:root {
  --forest: #173f43;
  --forest-deep: #0d292c;
  --terra: #d3654b;
  --terra-dark: #b9503d;
  --sun: #e9ad67;
  --sage: #e4e9e5;
  --paper: #f7f5f1;
  --white: #fff;
  --ink: #303635;
  --muted: #6f7976;
  --font-story: 'Cormorant Garamond', Georgia, serif;
  --font-ui: 'Manrope', Arial, sans-serif;
  --ease: cubic-bezier(.16, 1, .3, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; background: var(--paper); color: var(--ink); font-family: var(--font-ui); line-height: 1.75; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3, p, figure, blockquote { margin: 0; }
h1, h2, h3 { font-family: var(--font-story); font-weight: 400; }
:focus-visible { outline: 2px solid var(--sun); outline-offset: 5px; }

.article-hero { position: relative; min-height: 760px; overflow: hidden; background: var(--forest-deep); color: var(--white); }
.article-hero::before { position: absolute; inset: 0; z-index: 1; background: linear-gradient(90deg, rgba(7,25,27,.84) 0%, rgba(7,25,27,.62) 45%, rgba(7,25,27,.13) 78%), linear-gradient(0deg, rgba(7,25,27,.42), transparent 45%); content: ''; }
.article-hero::after { position: absolute; right: -8vw; bottom: -18vw; z-index: 1; width: 46vw; aspect-ratio: 1; border: 1px solid rgba(255,255,255,.14); border-radius: 50%; content: ''; }
.article-hero-media { position: absolute; inset: 0; }
.article-hero-media picture, .sequence-media picture { display: block; width: 100%; height: 100%; }
.article-hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: center 46%; filter: saturate(.84) contrast(1.02); }
.article-hero-inner { position: relative; z-index: 2; display: flex; min-height: 760px; max-width: 1400px; margin: 0 auto; padding: 155px 7vw 78px; align-items: flex-end; }
.article-hero-copy { max-width: 860px; }
.article-kicker, .section-kicker { display: inline-flex; align-items: center; gap: 13px; color: var(--sun); font-size: .64rem; font-weight: 700; letter-spacing: 3.4px; text-transform: uppercase; }
.article-kicker::before, .section-kicker::before { width: 36px; height: 1px; background: currentColor; content: ''; }
.article-hero h1 { max-width: 850px; margin-top: 24px; font-size: clamp(4rem, 8.2vw, 8rem); letter-spacing: -.055em; line-height: .87; }
.article-hero h1 em { color: var(--sun); font-style: italic; }
.article-hero-intro { max-width: 660px; margin-top: 28px; color: rgba(255,255,255,.82); font-family: var(--font-story); font-size: clamp(1.3rem, 2vw, 1.75rem); font-style: italic; line-height: 1.42; }
.article-meta { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 32px; color: rgba(255,255,255,.68); font-size: .62rem; font-weight: 700; letter-spacing: 1.7px; text-transform: uppercase; }
.article-meta > :not(:first-child) { position: relative; padding-left: 20px; }
.article-meta > :not(:first-child)::before { position: absolute; top: 50%; left: 0; width: 4px; height: 4px; border-radius: 50%; background: var(--terra); content: ''; transform: translateY(-50%); }
.hero-credit { position: absolute; right: 24px; bottom: 20px; z-index: 3; color: rgba(255,255,255,.72); font-size: .56rem; letter-spacing: 1.2px; text-decoration: none; text-transform: uppercase; }

.soundline { position: relative; z-index: 3; height: 46px; margin-top: -23px; overflow: hidden; color: var(--sun); }
.soundline svg { display: block; width: 100%; height: 46px; }

.article-shell { width: min(1160px, calc(100% - 12vw)); margin: 0 auto; }
.article-lead { display: grid; grid-template-columns: .82fr 1.18fr; gap: clamp(54px, 9vw, 130px); padding: 120px 0 130px; }
.lead-heading { position: sticky; top: 90px; align-self: start; }
.section-kicker { color: var(--terra); }
.lead-heading h2, .article-section h2 { margin-top: 22px; font-size: clamp(3.2rem, 6vw, 6rem); letter-spacing: -.045em; line-height: .94; }
.lead-heading h2 em, .article-section h2 em { color: var(--terra); font-style: italic; }
.prose { color: var(--muted); font-size: 1rem; line-height: 1.95; }
.prose p + p { margin-top: 22px; }
.prose strong { color: var(--ink); font-weight: 700; }
.prose a { text-decoration-color: var(--terra); text-underline-offset: 4px; }
.dropcap::first-letter { float: left; margin: .11em .14em 0 0; color: var(--terra); font-family: var(--font-story); font-size: 5.4rem; line-height: .68; }

.article-quote { padding: 105px 7vw; background: var(--sun); color: var(--forest-deep); text-align: center; }
.article-quote blockquote { max-width: 1020px; margin: 0 auto; font-family: var(--font-story); font-size: clamp(3.1rem, 6.2vw, 6.4rem); font-style: italic; letter-spacing: -.042em; line-height: .98; }
.article-quote cite { display: block; margin-top: 24px; font-family: var(--font-ui); font-size: .61rem; font-style: normal; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; }

.article-sequence { display: grid; grid-template-columns: 1fr 1fr; min-height: 720px; }
.article-sequence.is-reversed .sequence-media { order: 2; }
.article-sequence.is-reversed .sequence-content { order: 1; background: var(--sage); }
.sequence-media { position: relative; min-height: 640px; overflow: hidden; }
.sequence-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.sequence-media:hover img { transform: scale(1.018); }
.sequence-media .landscape { object-position: 45% center; }
.image-credit { position: absolute; right: 16px; bottom: 14px; padding: 6px 9px; background: rgba(13,41,44,.64); color: rgba(255,255,255,.86); font-size: .55rem; letter-spacing: 1px; text-decoration: none; text-transform: uppercase; backdrop-filter: blur(8px); }
.sequence-content { display: flex; flex-direction: column; justify-content: center; padding: 90px clamp(44px, 7vw, 112px); background: var(--white); }
.sequence-number { display: flex; align-items: center; gap: 13px; color: var(--terra); font-family: var(--font-story); font-size: 1.25rem; font-style: italic; }
.sequence-number::after { width: 46px; height: 1px; background: currentColor; content: ''; }
.sequence-content h2 { max-width: 590px; margin-top: 22px; font-size: clamp(3rem, 5.1vw, 5.3rem); letter-spacing: -.04em; line-height: .93; }
.sequence-content h2 em { color: var(--terra); font-style: italic; }
.sequence-content .prose { max-width: 610px; margin-top: 30px; }

.technical-section { padding: 125px 0; background: var(--forest-deep); color: var(--white); }
.technical-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: clamp(55px, 9vw, 125px); }
.technical-section .section-kicker { color: var(--sun); }
.technical-section h2 { margin-top: 22px; font-size: clamp(3.4rem, 6vw, 6rem); letter-spacing: -.045em; line-height: .93; }
.technical-section h2 em { color: var(--sun); font-style: italic; }
.technical-section .prose { color: rgba(255,255,255,.7); }
.technical-section .prose strong { color: var(--white); }
.source-list { display: grid; gap: 1px; margin-top: 34px; background: rgba(255,255,255,.14); }
.source-item { display: grid; grid-template-columns: 54px 1fr; gap: 20px; padding: 25px 0; background: var(--forest-deep); }
.source-item span { color: var(--sun); font-family: var(--font-story); font-size: 1.35rem; font-style: italic; }
.source-item h3 { color: var(--white); font-family: var(--font-ui); font-size: .74rem; font-weight: 700; letter-spacing: 1.4px; text-transform: uppercase; }
.source-item p { margin-top: 7px; color: rgba(255,255,255,.62); font-size: .88rem; line-height: 1.7; }

.article-section { display: grid; grid-template-columns: .82fr 1.18fr; gap: clamp(55px, 9vw, 130px); padding: 125px 0; }
.article-section + .article-section { border-top: 1px solid rgba(48,54,53,.16); }
.article-section-heading { align-self: start; }
.article-section .prose { padding-top: 54px; }
.formula-note { margin-top: 30px; padding: 25px 28px; border-left: 2px solid var(--terra); background: var(--sage); color: var(--ink); font-family: var(--font-story); font-size: 1.45rem; font-style: italic; line-height: 1.35; }

.formula-section { padding: 120px 0; background: var(--sage); }
.formula-header { display: grid; grid-template-columns: .95fr 1.05fr; gap: 70px; align-items: end; margin-bottom: 52px; }
.formula-header h2 { margin-top: 22px; font-size: clamp(3.4rem, 6vw, 6rem); letter-spacing: -.045em; line-height: .92; }
.formula-header h2 em { color: var(--terra); font-style: italic; }
.formula-header > p { color: var(--muted); line-height: 1.85; }
.formula-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.formula-card { min-height: 390px; padding: 36px 30px; border: 1px solid rgba(48,54,53,.14); background: rgba(255,255,255,.52); }
.formula-card.is-featured { background: var(--forest); color: var(--white); }
.formula-card-label { color: var(--terra); font-size: .59rem; font-weight: 700; letter-spacing: 2.3px; text-transform: uppercase; }
.formula-card.is-featured .formula-card-label { color: var(--sun); }
.formula-card h3 { margin-top: 18px; font-size: 2.45rem; line-height: 1; }
.formula-card p { margin-top: 24px; color: var(--muted); font-size: .91rem; line-height: 1.85; }
.formula-card.is-featured p { color: rgba(255,255,255,.72); }
.formula-card strong { color: var(--ink); }
.formula-card.is-featured strong { color: var(--white); }

.faq-section { padding: 125px 0; background: var(--white); }
.faq-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: clamp(55px, 9vw, 125px); }
.faq-heading { position: sticky; top: 90px; align-self: start; }
.faq-heading h2 { margin-top: 22px; font-size: clamp(3.5rem, 6vw, 6rem); letter-spacing: -.05em; line-height: .92; }
.faq-heading h2 em { color: var(--terra); font-style: italic; }
.faq-list { border-top: 1px solid rgba(48,54,53,.2); }
.faq-item { border-bottom: 1px solid rgba(48,54,53,.17); }
.faq-item summary { position: relative; padding: 27px 55px 27px 0; cursor: pointer; list-style: none; color: var(--ink); font-family: var(--font-story); font-size: clamp(1.45rem, 2.3vw, 2rem); line-height: 1.2; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { position: absolute; top: 28px; right: 4px; color: var(--terra); content: '+'; font-family: var(--font-ui); font-size: 1.5rem; font-weight: 300; }
.faq-item[open] summary::after { content: '−'; }
.faq-item p { max-width: 690px; padding: 0 50px 28px 0; color: var(--muted); line-height: 1.85; }

.article-cta { padding: 115px 7vw; background: var(--terra); color: var(--white); text-align: center; }
.article-cta p:first-child { font-size: .61rem; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; }
.article-cta h2 { max-width: 880px; margin: 20px auto 0; font-size: clamp(3.5rem, 7vw, 7rem); letter-spacing: -.05em; line-height: .9; }
.article-cta h2 em { color: var(--forest-deep); font-style: italic; }
.article-cta > p:not(:first-child) { max-width: 590px; margin: 25px auto 0; color: rgba(255,255,255,.82); }
.article-cta a { display: inline-flex; margin-top: 34px; padding: 15px 25px; border: 1px solid rgba(255,255,255,.75); border-radius: 999px; color: var(--white); font-size: .64rem; font-weight: 700; letter-spacing: 2px; text-decoration: none; text-transform: uppercase; transition: background .25s, color .25s; }
.article-cta a:hover { background: var(--white); color: var(--terra-dark); }

@media (max-width: 980px) {
  .article-hero, .article-hero-inner { min-height: 700px; }
  .article-hero::before { background: linear-gradient(0deg, rgba(7,25,27,.9) 0%, rgba(7,25,27,.48) 62%, rgba(7,25,27,.18)); }
  .article-hero-inner { padding: 145px 7vw 68px; }
  .article-lead, .technical-grid, .article-section, .formula-header, .faq-grid { grid-template-columns: 1fr; }
  .lead-heading, .faq-heading { position: static; }
  .article-sequence, .article-sequence.is-reversed { grid-template-columns: 1fr; }
  .article-sequence.is-reversed .sequence-media, .article-sequence.is-reversed .sequence-content { order: initial; }
  .sequence-media { min-height: 70vw; }
  .technical-grid, .article-section { gap: 45px; }
  .article-section .prose { padding-top: 0; }
  .formula-grid { grid-template-columns: 1fr; }
  .formula-card { min-height: auto; }
}

@media (max-width: 640px) {
  .article-hero, .article-hero-inner { min-height: 680px; }
  .article-hero-media img { object-position: 56% center; }
  .article-hero-inner { padding: 132px 6vw 58px; }
  .article-hero h1 { font-size: clamp(3.55rem, 17vw, 5.2rem); }
  .article-meta { gap: 7px 13px; }
  .article-meta > :not(:first-child) { padding-left: 13px; }
  .hero-credit { right: 10px; bottom: 8px; }
  .article-shell { width: calc(100% - 12vw); }
  .article-lead, .technical-section, .article-section, .formula-section, .faq-section { padding-top: 82px; padding-bottom: 88px; }
  .article-quote { padding: 78px 7vw; }
  .article-quote blockquote { font-size: clamp(2.65rem, 13vw, 4.2rem); }
  .sequence-media { min-height: 85vw; }
  .sequence-content { padding: 70px 8vw 78px; }
  .source-item { grid-template-columns: 40px 1fr; }
  .formula-header { gap: 28px; }
  .faq-grid { gap: 45px; }
  .article-cta { padding: 85px 7vw; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}