:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary: #6b7280;
    --secondary-hover: #4b5563;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #ca8a04;
    --bg: #f8fafc;
    --card: #ffffff;
    --text: #1f2937;
    --border: #e5e7eb;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 24px;
}

header h1 {
    margin: 0 0 12px 0;
    font-size: 1.5rem;
}

header h1 a {
    color: var(--text);
    text-decoration: none;
}

nav {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

nav a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    padding: 6px 10px;
    border-radius: var(--radius);
    transition: background 0.15s;
}

nav a:hover {
    background: #eff6ff;
}

main {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    margin-bottom: 24px;
}

footer {
    text-align: center;
    color: var(--secondary);
    font-size: 0.9rem;
}

.hero {
    text-align: center;
    margin-bottom: 32px;
}

.hero h2 {
    margin: 0 0 8px 0;
}

.hero p {
    color: var(--secondary);
    margin: 0;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.card {
    display: block;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-decoration: none;
    color: var(--text);
    transition: transform 0.15s, box-shadow 0.15s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.card h3 {
    margin: 0 0 8px 0;
    color: var(--primary);
}

.card p {
    margin: 0;
    color: var(--secondary);
    font-size: 0.95rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select,
.form-group file {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    background: #fff;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-group textarea {
    resize: vertical;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

.form-actions {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 24px;
}

.btn {
    display: inline-block;
    padding: 10px 18px;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.15s;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-secondary {
    background: var(--secondary);
    color: #fff;
}

.btn-secondary:hover {
    background: var(--secondary-hover);
}

.hint {
    background: #eff6ff;
    border-left: 4px solid var(--primary);
    padding: 12px 16px;
    border-radius: var(--radius);
    color: #334155;
    margin-bottom: 24px;
}

.hint code {
    background: #dbeafe;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: ui-monospace, monospace;
}

.field-hint {
    margin: 6px 0 0 0;
    font-size: 0.85rem;
    color: var(--secondary);
}

.field-hint code {
    background: #f1f5f9;
    padding: 1px 4px;
    border-radius: 3px;
    font-family: ui-monospace, monospace;
}

.flash-messages {
    margin-bottom: 20px;
}

.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 10px;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border-left: 4px solid var(--danger);
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border-left: 4px solid var(--warning);
}

.alert-info {
    background: #eff6ff;
    color: #1e40af;
    border-left: 4px solid var(--primary);
}

.summary {
    background: #f1f5f9;
    padding: 16px;
    border-radius: var(--radius);
    margin-bottom: 20px;
}

.summary p {
    margin: 4px 0;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 24px;
    font-size: 0.85rem;
    display: block;
    overflow-x: auto;
    white-space: nowrap;
}

.results-table th,
.results-table td {
    border: 1px solid var(--border);
    padding: 8px 10px;
    text-align: left;
    white-space: normal;
    vertical-align: top;
}

.results-table th {
    background: #f1f5f9;
    font-weight: 600;
}

.results-table tr:nth-child(even) {
    background: #fafafa;
}

.code-cell {
    font-family: ui-monospace, monospace;
    word-break: break-all;
    max-width: 300px;
}

.status-ok {
    background: #f0fdf4 !important;
}

.status-error {
    background: #fef2f2 !important;
}

.status-other {
    background: #fffbeb !important;
}

.downloads {
    margin-bottom: 24px;
}

.downloads h3 {
    margin: 0 0 12px 0;
}

.downloads .btn {
    margin-right: 10px;
    margin-bottom: 10px;
}

/* ===== Сканер DataMatrix с камеры ===== */
.btn-camera {
    background: var(--success);
    color: #fff;
}

.btn-camera:hover {
    background: #15803d;
}

.camera-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 16px;
}

.camera-modal-content {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    width: 100%;
    max-width: 420px;
}

.camera-modal-content h3 {
    margin: 0 0 8px 0;
}

.camera-hint {
    margin: 0 0 12px 0;
    font-size: 0.9rem;
    color: var(--secondary);
}

#camera-scanner {
    width: 100%;
    min-height: 260px;
    background: #000;
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 12px;
}

.camera-status {
    margin: 0 0 12px 0;
    font-size: 0.9rem;
    color: var(--secondary);
    min-height: 1.2em;
    word-break: break-all;
}

.camera-status-error {
    color: var(--danger);
}