:root {
    --paper: #f5f7f6;
    --surface: #ffffff;
    --ink: #17231f;
    --muted: #66736e;
    --line: #d8e0dc;
    --photovoltaic: #176b52;
    --solar: #d9911b;
    --blueprint: #dceef2;
    --danger: #b23a3a;
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --font-ui: system-ui, -apple-system, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--font-ui);
    font-size: 16px;
    line-height: 1.5;
}

a {
    color: var(--photovoltaic);
    text-decoration-thickness: 1px;
}

a:hover {
    color: #0d4c3a;
}

.app-layout {
    display: flex;
    min-height: 100vh;
}

.app-sidebar {
    width: 240px;
    flex: 0 0 240px;
    background: var(--surface);
    border-right: 1px solid var(--line);
    padding: var(--space-5) var(--space-4);
    flex-direction: column;
}

.app-main {
    flex: 1;
    min-width: 0;
}

.app-container {
    max-width: 1200px;
    padding: var(--space-6) var(--space-5);
    margin: 0 auto;
}

.brand {
    color: var(--ink);
    font-weight: 700;
    letter-spacing: -0.02em;
    text-decoration: none;
}

.brand span,
.btn-primary {
    color: #ffffff;
}

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

.company-context {
    padding-bottom: var(--space-5);
    margin-bottom: var(--space-4);
    border-bottom: 1px solid var(--line);
}

.company-context strong {
    display: block;
    margin-top: var(--space-1);
}

.eyebrow {
    color: var(--muted);
    font-size: 12px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.app-nav {
    display: grid;
    gap: var(--space-1);
}

.nav-item {
    border: 0;
    border-radius: 8px;
    color: var(--muted);
    display: block;
    font-size: 14px;
    font-weight: 600;
    padding: 10px 12px;
    text-decoration: none;
}

.nav-item:hover {
    background: var(--paper);
    color: var(--ink);
}

.nav-item.active {
    background: #e6f2ed;
    color: var(--photovoltaic);
}

.nav-button {
    background: none;
    width: 100%;
    text-align: left;
}

.sidebar-footer {
    margin-top: auto;
    border-top: 1px solid var(--line);
    padding-top: var(--space-4);
}

.user-label {
    font-size: 13px;
    font-weight: 600;
    padding: 0 12px 8px;
}

.mobile-header {
    height: 64px;
    align-items: center;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    padding: 0 var(--space-4);
}

.btn-icon {
    border: 1px solid var(--line);
    font-size: 20px;
    line-height: 1;
}

.app-offcanvas {
    width: 280px !important;
}

.page-header {
    align-items: flex-start;
    display: flex;
    gap: var(--space-4);
    justify-content: space-between;
    margin-bottom: var(--space-6);
}

.page-title {
    font-size: clamp(1.75rem, 3vw, 2rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin: 0;
}

.page-subtitle {
    color: var(--muted);
    margin: 4px 0 0;
}

.panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: var(--space-5);
}

.metric-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    margin-bottom: var(--space-5);
    overflow: hidden;
}

.metric {
    padding: var(--space-5);
    border-right: 1px solid var(--line);
}

.metric:last-child {
    border: 0;
}

.metric-label {
    color: var(--muted);
    font-size: 13px;
    display: block;
}

.metric-value {
    display: block;
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-top: var(--space-1);
    font-variant-numeric: tabular-nums;
}

.content-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr);
    gap: var(--space-5);
}

.panel-header {
    align-items: center;
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}

.panel-title {
    font-size: 18px;
    font-weight: 650;
    margin: 0;
}

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

.table {
    --bs-table-bg: transparent;
    margin: 0;
    vertical-align: middle;
}

.table thead th {
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    color: var(--muted);
    font-size: 12px;
    font-weight: 650;
    padding: 12px 16px;
    white-space: nowrap;
}

.table tbody td {
    border-color: #edf1ef;
    padding: 14px 16px;
}

.table tbody tr {
    height: 56px;
}

.table .amount {
    font-variant-numeric: tabular-nums;
    text-align: right;
    white-space: nowrap;
}

.status-badge {
    border: 1px solid currentColor;
    border-radius: 999px;
    display: inline-block;
    font-size: 12px;
    font-weight: 650;
    padding: 3px 9px;
}

.status-draft {
    background: #eef2f3;
    color: #53646b;
}

.status-issued {
    background: var(--blueprint);
    color: #245d6b;
}

.status-accepted {
    background: #e3f2eb;
    color: #176b52;
}

.status-rejected {
    background: #f9e8e8;
    color: #a32f2f;
}

.empty-state {
    background: var(--surface);
    border: 1px dashed #b9c8c1;
    border-radius: 8px;
    padding: var(--space-7) var(--space-5);
    text-align: center;
}

.empty-state h2 {
    font-size: 20px;
    margin: 0 0 var(--space-2);
}

.empty-state p {
    color: var(--muted);
    margin: 0 auto var(--space-4);
    max-width: 52ch;
}

.btn {
    border-radius: 7px;
    font-size: 14px;
    font-weight: 600;
    padding: 10px 16px;
    transition: background-color 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}

.btn-sm {
    padding: 6px 10px;
}

.btn-primary {
    background: var(--photovoltaic);
    border-color: var(--photovoltaic);
}

.btn-primary:hover,
.btn-primary:focus {
    background: #0d4c3a;
    border-color: #0d4c3a;
    color: #ffffff;
}

.btn-outline-primary {
    color: var(--photovoltaic);
    border-color: var(--photovoltaic);
}

.btn-outline-danger {
    color: var(--danger);
}

.form-label {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
}

.form-control,
.form-select {
    border-color: #bfcac5;
    border-radius: 7px;
    min-height: 44px;
}

.form-control:focus,
.form-select:focus,
.btn:focus-visible,
a:focus-visible {
    box-shadow: 0 0 0 3px rgba(23, 107, 82, 0.22);
    outline: 0;
    border-color: var(--photovoltaic);
}

.form-actions {
    display: flex;
    gap: var(--space-2);
    justify-content: flex-end;
    margin-top: var(--space-5);
}

.form-section {
    border-top: 1px solid var(--line);
    margin-top: var(--space-5);
    padding-top: var(--space-5);
}

.form-section:first-child {
    border-top: 0;
    margin-top: 0;
    padding-top: 0;
}

.form-section-title {
    font-size: 16px;
    font-weight: 650;
    margin-bottom: var(--space-4);
}

.advanced-fields {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 7px;
    padding: var(--space-4);
}

.alert {
    border-radius: 8px;
}

.document-header {
    border-bottom: 1px solid var(--line);
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-5);
}

.document-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(240px, 1fr);
    gap: var(--space-5);
}

.document-items {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
}

.summary-card {
    background: var(--blueprint);
    border: 1px solid #bdd9df;
    border-radius: 8px;
    padding: var(--space-5);
}

.summary-total {
    border-top: 1px solid #bdd9df;
    font-size: 24px;
    font-variant-numeric: tabular-nums;
    margin-top: var(--space-4);
    padding-top: var(--space-4);
}

.technical-data {
    display: grid;
    gap: var(--space-3);
    grid-template-columns: repeat(3, 1fr);
    margin: 0;
}

.technical-data dt {
    color: var(--muted);
    font-size: 12px;
}

.technical-data dd {
    font-weight: 600;
    margin: 0;
}

.technical-data .amount {
    text-align: right;
}

pre {
    white-space: pre-wrap;
    word-break: break-word;
}

.public-shell {
    background: var(--paper);
}

.public-main {
    margin: 0 auto;
    max-width: 480px;
    padding: 8vh var(--space-4);
}

.auth-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: var(--space-6);
}

.grid-pattern {
    background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 24px 24px;
}

@media (max-width: 991.98px) {
    .mobile-header {
        display: flex !important;
    }

    .app-sidebar {
        display: none !important;
    }

    .app-container {
        padding: var(--space-5) var(--space-4);
    }

    .content-grid,
    .document-grid {
        grid-template-columns: 1fr;
    }

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

    .metric:nth-child(2) {
        border-right: 0;
    }

    .metric:nth-child(-n + 2) {
        border-bottom: 1px solid var(--line);
    }

    .page-header {
        margin-bottom: var(--space-5);
    }
}

@media (max-width: 575.98px) {
    .page-header {
        display: block;
    }

    .page-header > .d-flex,
    .page-header > form {
        display: grid !important;
        gap: var(--space-2);
        grid-template-columns: 1fr;
        margin-top: var(--space-4);
        width: 100%;
    }

    .page-header .btn {
        width: 100%;
    }

    .metric {
        padding: var(--space-4);
    }

    .metric-value {
        font-size: 23px;
    }

    .technical-data {
        grid-template-columns: 1fr 1fr;
    }

    .form-actions {
        flex-direction: column-reverse;
    }

    .form-actions .btn {
        width: 100%;
    }

    .table thead {
        display: none;
    }

    .table,
    .table tbody,
    .table tr,
    .table td {
        display: block;
        width: 100%;
    }

    .table tbody tr {
        border-bottom: 1px solid var(--line);
        height: auto;
        padding: 8px 0;
    }

    .table tbody td {
        border: 0;
        display: flex;
        justify-content: space-between;
        gap: 16px;
        padding: 6px 16px;
        text-align: right;
    }

    .table tbody td::before {
        color: var(--muted);
        content: attr(data-label);
        font-size: 12px;
        font-weight: 600;
        text-align: left;
    }

    .table .amount {
        text-align: right;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation: none !important;
        scroll-behavior: auto !important;
        transition: none !important;
    }
}