/* Poetic Coastal Studio: a tactile editorial system for the public site. */
:root {
  --paper: #f2efe7;
  --paper-light: #fbf8f0;
  --ink: #1c282c;
  --muted: #5e6768;
  --coastal-blue: #476477;
  --coastal-deep: #2f4857;
  --brand: #3a805c;
  --coral: #c77455;
  --line: #c9c5ba;
  --control-line: #74766f;
  --wide: 88rem;
  --reading: 48rem;
  --gutter: clamp(1.25rem, 2.7vw, 2.5rem);
  --section-space: clamp(5rem, 9vw, 8rem);
  --display-font: "Songti SC", "STSong", "SimSun", serif;
  --body-font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { color-scheme: light; scroll-behavior: smooth; }
.theme-poetic-coastal { background: var(--paper); }
body.theme-poetic-coastal { margin: 0; min-width: 0; background: var(--paper); color: var(--ink); font-family: var(--body-font); font-size: 1rem; line-height: 1.72; overflow-wrap: anywhere; text-rendering: optimizeLegibility; }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--coastal-deep); text-decoration-thickness: .07em; text-underline-offset: .18em; }
a:hover { color: var(--ink); }
button, input, textarea, select { font: inherit; }
button, summary, a { min-height: 44px; }
button, summary { cursor: pointer; }
:focus-visible { outline: 3px solid var(--coastal-blue); outline-offset: 4px; }

.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 30; top: .75rem; left: .75rem; display: inline-flex; align-items: center; padding: .7rem 1rem; background: var(--ink); color: var(--paper-light); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.site-container { width: min(100% - (var(--gutter) * 2), var(--wide)); margin-inline: auto; }
.site-container--reading { width: min(100% - (var(--gutter) * 2), var(--reading)); }
.site-read { width: min(100%, var(--reading)); }
.muted { color: var(--muted); }

.site-header { position: relative; z-index: 10; border-bottom: 1px solid var(--line); background: var(--paper); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 6.25rem; }
.brand-lockup { display: inline-flex; align-items: center; gap: .8rem; color: var(--ink); font-weight: 650; letter-spacing: -.025em; text-decoration: none; }
.brand-lockup img { width: 2.35rem; border-radius: 21%; }
.nav-menu { position: relative; }
.nav-menu summary { display: inline-flex; align-items: center; justify-content: center; padding: .55rem .8rem; list-style: none; border: 1px solid var(--control-line); color: var(--ink); font-size: .875rem; font-weight: 650; letter-spacing: .06em; }
.nav-menu summary::-webkit-details-marker { display: none; }
.nav-menu[open] .site-nav { display: grid; }
.nav-toggle { display: inline-flex; }
.site-nav { display: none; position: absolute; z-index: 20; right: 0; top: calc(100% + .65rem); width: min(18rem, calc(100vw - (var(--gutter) * 2))); padding: .55rem; border: 1px solid var(--control-line); background: var(--paper-light); box-shadow: 0 1rem 2.5rem rgb(28 40 44 / 14%); }
.desktop-nav { display: none; }
.site-nav a, .desktop-nav a { display: flex; align-items: center; padding: .55rem .75rem; color: var(--ink); font-size: .9rem; font-weight: 600; letter-spacing: .02em; text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"], .desktop-nav a:hover, .desktop-nav a[aria-current="page"] { color: var(--coastal-blue); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .35rem; }

.button-primary, .button-secondary { display: inline-flex; align-items: center; justify-content: center; min-height: 3.5rem; padding: .8rem 1.45rem; border: 1px solid var(--control-line); border-radius: 1px; font-weight: 650; line-height: 1.2; text-decoration: none; }
.button-primary { border-color: var(--ink); background: var(--ink); color: var(--paper-light); }
.button-primary:hover { border-color: var(--coastal-deep); background: var(--coastal-deep); color: var(--paper-light); }
.button-secondary { background: transparent; color: var(--ink); }
.button-secondary:hover { border-color: var(--coastal-blue); color: var(--coastal-deep); }

.eyebrow { margin: 0 0 1rem; color: var(--coastal-blue); font-size: .75rem; font-weight: 700; letter-spacing: .15em; line-height: 1.45; text-transform: uppercase; }
.section { padding-block: var(--section-space); border-top: 1px solid var(--line); }
.section-heading { max-width: 18em; margin: 0; font-family: var(--display-font); font-size: clamp(2.15rem, 5vw, 4.2rem); font-weight: 400; line-height: 1.18; letter-spacing: -.04em; }
.section-statement { max-width: 27rem; margin: 1.2rem 0 0; color: var(--muted); font-size: 1.05rem; }
.intro { max-width: var(--reading); margin: 1.5rem 0 0; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.2rem); }

.hero { display: grid; gap: 3.5rem; align-items: center; padding-block: clamp(4rem, 10vw, 7.5rem) clamp(5.5rem, 11vw, 8rem); }
.hero-copy { position: relative; min-width: 0; }
.hero-copy h1, .product-hero h1, .page-intro h1 { margin: 0; font-family: var(--display-font); font-size: clamp(3.25rem, 14vw, 5rem); font-weight: 400; line-height: 1.08; letter-spacing: -.055em; }
.hero-copy h1 > span { display: block; }
.hero-copy p { max-width: 35rem; }
.hero-ability { margin: 2rem 0 0; color: var(--ink); font-size: .9rem; font-weight: 650; letter-spacing: .035em; }
.hero-value { margin: 1.3rem 0 0; color: var(--ink); font-family: var(--display-font); font-size: clamp(1.45rem, 4.5vw, 2rem); line-height: 1.45; letter-spacing: -.025em; }
.hero-description { margin: 2rem 0 0; padding-left: 1rem; border-left: 2px solid var(--coastal-blue); color: var(--coastal-blue); font-size: .98rem; line-height: 1.85; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
.hero-visual { position: relative; min-width: 0; isolation: isolate; }
.hero-material { width: 100%; border: 1px solid rgb(71 100 119 / 18%); }
.hero-proof { position: absolute; z-index: 2; top: 18%; right: 7%; width: 42%; margin: 0; padding: clamp(.25rem, .7vw, .55rem); background: var(--paper-light); box-shadow: 0 1.25rem 3.5rem rgb(28 40 44 / 18%); transform: rotate(-.55deg); }
.hero-proof img { width: 100%; }
.hero-margin-note { position: absolute; z-index: 3; right: .8rem; bottom: 1rem; display: none; margin: 0; color: var(--coastal-blue); font-family: var(--display-font); font-size: .85rem; letter-spacing: .16em; writing-mode: vertical-rl; }

.section-bridge { display: grid; gap: 2rem; align-items: start; }
.studio-process-image { margin: 0; border: 1px solid rgb(71 100 119 / 18%); }
.studio-process-image img { width: 100%; }
.services-product-grid { display: grid; gap: clamp(3rem, 7vw, 6rem); margin-top: clamp(3rem, 7vw, 6rem); }
.service-list { margin: 0; padding: 0 0 0 2.35rem; list-style: decimal-leading-zero; border-top: 1px solid var(--line); }
.service-item { padding: 1.45rem .15rem 1.5rem .5rem; border-bottom: 1px solid var(--line); }
.service-item::marker { color: var(--coastal-blue); font-size: .8rem; font-weight: 700; letter-spacing: .08em; }
.service-item h3, .product-case h3, .identity-item h3 { margin: 0; font-size: 1.08rem; letter-spacing: -.02em; }
.service-item p, .product-case p, .identity-item p { margin: .65rem 0 0; color: var(--muted); }
.product-case { position: relative; padding: clamp(1.5rem, 4vw, 2.75rem); border-top: 1px solid var(--coastal-deep); border-bottom: 1px solid var(--coastal-deep); background: var(--coastal-deep); color: var(--paper-light); }
.product-case .app-icon { width: clamp(3.5rem, 10vw, 5rem); margin: 0 0 2rem; border-radius: 21%; box-shadow: 0 .75rem 2rem rgb(10 20 24 / 20%); }
.product-case .eyebrow, .product-case p { color: var(--paper); }
.product-case h2 { max-width: 14ch; margin: 0; font-family: var(--display-font); font-size: clamp(1.85rem, 4vw, 3rem); font-weight: 400; line-height: 1.25; }
.product-case .button-secondary { margin-top: 1.75rem; border-color: var(--paper); color: var(--paper-light); }
.product-case .button-secondary:hover { background: var(--paper-light); color: var(--coastal-deep); }

.section--compact-roadmap { padding-block: clamp(3rem, 6vw, 4.5rem); }
.roadmap-card { max-width: 62rem; padding: 0 0 0 1.2rem; border-left: 3px solid var(--coral); }
.roadmap-card .eyebrow { color: var(--ink); }
.roadmap-card h2 { margin: 0; font-family: var(--display-font); font-size: clamp(1.65rem, 3vw, 2.4rem); font-weight: 400; letter-spacing: -.025em; }
.roadmap-card p:not(.eyebrow) { max-width: 46rem; margin: .8rem 0; color: var(--muted); }
.roadmap-card a { display: inline-flex; align-items: center; font-weight: 650; }
.status-badge { display: inline-flex; align-items: center; min-height: 2rem; padding: .25rem .65rem; border: 1px solid var(--coral); background: var(--paper-light); color: var(--ink); font-size: .8rem; font-weight: 700; letter-spacing: .06em; }

.process-layout { display: grid; }
.process-copy { min-width: 0; }
.steps { margin: 2.5rem 0 0; padding: 0; list-style: none; counter-reset: step; border-top: 1px solid var(--line); }
.step { position: relative; display: grid; gap: .7rem; padding: 1.35rem 0 1.35rem 3.5rem; border-bottom: 1px solid var(--line); counter-increment: step; }
.step::before { content: "0" counter(step); position: absolute; top: 1.45rem; left: 0; color: var(--coastal-blue); font-size: .78rem; font-weight: 750; letter-spacing: .08em; }
.step h3 { margin: 0; font-size: 1.08rem; }
.step p { margin: 0; color: var(--muted); }

.about-layout { display: grid; gap: clamp(3rem, 7vw, 7rem); }
.identity-list { display: grid; gap: 0; margin: 0; border-top: 1px solid var(--line); }
.identity-list div { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.identity-list dt { color: var(--coastal-blue); font-size: .75rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.identity-list dd { margin: .3rem 0 0; color: var(--muted); }
.identity-list a { display: inline-flex; align-items: center; }

.contact-grid { display: grid; gap: 0; margin-top: 2.5rem; border-top: 1px solid var(--line); }
.contact-card { display: grid; gap: .75rem; padding: 1.5rem 0; border-bottom: 1px solid var(--line); }
.contact-card h2, .contact-card h3 { margin: 0; font-family: var(--display-font); font-size: clamp(1.35rem, 3vw, 2rem); font-weight: 400; }
.contact-card p { max-width: 40rem; margin: 0; color: var(--muted); }
.contact-card a { display: inline-flex; align-items: center; width: fit-content; font-weight: 650; }
.privacy-note { margin: 1.25rem 0 0; color: var(--muted); font-size: .875rem; }

.app-icon { width: clamp(3.75rem, 10vw, 5.25rem); border-radius: 21%; box-shadow: 0 .7rem 1.8rem rgb(28 40 44 / 13%); }
.product-hero { padding-block: clamp(4rem, 9vw, 7rem) clamp(3rem, 7vw, 5rem); }
.product-hero .app-icon { margin-bottom: 2rem; }
.product-hero h1 { max-width: 12ch; }
.product-hero p:not(.eyebrow) { max-width: var(--reading); margin: 1.45rem 0 0; color: var(--muted); font-size: clamp(1.08rem, 2vw, 1.25rem); }
.product-gallery { display: grid; gap: 2.5rem; margin-top: 3rem; }
.screenshot-card { width: min(100%, 22rem); margin: 0 auto; padding: .7rem; border: 1px solid var(--line); background: var(--paper-light); }
.screenshot-card img { width: 100%; aspect-ratio: 1206 / 2622; object-fit: contain; }
.screenshot-card figcaption { margin-top: .8rem; color: var(--coastal-blue); font-size: .78rem; font-weight: 700; letter-spacing: .09em; text-align: center; }
.current, .planned, .data-boundary { padding: clamp(1.5rem, 4vw, 2.75rem) 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.current, .data-boundary { margin-bottom: 2rem; }
.current h2, .planned h2, .data-boundary h2 { margin-top: 0; font-family: var(--display-font); font-size: clamp(1.65rem, 4vw, 2.5rem); font-weight: 400; }
.planned { padding-left: clamp(1rem, 3vw, 2rem); border-left: 3px solid var(--coral); }
.feature-list { display: grid; gap: 0; margin: 2rem 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.feature-list li { display: grid; gap: .35rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.feature-list strong { font-size: 1rem; }
.feature-list span { color: var(--muted); font-size: .95rem; }
.product-links { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }

.page-intro { padding-block: clamp(4rem, 8vw, 6rem) 2rem; }
.page-intro p { max-width: var(--reading); margin: 1.35rem 0 0; color: var(--muted); font-size: clamp(1.08rem, 2vw, 1.25rem); }
.prose-card { max-width: var(--reading); margin-bottom: var(--section-space); padding-block: 2rem; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.page-main { padding-block: clamp(4rem, 9vw, 7rem); }
.page-main article, .page-main > section { max-width: var(--reading); }
.page-main h1 { max-width: 15ch; margin: 0 0 1.75rem; font-family: var(--display-font); font-size: clamp(2.75rem, 8vw, 5rem); font-weight: 400; line-height: 1.12; letter-spacing: -.045em; }
.page-main h2, .page-main h3 { line-height: 1.35; letter-spacing: -.025em; }
.page-main h2 { margin: 3rem 0 .85rem; font-family: var(--display-font); font-size: clamp(1.5rem, 4vw, 2.15rem); font-weight: 400; }
.page-main h3 { margin: 2rem 0 .65rem; font-size: 1.15rem; }
.page-main section > h2:first-child { margin-top: 0; }
.page-main section + section { margin-top: 3rem; padding-top: 2.5rem; border-top: 1px solid var(--line); }
.page-main p, .page-main li { color: var(--muted); }
.page-main p { margin: 0 0 1rem; }
.page-main ul, .page-main ol { margin: 1rem 0 0; padding-left: 1.35rem; }
.page-main li { padding-left: .25rem; }
.page-main li + li { margin-top: .8rem; }
.page-main li::marker { color: var(--coastal-blue); }
.page-main strong { color: var(--ink); }
.page-main a { color: var(--coastal-deep); font-weight: 650; }

.site-footer { padding-block: clamp(2.5rem, 5vw, 4rem); border-top: 1px solid var(--coastal-deep); background: var(--coastal-deep); color: var(--paper); font-size: .875rem; }
.footer-inner { display: grid; gap: 1.1rem; }
.footer-links, .filings { display: flex; flex-wrap: wrap; gap: .35rem 1.15rem; }
.footer-links a, .filing-link { display: inline-flex; align-items: center; color: var(--paper); }
.footer-links a:hover, .filing-link:hover { color: var(--paper-light); }
.filing-link img { width: 18px; margin-right: .3rem; }
.product-case :focus-visible, .site-footer :focus-visible { outline-color: var(--paper-light); }

@media (min-width: 480px) {
  .hero-actions .button-primary, .hero-actions .button-secondary { min-width: 13.5rem; }
  .service-item { display: grid; grid-template-columns: minmax(10rem, .9fr) 1.35fr; gap: 1.5rem; }
  .service-item p { margin: 0; }
  .contact-card { grid-template-columns: minmax(10rem, .7fr) 1.3fr; column-gap: 2rem; align-items: start; }
  .contact-card a { grid-column: 2; }
}

@media (min-width: 760px) {
  .nav-menu { display: none; }
  .desktop-nav { display: flex; align-items: center; gap: .35rem; }
  .desktop-nav a { padding-inline: .8rem; }
  .hero-visual .hero-margin-note { display: block; }
  .product-gallery { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem; align-items: start; }
  .footer-inner { grid-template-columns: minmax(16rem, 1.15fr) auto; align-items: start; }
  .footer-inner > :nth-child(2) { text-align: right; }
  .filings, .footer-links { grid-column: 1 / -1; }
}

@media (min-width: 1024px) {
  .hero { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 5rem; min-height: 50.5rem; padding-block: 3.5rem 4.75rem; }
  .hero-copy { align-self: start; padding-top: 5rem; padding-left: clamp(1rem, 4vw, 4.5rem); }
  .hero-copy .eyebrow { position: absolute; top: 2.75rem; right: 0; width: 11.5rem; margin: 0; line-height: 1.5; }
  .hero-copy h1 { font-size: clamp(4.5rem, 6.5vw, 6.5rem); }
  .hero-ability { margin-top: 5.75rem; }
  .hero-visual { align-self: stretch; justify-self: end; display: grid; align-items: start; width: calc(100% - 2rem); margin-right: 2rem; padding-top: 1rem; }
  .hero-material { width: 100%; }
  .hero-proof { top: 17%; right: 8%; width: 39%; }
  .hero-margin-note { right: -.3rem; bottom: 5.5rem; }
  #services { padding-top: 2.25rem; }
  .section-bridge { grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr); gap: clamp(4rem, 8vw, 8rem); }
  .studio-process-image { margin-top: 0; }
  .services-product-grid { grid-template-columns: minmax(0, 1.15fr) minmax(19rem, .85fr); align-items: stretch; }
  .product-case { display: flex; flex-direction: column; justify-content: center; }
  .process-layout { grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr); }
  .process-copy { grid-column: 2; }
  .steps { margin-top: 3rem; }
  .step { grid-template-columns: minmax(9rem, .65fr) 1.35fr; gap: 2rem; padding-left: 4rem; }
  .step p { margin-top: .05rem; }
  .about-layout { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); }
  .contact-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 3rem; }
  .contact-card { grid-template-columns: 1fr; }
  .contact-card a { grid-column: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

@media print {
  .site-header, .site-footer, .skip-link { display: none; }
  body.theme-poetic-coastal { background: #fff; color: #000; }
  .section { padding-block: 1.5rem; }
  .hero-proof, .product-case { box-shadow: none; }
}