/* =========================================================
   Graphene Live — SEO tools UI (uses variables from style.css)
   ========================================================= */
.seo-tool {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--bg-2);
  padding: clamp(20px, 3vw, 36px);
  margin: clamp(24px, 3vw, 40px) 0;
}
.tool-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(20px, 3vw, 40px); }
.tool-fields { display: flex; flex-direction: column; gap: 18px; min-width: 0; }

.tool-label { display: flex; flex-direction: column; gap: 8px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
.tool-input {
  width: 100%; background: var(--bg); border: 1px solid var(--line); border-radius: 10px;
  color: var(--fg); font-family: var(--font-body); font-size: 16px; padding: 12px 14px;
  text-transform: none; letter-spacing: 0; transition: border-color .3s; resize: vertical;
}
.tool-input:focus { outline: none; border-color: var(--accent); }
select.tool-input { appearance: none; cursor: pointer; }
.tool-output { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; line-height: 1.6; white-space: pre; }

.tool-meter { font-size: 13px; color: var(--muted); padding: 2px 0; }
.tool-meter.is-good { color: #8fe388; }
.tool-meter.is-warn { color: #ffc24b; }
.tool-meter.is-bad { color: #ff7a7a; }

.tool-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin: 16px 0; flex-wrap: wrap; }
.tool-check { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); cursor: pointer; }
.tool-check input { accent-color: var(--accent); width: 16px; height: 16px; }

.tool-tabs { display: inline-flex; border: 1px solid var(--line); border-radius: 100px; padding: 4px; gap: 4px; width: fit-content; }
.tool-tab { padding: 7px 18px; border-radius: 100px; font-size: 14px; color: var(--muted); transition: background .3s, color .3s; }
.tool-tab.is-active { background: var(--accent); color: var(--accent-ink); font-weight: 600; }

/* Google SERP preview card (authentic light styling) */
.tool-preview { display: flex; align-items: flex-start; }
.serp { background: #fff; border-radius: 12px; padding: 18px 20px; width: 100%; font-family: Arial, sans-serif; box-shadow: 0 10px 40px rgba(0,0,0,0.35); }
.serp__url { display: flex; align-items: center; gap: 8px; color: #202124; font-size: 14px; margin-bottom: 4px; }
.serp__fav { width: 22px; height: 22px; border-radius: 50%; background: #f1f3f4; color: #5f6368; display: grid; place-items: center; font-weight: 700; font-size: 13px; }
.serp__title { color: #1a0dab; font-size: 20px; line-height: 1.3; margin: 2px 0 3px; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.serp__desc { color: #4d5156; font-size: 14px; line-height: 1.5; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.serp--mobile { max-width: 360px; }
.serp--mobile .serp__title { font-size: 18px; -webkit-line-clamp: 3; }
.serp--mobile .serp__desc { -webkit-line-clamp: 3; }

/* stat cards */
.tool-stats { display: flex; flex-wrap: wrap; gap: 12px; margin: 18px 0; }
.tool-stats--grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat-card { flex: 1; min-width: 110px; border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; background: var(--bg); }
.stat-card__num { font-family: var(--font-display); font-weight: 700; font-size: clamp(24px, 3vw, 34px); letter-spacing: -0.02em; color: var(--accent); }
.stat-card__label { font-size: 13px; color: var(--muted); margin-top: 4px; }

/* keyword density tables */
.kd-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 6px; }
.kd-col h4 { font-family: var(--font-display); font-weight: 700; font-size: 15px; margin-bottom: 10px; color: var(--fg); }
.kd-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.kd-table td { padding: 7px 8px; border-bottom: 1px solid var(--line); color: var(--muted); }
.kd-table td:first-child { color: var(--fg); }
.kd-table td:last-child { color: var(--accent); text-align: right; }
.tool-empty { color: var(--muted); font-size: 15px; }

.tool-copy, .tool-run { white-space: nowrap; }

/* Tool pages: hub grid */
.tool-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2vw, 24px); }
.tool-card { display: flex; flex-direction: column; gap: 10px; padding: clamp(22px, 3vw, 32px); border: 1px solid var(--line); border-radius: 18px; background: var(--bg-2); transition: border-color .3s, transform .5s var(--ease); min-height: 180px; }
.tool-card:hover { border-color: var(--accent); transform: translateY(-5px); }
.tool-card__name { font-family: var(--font-display); font-weight: 700; font-size: 20px; letter-spacing: -0.01em; }
.tool-card__desc { color: var(--muted); font-size: 15px; line-height: 1.55; flex: 1; }
.tool-card__more { color: var(--accent); font-size: 14px; font-weight: 600; }

@media (max-width: 900px) {
  .tool-grid { grid-template-columns: 1fr; }
  .kd-grid { grid-template-columns: 1fr; }
  .tool-stats--grid { grid-template-columns: repeat(2, 1fr); }
  .tool-cards { grid-template-columns: 1fr; }
}