:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f1f5f9;
  --text: #0f172a;
  --text-2: #475569;
  --text-3: #94a3b8;
  --primary: #2563eb;
  --primary-2: #1d4ed8;
  --accent: #7c3aed;
  --success: #059669;
  --warning: #d97706;
  --danger: #dc2626;
  --border: #e2e8f0;
  --shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --radius: 14px;
  --radius-sm: 10px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

#app { min-height: 100vh; display: flex; flex-direction: column; }

.layout { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.brand {
  display: flex; align-items: center; gap: 12px; padding: 0 8px 12px;
}
.brand-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white; display: grid; place-items: center; font-weight: 700; font-size: 18px;
}
.brand-text h1 { margin: 0; font-size: 18px; letter-spacing: -0.3px; }
.brand-text span { color: var(--text-3); font-size: 12px; }

.nav { display: flex; flex-direction: column; gap: 4px; }
.nav a, .nav button {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 12px; border-radius: var(--radius-sm);
  color: var(--text-2); text-decoration: none; font-size: 14px; font-weight: 500;
  background: transparent; border: none; cursor: pointer; text-align: left;
  transition: background .15s, color .15s;
}
.nav a:hover, .nav button:hover { background: var(--surface-2); color: var(--text); }
.nav a.active, .nav button.active { background: #eff6ff; color: var(--primary); }
.nav svg { width: 18px; height: 18px; opacity: .85; }

.user-card {
  margin-top: auto; background: var(--surface-2); border-radius: var(--radius-sm);
  padding: 14px; display: flex; align-items: center; gap: 12px;
}
.user-avatar {
  width: 38px; height: 38px; border-radius: 50%; color: white; font-weight: 600; font-size: 13px;
  display: grid; place-items: center;
}
.user-info { flex: 1; }
.user-info strong { display: block; font-size: 13px; }
.user-info span { font-size: 12px; color: var(--text-2); display: flex; align-items: center; gap: 6px; margin: 2px 0; }
.role-switch { font-size: 11px; color: var(--primary); cursor: pointer; display: inline-flex; align-items: center; gap: 4px; }
.role-switch:hover { text-decoration: underline; }

.main { padding: 28px 32px; overflow-y: auto; }
.topbar {
  display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px;
}
.topbar h2 { margin: 0; font-size: 24px; letter-spacing: -0.5px; }
.topbar p { margin: 4px 0 0; color: var(--text-2); font-size: 14px; }

.kpi-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 24px;
}
.kpi-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow);
}
.kpi-card .label { font-size: 13px; color: var(--text-2); margin-bottom: 8px; }
.kpi-card .value { font-size: 28px; font-weight: 700; letter-spacing: -0.5px; }
.kpi-card .change { font-size: 12px; color: var(--success); margin-top: 6px; font-weight: 500; }
.kpi-card .change.neutral { color: var(--text-2); }
.kpi-card .change.pending { color: var(--warning); }
.kpi-card .change.paid { color: var(--success); }

.grid-2 { display: grid; grid-template-columns: 1.2fr 1fr; gap: 20px; margin-bottom: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 24px; }

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
}
.card-header {
  padding: 18px 20px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.card-header h3 { margin: 0; font-size: 16px; }
.card-body { padding: 18px 20px; }

.pipeline {
  display: flex; align-items: stretch; gap: 10px;
}
.pipe-step {
  flex: 1; background: var(--surface-2); border-radius: var(--radius-sm);
  padding: 14px; text-align: center; position: relative;
}
.pipe-step::after {
  content: ''; position: absolute; right: -10px; top: 50%; transform: translateY(-50%);
  border: 8px solid transparent; border-left-color: var(--surface-2);
}
.pipe-step:last-child::after { display: none; }
.pipe-step.active { background: #eff6ff; }
.pipe-step.active::after { border-left-color: #eff6ff; }
.pipe-step .sum { font-size: 18px; font-weight: 700; color: var(--text); }
.pipe-step .name { font-size: 11px; color: var(--text-2); margin-top: 4px; text-transform: uppercase; letter-spacing: .3px; }
.pipe-step .count { font-size: 12px; color: var(--text-3); margin-top: 2px; }

.channel-bars { display: flex; flex-direction: column; gap: 14px; }
.bar-row { display: flex; align-items: center; gap: 12px; }
.bar-label { width: 100px; font-size: 13px; color: var(--text-2); }
.bar-track { flex: 1; height: 12px; background: var(--surface-2); border-radius: 6px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 6px; }
.bar-value { width: 80px; text-align: right; font-size: 13px; font-weight: 600; }

.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th { text-align: left; padding: 12px 14px; color: var(--text-2); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .4px; border-bottom: 1px solid var(--border); }
.table td { padding: 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: #fafafa; cursor: pointer; }
.badge {
  display: inline-flex; align-items: center; gap: 6px; padding: 5px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 600;
}
.badge.blue { background: #eff6ff; color: var(--primary); }
.badge.purple { background: #f3e8ff; color: var(--accent); }
.badge.green { background: #ecfdf5; color: var(--success); }
.badge.orange { background: #fff7ed; color: var(--warning); }
.badge.red { background: #fef2f2; color: var(--danger); }
.badge.gray { background: var(--surface-2); color: var(--text-2); }

.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 600; border: 1px solid transparent; cursor: pointer; transition: all .15s;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-2); }
.btn-outline { background: white; border-color: var(--border); color: var(--text); }
.btn-outline:hover { background: var(--surface-2); }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { background: #047857; }
.btn-danger { background: var(--danger); color: white; }
.btn-sm { padding: 7px 12px; font-size: 13px; }

.empty { text-align: center; padding: 40px 20px; color: var(--text-2); }
.empty h4 { margin: 0 0 6px; }

.order-detail { display: grid; grid-template-columns: 1fr 360px; gap: 22px; }
.customer-360 { display: flex; flex-direction: column; gap: 16px; }
.profile-header {
  display: flex; align-items: center; gap: 16px;
}
.profile-avatar {
  width: 56px; height: 56px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white; display: grid; place-items: center; font-size: 20px; font-weight: 700;
}
.profile-header h3 { margin: 0; }
.profile-header p { margin: 2px 0 0; color: var(--text-2); font-size: 14px; }
.meta-list { display: grid; gap: 10px; }
.meta-item { display: flex; justify-content: space-between; font-size: 14px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.meta-item span:first-child { color: var(--text-2); }

.offer-editor { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.pdf-preview {
  background: #f8fafc; border: 1px dashed var(--border); border-radius: var(--radius); padding: 28px;
  min-height: 520px;
}
.pdf-page {
  background: white; max-width: 420px; margin: 0 auto; min-height: 560px; padding: 34px 28px;
  box-shadow: var(--shadow-lg); border-radius: 4px;
}
.pdf-page h4 { margin: 0 0 8px; font-size: 18px; }
.pdf-page .pdf-sub { color: var(--text-2); font-size: 13px; margin-bottom: 22px; }
.pdf-table { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 16px; }
.pdf-table th, .pdf-table td { padding: 9px 8px; border-bottom: 1px solid var(--border); text-align: left; }
.pdf-table .right { text-align: right; }
.pdf-totals { margin-top: 18px; text-align: right; font-size: 14px; }
.pdf-totals strong { font-size: 18px; color: var(--primary); }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--text-2); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: 14px; font-family: inherit; background: white;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.08); }

.line-item { display: grid; grid-template-columns: 1fr 90px 110px 110px 40px; gap: 10px; align-items: end; margin-bottom: 10px; }
.line-item .product-select { font-size: 13px; }

.approval-card {
  border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 16px; margin-bottom: 12px;
  background: white; display: flex; justify-content: space-between; gap: 16px;
}
.approval-card:hover { border-color: var(--primary); }
.approval-actions { display: flex; gap: 8px; align-items: flex-start; }

.accounting-flow {
  display: flex; align-items: center; gap: 16px; justify-content: center; padding: 20px;
}
.flow-node {
  background: var(--surface-2); border-radius: var(--radius-sm); padding: 16px 20px; text-align: center; min-width: 130px;
}
.flow-node.primary { background: #eff6ff; }
.flow-node .icon { font-size: 24px; margin-bottom: 6px; }
.flow-node .title { font-weight: 600; font-size: 14px; }
.flow-node .meta { font-size: 12px; color: var(--text-2); }
.flow-arrow { color: var(--text-3); font-size: 22px; }

.toast {
  position: fixed; bottom: 22px; right: 22px; background: var(--text); color: white;
  padding: 14px 18px; border-radius: var(--radius-sm); box-shadow: var(--shadow-lg);
  font-size: 14px; z-index: 100; transform: translateY(120%); transition: transform .25s;
}
.toast.show { transform: translateY(0); }

.hero-banner {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white; border-radius: var(--radius); padding: 22px 26px;
  margin-bottom: 24px; display: flex; align-items: center; justify-content: space-between;
  box-shadow: var(--shadow-lg); gap: 20px;
}
.hero-banner h3 { margin: 0; font-size: 18px; }
.hero-banner p { margin: 6px 0 0; opacity: .9; font-size: 14px; max-width: 560px; }
.hero-banner .btn { background: white; color: var(--primary); border: none; white-space: nowrap; }
.hero-banner .btn:hover { background: #f1f5f9; }
@media (max-width: 700px) {
  .hero-banner { flex-direction: column; align-items: flex-start; }
  .hero-banner .btn { width: 100%; }
}

.role-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .4px;
  padding: 4px 10px; border-radius: 999px; background: #eff6ff; color: var(--primary);
}
.role-badge.manager { background: #f3e8ff; color: var(--accent); }
.role-badge.accounting { background: #ecfdf5; color: var(--success); }

.pdf-watermark {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%) rotate(-35deg);
  font-size: 42px; font-weight: 800; color: rgba(37,99,235,.08); pointer-events: none;
  text-transform: uppercase; letter-spacing: 4px;
}
.pdf-preview { position: relative; }

.modal-backdrop {
  position: fixed; inset: 0; background: rgba(15,23,42,.45); display: grid; place-items: center; z-index: 50;
}
.modal {
  background: white; border-radius: var(--radius); width: min(560px, 92vw); max-height: 86vh; overflow-y: auto;
  box-shadow: var(--shadow-lg);
}
.modal-header { padding: 18px 22px; border-bottom: 1px solid var(--border); }
.modal-body { padding: 22px; }
.modal-footer { padding: 14px 22px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

.activity-list { display: flex; flex-direction: column; gap: 12px; }
.activity {
  display: flex; gap: 12px; align-items: flex-start; font-size: 13px;
}
.activity-dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 6px; flex-shrink: 0; }
.activity-dot.offer { background: var(--primary); }
.activity-dot.order { background: var(--warning); }
.activity-dot.invoice { background: var(--success); }
.activity-dot.approval { background: var(--accent); }
.activity time { color: var(--text-3); font-size: 11px; margin-left: 6px; }

@media (max-width: 1100px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-2, .grid-3, .order-detail, .offer-editor { grid-template-columns: 1fr; }
}