:root {
    --bg: #f4f6f8;
    --surface: #ffffff;
    --surface-2: #eef2f5;
    --border: #dde4ea;
    --text: #16202a;
    --muted: #687684;
    --primary: #176b57;
    --primary-2: #124f41;
    --accent: #c4973f;
    --danger: #b42318;
}

* {
    box-sizing: border-box;
}

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

.saas-public-page {
    background: #f7f9fb;
}

.saas-public-header,
.saas-admin-header {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 14px 28px;
    border-bottom: 1px solid var(--border);
    background: #ffffff;
}

.saas-admin-header {
    position: sticky;
    top: 0;
    z-index: 20;
}

.saas-public-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--text);
    text-decoration: none;
}

.saas-public-brand small {
    display: block;
    color: var(--muted);
    font-size: 12px;
}

.saas-public-header nav,
.saas-admin-header nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.saas-public-header nav a:not(.btn),
.saas-admin-header nav a:not(.btn) {
    color: var(--text);
    text-decoration: none;
    font-weight: 600;
}

.saas-admin-header nav form {
    margin: 0;
}

.saas-public-main,
.saas-admin-main {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 30px 0;
}

.saas-admin-page {
    background: var(--bg);
}

.saas-admin-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 20px;
}

.saas-admin-title h1 {
    margin: 0;
    font-size: 30px;
}

.saas-admin-title p {
    margin: 8px 0 0;
    color: var(--muted);
}

.saas-admin-actions {
    display: grid;
    gap: 6px;
    min-width: 260px;
}

.saas-admin-actions form {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 0;
}

.saas-admin-actions .form-select,
.saas-admin-actions .form-control {
    min-width: 88px;
}

.saas-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 22px;
    align-items: stretch;
    margin-bottom: 24px;
}

.saas-hero > div:first-child,
.saas-hero-panel,
.saas-note-panel,
.saas-trial-panel,
.saas-price-card,
.saas-demo-card {
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #ffffff;
    box-shadow: 0 8px 24px rgba(17, 28, 34, 0.06);
}

.saas-hero > div:first-child {
    padding: 30px;
}

.saas-kicker {
    display: inline-block;
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.saas-hero h1 {
    max-width: 760px;
    margin: 0;
    font-size: 36px;
    line-height: 1.14;
}

.saas-hero p {
    max-width: 680px;
    margin: 14px 0 0;
    color: var(--muted);
    font-size: 16px;
}

.saas-hero-panel {
    display: grid;
    align-content: center;
    gap: 10px;
    padding: 24px;
}

.saas-hero-panel strong {
    font-size: 20px;
}

.saas-hero-panel span {
    display: block;
    padding: 8px 0;
    border-top: 1px solid var(--border);
    color: var(--muted);
}

.saas-pricing-grid,
.saas-demo-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.saas-demo-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.saas-price-card,
.saas-demo-card,
.saas-trial-panel {
    padding: 22px;
}

.saas-price-card.is-featured {
    border-color: rgba(23, 107, 87, 0.45);
    box-shadow: 0 10px 28px rgba(23, 107, 87, 0.14);
}

.saas-price-card span,
.saas-price-card small {
    display: block;
    color: var(--muted);
}

.saas-price-card strong {
    display: block;
    margin-top: 8px;
    font-size: 30px;
    line-height: 1;
}

.saas-price-card p,
.saas-demo-card p,
.saas-trial-panel p {
    color: var(--muted);
}

.saas-price-card ul {
    min-height: 150px;
    margin: 16px 0;
    padding-left: 18px;
}

.saas-demo-card h2,
.saas-trial-panel h2 {
    font-size: 22px;
    margin-bottom: 10px;
}

.saas-demo-card dl {
    margin: 16px 0;
}

.saas-demo-card dt {
    color: var(--muted);
    font-size: 13px;
}

.saas-demo-card dd {
    margin-bottom: 8px;
    font-weight: 700;
}

.saas-note-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 18px;
    padding: 18px 22px;
}

.saas-note-panel span {
    color: var(--muted);
}

.saas-plan-selector {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin: 18px 0;
}

.saas-plan-selector a {
    display: grid;
    gap: 6px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    text-decoration: none;
    background: #ffffff;
}

.saas-plan-selector a.is-selected {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(23, 107, 87, 0.12);
}

.saas-plan-selector span,
.saas-plan-selector small {
    color: var(--muted);
}

.saas-trial-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin: 18px 0;
}

.saas-trial-form label {
    display: grid;
    gap: 7px;
}

.saas-trial-form label span {
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
}

.saas-trial-form .btn {
    align-self: end;
}

.saas-consent-box {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    margin: 16px 0;
    background: #f9fbfc;
}

.saas-public-footer {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 28px;
    border-top: 1px solid var(--border);
    color: var(--muted);
    background: #ffffff;
}

.app-shell {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    min-height: 100vh;
}

.sidebar {
    background: #111c22;
    color: #ffffff;
    padding: 18px 14px;
}

.brand-block,
.login-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-block {
    padding: 8px 6px 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.brand-block small,
.login-brand small {
    display: block;
    color: var(--muted);
    font-size: 12px;
}

.sidebar .brand-block small {
    color: rgba(255, 255, 255, 0.64);
}

.brand-mark {
    display: inline-grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 8px;
    background: var(--primary);
    color: #ffffff;
    font-weight: 700;
}

.sidebar-nav {
    display: grid;
    gap: 4px;
    padding-top: 16px;
}

.sidebar-nav a,
.sidebar-group summary {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 40px;
    padding: 9px 10px;
    border-radius: 7px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

.sidebar-nav a:hover,
.sidebar-nav a.is-active,
.sidebar-group summary:hover,
.sidebar-group[open] > summary {
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
}

.sidebar-group {
    display: grid;
    gap: 4px;
}

.sidebar-group summary {
    justify-content: space-between;
    cursor: pointer;
    list-style: none;
}

.sidebar-group summary::-webkit-details-marker {
    display: none;
}

.sidebar-group summary > span {
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-group summary > svg:last-child {
    flex: 0 0 auto;
    opacity: 0.7;
    transition: transform 0.16s ease;
}

.sidebar-group[open] summary > svg:last-child {
    transform: rotate(180deg);
}

.sidebar-subnav {
    display: grid;
    gap: 2px;
    padding: 2px 0 6px 16px;
    border-left: 1px solid rgba(255, 255, 255, 0.12);
    margin-left: 18px;
}

.sidebar-subnav a {
    min-height: 34px;
    padding: 7px 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.72);
}

.sidebar-subnav svg {
    width: 16px;
    height: 16px;
}

.sidebar-nav svg,
.icon-button svg,
.panel-header .btn svg,
.quick-actions svg {
    width: 18px;
    height: 18px;
}

.main-panel {
    min-width: 0;
}

.topbar {
    min-height: 76px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 14px 24px;
}

.topbar h1 {
    margin: 2px 0 0;
    font-size: 24px;
    line-height: 1.2;
}

.breadcrumb-line {
    color: var(--muted);
    font-size: 13px;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.icon-button {
    position: relative;
    display: inline-grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text);
}

.notification-count {
    position: absolute;
    top: -6px;
    right: -6px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    border-radius: 999px;
    background: var(--danger);
    color: #ffffff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    line-height: 1;
}

.user-chip {
    min-height: 38px;
    display: flex;
    align-items: center;
    padding: 0 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface-2);
    color: var(--text);
    font-size: 14px;
    text-decoration: none;
}

.user-chip:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.content-area {
    padding: 24px;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.metric-card,
.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.metric-card {
    padding: 18px;
}

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

.metric-card strong {
    display: block;
    margin-top: 8px;
    font-size: 24px;
}

.dashboard-grid,
.foundation-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.panel {
    padding: 18px;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.panel-header h2 {
    margin: 0;
    font-size: 16px;
}

.empty-state,
.module-placeholder {
    min-height: 120px;
    display: grid;
    place-items: center;
    color: var(--muted);
    border: 1px dashed var(--border);
    border-radius: 8px;
    background: #fbfcfd;
    text-align: center;
    padding: 18px;
}

.dashboard-list {
    display: grid;
    gap: 8px;
}

.dashboard-list .empty-state {
    min-height: 92px;
}

.dashboard-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 58px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fbfcfd;
    color: var(--text);
    text-decoration: none;
}

.dashboard-list-item:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.dashboard-list-item span,
.dashboard-list-item small {
    min-width: 0;
}

.dashboard-list-item strong,
.dashboard-list-item small {
    display: block;
}

.dashboard-list-item small {
    margin-top: 3px;
    color: var(--muted);
    font-size: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dashboard-list-item em {
    flex: 0 0 auto;
    font-style: normal;
    color: var(--muted);
    font-size: 12px;
}

.account-summary {
    display: grid;
    gap: 12px;
}

.account-avatar {
    width: 58px;
    height: 58px;
    border-radius: 8px;
    display: grid;
    place-items: center;
    background: var(--primary);
    color: #ffffff;
    font-weight: 700;
    font-size: 24px;
}

.account-summary h3 {
    margin: 0;
    font-size: 20px;
}

.account-summary p {
    margin: -8px 0 0;
    color: var(--muted);
}

.account-summary dl {
    display: grid;
    grid-template-columns: minmax(90px, auto) minmax(0, 1fr);
    gap: 8px 14px;
    margin: 0;
}

.account-summary dt {
    color: var(--muted);
    font-size: 13px;
}

.account-summary dd {
    margin: 0;
    min-width: 0;
}

.maintenance-list {
    display: grid;
    gap: 10px;
}

.maintenance-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fbfcfd;
}

.maintenance-list-item span:first-child {
    min-width: 0;
}

.maintenance-log {
    min-height: 240px;
    max-height: 420px;
    overflow: auto;
    margin: 0;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #101820;
    color: #e6edf3;
    font-size: 12px;
    white-space: pre-wrap;
}

.stack-form,
.employee-form {
    display: grid;
    gap: 14px;
}

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

.employee-form .btn {
    align-self: end;
}

.stack-form label,
.employee-form label {
    display: grid;
    gap: 6px;
    color: var(--muted);
    font-size: 13px;
}

.stack-form input,
.stack-form select,
.employee-form input,
.employee-form select {
    color: var(--text);
}

.data-table {
    margin: 0;
    font-size: 14px;
}

.data-table th {
    color: var(--muted);
    font-weight: 700;
    white-space: nowrap;
}

.data-table td {
    vertical-align: middle;
}

.role-matrix {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.role-permission-card {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px;
    background: #fbfcfd;
}

.role-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.permission-group {
    border-top: 1px solid var(--border);
    padding-top: 10px;
    margin-top: 10px;
}

.permission-group > span {
    display: block;
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 6px;
    text-transform: uppercase;
}

.check-row {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 28px;
    font-size: 14px;
}

.quick-actions {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.quick-actions a {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 58px;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    background: #fbfcfd;
    text-decoration: none;
}

.quick-actions a:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.auth-page {
    min-height: 100vh;
    background: var(--bg);
}

.auth-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-panel {
    width: min(420px, 100%);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 28px;
}

.login-panel h1 {
    margin: 24px 0 18px;
    font-size: 24px;
}

.btn-primary {
    --bs-btn-bg: var(--primary);
    --bs-btn-border-color: var(--primary);
    --bs-btn-hover-bg: var(--primary-2);
    --bs-btn-hover-border-color: var(--primary-2);
}

@media (max-width: 1180px) {
    .metric-grid,
    .employee-form,
    .quick-actions,
    .saas-pricing-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 980px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }

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

    .dashboard-grid,
    .foundation-grid,
    .role-matrix,
    .saas-hero,
    .saas-demo-grid,
    .saas-plan-selector {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 620px) {
    .topbar,
    .saas-public-header,
    .saas-public-footer,
    .saas-note-panel {
        align-items: flex-start;
        flex-direction: column;
    }

    .topbar-actions {
        width: 100%;
        justify-content: space-between;
    }

    .sidebar-nav,
    .metric-grid,
    .employee-form,
    .quick-actions,
    .saas-pricing-grid,
    .saas-trial-form {
        grid-template-columns: 1fr;
    }

    .saas-hero h1 {
        font-size: 28px;
    }

    .content-area {
        padding: 16px;
    }
}