:root {
    --bg: #f5f7fa;
    --panel: #ffffff;
    --ink: #172033;
    --muted: #637083;
    --line: #d9e1ea;
    --primary: #0f766e;
    --primary-dark: #115e59;
    --accent: #2563eb;
    --danger: #b42318;
}

* {
    box-sizing: border-box;
}

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

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

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

.sidebar {
    width: 260px;
    background: #102a43;
    color: #fff;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

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

.brand-mark {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: #38bdf8;
    color: #082f49;
    font-weight: 800;
}

.brand small,
.user-card small {
    display: block;
    color: #b7c5d3;
    margin-top: 4px;
}

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

.nav a,
.user-card a {
    color: #dce7f3;
    padding: 10px 12px;
    border-radius: 8px;
}

.nav a.active,
.nav a:hover {
    background: #1f4a68;
    color: #fff;
}

.user-card {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, .18);
}

.content {
    flex: 1;
    padding: 28px;
    overflow-x: hidden;
}

.login-content {
    flex: 1;
    display: grid;
    place-items: center;
    padding: 32px;
    background: linear-gradient(135deg, #e7f7f4, #eef4ff);
}

.login-panel {
    width: min(920px, 100%);
    display: grid;
    grid-template-columns: 1fr 380px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(23, 32, 51, .12);
}

.login-copy {
    padding: 56px;
    background: #0f766e;
    color: #fff;
}

.login-copy p {
    max-width: 430px;
    line-height: 1.6;
}

.login-form {
    padding: 40px;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 22px;
}

.page-header h1,
.login-copy h1,
.panel h2 {
    margin: 0;
}

.eyebrow {
    display: block;
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.login-copy .eyebrow {
    color: #bff4e9;
}

.panel,
.metric-grid article {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.panel {
    padding: 20px;
}

.panel-heading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 14px;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.metric-grid article {
    padding: 20px;
}

.metric-grid span {
    color: var(--muted);
}

.metric-grid strong {
    display: block;
    font-size: 34px;
    margin-top: 8px;
}

.split {
    display: grid;
    grid-template-columns: 420px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.form-grid h2,
.form-grid .full,
.form-grid button {
    grid-column: 1 / -1;
}

label {
    display: grid;
    gap: 6px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
}

input,
select,
textarea {
    width: 100%;
    min-height: 40px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 9px 10px;
    font: inherit;
    color: var(--ink);
    background: #fff;
}

textarea {
    min-height: 82px;
    resize: vertical;
}

.check {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
}

.check input {
    width: auto;
}

button,
.button {
    border: 0;
    border-radius: 8px;
    background: var(--primary);
    color: #fff;
    min-height: 42px;
    padding: 10px 16px;
    font-weight: 700;
    cursor: pointer;
}

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

.button.secondary {
    background: #e8f3f2;
    color: var(--primary-dark);
}

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

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 680px;
}

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

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

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

.status {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 999px;
    background: #e8f3f2;
    color: var(--primary-dark);
    font-size: 13px;
}

.alert {
    margin-bottom: 16px;
    padding: 12px 14px;
    border-radius: 8px;
    background: #e9f8ef;
    color: #17643a;
    border: 1px solid #bde8cc;
}

.alert.error {
    background: #fff0ed;
    color: var(--danger);
    border-color: #f4c5bd;
}

.empty {
    color: var(--muted);
    text-align: center;
}

.hidden {
    display: none;
}

.inline-form {
    margin: 0;
}

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

    .app-shell {
        display: block;
    }

    .sidebar {
        width: 100%;
    }

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

@media (max-width: 620px) {
    .content,
    .login-content,
    .login-copy,
    .login-form {
        padding: 20px;
    }

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