:root {
    --bg-primary: #12131C;
    --bg-surface: rgba(255, 255, 255, 0.05);
    --bg-card: rgba(26, 29, 45, 0.85);
    --accent-color: #4F46E5;
    --accent-hover: #4338CA;
    --success-color: #10B981;
    --success-hover: #059669;
    --warning-color: #F59E0B;
    --error-color: #EF4444;
    --text-primary: #F9FAFB;
    --text-secondary: #9CA3AF;
    --border-color: rgba(255, 255, 255, 0.1);
    --radius-lg: 16px;
    --radius-md: 10px;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    background-image: radial-gradient(circle at 50% 0%, #1E1F36 0%, var(--bg-primary) 75%);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 16px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.app-header {
    text-align: center;
    margin-bottom: 20px;
}

.app-header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.app-header h1 span {
    color: var(--accent-color);
}

.app-header p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.container {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Card glassmorphism */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--text-primary);
}

/* Scanner Styles */
#reader {
    width: 100%;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: #000;
    min-height: 250px;
    position: relative;
}

#reader video {
    border-radius: var(--radius-md);
    object-fit: cover;
}

.controls {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 14px;
}

.select-camera {
    width: 100%;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    cursor: pointer;
}

.select-camera option {
    background: #1A1D2D;
    color: var(--text-primary);
}

.btn-group {
    display: flex;
    gap: 10px;
}

.btn {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn-primary {
    background-color: var(--accent-color);
    color: #FFF;
}
.btn-primary:hover {
    background-color: var(--accent-hover);
}

.btn-success {
    background-color: var(--success-color);
    color: #FFF;
}
.btn-success:hover {
    background-color: var(--success-hover);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}
.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.18);
}

.manual-entry {
    display: flex;
    gap: 8px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.input-code {
    flex: 1;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
}

/* Result Card */
.result-card {
    display: none;
    animation: fadeIn 0.3s ease;
}

.result-card.active {
    display: block;
}

.item-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
    background: rgba(0, 0, 0, 0.2);
    padding: 14px;
    border-radius: var(--radius-md);
}

.detail-item {
    display: flex;
    flex-direction: column;
}

.detail-item.full-width {
    grid-column: span 2;
}

.detail-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.detail-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    word-break: break-word;
}

.detail-value.highlight {
    color: var(--warning-color);
    font-size: 1.1rem;
}

/* Log / History List */
.history-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 200px;
    overflow-y: auto;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.04);
    padding: 10px 12px;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    border-left: 3px solid var(--success-color);
}

.history-item-info {
    display: flex;
    flex-direction: column;
}

.history-item-title {
    font-weight: 600;
    color: var(--text-primary);
}

.history-item-sub {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.history-item-time {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

/* Status Notifications */
.status-msg {
    padding: 10px 14px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    margin-bottom: 12px;
    display: none;
}
.status-msg.error {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid var(--error-color);
    color: #FCA5A5;
    display: block;
}
.status-msg.success {
    background: rgba(16, 185, 129, 0.2);
    border: 1px solid var(--success-color);
    color: #6EE7B7;
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}