:root {
    --bg: #f7f8fc;
    --surface: #ffffff;
    --surface-soft: #fdfdfd;
    --text: #1f2937;
    --muted: #667085;
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --dark: #111827;
    --border: #e5e7eb;
    --success: #0f9d58;
    --warning: #c0841a;
    --danger: #dc2626;
    --shadow: 0 14px 40px rgba(15, 23, 42, 0.08);
    --radius: 20px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background: var(--bg);
    color: var(--text);
}

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

a:hover {
    text-decoration: underline;
}

img {
    max-width: 100%;
}

.container {
    width: min(1120px, calc(100% - 2rem));
    margin: 0 auto;
}

.page-shell {
    min-height: calc(100vh - 148px);
    padding: 2rem 0 3rem;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(229, 231, 235, 0.9);
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 0;
}

.brand {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--dark);
}

.brand span {
    color: var(--primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.app-shell {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 1rem;
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 0 1rem 0 0;
}

.app-content {
    min-width: 0;
    width: 100%;
}

.app-content .container {
    width: 100%;
    max-width: none;
    margin: 0;
}

.side-nav {
    position: sticky;
    top: 88px;
    align-self: start;
    padding-top: 1.5rem;
    padding-left: 0;
}

.side-nav-card {
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 130px);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0 var(--radius) var(--radius) 0;
    padding: 1rem;
}

.side-nav-links {
    display: grid;
    gap: 0.55rem;
    margin-top: 0.9rem;
}


.side-link {
    display: flex;
    align-items: center;
    padding: 0.8rem 0.9rem;
    border-radius: 12px;
    border: 1px solid transparent;
    background: #f8fafc;
    color: var(--text);
    font-weight: 700;
}

.side-link:hover {
    background: #eef4ff;
    text-decoration: none;
}

.side-link.active {
    background: #e8f0ff;
    border-color: #cfe0ff;
    color: var(--primary-dark);
}

.side-accordion {
    display: grid;
    gap: 0.45rem;
}

.side-link-toggle {
    width: 100%;
    list-style: none;
    cursor: pointer;
    justify-content: space-between;
}

.side-link-toggle::-webkit-details-marker {
    display: none;
}

.side-link-toggle::after {
    content: '▾';
    font-size: 0.85rem;
    transition: transform 0.18s ease;
}

.side-accordion:not([open]) .side-link-toggle::after {
    transform: rotate(-90deg);
}

.side-submenu {
    display: grid;
    gap: 0.45rem;
}

.side-link-sub {
    margin-left: 0.5rem;
    font-size: 0.92rem;
    line-height: 1.2;
    padding-top: 0.72rem;
    padding-bottom: 0.72rem;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
}

.soft-shadow {
    box-shadow: var(--shadow);
}

.hero-grid,
.info-grid,
.stats-grid {
    display: grid;
    gap: 1.25rem;
}

.hero-grid {
    grid-template-columns: 1.3fr 0.9fr;
    align-items: stretch;
}

.info-grid,
.stats-grid {
    grid-template-columns: repeat(3, 1fr);
}

.hero-copy h1,
.section-heading h1,
.welcome-card h1 {
    margin: 0.5rem 0 0.75rem;
    font-size: clamp(2rem, 3vw, 3rem);
    line-height: 1.1;
}

.hero-copy p,
.section-heading p,
.card p,
li {
    color: var(--muted);
    line-height: 1.6;
}

.feature-list {
    margin: 1rem 0 0;
    padding-left: 1rem;
}

.hero-actions,
.helper-links {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 1.25rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    border: none;
    border-radius: 12px;
    padding: 0.85rem 1.1rem;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.btn:hover {
    transform: translateY(-1px);
    text-decoration: none;
}

.btn-sm {
    padding: 0.6rem 0.85rem;
    font-size: 0.92rem;
}

.btn-block {
    width: 100%;
}

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

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

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

.btn-outline {
    background: #fff;
    color: var(--dark);
    border: 1px solid var(--border);
}

.badge {
    display: inline-flex;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    background: #e8f0ff;
    color: var(--primary-dark);
    font-size: 0.85rem;
    font-weight: 700;
}

.badge-dark {
    background: #eef2ff;
    color: #312e81;
}

.auth-shell {
    max-width: 560px;
}

.auth-card {
    margin: 0 auto;
}

.section-heading {
    margin-bottom: 1rem;
}

.form-grid {
    display: grid;
    gap: 1rem;
}

.choice-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

.field-row-two {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

.field-row-three {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
}

.settings-choice-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

.settings-choice-card {
    display: grid;
    gap: 0.7rem;
    padding: 0.95rem 1rem;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: #fff;
}

.settings-choice-card.is-selected {
    border-color: #cfe0ff;
    background: #eef4ff;
}

.settings-choice-head {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    font-weight: 700;
}

.settings-choice-head input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin: 0;
}

.inline-info-label {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
}

.info-tooltip {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 999px;
    background: #e8f0ff;
    color: var(--primary-dark);
    font-size: 0.78rem;
    cursor: help;
}

.info-tooltip__text {
    position: absolute;
    left: 50%;
    bottom: calc(100% + 8px);
    transform: translateX(-50%);
    min-width: 220px;
    max-width: 260px;
    padding: 0.55rem 0.7rem;
    border-radius: 10px;
    background: #111827;
    color: #fff;
    font-size: 0.78rem;
    line-height: 1.35;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.15s ease;
    z-index: 20;
}

.info-tooltip:hover .info-tooltip__text,
.info-tooltip:focus .info-tooltip__text {
    opacity: 1;
    visibility: visible;
}

.form-section-box {
    display: grid;
    gap: 1rem;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: #fbfdff;
}

.form-section-accordion {
    padding: 0;
    overflow: hidden;
}

.form-section-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 1rem;
    cursor: pointer;
    list-style: none;
    font-weight: 700;
}

.form-section-summary::-webkit-details-marker {
    display: none;
}

.form-section-summary::after {
    content: '▾';
    color: var(--muted);
    font-size: 0.95rem;
}

.form-section-accordion:not([open]) .form-section-summary::after {
    content: '▴';
}

.form-section-summary__title {
    font-size: 1rem;
}

.form-section-box__content {
    display: grid;
    gap: 1rem;
    padding: 0 1rem 1rem;
    border-top: 1px solid var(--border);
}

.form-section-box__header {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.form-section-box__header h4 {
    margin: 0;
    font-size: 1rem;
}

.form-section-box__header span {
    color: var(--muted);
    font-size: 0.92rem;
}

.check-option {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.85rem 1rem;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #fff;
    font-weight: 700;
}

.check-option input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin: 0;
}

label {
    display: grid;
    gap: 0.45rem;
    font-weight: 600;
}

input,
select,
textarea {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.9rem 1rem;
    font: inherit;
    background: #fff;
    color: var(--text);
}

input::placeholder,
textarea::placeholder {
    color: #98a2b3;
}

textarea {
    min-height: 110px;
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
    outline: 2px solid rgba(37, 99, 235, 0.18);
    border-color: rgba(37, 99, 235, 0.45);
}

.input-group {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.5rem;
}

.ghost-btn {
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 12px;
    padding: 0.8rem 0.95rem;
    cursor: pointer;
    font-weight: 600;
}

.alert {
    margin: 0.75rem 0 1rem;
    padding: 0.95rem 1rem;
    border-radius: 12px;
    border: 1px solid transparent;
}

.notice-wrap {
    padding-top: 1rem;
}

.alert-success {
    background: #ecfdf3;
    color: #027a48;
    border-color: #abefc6;
}

.alert-error {
    background: #fef3f2;
    color: #b42318;
    border-color: #fecdca;
}

.alert-warning {
    background: #fffaeb;
    color: #b54708;
    border-color: #fedf89;
}

.fade-out {
    opacity: 0.55;
    transition: opacity 0.5s ease;
}

.section-gap {
    margin-top: 1.4rem;
}

.section-gap-sm {
    margin-top: 1rem;
}

.footer {
    border-top: 1px solid var(--border);
    background: #fff;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 0;
    color: var(--muted);
    font-size: 0.95rem;
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.table-header--stacked {
    flex-wrap: wrap;
}

.table-filter-form {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    flex-wrap: wrap;
    margin-left: auto;
}

.table-filter-form input,
.table-filter-form select {
    width: auto;
    min-width: 160px;
}

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

.table-wrap-scroll-y {
    max-height: 420px;
    overflow-y: auto;
}

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

th,
td {
    padding: 0.9rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    color: var(--muted);
    font-size: 0.92rem;
}

.pill {
    display: inline-flex;
    padding: 0.28rem 0.7rem;
    border-radius: 999px;
    background: #f2f4f7;
    font-size: 0.85rem;
}

.big-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--dark);
    margin: 0.2rem 0 0;
}

.admin-accent {
    border-top: 4px solid var(--dark);
}

.admin-accent-light {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
}

.only-text {
    margin-top: 1rem;
}

.page-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    flex-wrap: wrap;
}

.page-toolbar h1,
.page-toolbar h2,
.page-toolbar h3 {
    margin: 0;
}

.content-grid {
    display: grid;
    grid-template-columns: 0.95fr 1.35fr;
    gap: 1.25rem;
}

.product-form-wide,
.customer-form-wide,
.order-form-wide {
    width: 100%;
}

.content-grid-wide {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 1.25rem;
}

.content-grid-wide--single {
    grid-template-columns: minmax(0, 1fr);
}

.muted {
    color: var(--muted);
}

.invoice-summary {
    display: grid;
    gap: 0.7rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.summary-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.summary-row.total {
    font-size: 1.1rem;
    font-weight: 800;
}

.line-total {
    display: inline-flex;
    align-items: center;
    min-height: 48px;
    font-weight: 700;
    color: var(--dark);
}

.invoice-lines {
    display: grid;
    gap: 0.85rem;
}

.invoice-line-row {
    display: grid;
    grid-template-columns: 1.5fr 110px 120px;
    gap: 0.75rem;
    align-items: end;
    padding: 0.85rem;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: #fcfcfd;
}

.invoice-line-row--with-vat {
    grid-template-columns: minmax(0, 1.5fr) 110px max-content 110px 140px 140px;
}

.order-vat-field {
    justify-self: start;
    width: auto;
}

.order-vat-select {
    width: auto;
    min-width: 88px;
    padding-right: 2.2rem;
}

.order-total-field input[readonly] {
    background: #f8fafc;
    color: var(--muted);
    cursor: default;
}

.order-row-hidden {
    display: none;
}

.order-total-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.9rem 1rem;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.order-total-summary__label {
    font-weight: 800;
    color: var(--dark);
}

.order-total-summary__values {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.order-total-summary__values strong {
    color: var(--dark);
}

.pill-primary {
    background: #e8f0ff;
    color: #1d4ed8;
}

.pill-success {
    background: #ecfdf3;
    color: #027a48;
}

.pill-warning {
    background: #fffaeb;
    color: #b54708;
}

.pill-danger {
    background: #fef3f2;
    color: #b42318;
}

.pill-dark {
    background: #eef2ff;
    color: #312e81;
}

.inline-form {
    display: inline-flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.inline-form select,
.inline-form input {
    width: auto;
    min-width: 120px;
}

.table-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.actions-wrap {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.group-search-form {
    display: flex;
    align-items: flex-end;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.group-search-form__search-inline {
    display: flex;
    align-items: flex-end;
    gap: 0.5rem;
    flex: 0 1 34%;
    min-width: 260px;
}

.group-search-form__search-inline .group-search-form__field {
    flex: 1 1 auto;
    min-width: 0;
}

.group-search-form__field {
    flex: 0 1 24%;
    min-width: 160px;
}

.group-search-form__actions {
    align-items: flex-end;
}

.brand-preview,
.brand-panel {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.company-logo,
.logo-placeholder {
    width: 72px;
    height: 72px;
    border-radius: 16px;
    border: 1px solid var(--border);
    object-fit: cover;
    flex-shrink: 0;
}

.logo-placeholder {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #eef2ff;
    color: #312e81;
    font-weight: 800;
    font-size: 1.1rem;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.stack {
    display: grid;
    gap: 0.6rem;
}

.stack h4,
.stack h3 {
    margin: 0;
}

.invoice-paper {
    background: #fff;
}

.invoice-doc {
    padding: 1.75rem;
    background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
}

.invoice-doc-top {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 1rem;
    align-items: start;
}

.invoice-brand-block {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.doc-kicker {
    display: inline-block;
    margin-bottom: 0.35rem;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #1d4ed8;
}

.invoice-doc-title {
    margin: 0;
    font-size: 1.5rem;
}

.invoice-doc-copy {
    margin-bottom: 0;
}

.invoice-title-card,
.invoice-box,
.invoice-note-box {
    border: 1px solid var(--border);
    border-radius: 18px;
    background: #fff;
    padding: 1rem 1.1rem;
}

.invoice-title-card {
    background: linear-gradient(135deg, #f8fbff 0%, #eef4ff 100%);
}

.invoice-doc-number {
    font-size: 1.55rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 0.6rem;
}

.invoice-address-grid,
.invoice-facts-grid {
    display: grid;
    gap: 1rem;
}

.invoice-address-grid {
    grid-template-columns: repeat(2, 1fr);
}

.invoice-facts-grid {
    grid-template-columns: 1.05fr 0.95fr;
}

.invoice-box h4,
.invoice-note-box h4,
.invoice-note-box h3 {
    margin-top: 0;
    margin-bottom: 0.65rem;
}

.invoice-box-soft {
    background: #fcfdff;
}

.invoice-facts-list {
    display: grid;
    gap: 0.6rem;
}

.invoice-total-card {
    border-color: #cfe0ff;
    background: linear-gradient(180deg, #f8fbff 0%, #eef4ff 100%);
}

.invoice-highlight {
    font-size: 1.25rem;
    color: #0f172a;
}

.invoice-table th {
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-size: 0.78rem;
}

.invoice-table td,
.invoice-table th {
    vertical-align: top;
}

.invoice-note-box {
    background: #fbfcff;
}

.print-shell {
    min-height: 100vh;
    padding: 2rem 0 3rem;
    background: var(--bg);
}

.no-print {
    print-color-adjust: exact;
    -webkit-print-color-adjust: exact;
}

@media print {
    .topbar,
    .footer,
    .notice-wrap,
    .no-print {
        display: none !important;
    }

    body,
    .print-shell {
        background: #fff;
    }

    .page-shell,
    .print-shell {
        padding: 0;
    }

    .card,
    .soft-shadow {
        box-shadow: none;
        border-color: #d0d5dd;
    }

    .invoice-doc,
    .invoice-title-card,
    .invoice-box,
    .invoice-note-box {
        background: #fff !important;
    }
}

@media (max-width: 900px) {
    .hero-grid,
    .info-grid,
    .stats-grid,
    .content-grid,
    .content-grid-wide,
    .invoice-line-row,
    .detail-grid,
    .invoice-doc-top,
    .invoice-address-grid,
    .invoice-facts-grid,
    .app-shell,
    .choice-row,
    .field-row-two,
    .settings-choice-grid {
        grid-template-columns: 1fr;
    }

    .side-nav {
        position: static;
        padding-top: 0;
        padding-left: 0;
    }

    .footer-inner,
    .topbar-inner,
    .brand-preview,
    .brand-panel {
        flex-direction: column;
        align-items: flex-start;
    }
}