:root {
    --sidebar-width: 280px;
    --sidebar-collapsed-width: 84px;
    --page-bg: #f5f7fb;
    --surface: #ffffff;
    --surface-soft: #f8fafc;
    --border: #d9e0ea;
    --text: #172033;
    --muted: #667085;
    --primary: #2563eb;
    --primary-soft: #eaf1ff;
    --success: #15803d;
    --success-soft: #e7f8ee;
    --danger: #dc2626;
    --danger-soft: #fee7e7;
    --warning: #b45309;
    --warning-soft: #fff4d6;
    --shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
    --radius: 8px;
}

html[data-theme="dark"] {
    --page-bg: #101624;
    --surface: #151d2c;
    --surface-soft: #1d283a;
    --border: #2d3a4f;
    --text: #edf2f7;
    --muted: #a8b3c7;
    --primary: #60a5fa;
    --primary-soft: rgba(96, 165, 250, 0.16);
    --success-soft: rgba(21, 128, 61, 0.18);
    --danger-soft: rgba(220, 38, 38, 0.16);
    --warning-soft: rgba(180, 83, 9, 0.18);
    --shadow: 0 14px 32px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }

body {
    margin: 0;
    background: var(--page-bg);
    color: var(--text);
    font-family: "Public Sans", Inter, "Segoe UI", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.45;
}

button, input, select, textarea { font: inherit; }
a { color: inherit; }

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

.sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: var(--sidebar-width);
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 20;
    transition: width 180ms ease, transform 180ms ease;
}

.sidebar-header {
    min-height: 76px;
    padding: 18px 22px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border);
}

.brand-mark {
    width: 42px;
    height: 42px;
    border-radius: var(--radius);
    display: grid;
    place-items: center;
    background: var(--primary);
    color: #fff;
    font-weight: 800;
}

.brand-title { font-size: 18px; font-weight: 800; line-height: 1.1; }
.brand-subtitle { color: var(--muted); font-size: 12px; margin-top: 3px; }

.sidebar-menu { padding: 18px 14px; overflow-y: auto; flex: 1; }
.nav-section { color: var(--muted); font-size: 12px; font-weight: 700; padding: 10px 12px; }

.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 42px;
    padding: 10px 12px;
    border-radius: var(--radius);
    color: var(--muted);
    text-decoration: none;
    font-weight: 700;
    transition: background 160ms ease, color 160ms ease;
}

.sidebar-menu a:hover,
.sidebar-menu a.active { background: var(--primary-soft); color: var(--primary); }

.nav-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: 2px solid currentColor;
    flex: 0 0 auto;
}

.sidebar-footer {
    margin: 12px 14px 18px;
    padding: 14px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--surface-soft);
    color: var(--muted);
    font-size: 12px;
}

.sidebar-footer a { color: var(--primary); text-decoration: none; font-weight: 700; }

.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    padding: 22px;
    transition: margin-left 180ms ease;
}

.topbar {
    min-height: 64px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    position: sticky;
    top: 16px;
    z-index: 10;
}

.topbar-left, .topbar-actions { display: flex; align-items: center; gap: 10px; }
.breadcrumb { color: var(--muted); font-size: 12px; margin-bottom: 3px; }
.page-title { margin: 0; color: var(--text); font-size: 22px; line-height: 1.25; font-weight: 800; }
.page-subtitle { color: var(--muted); margin: 6px 0 0; }

.page-header {
    margin: 24px 0 18px;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
}

.icon-btn, .theme-switch {
    border: 1px solid var(--border);
    background: var(--surface-soft);
    color: var(--text);
    border-radius: var(--radius);
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-weight: 700;
}

.theme-switch { gap: 8px; }

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

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    min-height: 126px;
}

.stat-label { color: var(--muted); font-weight: 700; margin: 0 0 12px; }
.stat-value { font-size: 32px; font-weight: 800; margin: 0; }
.stat-note { color: var(--muted); font-size: 12px; margin-top: 10px; }

.content-grid { display: grid; grid-template-columns: 1fr; gap: 18px; margin-top: 18px; }
.account-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-bottom: 18px; }

.card {
    background: var(--surface);
    padding: 20px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    margin-bottom: 18px;
}

.card-title { margin: 0 0 16px; font-size: 16px; font-weight: 800; }

.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 700; color: var(--text); }

.form-control {
    width: 100%;
    min-height: 42px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    background: var(--surface-soft);
    color: var(--text);
    outline: none;
}

.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.table-input { min-width: 136px; max-width: 170px; }
.table-input-lg { min-width: 168px; max-width: 220px; }
.text-area-control { min-height: 84px; resize: vertical; }

.filters-form {
    display: grid;
    grid-template-columns: minmax(220px, 2fr) repeat(5, minmax(140px, 1fr));
    gap: 14px;
    align-items: end;
}

.filters-form .form-group { margin-bottom: 0; }
.filter-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

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

.section-heading .card-title { margin: 0; }

.package-list { display: flex; flex-direction: column; gap: 16px; }
.package-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px;
}
.package-panel-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}
.package-eyebrow { margin: 0 0 6px; color: var(--muted); font-size: 12px; font-weight: 700; }
.package-title { margin: 0 0 10px; font-size: 18px; line-height: 1.3; font-weight: 800; }
.package-token-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: flex-end; }
.package-fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}
.package-field-full { grid-column: 1 / -1; }
.package-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin-top: 14px;
}
.package-actions form { margin: 0; }
.package-actions .btn,
.package-actions a { white-space: nowrap; }

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

.btn {
    min-height: 40px;
    padding: 9px 14px;
    border: 1px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 14px;
    font-weight: 700;
    line-height: 1;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    white-space: nowrap;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-warning { background: var(--warning); color: #fff; }
.btn-muted { background: var(--surface-soft); color: var(--text); border-color: var(--border); }
.btn-ghost { background: transparent; color: var(--primary); border-color: transparent; }
.btn-sm { min-height: 30px; padding: 5px 8px; font-size: 12px; }
.btn:disabled { cursor: not-allowed; opacity: 0.55; }
.btn:hover:not(:disabled) { filter: brightness(0.97); }
.btn:focus-visible, .icon-btn:focus-visible, .theme-switch:focus-visible {
    outline: 3px solid var(--primary-soft);
    outline-offset: 2px;
}

.table-responsive { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 980px; font-size: 13px; }
th, td { padding: 10px 8px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { color: var(--muted); font-size: 12px; font-weight: 800; background: var(--surface-soft); }
tbody tr:hover { background: var(--surface-soft); }

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
}

.status-active { background: var(--success-soft); color: var(--success); }
.status-pending, .status-maint { background: var(--warning-soft); color: var(--warning); }
.status-locked { background: var(--danger-soft); color: var(--danger); }

.inline-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.actions-stack { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.inline-actions form, .actions-stack form { margin: 0; }
.account-reset-form { min-width: 380px; }
.account-table td:first-child strong { display: block; margin-bottom: 4px; }

.code-box {
    display: inline-flex;
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    background: var(--surface-soft);
    border: 1px solid var(--border);
    padding: 7px 9px;
    border-radius: var(--radius);
    color: var(--primary);
}

.code-box-wide {
    max-width: min(420px, 100%);
    white-space: normal;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.secret-cell { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.secret-actions { display: flex; flex-wrap: wrap; gap: 5px; }
.device-cell { display: flex; flex-direction: column; gap: 8px; min-width: 180px; }
.device-entry { display: flex; flex-direction: column; gap: 5px; align-items: flex-start; }
.device-label { color: var(--muted); font-size: 11px; font-weight: 800; text-transform: uppercase; }
.code-box-device { max-width: 260px; }
.muted-text { color: var(--muted); font-size: 12px; }
.empty-state { color: var(--muted); text-align: center; padding: 24px; }
.is-hidden { display: none !important; }

.flash {
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 14px 16px;
    margin: 18px 0;
}
.flash-success { border-left-color: var(--success); }
.flash-error { border-left-color: var(--danger); }
.flash-title { font-weight: 800; margin: 0 0 4px; }
.flash-body { color: var(--muted); margin: 0; }

.login-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}
.login-card { width: min(420px, 100%); }
.login-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
}

body.sidebar-collapsed .sidebar { width: var(--sidebar-collapsed-width); }
body.sidebar-collapsed .main-content { margin-left: var(--sidebar-collapsed-width); }
body.sidebar-collapsed .brand-copy,
body.sidebar-collapsed .nav-section,
body.sidebar-collapsed .sidebar-menu a span:last-child,
body.sidebar-collapsed .sidebar-footer { display: none; }
body.sidebar-collapsed .sidebar-header { justify-content: center; padding-left: 12px; padding-right: 12px; }
body.sidebar-collapsed .sidebar-menu a { justify-content: center; }

@media (max-width: 1100px) {
    .cards-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .filters-form { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
    .sidebar { transform: translateX(-100%); width: var(--sidebar-width); }
    body.sidebar-open .sidebar { transform: translateX(0); }
    body.sidebar-collapsed .sidebar { width: var(--sidebar-width); }
    body.sidebar-collapsed .brand-copy,
    body.sidebar-collapsed .nav-section,
    body.sidebar-collapsed .sidebar-menu a span:last-child,
    body.sidebar-collapsed .sidebar-footer { display: block; }
    body.sidebar-collapsed .sidebar-menu a { justify-content: flex-start; }
    .main-content, body.sidebar-collapsed .main-content { margin-left: 0; }
    .page-header { align-items: flex-start; flex-direction: column; }
    .form-grid { grid-template-columns: 1fr; }
    .account-grid { grid-template-columns: 1fr; }
    .filters-form { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .package-panel-head { flex-direction: column; }
    .package-token-row { justify-content: flex-start; }
    .package-fields { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .main-content { padding: 14px; }
    .topbar { position: static; align-items: flex-start; flex-direction: column; }
    .topbar-actions { flex-wrap: wrap; }
    .cards-grid { grid-template-columns: 1fr; }
    .card { padding: 16px; }
    .filters-form { grid-template-columns: 1fr; }
    .section-heading { align-items: flex-start; flex-direction: column; }
    .package-panel { padding: 14px; }
    .account-reset-form { min-width: 0; }
}