:root {
    --bg: #f7f8fa;
    --card: #ffffff;
    --text: #1a1d24;
    --muted: #6b7280;
    --border: #e5e7eb;
    --primary: #c8102e;
    --primary-dark: #9e0d24;
    --success: #0f9d58;
    --warning: #f59e0b;
    --error: #dc2626;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

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

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

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 32px;
    background: white;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.brand a { color: var(--text); font-size: 20px; }
.brand .tagline {
    color: var(--muted);
    margin-left: 12px;
    font-size: 13px;
}

nav { display: flex; gap: 16px; align-items: center; }
.user-email { color: var(--muted); font-size: 14px; }
.nav-link {
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    padding: 6px 10px;
    border-radius: 6px;
}
.nav-link:hover { background: var(--bg); text-decoration: none; }

main {
    max-width: 1280px;
    margin: 0 auto;
    padding: 32px;
}

h1 { margin-bottom: 16px; font-size: 28px; }
h2 { margin-bottom: 12px; font-size: 18px; color: var(--muted); font-weight: 600; }

.meta {
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 24px;
}
.meta code {
    background: var(--border);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 12px;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-card.error { border-color: var(--error); }

.stat-label { color: var(--muted); font-size: 13px; text-transform: uppercase; }
.stat-value { font-size: 28px; font-weight: 700; }

.pieces-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.pieces-table th,
.pieces-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.pieces-table th {
    background: #fafbfc;
    font-size: 13px;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.pieces-table tbody tr:hover { background: #fafbfc; }
.pieces-table .amount { font-variant-numeric: tabular-nums; font-weight: 600; }
.pieces-table .empty {
    text-align: center;
    padding: 48px;
    color: var(--muted);
}

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
    text-transform: lowercase;
}

.badge-received { background: #e0e7ff; color: #3730a3; }
.badge-processing { background: #fef3c7; color: #92400e; }
.badge-extracted { background: #fef3c7; color: #92400e; }
.badge-pending_validation { background: #fef3c7; color: #92400e; }
.badge-validated { background: #d1fae5; color: #065f46; }
.badge-pushed_to_bexio { background: #d1fae5; color: #065f46; }
.badge-error { background: #fee2e2; color: #991b1b; }
.badge-rejected { background: #f3f4f6; color: #6b7280; }

.confidence {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}
.conf-high { color: var(--success); }
.conf-med { color: var(--warning); }
.conf-low { color: var(--error); }

.btn-primary, .btn-secondary, .btn-success, .btn-danger {
    display: inline-block;
    padding: 8px 16px;
    border-radius: var(--radius);
    border: none;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: white; color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg); }
.btn-success { background: var(--success); color: white; padding: 12px 24px; font-size: 16px; }
.btn-success:hover { opacity: 0.9; }
.btn-danger { background: var(--error); color: white; }

.breadcrumb { margin-bottom: 16px; }
.breadcrumb a { color: var(--muted); font-size: 14px; }

.split-view {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 16px;
}

.pdf-preview iframe {
    width: 100%;
    height: 720px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: white;
}

.extraction-form .card {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.extraction-form label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 13px;
    font-weight: 500;
    color: var(--muted);
}

.extraction-form .row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
}

.extraction-form input,
.extraction-form select,
.extraction-form textarea {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    color: var(--text);
    background: white;
}

.extraction-form input:focus,
.extraction-form select:focus,
.extraction-form textarea:focus {
    outline: 2px solid var(--primary);
    outline-offset: -1px;
    border-color: var(--primary);
}

.extraction-form .actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 8px;
}

.inline-form {
    margin-top: 16px;
    text-align: center;
}

.danger-zone {
    margin-top: 24px;
    padding: 16px;
    border: 1px dashed var(--error);
    border-radius: var(--radius);
}
.danger-zone summary {
    cursor: pointer;
    color: var(--error);
    font-weight: 500;
}
.danger-zone form {
    margin-top: 12px;
    display: flex;
    gap: 12px;
    align-items: flex-end;
}
.danger-zone label { flex: 1; }

.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 14px;
}
.alert-success { background: #d1fae5; color: #065f46; border: 1px solid #6ee7b7; }
.alert-error { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }

.login-container {
    max-width: 400px;
    margin: 80px auto;
}
.login-container h1 {
    text-align: center;
    margin-bottom: 24px;
}
.login-container form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.login-container label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 13px;
    font-weight: 500;
}
.login-container input {
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
}

footer {
    max-width: 1280px;
    margin: 48px auto 32px;
    padding: 0 32px;
    color: var(--muted);
    font-size: 12px;
    text-align: center;
}

@media (max-width: 900px) {
    .split-view { grid-template-columns: 1fr; }
    .extraction-form .row { grid-template-columns: 1fr; }
    main { padding: 16px; }
}