/* ============ RESET & BASE ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --black: #0a0a0a;
  --gray: #555;
  --light: #f4f4f4;
  --border: #e3e3e3;
  --live: #16a34a;   /* LIVE green */
  --live-soft: rgba(22,163,74,.15);
}

html { scroll-behavior: smooth; }

body {
  background: #ffffff;
  color: #0a0a0a;
  font-family: "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
}

/* ============ TOPBAR ============ */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  z-index: 100;
  gap: 16px;
}

.brand {
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 2px;
  text-decoration: none;
  color: var(--black);
  white-space: nowrap;
}

.dot { color: var(--live); }

.nav { display: flex; gap: 4px; flex-wrap: wrap; }

.nav-link {
  text-decoration: none;
  color: var(--black);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 999px;
  transition: background .15s;
}

.nav-link:hover { background: var(--light); }
.nav-link.active { background: var(--black); color: #fff; }

.topbar-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* LIVE badge (green) */
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-weight: 800;
  font-size: 0.8rem;
  letter-spacing: 2px;
  color: var(--live);
  background: var(--live-soft);
  border: 2px solid var(--live);
  padding: 5px 14px;
  border-radius: 999px;
}

.pulse {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--live);
  animation: pulse 1.4s infinite;
}

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(22,163,74,.55); }
  70%  { box-shadow: 0 0 0 9px rgba(22,163,74,0); }
  100% { box-shadow: 0 0 0 0 rgba(22,163,74,0); }
}

.datetime {
  font-variant-numeric: tabular-nums;
  font-size: 0.85rem;
  color: var(--gray);
  white-space: nowrap;
}

.burger {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1.2rem;
  padding: 4px 10px;
  cursor: pointer;
}

/* ============ HERO ============ */
.hero {
  padding: 160px 20px 50px;
  text-align: center;
}

.title {
  font-size: clamp(3rem, 9vw, 6rem);
  font-weight: 900;
  letter-spacing: -2px;
  line-height: 1;
}

.slogan {
  max-width: 680px;
  margin: 22px auto 36px;
  font-size: clamp(1rem, 2.4vw, 1.25rem);
  color: #222;
}

.search-box {
  display: flex;
  max-width: 560px;
  margin: 0 auto;
  border: 2px solid var(--black);
  border-radius: 999px;
  overflow: hidden;
}

.search-box input {
  flex: 1;
  border: none;
  outline: none;
  padding: 15px 24px;
  font-size: 1.05rem;
  background: #fff;
  color: var(--black);
}

.search-box button {
  border: none;
  background: var(--black);
  color: #fff;
  font-weight: 700;
  padding: 0 32px;
  cursor: pointer;
  font-size: 1rem;
  transition: background .2s;
}

.search-box button:hover { background: #333; }

/* ============ KEYWORD CHIPS (10 examples) ============ */
.keyword-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  max-width: 720px;
  margin: 20px auto 0;
}

.chip {
  background: #fff;
  color: var(--black);
  border: 1px solid var(--border);
  border-radius: 999px;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 7px 15px;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s, transform .12s;
}

.chip:hover {
  background: var(--black);
  color: #fff;
  border-color: var(--black);
  transform: translateY(-1px);
}

.chip:active { transform: translateY(0); }

/* ============ RESULTS ============ */
.results {
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px 20px 60px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.card {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 30px;
  box-shadow: 0 4px 20px rgba(0,0,0,.04);
  scroll-margin-top: 90px;
}

.card h2 { font-size: 1.25rem; margin-bottom: 20px; }

.keyword-title span, .kw-inline {
  background: var(--light);
  padding: 2px 10px;
  border-radius: 8px;
  font-family: monospace;
}

/* ============ SCORE ============ */
.score-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
  align-items: center;
}

.gauge-wrap { position: relative; }

.score-label {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -40%);
  font-size: 2.4rem;
  font-weight: 900;
}

.verdict h3 { font-size: 1.15rem; margin-bottom: 8px; }
.verdict p { color: var(--gray); margin-bottom: 12px; }

.quick-tips li {
  list-style: none;
  padding: 6px 0 6px 24px;
  position: relative;
  font-size: 0.95rem;
}

.quick-tips li::before {
  content: "\2192";
  position: absolute;
  left: 0;
  font-weight: 700;
  color: var(--live);
}

/* ============ PUBLIC APIs ============ */
.api-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.api-box {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  font-size: 0.92rem;
}

.api-box h3 { font-size: 1rem; margin-bottom: 8px; }

.tag {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 1px;
  background: var(--live-soft);
  color: var(--live);
  padding: 2px 8px;
  border-radius: 999px;
  vertical-align: middle;
}

.api-desc { color: var(--gray); font-size: 0.8rem; margin-top: 6px; }

/* ============ STEPS SCHEMA ============ */
.schema-intro { margin-bottom: 24px; color: #222; }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 20px;
}

.step {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.step-num { font-weight: 900; color: var(--live); letter-spacing: 2px; }
.step h3 { margin: 8px 0; font-size: 1.02rem; }
.step p { font-size: 0.9rem; color: var(--gray); }
.step code { background: var(--light); padding: 1px 5px; border-radius: 5px; }

/* ============ JSON-LD GENERATOR ============ */
.gen-title { margin: 30px 0 14px; font-size: 1.1rem; }

.generator {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 20px;
}

.gen-controls { display: flex; flex-direction: column; gap: 12px; }

.gen-controls label { font-size: 0.85rem; font-weight: 600; }

.gen-controls input, .gen-controls select {
  width: 100%;
  margin-top: 4px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  outline: none;
}

.gen-controls input:focus, .gen-controls select:focus { border-color: var(--black); }

.btn-outline {
  background: #fff;
  border: 2px solid var(--black);
  border-radius: 8px;
  padding: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: background .15s;
}

.btn-outline:hover { background: var(--black); color: #fff; }

.gen-output { position: relative; }

.copy-btn {
  position: absolute;
  top: 10px; right: 10px;
  background: var(--black);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 7px 16px;
  font-weight: 700;
  font-size: 0.8rem;
  cursor: pointer;
}

.copy-btn:hover { background: var(--live); }

.gen-output pre {
  background: var(--black);
  color: #e6e6e6;
  border-radius: 12px;
  padding: 20px;
  font-size: 0.78rem;
  overflow: auto;
  max-height: 420px;
  margin: 0;
}

/* ============ CHECKLIST ============ */
.checklist {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 10px;
}

.checklist label {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  cursor: pointer;
  font-size: 0.92rem;
  transition: background .15s;
}

.checklist label:hover { background: var(--light); }
.checklist input { width: 18px; height: 18px; accent-color: var(--black); }
.check-total { margin-top: 16px; color: var(--gray); font-size: 0.95rem; }

/* ============ CHARTS ============ */
.charts-section { display: flex; flex-direction: column; gap: 32px; }
.chart-wrap { position: relative; height: 320px; }

/* ============ FAQ ============ */
.faq-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 10px;
  overflow: hidden;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 700;
  padding: 15px 18px;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-item summary::after { content: "+"; font-size: 1.3rem; font-weight: 400; }
.faq-item[open] summary::after { content: "\2212"; }
.faq-item summary:hover { background: var(--light); }
.faq-item p { padding: 0 18px 16px; color: var(--gray); font-size: 0.94rem; }
.faq-item code { background: var(--light); padding: 1px 5px; border-radius: 5px; }

/* ============ CONTACT ============ */
.contact-form { display: flex; flex-direction: column; gap: 14px; max-width: 560px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.contact-form label { font-size: 0.85rem; font-weight: 600; }

.contact-form input, .contact-form textarea {
  width: 100%;
  margin-top: 4px;
  padding: 11px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  outline: none;
  font-family: inherit;
  resize: vertical;
}

.contact-form input:focus, .contact-form textarea:focus { border-color: var(--black); }

.btn-dark {
  background: var(--black);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  max-width: 220px;
}

.btn-dark:hover { background: var(--live); }
.form-status { font-size: 0.9rem; color: var(--live); font-weight: 600; }
.about-small { color: var(--gray); margin-top: 10px; }

/* ============ FOOTER ============ */
.footer {
  border-top: 1px solid var(--border);
  padding: 34px 20px 44px;
  text-align: center;
  color: var(--gray);
  font-size: 0.85rem;
}

.tech-icons {
  display: flex;
  justify-content: center;
  gap: 26px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.tech {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--black);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  .generator { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .score-grid { grid-template-columns: 1fr; }
  .gauge-wrap { max-width: 260px; margin: 0 auto; }
  .datetime { display: none; }
  .hero { padding-top: 130px; }
  .form-row { grid-template-columns: 1fr; }

  .burger { display: block; }
  .nav {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 12px 20px 18px;
    gap: 6px;
  }
  .nav.open { display: flex; }
}