/* =========================================================
   Keyword Researcher — CCR design system
   Palette: warm cream / saddle tan, charcoal text
   Fonts:   DM Serif Display (display) + Outfit (body)
   ========================================================= */

:root {
  --cream-0: #fff9f2;
  --cream-1: #fef0e3;
  --cream-2: #fdf5ee;
  --cream-3: #faf6f0;
  --tan: #c4956a;
  --tan-dark: #a87d55;
  --tan-soft: #d9cbbd;
  --tan-pale: rgba(196, 149, 106, 0.12);
  --charcoal: #2d2a33;
  --muted: #8a8490;
  --muted-strong: #b0845c;
  --success: #5aaf6a;
  --danger: #d4654a;
  --card: #ffffff;
  --border: rgba(196, 149, 106, 0.22);
  --shadow-sm: 0 1px 2px rgba(45, 42, 51, 0.05);
  --shadow: 0 4px 18px rgba(168, 125, 85, 0.08);
  --radius: 14px;
  --radius-sm: 10px;
  --font-body: "Outfit", system-ui, -apple-system, sans-serif;
  --font-display: "DM Serif Display", Georgia, serif;
}

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

html, body { height: 100%; }

body {
  font-family: var(--font-body);
  color: var(--charcoal);
  background:
    linear-gradient(170deg, var(--cream-0) 0%, var(--cream-1) 30%, var(--cream-2) 60%, #ffffff 100%);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

.page {
  max-width: 1080px;
  margin: 0 auto;
  padding: 56px 24px 80px;
}

/* ---------- Hero ---------- */

.hero { text-align: center; margin-bottom: 40px; }

.eyebrow {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted-strong);
  margin-bottom: 12px;
  font-weight: 500;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(40px, 6vw, 64px);
  letter-spacing: -0.01em;
  color: var(--charcoal);
  margin-bottom: 10px;
}

.subtitle {
  color: var(--muted);
  font-size: 16px;
  max-width: 520px;
  margin: 0 auto;
}

/* ---------- Search form ---------- */

.search-form {
  display: flex;
  gap: 10px;
  max-width: 680px;
  margin: 0 auto 32px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px;
  box-shadow: var(--shadow);
}

.search-form input {
  flex: 1;
  border: 0;
  outline: none;
  background: transparent;
  padding: 14px 16px;
  font-size: 16px;
  font-family: var(--font-body);
  color: var(--charcoal);
}

.search-form input::placeholder { color: var(--muted); }

.search-form button {
  border: 0;
  cursor: pointer;
  padding: 14px 28px;
  border-radius: calc(var(--radius) - 4px);
  background: linear-gradient(135deg, var(--tan) 0%, var(--tan-dark) 100%);
  color: #fff;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.02em;
  transition: transform 0.08s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}

.search-form button:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(168, 125, 85, 0.25); }
.search-form button:active { transform: translateY(0); }
.search-form button:disabled { opacity: 0.55; cursor: wait; }

/* ---------- Status / loading / error ---------- */

.status {
  text-align: center;
  padding: 24px;
  color: var(--muted);
  font-size: 15px;
}

.status--error { color: var(--danger); }

.spinner {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2px solid var(--tan-pale);
  border-top-color: var(--tan);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: middle;
  margin-right: 10px;
}

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

/* ---------- Summary cards ---------- */

.results { animation: fade-in 0.35s ease; }
@keyframes fade-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--shadow-sm);
}

.card--hero { background: linear-gradient(135deg, #fffaf3 0%, #ffffff 100%); }

.card__label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--muted-strong);
  font-weight: 500;
  margin-bottom: 10px;
}

.card__value {
  font-family: var(--font-display);
  font-size: 36px;
  line-height: 1.1;
  color: var(--charcoal);
  letter-spacing: -0.01em;
}

.card__meta {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

/* Competition score color states */
.card__value.is-easy     { color: var(--success); }
.card__value.is-moderate { color: var(--tan-dark); }
.card__value.is-hard     { color: var(--muted-strong); }
.card__value.is-veryhard { color: var(--danger); }

.score-bar {
  margin-top: 12px;
  height: 6px;
  background: var(--tan-pale);
  border-radius: 3px;
  overflow: hidden;
}
.score-bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--success), var(--tan), var(--danger));
  border-radius: 3px;
  width: 0%;
  transition: width 0.5s ease;
}

/* ---------- Panels & layout ---------- */

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 26px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

.panel h2 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 400;
  color: var(--charcoal);
  margin-bottom: 18px;
  letter-spacing: -0.005em;
}

.two-col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  margin-bottom: 20px;
}

.two-col .panel { margin-bottom: 0; }

/* ---------- Trend chart (inline SVG) ---------- */

.trend {
  width: 100%;
  min-height: 140px;
}
.trend svg { width: 100%; height: 160px; display: block; }
.trend .trend-line { fill: none; stroke: var(--tan-dark); stroke-width: 2; }
.trend .trend-area { fill: var(--tan); opacity: 0.12; }
.trend .trend-dot { fill: var(--tan-dark); }
.trend .trend-label { fill: var(--muted); font-size: 11px; font-family: var(--font-body); }
.trend .trend-axis { stroke: var(--border); stroke-width: 1; }

/* ---------- SERP list ---------- */

.serp-list {
  list-style: none;
  counter-reset: serp;
}

.serp-list li {
  counter-increment: serp;
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 10px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.serp-list li:last-child { border-bottom: 0; }

.serp-list li::before {
  content: counter(serp);
  font-family: var(--font-display);
  color: var(--tan);
  font-size: 18px;
  line-height: 1.3;
}

.serp-list a {
  color: var(--charcoal);
  font-weight: 500;
  text-decoration: none;
  font-size: 15px;
}

.serp-list a:hover { color: var(--tan-dark); text-decoration: underline; }

.serp-list .serp-domain {
  color: var(--muted-strong);
  font-size: 12px;
  display: block;
  margin-bottom: 2px;
}

.serp-list .serp-snippet {
  color: var(--muted);
  font-size: 13px;
  margin-top: 4px;
  line-height: 1.45;
}

/* ---------- Related keywords ---------- */

.related-list {
  list-style: none;
}

.related-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.related-list li:last-child { border-bottom: 0; }

.related-list .related-kw {
  color: var(--charcoal);
  font-size: 15px;
  font-weight: 500;
}

.related-list .related-vol {
  color: var(--muted-strong);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.related-list .comp-chip {
  display: inline-block;
  font-size: 10px;
  padding: 2px 8px;
  margin-left: 6px;
  border-radius: 99px;
  background: var(--tan-pale);
  color: var(--tan-dark);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

/* ---------- Factors list ---------- */

.factors-list {
  list-style: none;
}
.factors-list li {
  padding: 10px 0 10px 24px;
  position: relative;
  color: var(--charcoal);
  border-bottom: 1px solid var(--border);
  font-size: 14.5px;
}
.factors-list li:last-child { border-bottom: 0; }
.factors-list li::before {
  content: "";
  position: absolute;
  left: 4px; top: 18px;
  width: 8px; height: 8px;
  background: var(--tan);
  border-radius: 50%;
}

/* ---------- Footer ---------- */

.page-footer {
  margin-top: 48px;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-footer .legal-links {
  margin-top: 8px;
  font-size: 12px;
}

.page-footer .legal-links a {
  color: var(--muted-strong);
  text-decoration: none;
  transition: color 0.15s ease;
}

.page-footer .legal-links a:hover {
  color: var(--tan-dark);
  text-decoration: underline;
}

/* ---------- Mobile tweaks ---------- */

@media (max-width: 640px) {
  .page { padding: 36px 16px 60px; }
  .search-form { flex-direction: column; padding: 10px; }
  .search-form button { padding: 14px; }
  .card__value { font-size: 30px; }
  .panel { padding: 20px 18px; }
}