:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --border: #2a2d37;
  --text: #e4e4e7;
  --text-muted: #9ca3af;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --green: #22c55e;
  --green-bg: #1a2e1a;
  --green-border: #2d5a2d;
  --yellow: #eab308;
  --yellow-bg: #2e2a1a;
  --yellow-border: #5a4d2d;
  --blue-bg: #1a2035;
  --blue-border: #2d3d5a;
  --negative: #ef4444;
  --positive: #22c55e;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

.login-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  gap: 1rem;
}

/* Header & Nav */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

nav {
  display: flex;
  gap: 0.25rem;
}

.nav-link {
  padding: 0.375rem 0.75rem;
  border-radius: 6px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  transition: background 0.15s;
}
.nav-link:hover { background: var(--surface); color: var(--text); }
.nav-link.active { background: var(--surface); color: var(--text); }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}
.breadcrumb a { color: var(--primary); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { color: var(--text-muted); }

.prop-nav-card {
  display: block;
  padding: 0.75rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  text-decoration: none;
  margin-bottom: 0.5rem;
  transition: border-color 0.15s;
}
.prop-nav-card:hover { border-color: var(--primary); }
.prop-nav-card .prop-nav-title { font-weight: 600; }
.prop-nav-card .prop-nav-meta { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.25rem; }

h1 { font-size: 1.5rem; }
h2 { font-size: 1.25rem; margin-bottom: 0.75rem; }
h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
h4 { font-size: 0.95rem; margin: 1rem 0 0.5rem; color: var(--text-muted); }
p { color: var(--text-muted); margin-bottom: 0.75rem; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  font-size: 0.875rem;
  text-decoration: none;
}
.btn-primary { background: var(--primary); border-color: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-sm { padding: 0.25rem 0.5rem; font-size: 0.75rem; }

/* Badges */
.badge {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 500;
}
.badge-green { background: var(--green-bg); color: var(--green); border: 1px solid var(--green-border); }
.badge-yellow { background: var(--yellow-bg); color: var(--yellow); border: 1px solid var(--yellow-border); }
.badge-blue { background: var(--blue-bg); color: var(--primary); border: 1px solid var(--blue-border); }

/* Year Cards */
.year-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 0.5rem;
  cursor: pointer;
  transition: border-color 0.15s;
}
.year-card:hover { border-color: var(--primary); }
.year-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.year-label { font-size: 1.25rem; font-weight: 600; }
.year-card-meta { color: var(--text-muted); font-size: 0.85rem; margin-top: 0.25rem; }

/* Detail view */
.detail-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.detail-header h2 { margin-bottom: 0; }

.section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.sub-card {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
}
.sub-card-title { font-weight: 600; margin-bottom: 0.5rem; font-size: 0.9rem; }

/* Data tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.data-table th, .data-table td {
  padding: 0.375rem 0.5rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.data-table th { color: var(--text-muted); font-weight: 500; font-size: 0.8rem; }
.data-table td:last-child { text-align: right; }
.data-table th:last-child { text-align: right; }
.total-row td { font-weight: 600; border-top: 2px solid var(--border); }
.positive { color: var(--positive); }
.negative { color: var(--negative); }

/* Forms */
form {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

input[type="text"] {
  flex: 1;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.875rem;
}

/* Tables (token list) */
table { width: 100%; border-collapse: collapse; }
th, td {
  padding: 0.5rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.875rem;
}
th { color: var(--text-muted); font-weight: 500; }

code {
  display: block;
  padding: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.75rem;
  word-break: break-all;
  margin-bottom: 1rem;
}

#new-token-display {
  background: var(--green-bg);
  border: 1px solid var(--green-border);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1.5rem;
}

.loading { text-align: center; color: var(--text-muted); padding: 2rem; }

/* Drop Zone */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.drop-zone:hover { border-color: var(--primary); }
.drop-zone-active {
  border-color: var(--primary);
  background: var(--blue-bg);
}
.drop-zone-text p { margin-bottom: 0.25rem; }
.drop-hint { font-size: 0.8rem; color: var(--text-muted); }
.file-label { color: var(--primary); cursor: pointer; text-decoration: underline; }

/* Upload Queue */
.queue-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  gap: 0.5rem;
}
.queue-file-info { display: flex; align-items: center; gap: 0.5rem; min-width: 0; flex: 1; }
.queue-filename { font-size: 0.85rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.queue-size { font-size: 0.75rem; color: var(--text-muted); white-space: nowrap; }
.queue-controls { display: flex; align-items: center; gap: 0.5rem; }
.doc-type-select {
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  color: var(--text);
  font-size: 0.75rem;
}
.upload-actions { display: flex; gap: 0.5rem; margin-top: 0.75rem; }

/* Upload Status */
.upload-status {
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  font-size: 0.85rem;
  margin-top: 0.75rem;
}
.upload-success { background: var(--green-bg); color: var(--green); border: 1px solid var(--green-border); }
.upload-error { background: #2e1a1a; color: var(--negative); border: 1px solid #5a2d2d; }

/* Document Rows */
.doc-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  gap: 0.5rem;
}
.doc-info { display: flex; align-items: center; gap: 0.5rem; min-width: 0; flex: 1; }
.doc-filename { font-size: 0.85rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.doc-notes { font-size: 0.75rem; color: var(--text-muted); }
.doc-meta { display: flex; align-items: center; gap: 0.5rem; white-space: nowrap; font-size: 0.8rem; color: var(--text-muted); }
.doc-size { font-size: 0.75rem; color: var(--text-muted); }

/* Danger Button */
.btn-danger { color: var(--negative); border-color: #5a2d2d; }
.btn-danger:hover { background: #2e1a1a; }

/* Expense Controls */
.expense-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin: 0.5rem 0;
  flex-wrap: wrap;
}
.expense-year-filter {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
}
.expense-year-input {
  width: 5rem;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  color: var(--text);
  font-size: 0.85rem;
}
.expense-table-wrap { overflow-x: auto; }

/* Expense Cards */
.expense-card {
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 0.5rem;
  overflow: hidden;
}
.expense-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  gap: 0.5rem;
  transition: background 0.15s;
}
.expense-header:hover { background: var(--bg); }
.expense-header-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
  flex: 1;
}
.expense-header-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}
.expense-toggle { font-size: 0.7rem; color: var(--text-muted); width: 1rem; }
.expense-label { font-size: 0.85rem; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.expense-meta { font-size: 0.75rem; color: var(--text-muted); white-space: nowrap; }
.expense-amount { font-size: 0.85rem; font-weight: 600; }

.expense-detail {
  border-top: 1px solid var(--border);
  padding: 0.75rem;
  background: var(--bg);
}
.expense-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.expense-field-row {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.expense-field-row label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.expense-field-row input,
.expense-field-row select {
  padding: 0.3rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.85rem;
}

.expense-docs { margin-bottom: 0.75rem; }
.expense-docs-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
}
.expense-doc-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.3rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
}
.expense-doc-link { color: var(--primary); text-decoration: none; }
.expense-doc-link:hover { text-decoration: underline; }

.expense-actions { display: flex; gap: 0.5rem; }

@media (max-width: 600px) {
  .expense-fields { grid-template-columns: 1fr; }
  .expense-header { flex-wrap: wrap; }
}

/* Q&A Items */
.qa-item {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem;
  margin-bottom: 0.5rem;
  background: var(--bg);
}
.qa-question { margin-bottom: 0.4rem; line-height: 1.5; }
.qa-answer { color: var(--text-muted); line-height: 1.5; }
.qa-answer em { color: var(--text-muted); opacity: 0.6; }
.qa-meta { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.3rem; }

/* LLM Instructions */
.instructions-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}
.instructions-body h1 { font-size: 1.3rem; margin: 1.25rem 0 0.5rem; }
.instructions-body h2 { font-size: 1.15rem; margin: 1rem 0 0.5rem; }
.instructions-body h3 { font-size: 1rem; margin: 0.75rem 0 0.375rem; }
.instructions-body h4 { font-size: 0.9rem; margin: 0.75rem 0 0.375rem; color: var(--text); }
.instructions-body p { margin-bottom: 0.5rem; color: var(--text); line-height: 1.7; }
.instructions-body ul { margin: 0.25rem 0 0.75rem 1.5rem; }
.instructions-body li { margin-bottom: 0.25rem; line-height: 1.6; }
.instructions-body pre {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem;
  margin: 0.5rem 0;
  overflow-x: auto;
}
.instructions-body pre code {
  display: block;
  padding: 0;
  background: none;
  border: none;
  font-size: 0.8rem;
  word-break: normal;
}