:root {
    --bg: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #2a3a52;
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --border: #334155;
    --primary: #6366f1;
    --primary-hover: #818cf8;
    --danger: #ef4444;
    --danger-hover: #f87171;
    --success: #10b981;
    --warning: #f59e0b;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.5;
}

a { color: var(--primary-hover); text-decoration: none; }
a:hover { color: #a5b4fc; }
code {
    background: var(--bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.9em;
}

/* ---- Topbar ---- */
.topbar {
    display: flex;
    align-items: center;
    gap: 32px;
    padding: 12px 24px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}
.topbar .brand a {
    color: var(--text);
    font-weight: 700;
    font-size: 18px;
}
.topbar .nav-links {
    list-style: none;
    margin: 0; padding: 0;
    display: flex;
    gap: 24px;
    flex: 1;
}
.topbar .nav-links a {
    color: var(--text-muted);
    font-weight: 500;
}
.topbar .nav-links a:hover { color: var(--text); }
.topbar .user-menu {
    display: flex; align-items: center; gap: 12px;
    color: var(--text-muted);
    font-size: 13px;
}
.topbar .user-name { color: var(--text); font-weight: 500; }
.topbar .user-role {
    background: var(--border);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ---- Container ---- */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 32px 24px;
}

h1 { margin: 0 0 16px; font-size: 28px; }
h2 { margin: 32px 0 12px; font-size: 20px; color: var(--text); }

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}
.page-header h1 { margin: 0; }

/* ---- Cards ---- */
.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 16px;
}
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px 20px;
    position: relative;
}
.card-label { color: var(--text-muted); font-size: 13px; }
.card-value { font-size: 32px; font-weight: 700; margin-top: 4px; }
.card-action {
    display: inline-block; margin-top: 8px; font-size: 13px;
}

/* ---- Login ---- */
.login-card {
    max-width: 380px;
    margin: 80px auto 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 32px;
}
.login-card h1 { text-align: center; margin: 0; }
.login-card .subtitle {
    text-align: center; color: var(--text-muted);
    margin: 4px 0 24px;
}

/* ---- Forms ---- */
form label, .form-stack label {
    display: block;
    margin-bottom: 14px;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 500;
}
form input[type="text"], form input[type="email"], form input[type="password"], form select, form textarea {
    display: block;
    width: 100%;
    margin-top: 4px;
    padding: 10px 12px;
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
}
form input:focus, form select:focus, form textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}
form small {
    display: block;
    margin-top: 4px;
    color: var(--text-muted);
    font-size: 12px;
}

.btn-primary, .btn-danger, button[type="submit"] {
    display: inline-block;
    padding: 10px 20px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s;
}
.btn-primary:hover, button[type="submit"]:hover { background: var(--primary-hover); }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: var(--danger-hover); }
.btn-link {
    background: none; border: none;
    color: var(--text-muted); cursor: pointer;
    padding: 4px 8px; font-size: 14px;
    text-decoration: none;
}
.btn-link:hover { color: var(--text); }

form.inline { display: inline; margin: 0; }

/* ---- Alerts ---- */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 14px;
}
.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}
.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #6ee7b7;
}

/* ---- Fieldset (forms agrupados) ---- */
.fieldset {
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 14px 18px 8px;
    margin-bottom: 14px;
    background: rgba(0,0,0,0.15);
}
.fieldset legend {
    color: var(--text);
    font-weight: 600;
    font-size: 13px;
    padding: 0 6px;
}
.fieldset > small {
    display: block;
    margin: 0 0 12px;
    color: var(--text-muted);
    font-size: 12px;
}

.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 6px 12px;
    margin-top: 6px;
}
.checkbox-item {
    display: flex !important;
    align-items: center;
    gap: 8px;
    margin: 0 !important;
    color: var(--text) !important;
    font-size: 14px !important;
    font-weight: normal !important;
    cursor: pointer;
}
.checkbox-item input[type="checkbox"] {
    width: auto !important;
    margin: 0 !important;
}

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

.badge-role {
    background: rgba(99, 102, 241, 0.2);
    color: #a5b4fc;
}

/* Hint visual em campos cruciais (form de instância) */
.hint-inline {
    display: inline-block;
    background: var(--bg);
    color: var(--warning);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-family: ui-monospace, monospace;
    margin-left: 6px;
}

/* ---- Tables ---- */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}
.data-table th, .data-table td {
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.data-table th {
    background: var(--bg);
    color: var(--text-muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover { background: var(--bg-card-hover); }

/* ---- Badges ---- */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.badge-whatsapp { background: #128c7e; color: #fff; }
.badge-discord { background: #5865f2; color: #fff; }
.badge-status-active { background: rgba(16, 185, 129, 0.2); color: #6ee7b7; }
.badge-status-disabled { background: rgba(148, 163, 184, 0.2); color: var(--text-muted); }

/* ---- Empty state ---- */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
    background: var(--bg-card);
    border: 1px dashed var(--border);
    border-radius: 8px;
}
.empty-state p { margin-bottom: 20px; }

/* ---- Detail page ---- */
.info-grid {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 24px;
}
.info-grid dt { color: var(--text-muted); font-size: 13px; }
.info-grid dd { margin: 0; }

.panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 24px;
}
.panel h2 { margin-top: 0; }
.panel.danger { border-color: rgba(239, 68, 68, 0.4); }
.panel.danger h2 { color: var(--danger-hover); }

.webhook-info {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 24px;
}
.code-block {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 12px 16px;
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
    font-size: 13px;
    color: #fbbf24;
    overflow-x: auto;
    word-break: break-all;
}

.hint {
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 6px;
    padding: 12px 16px;
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 16px;
}
.hint strong { color: var(--text); }

.status {
    margin-top: 32px;
    padding: 16px 20px;
    background: var(--bg-card);
    border-left: 3px solid var(--primary);
    border-radius: 4px;
}