:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #fafbfc;
  --border: #e2e5ea;
  --border-strong: #cbd2da;
  --text: #14181d;
  --text-dim: #5c6672;
  --text-faint: #8b95a1;
  --accent: #1f5fd6;
  --accent-dark: #17489f;
  --accent-soft: #eaf1fd;
  --ok: #12805c;
  --ok-soft: #e5f5ef;
  --warn: #9a6500;
  --warn-soft: #fdf3e2;
  --err: #b3261e;
  --err-soft: #fdecea;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 8px 24px rgba(16, 24, 40, .06);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --surface: #171b21;
    --surface-2: #1c2128;
    --border: #262d36;
    --border-strong: #38414d;
    --text: #e6e9ed;
    --text-dim: #a3adb9;
    --text-faint: #77828f;
    --accent: #6f9dfa;
    --accent-dark: #8ab0ff;
    --accent-soft: #17233a;
    --ok: #4ec89b;
    --ok-soft: #14261f;
    --warn: #e0b062;
    --warn-soft: #2a2113;
    --err: #f28b82;
    --err-soft: #2c1a18;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0; font-weight: 650; letter-spacing: -.01em; }

code {
  font-family: var(--mono);
  font-size: .88em;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: .06em .35em;
}

/* ---------- top bar ---------- */

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}

.topbar-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand { display: flex; align-items: center; gap: 12px; }

.brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .02em;
  flex: none;
}

.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text strong { font-size: 15px; }
.brand-text small { color: var(--text-faint); font-size: 12px; }

.topbar-right { display: flex; align-items: center; gap: 14px; }
.topbar-right form { margin: 0; }
.who { color: var(--text-dim); font-size: 13px; }
.link { color: var(--accent); text-decoration: none; font-size: 13px; }
.link:hover { text-decoration: underline; }

/* ---------- layout ---------- */

.page { max-width: 1180px; margin: 0 auto; padding: 26px 24px 60px; }

.layout {
  display: grid;
  grid-template-columns: minmax(320px, 400px) 1fr;
  gap: 22px;
  align-items: start;
}

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .topbar-inner, .page { padding-left: 16px; padding-right: 16px; }
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}

.upload-panel { position: sticky; top: 82px; }
@media (max-width: 900px) { .upload-panel { position: static; } }

.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.panel-head h2 { font-size: 16px; }
.muted { color: var(--text-faint); font-size: 12px; }

.note {
  color: var(--text-faint);
  font-size: 12px;
  line-height: 1.5;
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.empty { color: var(--text-faint); font-size: 14px; margin: 6px 0; }

/* ---------- dropzone ---------- */

.dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 30px 18px;
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface-2);
  cursor: pointer;
  text-align: center;
  transition: border-color .15s, background .15s;
}

.dropzone:hover, .dropzone.is-over {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.dz-icon { width: 30px; height: 30px; color: var(--accent); margin-bottom: 2px; }
.dz-title { font-weight: 600; font-size: 14px; }
.dz-sub { color: var(--text-faint); font-size: 12px; }

.file-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
  max-height: 168px;
  overflow-y: auto;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 12px;
  color: var(--text-dim);
}

.chip span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 210px;
}

.chip button {
  border: 0;
  background: none;
  color: var(--text-faint);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  padding: 0;
}

.chip button:hover { color: var(--err); }

.upload-actions { display: flex; gap: 8px; margin-top: 14px; }

/* ---------- buttons ---------- */

.btn {
  font: inherit;
  font-size: 13.5px;
  font-weight: 550;
  border-radius: 7px;
  border: 1px solid transparent;
  padding: 8px 14px;
  cursor: pointer;
  transition: background .13s, border-color .13s, color .13s, opacity .13s;
  white-space: nowrap;
}

.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-sm { padding: 5px 11px; font-size: 12.5px; }
.btn-block { width: 100%; }

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:not(:disabled):hover { background: var(--accent-dark); }

.btn-ghost { background: transparent; border-color: var(--border-strong); color: var(--text-dim); }
.btn-ghost:not(:disabled):hover { border-color: var(--accent); color: var(--accent); }

.btn-danger-ghost { background: transparent; border-color: transparent; color: var(--text-faint); }
.btn-danger-ghost:hover { color: var(--err); border-color: var(--err); }

/* ---------- alerts ---------- */

.alert {
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 13px;
  margin-bottom: 12px;
  border: 1px solid transparent;
}

.alert-error { background: var(--err-soft); color: var(--err); border-color: color-mix(in srgb, var(--err) 30%, transparent); }

/* ---------- jobs ---------- */

.job {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
  padding: 14px;
  margin-bottom: 14px;
}

.job:last-child { margin-bottom: 0; }

.job-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.job-title { display: flex; align-items: center; gap: 10px; }
.job-when { color: var(--text-faint); font-size: 12.5px; }
.job-actions { display: flex; gap: 6px; align-items: center; }

.pill {
  font-size: 11.5px;
  font-weight: 650;
  letter-spacing: .02em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  color: var(--text-dim);
}

.pill.is-running { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.pill.is-done { background: var(--ok-soft); color: var(--ok); border-color: transparent; }
.pill.is-partial { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.pill.is-failed { background: var(--err-soft); color: var(--err); border-color: transparent; }

.job-meter {
  height: 4px;
  border-radius: 999px;
  background: var(--border);
  overflow: hidden;
  margin: 12px 0 10px;
}

.job-meter span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--accent);
  transition: width .35s ease;
}

.job-meter.is-done span { background: var(--ok); }
.job-meter.is-partial span { background: var(--warn); }
.job-meter.is-failed span { background: var(--err); }

.job-summary { color: var(--text-dim); font-size: 12.5px; margin-bottom: 10px; }

.files { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 1px; }

.file {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 12px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 12px;
  align-items: center;
}

.file + .file { margin-top: 6px; }

.pdf-badge {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .04em;
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(229, 57, 53, 0.15);
  color: #e53935;
  border: 1px solid rgba(229, 57, 53, 0.3);
  flex: none;
}

.file-name {
  font-size: 13.5px;
  font-weight: 550;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.accuracy-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 1.5px 7px;
  border-radius: 999px;
  flex: none;
  display: inline-flex;
  align-items: center;
  line-height: 1.4;
}

.accuracy-badge.accuracy-high {
  background: var(--ok-soft);
  color: var(--ok);
  border: 1px solid rgba(18, 128, 92, 0.25);
}

.accuracy-badge.accuracy-medium {
  background: var(--warn-soft);
  color: var(--warn);
  border: 1px solid rgba(154, 101, 0, 0.25);
}

.accuracy-badge.accuracy-low {
  background: var(--err-soft);
  color: var(--err);
  border: 1px solid rgba(179, 38, 30, 0.25);
}

.file-meta { grid-column: 1; color: var(--text-faint); font-size: 12px; }
.file-right { grid-column: 2; grid-row: 1 / span 2; display: flex; align-items: center; gap: 8px; }

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
  background: var(--border-strong);
}

.dot.is-processing { background: var(--accent); animation: pulse 1.1s ease-in-out infinite; }
.dot.is-done { background: var(--ok); }
.dot.is-failed { background: var(--err); }

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .3; } }

.file-bar {
  grid-column: 1 / -1;
  height: 3px;
  border-radius: 999px;
  background: var(--border);
  overflow: hidden;
  margin-top: 2px;
}

.file-bar span { display: block; height: 100%; background: var(--accent); transition: width .35s ease; }

/* ---------- review flags ---------- */

.flags { grid-column: 1 / -1; margin-top: 7px; }

.badges { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }

.badge {
  font: inherit;
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1.5;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid transparent;
  white-space: nowrap;
}

.badge-ok { background: var(--ok-soft); color: var(--ok); }
.badge-review { background: var(--warn-soft); color: var(--warn); }
.badge-visual { background: var(--accent-soft); color: var(--accent); }

.badge-toggle {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text-dim);
  cursor: pointer;
}

.badge-toggle:hover { border-color: var(--accent); color: var(--accent); }

.flag-list {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.flag {
  display: flex;
  gap: 8px;
  align-items: baseline;
  font-size: 12.5px;
  line-height: 1.45;
  padding: 6px 9px;
  border-radius: 6px;
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.flag-review { border-left: 3px solid var(--warn); }
.flag-visual { border-left: 3px solid var(--accent); }

.flag-tag {
  flex: none;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .03em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding-top: 1px;
}

.flag-review .flag-tag { color: var(--warn); }
.flag-visual .flag-tag { color: var(--accent); }
.flag-body { color: var(--text-dim); }

.file-error {
  grid-column: 1 / -1;
  margin-top: 6px;
  background: var(--err-soft);
  color: var(--err);
  border-radius: 6px;
  padding: 7px 10px;
  font-size: 12.5px;
  line-height: 1.45;
  word-break: break-word;
}

/* ---------- auth ---------- */

.auth-body { background: var(--bg); }

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 370px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 30px 28px 24px;
}

.auth-brand { text-align: center; margin-bottom: 22px; }
.auth-brand .brand-mark { margin: 0 auto 12px; width: 42px; height: 42px; font-size: 14px; }
.auth-brand h1 { font-size: 19px; margin-bottom: 4px; }
.auth-brand p { color: var(--text-faint); font-size: 13px; margin: 0; }

.auth-form { display: flex; flex-direction: column; gap: 6px; }
.auth-form label { font-size: 12.5px; font-weight: 600; color: var(--text-dim); margin-top: 8px; }

.auth-form input {
  font: inherit;
  font-size: 14px;
  padding: 9px 11px;
  border-radius: 7px;
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
  color: var(--text);
}

.auth-form input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.auth-form .btn { margin-top: 18px; padding: 10px; }

.auth-footnote {
  text-align: center;
  color: var(--text-faint);
  font-size: 12px;
  margin: 18px 0 0;
}