:root {
  --primary: #08bfda;
  --primary-light: #65e6f6;
  --primary-dark: #068ca0;
  --secondary: #7c3aed;
  --accent: #ff6b6b;
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-2: #334155;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --border: rgba(148, 163, 184, 0.2);
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at 12% 8%, rgba(8, 191, 218, 0.15), transparent 28%),
              radial-gradient(circle at 88% 20%, rgba(124, 58, 237, 0.12), transparent 30%),
              linear-gradient(180deg, #0f172a 0%, #131e33 45%, #1e293b 100%);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  position: relative;
}

.bg-glow {
  position: fixed;
  border-radius: 999px;
  filter: blur(80px);
  z-index: -1;
  opacity: 0.4;
  pointer-events: none;
}

.bg-glow-1 {
  width: 260px;
  height: 260px;
  background: var(--primary);
  top: -80px;
  right: -50px;
}

.bg-glow-2 {
  width: 300px;
  height: 300px;
  background: var(--secondary);
  bottom: 18%;
  left: -120px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 16px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(8px);
  background: rgba(15, 23, 42, 0.78);
  border-bottom: 1px solid rgba(101, 230, 246, 0.15);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand img {
  width: 34px;
  height: 34px;
  filter: drop-shadow(0 0 8px rgba(8, 191, 218, 0.45));
}

.btn-link {
  color: var(--primary-light);
  text-decoration: none;
  font-weight: 600;
}

.btn-link:hover {
  color: #ffffff;
}

.faq-page {
  width: min(1100px, 100% - 28px);
  margin: 0 auto;
  padding: 34px 0 54px;
}

.hero {
  text-align: center;
  margin-bottom: 26px;
}

.kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--primary-light);
  font-size: 0.78rem;
  font-weight: 700;
}

.hero h1 {
  margin: 12px auto 10px;
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.4vw, 2.8rem);
  max-width: 820px;
  line-height: 1.15;
}

.subtitle {
  margin: 0 auto;
  color: var(--muted);
  max-width: 760px;
  line-height: 1.6;
}

.tools {
  margin: 24px auto 0;
  max-width: 960px;
}

#faq-search {
  width: 100%;
  border: 1px solid var(--border);
  background: rgba(30, 41, 59, 0.8);
  color: var(--text);
  border-radius: 14px;
  padding: 14px 16px;
  font-size: 0.98rem;
  outline: none;
}

#faq-search:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(8, 191, 218, 0.22);
}

.chip-row {
  margin-top: 12px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.chip {
  border: 1px solid rgba(101, 230, 246, 0.4);
  background: rgba(15, 23, 42, 0.72);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.9rem;
  cursor: pointer;
}

.chip.active {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-color: transparent;
  color: #ffffff;
}

.faq-list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.85) 0%, rgba(19, 30, 51, 0.85) 100%);
  overflow: hidden;
}

.faq-item.hidden {
  display: none;
}

.faq-question {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-body);
  padding: 17px 18px;
  cursor: pointer;
}

.faq-question:hover {
  color: var(--primary-light);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 18px;
  transition: max-height 0.28s ease;
}

.faq-item.open .faq-answer {
  max-height: 220px;
  padding-bottom: 16px;
}

.faq-answer p {
  margin: 0 0 10px;
  color: var(--muted);
  line-height: 1.55;
}

.api-ref {
  color: #d8ecff;
  font-size: 0.88rem;
  background: rgba(8, 191, 218, 0.08);
  border: 1px solid rgba(8, 191, 218, 0.25);
  padding: 8px 10px;
  border-radius: 10px;
}

.contact-box {
  margin: 26px 0 8px;
  padding: 24px;
  border-radius: 20px;
  border: 1px solid rgba(101, 230, 246, 0.25);
  background: linear-gradient(125deg, rgba(8, 191, 218, 0.14), rgba(124, 58, 237, 0.12));
  text-align: center;
}

.contact-box h2 {
  margin: 0 0 8px;
  font-family: var(--font-heading);
}

.contact-box p {
  margin: 0 0 16px;
  color: var(--text);
}

.btn-primary {
  display: inline-block;
  text-decoration: none;
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 12px;
  padding: 11px 18px;
  font-weight: 600;
}

.btn-primary:hover {
  filter: brightness(1.08);
}

.footer {
  text-align: center;
  padding: 28px 14px 34px;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer p {
  margin: 4px 0;
}

@media (max-width: 720px) {
  .topbar {
    padding: 14px;
  }

  .brand span {
    font-size: 1rem;
  }

  .btn-link {
    font-size: 0.88rem;
  }

  .faq-question {
    font-size: 0.95rem;
  }

  .faq-item.open .faq-answer {
    max-height: 360px;
  }
}