@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500&display=swap');

:root {
  --bg:      #FFFFFF;
  --bg-2:    #F8F8F8;
  --bg-dark: #0D0D0D;
  --text:    #0D0D0D;
  --mid:     #6A6A6A;
  --light:   #BBBBBB;
  --border:  #EBEBEB;
  --white:   #FFFFFF;

  --hydra: #6FB35C;
  --glow:  #D4A830;
  --firm:  #9580C4;
  --clear: #5A9EC0;
  --calm:  #CB7A6E;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--bg); color: var(--text); overflow-x: hidden;
}

h1, h2, h3, h4 { font-family: 'Space Grotesk', sans-serif; font-weight: 700; }
h1 { font-size: clamp(3rem, 7vw, 6.5rem); line-height: 0.93; letter-spacing: -0.03em; }
h2 { font-size: clamp(2rem, 4vw, 3.8rem); line-height: 1.0;  letter-spacing: -0.025em; }
h3 { font-size: clamp(1.05rem, 1.6vw, 1.35rem); line-height: 1.25; letter-spacing: -0.01em; }
p  { font-size: clamp(0.88rem, 1.2vw, 0.98rem); line-height: 1.75; color: var(--mid); }

.label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.65rem; font-weight: 600;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--light); display: block; margin-bottom: 16px;
}

/* ── BUTTONS ── */
.btn-dark {
  display: inline-block; padding: 13px 30px;
  background: var(--text); color: var(--bg);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.74rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  text-decoration: none; border: none; cursor: pointer;
  transition: opacity .2s;
}
.btn-dark:hover { opacity: 0.72; }

.btn-outline {
  display: inline-block; padding: 13px 30px;
  background: transparent; color: var(--text);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.74rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  text-decoration: none; border: 1.5px solid var(--border);
  cursor: pointer; transition: border-color .2s, color .2s;
}
.btn-outline:hover { border-color: var(--text); }

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 24px 56px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, padding .3s;
}
nav.scrolled { border-bottom-color: var(--border); padding: 16px 56px; }

.nav-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.3rem; font-weight: 700; letter-spacing: 0.14em;
  color: var(--text); text-decoration: none;
}
.nav-links { display: flex; gap: 44px; list-style: none; }
.nav-links a {
  font-size: 0.72rem; font-weight: 500; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--light); text-decoration: none;
  transition: color .2s;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text); text-decoration: none;
  border: 1.5px solid var(--text); padding: 8px 18px;
  transition: background .2s, color .2s;
}
.nav-cta:hover { background: var(--text); color: var(--bg); }

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: grid; grid-template-columns: 1fr 1fr;
  align-items: center; padding: 130px 56px 80px; gap: 40px;
}
.hero-text h1 { margin-bottom: 24px; }
.hero-text h1 .muted { color: #D0D0D0; }
.hero-text p { max-width: 400px; margin-bottom: 40px; }
.hero-actions { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.hero-visual { display: flex; justify-content: center; align-items: center; }

/* ── MARQUEE ── */
.marquee-strip {
  background: var(--bg-dark); padding: 14px 0;
  overflow: hidden; white-space: nowrap;
}
.marquee-inner { display: inline-flex; animation: marquee 28s linear infinite; }
.marquee-inner span {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.65rem; font-weight: 600; letter-spacing: 0.22em;
  text-transform: uppercase; color: rgba(255,255,255,0.28); padding: 0 28px;
}
.marquee-inner .dot { color: rgba(255,255,255,0.1); padding: 0 4px; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ── HOW IT WORKS ── */
.how-it-works { padding: 120px 56px; }
.section-header { margin-bottom: 64px; }
.section-header h2 { max-width: 440px; }

.steps {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.step {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 40px 36px;
}

.step-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.65rem; font-weight: 700; letter-spacing: 0.14em;
  color: var(--light); display: block; margin-bottom: 40px;
}
.step-icon { margin-bottom: 28px; color: var(--text); }
.step h3 { margin-bottom: 10px; }

/* ── FORMULAS ── */
.formulas { padding: 120px 56px; border-top: 1px solid var(--border); }
.formulas .section-header {
  display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 48px;
}
.formula-grid {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px;
}
.formula-card {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 2px; overflow: hidden; cursor: pointer;
  transition: border-color .2s, transform .2s;
}
.formula-card:hover { border-color: var(--text); transform: translateY(-2px); }
.formula-swatch { height: 140px; width: 100%; display: block; }
.formula-body { padding: 20px 18px 24px; }
.formula-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; margin-bottom: 6px;
}
.formula-ingredient { font-size: 0.73rem; color: var(--mid); margin-bottom: 14px; line-height: 1.45; }
.formula-tag {
  font-size: 0.63rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--light);
}

/* ── DEVICE SECTION ── */
.device-section {
  padding: 120px 56px; border-top: 1px solid var(--border);
  display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: center;
}
.device-section h2 { margin-bottom: 14px; }
.device-section > div > p { margin-bottom: 44px; }
.device-specs { border-top: 1px solid var(--border); }
.device-spec {
  display: flex; justify-content: space-between; align-items: center;
  padding: 15px 0; border-bottom: 1px solid var(--border);
}
.device-spec-label { font-size: 0.78rem; color: var(--light); }
.device-spec-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.02em;
}
.device-visual {
  display: flex; justify-content: center; align-items: center; min-height: 440px;
}

/* ── MODEL / PRICING ── */
.model-section {
  padding: 120px 56px; background: var(--bg-dark);
  border-top: 1px solid var(--border);
}
.model-section .label { color: rgba(255,255,255,0.2); }
.model-section > h2 { color: var(--bg); max-width: 520px; margin-bottom: 12px; }
.model-section > p { color: rgba(255,255,255,0.38); max-width: 460px; margin-bottom: 72px; }
.model-cards {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
}
.model-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 2px;
  padding: 48px 40px;
}
.model-badge {
  display: inline-block; font-family: 'Space Grotesk', sans-serif;
  font-size: 0.62rem; font-weight: 700; letter-spacing: 0.16em;
  text-transform: uppercase; color: rgba(255,255,255,0.28);
  margin-bottom: 28px; display: block;
}
.model-price {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 4rem; font-weight: 700; letter-spacing: -0.05em;
  color: var(--bg); line-height: 1;
}
.model-price-note {
  font-size: 0.76rem; color: rgba(255,255,255,0.28); margin: 10px 0 28px;
}
.model-card p { font-size: 0.85rem; color: rgba(255,255,255,0.42); margin-bottom: 28px; }
.model-perks { display: flex; flex-direction: column; gap: 10px; }
.model-perk {
  font-size: 0.78rem; color: rgba(255,255,255,0.38);
  display: flex; align-items: center; gap: 12px;
}
.model-perk::before { content: '—'; color: rgba(255,255,255,0.18); }

/* ── CTA ── */
.cta-section {
  padding: 140px 56px; text-align: center; border-top: 1px solid var(--border);
}
.cta-section h2 { margin-bottom: 16px; }
.cta-section p { max-width: 380px; margin: 0 auto 44px; }
.cta-note { font-size: 0.72rem; color: var(--light); margin-top: 20px; letter-spacing: 0.04em; }

/* ── FOOTER ── */
footer {
  background: var(--bg-dark); padding: 32px 56px;
  display: flex; align-items: center; justify-content: space-between;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem; font-weight: 700; letter-spacing: 0.14em;
  color: var(--bg); text-decoration: none; opacity: 0.9;
}
.footer-links { display: flex; gap: 36px; list-style: none; }
.footer-links a {
  font-size: 0.68rem; font-weight: 500; letter-spacing: 0.08em;
  text-transform: uppercase; color: rgba(255,255,255,0.28);
  text-decoration: none; transition: color .2s;
}
.footer-links a:hover { color: rgba(255,255,255,0.7); }
.footer-copy { font-size: 0.66rem; color: rgba(255,255,255,0.2); }

/* ── PREORDER ── */
.preorder-hero {
  min-height: 65vh; padding: 150px 56px 80px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
  border-bottom: 1px solid var(--border);
}
.preorder-hero h1 { font-size: clamp(2.4rem, 5vw, 5rem); margin-bottom: 18px; }
.preorder-hero p { margin-bottom: 36px; }
.perks { display: flex; flex-direction: column; gap: 12px; }
.perk {
  font-size: 0.83rem; color: var(--mid);
  display: flex; align-items: center; gap: 14px;
}
.perk::before {
  content: '✓';
  width: 20px; height: 20px; flex-shrink: 0;
  border: 1px solid var(--border); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.55rem; color: var(--light);
}

.preorder-form-section {
  padding: 80px 56px 120px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 100px;
}
.form-container { padding: 0; }
.form-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem; font-weight: 700; margin-bottom: 6px;
}
.form-subtitle { font-size: 0.83rem; color: var(--light); margin-bottom: 40px; }
.form-group { margin-bottom: 22px; }
.form-group label {
  display: block; font-size: 0.65rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--light); margin-bottom: 8px;
}
.form-group input, .form-group select {
  width: 100%; padding: 11px 14px;
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 2px;
  font-family: 'Inter', sans-serif; font-size: 0.92rem;
  color: var(--text); transition: border-color .2s; appearance: none; -webkit-appearance: none;
}
.form-group input:focus, .form-group select:focus {
  outline: none; border-color: var(--text);
}
.form-group input::placeholder { color: var(--light); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.checkbox-group { display: flex; flex-direction: column; gap: 10px; margin-top: 8px; }
.checkbox-label {
  display: flex; align-items: center; gap: 12px;
  font-size: 0.84rem; color: var(--mid); cursor: pointer;
}
.checkbox-label input[type="checkbox"] {
  width: 14px; height: 14px; border: 1px solid var(--border);
  background: transparent; appearance: none; -webkit-appearance: none;
  cursor: pointer; flex-shrink: 0; transition: all .2s;
}
.checkbox-label input[type="checkbox"]:checked {
  background: var(--text); border-color: var(--text);
}
.form-submit {
  width: 100%; padding: 15px;
  background: var(--text); color: var(--bg);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.74rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; border: none; cursor: pointer;
  transition: opacity .2s; margin-top: 12px;
}
.form-submit:hover { opacity: 0.75; }
.form-privacy { font-size: 0.68rem; color: var(--light); margin-top: 16px; text-align: center; }
.form-info { padding-top: 4px; }
.form-info h3 { font-size: 1.35rem; margin-bottom: 10px; }
.form-info > p { margin-bottom: 48px; }
.info-blocks { display: flex; flex-direction: column; gap: 16px; }
.info-block {
  padding: 20px 20px 20px 24px;
  border-left: 3px solid var(--border);
  transition: border-color .2s;
}
.info-block:hover { border-left-color: var(--text); }
.info-block h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.92rem; font-weight: 600; margin-bottom: 5px;
}
.form-success { display: none; text-align: center; padding: 80px 20px; }
.form-success.visible { display: block; }
.success-icon {
  width: 48px; height: 48px; background: var(--text); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 24px; color: var(--bg); font-size: 1rem;
}
.form-success h3 { font-size: 1.8rem; margin-bottom: 10px; }

/* ── RESPONSIVE ── */
@media (max-width: 960px) {
  nav { padding: 16px 24px; }
  nav.scrolled { padding: 12px 24px; }
  .nav-links { display: none; }

  .hero, .device-section,
  .preorder-hero, .preorder-form-section {
    grid-template-columns: 1fr;
    padding: 110px 24px 60px; gap: 48px;
  }
  .how-it-works, .formulas, .model-section, .cta-section { padding: 80px 24px; }
  .steps { grid-template-columns: 1fr; }
  .formula-grid { grid-template-columns: repeat(2, 1fr); }
  .model-cards { grid-template-columns: 1fr; gap: 20px; }
  footer { flex-direction: column; gap: 20px; padding: 32px 24px; text-align: center; }
  .footer-links { flex-wrap: wrap; justify-content: center; }
  .formulas .section-header { flex-direction: column; align-items: flex-start; gap: 16px; }
}