:root {
    --bg: #f6f7f9;
    --surface: #ffffff;
    --surface-strong: #ffffff;
    --ink: #1f2933;
    --muted: #697586;
    --line: #d9dee7;
    --primary: #0f766e;
    --primary-dark: #115e59;
    --accent: #b45309;
    --danger: #b42318;
    --success: #16803c;
    --warning: #b54708;
    --shadow: 0 18px 45px rgba(31, 41, 51, 0.09);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(15, 118, 110, 0.12), transparent 32rem),
        linear-gradient(135deg, #f8fafc, #edf5f2);
    color: var(--ink);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
    color: inherit;
    text-decoration: none;
}

input,
select,
textarea,
button {
    font: inherit;
}

.sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: 260px;
    padding: 24px;
    background: rgba(255, 255, 255, 0.86);
    border-right: 1px solid var(--line);
    backdrop-filter: blur(18px);
    display: flex;
    flex-direction: column;
    gap: 28px;
}

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

.brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 8px;
    display: inline-grid;
    place-items: center;
    background: var(--primary);
    color: #fff;
    font-weight: 800;
}

.brand-mark.big {
    width: 56px;
    height: 56px;
    font-size: 28px;
}

.brand small,
.sidebar-footer,
.empty,
.hint,
.stack-list span,
.metrics span,
.eyebrow {
    color: var(--muted);
}

.sidebar nav {
    display: grid;
    gap: 8px;
}

.sidebar nav a,
.button,
.tabs a {
    border-radius: 8px;
    min-height: 42px;
}

.sidebar nav a {
    padding: 12px 14px;
    color: var(--muted);
}

.sidebar nav a.active,
.sidebar nav a:hover {
    background: #e8f3f1;
    color: var(--primary-dark);
}

.sidebar-footer {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    gap: 16px;
}

.app-main {
    margin-left: 260px;
    padding: 32px;
}

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

.topbar,
.panel-head,
.actions,
.filters,
.row-actions,
.report-filters {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar,
.panel-head {
    justify-content: space-between;
}

h1,
h2,
p {
    margin-top: 0;
}

h1 {
    font-size: clamp(30px, 4vw, 46px);
    line-height: 1.05;
    margin-bottom: 0;
}

h2 {
    font-size: 20px;
    margin-bottom: 18px;
}

.eyebrow {
    margin-bottom: 8px;
    text-transform: uppercase;
    font-weight: 800;
    font-size: 12px;
    letter-spacing: 0;
}

.button {
    border: 1px solid var(--line);
    background: var(--surface-strong);
    color: var(--ink);
    padding: 10px 15px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-weight: 700;
}

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

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

.button.ghost {
    background: transparent;
}

.button.full {
    width: 100%;
}

.metrics {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin: 28px 0;
}

.metrics article,
.panel,
.login-card {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.metrics article {
    padding: 20px;
}

.metrics strong {
    display: block;
    font-size: 36px;
    margin-top: 8px;
}

.grid {
    display: grid;
    gap: 20px;
}

.grid.two {
    grid-template-columns: minmax(0, 1.45fr) minmax(320px, 0.9fr);
}

.panel {
    padding: 22px;
    margin-bottom: 20px;
}

.panel.narrow {
    max-width: 820px;
}

.table-wrap {
    width: 100%;
    overflow-x: auto;
}

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

th,
td {
    padding: 14px 12px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: middle;
    white-space: nowrap;
}

th {
    color: var(--muted);
    font-size: 13px;
    font-weight: 800;
}

.sort-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--muted);
}

.sort-link:hover {
    color: var(--primary-dark);
}

.sort-icon {
    display: inline-grid;
    place-items: center;
    width: 18px;
    height: 18px;
    border-radius: 999px;
    background: #e8f3f1;
    color: var(--primary-dark);
    font-size: 12px;
    line-height: 1;
}

.sort-icon.idle {
    background: #eceff3;
    color: #98a2b3;
}

.badge {
    display: inline-flex;
    border-radius: 999px;
    padding: 5px 10px;
    font-size: 12px;
    font-weight: 800;
}

.badge.success {
    background: #e5f7eb;
    color: var(--success);
}

.badge.warning {
    background: #fff0da;
    color: var(--warning);
}

.badge.danger {
    background: #ffe7e3;
    color: var(--danger);
}

.badge.neutral {
    background: #eceff3;
    color: #475467;
}

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

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

label {
    display: grid;
    gap: 7px;
    color: var(--muted);
    font-weight: 700;
}

.checkline {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--ink);
}

.checkline input {
    width: 18px;
    height: 18px;
}

.inline-check {
    min-height: 42px;
}

input,
select,
textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    color: var(--ink);
    padding: 11px 12px;
    outline-color: var(--primary);
}

textarea {
    resize: vertical;
}

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

.meta-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.meta-grid div {
    display: grid;
    gap: 4px;
    padding: 13px 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
}

.meta-grid span {
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
}

.filters {
    margin-bottom: 18px;
    flex-wrap: wrap;
}

.filters input {
    max-width: 390px;
}

.row-actions {
    justify-content: flex-end;
    min-width: 190px;
}

.row-actions a,
.row-actions button,
.panel-head a {
    border: 0;
    background: none;
    color: var(--primary-dark);
    cursor: pointer;
    font-weight: 800;
    padding: 0;
}

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

.stack-list a {
    display: grid;
    gap: 4px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
}

.stack-list.compact a {
    padding: 12px;
}

.login-card {
    width: min(940px, 100%);
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 34px;
    align-items: center;
    padding: 38px;
}

.login-card h1 {
    margin-top: 18px;
}

.login-card p {
    color: var(--muted);
    font-size: 18px;
    max-width: 490px;
}

.flash {
    margin-bottom: 16px;
    padding: 13px 16px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: #fff;
    font-weight: 700;
}

.flash.success {
    border-color: #a6e9b8;
    color: var(--success);
}

.flash.error {
    border-color: #ffb4a8;
    color: var(--danger);
}

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

.tabs a {
    display: inline-flex;
    align-items: center;
    padding: 9px 12px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--muted);
    font-weight: 800;
}

.tabs a.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.report-filters label {
    grid-template-columns: auto 120px;
    align-items: center;
}

.client-search select {
    min-width: min(100%, 420px);
}

.client-search input {
    min-width: min(100%, 360px);
}

.client-summary {
    display: grid;
    grid-template-columns: minmax(240px, 1.6fr) repeat(5, minmax(100px, 1fr));
    gap: 12px;
    margin: 8px 0 18px;
}

.client-summary > div {
    display: grid;
    gap: 4px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
}

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

.client-summary strong {
    font-size: 18px;
}

@media (max-width: 960px) {
    .sidebar {
        position: static;
        width: auto;
        min-height: auto;
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }

    .sidebar nav {
        grid-template-columns: repeat(5, minmax(0, 1fr));
    }

    .sidebar-footer {
        margin-top: 0;
    }

    .app-main {
        margin-left: 0;
        padding: 22px;
    }

    .metrics,
    .grid.two,
    .client-summary,
    .login-card {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .sidebar {
        padding: 18px;
    }

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

    .topbar,
    .panel-head {
        align-items: flex-start;
        flex-direction: column;
    }

    .metrics {
        grid-template-columns: 1fr;
    }

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

    .login-card,
    .panel {
        padding: 20px;
    }
}