:root {
    --bg-primary: #0a0c10;
    --bg-card: rgba(18, 22, 32, 0.7);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(139, 92, 246, 0.4);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    
    --primary: #8b5cf6;
    --primary-glow: rgba(139, 92, 246, 0.25);
    --primary-hover: #7c3aed;
    
    --success: #10b981;
    --success-glow: rgba(16, 185, 129, 0.2);
    --danger: #ef4444;
    
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    overflow-x: hidden;
    position: relative;
}

/* Background Ambient Orbs */
.background-decor {
    position: absolute;
    width: 100vw;
    height: 100vh;
    top: 0;
    left: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.3;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 80%);
    top: -10%;
    left: -10%;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #3b82f6 0%, transparent 80%);
    bottom: -15%;
    right: -10%;
}

/* Container */
.scanner-container {
    width: 100%;
    max-width: 520px;
    margin: auto;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

/* Header */
.app-header {
    text-align: center;
    margin-bottom: 0.5rem;
    width: 100%;
}

.logo {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #fff 40%, var(--primary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-accent {
    font-weight: 800;
}

.tagline {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* Scanner Card & Frame */
.scanner-card {
    width: 100%;
    background: var(--bg-card);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 1.25rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    position: relative;
    transition: border-color 0.3s ease;
}

.scanner-card:hover {
    border-color: rgba(139, 92, 246, 0.2);
}

.scanner-frame {
    width: 100%;
    aspect-ratio: 1 / 1;
    background: #000;
    border-radius: 18px;
    overflow: hidden;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Custom laser animation */
.laser-line {
    position: absolute;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    box-shadow: 0 0 12px var(--primary), 0 0 20px var(--primary);
    top: 0;
    z-index: 10;
    pointer-events: none;
    animation: scan 3s linear infinite;
    display: none; /* starts when camera starts */
}

.scanner-frame.scanning .laser-line {
    display: block;
}

@keyframes scan {
    0% {
        top: 0%;
    }
    50% {
        top: 99%;
    }
    100% {
        top: 0%;
    }
}

/* Native HTML5 Qrcode Overrides */
#reader {
    width: 100% !important;
    height: 100% !important;
    border: none !important;
}

#reader video {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
}

/* Injected elements by library we want to hide */
#reader img, #reader button, #reader select, #reader span {
    display: none !important;
}

.scanner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #0f1118;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    z-index: 5;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.scanner-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.camera-icon {
    width: 48px;
    height: 48px;
    color: var(--primary);
    opacity: 0.8;
    animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(0.98); }
    50% { opacity: 1; transform: scale(1.02); }
}

/* Status Bar */
.status-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0.5rem 0 0.2rem 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Result Card */
.result-card {
    width: 100%;
    background: rgba(16, 24, 40, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 20px;
    padding: 1.25rem;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5), 0 0 20px rgba(16, 185, 129, 0.1);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    animation: slideUp 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    transform: translateY(10px);
    opacity: 0;
    pointer-events: none;
    position: absolute;
    bottom: -100px; /* Hidden state, will be toggled by JS positioning/opacity */
    display: none;
}

.result-card.active {
    display: flex;
    opacity: 1;
    pointer-events: auto;
    position: relative;
    bottom: 0;
    transform: translateY(0);
}

@keyframes slideUp {
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.35rem 0.75rem;
    border-radius: 100px;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.success-badge {
    background-color: var(--success-glow);
    color: #34d399;
    border: 1px solid rgba(52, 211, 153, 0.2);
}

.cooldown-timer {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.result-body {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.result-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.result-data {
    font-family: var(--font-body);
    font-size: 0.95rem;
    word-break: break-all;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 0.85rem;
    color: var(--text-primary);
    max-height: 120px;
    overflow-y: auto;
}

.result-actions {
    display: flex;
    gap: 0.75rem;
    width: 100%;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.75rem 1.25rem;
    border-radius: 12px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    flex: 1;
    text-decoration: none;
    outline: none;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(139, 92, 246, 0.4);
}

.btn-primary:active {
    transform: translateY(1px);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.08);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.15);
}

.btn-icon {
    width: 16px;
    height: 16px;
}

.hidden {
    display: none !important;
}

/* Controls Panel */
.controls-panel {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 100%;
}

.select-wrapper {
    position: relative;
    width: 100%;
}

.camera-select {
    width: 100%;
    background-color: rgba(15, 18, 28, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    outline: none;
    transition: all 0.2s ease;
}

.camera-select:focus, .camera-select:hover {
    border-color: var(--border-hover);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Custom select arrow */
.select-wrapper::after {
    content: '';
    position: absolute;
    right: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    border: 5px solid transparent;
    border-top-color: var(--text-secondary);
    pointer-events: none;
}

.btn-control {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
    width: 100%;
}

.btn-control:hover {
    background-color: rgba(239, 68, 68, 0.18);
    border-color: rgba(239, 68, 68, 0.35);
}

.btn-control.paused {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border-color: rgba(16, 185, 129, 0.25);
}

.btn-control.paused:hover {
    background-color: rgba(16, 185, 129, 0.18);
    border-color: rgba(16, 185, 129, 0.4);
}

/* Footer */
footer.app-footer {
    padding: 2rem 0;
    font-size: 0.75rem;
    color: #4b5563;
    width: 100%;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.02);
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .scanner-container {
        padding: 1.5rem 1rem;
    }
    
    .logo {
        font-size: 1.8rem;
    }
    
    .scanner-card {
        padding: 1rem;
    }
}