:root {
    --bg: #eef2f7;
    --bg-soft: #f8fafc;
    --surface: #ffffff;
    --surface-strong: #0f172a;
    --line: #d8e1ec;
    --line-strong: #b8c6d8;
    --text: #172033;
    --muted: #60708a;
    --primary: #0f766e;
    --primary-strong: #115e59;
    --danger: #b91c1c;
    --danger-soft: #fef2f2;
    --success: #15803d;
    --success-soft: #f0fdf4;
    --warning: #b45309;
    --warning-soft: #fffbeb;
    --shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
    --radius: 18px;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    min-height: 100%;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(15, 118, 110, 0.14), transparent 28%),
        linear-gradient(180deg, #f8fbff 0%, var(--bg) 100%);
}

body {
    line-height: 1.5;
}

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

code {
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.92em;
}

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

.sidebar {
    width: 280px;
    padding: 28px 22px;
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    color: #e2e8f0;
    display: flex;
    flex-direction: column;
    gap: 28px;
    position: sticky;
    top: 0;
    min-height: 100vh;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

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

.brand span {
    color: #94a3b8;
    font-size: 0.94rem;
}

.brand-mark {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, #14b8a6, #0f766e);
    font-weight: 700;
    letter-spacing: 0.08em;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sidebar-link {
    padding: 12px 14px;
    border-radius: 14px;
    color: #cbd5e1;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.sidebar-link:hover,
.sidebar-link.is-active {
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
    transform: translateX(2px);
}

.sidebar-logout {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid rgba(148, 163, 184, 0.18);
}

.content {
    flex: 1;
    padding: 36px;
}

.content-auth {
    display: grid;
    place-items: center;
    padding: 32px;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 24px;
}

.page-header h1,
.auth-card h1 {
    margin: 8px 0 10px;
    font-size: clamp(1.9rem, 2.7vw, 2.5rem);
    line-height: 1.1;
}

.page-header p,
.auth-card p,
.muted {
    margin: 0;
    color: var(--muted);
}

.page-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.summary-grid,
.grid-2 {
    display: grid;
    gap: 20px;
}

.summary-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-bottom: 24px;
}

.summary-card,
.panel,
.auth-card {
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(216, 225, 236, 0.85);
    box-shadow: var(--shadow);
    border-radius: var(--radius);
}

.summary-card {
    padding: 22px;
}

.summary-card span {
    display: block;
    color: var(--muted);
    margin-bottom: 12px;
}

.summary-card strong {
    font-size: 2rem;
}

.panel {
    padding: 24px;
    margin-bottom: 24px;
}

.panel-danger {
    border-color: rgba(185, 28, 28, 0.18);
}

.panel-heading {
    margin-bottom: 18px;
}

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

.table-wrap {
    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: top;
}

th {
    color: var(--muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

tbody tr:last-child td {
    border-bottom: none;
}

.row-overdue {
    background: rgba(255, 251, 235, 0.75);
}

.cell-note,
.helper-text {
    display: block;
    margin-top: 4px;
    color: var(--muted);
    font-size: 0.88rem;
}

.credential-preview {
    margin-top: 10px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: rgba(248, 250, 252, 0.9);
    overflow: hidden;
}

.credential-preview summary {
    cursor: pointer;
    list-style: none;
    padding: 10px 12px;
    font-weight: 600;
    color: var(--text);
}

.credential-preview summary::-webkit-details-marker {
    display: none;
}

.credential-preview__body {
    padding: 0 12px 12px;
}

.credential-preview__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 8px;
}

.credential-preview__label {
    color: var(--muted);
    font-size: 0.84rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.credential-preview code {
    word-break: break-all;
}

.text-danger {
    color: var(--danger);
}

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.88rem;
    font-weight: 600;
}

.status-active {
    background: var(--success-soft);
    color: var(--success);
}

.status-expired {
    background: var(--warning-soft);
    color: var(--warning);
}

.status-blocked {
    background: var(--danger-soft);
    color: var(--danger);
}

.status-neutral {
    background: #e2e8f0;
    color: #334155;
}

.action-row,
.form-actions,
.stack {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.stack {
    flex-direction: column;
}

.inline-form {
    display: inline-flex;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.field span {
    font-weight: 600;
}

.field input,
.field select {
    width: 100%;
    min-height: 46px;
    border: 1px solid var(--line-strong);
    border-radius: 14px;
    padding: 12px 14px;
    background: var(--surface);
    color: var(--text);
    font: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field input:focus,
.field select:focus {
    outline: none;
    border-color: rgba(15, 118, 110, 0.7);
    box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.12);
}

.password-generator {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    gap: 10px;
}

.password-generator .btn {
    white-space: nowrap;
}

.field-readonly .readonly-box {
    min-height: 46px;
    display: flex;
    align-items: center;
    padding: 12px 14px;
    border: 1px dashed var(--line-strong);
    border-radius: 14px;
    background: var(--bg-soft);
    color: var(--muted);
}

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

.form-actions {
    grid-column: 1 / -1;
    margin-top: 8px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 16px;
    border: none;
    border-radius: 14px;
    cursor: pointer;
    font: inherit;
    font-weight: 600;
    transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.14);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-strong));
    color: #ffffff;
}

.btn-secondary {
    background: #e2e8f0;
    color: #0f172a;
}

.btn-success {
    background: linear-gradient(135deg, #16a34a, #15803d);
    color: #ffffff;
}

.btn-danger {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    color: #ffffff;
}

.btn-small {
    min-height: 38px;
    padding: 0 12px;
    font-size: 0.92rem;
}

.btn-full {
    width: 100%;
}

.alert {
    margin-bottom: 18px;
    padding: 14px 16px;
    border-radius: 14px;
    border: 1px solid transparent;
}

.alert-success {
    background: var(--success-soft);
    border-color: rgba(21, 128, 61, 0.15);
    color: var(--success);
}

.alert-error {
    background: var(--danger-soft);
    border-color: rgba(185, 28, 28, 0.15);
    color: var(--danger);
}

.alert-warning {
    background: var(--warning-soft);
    border-color: rgba(180, 83, 9, 0.15);
    color: var(--warning);
}

.alert-info {
    background: #eff6ff;
    border-color: rgba(37, 99, 235, 0.15);
    color: #1d4ed8;
}

.empty-state {
    padding: 24px 6px 8px;
    text-align: center;
}

.empty-state h3 {
    margin: 0 0 8px;
}

.auth-card {
    width: min(480px, 100%);
    padding: 30px;
}

.auth-card-header {
    margin-bottom: 22px;
}

.eyebrow {
    display: inline-block;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(20, 184, 166, 0.12);
    color: var(--primary-strong);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

@media (max-width: 1080px) {
    .summary-grid,
    .grid-2,
    .form-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 880px) {
    .layout-shell {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        min-height: auto;
        position: static;
    }

    .content {
        padding: 24px 18px 40px;
    }

    .summary-grid,
    .grid-2,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .page-header {
        flex-direction: column;
    }

    .password-generator {
        grid-template-columns: 1fr;
    }
}