/* ============================================================
   SmartDesk Ticketing System
   Professional Enterprise Design — v2.0
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --sidebar-width: 256px;
    --topbar-height: 60px;
    --slate-50: #f8fafc; --slate-100: #f1f5f9; --slate-200: #e2e8f0;
    --slate-300: #cbd5e1; --slate-400: #94a3b8; --slate-500: #64748b;
    --slate-600: #475569; --slate-700: #334155; --slate-800: #1e293b;
    --slate-900: #0f172a;
    --brand-50: #eff6ff; --brand-100: #dbeafe; --brand-500: #3b82f6;
    --brand-600: #2563eb; --brand-700: #1d4ed8;
    --success-50: #f0fdf4; --success-500: #22c55e; --success-700: #15803d;
    --warning-50: #fffbeb; --warning-500: #f59e0b; --warning-700: #b45309;
    --danger-50: #fef2f2; --danger-500: #ef4444; --danger-700: #b91c1c;
    --info-50: #ecfeff; --info-500: #06b6d4; --info-700: #0e7490;
    --body-bg: var(--slate-50); --card-bg: #ffffff; --border-color: var(--slate-200);
    --text-primary: var(--slate-900); --text-secondary: var(--slate-500); --text-muted: var(--slate-400);
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.06), 0 2px 4px -2px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.03);
    --radius: 8px; --radius-lg: 12px;
    --transition: all 0.15s ease;
}
*,*::before,*::after { box-sizing: border-box; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--body-bg); color: var(--text-primary);
    font-size: 13.5px; line-height: 1.6; margin: 0;
    -webkit-font-smoothing: antialiased;
}
a { color: var(--brand-600); text-decoration: none; }
a:hover { color: var(--brand-700); }

/* SIDEBAR */
.sidebar { position: fixed; left: 0; top: 0; width: var(--sidebar-width); height: 100vh; background: var(--slate-900); z-index: 1040; overflow-y: auto; overflow-x: hidden; transition: transform 0.25s cubic-bezier(0.4,0,0.2,1); display: flex; flex-direction: column; border-right: 1px solid rgba(255,255,255,0.06); }
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }
.sidebar-brand { padding: 20px; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid rgba(255,255,255,0.06); flex-shrink: 0; }
.sidebar-brand .brand-icon { width: 36px; height: 36px; background: var(--brand-600); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; flex-shrink: 0; }
.sidebar-brand .brand-text { color: #fff; font-size: 14px; font-weight: 600; line-height: 1.3; letter-spacing: -0.01em; }
.sidebar-brand .brand-text small { display: block; font-size: 10.5px; font-weight: 400; color: var(--slate-400); letter-spacing: 0.3px; margin-top: 1px; }
.sidebar-menu { padding: 12px 10px; flex: 1; }
.sidebar-section { font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; color: var(--slate-600); padding: 16px 12px 6px; }
.sidebar-link { display: flex; align-items: center; gap: 10px; padding: 8px 12px; color: var(--slate-400); text-decoration: none; border-radius: 6px; font-size: 13px; font-weight: 500; transition: var(--transition); margin-bottom: 1px; }
.sidebar-link:hover { background: rgba(255,255,255,0.06); color: var(--slate-200); }
.sidebar-link.active { background: var(--brand-600); color: #fff; }
.sidebar-link i { width: 18px; text-align: center; font-size: 13px; opacity: 0.65; }
.sidebar-link.active i { opacity: 1; }
.sidebar-footer { padding: 12px 20px; border-top: 1px solid rgba(255,255,255,0.06); flex-shrink: 0; }

/* TOPBAR */
.topbar { position: fixed; top: 0; left: var(--sidebar-width); right: 0; height: var(--topbar-height); background: var(--card-bg); border-bottom: 1px solid var(--border-color); display: flex; align-items: center; padding: 0 24px; z-index: 1030; }
.topbar-left { display: flex; align-items: center; gap: 14px; flex: 1; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.topbar-search { position: relative; max-width: 320px; width: 100%; }
.topbar-search input { width: 100%; padding: 7px 14px 7px 36px; border: 1px solid var(--border-color); border-radius: 6px; font-size: 13px; background: var(--slate-50); color: var(--text-primary); transition: var(--transition); }
.topbar-search input:focus { outline: none; border-color: var(--brand-500); box-shadow: 0 0 0 3px rgba(59,130,246,0.08); background: #fff; }
.topbar-search i { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 12px; }
.topbar-icon { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; border-radius: 6px; border: none; background: transparent; color: var(--text-secondary); cursor: pointer; position: relative; transition: var(--transition); font-size: 15px; }
.topbar-icon:hover { background: var(--slate-100); color: var(--text-primary); }
.topbar-icon .badge-dot { position: absolute; top: 7px; right: 7px; width: 7px; height: 7px; background: var(--danger-500); border-radius: 50%; border: 2px solid var(--card-bg); }
.topbar-user { display: flex; align-items: center; gap: 10px; padding: 5px 10px 5px 5px; border-radius: 6px; cursor: pointer; transition: var(--transition); text-decoration: none; color: inherit; }
.topbar-user:hover { background: var(--slate-50); }
.topbar-user-avatar { width: 32px; height: 32px; background: var(--brand-600); border-radius: 6px; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 600; font-size: 12px; }
.topbar-user-info { line-height: 1.3; }
.topbar-user-info .name { font-weight: 600; font-size: 13px; }
.topbar-user-info .role { font-size: 11px; color: var(--text-muted); }

/* MAIN CONTENT */
.main-content { margin-left: var(--sidebar-width); padding-top: var(--topbar-height); min-height: 100vh; }
.content-wrapper { padding: 24px; max-width: 1400px; }

/* PAGE HEADER */
.page-header { margin-bottom: 20px; }
.page-header h1 { font-size: 20px; font-weight: 700; margin: 0 0 2px; color: var(--text-primary); letter-spacing: -0.02em; }
.breadcrumb { background: none; padding: 0; margin: 0; font-size: 12px; }
.breadcrumb-item a { color: var(--brand-600); }
.breadcrumb-item.active { color: var(--text-muted); }

/* CARDS */
.card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: var(--radius); box-shadow: var(--shadow-xs); }
.card-header { background: transparent; border-bottom: 1px solid var(--border-color); padding: 14px 20px; font-weight: 600; font-size: 13.5px; display: flex; align-items: center; justify-content: space-between; }
.card-body { padding: 20px; }

/* STAT CARDS */
.stat-card { background: var(--card-bg); border: 1px solid var(--border-color); border-left: 3px solid var(--brand-500); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow-xs); transition: var(--transition); }
.stat-card:hover { box-shadow: var(--shadow-sm); }
.stat-card .stat-icon { width: 40px; height: 40px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 16px; margin-bottom: 12px; }
.stat-card .stat-value { font-size: 26px; font-weight: 700; line-height: 1; margin-bottom: 2px; letter-spacing: -0.02em; }
.stat-card .stat-label { font-size: 12px; color: var(--text-secondary); font-weight: 500; }
.stat-primary { border-left-color: var(--brand-600); }
.stat-primary .stat-icon { background: var(--brand-50); color: var(--brand-600); }
.stat-success { border-left-color: var(--success-500); }
.stat-success .stat-icon { background: var(--success-50); color: var(--success-700); }
.stat-warning { border-left-color: var(--warning-500); }
.stat-warning .stat-icon { background: var(--warning-50); color: var(--warning-700); }
.stat-danger { border-left-color: var(--danger-500); }
.stat-danger .stat-icon { background: var(--danger-50); color: var(--danger-700); }
.stat-info { border-left-color: var(--info-500); }
.stat-info .stat-icon { background: var(--info-50); color: var(--info-700); }

/* TABLES */
.table { margin: 0; font-size: 13px; }
.table thead th { background: var(--slate-50); border-bottom: 1px solid var(--border-color); font-weight: 600; font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.4px; color: var(--text-secondary); padding: 10px 16px; white-space: nowrap; }
.table tbody td { padding: 10px 16px; border-bottom: 1px solid var(--slate-100); vertical-align: middle; }
.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: var(--slate-50); }

/* BADGES */
.badge { font-weight: 500; font-size: 11px; padding: 3px 8px; border-radius: 4px; letter-spacing: 0.2px; }
.badge-ai { background: var(--brand-50); color: var(--brand-700); font-size: 10px; font-weight: 600; }
.bg-orange { background: #f97316; color: #fff; }

/* BUTTONS */
.btn { font-weight: 500; font-size: 13px; padding: 7px 16px; border-radius: 6px; transition: var(--transition); letter-spacing: -0.01em; }
.btn-primary { background: var(--brand-600); border-color: var(--brand-600); }
.btn-primary:hover { background: var(--brand-700); border-color: var(--brand-700); }
.btn-success { background: var(--success-700); border-color: var(--success-700); }
.btn-success:hover { background: #166534; }
.btn-ai { background: var(--brand-600); border: none; color: #fff; }
.btn-ai:hover { background: var(--brand-700); color: #fff; }
.btn-outline-secondary { border-color: var(--border-color); color: var(--text-secondary); }
.btn-sm { font-size: 12px; padding: 5px 12px; }

/* FORMS */
.form-control, .form-select { border: 1px solid var(--border-color); border-radius: 6px; padding: 8px 12px; font-size: 13px; transition: var(--transition); color: var(--text-primary); }
.form-control:focus, .form-select:focus { border-color: var(--brand-500); box-shadow: 0 0 0 3px rgba(59,130,246,0.08); }
.form-label { font-weight: 600; font-size: 12.5px; color: var(--text-primary); margin-bottom: 4px; }

/* AI SUGGESTION */
.ai-suggestion-box { background: var(--brand-50); border: 1px solid var(--brand-100); border-radius: var(--radius); padding: 16px; position: relative; }
.ai-suggestion-box::before { content: '\f544  AI'; font-family: 'Font Awesome 6 Free', sans-serif; position: absolute; top: -10px; left: 16px; background: var(--brand-600); color: #fff; font-size: 10px; font-weight: 700; padding: 2px 10px; border-radius: 4px; letter-spacing: 0.5px; }
.ai-disclaimer { font-size: 11px; color: var(--brand-700); font-style: italic; margin-top: 8px; }

/* CHAT WIDGET */
.chat-toggle { position: fixed; bottom: 24px; right: 24px; width: 52px; height: 52px; background: var(--brand-600); border: none; border-radius: 14px; color: #fff; font-size: 20px; cursor: pointer; box-shadow: 0 4px 12px rgba(37,99,235,0.35); z-index: 1050; transition: var(--transition); display: flex; align-items: center; justify-content: center; }
.chat-toggle:hover { transform: scale(1.04); background: var(--brand-700); }
.chat-panel { position: fixed; bottom: 88px; right: 24px; width: 370px; max-height: 500px; background: var(--card-bg); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); border: 1px solid var(--border-color); z-index: 1050; display: none; flex-direction: column; overflow: hidden; }
.chat-panel.open { display: flex; }
.chat-header { padding: 14px 18px; background: var(--brand-600); color: #fff; display: flex; align-items: center; gap: 10px; }
.chat-header .chat-title { font-weight: 600; font-size: 13px; }
.chat-header .chat-subtitle { font-size: 11px; opacity: 0.8; }
.chat-messages { flex: 1; overflow-y: auto; padding: 14px; max-height: 340px; min-height: 200px; }
.chat-msg { margin-bottom: 10px; display: flex; gap: 8px; }
.chat-msg.user { justify-content: flex-end; }
.chat-msg .msg-bubble { max-width: 82%; padding: 9px 13px; border-radius: 10px; font-size: 13px; line-height: 1.5; }
.chat-msg.bot .msg-bubble { background: var(--slate-100); color: var(--text-primary); border-bottom-left-radius: 3px; }
.chat-msg.user .msg-bubble { background: var(--brand-600); color: #fff; border-bottom-right-radius: 3px; }
.chat-input-area { padding: 10px 14px; border-top: 1px solid var(--border-color); display: flex; gap: 8px; }
.chat-input-area input { flex: 1; border: 1px solid var(--border-color); border-radius: 6px; padding: 7px 12px; font-size: 13px; outline: none; }
.chat-input-area button { width: 34px; height: 34px; background: var(--brand-600); border: none; border-radius: 6px; color: #fff; cursor: pointer; display: flex; align-items: center; justify-content: center; }

/* LOGIN */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--slate-900); }
.login-card { width: 100%; max-width: 400px; background: var(--card-bg); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); padding: 36px; }
.login-brand { text-align: center; margin-bottom: 28px; }
.login-brand .brand-icon { width: 52px; height: 52px; background: var(--brand-600); border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; color: #fff; font-size: 22px; margin-bottom: 14px; }
.login-brand h2 { font-size: 18px; font-weight: 700; margin-bottom: 2px; }
.login-brand p { font-size: 13px; color: var(--text-muted); }

/* LOADING / EMPTY */
.ai-loading { display: inline-flex; align-items: center; gap: 8px; color: var(--brand-600); font-size: 13px; font-weight: 500; }
.ai-loading .spinner-border { width: 16px; height: 16px; border-width: 2px; }
.empty-state { text-align: center; padding: 40px 20px; color: var(--text-muted); }
.empty-state i { font-size: 40px; margin-bottom: 12px; opacity: 0.25; }
.empty-state h5 { color: var(--text-secondary); font-size: 15px; }

/* MOBILE */
.sidebar-toggle { display: none; background: none; border: none; font-size: 18px; color: var(--text-primary); cursor: pointer; padding: 4px; }
.sidebar-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.45); z-index: 1035; display: none; }
.sidebar-overlay.show { display: block; }
@media (max-width: 991.98px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.show { transform: translateX(0); }
    .sidebar-toggle { display: block; }
    .main-content { margin-left: 0; }
    .topbar { left: 0; }
    .content-wrapper { padding: 18px 14px; }
    .chat-panel { width: calc(100% - 32px); right: 16px; }
}
@media (max-width: 575.98px) {
    .stat-card .stat-value { font-size: 20px; }
    .page-header h1 { font-size: 16px; }
}

/* UTILITIES */
.fw-600 { font-weight: 600; }
.fs-xs { font-size: 11px; }
.fs-sm { font-size: 12px; }
.text-truncate-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.sla-breached { color: var(--danger-500); font-weight: 600; }
.sla-ok { color: var(--success-700); }
.chart-container { position: relative; height: 280px; }

/* Clickable Stat Cards */
.stat-card-link { text-decoration: none; color: inherit; display: block; }
.stat-card-link:hover { color: inherit; text-decoration: none; }
.stat-card-link:hover .stat-card { box-shadow: var(--shadow-md); transform: translateY(-2px); cursor: pointer; }
.stat-card-link:hover .stat-value { color: var(--brand-600); }