:root {
    --bg: #edf1f5;
    --sidebar: #0f172a;
    --sidebar-muted: #94a3b8;
    --sidebar-line: rgba(148, 163, 184, 0.18);
    --surface: #ffffff;
    --surface-muted: #f8fafc;
    --surface-strong: #e2e8f0;
    --line: #d8e0ea;
    --text: #0f172a;
    --muted: #64748b;
    --accent: #0b5fff;
    --accent-soft: rgba(11, 95, 255, 0.1);
    --success: #157f3d;
    --success-soft: rgba(21, 127, 61, 0.12);
    --warning: #b45309;
    --warning-soft: rgba(180, 83, 9, 0.12);
    --shadow: 0 18px 40px rgba(15, 23, 42, 0.06);
    --radius: 18px;
    --radius-sm: 12px;
    --font: "IBM Plex Sans", "Aptos", "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
}

body.auth-body {
    display: grid;
    place-items: center;
}

body {
    font-family: var(--font);
    color: var(--text);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.55)),
        linear-gradient(90deg, #eef2f7, #edf1f5);
}

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

.shell {
    display: grid;
    grid-template-columns: 288px 1fr;
    min-height: 100vh;
}

.sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    justify-content: space-between;
    padding: 1.5rem;
    background: linear-gradient(180deg, #0f172a 0%, #111827 100%);
    color: #f8fafc;
}

.sidebar-top {
    display: grid;
    gap: 1.1rem;
}

.brand-lockup {
    display: flex;
    align-items: center;
    gap: 0.9rem;
}

.brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    background: linear-gradient(135deg, #1d4ed8, #0f766e);
    color: #ffffff;
}

.brand-kicker,
.eyebrow,
.scope-label,
.panel-heading span,
.metric-card span,
.topbar-pill span {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.69rem;
}

.brand-kicker,
.sidebar-copy,
.status-block p,
.nav-link small {
    color: var(--sidebar-muted);
}

.sidebar h1,
.topbar h2 {
    margin: 0.2rem 0 0;
    letter-spacing: -0.03em;
}

.sidebar h1 {
    font-size: 1.05rem;
}

.sidebar-copy,
.hero-copy,
.metric-card p,
.data-primary p,
.timeline,
.structure-card p,
.spec-row span {
    color: var(--muted);
}

.sidebar .sidebar-copy,
.sidebar .status-block p {
    color: var(--sidebar-muted);
}

.nav {
    display: grid;
    gap: 0.35rem;
}

.nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.85rem 0.95rem;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    color: #e2e8f0;
    transition: 140ms ease;
}

.nav-link:hover,
.nav-link.is-active {
    background: rgba(148, 163, 184, 0.08);
    border-color: var(--sidebar-line);
}

.nav-link.is-active small {
    color: #cbd5e1;
}

.sidebar-footer {
    display: grid;
    gap: 0.9rem;
}

.status-block {
    padding: 1rem;
    border: 1px solid var(--sidebar-line);
    border-radius: var(--radius);
    background: rgba(15, 23, 42, 0.28);
}

.status-head,
.panel-heading,
.data-row,
.spec-row,
.topbar,
.topbar-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.status-block strong,
.metric-card strong,
.topbar-pill strong {
    color: #f8fafc;
}

.main {
    padding: 1.5rem;
}

.topbar {
    margin-bottom: 1rem;
    padding: 1rem 1.2rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.84);
    box-shadow: var(--shadow);
}

.topbar h2 {
    font-size: 2rem;
}

.topbar-pill,
.action-link,
.metric-card,
.panel {
    border: 1px solid var(--line);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.user-badge {
    padding: 0.72rem 0.9rem;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.user-badge span {
    display: block;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.68rem;
    color: var(--muted);
}

.user-badge strong {
    color: var(--text);
}

.inline-form {
    margin: 0;
}

.ghost-button {
    min-height: 44px;
    padding: 0.8rem 1rem;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--text);
    font: inherit;
    cursor: pointer;
    box-shadow: var(--shadow);
}

.status-select {
    min-height: 42px;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: #fff;
    padding: 0.5rem 0.75rem;
    font: inherit;
    color: var(--text);
}

.topbar-pill {
    padding: 0.75rem 0.9rem;
    border-radius: 999px;
    color: var(--text);
}

.topbar-pill strong {
    color: var(--text);
}

.action-link {
    padding: 0.8rem 1rem;
    border-radius: 999px;
    color: var(--accent);
    font-weight: 600;
}

.flash {
    margin-bottom: 1rem;
    padding: 0.95rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--line);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.flash-success {
    border-color: rgba(21, 127, 61, 0.22);
    background: rgba(21, 127, 61, 0.08);
    color: var(--success);
}

.flash-error {
    border-color: rgba(180, 83, 9, 0.22);
    background: rgba(180, 83, 9, 0.08);
    color: var(--warning);
}

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

.metric-card {
    padding: 1rem 1.1rem;
    border-radius: var(--radius);
}

.metric-card strong {
    display: block;
    margin-top: 0.45rem;
    color: var(--text);
    font-size: 1.85rem;
    letter-spacing: -0.04em;
}

.workspace-grid {
    display: grid;
    grid-template-columns: 1.45fr 0.9fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.workspace-grid.single-column {
    grid-template-columns: 1fr;
}

.workspace-grid.form-layout {
    align-items: start;
}

.panel {
    padding: 1.1rem;
    border-radius: var(--radius);
}

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

.panel-heading {
    margin-bottom: 0.85rem;
}

.panel-heading h3 {
    margin: 0;
    font-size: 1rem;
}

.data-table,
.structure-grid,
.spec-list,
.form-grid {
    display: grid;
    gap: 0.75rem;
}

.data-row,
.structure-card,
.spec-row {
    padding: 0.9rem 1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--surface-muted);
}

.data-row {
    align-items: flex-start;
}

.data-primary strong,
.structure-card strong {
    display: block;
    margin-bottom: 0.35rem;
}

.data-primary p,
.structure-card p,
.metric-card p {
    margin: 0;
    line-height: 1.5;
}

.chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 74px;
    padding: 0.38rem 0.7rem;
    border-radius: 999px;
    font-size: 0.74rem;
    font-weight: 700;
    background: var(--accent-soft);
    color: var(--accent);
}

.chip.is-ok {
    background: var(--success-soft);
    color: var(--success);
}

.chip.is-warning {
    background: var(--warning-soft);
    color: var(--warning);
}

.timeline {
    margin: 0;
    padding-left: 1.1rem;
    display: grid;
    gap: 0.85rem;
    line-height: 1.55;
}

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

.grid-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.grid-table th,
.grid-table td {
    padding: 0.9rem 0.85rem;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
    white-space: nowrap;
}

.grid-table th {
    font-size: 0.76rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    background: #f8fafc;
}

.grid-table td {
    color: var(--text);
}

.form-grid label {
    display: grid;
    gap: 0.45rem;
}

.form-grid label span,
.checkbox span {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--muted);
}

.form-grid input,
.form-grid select,
.form-grid button {
    width: 100%;
    min-height: 44px;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: #fff;
    padding: 0.8rem 0.9rem;
    font: inherit;
    color: var(--text);
}

.form-grid input:disabled,
.form-grid select:disabled,
.form-grid button:disabled {
    cursor: not-allowed;
    opacity: 0.6;
    background: #f8fafc;
}

.form-grid input:focus,
.form-grid select:focus {
    outline: none;
    border-color: rgba(11, 95, 255, 0.45);
    box-shadow: 0 0 0 4px rgba(11, 95, 255, 0.08);
}

.form-grid button {
    border: 0;
    background: linear-gradient(180deg, #0f172a, #1e293b);
    color: #fff;
    font-weight: 700;
    cursor: pointer;
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.checkbox input {
    width: 18px;
    min-height: 18px;
    margin: 0;
}

.inline-note {
    padding: 0.85rem 0.95rem;
    border-radius: 10px;
    border: 1px solid rgba(180, 83, 9, 0.18);
    background: rgba(180, 83, 9, 0.08);
    color: var(--warning);
    font-size: 0.92rem;
}

.auth-shell {
    width: min(100%, 520px);
    padding: 1.5rem;
}

.auth-panel {
    padding: 1.4rem;
    border-radius: 24px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 28px 80px rgba(15, 23, 42, 0.12);
}

.auth-intro {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    margin-bottom: 1rem;
}

.auth-copy {
    margin-bottom: 1rem;
}

.auth-copy h2 {
    margin: 0 0 0.35rem;
    font-size: 1.8rem;
    letter-spacing: -0.03em;
}

.auth-copy p {
    margin: 0;
    color: var(--muted);
    line-height: 1.55;
}

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

.spec-row strong {
    text-align: right;
    color: var(--text);
}

@media (max-width: 1120px) {
    .shell,
    .metrics,
    .workspace-grid,
    .structure-grid,
    .topbar,
    .topbar-actions {
        grid-template-columns: 1fr;
    }

    .shell {
        display: block;
    }

    .sidebar,
    .main {
        padding: 1rem;
    }

    .topbar,
    .status-head,
    .data-row,
    .spec-row,
    .topbar-actions {
        align-items: flex-start;
        flex-direction: column;
    }
}