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

:root {
  --black: #0a0a0c;
  --near-black: #1d1d1f;
  --white: #ffffff;
  --off-white: #f5f5f7;
  --muted: #86868b;
  --muted-dark: #a1a1a6;
  --accent: #e8442f;
  --border: #d2d2d7;
  --border-dark: #2c2c2e;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, "SF Pro Display", system-ui, "Segoe UI", sans-serif;
  background: var(--black);
  color: var(--white);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* Nav */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 12, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.nav__inner {
  max-width: 76rem;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 3.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  color: var(--white);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__links a {
  color: var(--muted-dark);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s ease;
}

.nav__links a:hover {
  color: var(--white);
}

.nav__cta {
  color: var(--white) !important;
}

/* Hero */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,10,12,0.1) 0%, rgba(10,10,12,0.15) 45%, rgba(10,10,12,0.55) 82%, var(--black) 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 44rem;
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-shadow: 0 2px 20px rgba(0,0,0,0.55), 0 1px 4px rgba(0,0,0,0.8);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 600;
}

.hero h1 {
  font-size: clamp(2.75rem, 6vw, 4.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--white);
}

.hero__sub {
  color: var(--muted-dark);
  font-size: 1.25rem;
  font-weight: 400;
  max-width: 30rem;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-top: 0.5rem;
}

.link-arrow {
  color: var(--white);
  text-decoration: none;
  font-size: 1.05rem;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.link-arrow:hover {
  border-color: rgba(255,255,255,0.6);
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  padding: 0.85rem 1.75rem;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-size: 1.05rem;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  background: #ff5a3d;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(232, 68, 47, 0.35);
}

.btn--dark {
  background: var(--near-black);
}

.btn--dark:hover {
  background: #000;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}

/* Scroll reveal */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Showcase */

.showcase {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 4rem;
  max-width: 76rem;
  margin: 0 auto;
  padding: 8rem 1.5rem;
  border-bottom: 1px solid var(--border-dark);
}

.showcase__img {
  width: 100%;
  border-radius: 1.25rem;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.showcase__text .eyebrow {
  color: var(--accent);
}

.showcase__text h2 {
  font-size: clamp(1.9rem, 3vw, 2.5rem);
  margin: 0.6rem 0 1.1rem;
  color: var(--white);
}

.showcase__text p {
  color: var(--muted-dark);
  font-size: 1.1rem;
}

/* Section shared */

.section {
  padding: 7rem 1.5rem;
}

.section-head {
  max-width: 40rem;
  margin: 0 auto 3.5rem;
  text-align: center;
}

.section-head h2 {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  margin-top: 0.6rem;
}

/* Specs (dark section) */

.specs-dark {
  background: var(--black);
  color: var(--white);
}

.specs-dark .eyebrow {
  color: var(--accent);
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1px;
  max-width: 72rem;
  margin: 0 auto;
  background: var(--border-dark);
  border: 1px solid var(--border-dark);
  border-radius: 1.25rem;
  overflow: hidden;
}

.spec {
  background: var(--black);
  padding: 2.5rem 2rem;
}

.spec h3 {
  font-size: 1rem;
  color: var(--muted-dark);
  font-weight: 500;
  margin-bottom: 0.6rem;
}

.spec p {
  color: var(--white);
  font-size: 1.15rem;
  font-weight: 500;
}

/* Sizes */

.sizes {
  background: var(--near-black);
}

.sizes .eyebrow {
  color: var(--accent);
}

.size-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: 2rem;
  max-width: 60rem;
  margin: 0 auto;
  text-align: center;
}

.size {
  display: flex;
  flex-direction: column-reverse;
  gap: 0.5rem;
}

.size__label {
  color: var(--muted-dark);
  font-size: 0.95rem;
}

.size__value {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--white);
}

.size__value small {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--muted-dark);
  margin-left: 0.15rem;
}

/* Pricing */

.pricing {
  text-align: center;
  background: var(--black);
  border-bottom: 1px solid var(--border-dark);
}

.price-card {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  background: var(--near-black);
  border: 1px solid var(--border-dark);
  border-radius: 1.5rem;
  padding: 3.5rem 5rem;
}

.price-card__edition {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.85rem;
  color: var(--muted-dark);
  font-weight: 600;
}

.price-card__price {
  font-size: 3.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--white);
}

.price-card__note {
  color: var(--muted-dark);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

/* Interest */

.interest {
  text-align: center;
  background: var(--black);
  color: var(--white);
}

.interest h2 {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
}

.interest p {
  color: var(--muted-dark);
  margin: 1rem 0 2.5rem;
  font-size: 1.1rem;
}

.interest-form {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.interest-form input {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border-dark);
  color: var(--white);
  padding: 0.9rem 1.25rem;
  border-radius: 999px;
  font-size: 1rem;
  min-width: 16rem;
}

.interest-form input::placeholder {
  color: var(--muted-dark);
}

.interest-form input:focus {
  outline: 2px solid var(--accent);
}

/* Footer */

.footer {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--black);
  border-top: 1px solid var(--border-dark);
  color: var(--muted);
  font-size: 0.8rem;
}

@media (max-width: 48rem) {
  .nav__links {
    gap: 1.25rem;
  }

  .showcase {
    grid-template-columns: 1fr;
    padding: 5rem 1.5rem;
  }

  .price-card {
    padding: 3rem 2.5rem;
    width: 100%;
  }
}