/* C3 Expense Robot UI: C3PO design standards (navy/blue, Inter, light theme). */

:root {
  --brand-primary: #1B2559;
  --brand-accent: #3B82F6;
  --brand-accent-hover: #2563EB;
  --brand-accent-light: #EFF6FF;
  --n-50: #FAFAFA; --n-100: #F5F5F5; --n-200: #E5E5E5; --n-300: #D4D4D4;
  --n-400: #A3A3A3; --n-500: #737373; --n-700: #404040; --n-900: #171717;
  --success: #16A34A; --success-bg: #F0FDF4;
  --warning: #D97706; --warning-bg: #FFFBEB;
  --danger: #DC2626; --danger-bg: #FEF2F2;
  --info: #2563EB; --info-bg: #EFF6FF;
  --neutral-status: #6B7280; --neutral-status-bg: #F3F4F6;
  --radius-sm: 6px; --radius-md: 8px; --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --sidebar-w: 240px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--n-50);
  color: var(--n-900);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--brand-accent); text-decoration: none; }
a:hover { color: var(--brand-accent-hover); }
.muted, .note { color: var(--n-500); font-size: 12.5px; }
.hidden { display: none !important; }

/* ---------- shell ---------- */
.ramp-layout { display: flex; min-height: 100vh; }

.ramp-sidebar {
  width: var(--sidebar-w); flex-shrink: 0; background: #fff;
  border-right: 1px solid var(--n-200);
  display: flex; flex-direction: column; padding: 16px 12px;
  position: sticky; top: 0; height: 100vh; box-sizing: border-box;
}
.ramp-brand { display: flex; align-items: center; gap: 10px; padding: 4px 8px 20px; }
.ramp-brand-mark {
  width: 32px; height: 32px; border-radius: var(--radius-sm);
  background: var(--brand-primary); color: #fff; font-weight: 700; font-size: 13px;
  display: flex; align-items: center; justify-content: center;
}
.ramp-brand-name { font-weight: 600; font-size: 14px; color: var(--brand-primary); }
.ramp-brand-sub { font-size: 11px; color: var(--n-500); }

.ramp-nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.ramp-nav a {
  display: flex; align-items: center; gap: 10px; padding: 9px 12px;
  border-radius: var(--radius-sm); color: var(--n-700); font-weight: 500; font-size: 13.5px;
  transition: background .12s;
}
.ramp-nav a:hover { background: var(--n-100); }
.ramp-nav a.active { background: var(--brand-accent-light); color: var(--brand-accent-hover); }
.ramp-nav-ico { width: 18px; text-align: center; font-size: 14px; opacity: .7; }

.ramp-sidebar-foot { padding: 12px 8px 4px; border-top: 1px solid var(--n-200); margin-top: 8px; }
.ramp-sidebar-foot .who { font-weight: 600; font-size: 12.5px; margin-bottom: 2px; }
.ramp-sidebar-foot .org { font-size: 11px; color: var(--n-400); margin-bottom: 8px; }
.ramp-sidebar-foot form { margin: 0; }
.ramp-sidebar-foot button.link, .ramp-sidebar-foot a {
  background: none; border: none; padding: 0; color: var(--n-500); font-size: 13px;
  font-family: inherit; cursor: pointer;
}
.ramp-sidebar-foot button.link:hover, .ramp-sidebar-foot a:hover { color: var(--brand-accent); }

.ramp-main { flex: 1; min-width: 0; display: flex; flex-direction: column; background: #fff; }
.ramp-run-bar {
  padding: 10px 32px; background: var(--info-bg); border-bottom: 1px solid #BFDBFE;
  color: var(--info); font-size: 13px; display: none;
}
.ramp-run-bar.show { display: block; }
.ramp-run-bar.error { background: var(--danger-bg); border-color: #FECACA; color: var(--danger); }
.ramp-run-bar.done { background: var(--success-bg); border-color: #BBF7D0; color: var(--success); }

.ramp-page { flex: 1; padding: 28px 32px 48px; max-width: 1180px; width: 100%; }

/* ---------- page head ---------- */
.ramp-head-row { display: flex; align-items: flex-start; gap: 16px; }
.ramp-page-head { margin-bottom: 24px; }
.ramp-eyebrow { font-size: 12px; color: var(--n-500); margin-bottom: 4px; }
.ramp-page-head h1 {
  margin: 0; font-size: 26px; font-weight: 700; letter-spacing: -0.02em; color: var(--brand-primary);
}
.ramp-page-head .sub { margin-top: 6px; color: var(--n-500); font-size: 14px; }
.ramp-page-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font); font-size: 13.5px; font-weight: 600;
  padding: 9px 16px; border-radius: var(--radius-sm); border: 1px solid transparent;
  cursor: pointer; transition: all .12s ease; white-space: nowrap; text-decoration: none;
}
.btn:focus-visible { outline: 2px solid var(--brand-accent); outline-offset: 2px; }
.btn-primary { background: var(--brand-accent); color: #fff; border-color: var(--brand-accent-hover); }
.btn-primary:hover:not(:disabled) { background: var(--brand-accent-hover); color: #fff; }
.btn-secondary { background: #fff; color: var(--n-700); border-color: var(--n-200); }
.btn-secondary:hover:not(:disabled) { border-color: var(--n-300); background: var(--n-50); }
.btn-danger { background: #fff; color: var(--danger); border-color: #FECACA; }
.btn-danger:hover:not(:disabled) { background: var(--danger-bg); }
.btn-lg { font-size: 14.5px; padding: 12px 22px; }
.btn-sm { font-size: 12.5px; padding: 6px 12px; }
.btn:disabled { background: var(--n-200); color: var(--n-400); border-color: transparent; cursor: not-allowed; }
.btn .spin { display: none; }
.btn.loading .spin { display: inline-block; }
.btn.loading .label { opacity: .7; }
.btn.gmail { background: #d44638; color: #fff; border-color: #b73a2d; }
.btn.outlook { background: #0a6cff; color: #fff; border-color: #0858d6; }

/* ---------- badges / pills ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11.5px; font-weight: 600; border-radius: 99px; padding: 2.5px 9px;
}
.badge-high { color: var(--danger); background: var(--danger-bg); }
.badge-normal { color: var(--warning); background: var(--warning-bg); }
.badge-low { color: var(--neutral-status); background: var(--neutral-status-bg); }
.badge-info { color: var(--info); background: var(--info-bg); }
.badge-success { color: var(--success); background: var(--success-bg); }
.badge-cat { color: var(--n-500); background: var(--n-100); font-weight: 500; }

/* ---------- cards ---------- */
.card { background: #fff; border: 1px solid var(--n-200); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
.card-pad { padding: 20px 22px; }

/* triage queue list */
.cards { list-style: none; padding: 0; margin: 0; border: 1px solid var(--n-200); border-radius: var(--radius-md); overflow: hidden; background: #fff; }
.cards .empty-row { padding: 40px 24px; text-align: center; color: var(--n-500); }
.card-item {
  display: block; padding: 14px 18px; cursor: pointer;
  border-bottom: 1px solid var(--n-100); transition: background .1s ease;
}
.card-item:last-child { border-bottom: 0; }
.card-item:hover, .card-item.active { background: var(--brand-accent-light); }
.card-item .row1 { display: flex; align-items: center; gap: 10px; }
.card-item .subject { font-weight: 600; font-size: 13.5px; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card-item .when { color: var(--n-400); font-size: 12px; flex-shrink: 0; }
.card-item .row2 { display: flex; align-items: center; gap: 8px; margin-top: 6px; flex-wrap: wrap; }
.card-item .summary { color: var(--n-500); font-size: 12.5px; }
.draft-chip { color: var(--brand-accent-hover); background: var(--brand-accent-light); font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 99px; }

/* ---------- forms ---------- */
label.field { display: block; margin-bottom: 14px; }
label.field .lbl { display: block; font-size: 12.5px; font-weight: 600; color: var(--n-700); margin-bottom: 5px; }
input[type=text], input[type=email], input[type=password], select, textarea {
  width: 100%; font-family: var(--font); font-size: 13.5px; color: var(--n-900);
  background: #fff; border: 1px solid var(--n-200); border-radius: var(--radius-sm);
  padding: 9px 12px; transition: border .12s ease;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--brand-accent); box-shadow: 0 0 0 3px rgba(59,130,246,.13); }
textarea { resize: vertical; min-height: 120px; line-height: 1.6; }
textarea.draft-body { min-height: 260px; font-size: 13.5px; }

/* ---------- banners / alerts ---------- */
.banner { padding: 10px 14px; border-radius: var(--radius-md); font-size: 13px; margin-bottom: 16px; }
.banner.error { background: var(--danger-bg); color: var(--danger); border: 1px solid #FECACA; }
.banner.warn { background: var(--warning-bg); color: var(--warning); border: 1px solid #FDE68A; }
.banner.ok { background: var(--success-bg); color: var(--success); border: 1px solid #BBF7D0; }
.confirm-flag { background: var(--warning-bg); color: var(--warning); border: 1px solid #FDE68A; padding: 8px 12px; border-radius: var(--radius-sm); font-size: 12.5px; margin-bottom: 12px; }
.voice-state { padding: 8px 12px; border-radius: var(--radius-sm); font-size: 12.5px; margin-bottom: 12px; }
.voice-state-revised { background: var(--n-100, #F3F4F6); color: var(--n-600, #4B5563); border: 1px solid var(--n-200, #E5E7EB); }
.voice-state-flagged { background: var(--warning-bg); color: var(--warning); border: 1px solid #FDE68A; }

/* ---------- spinner ---------- */
.spin { width: 14px; height: 14px; border-radius: 99px; border: 2px solid rgba(255,255,255,.4); border-top-color: #fff; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- activity feed ---------- */
.ramp-feed { display: flex; flex-direction: column; gap: 10px; }
.ramp-feed-item { border: 1px solid var(--n-200); border-radius: var(--radius-md); background: #fff; }
.ramp-feed-head { display: flex; align-items: flex-start; gap: 12px; padding: 14px 16px; }
.ramp-feed-icon { width: 32px; height: 32px; border-radius: 50%; background: var(--n-50); display: flex; align-items: center; justify-content: center; font-size: 14px; flex-shrink: 0; }
.ramp-feed-body { flex: 1; min-width: 0; }
.ramp-feed-title { font-weight: 600; font-size: 14px; }
.ramp-feed-summary { font-size: 13px; color: var(--n-500); margin-top: 3px; word-break: break-word; }
.ramp-feed-time { font-size: 12px; color: var(--n-400); white-space: nowrap; }

/* ---------- table ---------- */
.ramp-table-wrap { border: 1px solid var(--n-200); border-radius: var(--radius-md); overflow: hidden; }
.ramp-table { width: 100%; border-collapse: collapse; }
.ramp-table th { text-align: left; padding: 10px 16px; font-size: 11.5px; font-weight: 600; color: var(--n-500); text-transform: uppercase; letter-spacing: .03em; background: var(--n-50); border-bottom: 1px solid var(--n-200); }
.ramp-table td { padding: 14px 16px; border-bottom: 1px solid var(--n-200); vertical-align: middle; }
.ramp-table tr:last-child td { border-bottom: none; }
.ramp-table tr.clickable { cursor: pointer; }
.ramp-table tr.clickable:hover { background: var(--brand-accent-light); }
.ramp-row-title { font-weight: 600; font-size: 14px; }
.ramp-row-sub { font-size: 12.5px; color: var(--n-500); margin-top: 2px; }

/* ---------- drawer ---------- */
.ramp-drawer-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.25); z-index: 200; opacity: 0; pointer-events: none; transition: opacity .2s; }
.ramp-drawer-backdrop.open { opacity: 1; pointer-events: auto; }
.ramp-drawer {
  position: fixed; top: 0; right: 0; width: min(620px, 100vw); height: 100vh; background: #fff;
  box-shadow: -4px 0 24px rgba(0,0,0,.12); z-index: 201; transform: translateX(100%);
  transition: transform .22s ease; display: flex; flex-direction: column;
}
.ramp-drawer.open { transform: translateX(0); }
.ramp-drawer-head { padding: 16px 20px; border-bottom: 1px solid var(--n-200); display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.ramp-drawer-head h2 { margin: 0; font-size: 17px; font-weight: 600; color: var(--brand-primary); }
.ramp-drawer-body { flex: 1; overflow: auto; padding: 16px 20px; min-width: 0; }
.ramp-drawer-body h3 { margin: 0 0 4px; color: var(--brand-primary); font-size: 16px; }
.draft-meta { color: var(--n-500); font-size: 12.5px; margin-bottom: 12px; }
.draft-actions { display: flex; gap: 10px; margin-top: 14px; align-items: center; flex-wrap: wrap; }

/* ---------- empty ---------- */
.ramp-empty { text-align: center; padding: 60px 24px; color: var(--n-500); }
.ramp-empty .big { font-size: 36px; margin-bottom: 12px; }
.ramp-empty h3 { color: var(--n-700); margin: 0 0 6px; }

/* ---------- toast ---------- */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(8px);
  background: var(--n-900); color: #fff; font-size: 13px; padding: 10px 18px;
  border-radius: 8px; box-shadow: var(--shadow-lg); opacity: 0; pointer-events: none;
  transition: all .2s ease; z-index: 300;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- settings ---------- */
.settings-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(330px, 100%), 1fr)); gap: 20px; align-items: start; }
.settings-card { padding: 20px 22px; }
.settings-card h3 { margin: 0 0 4px; font-size: 15px; color: var(--brand-primary); }
.settings-card .sub { font-size: 12.5px; color: var(--n-500); margin-bottom: 14px; }
pre.voice { white-space: pre-wrap; background: var(--n-50); padding: 12px; border-radius: var(--radius-sm); border: 1px solid var(--n-200); font-size: 12.5px; }
#blacklist { list-style: none; padding: 0; margin: 0 0 12px; }
#blacklist li { padding: 6px 0; border-bottom: 1px solid var(--n-100); font-size: 13px; }

/* ---------- login ---------- */
.centered { display: flex; min-height: 100vh; align-items: center; justify-content: center; padding: 24px; }
.login { max-width: 420px; width: 100%; text-align: center; padding: 32px; }
.login h1 { color: var(--brand-primary); margin: 0 0 8px; }
.provider-buttons { display: flex; flex-direction: column; gap: 10px; margin: 22px 0; }
.fineprint { font-size: 12px; color: var(--n-500); }

/* ---------- compose chat ---------- */
.compose-chat { max-width: 760px; display: flex; flex-direction: column; gap: 14px; }
.chat-log { display: flex; flex-direction: column; gap: 14px; min-height: 200px; }
.chat-empty { color: var(--n-500); font-size: 13.5px; background: var(--n-50); border: 1px solid var(--n-200); border-radius: var(--radius-md); padding: 18px 20px; }
.chat-bubble { max-width: 80%; padding: 10px 14px; border-radius: var(--radius-md); font-size: 13.5px; line-height: 1.55; }
.chat-bubble .chat-role { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .03em; margin-bottom: 4px; opacity: .7; }
.chat-bubble .chat-text { white-space: pre-wrap; word-break: break-word; }
.chat-user { align-self: flex-end; background: var(--brand-accent); color: #fff; }
.chat-assistant { align-self: flex-start; background: var(--n-50); border: 1px solid var(--n-200); color: var(--n-900); }
.draft-card { align-self: stretch; }
.draft-card .field { margin-bottom: 10px; }
.draft-card h3 { margin: 0 0 4px; color: var(--brand-primary); font-size: 16px; }
.chat-input { display: flex; gap: 10px; align-items: flex-end; }
.chat-input textarea { flex: 1; min-height: 52px; }
.chat-input .btn { flex-shrink: 0; }

/* ---------- expense robot: folder picker / review / export ---------- */
.folder-tree { border: 1px solid var(--n-200); border-radius: var(--radius-sm); padding: 8px 10px; margin-bottom: 12px; max-height: 260px; overflow: auto; font-size: 13px; }
.folder-tree ul { list-style: none; margin: 0; padding-left: 16px; }
.folder-tree > ul { padding-left: 0; }
.folder-tree li { padding: 1px 0; }
.folder-tree button { background: none; border: none; cursor: pointer; font: inherit; color: var(--n-700); padding: 2px 5px; border-radius: 4px; }
.folder-tree button:hover { background: var(--brand-accent-light); color: var(--brand-accent-hover); }
.folder-tree .twisty { width: 20px; color: var(--n-400); }
.stat-table td.num { text-align: right; font-weight: 600; font-variant-numeric: tabular-nums; }
.amount-cell { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.evidence-frame { width: 100%; height: 420px; border: 1px solid var(--n-200); border-radius: var(--radius-sm); margin-top: 12px; background: var(--n-50); }
.pager-row { display: flex; align-items: center; gap: 10px; margin-top: 14px; }
.dup-actions { display: inline-flex; gap: 6px; margin-left: 8px; }

/* ---------- pre-MVP visibility tabs (inbox/expenses/receipts/reports) ---------- */
.ramp-meta { display: grid; grid-template-columns: 120px 1fr; gap: 4px 12px; margin: 0 0 14px; font-size: 13px; }
.ramp-meta dt { color: var(--n-500); }
.ramp-meta dd { margin: 0; color: var(--n-900); word-break: break-word; }
.ramp-evidence-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 6px 0; border-bottom: 1px solid var(--n-100); font-size: 12.5px; }
.btn.disabled, a.btn[aria-disabled="true"] { opacity: 0.5; pointer-events: none; cursor: default; }

/* ---------- mobile ---------- */
@media (max-width: 768px) {
  .ramp-layout { display: block; }
  .ramp-sidebar {
    position: fixed; bottom: 0; left: 0; right: 0; top: auto; z-index: 40; width: 100%;
    height: auto; flex-direction: row; align-items: center; padding: 5px 8px;
    border-right: 0; border-top: 1px solid var(--n-200); box-shadow: 0 -2px 10px rgba(0,0,0,.05);
  }
  .ramp-brand, .ramp-sidebar-foot { display: none; }
  .ramp-nav { flex-direction: row; justify-content: space-around; gap: 4px; }
  .ramp-nav a { flex-direction: column; gap: 2px; font-size: 10.5px; min-width: 56px; align-items: center; }
  .ramp-nav-ico { font-size: 17px; }
  .ramp-page { padding: 18px 16px 96px; max-width: none; }
  .ramp-drawer { width: 100vw; }
  input[type=text], input[type=email], input[type=password], select, textarea { font-size: 16px; }
}