:root {
    --bg: #f5f2ed;
    --panel: #ffffff;
    --ink: #1f2933;
    --muted: #697586;
    --line: #d9dee7;
    --primary: #0f766e;
    --primary-dark: #115e59;
    --accent: #d97706;
    --danger: #b42318;
    --warning: #b54708;
    --good: #067647;
    --shadow: 0 18px 45px rgba(31, 41, 51, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--ink);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.5;
}

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

h1,
h2,
h3,
p {
    margin-top: 0;
}

input,
select,
button {
    font: inherit;
}

.app-shell {
    position: sticky;
    top: 0;
    z-index: 10;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 24px;
    align-items: center;
    padding: 14px 28px;
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(14px);
}

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

.brand-mark {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border-radius: 8px;
    background: var(--ink);
    color: #fff;
    font-weight: 700;
}

.brand small,
.muted,
.demo-credentials span,
.list-row span {
    color: var(--muted);
}

.brand strong,
.brand small {
    display: block;
}

.nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.nav-links a {
    padding: 9px 12px;
    border-radius: 8px;
    color: var(--ink);
}

.nav-links a:hover {
    background: #eef2f6;
}

.user-menu,
.button-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.page {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 28px 0 48px;
}

.login-layout {
    display: grid;
    grid-template-columns: minmax(300px, 440px) 1fr;
    min-height: calc(100vh - 56px);
    gap: 48px;
    align-items: center;
}

.login-panel,
.login-aside,
.panel,
.metric-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.login-panel {
    padding: 32px;
}

.login-brand {
    margin-bottom: 28px;
}

.login-aside {
    padding: 36px;
}

.stacked-form,
.form-grid {
    display: grid;
    gap: 12px;
}

.stacked-form input,
.form-grid input,
.form-grid select {
    width: 100%;
    min-height: 42px;
    margin-top: 6px;
    padding: 9px 11px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    color: var(--ink);
}

.button {
    display: inline-flex;
    min-height: 40px;
    align-items: center;
    justify-content: center;
    padding: 9px 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    color: var(--ink);
    cursor: pointer;
    font-weight: 700;
}

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

.button.ghost {
    background: transparent;
}

.demo-credentials {
    display: grid;
    gap: 4px;
    margin-top: 24px;
    padding: 14px;
    border-radius: 8px;
    background: #eef7f5;
}

.alert,
.notice {
    padding: 12px 14px;
    border-radius: 8px;
}

.alert {
    background: #fef3f2;
    color: var(--danger);
}

.notice {
    background: #ecfdf3;
    color: var(--good);
}

.check-list {
    display: grid;
    gap: 12px;
    padding-left: 20px;
}

.page-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 22px;
}

.eyebrow {
    margin-bottom: 4px;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0;
    text-transform: uppercase;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.metric-card {
    padding: 18px;
}

.metric-card span,
.metric-card strong {
    display: block;
}

.metric-card strong {
    margin-top: 8px;
    font-size: 2rem;
}

.metric-card.warning {
    border-color: #fedf89;
}

.metric-card.danger {
    border-color: #fecdca;
}

.split-grid,
.card-grid,
.improvement-grid {
    display: grid;
    gap: 18px;
}

.split-grid {
    grid-template-columns: 1.4fr 0.8fr;
    margin-bottom: 18px;
}

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

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

.panel {
    padding: 18px;
}

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

.panel-heading h2 {
    margin-bottom: 0;
    font-size: 1.15rem;
}

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

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
}

th,
td {
    padding: 11px 10px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

th {
    color: var(--muted);
    font-size: 0.82rem;
}

.status,
.pill {
    display: inline-flex;
    min-height: 26px;
    align-items: center;
    padding: 4px 9px;
    border-radius: 999px;
    background: #eef2f6;
    font-size: 0.82rem;
    font-weight: 700;
    white-space: nowrap;
}

.pill.danger {
    background: #fef3f2;
    color: var(--danger);
}

.pill.good {
    background: #ecfdf3;
    color: var(--good);
}

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

.list-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.list-row strong,
.list-row span {
    display: block;
}

.form-panel {
    margin-top: 18px;
}

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

.form-grid .wide {
    grid-column: span 2;
}

.form-grid button {
    align-self: end;
}

.definition-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin: 0 0 18px;
}

.definition-grid dt {
    color: var(--muted);
    font-size: 0.82rem;
}

.definition-grid dd {
    margin: 2px 0 0;
    font-weight: 700;
}

.customer-card h3 {
    margin-top: 18px;
    font-size: 1rem;
}

@media (max-width: 900px) {
    .app-shell,
    .login-layout,
    .split-grid,
    .card-grid,
    .improvement-grid,
    .metric-grid,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .app-shell {
        position: static;
    }

    .form-grid .wide {
        grid-column: auto;
    }
}

@media (max-width: 640px) {
    .page-heading,
    .user-menu,
    .panel-heading,
    .list-row {
        align-items: flex-start;
        flex-direction: column;
    }

    .login-panel,
    .login-aside,
    .panel {
        padding: 16px;
    }
}