:root {
  --orange: #ff4500;
  --ink: #111315;
  --muted: #5f666d;
  --cream: #faf7f2;
  --card: #ffffff;
  --blue: #102a56;
  --green: #1f6f50;
  --line: rgba(17, 19, 21, 0.1);
  --shadow: 0 24px 70px rgba(16, 42, 86, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--cream);
  color: var(--ink);
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.04em;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
}

.brand span {
  color: var(--orange);
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

.nav a:hover {
  color: var(--ink);
}

.hero {
  width: min(1120px, calc(100% - 32px));
  margin: 28px auto 0;
  min-height: 620px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}

h1 {
  margin: 22px 0 18px;
  max-width: 700px;
  font-size: clamp(48px, 7vw, 86px);
  line-height: 0.94;
  letter-spacing: -0.075em;
}

h1 strong {
  color: var(--orange);
}

.lede {
  max-width: 620px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.6;
}

.actions {
  margin-top: 32px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 15px;
}

.button.primary {
  background: var(--orange);
  color: white;
  box-shadow: 0 14px 34px rgba(255, 69, 0, 0.22);
}

.button.secondary {
  background: white;
  border: 1px solid var(--line);
  color: var(--ink);
}

.hero-card {
  position: relative;
  padding: 18px;
  border-radius: 36px;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.8);
}

.hero-card img {
  width: 100%;
  display: block;
  border-radius: 28px;
}

.floating-note {
  position: absolute;
  left: -22px;
  bottom: 34px;
  max-width: 250px;
  padding: 16px;
  border-radius: 22px;
  background: white;
  box-shadow: 0 18px 50px rgba(17, 19, 21, 0.14);
  border: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.45;
  color: var(--muted);
}

.floating-note b {
  display: block;
  color: var(--ink);
  margin-bottom: 4px;
}

.section {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 74px 0;
}

.section h2 {
  margin: 0 0 14px;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1;
  letter-spacing: -0.06em;
}

.section p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.65;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 28px;
}

.card {
  padding: 26px;
  border-radius: 28px;
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: 0 14px 45px rgba(16, 42, 86, 0.06);
}

.card h3 {
  margin: 0 0 10px;
  font-size: 20px;
  letter-spacing: -0.035em;
}

.card p {
  margin: 0;
  font-size: 15.5px;
}

.page {
  width: min(860px, calc(100% - 32px));
  margin: 40px auto 90px;
  padding: 42px;
  border-radius: 32px;
  background: white;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.page h1 {
  font-size: clamp(42px, 6vw, 64px);
}

.page h2 {
  margin-top: 34px;
  letter-spacing: -0.04em;
}

.page p,
.page li {
  color: var(--muted);
  line-height: 1.7;
}

.input,
textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  font: inherit;
  background: #fff;
}

textarea {
  min-height: 140px;
  resize: vertical;
}

.form {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.site-footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 14px;
}

.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

@media (max-width: 840px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    gap: 14px;
    flex-wrap: wrap;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-bottom: 40px;
  }

  .floating-note {
    position: static;
    margin-top: 14px;
    max-width: none;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .page {
    padding: 28px;
  }
}

.concept-card {
  min-height: 520px;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 25% 20%, rgba(255, 69, 0, 0.16), transparent 32%),
    radial-gradient(circle at 80% 10%, rgba(16, 42, 86, 0.12), transparent 30%),
    linear-gradient(145deg, rgba(255,255,255,0.9), rgba(250,247,242,0.72));
}

.phone-shell {
  width: min(330px, 100%);
  padding: 18px;
  border-radius: 38px;
  background: #111315;
  box-shadow: 0 26px 80px rgba(17, 19, 21, 0.24);
}

.phone-top {
  width: 74px;
  height: 7px;
  margin: 0 auto 18px;
  border-radius: 999px;
  background: rgba(255,255,255,0.22);
}

.vibe-card {
  padding: 18px;
  border-radius: 24px;
  background: #fff;
  color: var(--ink);
  border: 1px solid rgba(255,255,255,0.1);
}

.vibe-card + .vibe-card {
  margin-top: 12px;
}

.vibe-card.active {
  background: #fff7f2;
}

.vibe-card .tag {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 69, 0, 0.1);
  color: var(--orange);
  font-size: 12px;
  font-weight: 800;
}

.vibe-card .tag.blue {
  background: rgba(16, 42, 86, 0.08);
  color: var(--blue);
}

.vibe-card strong {
  display: block;
  font-size: 19px;
  letter-spacing: -0.035em;
}

.vibe-card p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.45;
  font-size: 14px;
}

.form-status {
  min-height: 24px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.button:disabled {
  opacity: 0.58;
  cursor: not-allowed;
}

.feedback-note {
  margin-top: 22px;
}