:root {
    --ls-bg: #0f1419;
    --ls-surface: #1a2028;
    --ls-surface-2: #232b35;
    --ls-border: #2e3845;
    --ls-text: #e6e9ef;
    --ls-text-dim: #8a93a3;
    --ls-accent: #34d399;
    --ls-accent-hover: #10b981;
    --ls-accent-soft: rgba(52, 211, 153, 0.12);
    --ls-danger: #f87171;
    --ls-warn: #fbbf24;
    --ls-info: #60a5fa;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--ls-bg);
    color: var(--ls-text);
    font-size: 14px;
}

a { color: var(--ls-accent); text-decoration: none; }
a:hover { color: var(--ls-accent-hover); }

h1, h2, h3, h4 { color: var(--ls-text); margin-top: 0; }
h1 { font-size: 1.6rem; font-weight: 600; margin-bottom: 1.5rem; }
h2 { font-size: 1.3rem; font-weight: 600; margin-bottom: 1rem; }
h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.75rem; }

/* ========== Shell layout ========== */
.ls-shell {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
}

.ls-sidebar {
    background: var(--ls-surface);
    border-right: 1px solid var(--ls-border);
    display: flex;
    flex-direction: column;
    padding: 1rem 0;
}

.ls-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1.25rem 1.25rem;
    border-bottom: 1px solid var(--ls-border);
    margin-bottom: 0.75rem;
}
.ls-brand-mark {
    width: 36px; height: 36px;
    background: var(--ls-accent);
    color: var(--ls-bg);
    border-radius: 8px;
    display: grid; place-items: center;
    font-weight: 700;
}
.ls-brand-text strong { display: block; font-size: 0.95rem; }
.ls-brand-text small { color: var(--ls-text-dim); font-size: 0.75rem; }

.ls-nav { flex: 1; padding: 0 0.5rem; }
.ls-nav-item {
    display: flex; align-items: center; gap: 0.7rem;
    padding: 0.55rem 0.75rem;
    margin: 1px 0;
    border-radius: 6px;
    color: var(--ls-text-dim);
    font-size: 0.88rem;
    transition: background-color 0.1s, color 0.1s;
}
.ls-nav-item:hover { background: var(--ls-surface-2); color: var(--ls-text); }
.ls-nav-item.active { background: var(--ls-accent-soft); color: var(--ls-accent); }
.ls-nav-icon { width: 22px; text-align: center; }

.ls-sidebar-foot {
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--ls-border);
}
.ls-user { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.6rem; }
.ls-user-avatar {
    width: 32px; height: 32px;
    border-radius: 50%;
    background: var(--ls-surface-2);
    color: var(--ls-accent);
    display: grid; place-items: center;
    font-weight: 600;
}
.ls-user-meta strong { display: block; font-size: 0.85rem; }
.ls-user-meta small { color: var(--ls-text-dim); font-size: 0.72rem; }
.ls-logout {
    width: 100%; padding: 0.45rem;
    background: transparent;
    border: 1px solid var(--ls-border);
    color: var(--ls-text-dim);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.82rem;
}
.ls-logout:hover { color: var(--ls-danger); border-color: var(--ls-danger); }

.ls-main { overflow-x: auto; }
.ls-content { padding: 2rem 2.5rem; max-width: 1400px; }

/* ========== Blank layout (login) ========== */
.ls-blank {
    min-height: 100vh;
    display: grid;
    place-items: center;
    background: radial-gradient(ellipse at top, #1a2028 0%, var(--ls-bg) 70%);
    padding: 2rem;
}

/* ========== Login card ========== */
.ls-login-card {
    background: var(--ls-surface);
    border: 1px solid var(--ls-border);
    border-radius: 12px;
    padding: 2.5rem;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.ls-login-brand {
    display: flex; align-items: center; gap: 0.75rem; justify-content: center;
    margin-bottom: 2rem;
}
.ls-login-brand .ls-brand-mark { width: 44px; height: 44px; font-size: 1.05rem; border-radius: 10px; }
.ls-login-brand h1 { font-size: 1.25rem; margin: 0; }
.ls-login-brand small { color: var(--ls-text-dim); display: block; }

/* ========== Forms ========== */
.ls-field { margin-bottom: 1rem; }
.ls-label {
    display: block;
    font-size: 0.8rem;
    color: var(--ls-text-dim);
    margin-bottom: 0.35rem;
}
.ls-input {
    width: 100%;
    padding: 0.65rem 0.85rem;
    background: var(--ls-bg);
    border: 1px solid var(--ls-border);
    border-radius: 6px;
    color: var(--ls-text);
    font-size: 0.9rem;
    transition: border-color 0.1s, box-shadow 0.1s;
}
.ls-input:focus { outline: none; border-color: var(--ls-accent); box-shadow: 0 0 0 3px var(--ls-accent-soft); }

/* ========== Buttons ========== */
.ls-btn {
    padding: 0.65rem 1.1rem;
    border-radius: 6px;
    border: 1px solid var(--ls-border);
    background: var(--ls-surface-2);
    color: var(--ls-text);
    cursor: pointer;
    font-size: 0.88rem;
    transition: background-color 0.1s, border-color 0.1s;
}
.ls-btn:hover { background: var(--ls-surface); }
.ls-btn:disabled,
.ls-btn[disabled],
.ls-btn.disabled {
    opacity: 0.45;
    cursor: not-allowed;
    pointer-events: auto;
}
.ls-btn:disabled:hover,
.ls-btn[disabled]:hover,
.ls-btn.disabled:hover {
    background: var(--ls-surface-2);
    color: var(--ls-text);
    border-color: var(--ls-border);
}

/* ========== Custom tooltip (works on disabled buttons too) ==========
   Chrome and Firefox suppress the native `title` tooltip when an
   element is `disabled`. We render our own via a data attribute so
   the explanation is always visible on hover. */
.ls-tooltip {
    position: relative;
    display: inline-flex;
}
.ls-tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: #0b0e13;
    color: var(--ls-text);
    border: 1px solid var(--ls-border);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 500;
    line-height: 1.35;
    white-space: normal;
    width: max-content;
    max-width: 280px;
    text-align: left;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    opacity: 0;
    visibility: hidden;
    transition: opacity 120ms ease, visibility 120ms ease;
    pointer-events: none;
    z-index: 1000;
}
.ls-tooltip::before {
    content: "";
    position: absolute;
    top: calc(100% + 2px);
    right: 14px;
    border: 6px solid transparent;
    border-bottom-color: var(--ls-border);
    opacity: 0;
    visibility: hidden;
    transition: opacity 120ms ease, visibility 120ms ease;
    pointer-events: none;
    z-index: 1000;
}
.ls-tooltip:hover::after,
.ls-tooltip:hover::before {
    opacity: 1;
    visibility: visible;
}
.ls-tooltip[data-tooltip=""]:hover::after,
.ls-tooltip[data-tooltip=""]:hover::before {
    opacity: 0;
    visibility: hidden;
}
.ls-btn-primary {
    background: var(--ls-accent);
    border-color: var(--ls-accent);
    color: var(--ls-bg);
    font-weight: 600;
}
.ls-btn-primary:hover { background: var(--ls-accent-hover); border-color: var(--ls-accent-hover); }
.ls-btn-block { width: 100%; }

/* ========== Alerts ========== */
.ls-alert {
    padding: 0.7rem 0.9rem;
    border-radius: 6px;
    font-size: 0.85rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
}
.ls-alert-error {
    background: rgba(248, 113, 113, 0.1);
    border-color: rgba(248, 113, 113, 0.4);
    color: var(--ls-danger);
}
.ls-alert-info {
    background: rgba(96, 165, 250, 0.1);
    border-color: rgba(96, 165, 250, 0.4);
    color: var(--ls-info);
}

/* ========== Cards / stats ========== */
.ls-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}
.ls-card {
    background: var(--ls-surface);
    border: 1px solid var(--ls-border);
    border-radius: 10px;
    padding: 1.25rem;
}
.ls-card-label {
    color: var(--ls-text-dim);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}
.ls-card-value { font-size: 1.8rem; font-weight: 600; }
.ls-card-sub { font-size: 0.8rem; color: var(--ls-text-dim); margin-top: 0.25rem; }

/* ========== Tables ========== */
.ls-table-wrap {
    background: var(--ls-surface);
    border: 1px solid var(--ls-border);
    border-radius: 10px;
    overflow: hidden;
}
.ls-table {
    width: 100%;
    border-collapse: collapse;
    color: var(--ls-text);
    font-size: 0.88rem;
}
.ls-table thead th {
    text-align: left;
    padding: 0.75rem 1rem;
    background: var(--ls-surface-2);
    color: var(--ls-text-dim);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    border-bottom: 1px solid var(--ls-border);
}
.ls-table tbody td {
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--ls-border);
}
.ls-table tbody tr:last-child td { border-bottom: none; }
.ls-table tbody tr:hover { background: rgba(255, 255, 255, 0.02); }
.ls-table .col-actions { text-align: right; width: 1px; white-space: nowrap; }
.ls-table .muted { color: var(--ls-text-dim); }
.ls-table code { color: var(--ls-info); font-family: 'Fira Code', Consolas, monospace; font-size: 0.82rem; }

/* ========== Page header (with action buttons on the right) ========== */
.ls-page-head {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 1.5rem;
    gap: 1rem;
}
.ls-page-head h1 { margin: 0; }
.ls-breadcrumb {
    color: var(--ls-text-dim);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}
.ls-breadcrumb a { color: var(--ls-text-dim); }
.ls-breadcrumb a:hover { color: var(--ls-accent); }

/* ========== Form panels ========== */
.ls-panel {
    background: var(--ls-surface);
    border: 1px solid var(--ls-border);
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}
.ls-panel h2 { margin-bottom: 1rem; font-size: 1.05rem; color: var(--ls-text-dim); }
.ls-form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}
.ls-form-grid .ls-field { margin-bottom: 0; }
.ls-form-grid .full { grid-column: 1 / -1; }
@media (max-width: 720px) {
    .ls-form-grid { grid-template-columns: 1fr; }
}
.ls-textarea {
    width: 100%;
    min-height: 90px;
    padding: 0.65rem 0.85rem;
    background: var(--ls-bg);
    border: 1px solid var(--ls-border);
    border-radius: 6px;
    color: var(--ls-text);
    font-family: inherit;
    font-size: 0.9rem;
    resize: vertical;
}
.ls-textarea:focus { outline: none; border-color: var(--ls-accent); box-shadow: 0 0 0 3px var(--ls-accent-soft); }
.ls-help { color: var(--ls-text-dim); font-size: 0.78rem; margin-top: 0.25rem; }
.ls-actions { display: flex; gap: 0.5rem; justify-content: flex-end; margin-top: 1.25rem; }

/* ========== Button variants ========== */
.ls-btn-danger {
    background: transparent;
    border-color: var(--ls-danger);
    color: var(--ls-danger);
}
.ls-btn-danger:hover { background: var(--ls-danger); color: white; }
.ls-btn-sm { padding: 0.35rem 0.7rem; font-size: 0.8rem; }
.ls-btn-link {
    background: transparent;
    border: none;
    color: var(--ls-accent);
    padding: 0;
    cursor: pointer;
    font-size: inherit;
}
.ls-btn-link:hover { color: var(--ls-accent-hover); text-decoration: underline; }

/* ========== Badges ========== */
.ls-badge {
    display: inline-block;
    padding: 0.15rem 0.55rem;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.ls-badge-ok { background: var(--ls-accent-soft); color: var(--ls-accent); }
.ls-badge-warn { background: rgba(251, 191, 36, 0.15); color: var(--ls-warn); }
.ls-badge-danger { background: rgba(248, 113, 113, 0.15); color: var(--ls-danger); }
.ls-badge-muted { background: var(--ls-surface-2); color: var(--ls-text-dim); }

/* ========== Alerts (extra) ========== */
.ls-alert-success {
    background: rgba(52, 211, 153, 0.1);
    border-color: rgba(52, 211, 153, 0.4);
    color: var(--ls-accent);
}

/* ========== Empty state ========== */
.ls-empty {
    background: var(--ls-surface);
    border: 1px dashed var(--ls-border);
    border-radius: 10px;
    padding: 3rem 2rem;
    text-align: center;
    color: var(--ls-text-dim);
}

/* ========== Error boundary ========== */
#blazor-error-ui {
    color-scheme: dark;
    background: var(--ls-danger);
    color: white;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}
#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: 0.75rem; top: 0.5rem; }