:root {
    --bg: #f1f5f9;
    --card: #fff;
    --text: #0f172a;
    --muted: #64748b;
    --primary: #1d4ed8;
    --primary-hover: #1e40af;
    --border: #e2e8f0;
    --ok: #15803d;
    --error: #b91c1c;
    --sidebar: #0f172a;
    --sidebar-text: #e2e8f0;
    --sidebar-active: rgba(59, 130, 246, 0.2);
    --shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
    --radius: 10px;
    --header-h: 56px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.5;
}

a { color: var(--primary); }

/* Auth */
.auth-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e3a8a, #3b82f6);
    padding: 1rem;
}

.auth-card {
    background: var(--card);
    padding: 2rem;
    border-radius: var(--radius);
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.auth-card h1 { margin: 0 0 0.25rem; font-size: 1.5rem; }
.auth-subtitle { color: var(--muted); margin-bottom: 1.5rem; }
.auth-footer { margin-top: 1rem; text-align: center; }
.auth-card label { display: block; margin-top: 0.75rem; font-weight: 600; font-size: 0.875rem; }
.auth-card input {
    width: 100%;
    padding: 0.65rem 0.75rem;
    margin-top: 0.25rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
}

/* Admin shell */
.admin-body {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 260px;
    background: var(--sidebar);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    height: 100vh;
    position: sticky;
    top: 0;
    overflow-y: auto;
}

.admin-sidebar-brand {
    font-weight: 700;
    font-size: 1rem;
    padding: 1rem 1rem 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.admin-sidebar-brand .ti { font-size: 1.25rem; }

.admin-nav {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    padding: 0.75rem;
    flex: 1;
}

.admin-nav-group { margin-bottom: 0.5rem; }

.admin-nav-group-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #94a3b8;
    padding: 0.5rem 0.75rem 0.35rem;
}

.admin-nav-link {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.55rem 0.75rem;
    border-radius: 8px;
    color: var(--sidebar-text);
    text-decoration: none;
    font-size: 0.9375rem;
}

.admin-nav-link .ti { font-size: 1.1rem; opacity: 0.9; }

.admin-nav-link:hover,
.admin-nav-link.is-active {
    background: var(--sidebar-active);
    color: #fff;
}

.admin-nav-link-child {
    padding-left: 2.25rem;
    font-size: 0.9rem;
}

.admin-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 100vh;
}

.admin-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0 1rem;
    height: var(--header-h);
    background: var(--card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 30;
}

.admin-menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    color: var(--text);
}

.admin-menu-toggle .ti { font-size: 1.35rem; }

.admin-header-title {
    flex: 1;
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
}

.admin-user-menu { position: relative; }

.admin-user-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.2rem 0.75rem 0.2rem 0.2rem;
    cursor: pointer;
    font-size: 0.875rem;
}

.admin-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
}

.admin-user-name { max-width: 140px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.admin-user-dropdown {
    position: absolute;
    right: 0;
    top: calc(100% + 6px);
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    min-width: 220px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    z-index: 50;
}

.admin-user-dropdown .muted { color: var(--muted); font-size: 0.875rem; margin: 0.25rem 0 0.75rem; }

.admin-content {
    padding: 1.25rem;
    flex: 1;
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
}

.admin-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    z-index: 40;
}

.admin-backdrop.is-visible { display: block; }

.container { width: 100%; }

/* Page structure */
.admin-page-header { margin-bottom: 1.25rem; }
.admin-page-header h2 { margin: 0 0 0.25rem; font-size: 1.25rem; }
.admin-page-header p { margin: 0; color: var(--muted); font-size: 0.9375rem; }

.admin-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    margin-bottom: 1rem;
}

.admin-toolbar .btn { flex-shrink: 0; }

.admin-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
}

.card-error { text-align: center; padding: 2rem; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
    line-height: 1.3;
    transition: background 0.15s, border-color 0.15s;
}

.btn .ti { font-size: 1.05rem; }

.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); }

.btn-secondary {
    background: var(--card);
    color: var(--text);
    border-color: var(--border);
}

.btn-secondary:hover { background: var(--bg); }

.btn-danger { background: #fef2f2; color: #b91c1c; border-color: #fecaca; }
.btn-danger:hover { background: #fee2e2; }

.btn-block { width: 100%; }

.btn-sm { padding: 0.35rem 0.65rem; font-size: 0.8125rem; }

.btn-link,
.btn-link button {
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
    padding: 0;
    text-decoration: underline;
    font: inherit;
}

.admin-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.admin-actions .btn { white-space: nowrap; }

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

/* Flash */
.flash {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.9375rem;
}

.flash-success { background: #dcfce7; color: #166534; }
.flash-error { background: #fee2e2; color: #991b1b; }
.flash-warning { background: #fef3c7; color: #92400e; }
.flash-info { background: #dbeafe; color: #1e40af; }

/* Dashboard */
.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.dash-card,
.admin-stat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow);
}

.dash-label,
.admin-stat-label {
    display: block;
    color: var(--muted);
    font-size: 0.8125rem;
    margin-bottom: 0.35rem;
}

.dash-card strong,
.admin-stat-card strong { font-size: 1.75rem; font-weight: 700; }

.dash-card .ok { color: var(--ok); }
.dash-card .error { color: var(--error); }

.admin-status-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.admin-status-grid-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px;
}

/* Ticket status badges */
.ticket-status-badge {
    display: inline-block;
    padding: 0.25rem 0.65rem;
    border-radius: 999px;
    font-size: 0.8125rem;
    font-weight: 600;
    line-height: 1.3;
    white-space: nowrap;
}

.ticket-status-aberto { background: #fef9c3; color: #854d0e; }
.ticket-status-em-atendimento { background: #dbeafe; color: #1e40af; }
.ticket-status-aguardando-informacao { background: #ffedd5; color: #c2410c; }
.ticket-status-resolvido { background: #dcfce7; color: #166534; }
.ticket-status-encerrado { background: #f1f5f9; color: #475569; }
.ticket-status-cancelado { background: #fee2e2; color: #b91c1c; }

.admin-pill {
    display: inline-block;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.admin-pill-success { background: #dcfce7; color: #166534; }
.admin-pill-muted { background: #f1f5f9; color: #64748b; }

/* Tables desktop */
.admin-table-wrap {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-bottom: 1rem;
}

.admin-table,
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

.admin-table th,
.admin-table td,
.data-table th,
.data-table td {
    text-align: left;
    padding: 0.65rem 0.85rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.admin-table th,
.data-table th {
    background: #f8fafc;
    font-weight: 600;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--muted);
}

.admin-table tbody tr:last-child td,
.data-table tbody tr:last-child td { border-bottom: none; }

.admin-table tbody tr:hover,
.data-table tbody tr:hover { background: #f8fafc; }

.admin-list-card-title {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text);
}

/* Forms */
.admin-form,
.form-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
    max-width: 640px;
}

.admin-form .admin-field,
.form-grid label,
.admin-field label {
    display: block;
    margin-top: 1rem;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text);
}

.admin-form .admin-field:first-child,
.form-grid label:first-of-type { margin-top: 0; }

.admin-form input:not([type="checkbox"]):not([type="radio"]),
.admin-form select,
.admin-form textarea,
.form-grid input:not([type="checkbox"]):not([type="radio"]),
.form-grid select,
.form-grid textarea {
    width: 100%;
    max-width: 100%;
    padding: 0.6rem 0.75rem;
    margin-top: 0.35rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
}

.admin-form textarea,
.form-grid textarea { min-height: 100px; resize: vertical; }

.admin-form .checkbox-row,
.form-grid label:has(input[type="checkbox"]) {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    margin-top: 0.75rem;
}

.admin-form .checkbox-row input,
.form-grid label input[type="checkbox"] { width: auto; margin: 0; }

.admin-form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.admin-filter-card {
    margin-bottom: 1rem;
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 0.75rem 1rem;
    align-items: end;
}

.filter-grid label {
    display: block;
    font-weight: 600;
    font-size: 0.8125rem;
    margin: 0;
}

.filter-grid input,
.filter-grid select {
    width: 100%;
    padding: 0.5rem 0.65rem;
    margin-top: 0.25rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.9375rem;
}

.filter-grid .btn { grid-column: 1 / -1; justify-self: start; }

.page-actions { margin-bottom: 1rem; }

.admin-ticket-detail h2 { margin: 0 0 0.75rem; font-size: 1.25rem; }
.admin-ticket-meta { display: flex; flex-wrap: wrap; gap: 0.75rem 1.25rem; margin-bottom: 1rem; align-items: center; }
.admin-ticket-description { color: var(--text); line-height: 1.6; }

.admin-comment-list { list-style: none; padding: 0; margin: 1rem 0 0; }
.admin-comment-list li {
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 0.5rem;
    background: #f8fafc;
}

.admin-history-list { list-style: none; padding: 0; margin: 0; }
.admin-history-list li {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.875rem;
}

.admin-history-list li:last-child { border-bottom: none; }

.audit-details {
    font-size: 0.75rem;
    max-width: 280px;
    white-space: pre-wrap;
    margin: 0;
    word-break: break-word;
}

.muted { color: var(--muted); font-size: 0.9375rem; }

.admin-analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.admin-analytics-grid .admin-card h3 {
    margin: 0 0 0.75rem;
    font-size: 1rem;
}

.analytics-chart {
    min-height: 280px;
    width: 100%;
}

@media (max-width: 900px) {
    .admin-analytics-grid {
        grid-template-columns: 1fr;
    }

    .analytics-chart {
        min-height: 240px;
    }
}

/* Mobile */
@media (max-width: 900px) {
    .admin-body { flex-direction: column; }

    .admin-sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        z-index: 45;
        transform: translateX(-100%);
        transition: transform 0.2s ease;
        width: min(280px, 88vw);
    }

    .admin-sidebar.is-open { transform: translateX(0); }

    .admin-menu-toggle { display: inline-flex; }

    .admin-user-name { display: none; }

    .admin-toolbar .btn,
    .page-actions .btn {
        width: 100%;
        padding: 0.75rem 1rem;
        font-size: 1rem;
        min-height: 48px;
    }

    .admin-toolbar,
    .page-actions { flex-direction: column; }

    .filter-grid { grid-template-columns: 1fr; }
    .filter-grid .btn { width: 100%; min-height: 48px; }

    .admin-form-actions { flex-direction: column; }
    .admin-form-actions .btn {
        width: 100%;
        min-height: 48px;
        padding: 0.75rem 1rem;
        font-size: 1rem;
    }

    .admin-table-wrap {
        overflow: visible;
        border: none;
        background: transparent;
        box-shadow: none;
    }

    .admin-table-responsive,
    .admin-table-responsive thead,
    .admin-table-responsive tbody,
    .admin-table-responsive th,
    .admin-table-responsive td,
    .admin-table-responsive tr {
        display: block;
    }

    .admin-table-responsive thead { display: none; }

    .admin-table-responsive tbody {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
    }

    .admin-table-responsive tbody tr {
        background: var(--card);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 1rem;
        box-shadow: var(--shadow);
    }

    .admin-table-responsive tbody tr:hover { background: var(--card); }

    .admin-table-responsive td {
        border: none;
        padding: 0.35rem 0;
        text-align: left;
        word-break: break-word;
        overflow-wrap: anywhere;
    }

    .admin-table-responsive td::before {
        display: block;
        content: attr(data-label);
        font-size: 0.7rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.04em;
        color: var(--muted);
        margin-bottom: 0.15rem;
    }

    .admin-table-responsive td.admin-list-card-title::before,
    .admin-table-responsive td[data-label=""]::before {
        display: none;
    }

    .admin-table-responsive td.admin-list-card-title {
        font-size: 1.05rem;
        font-weight: 700;
        padding-bottom: 0.5rem;
        margin-bottom: 0.25rem;
        border-bottom: 1px solid var(--border);
    }

    .admin-table-responsive td.admin-actions,
    .admin-table-responsive td.admin-list-card-actions {
        margin-top: 0.75rem;
        padding-top: 0.75rem;
        border-top: 1px solid var(--border);
    }

    .admin-table-responsive td.admin-actions::before,
    .admin-table-responsive td.admin-list-card-actions::before {
        margin-bottom: 0.5rem;
    }

    .admin-table-responsive .admin-actions {
        flex-direction: column;
        width: 100%;
    }

    .admin-table-responsive .admin-actions .btn,
    .admin-table-responsive .admin-actions form {
        width: 100%;
    }

    .admin-table-responsive .admin-actions .btn {
        min-height: 48px;
        padding: 0.75rem 1rem;
        font-size: 1rem;
    }

    .dashboard-cards { grid-template-columns: 1fr; }
}

.role-permissions-bulk {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 1.5rem;
    margin-top: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.role-permissions-bulk-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}

.role-permissions-bulk-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--muted);
    min-width: 4.5rem;
}