/* Import Common Design System */
@import url('common.css');

/* ========================================
   FRONTEND SPECIFIC STYLES
   ======================================== */

/* Override container for frontend */
.container {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    min-height: 100vh;
}

/* ========================================
   LOGIN SCREEN
   ======================================== */

.login-screen {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.login-container {
    max-width: 400px;
    width: 100%;
    background: var(--bg-tertiary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    border: 2px solid var(--border);
    box-shadow: var(--shadow-lg);
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-header svg {
    filter: drop-shadow(var(--shadow-glow));
    margin-bottom: var(--spacing-md);
}

.login-header h1 {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    transition: border-color var(--transition-base);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-input::placeholder {
    color: var(--text-tertiary);
}

.btn-google-outline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.05);
    color: white;
    padding: 14px 24px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-google-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
}

/* ========================================
   HEADER
   ======================================== */

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
    padding-top: var(--spacing-xl);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.brand-logo {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.store-name {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin: 0;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ========================================
   STATS & BANNERS
   ======================================== */

.csv-stats {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.meta-stats-banner {
    background: linear-gradient(135deg, rgba(3, 165, 245, 0.1) 0%, rgba(99, 102, 241, 0.1) 100%);
    border: 1px solid var(--primary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 500;
    box-shadow: var(--shadow-glow);
    animation: pulse-glow 3s infinite;
}

.admin-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-right: var(--spacing-md);
}

.btn-admin {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.btn-admin:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.store-select {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.85rem;
    cursor: pointer;
    transition: border-color var(--transition-base);
}

.store-select:focus {
    outline: none;
    border-color: var(--primary);
}

.catalog-stats {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ========================================
   MODE TOGGLE
   ======================================== */

.mode-toggle {
    display: flex;
    gap: var(--spacing-sm);
    background: var(--surface);
    padding: var(--spacing-xs);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
}

.mode-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.mode-btn:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

.mode-btn.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    box-shadow: var(--shadow-glow);
}

/* ========================================
   MODE CONTENT
   ======================================== */

.mode-content {
    display: none;
    animation: fadeIn var(--transition-base);
}

.mode-content.active {
    display: block;
}

/* ========================================
   SCANNER
   ======================================== */

.scanner-container {
    position: relative;
    background: var(--bg-tertiary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    border: 2px solid var(--border);
    overflow: hidden;
}

/* Camera Preview */
.camera-preview {
    width: 100%;
    max-width: 600px;
    height: auto;
    border-radius: var(--radius-lg);
    background: var(--bg-secondary);
}

.scan-frame {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 280px;
    height: 180px;
    border: 3px solid var(--primary);
    border-radius: var(--radius-md);
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.5);
}

.scan-frame::before,
.scan-frame::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 3px solid var(--primary);
}

.scan-frame::before {
    top: -3px;
    left: -3px;
    border-right: none;
    border-bottom: none;
}

.scan-frame::after {
    top: -3px;
    right: -3px;
    border-left: none;
    border-bottom: none;
}

.btn-capture {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: 1.1rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-capture:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.btn-capture:active {
    transform: translateY(0) scale(0.98);
}

.scanner-viewport {
    width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: black;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#reader {
    position: relative;
}

#reader video {
    border-radius: var(--radius-lg);
    width: 100% !important;
    height: auto !important;
}

.scanner-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 200px;
    border: 2px solid var(--primary);
    border-radius: var(--radius-md);
    pointer-events: none;
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.5);
}

.scan-line {
    position: absolute;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    animation: scan 2s ease-in-out infinite;
    box-shadow: 0 0 10px var(--primary);
}

@keyframes scan {

    0%,
    100% {
        top: 0;
    }

    50% {
        top: 100%;
    }
}

.scanner-info {
    margin-top: var(--spacing-lg);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.scanner-info p {
    margin: var(--spacing-xs) 0;
}

/* ========================================
   MANUAL INPUT
   ======================================== */

.manual-input-container {
    background: var(--bg-tertiary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    border: 2px solid var(--border);
}

.manual-textarea {
    width: 100%;
    min-height: 200px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    color: var(--text-primary);
    font-family: 'Inter', monospace;
    font-size: 0.95rem;
    resize: vertical;
    margin-bottom: var(--spacing-md);
    transition: border-color var(--transition-base);
}

.manual-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.manual-textarea::placeholder {
    color: var(--text-tertiary);
}

/* ========================================
   EAN LIST
   ======================================== */

.ean-list-section {
    background: var(--bg-tertiary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    border: 2px solid var(--border);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

#ean-count {
    color: var(--primary);
}

.ean-list {
    max-height: 400px;
    overflow-y: auto;
}

.ean-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: transparent;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    border: 1px solid var(--border-light);
    animation: slideIn var(--transition-base);
    gap: var(--spacing-md);
}

.ean-item:hover {
    background: rgba(99, 102, 241, 0.05);
    border-color: var(--primary);
}

.ean-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    min-width: 0;
}

.ean-code {
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-light);
}

.ean-name {
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ean-name.loading {
    color: var(--text-tertiary);
    font-style: italic;
    opacity: 0.7;
}

.remove-btn {
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.remove-btn:hover {
    background: var(--danger);
    color: white;
}

.empty-state .hint {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* ========================================
   ACTION SECTION
   ======================================== */

.action-section {
    margin-bottom: var(--spacing-xl);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 640px) {
    .container {
        padding: var(--spacing-md);
    }

    .header {
        padding-top: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
    }

    .logo h1 {
        font-size: 1.75rem;
    }

    .mode-btn {
        font-size: 0.85rem;
        padding: var(--spacing-sm);
    }

    .scanner-container,
    .manual-input-container,
    .ean-list-section {
        padding: var(--spacing-md);
    }
}

/* ========================================
   CATALOG SECTION
   ======================================== */

.catalog-section {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.catalog-stats-table {
    margin-bottom: var(--spacing-lg);
}

.catalog-stats-table h3 {
    margin: 0 0 var(--spacing-md) 0;
    color: var(--text-primary);
    font-size: 1.1rem;
}

#channel-stats-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    overflow: hidden;
}

#channel-stats-table thead {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

#channel-stats-table th {
    padding: var(--spacing-md);
    text-align: left;
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

#channel-stats-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
}

#channel-stats-table tbody tr:last-child td {
    border-bottom: none;
}

#channel-stats-table tbody tr:hover {
    background: var(--bg-primary);
}

#channel-stats-table .total-row {
    font-weight: 600;
    background: var(--bg-primary);
    border-top: 2px solid var(--primary);
}

#channel-stats-table .loading-cell {
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
}

.download-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.btn-download {
    flex: 1;
    min-width: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.btn-download:active {
    transform: translateY(0);
}

.btn-download svg {
    flex-shrink: 0;
}

/* ========================================
   CHANNEL SELECTION
   ======================================== */

.channel-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.channel-btn {
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.channel-btn:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.channel-btn:active {
    transform: translateY(-2px);
}

.channel-selector-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.channel-selector-container::before {
    content: '•';
    color: var(--text-secondary);
    font-size: 1.2rem;
}

.store-name-centered {
    text-align: center;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    margin: 1.5rem 0 0 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}