:root {
  --c-cream:   #faf8f4;
  --c-white:   #ffffff;
  --c-border:  #e8e3da;
  --c-navy:    #0d1b2e;
  --c-teal:    #00897b;
  --c-teal-lt: #e0f2f1;
  --c-text:    #1a2332;
  --c-muted:   #6b7280;
  --c-shadow:  0 1px 4px rgba(0,0,0,0.07), 0 4px 16px rgba(0,0,0,0.05);
  --c-success: #10b981;
  --c-warn:    #f59e0b;
  --c-danger:  #ef4444;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--c-cream);
  color: var(--c-text);
  font-size: 15px;
  min-height: 100vh;
}

/* ── Header ──────────────────────────────────────────────── */
.c-header {
  background: var(--c-white);
  border-bottom: 1px solid var(--c-border);
  padding: 0 40px;
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}
.c-header-logo {
  font-weight: 800;
  font-size: 15px;
  color: var(--c-navy);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.c-header-logo::before {
  content: '';
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--c-teal);
  border-radius: 50%;
}
.c-header-nav { display: flex; align-items: center; gap: 20px; }
.c-header-email { font-size: 13px; color: var(--c-muted); }
.c-header-nav a {
  font-size: 13px;
  color: var(--c-muted);
  text-decoration: none;
  font-weight: 500;
}
.c-header-nav a:hover { color: var(--c-text); }

/* ── Layout ──────────────────────────────────────────────── */
.c-page   { max-width: 860px; margin: 0 auto; padding: 40px 24px 80px; }
.c-page-lg { max-width: 1000px; margin: 0 auto; padding: 40px 24px 80px; }

.c-title    { font-size: 24px; font-weight: 800; color: var(--c-navy); margin-bottom: 4px; }
.c-subtitle { font-size: 14px; color: var(--c-muted); margin-bottom: 32px; }

/* ── Cards ───────────────────────────────────────────────── */
.c-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: 14px;
  box-shadow: var(--c-shadow);
  margin-bottom: 16px;
  overflow: hidden;
}

.report-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: start;
  padding: 22px 24px;
}
.report-card-meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.report-card-idea {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.report-card-date { font-size: 12px; color: var(--c-muted); margin-top: 6px; }
.report-card-actions { display: flex; flex-direction: column; gap: 8px; align-items: flex-end; padding-top: 2px; }

/* ── Badges ──────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center;
  padding: 3px 9px; border-radius: 99px;
  font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.05em;
}
.badge-complete  { background: #ecfdf5; color: #047857; }
.badge-pending   { background: #fffbeb; color: #92400e; }
.badge-generating{ background: #eff6ff; color: #1d4ed8; }
.badge-failed    { background: #fef2f2; color: #b91c1c; }
.badge-tier      { background: #f3f4f6; color: #374151; }

/* ── Buttons ─────────────────────────────────────────────── */
.c-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: 8px;
  font-size: 13.5px; font-weight: 600; font-family: inherit;
  cursor: pointer; border: 1.5px solid transparent;
  text-decoration: none; transition: background 0.15s;
  white-space: nowrap;
}
.c-btn-teal    { background: var(--c-teal);  color: #fff; border-color: var(--c-teal); }
.c-btn-teal:hover { background: #00796b; }
.c-btn-outline { background: transparent; border-color: var(--c-border); color: var(--c-text); }
.c-btn-outline:hover { background: var(--c-cream); }
.c-btn-sm { padding: 5px 11px; font-size: 12.5px; }

/* ── Empty state ─────────────────────────────────────────── */
.c-empty {
  text-align: center;
  padding: 64px 24px;
}
.c-empty-icon { font-size: 40px; margin-bottom: 16px; }
.c-empty h3   { font-size: 18px; font-weight: 700; color: var(--c-navy); margin-bottom: 8px; }
.c-empty p    { font-size: 14px; color: var(--c-muted); margin-bottom: 24px; max-width: 360px; margin-left: auto; margin-right: auto; }

/* ── Login / auth ────────────────────────────────────────── */
.c-auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-cream);
  padding: 20px;
}
.c-auth-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: 18px;
  padding: 44px 44px 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--c-shadow);
}
.c-auth-logo {
  font-size: 15px; font-weight: 800; color: var(--c-navy);
  display: flex; align-items: center; gap: 8px; margin-bottom: 6px;
}
.c-auth-logo::before {
  content: '';
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--c-teal);
  border-radius: 50%;
}
.c-auth-sub { font-size: 13px; color: var(--c-muted); margin-bottom: 30px; }

.c-field       { margin-bottom: 18px; }
.c-label       { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.c-input {
  width: 100%; padding: 10px 14px;
  border: 1.5px solid var(--c-border); border-radius: 9px;
  font-size: 14px; font-family: inherit; color: var(--c-text);
  background: var(--c-cream);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.c-input:focus { outline: none; border-color: var(--c-teal); box-shadow: 0 0 0 3px rgba(0,137,123,0.1); background: #fff; }

.c-alert       { padding: 11px 14px; border-radius: 8px; font-size: 13.5px; margin-bottom: 18px; }
.c-alert-error { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }
.c-alert-success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }

.c-auth-footer { text-align: center; margin-top: 20px; font-size: 13px; color: var(--c-muted); }
.c-auth-footer a { color: var(--c-teal); text-decoration: none; font-weight: 600; }

/* ── Report reader ───────────────────────────────────────── */
.c-report-wrap { max-width: 760px; margin: 0 auto; padding: 40px 24px 80px; }
.c-report-topbar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 28px; flex-wrap: wrap; gap: 12px;
}
.c-report-actions { display: flex; gap: 10px; }

.report-content { font-size: 15px; line-height: 1.75; color: var(--c-text); }
.report-content h1 { font-size: 26px; font-weight: 800; color: var(--c-navy); margin: 0 0 8px; }
.report-content h2 { font-size: 19px; font-weight: 700; color: var(--c-navy); margin: 36px 0 12px; border-bottom: 2px solid var(--c-border); padding-bottom: 8px; }
.report-content h3 { font-size: 15px; font-weight: 700; margin: 20px 0 8px; }
.report-content p  { margin: 0 0 14px; }
.report-content ul, .report-content ol { padding-left: 22px; margin: 0 0 14px; }
.report-content li { margin-bottom: 6px; }
.report-content table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; }
.report-content th { background: #f9fafb; font-weight: 700; text-align: left; padding: 10px 14px; border: 1px solid var(--c-border); }
.report-content td { padding: 10px 14px; border: 1px solid var(--c-border); }
.report-content .score-pill {
  display: inline-block; padding: 6px 18px; border-radius: 99px;
  font-weight: 800; font-size: 22px;
  background: var(--c-teal-lt); color: var(--c-teal); margin: 8px 0;
}

/* ── Risk badges ─────────────────────────────────────────── */
.report-content .risk-high   { display:inline-block; padding:2px 9px; border-radius:5px; font-size:11.5px; font-weight:700; background:#fef2f2; color:#b91c1c; }
.report-content .risk-medium { display:inline-block; padding:2px 9px; border-radius:5px; font-size:11.5px; font-weight:700; background:#fffbeb; color:#92400e; }
.report-content .risk-low    { display:inline-block; padding:2px 9px; border-radius:5px; font-size:11.5px; font-weight:700; background:#ecfdf5; color:#065f46; }

/* ── Score cell classes ──────────────────────────────────── */
.report-content .score-good { color: #065f46; font-weight: 700; }
.report-content .score-mid  { color: #92400e; font-weight: 700; }
.report-content .score-bad  { color: #b91c1c; font-weight: 700; }

/* ── Insight / callout boxes ─────────────────────────────── */
.report-content .insight-box {
  background: #f4f0e8;
  border-left: 3px solid var(--c-teal);
  border-radius: 0 10px 10px 0;
  padding: 14px 18px;
  margin: 18px 0;
  font-size: 14px;
  line-height: 1.65;
}

/* ── Table enhancements ──────────────────────────────────── */
.report-content tr:nth-child(even) td { background: #faf8f4; }
.report-content th { color: var(--c-navy); font-size: 13px; }
.report-content td { font-size: 14px; vertical-align: top; }

/* ── Report header section ───────────────────────────────── */
.report-content .report-header { margin-bottom: 28px; }
.report-content .text-muted { color: var(--c-muted); font-size: 13.5px; margin-bottom: 10px; }

/* ── Score history ───────────────────────────────────────── */
.score-history {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 20px;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.score-history-arrow { color: var(--c-muted); font-size: 18px; line-height: 1; padding-top: 2px; }
.score-node {
  text-align: center;
  padding: 10px 16px;
  border-radius: 10px;
  background: #f9fafb;
  border: 1.5px solid var(--c-border);
  min-width: 80px;
}
.score-node-current { background: var(--c-cream); border-color: var(--c-teal); }
.score-node-good { border-color: #a7f3d0; }
.score-node-good .score-node-num { color: #065f46; }
.score-node-mid { border-color: #fde68a; }
.score-node-mid .score-node-num { color: #92400e; }
.score-node-bad { border-color: #fecaca; }
.score-node-bad .score-node-num { color: #b91c1c; }
.score-node-num { font-size: 22px; font-weight: 800; line-height: 1.1; }
.score-node-denom { font-size: 13px; font-weight: 500; opacity: 0.6; }
.score-node-label { font-size: 11px; color: var(--c-muted); margin-top: 3px; font-weight: 500; }
.score-node-delta { font-size: 12px; font-weight: 700; margin-top: 2px; }
.delta-up   { color: #059669; }
.delta-down { color: #dc2626; }

/* ── Upgrade banner ──────────────────────────────────────── */
.upgrade-banner {
  background: linear-gradient(135deg, #0d1b2e 0%, #1c3050 100%);
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.upgrade-banner-text { color: rgba(255,255,255,0.85); font-size: 14px; line-height: 1.6; flex: 1; min-width: 240px; }
.upgrade-banner-text strong { color: #fff; }
.upgrade-banner-actions { display: flex; gap: 10px; flex-wrap: wrap; flex-shrink: 0; }
.upgrade-banner .c-btn-teal { background: var(--c-teal); border-color: var(--c-teal); }
.upgrade-banner .c-btn-teal:hover { background: #00796b; }

/* ── Refinement generating banner ───────────────────────── */
.refine-generating-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 10px;
  margin-bottom: 16px;
  font-size: 13.5px;
  color: #1d4ed8;
  font-weight: 500;
}

/* ── Sprint panel ────────────────────────────────────────── */
.sprint-panel {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: 14px;
  padding: 28px 32px;
  margin-top: 20px;
  box-shadow: var(--c-shadow);
}
.sprint-panel-header { margin-bottom: 20px; }
.sprint-panel-title { font-size: 17px; font-weight: 800; color: var(--c-navy); margin-bottom: 3px; }
.sprint-panel-sub { font-size: 13px; color: var(--c-muted); }

.sprint-suggestions-wrap {
  background: #f4f0e8;
  border-left: 3px solid var(--c-teal);
  border-radius: 0 10px 10px 0;
  padding: 14px 18px;
  margin-bottom: 18px;
}
.sprint-suggestions-label { font-size: 12px; font-weight: 700; color: var(--c-teal); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 8px; }
.sprint-suggestions-body { font-size: 14px; line-height: 1.7; white-space: pre-wrap; color: var(--c-text); }

.sprint-field { margin-bottom: 16px; }
.sprint-textarea { resize: vertical; min-height: 110px; font-size: 14px; line-height: 1.6; }

.sprint-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.sprint-exhausted {
  padding: 20px;
  background: #f9fafb;
  border-radius: 8px;
  font-size: 14px;
  color: var(--c-muted);
  text-align: center;
}
.sprint-extra-note {
  font-size: 13px;
  color: var(--c-muted);
  background: var(--c-teal-lt, #e0f7f5);
  border-radius: 6px;
  padding: 8px 12px;
  margin-bottom: 14px;
}

/* ── Refinement history ──────────────────────────────────── */
.refinement-history { margin-top: 28px; border-top: 1px solid var(--c-border); padding-top: 20px; }
.refinement-history-title { font-size: 13px; font-weight: 700; color: var(--c-muted); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 14px; }
.refinement-item { padding: 14px 0; border-bottom: 1px solid var(--c-border); }
.refinement-item:last-child { border-bottom: none; padding-bottom: 0; }
.refinement-item-meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 6px; }
.refinement-item-label { font-size: 13px; font-weight: 700; color: var(--c-navy); }
.refinement-item-date  { font-size: 12px; color: var(--c-muted); }
.refinement-item-score { font-size: 13px; color: var(--c-text); }
.refinement-item-request { font-size: 13px; color: var(--c-muted); line-height: 1.5; }

/* ── Generating state ────────────────────────────────────── */
.generating-card {
  text-align: center; padding: 56px 24px;
  background: var(--c-white); border: 1px solid var(--c-border);
  border-radius: 14px; box-shadow: var(--c-shadow);
}
.generating-spinner {
  width: 40px; height: 40px; border: 3px solid var(--c-border);
  border-top-color: var(--c-teal); border-radius: 50%;
  animation: spin 0.8s linear infinite; margin: 0 auto 20px;
}
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 600px) {
  .c-header { padding: 0 20px; }
  .c-auth-card { padding: 32px 24px 28px; }
  .report-card { grid-template-columns: 1fr; }
  .report-card-actions { flex-direction: row; align-items: flex-start; }
}