@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@400;600;700&family=Barlow:wght@300;400;500;600&display=swap');

:root {
  --bg-deep: #0d0d1a;
  --bg-card: #161628;
  --bg-elevated: #1e1e38;
  --accent: #e85d26;
  --accent-dim: #c04a1a;
  --accent2: #f5a623;
  --blue: #4a90d9;
  --green: #2ecc71;
  --red: #e74c3c;
  --yellow: #f39c12;
  --text-primary: #f0f0f5;
  --text-secondary: #9090b0;
  --text-muted: #5a5a78;
  --border: #2a2a4a;
  --border-light: #3a3a5a;
  --radius: 10px;
  --font-display: 'Barlow Condensed', sans-serif;
  --font-body: 'Barlow', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg-deep); color: var(--text-primary); font-family: var(--font-body); font-size: 15px; line-height: 1.5; min-height: 100vh; }
h1,h2,h3,h4 { font-family: var(--font-display); font-weight: 700; letter-spacing: .02em; }
a { color: var(--accent); text-decoration: none; }
::-webkit-scrollbar { width: 6px; } ::-webkit-scrollbar-track { background: var(--bg-deep); } ::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }

/* Layout */
.app-layout { display: flex; min-height: 100vh; }
.sidebar { width: 240px; background: var(--bg-card); border-right: 1px solid var(--border); display: flex; flex-direction: column; flex-shrink: 0; position: fixed; top: 0; left: 0; bottom: 0; z-index: 50; overflow-y: auto; }
.sidebar-logo { padding: 24px 20px 20px; border-bottom: 1px solid var(--border); }
.logo-text { font-family: var(--font-display); font-size: 26px; font-weight: 700; color: var(--accent); }
.logo-sub { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .1em; }
.sidebar-nav { padding: 16px 0; flex: 1; }
.nav-item { display: flex; align-items: center; gap: 12px; padding: 11px 20px; color: var(--text-secondary); cursor: pointer; font-size: 15px; font-weight: 500; border-left: 3px solid transparent; transition: all .12s; user-select: none; }
.nav-item:hover { color: var(--text-primary); background: rgba(255,255,255,.03); }
.nav-item.active { color: var(--accent); background: rgba(232,93,38,.08); border-left-color: var(--accent); }
.nav-icon { font-size: 18px; width: 22px; text-align: center; }
.sidebar-footer { padding: 16px 20px; border-top: 1px solid var(--border); font-size: 12px; color: var(--text-muted); }
.main-content { flex: 1; margin-left: 240px; overflow-y: auto; min-height: 100vh; }
.page-header { padding: 28px 32px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.page-header h1 { font-size: 30px; }
.page-header-sub { color: var(--text-secondary); font-size: 14px; margin-top: 4px; }
.page-body { padding: 28px 32px; }
.page { display: none; }
.page.active { display: block; }

/* Cards */
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: 6px; border: none; cursor: pointer; font-family: var(--font-body); font-size: 14px; font-weight: 500; transition: all .15s; text-decoration: none; user-select: none; }
.btn-primary { background: var(--accent); color: #fff; } .btn-primary:hover { background: var(--accent-dim); }
.btn-secondary { background: var(--bg-elevated); color: var(--text-primary); border: 1px solid var(--border); } .btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-ghost { background: transparent; color: var(--text-secondary); } .btn-ghost:hover { color: var(--text-primary); }
.btn-danger { background: var(--red); color: #fff; } .btn-danger:hover { opacity: .85; }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* Forms */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 12px; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .05em; }
.form-control { background: var(--bg-deep); border: 1px solid var(--border); border-radius: 6px; padding: 9px 12px; color: var(--text-primary); font-family: var(--font-body); font-size: 14px; width: 100%; transition: border-color .15s; }
.form-control:focus { outline: none; border-color: var(--accent); }
.form-control::placeholder { color: var(--text-muted); }
select.form-control { cursor: pointer; } select.form-control option { background: var(--bg-card); }
textarea.form-control { resize: vertical; min-height: 80px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-actions { display: flex; gap: 10px; justify-content: flex-end; padding-top: 16px; border-top: 1px solid var(--border); margin-top: 16px; }

/* Badges */
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; border-radius: 20px; font-size: 11px; font-weight: 700; font-family: var(--font-display); letter-spacing: .04em; }
.badge-orange { background: rgba(232,93,38,.15); color: var(--accent); border: 1px solid rgba(232,93,38,.3); }
.badge-green { background: rgba(46,204,113,.12); color: var(--green); border: 1px solid rgba(46,204,113,.25); }
.badge-yellow { background: rgba(243,156,18,.12); color: var(--yellow); border: 1px solid rgba(243,156,18,.25); }
.badge-red { background: rgba(231,76,60,.12); color: var(--red); border: 1px solid rgba(231,76,60,.25); }
.badge-blue { background: rgba(74,144,217,.12); color: var(--blue); border: 1px solid rgba(74,144,217,.25); }

/* Tabs */
.tab-bar { display: flex; gap: 4px; border-bottom: 2px solid var(--border); margin-bottom: 20px; }
.tab-btn { padding: 10px 18px; background: none; border: none; color: var(--text-secondary); font-family: var(--font-display); font-size: 16px; font-weight: 600; cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -2px; transition: all .15s; }
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }

/* Modal */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.7); z-index: 200; display: flex; align-items: center; justify-content: center; padding: 20px; backdrop-filter: blur(4px); animation: fadeIn .15s ease; }
.modal { background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; width: 100%; max-width: 700px; max-height: 90vh; overflow-y: auto; animation: slideUp .2s ease; }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: var(--bg-card); z-index: 1; }
.modal-header h2 { font-size: 22px; }
.modal-body { padding: 24px; }
@keyframes fadeIn { from{opacity:0} to{opacity:1} }
@keyframes slideUp { from{transform:translateY(20px);opacity:0} to{transform:translateY(0);opacity:1} }

/* Table */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th { text-align: left; padding: 10px 14px; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); border-bottom: 1px solid var(--border); }
.data-table td { padding: 12px 14px; border-bottom: 1px solid rgba(42,42,74,.5); font-size: 14px; }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(255,255,255,.02); }
.table-wrap { overflow-x: auto; }

/* Stats */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.stat-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.stat-label { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); margin-bottom: 6px; }
.stat-value { font-family: var(--font-display); font-size: 26px; font-weight: 700; }
.stat-sub { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }

/* Vehicle cards */
.vehicle-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.vehicle-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; cursor: pointer; transition: all .2s; }
.vehicle-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0,0,0,.4); }
.vc-header { height: 130px; background: linear-gradient(135deg, var(--bg-elevated), var(--bg-deep)); display: flex; align-items: center; justify-content: center; font-size: 60px; position: relative; border-bottom: 1px solid var(--border); }
.vc-badge { position: absolute; top: 12px; right: 12px; }
.vc-body { padding: 16px 20px; }
.vc-name { font-family: var(--font-display); font-size: 22px; font-weight: 700; margin-bottom: 2px; }
.vc-sub { font-size: 14px; color: var(--text-secondary); margin-bottom: 12px; }
.vc-stats { display: flex; gap: 20px; }
.vc-stat-label { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--text-muted); }
.vc-stat-val { font-family: var(--font-display); font-size: 17px; font-weight: 700; }

/* Helpers */
.km-badge { font-family: var(--font-display); font-size: 13px; color: var(--accent2); background: rgba(245,166,35,.1); padding: 2px 8px; border-radius: 4px; white-space: nowrap; }
.cost { font-family: var(--font-display); font-weight: 700; font-size: 15px; color: var(--green); }
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.empty-icon { font-size: 48px; margin-bottom: 16px; }
.loading { display: flex; align-items: center; justify-content: center; padding: 60px; color: var(--text-muted); gap: 10px; }
.spinner { width: 22px; height: 22px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin .7s linear infinite; flex-shrink: 0; }
@keyframes spin { to{transform:rotate(360deg)} }
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.alert-warning { background: rgba(243,156,18,.1); border: 1px solid rgba(243,156,18,.3); color: var(--yellow); }
.alert-success { background: rgba(46,204,113,.1); border: 1px solid rgba(46,204,113,.3); color: var(--green); }
.alert-error { background: rgba(231,76,60,.1); border: 1px solid rgba(231,76,60,.3); color: var(--red); }
.alert-info { background: rgba(74,144,217,.1); border: 1px solid rgba(74,144,217,.3); color: var(--blue); }
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }

/* Scanner */
.scanner-drop { border: 2px dashed var(--border); border-radius: 10px; padding: 40px; text-align: center; cursor: pointer; transition: all .2s; background: var(--bg-deep); }
.scanner-drop:hover { border-color: var(--accent); background: rgba(232,93,38,.05); }
.drop-icon { font-size: 40px; margin-bottom: 12px; }

/* Chat */
.chat-wrap { display: flex; flex-direction: column; height: calc(100vh - 260px); min-height: 400px; }
.chat-messages { flex: 1; overflow-y: auto; background: var(--bg-deep); border-radius: 10px; border: 1px solid var(--border); padding: 16px; display: flex; flex-direction: column; gap: 14px; margin-bottom: 12px; -webkit-overflow-scrolling: touch; }
.chat-bubble-wrap { display: flex; gap: 10px; align-items: flex-start; }
.chat-bubble-wrap.user { flex-direction: row-reverse; }
.chat-avatar { width: 36px; height: 36px; border-radius: 50%; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 16px; }
.chat-avatar.ai { background: var(--accent); }
.chat-avatar.user { background: var(--blue); }
.chat-bubble { max-width: 78%; border-radius: 14px; padding: 12px 16px; font-size: 14px; line-height: 1.65; white-space: pre-wrap; }
.chat-bubble.ai { background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px 14px 14px 4px; }
.chat-bubble.user { background: rgba(74,144,217,.15); border: 1px solid rgba(74,144,217,.3); border-radius: 14px 14px 4px 14px; }
.chat-input-row { display: flex; gap: 8px; }
.chat-input-row textarea { flex: 1; resize: none; }
.typing-dots { display: flex; gap: 5px; align-items: center; padding: 4px 0; }
.typing-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); animation: typing 1.2s ease infinite; }
.typing-dot:nth-child(2) { animation-delay: .2s; } .typing-dot:nth-child(3) { animation-delay: .4s; }
@keyframes typing { 0%,80%,100%{opacity:.2;transform:scale(.8)} 40%{opacity:1;transform:scale(1)} }

/* Mobile nav */
.mobile-nav { display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 100; background: var(--bg-card); border-top: 1px solid var(--border); padding-bottom: env(safe-area-inset-bottom); }
.mobile-nav-inner { display: flex; justify-content: space-around; padding: 6px 0 4px; }
.mobile-nav-btn { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 6px 8px; background: none; border: none; color: var(--text-muted); font-size: 10px; font-family: var(--font-body); cursor: pointer; min-width: 52px; transition: color .15s; -webkit-tap-highlight-color: transparent; }
.mobile-nav-btn .mn-icon { font-size: 22px; }
.mobile-nav-btn.active { color: var(--accent); }

/* Guide */
.part-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; transition: border-color .2s; margin-bottom: 10px; }
.part-card-header { display: flex; align-items: center; gap: 12px; padding: 14px 18px; cursor: pointer; }
.part-card-body { padding: 0 18px 18px; border-top: 1px solid var(--border); }
.guide-box { border-radius: 8px; padding: 12px 14px; margin-top: 12px; }
.guide-box-title { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 6px; }
.guide-box-text { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.guide-fnq { background: rgba(245,166,35,.08); border: 1px solid rgba(245,166,35,.25); }
.guide-fnq .guide-box-title { color: var(--accent2); }
.guide-warn { background: rgba(231,76,60,.08); border: 1px solid rgba(231,76,60,.2); }
.guide-warn .guide-box-title { color: var(--red); }
.guide-flag { background: rgba(155,89,182,.08); border: 1px solid rgba(155,89,182,.25); }
.guide-flag .guide-box-title { color: #9b59b6; }
.quick-chips { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.chip { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 20px; padding: 5px 12px; font-size: 12px; color: var(--text-secondary); cursor: pointer; transition: all .15s; white-space: nowrap; font-family: var(--font-body); }
.chip:hover { border-color: var(--accent); color: var(--accent); }

/* Print */
@media print {
  .sidebar, .mobile-nav, .no-print { display: none !important; }
  .main-content { margin-left: 0; }
  body { background: #fff; color: #000; }
  .card, .stat-card { border: 1px solid #ddd; box-shadow: none; background: #fff; }
  .stat-value, .vc-name, h1, h2, h3 { color: #000; }
  .text-secondary, .stat-label, .stat-sub { color: #555; }
}

/* Responsive */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main-content { margin-left: 0; padding-bottom: calc(72px + env(safe-area-inset-bottom)); }
  .mobile-nav { display: block; }
  .page-header { padding: 16px; padding-top: calc(16px + env(safe-area-inset-top)); }
  .page-body { padding: 16px; }
  .vehicle-grid { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid-2 { grid-template-columns: 1fr; }
  .modal { max-width: 100%; border-radius: 14px 14px 0 0; max-height: 95vh; }
  .modal-overlay { align-items: flex-end; padding: 0; }
  .data-table { font-size: 13px; }
  .data-table th, .data-table td { padding: 8px 10px; }
  .page-header h1 { font-size: 24px; }
  .chat-wrap { height: calc(100vh - 200px); }
}