/* LV Transaction Desk — Design System */

:root {
  --lvtd-bg: #ffffff;
  --lvtd-text: #1a1a1a;
  --lvtd-text-secondary: #6b7280;
  --lvtd-border: #e5e7eb;
  --lvtd-blue: #2563eb;
  --lvtd-blue-hover: #1d4ed8;
  --lvtd-green: #16a34a;
  --lvtd-red: #dc2626;
  --lvtd-dark-red: #991b1b;
  --lvtd-yellow: #ca8a04;
  --lvtd-gray: #9ca3af;
  --lvtd-radius: 8px;
  --lvtd-font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --lvtd-sidebar: 240px;
  --lvtd-header: 56px;
}

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

.lvtd-app {
  font-family: var(--lvtd-font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--lvtd-text);
  background: var(--lvtd-bg);
  min-height: 100vh;
}

.lvtd-app a { color: var(--lvtd-blue); text-decoration: none; }
.lvtd-app a:hover { text-decoration: underline; }

/* Layout */
.lvtd-layout { display: flex; min-height: 100vh; }
.lvtd-sidebar {
  width: var(--lvtd-sidebar);
  border-right: 1px solid var(--lvtd-border);
  padding: 24px 16px;
  flex-shrink: 0;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  background: var(--lvtd-bg);
  z-index: 100;
}
.lvtd-main {
  flex: 1;
  margin-left: var(--lvtd-sidebar);
  min-width: 0;
}
.lvtd-header {
  height: var(--lvtd-header);
  border-bottom: 1px solid var(--lvtd-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  position: sticky;
  top: 0;
  background: var(--lvtd-bg);
  z-index: 50;
}
.lvtd-content { padding: 32px; max-width: 1200px; }

.lvtd-logo {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 32px;
  color: var(--lvtd-text);
}
.lvtd-logo span { color: var(--lvtd-text-secondary); font-weight: 400; }

.lvtd-nav a {
  display: block;
  padding: 10px 12px;
  border-radius: var(--lvtd-radius);
  color: var(--lvtd-text-secondary);
  font-weight: 500;
  margin-bottom: 2px;
  text-decoration: none;
}
.lvtd-nav a:hover { background: #f9fafb; color: var(--lvtd-text); text-decoration: none; }
.lvtd-nav a.active { background: #eff6ff; color: var(--lvtd-blue); }

.lvtd-user-menu { display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--lvtd-text-secondary); }

/* Buttons */
.lvtd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 16px;
  border-radius: var(--lvtd-radius);
  font-family: var(--lvtd-font);
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--lvtd-border);
  background: var(--lvtd-bg);
  color: var(--lvtd-text);
  cursor: pointer;
  min-height: 44px;
  transition: background 0.15s, border-color 0.15s;
}
.lvtd-btn:hover { background: #f9fafb; }
.lvtd-btn-primary { background: var(--lvtd-blue); color: #fff; border-color: var(--lvtd-blue); }
.lvtd-btn-primary:hover { background: var(--lvtd-blue-hover); border-color: var(--lvtd-blue-hover); }
.lvtd-btn-success { background: var(--lvtd-green); color: #fff; border-color: var(--lvtd-green); }
.lvtd-btn-danger { background: var(--lvtd-red); color: #fff; border-color: var(--lvtd-red); }
.lvtd-btn-sm { padding: 6px 12px; min-height: 36px; font-size: 13px; }
.lvtd-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Forms */
.lvtd-form-group { margin-bottom: 20px; }
.lvtd-label { display: block; font-weight: 500; margin-bottom: 6px; font-size: 13px; }
.lvtd-input, .lvtd-select, .lvtd-textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--lvtd-border);
  border-radius: var(--lvtd-radius);
  font-family: var(--lvtd-font);
  font-size: 14px;
  min-height: 44px;
  background: var(--lvtd-bg);
}
.lvtd-input:focus, .lvtd-select:focus, .lvtd-textarea:focus {
  outline: none;
  border-color: var(--lvtd-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}
.lvtd-textarea { min-height: 100px; resize: vertical; }

/* Cards & Sections */
.lvtd-page-title { font-size: 24px; font-weight: 600; letter-spacing: -0.02em; margin: 0 0 8px; }
.lvtd-page-subtitle { color: var(--lvtd-text-secondary); margin: 0 0 32px; }
.lvtd-section { margin-bottom: 40px; }
.lvtd-section-title { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--lvtd-text-secondary); margin: 0 0 16px; }
.lvtd-card { border: 1px solid var(--lvtd-border); border-radius: var(--lvtd-radius); padding: 20px; background: var(--lvtd-bg); }

/* Dashboard lists */
.lvtd-list { list-style: none; padding: 0; margin: 0; }
.lvtd-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--lvtd-border);
  cursor: pointer;
  gap: 16px;
}
.lvtd-list-item:last-child { border-bottom: none; }
.lvtd-list-item:hover { opacity: 0.8; }
.lvtd-list-primary { font-weight: 500; }
.lvtd-list-secondary { font-size: 13px; color: var(--lvtd-text-secondary); }

/* Table */
.lvtd-toolbar { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; align-items: center; }
.lvtd-toolbar .lvtd-input { max-width: 280px; }
.lvtd-table-wrap { overflow-x: auto; border: 1px solid var(--lvtd-border); border-radius: var(--lvtd-radius); }
.lvtd-table { width: 100%; border-collapse: collapse; }
.lvtd-table th, .lvtd-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--lvtd-border); }
.lvtd-table th { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; color: var(--lvtd-text-secondary); background: #fafafa; }
.lvtd-table tr:last-child td { border-bottom: none; }
.lvtd-table tr:hover td { background: #fafafa; cursor: pointer; }
.lvtd-table input[type="checkbox"] { width: 18px; height: 18px; }

/* Status badges */
.lvtd-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
}
.lvtd-badge-missing { background: #fef2f2; color: var(--lvtd-red); }
.lvtd-badge-uploaded { background: #eff6ff; color: var(--lvtd-blue); }
.lvtd-badge-pending_review { background: #fefce8; color: var(--lvtd-yellow); }
.lvtd-badge-approved { background: #f0fdf4; color: var(--lvtd-green); }
.lvtd-badge-rejected { background: #fef2f2; color: var(--lvtd-dark-red); }
.lvtd-badge-optional { background: #f3f4f6; color: var(--lvtd-gray); }
.lvtd-badge-active { background: #eff6ff; color: var(--lvtd-blue); }
.lvtd-badge-archived { background: #f3f4f6; color: var(--lvtd-gray); }

/* Progress */
.lvtd-progress { display: flex; align-items: center; gap: 8px; }
.lvtd-progress-bar { flex: 1; height: 6px; background: var(--lvtd-border); border-radius: 3px; overflow: hidden; max-width: 80px; }
.lvtd-progress-fill { height: 100%; background: var(--lvtd-green); border-radius: 3px; }
.lvtd-progress-text { font-size: 13px; color: var(--lvtd-text-secondary); min-width: 36px; }

/* Tabs */
.lvtd-tabs { display: flex; gap: 0; border-bottom: 1px solid var(--lvtd-border); margin-bottom: 24px; overflow-x: auto; }
.lvtd-tab {
  padding: 12px 20px;
  font-weight: 500;
  color: var(--lvtd-text-secondary);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  background: none;
  border-top: none; border-left: none; border-right: none;
  font-family: var(--lvtd-font);
  font-size: 14px;
}
.lvtd-tab:hover { color: var(--lvtd-text); }
.lvtd-tab.active { color: var(--lvtd-blue); border-bottom-color: var(--lvtd-blue); }

/* Detail grid */
.lvtd-detail-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.lvtd-detail-field label { display: block; font-size: 12px; font-weight: 500; color: var(--lvtd-text-secondary); margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.04em; }
.lvtd-detail-field p { margin: 0; font-size: 15px; }

/* Documents */
.lvtd-doc-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border: 1px solid var(--lvtd-border);
  border-radius: var(--lvtd-radius);
  margin-bottom: 8px;
  gap: 16px;
  flex-wrap: wrap;
}
.lvtd-doc-info { flex: 1; min-width: 200px; }
.lvtd-doc-name { font-weight: 500; margin-bottom: 4px; }
.lvtd-doc-meta { font-size: 13px; color: var(--lvtd-text-secondary); }
.lvtd-doc-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.lvtd-dropzone {
  border: 2px dashed var(--lvtd-border);
  border-radius: var(--lvtd-radius);
  padding: 32px;
  text-align: center;
  color: var(--lvtd-text-secondary);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.lvtd-dropzone:hover, .lvtd-dropzone.dragover { border-color: var(--lvtd-blue); background: #eff6ff; }

/* Activity */
.lvtd-activity-item { padding: 12px 0; border-bottom: 1px solid var(--lvtd-border); }
.lvtd-activity-item:last-child { border-bottom: none; }
.lvtd-activity-action { font-weight: 500; }
.lvtd-activity-meta { font-size: 13px; color: var(--lvtd-text-secondary); }

/* Modal */
.lvtd-modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; padding: 16px;
}
.lvtd-modal {
  background: var(--lvtd-bg);
  border-radius: var(--lvtd-radius);
  padding: 24px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
}
.lvtd-modal-title { font-size: 18px; font-weight: 600; margin: 0 0 20px; }
.lvtd-modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 24px; }

/* Login prompt */
.lvtd-login-prompt { min-height: 60vh; display: flex; align-items: center; justify-content: center; padding: 32px; }
.lvtd-login-box { text-align: center; max-width: 400px; }
.lvtd-login-box h1 { font-size: 24px; margin-bottom: 8px; }
.lvtd-login-box p { color: var(--lvtd-text-secondary); margin-bottom: 24px; }

/* Empty state */
.lvtd-empty { text-align: center; padding: 48px 24px; color: var(--lvtd-text-secondary); }

/* Pagination */
.lvtd-pagination { display: flex; gap: 8px; margin-top: 20px; align-items: center; }
.lvtd-pagination span { color: var(--lvtd-text-secondary); font-size: 13px; }

/* Alerts */
.lvtd-alert { padding: 12px 16px; border-radius: var(--lvtd-radius); margin-bottom: 16px; font-size: 14px; }
.lvtd-alert-warning { background: #fefce8; color: #854d0e; border: 1px solid #fde68a; }
.lvtd-alert-error { background: #fef2f2; color: var(--lvtd-dark-red); border: 1px solid #fecaca; }
.lvtd-alert-success { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }

/* Loading */
.lvtd-loading { text-align: center; padding: 48px; color: var(--lvtd-text-secondary); }

/* PDF preview */
.lvtd-preview-frame { width: 100%; height: 70vh; border: 1px solid var(--lvtd-border); border-radius: var(--lvtd-radius); }

/* Mobile */
@media (max-width: 768px) {
  .lvtd-sidebar {
    width: 100%;
    position: relative;
    border-right: none;
    border-bottom: 1px solid var(--lvtd-border);
    padding: 16px;
  }
  .lvtd-main { margin-left: 0; }
  .lvtd-layout { flex-direction: column; }
  .lvtd-nav { display: flex; gap: 4px; overflow-x: auto; }
  .lvtd-nav a { white-space: nowrap; margin-bottom: 0; }
  .lvtd-logo { margin-bottom: 16px; }
  .lvtd-content { padding: 16px; }
  .lvtd-header { padding: 0 16px; }
  .lvtd-toolbar { flex-direction: column; align-items: stretch; }
  .lvtd-toolbar .lvtd-input { max-width: none; }
  .lvtd-doc-row { flex-direction: column; align-items: flex-start; }
  .lvtd-doc-actions { width: 100%; }
  .lvtd-doc-actions .lvtd-btn { flex: 1; }
}

.lvtd-portal-body { margin: 0; background: var(--lvtd-bg); }
.lvtd-portal-header { text-align: center; padding: 32px 16px 0; }
.lvtd-portal-header h1 { font-size: 20px; font-weight: 600; margin: 0 0 4px; }
.lvtd-portal-header p { color: var(--lvtd-text-secondary); margin: 0; }