:root {
  --accent: #229ED9;
  --accent-dark: #1b7fb0;
  --ink: #16202b;
  --ink-soft: #4a5a68;
  --bg-alt: #f4f8fb;
  --border: #e3e9ee;
  --radius: 14px;
  --max-width: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  line-height: 1.5;
  background: #fff;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

h1, h2, h3 { line-height: 1.25; margin: 0 0 12px; }
h1 { font-size: clamp(28px, 5vw, 44px); font-weight: 800; }
h2 { font-size: clamp(24px, 4vw, 32px); font-weight: 800; text-align: center; }
h3 { font-size: 18px; font-weight: 700; }
p { margin: 0 0 12px; color: var(--ink-soft); }

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}
.logo {
  font-weight: 800;
  font-size: 18px;
  color: var(--ink);
}
.logo__accent { color: var(--accent); }

/* Buttons */
.btn {
  display: inline-block;
  border: none;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  text-align: center;
}
.btn--primary {
  background: var(--accent);
  color: #fff;
}
.btn--primary:hover { background: var(--accent-dark); }
.btn--small { padding: 9px 18px; font-size: 14px; }
.btn--large { padding: 15px 30px; font-size: 17px; box-shadow: 0 8px 24px rgba(34, 158, 217, 0.28); }
.btn--large:hover { transform: translateY(-1px); }

/* Hero */
.hero { padding: 48px 0 40px; }
.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}
.hero__subhead { font-size: 17px; }
.hero__note { font-size: 13px; color: #7b8996; margin-top: 10px; }

/* Phone mock */
.hero__mock { display: flex; justify-content: center; }
.mock-phone {
  width: 100%;
  max-width: 320px;
  background: #0f1c26;
  border-radius: 28px;
  padding: 14px;
  box-shadow: 0 20px 50px rgba(15, 28, 38, 0.25);
}
.mock-chat {
  background: #e8f0f5;
  border-radius: 18px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mock-bubble {
  max-width: 88%;
  padding: 10px 13px;
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.4;
}
.mock-bubble--in {
  background: #fff;
  align-self: flex-start;
  border-bottom-left-radius: 4px;
  color: var(--ink);
}
.mock-bubble--out {
  background: var(--accent);
  color: #fff;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}
.mock-bubble--result { width: 100%; max-width: 100%; }
.mock-score { display: flex; align-items: center; gap: 8px; font-size: 15px; margin-bottom: 8px; }
.mock-score__dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.mock-score__dot--green { background: #34c759; }
.mock-criteria {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}
.mock-criteria span {
  background: var(--bg-alt);
  border-radius: 8px;
  padding: 3px 8px;
  font-size: 12px;
  font-weight: 600;
}
.mock-hint { font-size: 12px; color: #b8860b; }

/* Sections */
.section { padding: 56px 0; }
.section--alt { background: var(--bg-alt); }

/* Cards */
.cards { display: grid; gap: 20px; margin-top: 28px; }
.cards--3 { grid-template-columns: 1fr; }
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}
.card__icon { font-size: 30px; margin-bottom: 10px; }
.card p { color: var(--ink); }

/* Steps */
.steps { display: grid; gap: 24px; margin-top: 28px; }
.step { display: flex; gap: 16px; align-items: flex-start; }
.step__num {
  flex: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step p { color: var(--ink); margin: 0; }

/* Benefits */
.benefits {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.benefits li { color: var(--ink); font-size: 16px; }

/* FAQ */
.faq { margin-top: 28px; display: grid; gap: 20px; max-width: 720px; margin-left: auto; margin-right: auto; }
.faq__item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
}

/* Pricing */
.pricing__card { position: relative; }
.pricing__card--popular { border-color: var(--accent); border-width: 2px; }
.pricing__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
}
.pricing__checks { font-weight: 700; color: var(--ink-soft); margin-bottom: 6px; }
.pricing__price { font-size: 30px; font-weight: 800; color: var(--ink); }

/* Final CTA */
.cta { background: var(--ink); text-align: center; }
.cta__inner h2, .cta__inner p { color: #fff; }
.cta__inner p { color: #c3d3dd; max-width: 480px; margin-left: auto; margin-right: auto; }

/* Footer */
.footer { padding: 24px 0; text-align: center; }
.footer p { font-size: 13px; color: #8a97a3; margin: 0; }

/* Tablet+ */
@media (min-width: 720px) {
  .cards--3 { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 900px) {
  .hero__grid { grid-template-columns: 1.1fr 0.9fr; }
}