/* ============================================================
   SONOMER — Ultrasonic Marinating Technology
   Premium · Minimal · High-Tech · Consumer Electronics
   Palette: white / black / charcoal + one accent (ember orange)
   ============================================================ */

:root {
  --black: #111111;
  --charcoal: #1c1c1e;
  --gray-800: #2c2c2e;
  --gray-600: #6e6e73;
  --gray-400: #a1a1a6;
  --gray-100: #f5f5f7;
  --white: #ffffff;
  --accent: #ff5c28;          /* ember orange — CTA */
  --accent-dark: #e64a18;
  --radius: 14px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--black);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, video { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.02em;
  border: none;
  border-radius: 999px;
  padding: 16px 32px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease;
  white-space: nowrap;
}

.btn-accent {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 8px 24px rgba(255, 92, 40, 0.32);
}

.btn-accent:hover { background: var(--accent-dark); }

.btn-accent:active { transform: translateY(1px); }

.btn-sm { padding: 10px 20px; font-size: 14px; }

.btn-block { width: 100%; }

/* ---------------- Header / Nav ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}

.logo {
  font-weight: 800;
  font-size: 22px;
  letter-spacing: 0.06em;
  color: var(--black);
  text-decoration: none;
}

.main-nav { display: flex; gap: 32px; }

.main-nav a {
  color: var(--gray-600);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--black);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ---------------- Hero ---------------- */
.hero {
  background: linear-gradient(180deg, #ffffff 0%, var(--gray-100) 100%);
  padding: 72px 0 88px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.badge {
  display: inline-block;
  background: var(--black);
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
}

h1 {
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.hero-sub {
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 12px;
}

.hero-desc {
  font-size: 18px;
  color: var(--gray-600);
  max-width: 460px;
  margin-bottom: 20px;
}

.hero-offer {
  font-size: 15px;
  font-weight: 700;
  color: var(--black);
  margin-bottom: 20px;
}

/* Hero product image — displayed at natural ratio, never cropped */
.hero-visual { display: flex; justify-content: center; }

.hero-product {
  width: 100%;
  max-width: 480px;
  height: auto;
  border-radius: 24px;
  box-shadow: var(--shadow);
}

/* ---------------- Forms ---------------- */
.lead-form { max-width: 480px; }

.form-row {
  display: flex;
  gap: 10px;
  background: var(--white);
  border: 1.5px solid rgba(0, 0, 0, 0.12);
  border-radius: 999px;
  padding: 6px;
  box-shadow: var(--shadow);
  transition: border-color 0.2s ease;
}

.form-row:focus-within { border-color: var(--accent); }

.form-row input[type="email"] {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  font-family: var(--font);
  font-size: 16px;
  padding: 10px 18px;
  color: var(--black);
}

.form-row input[type="email"]::placeholder { color: var(--gray-400); }

.form-row .btn { padding: 14px 26px; font-size: 15px; }

.form-error {
  color: #d93025;
  font-size: 14px;
  font-weight: 600;
  margin-top: 10px;
}

.form-error[hidden] { display: none; }

.form-note {
  font-size: 13px;
  color: var(--gray-600);
  margin-top: 12px;
}

/* ---------------- Sections ---------------- */
.section { padding: 88px 0; }

.section-title {
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 800;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 20px;
  line-height: 1.2;
}

.section-lead {
  font-size: 18px;
  color: var(--gray-600);
  text-align: center;
  max-width: 640px;
  margin: 0 auto 20px;
}

.section-sub {
  font-size: 16px;
  color: var(--gray-600);
  text-align: center;
  max-width: 560px;
  margin: 0 auto 24px;
}

/* Problem VS */
.problem { background: var(--gray-100); }

.vs-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
  max-width: 760px;
  margin: 48px auto 0;
}

.vs-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
}

.vs-old .vs-label { color: var(--gray-600); }

.vs-new { border: 2px solid var(--accent); }

.vs-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--black);
  margin-bottom: 8px;
}

.vs-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--black);
}

.vs-divider {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--black);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
}

/* Benefits cards */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.card {
  background: var(--gray-100);
  border-radius: var(--radius);
  padding: 40px 28px;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.card-icon { font-size: 36px; display: block; margin-bottom: 16px; }

.card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }

.card p { font-size: 15px; color: var(--gray-600); }

/* Video placeholder */
.demo { background: var(--black); }

.demo .section-title { color: var(--white); }

.video-placeholder {
  max-width: 820px;
  margin: 48px auto 0;
  aspect-ratio: 16 / 9;
  border-radius: 20px;
  background: linear-gradient(145deg, #26262a, #141416);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--white);
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.play-btn {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: var(--white);
  cursor: pointer;
  margin-bottom: 20px;
  box-shadow: 0 8px 28px rgba(255, 92, 40, 0.4);
  transition: transform 0.2s ease;
}

.play-btn:hover { transform: scale(1.06); }

.play-icon { font-size: 22px; }

.ph-title {
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 6px;
}

.ph-sub {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
}

/* How it works steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.step {
  background: var(--gray-100);
  border-radius: var(--radius);
  padding: 40px 28px;
  text-align: center;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--black);
  color: var(--white);
  font-weight: 800;
  font-size: 15px;
  margin-bottom: 16px;
}

.step h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }

.step p { font-size: 15px; color: var(--gray-600); }

/* Kickstarter */
.kickstarter { background: var(--gray-100); }

.early-bird {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  font-weight: 800;
  font-size: 16px;
  padding: 12px 28px;
  border-radius: 999px;
  margin: 8px auto 32px;
  text-align: center;
}

.kickstarter .lead-form,
.final-cta .lead-form { margin: 0 auto; }

.kickstarter .form-row,
.final-cta .form-row { max-width: 480px; margin: 0 auto; }

/* Final CTA */
.final-cta { background: var(--black); }

.final-cta .section-title { color: var(--white); }

.final-cta .section-lead { color: rgba(255, 255, 255, 0.7); }

.final-cta .form-note { color: rgba(255, 255, 255, 0.55); text-align: center; }

.final-cta .form-error { text-align: center; }

/* ---------------- Footer ---------------- */
.site-footer {
  background: var(--black);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 40px 0;
}

.footer-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-logo {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--white);
}

.footer-text {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

/* ---------------- Thank You page ---------------- */
.thank-you-page {
  min-height: 100vh;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
}

.ty-wrap { width: 100%; padding: 24px; }

.ty-card {
  max-width: 520px;
  margin: 0 auto;
  background: var(--white);
  border-radius: 24px;
  padding: 56px 40px;
  text-align: center;
  box-shadow: var(--shadow);
}

.ty-emoji { font-size: 56px; display: block; margin-bottom: 20px; }

.ty-card h1 {
  font-size: 34px;
  margin-bottom: 12px;
}

.ty-sub {
  font-size: 18px;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 8px;
}

.ty-body {
  font-size: 15px;
  color: var(--gray-600);
  margin-bottom: 28px;
}

.ty-kicker {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-600);
  margin-bottom: 16px;
}

.ty-back {
  display: inline-block;
  margin-top: 24px;
  color: var(--gray-600);
  font-size: 14px;
  text-decoration: none;
}

.ty-back:hover { color: var(--black); }

/* ---------------- Responsive ---------------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-copy { order: 2; }
  .hero-visual { order: 1; }
  .hero { padding: 48px 0 64px; }

  .main-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--white);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    padding: 12px 24px;
    box-shadow: var(--shadow);
  }

  .main-nav.open { display: flex; }

  .main-nav a {
    padding: 14px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  }

  .main-nav a:last-child { border-bottom: none; }

  .nav-toggle { display: flex; }

  .nav-cta { display: none; }

  .cards, .steps { grid-template-columns: 1fr; }

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

  .vs-divider {
    width: 44px;
    height: 44px;
    margin: 0 auto;
  }

  .form-row {
    flex-direction: column;
    border-radius: 20px;
    background: var(--white);
  }

  .form-row input[type="email"] {
    border-bottom: 1.5px solid rgba(0, 0, 0, 0.08);
    padding: 14px 18px;
  }

  .form-row .btn { width: 100%; }

  .section { padding: 64px 0; }
}

@media (max-width: 480px) {
  .container { padding: 0 18px; }

  h1 { font-size: 32px; }

  .footer-wrap { flex-direction: column; text-align: center; }
}