*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --success: #16a34a;
    --warning: #d97706;
    --danger: #dc2626;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-500: #6b7280;
    --gray-700: #374151;
    --gray-900: #111827;
    --radius: 6px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--gray-50);
    color: var(--gray-900);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 1rem; }
.main-content { flex: 1; padding: 2rem 1rem; }

/* Navbar */
.navbar { background: var(--gray-900); padding: 0.75rem 0; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.nav-brand { color: #fff; text-decoration: none; font-weight: 700; font-size: 1.1rem; }
.nav-links { display: flex; align-items: center; gap: 1.25rem; }
.nav-links a { color: var(--gray-300); text-decoration: none; font-size: 0.9rem; }
.nav-links a:hover { color: #fff; }
.nav-user { color: var(--gray-500); font-size: 0.85rem; }

/* Buttons */
.btn {
    display: inline-block; padding: 0.5rem 1rem; border: none; border-radius: var(--radius);
    font-size: 0.9rem; cursor: pointer; text-decoration: none; text-align: center;
    transition: background 0.15s, opacity 0.15s;
}
.btn:hover { opacity: 0.9; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-outline { background: transparent; border: 1px solid var(--gray-300); color: inherit; }
.btn-outline:hover { background: var(--gray-100); }
.btn-sm { padding: 0.3rem 0.6rem; font-size: 0.8rem; }

/* Forms */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.3rem; font-weight: 500; font-size: 0.9rem; }
.form-control {
    width: 100%; padding: 0.5rem 0.75rem; border: 1px solid var(--gray-300);
    border-radius: var(--radius); font-size: 0.9rem; font-family: inherit;
}
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
textarea.form-control { min-height: 120px; resize: vertical; }
select.form-control { appearance: auto; }

/* Cards */
.card {
    background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius);
    padding: 1.5rem; margin-bottom: 1rem;
}
.card-header { font-weight: 600; font-size: 1.1rem; margin-bottom: 1rem; padding-bottom: 0.75rem; border-bottom: 1px solid var(--gray-200); }

/* Alerts */
.alert {
    padding: 0.75rem 1rem; border-radius: var(--radius); margin-bottom: 1rem;
    font-size: 0.9rem;
}
.alert-success { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.alert-error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-info { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }

/* Tables */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.6rem 0.75rem; text-align: left; border-bottom: 1px solid var(--gray-200); font-size: 0.9rem; }
th { background: var(--gray-50); font-weight: 600; }
tr:hover td { background: var(--gray-50); }

/* Badges */
.badge {
    display: inline-block; padding: 0.15rem 0.5rem; border-radius: 9999px;
    font-size: 0.75rem; font-weight: 600; text-transform: uppercase;
}
.badge-open { background: #dbeafe; color: #1e40af; }
.badge-pending { background: #fef3c7; color: #92400e; }
.badge-resolved { background: #dcfce7; color: #166534; }
.badge-closed { background: var(--gray-200); color: var(--gray-700); }
.badge-low { background: var(--gray-200); color: var(--gray-700); }
.badge-medium { background: #dbeafe; color: #1e40af; }
.badge-high { background: #fef3c7; color: #92400e; }
.badge-urgent { background: #fee2e2; color: #991b1b; }
.badge-form { background: #ede9fe; color: #5b21b6; }
.badge-email { background: #fce7f3; color: #9d174d; }
.badge-account { background: #d1fae5; color: #065f46; }

/* Stats */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.stat-card { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 1rem; text-align: center; }
.stat-value { font-size: 2rem; font-weight: 700; color: var(--primary); }
.stat-label { font-size: 0.8rem; color: var(--gray-500); text-transform: uppercase; }

/* Messages / Thread */
.message { padding: 1rem; margin-bottom: 0.75rem; border-radius: var(--radius); border: 1px solid var(--gray-200); }
.message-client { background: #eff6ff; border-color: #bfdbfe; }
.message-contact { background: #fff; }
.message-system { background: var(--gray-100); font-style: italic; }
.message-internal { background: #fefce8; border-color: #fde68a; }
.message-header { display: flex; justify-content: space-between; margin-bottom: 0.5rem; font-size: 0.85rem; color: var(--gray-500); }
.message-sender { font-weight: 600; color: var(--gray-700); }
.message-body { white-space: pre-wrap; word-break: break-word; }

/* Ticket detail */
.ticket-header { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 1rem; margin-bottom: 1.5rem; }
.ticket-meta { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; }
.ticket-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* Pagination */
.pagination { display: flex; gap: 0.25rem; margin-top: 1rem; justify-content: center; }
.pagination a, .pagination span {
    padding: 0.4rem 0.75rem; border: 1px solid var(--gray-300); border-radius: var(--radius);
    font-size: 0.85rem; text-decoration: none; color: var(--gray-700);
}
.pagination .active { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination a:hover { background: var(--gray-100); }

/* Auth pages */
.auth-wrap { max-width: 420px; margin: 3rem auto; }
.auth-wrap h1 { text-align: center; margin-bottom: 1.5rem; }

/* Inline forms */
.inline-form { display: inline; }
.form-row { display: flex; gap: 0.75rem; align-items: flex-end; flex-wrap: wrap; }
.form-row .form-group { margin-bottom: 0; }
.checkbox-label { display: flex; align-items: center; gap: 0.4rem; font-size: 0.9rem; cursor: pointer; }

/* Filter bar */
.filter-bar { display: flex; gap: 0.5rem; margin-bottom: 1rem; flex-wrap: wrap; align-items: center; }
.filter-bar a { padding: 0.3rem 0.75rem; border-radius: var(--radius); text-decoration: none; font-size: 0.85rem; color: var(--gray-700); border: 1px solid var(--gray-300); }
.filter-bar a.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.filter-bar a:hover:not(.active) { background: var(--gray-100); }

/* Footer */
.footer { padding: 1rem 0; text-align: center; font-size: 0.8rem; color: var(--gray-500); border-top: 1px solid var(--gray-200); margin-top: 2rem; }

/* Embed */
.embed-body { background: #fff; }
.embed-container { max-width: 600px; margin: 1rem auto; padding: 1rem; }
.embed-container h2 { margin-bottom: 1rem; font-size: 1.2rem; }

/* Error page */
.error-page { text-align: center; padding: 4rem 0; }
.error-page h1 { font-size: 4rem; color: var(--gray-300); }
.error-page p { color: var(--gray-500); margin: 1rem 0 2rem; }

/* Responsive */
@media (max-width: 768px) {
    .nav-inner { flex-direction: column; gap: 0.5rem; }
    .nav-links { flex-wrap: wrap; justify-content: center; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .ticket-header { flex-direction: column; }
}