.extreme-product {
  --accent: #e2a63e;
  --accent-bright: #ffd477;
  --hero: #100f0e;
  --hero-soft: #241b14;
  --hero-text: #fff8eb;
  --hero-muted: #c9bca8;
  --paper: #f4efe4;
  --ink: #17130f;
  --muted: #6e6458;
  --line: #d8ccba;
  background: var(--paper);
  color: var(--ink);
}

.extreme-product[data-edition="large"] {
  --accent: #55cce9;
  --accent-bright: #b9effc;
  --hero: #071d31;
  --hero-soft: #0b3853;
  --hero-text: #f5fcff;
  --hero-muted: #b9d6e0;
  --paper: #edf6f7;
  --ink: #102e3c;
  --muted: #58707a;
  --line: #c4dadd;
}

.extreme-hero {
  background:
    radial-gradient(circle at 82% 34%, color-mix(in srgb, var(--accent) 25%, transparent), transparent 25%),
    linear-gradient(120deg, var(--hero) 0%, var(--hero-soft) 100%);
  color: var(--hero-text);
  isolation: isolate;
  min-height: 720px;
  overflow: hidden;
  padding: clamp(4.5rem, 8vw, 8rem) clamp(1.25rem, 8vw, 8rem);
  position: relative;
}

.extreme-hero::before,
.extreme-hero::after {
  content: "";
  pointer-events: none;
  position: absolute;
}

.extreme-hero::before {
  background-image:
    linear-gradient(color-mix(in srgb, var(--accent) 13%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--accent) 13%, transparent) 1px, transparent 1px);
  background-size: 42px 42px;
  height: 460px;
  opacity: .45;
  right: -90px;
  top: 100px;
  transform: perspective(600px) rotateY(-20deg) rotateZ(8deg);
  width: 520px;
  z-index: -1;
}

.extreme-hero::after {
  border: 1px solid color-mix(in srgb, var(--accent) 42%, transparent);
  border-radius: 50%;
  height: 560px;
  right: -180px;
  top: 50%;
  transform: translateY(-50%);
  width: 560px;
  z-index: -1;
}

.extreme-hero-inner {
  align-items: center;
  display: grid;
  gap: clamp(3rem, 8vw, 9rem);
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, .7fr);
  margin: auto;
  max-width: 1380px;
}

.extreme-hero-copy {
  max-width: 760px;
}

.extreme-product .eyebrow {
  color: var(--accent-bright);
  font-family: "DM Mono", monospace;
  letter-spacing: .19em;
}

.extreme-hero h1 {
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(4rem, 7.4vw, 7.7rem);
  font-weight: 500;
  letter-spacing: -.07em;
  line-height: .86;
  margin: .5rem 0 1.8rem;
}

.extreme-hero h1 em {
  color: var(--accent-bright);
  display: block;
  font-style: normal;
}

.extreme-lead {
  color: var(--hero-muted);
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(1.2rem, 2vw, 1.72rem);
  line-height: 1.45;
  margin: 0;
  max-width: 650px;
}

.extreme-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.25rem;
}

.extreme-amazon {
  align-items: center;
  background: linear-gradient(135deg, #ffe993, #df921a);
  color: #071635;
  display: inline-flex;
  font-size: .8rem;
  font-weight: 900;
  gap: .7rem;
  justify-content: center;
  letter-spacing: .1em;
  min-height: 56px;
  padding: 0 1.7rem;
  text-decoration: none;
  text-transform: uppercase;
  transition: filter .2s, transform .2s;
}

.extreme-amazon:hover {
  filter: brightness(1.08);
  transform: translateY(-2px);
}

.extreme-secondary {
  border-bottom: 1px solid color-mix(in srgb, var(--hero-text) 45%, transparent);
  color: var(--hero-text);
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .08em;
  padding: .65rem 0 .35rem;
  text-decoration: none;
  text-transform: uppercase;
}

.extreme-quickfacts {
  border-top: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 3.2rem;
  padding-top: 1.5rem;
}

.extreme-quickfacts strong {
  color: var(--accent-bright);
  display: block;
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(1.65rem, 2.5vw, 2.35rem);
  font-weight: 500;
}

.extreme-quickfacts span {
  color: var(--hero-muted);
  display: block;
  font-size: .82rem;
  line-height: 1.35;
}

.extreme-book {
  filter: drop-shadow(0 35px 30px rgba(0, 0, 0, .55));
  justify-self: center;
  max-height: 650px;
  max-width: 100%;
  object-fit: contain;
  transform: perspective(1300px) rotateY(-5deg);
}

.extreme-intro,
.extreme-benefits,
.extreme-faq {
  padding: clamp(4.5rem, 8vw, 8rem) clamp(1.25rem, 8vw, 8rem);
}

.extreme-intro-inner,
.extreme-benefits-inner,
.extreme-faq-inner {
  margin: auto;
  max-width: 1300px;
}

.extreme-intro-heading {
  align-items: end;
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  margin-bottom: clamp(3rem, 6vw, 5.5rem);
}

.extreme-intro h2,
.extreme-benefits h2,
.extreme-faq h2,
.extreme-final h2 {
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(2.8rem, 5.3vw, 5.4rem);
  font-weight: 500;
  letter-spacing: -.06em;
  line-height: .96;
  margin: .5rem 0 0;
}

.extreme-intro-heading > p:last-child {
  color: var(--muted);
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(1.05rem, 1.7vw, 1.3rem);
  line-height: 1.65;
  margin: 0;
}

.extreme-specs {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.extreme-spec {
  background: color-mix(in srgb, white 62%, var(--paper));
  border-top: 3px solid var(--accent);
  min-height: 190px;
  padding: 1.6rem;
}

.extreme-spec span {
  color: var(--accent);
  font-family: "DM Mono", monospace;
  font-size: .68rem;
  letter-spacing: .13em;
}

.extreme-spec strong {
  display: block;
  font-family: "Playfair Display", Georgia, serif;
  font-size: 1.55rem;
  font-weight: 500;
  line-height: 1.1;
  margin: 1.7rem 0 .5rem;
}

.extreme-spec p {
  color: var(--muted);
  font-size: .88rem;
  margin: 0;
}

.extreme-benefits {
  background: var(--hero);
  color: var(--hero-text);
  overflow: hidden;
  position: relative;
}

.extreme-benefits::after {
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  border-radius: 50%;
  content: "";
  height: 620px;
  position: absolute;
  right: -280px;
  top: -310px;
  width: 620px;
}

.extreme-benefits-head {
  max-width: 780px;
  position: relative;
  z-index: 1;
}

.extreme-benefit-grid {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 3.5rem;
  position: relative;
  z-index: 1;
}

.extreme-benefit-grid article {
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  min-height: 280px;
  padding: clamp(1.6rem, 3vw, 2.6rem);
}

.extreme-benefit-grid article > span {
  color: var(--accent-bright);
  font-family: "DM Mono", monospace;
  font-size: .72rem;
  letter-spacing: .13em;
}

.extreme-benefit-grid h3 {
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(1.7rem, 2.5vw, 2.35rem);
  font-weight: 500;
  line-height: 1.08;
  margin: 3rem 0 .9rem;
}

.extreme-benefit-grid p {
  color: var(--hero-muted);
  line-height: 1.65;
  margin: 0;
}

.extreme-faq-inner {
  display: grid;
  gap: clamp(3rem, 8vw, 8rem);
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
}

.extreme-faq-list {
  border-top: 1px solid var(--line);
}

.extreme-faq details {
  border-bottom: 1px solid var(--line);
  padding: 1.3rem 0;
}

.extreme-faq summary {
  cursor: pointer;
  font-family: "Playfair Display", Georgia, serif;
  font-size: 1.15rem;
  font-weight: 600;
  list-style: none;
  padding-right: 2rem;
  position: relative;
}

.extreme-faq summary::-webkit-details-marker { display: none; }
.extreme-faq summary::after {
  color: var(--accent);
  content: "+";
  font-family: Arial, sans-serif;
  font-size: 1.5rem;
  font-weight: 400;
  position: absolute;
  right: .2rem;
  top: -.25rem;
}
.extreme-faq details[open] summary::after { content: "−"; }

.extreme-faq details p {
  color: var(--muted);
  line-height: 1.65;
  margin: 1rem 2rem 0 0;
}

.extreme-final {
  align-items: center;
  background: linear-gradient(120deg, var(--hero), var(--hero-soft));
  color: var(--hero-text);
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 1fr) auto;
  padding: clamp(3.5rem, 6vw, 6rem) clamp(1.25rem, 8vw, 8rem);
}

.extreme-final-copy { max-width: 800px; }
.extreme-final h2 { font-size: clamp(2.6rem, 4.8vw, 4.8rem); }
.extreme-final p { color: var(--hero-muted); margin: 1rem 0 0; }

.extreme-product + .studio-footer {
  background: #060f18;
  border-top: 1px solid color-mix(in srgb, var(--accent, #d8aa51) 25%, transparent);
}

@media (max-width: 900px) {
  .extreme-hero { min-height: 0; padding-top: 3.5rem; }
  .extreme-hero-inner { grid-template-columns: 1fr; text-align: center; }
  .extreme-hero-copy { margin: auto; order: 2; }
  .extreme-book { max-height: 520px; order: 1; transform: none; }
  .extreme-actions { justify-content: center; }
  .extreme-intro-heading,
  .extreme-faq-inner { grid-template-columns: 1fr; }
  .extreme-specs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .extreme-benefit-grid { grid-template-columns: 1fr; }
  .extreme-benefit-grid article { min-height: 0; }
  .extreme-benefit-grid h3 { margin-top: 1.8rem; }
}

@media (max-width: 600px) {
  .extreme-hero h1 { font-size: clamp(3.3rem, 17vw, 5rem); }
  .extreme-book { max-height: 430px; }
  .extreme-actions { align-items: stretch; flex-direction: column; }
  .extreme-amazon { width: 100%; }
  .extreme-secondary { align-self: center; }
  .extreme-quickfacts { gap: .7rem; }
  .extreme-quickfacts strong { font-size: 1.45rem; }
  .extreme-quickfacts span { font-size: .72rem; }
  .extreme-specs { grid-template-columns: 1fr; }
  .extreme-spec { min-height: 0; }
  .extreme-final { grid-template-columns: 1fr; }
}