:root {
    --bg: #f4f8fb;
    --card: #ffffff;
    --text: #1f2937;
    --muted: #64748b;
    --primary: #0ea5e9;
    --primary-dark: #0284c7;
    --border: #dbe5ee;
    --danger: #b91c1c;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
}

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

.topbar {
    align-items: center;
    background: #0f172a;
    color: #fff;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: space-between;
    padding: 14px 22px;
}

.brand {
    align-items: center;
    color: #fff;
    display: inline-flex;
    font-size: 22px;
    font-weight: 700;
    gap: 10px;
}

.brand-logo {
    background: #fff;
    border-radius: 8px;
    height: 42px;
    object-fit: contain;
    padding: 3px;
    width: 42px;
}

.nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.nav a {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 999px;
    color: #fff;
    padding: 8px 12px;
}

.container {
    margin: 0 auto;
    max-width: 1180px;
    padding: 22px;
}

h1,
h2 {
    margin: 0 0 16px;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.06);
    margin-bottom: 22px;
    padding: 22px;
}

.narrow {
    margin: 48px auto;
    max-width: 460px;
}

.grid {
    display: grid;
    gap: 16px;
}

.two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stat span {
    color: var(--muted);
    display: block;
    margin-bottom: 8px;
}

.stat strong {
    font-size: 34px;
}

.card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.card-actions .button {
    flex: 1;
    text-align: center;
}

.detail-actions .button {
    min-width: 180px;
}

.form label {
    color: var(--muted);
    display: flex;
    flex-direction: column;
    font-weight: 700;
    gap: 6px;
}

.checkbox-label {
    align-items: center;
    flex-direction: row !important;
    gap: 10px !important;
}

.checkbox-label input {
    width: auto;
}

.inline-form {
    align-items: end;
    border-top: 1px solid var(--border);
    display: grid;
    gap: 12px;
    grid-template-columns: 1fr auto;
    margin-top: 18px;
    padding-top: 18px;
}

.import-form {
    margin-top: 18px;
}

.full {
    grid-column: 1 / -1;
}

input,
select,
textarea {
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text);
    font: inherit;
    padding: 12px;
    width: 100%;
}

textarea {
    min-height: 90px;
}

button,
.button {
    background: var(--primary);
    border: 0;
    border-radius: 12px;
    color: #fff;
    cursor: pointer;
    display: inline-block;
    font: inherit;
    font-weight: 700;
    padding: 12px 18px;
}

button:hover,
.button:hover {
    background: var(--primary-dark);
}

.secondary {
    background: #e0f2fe;
    color: #075985;
    padding: 8px 10px;
}

.flash {
    background: #dcfce7;
    border: 1px solid #86efac;
    border-radius: 12px;
    margin-bottom: 18px;
    padding: 12px;
}

.notice {
    background: #fff7ed;
    border: 1px solid #fdba74;
    border-radius: 12px;
    color: #9a3412;
    font-weight: 700;
    margin: 18px 0;
    padding: 14px;
}

.table-wrap {
    overflow-x: auto;
}

.search-card {
    padding: 16px;
}

.search-form {
    display: flex;
    gap: 10px;
}

.search-form input {
    flex: 1;
}

.detail-grid {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.detail-grid p {
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 14px;
    margin: 0;
    padding: 14px;
}

.detail-grid span {
    color: var(--muted);
    display: block;
    font-size: 14px;
    margin-bottom: 6px;
}

.detail-grid strong {
    display: block;
}

.line-items {
    display: grid;
    gap: 14px;
    margin-bottom: 12px;
}

.line-editor {
    align-items: end;
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 14px;
    display: grid;
    gap: 12px;
    grid-template-columns: 1.2fr 1.6fr 0.7fr 0.8fr 0.7fr auto;
    margin-bottom: 14px;
    padding: 14px;
}

.line-item {
    align-items: end;
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 14px;
    display: grid;
    gap: 12px;
    grid-template-columns: 1.2fr 1.6fr 0.7fr 0.8fr 0.7fr auto;
    padding: 14px;
}

.line-item label {
    min-width: 0;
}

.line-helper-action {
    align-self: end;
}

.line-helper-action .button {
    width: 100%;
}

.quick-item {
    background: #f8fafc;
    border: 1px dashed var(--border);
    border-radius: 14px;
    margin-bottom: 14px;
    padding: 14px;
}

.quick-item summary {
    cursor: pointer;
    font-weight: 700;
}

.quick-item-grid {
    align-items: end;
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-top: 14px;
}

.client-picker {
    align-items: end;
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 14px;
    display: grid;
    gap: 12px;
    grid-template-columns: 1fr auto;
    padding: 14px;
}

.client-picker p {
    color: var(--muted);
    grid-column: 1 / -1;
    margin: 0;
}

table {
    border-collapse: collapse;
    width: 100%;
}

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

th {
    color: var(--muted);
    font-size: 14px;
}

.table-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.document-head {
    display: flex;
    gap: 24px;
    justify-content: space-between;
}

.totals {
    margin-left: auto;
    max-width: 320px;
    text-align: right;
}

.document-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.document-actions form {
    margin: 0;
}

.payment-action {
    display: flex;
    gap: 8px;
}

.payment-action input {
    min-width: 220px;
}

.logo-preview {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 12px;
    max-height: 120px;
    max-width: 260px;
    padding: 8px;
}

.password-toggle {
    margin-top: 6px;
    padding: 8px 10px;
    width: fit-content;
}

@media (max-width: 780px) {
    .two,
    .stats,
    .detail-grid,
    .line-item,
    .line-editor {
        grid-template-columns: 1fr;
    }

    .search-form {
        flex-direction: column;
    }

    .document-actions {
        flex-direction: column;
    }

    .document-actions .button,
    .document-actions button,
    .document-actions form {
        width: 100%;
    }

    .inline-form {
        grid-template-columns: 1fr;
    }

    .client-picker,
    .quick-item-grid {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 14px;
    }
}

@media print {
    .topbar,
    button {
        display: none;
    }

    body {
        background: #fff;
    }

    .container {
        max-width: none;
        padding: 0;
    }

    .card {
        border: 0;
        box-shadow: none;
    }
}