:root {
  color-scheme: dark;
  --bg: #090b10;
  --surface: #11151d;
  --surface-2: #171c26;
  --border: #252c39;
  --text: #f4f7fb;
  --muted: #929daf;
  --accent: #8cffbd;
  --accent-ink: #07140d;
  --violet: #a99cff;
  --danger: #ff8f9c;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(circle at 85% -10%, #1b2931 0, transparent 35%), var(--bg); color: var(--text); }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }

.topbar { height: 72px; padding: 0 clamp(20px, 5vw, 72px); border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; background: rgb(9 11 16 / 82%); backdrop-filter: blur(18px); position: sticky; top: 0; z-index: 10; }
.brand, nav { display: flex; align-items: center; gap: 12px; }
.brand { font-weight: 700; letter-spacing: -.02em; }
nav { gap: 24px; color: var(--muted); }
nav form { margin: 0; }
.brand-mark { width: 34px; height: 34px; border-radius: 11px; display: grid; place-items: center; background: var(--accent); color: var(--accent-ink); font-size: 12px; font-weight: 900; box-shadow: 0 0 32px rgb(140 255 189 / 20%); }
.brand-mark.large { width: 48px; height: 48px; border-radius: 15px; font-size: 15px; }

.page-shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; padding: 56px 0 80px; }
.page-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
h1 { margin: 8px 0 10px; max-width: 780px; font-size: clamp(34px, 5vw, 58px); line-height: 1.02; letter-spacing: -.055em; }
h2 { margin: 8px 0; font-size: 24px; letter-spacing: -.025em; }
h3 { margin: 0 0 16px; }
p { line-height: 1.65; }
.muted { color: var(--muted); margin: 0; }
.eyebrow { color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }

.card { border: 1px solid var(--border); background: linear-gradient(145deg, rgb(23 28 38 / 94%), rgb(15 19 27 / 94%)); border-radius: 18px; box-shadow: 0 18px 50px rgb(0 0 0 / 18%); }
.button { min-height: 42px; padding: 0 17px; border: 1px solid var(--border); border-radius: 11px; display: inline-flex; align-items: center; justify-content: center; cursor: pointer; background: transparent; color: var(--text); font-weight: 700; }
.button.primary { border-color: var(--accent); background: var(--accent); color: var(--accent-ink); }
.button.ghost:hover { border-color: #455064; background: var(--surface-2); }
.count-pill { padding: 8px 13px; border-radius: 999px; background: #17241d; color: var(--accent); font-size: 13px; font-weight: 750; }
.heading-actions { display: flex; align-items: center; gap: 12px; }

.login-layout { min-height: calc(100vh - 136px); display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: clamp(50px, 9vw, 130px); }
.login-intro h1 { font-size: clamp(48px, 7vw, 82px); }
.login-intro p { max-width: 540px; color: var(--muted); font-size: 18px; }
.login-card { padding: 38px; }
.stack { display: grid; gap: 12px; margin-top: 28px; }
label { color: var(--muted); font-size: 13px; font-weight: 700; }
input, select, textarea { width: 100%; min-height: 46px; margin-top: 8px; padding: 0 13px; border: 1px solid var(--border); border-radius: 11px; outline: none; background: #0c1017; color: var(--text); }
textarea { padding: 12px 13px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgb(140 255 189 / 10%); }
.alert { margin-top: 20px; padding: 12px 14px; border: 1px solid #68323b; border-radius: 11px; background: #2a151a; color: #ffc0c7; }

.filters { padding: 18px; display: grid; grid-template-columns: 1fr 1fr auto auto; align-items: end; gap: 14px; margin-bottom: 20px; }
.activity-list { display: grid; gap: 10px; }
.activity-row { padding: 20px; display: grid; grid-template-columns: 44px 1fr auto; align-items: center; gap: 16px; transition: transform .18s ease, border-color .18s ease; }
.activity-row:hover { transform: translateY(-2px); border-color: #3d485b; }
.sender-avatar { width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center; background: #222b38; color: var(--violet); font-weight: 800; }
.activity-title { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; }
.activity-title time, .sender { color: var(--muted); font-size: 13px; }
.sender { display: block; margin: 5px 0 13px; }
.activity-reason { margin: -4px 0 13px; color: #c3cad5; font-size: 13px; }
.badges { display: flex; flex-wrap: wrap; gap: 7px; }
.badge, .status { padding: 5px 9px; border-radius: 8px; background: #202632; color: #bdc6d4; font-size: 11px; font-weight: 750; text-transform: capitalize; }
.badge.category { background: #24213c; color: #c9c0ff; }
.badge.action { background: #172a23; color: #9ee6bf; }
.status { background: #262a32; }
.status.done { color: var(--accent); }
.status.failed { color: var(--danger); background: #2a171c; }
.status.processing, .status.received { color: #ffc977; background: #2c2518; }
.row-arrow { color: var(--muted); font-size: 20px; }
.empty-state { padding: 64px 20px; text-align: center; color: var(--muted); }
.empty-icon { font-size: 40px; color: var(--accent); }

.back-link { display: inline-block; margin-bottom: 20px; color: var(--muted); }
.success-banner { margin-bottom: 18px; padding: 13px 16px; border: 1px solid #315440; border-radius: 12px; background: #14241b; color: var(--accent); }
.detail-header { padding: 30px; display: flex; align-items: flex-start; justify-content: space-between; gap: 32px; }
.detail-header h1 { font-size: clamp(30px, 4vw, 46px); }
.detail-meta { display: grid; justify-items: end; gap: 18px; color: var(--muted); font-size: 13px; white-space: nowrap; }
.detail-meta form { margin: 0; }
.quarantine-reason { margin: 20px 0 0; color: #cbd3df; }
.resolution-form { width: min(280px, 100%); display: grid; gap: 14px; }
.review-actions { display: flex; align-items: center; gap: 10px; }
.review-actions form { margin: 0; }
.badge.danger { background: #321b21; color: #ffb0b9; }
.review-comparison { margin-top: 22px; display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.review-panel { min-width: 0; padding: 28px; }
.review-panel h2 { margin-bottom: 22px; }
.email-meta { display: grid; grid-template-columns: auto 1fr; gap: 8px 14px; margin: 0 0 24px; }
.email-meta dt { color: var(--muted); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.email-meta dd { margin: 0; }
.email-body { padding: 20px; border-radius: 12px; background: #090c11; color: #d7dee8; line-height: 1.7; white-space: pre-wrap; overflow-wrap: anywhere; }
.steps-section { margin-top: 48px; }
.section-title { margin-bottom: 24px; }
.timeline { margin: 0; padding: 0; list-style: none; display: grid; gap: 18px; }
.timeline-step { display: grid; grid-template-columns: 36px 1fr; gap: 16px; position: relative; }
.timeline-step:not(:last-child)::before { content: ""; position: absolute; top: 36px; bottom: -18px; left: 17px; width: 1px; background: var(--border); }
.timeline-marker { width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; background: #1d2b24; border: 1px solid #315440; color: var(--accent); font-size: 12px; font-weight: 800; z-index: 1; }
.step-card { min-width: 0; padding: 22px; }
pre { margin: 0; padding: 16px; border-radius: 11px; overflow: auto; background: #090c11; color: #c5d0df; font: 12px/1.7 ui-monospace, SFMono-Regular, Menlo, monospace; }

.settings-form { display: grid; gap: 22px; }
.settings-section { padding: 28px; display: grid; grid-template-columns: minmax(220px, .65fr) minmax(0, 1.35fr); gap: 42px; }
.settings-fields { display: grid; gap: 20px; }
.settings-fields.three-columns { grid-template-columns: repeat(3, 1fr); }
.checkbox-group { margin: 0; padding: 0; border: 0; display: grid; gap: 10px; }
.checkbox-group legend { margin-bottom: 10px; color: var(--muted); font-size: 13px; font-weight: 700; }
.checkbox-row { min-height: 44px; padding: 0 13px; border: 1px solid var(--border); border-radius: 11px; display: flex; align-items: center; gap: 11px; background: #0c1017; color: var(--text); }
.checkbox-row input { width: 18px; min-height: 18px; margin: 0; accent-color: var(--accent); }
.field-error { display: block; margin-top: 7px; color: var(--danger); font-size: 12px; }
.settings-actions { display: flex; justify-content: flex-end; }

.invoice-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.invoice-card { padding: 26px; }
.invoice-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
.invoice-heading h2 { margin-top: 0; }
.invoice-heading .sender { margin: 0 0 5px; }
.invoice-total { color: var(--accent); font-size: 19px; white-space: nowrap; }
.badge.due-soon { background: #2c2518; color: #ffc977; }
.invoice-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 24px 0 0; }
.invoice-meta div { padding: 14px; border-radius: 11px; background: #0c1017; }
.invoice-meta dt { margin-bottom: 5px; color: var(--muted); font-size: 11px; font-weight: 800; text-transform: uppercase; }
.invoice-meta dd { margin: 0; }
.invoice-lines { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 8px; color: #cbd3df; font-size: 13px; }
.invoice-lines li { display: flex; justify-content: space-between; gap: 14px; }

.knowledge-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.knowledge-panel { padding: 28px; }
.knowledge-results, .documents-section { margin-top: 42px; }
.passage-list, .document-list { display: grid; gap: 12px; }
.passage-card { padding: 22px; }
.passage-card p { margin: 14px 0 0; color: #d7dee8; white-space: pre-wrap; }
.passage-heading, .document-row, .document-meta { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.document-row { padding: 20px; }
.document-row .sender { margin: 6px 0 0; }
.document-meta { color: var(--muted); font-size: 13px; }
.document-meta form { margin: 0; }

@media (max-width: 760px) {
  .page-shell { width: min(100% - 28px, 1120px); padding-top: 34px; }
  .login-layout { grid-template-columns: 1fr; gap: 36px; }
  .login-intro h1 { font-size: 50px; }
  .filters { grid-template-columns: 1fr; }
  .activity-row { grid-template-columns: 38px 1fr; }
  .row-arrow { display: none; }
  .activity-title, .detail-header { align-items: flex-start; flex-direction: column; }
  .review-comparison { grid-template-columns: 1fr; }
  .settings-section, .settings-fields.three-columns { grid-template-columns: 1fr; }
  .invoice-list { grid-template-columns: 1fr; }
  .knowledge-layout { grid-template-columns: 1fr; }
  .document-row, .document-meta { align-items: flex-start; flex-direction: column; }
  .heading-actions { align-items: flex-end; flex-direction: column; }
  .detail-meta { justify-items: start; white-space: normal; }
  .topbar { padding: 0 16px; }
  nav > a { display: none; }
}

.diagram { display: flex; gap: 14px; align-items: center; overflow-x: auto; padding-bottom: 6px; }
.diagram-column { display: grid; gap: 6px; }
.diagram-node { padding: 6px 10px; border: 1px solid var(--border); border-radius: 9px; color: var(--muted); font-size: 12px; white-space: nowrap; }
.diagram-node.visited { border-color: var(--violet); color: var(--text); }
.diagram-node.current { border-color: var(--accent); background: #17241d; color: var(--accent); font-weight: 800; }
.saved-label { padding: 4px 10px; border-radius: 999px; background: #1d1a33; color: var(--violet); font-size: 12px; font-weight: 800; }