:root {
    --bg: #0f1418;
    --panel: #161d24;
    --panel-border: #232c35;
    --text: #e4e9ed;
    --text-muted: #8a97a3;
    --accent: #4c9ffe;
    --accent-hover: #3c8ce8;
    --danger: #e5566d;
    --danger-hover: #d43e57;
    --success-bg: #16332480;
    --success-text: #6fd39a;
    --error-bg: #3a1a1e;
    --error-text: #f19aa6;
    --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    --sans: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --radius: 6px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    font-size: 15px;
    line-height: 1.5;
}

/* ---------- Auth screen ---------- */
.auth-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.auth-card {
    width: 340px;
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius);
    padding: 32px;
}

.auth-card h1 {
    margin: 0 0 4px;
    font-size: 20px;
}

.auth-sub {
    margin: 0 0 24px;
    color: var(--text-muted);
    font-size: 13px;
    font-family: var(--mono);
}

.auth-form { display: flex; flex-direction: column; gap: 4px; }

/* ---------- Topbar ---------- */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 28px;
    border-bottom: 1px solid var(--panel-border);
}

.topbar-title {
    font-weight: 600;
    letter-spacing: -0.01em;
}

.topbar-nav {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
}

.topbar-user {
    color: var(--text-muted);
    font-family: var(--mono);
}

.link-muted {
    color: var(--text-muted);
    text-decoration: none;
}
.link-muted:hover { color: var(--text); }

/* ---------- Layout ---------- */
.page {
    max-width: 920px;
    margin: 0 auto;
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* ---------- Summary cards ---------- */
.summary-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.summary-card {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius);
    padding: 16px 18px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.summary-value {
    font-size: 24px;
    font-weight: 600;
    font-family: var(--mono);
}

.summary-label {
    font-size: 12px;
    color: var(--text-muted);
}

/* ---------- Panels ---------- */
.panel {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius);
    padding: 20px 22px;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
    flex-wrap: wrap;
    gap: 10px;
}

.panel h2 {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
}

/* ---------- Forms ---------- */
label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 4px;
    display: block;
}

input[type="text"],
input[type="password"],
input[type="search"],
select {
    background: #0d1216;
    border: 1px solid var(--panel-border);
    border-radius: var(--radius);
    color: var(--text);
    padding: 9px 11px;
    font-size: 14px;
    font-family: var(--sans);
    width: 100%;
}

input:focus, select:focus {
    outline: 2px solid var(--accent);
    outline-offset: -1px;
    border-color: var(--accent);
}

.inline-form {
    display: flex;
    align-items: flex-end;
    gap: 14px;
    flex-wrap: wrap;
}

.field { display: flex; flex-direction: column; }

.email-input {
    display: flex;
    align-items: center;
    gap: 6px;
}
.email-input input[type="text"] { width: 140px; }
.email-input select { width: 200px; font-family: var(--mono); font-size: 13px; }
.at-symbol { color: var(--text-muted); }

.filter-form {
    display: flex;
    gap: 8px;
}
.filter-form select { width: 170px; }
.filter-form input[type="search"] { width: 180px; }

/* ---------- Buttons ---------- */
.btn {
    border: none;
    border-radius: var(--radius);
    padding: 9px 16px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.12s ease;
}

.btn-primary {
    background: var(--accent);
    color: #04121f;
}
.btn-primary:hover { background: var(--accent-hover); }

.btn-ghost {
    background: transparent;
    border: 1px solid var(--panel-border);
    color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent); }

.btn-small {
    padding: 6px 11px;
    font-size: 12px;
}

.btn-danger {
    background: transparent;
    border: 1px solid var(--danger);
    color: var(--danger);
}
.btn-danger:hover { background: var(--danger-hover); color: #fff; }

/* ---------- Table ---------- */
.accounts-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 4px;
}

.accounts-table th {
    text-align: left;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    font-weight: 600;
    padding: 8px 10px;
    border-bottom: 1px solid var(--panel-border);
}

.accounts-table td {
    padding: 10px;
    border-bottom: 1px solid var(--panel-border);
    font-size: 13.5px;
}

.accounts-table tr:last-child td { border-bottom: none; }

.cell-email {
    font-family: var(--mono);
}

.cell-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

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

.empty-row {
    text-align: center;
    color: var(--text-muted);
    padding: 24px;
}

/* ---------- Alerts ---------- */
.alert {
    padding: 10px 14px;
    border-radius: var(--radius);
    font-size: 13.5px;
}
.alert-success { background: var(--success-bg); color: var(--success-text); }
.alert-error { background: var(--error-bg); color: var(--error-text); }

/* ---------- Modal ---------- */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(5, 8, 11, 0.7);
    align-items: center;
    justify-content: center;
    z-index: 50;
}
.modal-overlay.open { display: flex; }

.modal {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius);
    padding: 24px;
    width: 320px;
}

.modal h3 { margin: 0 0 4px; font-size: 16px; }
.modal-sub { margin: 0 0 16px; font-size: 13px; color: var(--text-muted); }
.modal-sub strong { color: var(--text); font-family: var(--mono); font-weight: 500; }

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 14px;
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
    .summary-row { grid-template-columns: 1fr; }
    .cell-actions { flex-direction: column; align-items: flex-end; }
    .accounts-table { font-size: 12px; }
}