: 1 / 1;
    overflow: hidden;
}

/* Corner brackets */
.vf-corner {
    position: absolute;
    width: 28px;
    height: 28px;
}

.vf-tl { top: 0; left: 0; border-top: 3px solid; border-left: 3px solid; border-radius: 4px 0 0 0; }
.vf-tr { top: 0; right: 0; border-top: 3px solid; border-right: 3px solid; border-radius: 0 4px 0 0; }
.vf-bl { bottom: 0; left: 0; border-bottom: 3px solid; border-left: 3px solid; border-radius: 0 0 0 4px; }
.vf-br { bottom: 0; right: 0; border-bottom: 3px solid; border-right: 3px solid; border-radius: 0 0 4px 0; }

.viewfinder-active .vf-corner { border-color: #fff; }
.viewfinder-idle .vf-corner { border-color: rgba(255,255,255,0.4); }
.viewfinder-success .vf-corner { border-color: #4caf50; }

/* Scan line */
.scanner-scan-line {
    position: absolute;
    left: 4px;
    right: 4px;
    height: 2px;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.9), transparent);
    animation: scan-sweep 2s ease-in-out infinite;
    border-radius: 1px;
}

@keyframes scan-sweep {
    0%   { top: 8%; opacity: 0; }
    10%  { opacity: 1; }
    90%  { opacity: 1; }
    100% { top: 88%; opacity: 0; }
}

/* Success icon */
.scanner-success-icon {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.35);
    animation: success-pop 0.3s ease-out;
}

@keyframes success-pop {
    from { transform: scale(0.6); opacity: 0; }
    to   { transform: scale(1);   opacity: 1; }
}

/* ─── Mode Badges ────────────────────────────────────────────────────────── */

.scanner-mode-badges {
    display: flex;
    gap: 8px;
}

.scanner-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    transition: all 0.2s;
}

.badge-active {
    background: rgba(255,255,255,0.18);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.35);
    backdrop-filter: blur(4px);
}

.badge-off {
    background: rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.35);
    border: 1px solid rgba(255,255,255,0.1);
}

/* ─── Instruction Text ───────────────────────────────────────────────────── */

.scanner-instruction {
    color: rgba(255,255,255,0.85);
    font-size: 13px;
    text-align: center;
    margin: 0;
    padding: 0 8px;
    text-shadow: 0 1px 4px rgba(0,0,0,0.6);
    line-height: 1.4;
    max-width: 280px;
}

/* ─── Bottom Action Bar ──────────────────────────────────────────────────── */

.scanner-bottom-bar {
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 32px;
    padding-bottom: calc(20px + env(safe-area-inset-bottom));
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 100%);
}

.scanner-toggle-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 12px;
    transition: background 0.2s;
    width: 80px;
}

.scanner-toggle-btn span {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.toggle-on {
    color: #fff;
}

.toggle-off {
    color: rgba(255,255,255,0.4);
}

.scanner-toggle-btn:active {
    background: rgba(255,255,255,0.1);
}

.scanner-capture-btn {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    border: 4px solid #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.15s, background 0.15s;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.scanner-capture-btn:active {
    transform: scale(0.93);
    background: rgba(255,255,255,0.35);
}