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

:root {
  --cyan: #06B6D4;
  --mint: #14E0A0;
  --coral: #FF6F61;
  --orange: #FF8A3D;
  --ink: #0f172a;
  --ink-soft: #475569;
  --line: #e2e8f0;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --brand-grad: linear-gradient(135deg, #06B6D4 0%, #14E0A0 100%);
  --highlight-grad: linear-gradient(135deg, #FF6F61 0%, #FF8A3D 100%);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}
.nav.scrolled {
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
}
.nav-inner {
  max-width: 1120px; margin: 0 auto; padding: 16px 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.nav-brand img { width: 34px; height: 34px; border-radius: 9px; }
.nav-brand span { font-weight: 800; font-size: 1.2rem; color: var(--ink); letter-spacing: -0.5px; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { text-decoration: none; color: var(--ink-soft); font-weight: 500; font-size: 0.95rem; transition: color 0.2s; }
.nav-links a:hover { color: var(--ink); }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 600; font-size: 0.95rem; text-decoration: none;
  padding: 11px 22px; border-radius: 100px; border: none; cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s;
}
.btn-primary { background: var(--highlight-grad); color: #fff; box-shadow: 0 6px 20px rgba(255,111,97,0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(255,111,97,0.45); }
.btn-ghost { background: rgba(255,255,255,0.15); color: #fff; border: 1px solid rgba(255,255,255,0.35); }
.btn-ghost:hover { background: rgba(255,255,255,0.25); transform: translateY(-2px); }
.btn[aria-disabled="true"] { opacity: 0.6; cursor: default; pointer-events: none; }
.nav-links .btn-primary { color: #fff; }
.lang-btn {
  display: inline-flex; align-items: center; text-decoration: none;
  background: transparent; border: 1.5px solid var(--line); color: var(--ink-soft);
  font-family: inherit; font-weight: 700; font-size: 0.8rem; letter-spacing: 0.5px;
  padding: 7px 12px; border-radius: 100px; cursor: pointer; transition: all 0.2s;
}
.nav.scrolled .lang-btn { border-color: var(--line); }
.lang-btn:hover { color: var(--ink); border-color: var(--ink-soft); }
@media (max-width: 720px) { .nav-links a:not(.btn):not(.lang-btn) { display: none; } }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: linear-gradient(150deg, #FF6F61 0%, #FF8A3D 22%, #06B6D4 62%, #14E0A0 100%);
  color: #fff;
  padding: 150px 0 100px;
  overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; width: 700px; height: 700px; border-radius: 50%;
  background: rgba(255,255,255,0.12); filter: blur(120px); top: -250px; right: -150px;
}
.hero-grid {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center;
  position: relative; z-index: 1;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.18); border: 1px solid rgba(255,255,255,0.3);
  border-radius: 100px; padding: 7px 16px; font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.5px; margin-bottom: 24px; backdrop-filter: blur(6px);
}
.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.2rem); font-weight: 900; line-height: 1.05;
  letter-spacing: -1.5px; margin-bottom: 22px;
}
.hero p { font-size: 1.2rem; opacity: 0.92; max-width: 460px; margin-bottom: 34px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-phone { display: flex; justify-content: center; }
.hero-phone img {
  width: 270px; border-radius: 34px; border: 9px solid #0f172a;
  background: #0f172a; box-shadow: 0 30px 60px rgba(0,0,0,0.35);
  animation: float 6s ease-in-out infinite;
}

@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-16px); } }

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero p { margin-left: auto; margin-right: auto; }
  .hero-cta { justify-content: center; }
  .hero-phone { margin-top: 40px; }
  .hero-phone img { width: 230px; }
}

/* ---------- Sections ---------- */
section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }

.eyebrow {
  display: inline-block; font-size: 0.8rem; font-weight: 700; letter-spacing: 1.5px;
  text-transform: uppercase; margin-bottom: 14px;
}
.eyebrow.cyan { color: var(--cyan); }
.eyebrow.coral { color: var(--coral); }

h2.section-title { font-size: clamp(1.9rem, 4vw, 2.7rem); font-weight: 800; letter-spacing: -0.8px; line-height: 1.15; margin-bottom: 16px; }
.section-lead { font-size: 1.12rem; color: var(--ink-soft); max-width: 540px; }

/* Hook band */
.hook { text-align: center; }
.hook h2 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 900; letter-spacing: -1px; max-width: 820px; margin: 0 auto; line-height: 1.15; }
.hook .grad-text {
  background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}

/* Feature rows */
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.feature.reverse .feature-media { order: 2; }
.feature-media { display: flex; justify-content: center; }
.feature-media .phone-wrap { position: relative; padding: 30px; }
.feature-media .phone-wrap::before {
  content: ''; position: absolute; inset: 0; margin: auto; width: 78%; height: 78%;
  background: var(--brand-grad); filter: blur(70px); opacity: 0.35; border-radius: 50%; z-index: 0;
}
.feature-media img {
  width: 240px; position: relative; z-index: 1;
  border-radius: 30px; border: 8px solid #0f172a; background: #0f172a;
  box-shadow: 0 20px 45px rgba(15,23,42,0.22);
}
.feature-body h2 { font-size: clamp(1.7rem, 3.5vw, 2.3rem); font-weight: 800; letter-spacing: -0.6px; margin-bottom: 14px; }
.feature-body p { font-size: 1.08rem; color: var(--ink-soft); margin-bottom: 18px; }
.feature-list { list-style: none; }
.feature-list li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 10px; color: var(--ink-soft); }

@media (max-width: 820px) {
  .feature { grid-template-columns: 1fr; gap: 32px; text-align: center; }
  .feature.reverse .feature-media { order: 0; }
  .feature-list li { text-align: left; }
  .feature-media img { width: 210px; }
}

/* Steps strip */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 48px; }
.step { text-align: center; }
.step-num {
  width: 52px; height: 52px; border-radius: 16px; margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.2rem; color: #fff; background: var(--highlight-grad);
  box-shadow: 0 8px 20px rgba(255,111,97,0.3);
}
.step h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
.step p { font-size: 0.92rem; color: var(--ink-soft); }
@media (max-width: 720px) { .steps { grid-template-columns: repeat(2, 1fr); } }

/* Dark mode band */
.darkband { background: var(--ink); color: #fff; text-align: center; }
.darkband h2 { color: #fff; }
.darkband .section-lead { color: #94a3b8; margin-left: auto; margin-right: auto; }
.darkband-phones { display: flex; justify-content: center; gap: 24px; margin-top: 48px; flex-wrap: wrap; }
.darkband-phones img {
  width: 200px; border-radius: 28px; border: 8px solid #000;
  background: #000; box-shadow: 0 20px 45px rgba(0,0,0,0.6);
}

/* Final CTA */
.cta {
  background: var(--brand-grad); color: #fff; text-align: center; border-radius: 32px;
  padding: 72px 32px; max-width: 1072px; margin: 0 auto 96px;
  position: relative; overflow: hidden;
}
.cta::before { content: ''; position: absolute; width: 500px; height: 500px; border-radius: 50%; background: rgba(255,255,255,0.15); filter: blur(100px); top: -200px; left: -100px; }
.cta h2 { font-size: clamp(2rem, 4.5vw, 3rem); font-weight: 900; letter-spacing: -1px; margin-bottom: 16px; position: relative; }
.cta p { font-size: 1.15rem; opacity: 0.92; margin-bottom: 32px; position: relative; }
.cta .hero-cta { justify-content: center; position: relative; }

/* Footer */
footer { background: var(--bg-alt); border-top: 1px solid var(--line); padding: 40px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-brand img { width: 30px; height: 30px; border-radius: 8px; }
.footer-brand span { font-weight: 800; color: var(--ink); }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-links a { color: var(--ink-soft); text-decoration: none; font-size: 0.9rem; }
.footer-links a:hover { color: var(--coral); }
.footer-copy { width: 100%; font-size: 0.82rem; color: #94a3b8; }

/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-phone img { animation: none; }
}

/* ---------- FAQ ---------- */
.faq-list { max-width: 720px; margin: 36px auto 0; text-align: left; }
.faq-item {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg);
  padding: 4px 22px;
  margin-bottom: 14px;
  transition: border-color 0.2s;
}
.faq-item[open] { border-color: var(--cyan); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
  padding: 16px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--cyan);
  transition: transform 0.2s;
  line-height: 1;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.7;
  padding: 0 0 18px;
  margin: 0;
}