:root {
  --bg: #0f0f13;
  --surface: #17171d;
  --surface-soft: #111116;
  --line: #3a2a2a;
  --line-strong: #5a3431;
  --text: #f4f3f2;
  --muted: #c9a9a1;
  --primary: #f5242a;
  --primary-dark: #cf1f24;
  --danger: #ff7a73;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Sora", "Segoe UI", "Inter", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 0% 0%, rgba(248, 90, 47, 0.18) 0, rgba(248, 90, 47, 0) 42%),
    radial-gradient(circle at 100% 10%, rgba(255, 141, 69, 0.14) 0, rgba(255, 141, 69, 0) 38%),
    linear-gradient(110deg, #0f1016 0%, #17161d 56%, #221b1c 100%);
  min-height: 100vh;
}

.page {
  max-width: 1040px;
  margin: 0 auto;
  padding: 24px;
}

.topbar {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(16, 16, 22, 0.85);
  backdrop-filter: blur(2px);
}

.topbar h1 {
  margin: 0;
  font-size: 1.8rem;
  letter-spacing: 0.01em;
}

.auth {
  display: flex;
  gap: 8px;
  align-items: center;
}

.user {
  color: var(--muted);
  font-size: 0.92rem;
}

.card {
  background: linear-gradient(180deg, rgba(25, 25, 31, 0.92) 0%, rgba(17, 17, 23, 0.95) 100%);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.32);
}

.card h2 {
  margin-top: 0;
}

.help {
  margin-top: 0;
  color: var(--muted);
}

.form {
  display: grid;
  gap: 10px;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  font: inherit;
  color: var(--text);
  background: var(--surface-soft);
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--line-strong);
  box-shadow: 0 0 0 2px rgba(245, 36, 42, 0.18);
}

textarea {
  resize: vertical;
  min-height: 180px;
}

.btn {
  display: inline-block;
  border: none;
  border-radius: 10px;
  padding: 10px 14px;
  background: linear-gradient(140deg, #ff4334 0%, var(--primary) 100%);
  color: #fff;
  text-decoration: none;
  cursor: pointer;
  font-weight: 600;
}

.btn:hover {
  background: linear-gradient(140deg, #ff4f3f 0%, var(--primary-dark) 100%);
}

.btn.secondary {
  border: 1px solid var(--line-strong);
  background: #1d1c24;
}

.error {
  border-color: #7a3b39;
  background: linear-gradient(180deg, rgba(52, 23, 24, 0.85) 0%, rgba(33, 15, 16, 0.9) 100%);
  color: var(--danger);
}

.result pre {
  white-space: pre-wrap;
  margin: 0;
  background: #111116;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

.hidden {
  display: none;
}

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

.progress-head h2 {
  margin: 0;
  font-size: 1.15rem;
}

.progress-detail {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.progress-elapsed {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.9rem;
}

.spinner {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  border: 3px solid rgba(255, 255, 255, 0.18);
  border-top-color: var(--primary);
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}

.spinner.done {
  animation: none;
  border: 0;
  background: linear-gradient(140deg, #ff7a32 0%, var(--primary) 100%);
  display: grid;
  place-items: center;
}

.spinner.done::after {
  content: "";
  width: 8px;
  height: 5px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg);
  margin-top: -1px;
}

.progress.done-error .spinner.done {
  background: #6f3734;
}

.progress.done-error .spinner.done::after {
  content: "!";
  width: auto;
  height: auto;
  border: 0;
  transform: none;
  margin-top: 0;
  font-size: 12px;
  font-weight: 800;
  color: #fff;
}

.progress.done .progress-detail {
  color: #d8c6c1;
}

.progress.done .progress-fill {
  transition: width 150ms ease;
}

.progress-track {
  margin-top: 12px;
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: #26222a;
  border: 1px solid var(--line);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #ff7a32 0%, var(--primary) 100%);
  transition: width 300ms ease;
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.login-card {
  width: min(520px, 100%);
  text-align: center;
  padding: 28px 22px;
}

.login-card h1 {
  margin: 0;
  font-size: 2rem;
}

.login-help {
  margin-top: 12px;
}

.login-btn {
  margin-top: 14px;
  padding: 12px 22px;
}

/* Nav links */
.nav-links {
  display: flex;
  gap: 6px;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
}

.nav-links a:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.nav-links a.active {
  background: rgba(245, 36, 42, 0.15);
  color: var(--text);
  font-weight: 600;
}

/* Dropdowns */
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  font: inherit;
  color: var(--text);
  background: var(--surface-soft);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23c9a9a1' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  cursor: pointer;
}

select:focus {
  outline: none;
  border-color: var(--line-strong);
  box-shadow: 0 0 0 2px rgba(245, 36, 42, 0.18);
}

/* Form layout helpers */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-field {
  display: grid;
  gap: 4px;
}

/* Confidence badge */
.confidence-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
}

.confidence-badge.high {
  background: rgba(34, 197, 94, 0.18);
  color: #4ade80;
}

.confidence-badge.medium {
  background: rgba(234, 179, 8, 0.18);
  color: #facc15;
}

.confidence-badge.low {
  background: rgba(239, 68, 68, 0.18);
  color: var(--danger);
}

/* Result header */
.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.result-header h2 {
  margin: 0;
}

/* Answer text */
.answer-text {
  white-space: pre-wrap;
  margin: 12px 0;
  background: #111116;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

/* Evidence sections */
.evidence-sections {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.evidence-group {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.evidence-group summary {
  padding: 10px 14px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.94rem;
  background: rgba(255, 255, 255, 0.03);
  user-select: none;
}

.evidence-group summary:hover {
  background: rgba(255, 255, 255, 0.06);
}

.ev-count {
  color: var(--muted);
  font-weight: 400;
  font-size: 0.85rem;
}

.evidence-group ul,
.evidence-group ol {
  margin: 0;
  padding: 12px 12px 12px 28px;
}

.evidence-group li {
  margin-bottom: 6px;
}

.evidence-group a {
  color: #ff9a8b;
  text-decoration: none;
}

.evidence-group a:hover {
  text-decoration: underline;
}

.source-chip {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 0.78rem;
  background: rgba(255, 255, 255, 0.08);
  color: var(--muted);
  vertical-align: middle;
}

/* Excerpts */
.excerpt {
  margin: 0 0 10px;
  padding: 10px 14px;
  border-left: 3px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.02);
  border-radius: 0 6px 6px 0;
  font-size: 0.93rem;
}

.excerpt cite {
  display: block;
  margin-top: 6px;
  font-size: 0.85rem;
  color: var(--muted);
  font-style: normal;
}

#ev-excerpts-list {
  padding: 12px;
}

/* Evidence gathering guide cards */
.guidance-card {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  background: rgba(255, 255, 255, 0.03);
}

.guidance-card.inferred {
  opacity: 0.7;
  border-style: dashed;
}

.guidance-field {
  margin-bottom: 0.25rem;
  font-size: 0.9rem;
}

.inferred-badge {
  display: inline-block;
  font-size: 0.7rem;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  background: rgba(255, 154, 139, 0.15);
  color: #ff9a8b;
  margin-top: 0.25rem;
}

/* Controls table */
.controls-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.controls-table th,
.controls-table td {
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.controls-table th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Evidence gaps */
.ev-gaps li {
  color: var(--danger);
}

/* Verification hint */
.verification {
  color: var(--muted);
  font-size: 0.88rem;
}

/* Result meta */
.result-meta {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 760px) {
  .page {
    padding: 14px;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .progress-head {
    align-items: flex-start;
  }

  .progress-elapsed {
    margin-left: 0;
  }
}