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

:root {
    --primary: #1f4e78;
    --primary-dark: #16395a;
    --danger: #c0392b;
    --text: #2d3436;
    --muted: #7f8c8d;
    --border: #dcdde1;
    --bg: #f5f6fa;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

/* ---------- Navbar ---------- */
.navbar {
    background: #fff;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}
.navbar-inner {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px;
    height: 60px;
    display: flex;
    align-items: center;
    gap: 24px;
}
.brand {
    font-size: 20px;
    font-weight: 800;
    color: var(--text);
    text-decoration: none !important;
    white-space: nowrap;
}
.brand span { color: var(--primary); }
.nav-links { list-style: none; display: flex; gap: 18px; flex: 1; }
.nav-links a {
    color: var(--text);
    font-weight: 500;
    padding: 6px 2px;
}
.nav-links a:hover { color: var(--primary); text-decoration: none; }
.nav-user { display: flex; align-items: center; gap: 8px; }
.nav-name { font-weight: 600; font-size: 14px; }
.nav-logout { color: var(--danger); font-size: 14px; }

/* ---------- Layout ---------- */
.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 24px 20px 40px;
    flex: 1;
}
.footer {
    text-align: center;
    padding: 16px;
    color: var(--muted);
    font-size: 13px;
    border-top: 1px solid var(--border);
    background: #fff;
}

/* ---------- Alert ---------- */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 18px;
    font-size: 14px;
    border: 1px solid transparent;
}
.alert-success { background: #d4edda; color: #155724; border-color: #c3e6cb; }
.alert-error { background: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.alert ul { margin: 6px 0 0 18px; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    padding: 9px 16px;
    border: 1px solid transparent;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background .15s;
    text-decoration: none !important;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: #fff; color: var(--text); border-color: var(--border); }
.btn-secondary:hover { background: #f0f0f0; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #a93226; }
.btn-link { background: transparent; color: var(--primary); }
.btn-sm { padding: 4px 10px; font-size: 13px; border-radius: 5px; }
.btn-block { width: 100%; }

/* ---------- Page head ---------- */
.page-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}
.page-head h2 { font-size: 22px; }
.page-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------- Filter bar ---------- */
.filter-bar {
    display: flex;
    gap: 8px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}
.filter-bar input {
    flex: 1;
    min-width: 220px;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
}

/* ---------- Table ---------- */
.table-wrap { overflow-x: auto; }
.table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    font-size: 14px;
}
.table th {
    text-align: left;
    padding: 10px 12px;
    background: #f1f2f6;
    border-bottom: 2px solid var(--border);
    font-size: 13px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: .3px;
}
.table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}
.table tbody tr:hover { background: #fafbfc; }

.ta-right { text-align: right; }
.ta-center { text-align: center; }
.negative { color: var(--danger); }

/* ---------- Card ---------- */
.card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 18px;
    margin-bottom: 20px;
}
.card h3 {
    font-size: 15px;
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

/* ---------- Forms ---------- */
.form-group { margin-bottom: 14px; }
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--muted);
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}
.items-table input {
    padding: 7px 8px;
    font-size: 13px;
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 4px;
}

.company-select {
    margin-bottom: 8px;
}
.company-custom-input {
    padding: 9px 12px;
    border: 1px dashed var(--border);
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    background: #fbfcfe;
}
.company-custom-input:focus {
    outline: none;
    border-color: var(--primary);
    border-style: solid;
}

.logo-options {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}
.logo-option {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    background: #fff;
    font-size: 14px;
}
.logo-option:has(input:checked) {
    border-color: var(--primary);
    background: #eef4fa;
    font-weight: 600;
}

/* ---------- Empty state ---------- */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    background: #fff;
    border: 1px dashed var(--border);
    border-radius: 8px;
    color: var(--muted);
}
.empty-state p { margin-bottom: 14px; font-size: 16px; }

/* ---------- Login ---------- */
.auth-body {
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #1f4e78 0%, #16395a 100%);
}
.auth-card {
    background: #fff;
    padding: 36px 32px;
    border-radius: 12px;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 20px 40px rgba(0,0,0,.25);
}
.auth-card h1 {
    font-size: 28px;
    text-align: center;
    margin-bottom: 4px;
}
.auth-card h1 span { color: var(--primary); }
.auth-sub {
    text-align: center;
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 22px;
}

/* ---------- Badges ---------- */
.badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: capitalize;
}
.badge-admin { background: #e74c3c; color: #fff; }
.badge-staff { background: var(--primary); color: #fff; }
.badge-viewer { background: #95a5a6; color: #fff; }

/* ---------- Invoice preview ---------- */
.invoice-preview {
    max-width: 820px;
    margin: 0 auto;
}
.preview-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding: 24px;
}
.preview-logo { flex: 0 0 auto; }
.preview-logo:empty { display: none; }
.preview-logo-img {
    max-height: 64px;
    max-width: 180px;
    object-fit: contain;
}
.preview-title { margin-left: auto; text-align: right; }
.preview-header.is-ab .preview-title { margin-left: auto; margin-right: auto; text-align: center; }
.preview-invoice-title {
    font-size: 40px;
    letter-spacing: 2px;
    color: var(--primary);
    line-height: 1.1;
    border-bottom: 4px solid var(--primary);
    display: inline-block;
    padding-bottom: 4px;
    margin-bottom: 6px;
}
.theme-B .preview-invoice-title { color: #5b2a86; border-bottom-color: #5b2a86; }
.theme-AB .preview-invoice-title,
.theme-none .preview-invoice-title { color: #3c3c3c; border-bottom-color: #5a5a5a; }
.theme-B .preview-thanks { color: #5b2a86; }
.theme-B .totals-grand { background: #5b2a86; }
.theme-AB .totals-grand,
.theme-none .totals-grand { background: #3c3c3c; }
.preview-number { font-weight: 600; color: var(--muted); font-size: 14px; }
.preview-company { font-size: 14px; }
.preview-info h3 {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .5px;
    color: var(--muted);
    margin-bottom: 6px;
    border: none;
    padding: 0;
}
.preview-meta p {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 4px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}
.preview-meta p > span:first-child { color: var(--muted); }

.preview-info .grid-2 > div:last-child { text-align: right; }
.preview-info .grid-2 > div:last-child h3 { text-align: left; }

.totals {
    margin-left: auto;
    margin-top: 16px;
    max-width: 340px;
    font-size: 14px;
}
.totals-row {
    display: flex;
    justify-content: space-between;
    padding: 7px 12px;
    border-bottom: 1px solid var(--border);
}
.totals-row span:first-child { color: var(--muted); }
.totals-grand {
    background: var(--primary);
    color: #fff;
    font-weight: 800;
    font-size: 16px;
    border-radius: 6px;
    margin-top: 6px;
    border: none;
}
.totals-grand span:first-child { color: #dbe7f3; }
.preview-thanks {
    text-align: center;
    font-style: italic;
    color: var(--primary);
    font-size: 15px;
    background: #f7fafc;
}

.bank-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}
@media (max-width: 520px) {
    .bank-list { grid-template-columns: 1fr; }
}
.bank-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: #fafbfc;
}
.bank-name {
    font-weight: 700;
    font-size: 14px;
}
.bank-acc {
    font-size: 14px;
    color: var(--muted);
    font-variant-numeric: tabular-nums;
    letter-spacing: .3px;
}