:root {
    --bg: #f5f7fb;
    --surface: #ffffff;
    --surface-alt: #f0f3f8;
    --text: #1e293b;
    --muted: #64748b;
    --border: #dbe3ee;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --success: #15803d;
    --danger: #b91c1c;
    --shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
    --radius: 14px;
    --radius-sm: 10px;
    --container: 1180px;
}

* {
    box-sizing: border-box;
}

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

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

a:hover {
    text-decoration: underline;
}

body {
    line-height: 1.5;
}

.ui-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.ui-topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 10px rgba(15, 23, 42, 0.04);
    position: sticky;
    top: 0;
    z-index: 20;
}

.ui-topbar-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.brand-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.brand-title {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
}

.brand-subtitle {
    margin: 2px 0 0 0;
    color: var(--muted);
    font-size: 0.9rem;
}

.nav-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 10px 12px;
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-weight: 600;
    text-align: center;
}

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

.nav-link.primary:hover {
    background: var(--primary-hover);
    text-decoration: none;
}

.nav-link:hover {
    text-decoration: none;
    border-color: #bfd0ea;
}

.nav-form {
    margin: 0;
}

.nav-link-button {
    width: 100%;
    min-height: 42px;
    background: var(--surface-alt);
    border: 1px solid var(--border);
    color: var(--text);
}

.nav-link-button:hover {
    background: #e5eaf2;
}


.page-wrap {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 18px 16px 40px;
    flex: 1;
}

.page-title {
    margin: 0 0 16px 0;
    font-size: 1.6rem;
    line-height: 1.2;
}

.page-lead {
    margin: 0 0 18px 0;
    color: var(--muted);
}

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

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

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

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px;
}

.card h2, .card h3 {
    margin-top: 0;
}

.card + .card {
    margin-top: 0;
}

.stack {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.meta {
    color: var(--muted);
    font-size: 0.95rem;
}

.notice {
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    border: 1px solid var(--border);
    background: #eef4ff;
}

.notice.error {
    color: var(--danger);
    background: #fef2f2;
    border-color: #fecaca;
}

.notice.success {
    color: var(--success);
    background: #f0fdf4;
    border-color: #bbf7d0;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.button, button, input[type="submit"] {
    appearance: none;
    border: 1px solid var(--primary);
    background: var(--primary);
    color: #fff;
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    font-weight: 700;
    cursor: pointer;
}

.button.secondary, button.secondary {
    background: var(--surface-alt);
    color: var(--text);
    border-color: var(--border);
}

.button.danger {
    background: var(--danger);
    border-color: var(--danger);
}

.button:hover, button:hover, input[type="submit"]:hover {
    background: var(--primary-hover);
    text-decoration: none;
}

button.secondary:hover, .button.secondary:hover {
    background: #e5eaf2;
}

.button.danger:hover {
    background: #991b1b;
}

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

.form-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

label {
    font-weight: 700;
    font-size: 0.95rem;
}

input, textarea, select {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 11px 12px;
    font: inherit;
    color: var(--text);
    background: #fff;
}

textarea {
    min-height: 130px;
    resize: vertical;
}

.inline-list {
    margin: 0;
    padding-left: 18px;
    color: var(--muted);
}

.item-list {
    display: grid;
    gap: 14px;
}

.item {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-alt);
    padding: 14px;
}

.item-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0 0 6px 0;
}

.item-divider {
    height: 1px;
    background: var(--border);
    margin: 14px 0 0;
}

.message-list {
    display: grid;
    gap: 12px;
}

.message {
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    background: var(--surface-alt);
    border: 1px solid var(--border);
}

.message-author {
    font-weight: 700;
    margin-bottom: 4px;
}

.footer-note {
    color: var(--muted);
    font-size: 0.9rem;
    text-align: center;
    padding: 18px 16px 28px;
}

.center-card {
    max-width: 560px;
    margin: 28px auto;
}

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

.hero-title {
    margin: 0;
    font-size: 2rem;
    line-height: 1.15;
}

.hero-text {
    margin: 0;
    color: var(--muted);
    font-size: 1rem;
}

@media (min-width: 760px) {
    .ui-topbar-inner {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

    .nav-grid {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }

    .page-wrap {
        padding-top: 28px;
    }

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

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

    .hero {
        grid-template-columns: 1.2fr 0.8fr;
        align-items: center;
    }
}
.nav-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    border-radius: 999px;
    background: #0f172a;
    color: #fff;
    font-size: 0.78rem;
    font-weight: 700;
    margin-left: 6px;
}

.status-chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.status-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    border-radius: 999px;
    background: var(--surface-alt);
    border: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--text);
}

.status-chip.success {
    background: #f0fdf4;
    border-color: #bbf7d0;
    color: var(--success);
}

.status-chip.warning {
    background: #fffbeb;
    border-color: #fde68a;
    color: #b45309;
}

.status-chip.info {
    background: #eff6ff;
    border-color: #bfdbfe;
    color: #1d4ed8;
}

.status-chip.danger {
    background: #fef2f2;
    border-color: #fecaca;
    color: var(--danger);
}

.kpi-value {
    font-size: 2rem;
    font-weight: 800;
    margin: 8px 0 0;
}