/* Site appearance and interaction layer. Product screen colors remain explicit. */
:root {
  color-scheme: dark;
  --bg: oklch(.115 0 0);
  --white: oklch(.17 0 0);
  --surface: oklch(.205 0 0);
  --raised: oklch(.26 0 0);
  --ink: oklch(.96 0 0);
  --muted: oklch(.7 0 0);
  --line: oklch(.3 0 0);
  --line-strong: oklch(.47 0 0);
  --subtle: oklch(.53 0 0);
  --action: oklch(.96 0 0);
  --action-hover: oklch(1 0 0);
  --action-text: oklch(.13 0 0);
  --nav-bg: oklch(.115 0 0 / .86);
  --story-bg: oklch(.16 0 0);
  --halo: oklch(.8 0 0 / .13);
  --ease: cubic-bezier(.22, 1, .36, 1);
  font-optical-sizing: auto;
}
:root[data-appearance="light"] {
  color-scheme: light;
  --bg: oklch(.99 0 0);
  --white: oklch(1 0 0);
  --surface: oklch(.96 0 0);
  --raised: oklch(.925 0 0);
  --ink: oklch(.16 0 0);
  --muted: oklch(.49 0 0);
  --line: oklch(.89 0 0);
  --line-strong: oklch(.72 0 0);
  --subtle: oklch(.56 0 0);
  --action: oklch(.16 0 0);
  --action-hover: oklch(.3 0 0);
  --action-text: oklch(.99 0 0);
  --nav-bg: oklch(.99 0 0 / .88);
  --story-bg: oklch(.12 0 0);
  --halo: oklch(.5 0 0 / .12);
}
html, body { background: var(--bg); }
body { color: var(--ink); }
body, .header, .principles, .feature-visual, .download-card, .footer, dialog {
  transition: background-color 420ms var(--ease), color 350ms ease, border-color 350ms ease;
}
.hero-description, .hero-meta, .chapter-badge, .hero-subtitle,
.product-controls, .section-intro, .feature-panel, .download-heading, .faq-list {
  transition: color 350ms ease;
}
::selection { background: var(--ink); color: var(--bg); }
.header {
  height: 84px;
  background: var(--bg);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}
.header.scrolled { box-shadow: 0 1px 0 color-mix(in oklch, var(--line) 65%, transparent); }
.nav { gap: 34px; }
.brand { gap: 12px; letter-spacing: -.025em; font-weight: 600; }
.brand-image {
  width: 40px;
  height: 40px;
  padding: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: 10px;
  background: oklch(0 0 0);
  transform: none;
}
.brand-image img, .footer-main .brand-image img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: contain;
  object-position: center;
  transform: none;
}
.nav-links { font-size: 12px; gap: 30px; }
.nav-links a { position: relative; padding-block: 10px; }
.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 240ms var(--ease);
}
.nav-links a:hover::after { transform: scaleX(1); }
.nav-actions { display: flex; align-items: center; gap: 20px; }
.nav-download {
  min-height: 43px;
  border-radius: 999px;
  padding: 7px 9px 7px 19px;
  gap: 16px;
  margin: 0;
  background: var(--action);
  color: var(--action-text);
  transition: transform 200ms var(--ease), background-color 300ms ease, color 300ms ease;
}
.nav-download > span {
  width: 27px;
  height: 27px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: color-mix(in oklch, currentColor 9%, transparent);
  font-size: 17px;
  transition: transform 230ms var(--ease);
}
.nav-download:hover { transform: translateY(-1px); background: var(--action-hover); }
.nav-download:hover > span { transform: rotate(45deg); }
.nav-download:active { transform: scale(.97); transition-duration: 100ms; }
.appearance-toggle {
  display: flex;
  position: relative;
  align-items: center;
  justify-content: space-between;
  width: 70px;
  height: 36px;
  padding: 0 9px;
  flex-shrink: 0;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  transition: border-color 250ms, background-color 350ms, transform 180ms var(--ease);
}
.appearance-toggle:hover { border-color: var(--line-strong); }
.appearance-toggle:active { transform: scale(.95); }
.appearance-toggle svg { width: 15px; height: 15px; position: relative; z-index: 1; stroke-width: 1.5; }
.appearance-thumb {
  position: absolute;
  width: 28px;
  height: 28px;
  left: 3px;
  top: 3px;
  border-radius: 50%;
  background: var(--raised);
  transition: transform 380ms var(--ease), background-color 350ms;
}
.appearance-moon { color: var(--ink); }
[data-appearance="light"] .appearance-thumb { transform: translateX(34px); background: var(--white); }
[data-appearance="light"] .appearance-moon { color: var(--muted); }
[data-appearance="light"] .appearance-sun { color: var(--ink); }
.hero { min-height: 742px; padding-top: 31px; padding-bottom: 86px; }
.chapter-badge { color: var(--muted); font-size: 11px; margin-bottom: 30px; }
.badge-mark { border-color: var(--line-strong); }
.badge-separator { color: var(--subtle); }
.chapter-badge strong { color: var(--ink); font-weight: 500; }
.hero h1 { font-weight: 600; line-height: 1.18; }
.hero-word::after { animation: none; height: 2px; bottom: 0; background: var(--ink); }
.word-period { color: var(--subtle); }
.hero-subtitle { font-weight: 450; }
.hero-description { color: var(--muted); }
.hero-meta { color: var(--muted); }
.meta-line { background: var(--line-strong); }
.button {
  min-height: 54px;
  padding: 7px 10px 7px 24px;
  gap: 28px;
  border-radius: 999px;
  letter-spacing: .01em;
  transition: transform 220ms var(--ease), background-color 300ms ease, color 300ms ease, border-color 300ms ease;
}
.button-dark { background: var(--action); color: var(--action-text); border: 0; }
.button-dark:hover { background: var(--action-hover); }
.button-outline {
  background: color-mix(in oklch, var(--ink) 3%, transparent);
  border-color: var(--line-strong);
}
.button-outline:hover { background: var(--raised); border-color: var(--line-strong); }
.button > svg, .button > span {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: color-mix(in oklch, currentColor 9%, transparent);
  transition: transform 280ms var(--ease), background-color 280ms;
}
.button > svg { padding: 8px; stroke-width: 1.6; }
.button > span { display: grid; place-items: center; font-size: 19px; }
.button:hover { transform: translateY(-1px) scale(1.015); }
.button:hover > svg { transform: translateY(2px); }
.button:hover > span { transform: translate(1px, -1px); }
.button:active { transform: scale(.97); transition-duration: 100ms; }
.hero-product { isolation: isolate; }
.product-orbit {
  z-index: 0;
  pointer-events: none;
  top: -10px;
  width: 570px;
  height: 630px;
  max-width: 100%;
  background: radial-gradient(ellipse at 50% 48%, var(--halo), transparent 67%);
  transition: background 450ms;
}
.phone {
  z-index: 1;
  transform: rotate(-4deg);
  animation: none;
  box-shadow: 0 30px 45px -23px oklch(0 0 0 / .5);
  background: linear-gradient(110deg, oklch(.65 0 0), oklch(.22 0 0) 12%, oklch(.5 0 0) 70%, oklch(.24 0 0));
}
.phone-screen { transition: background-color 380ms ease, color 320ms ease; }
.phone[data-theme="dark"] .phone-screen {
  --app-bg: oklch(.17 0 0);
  --app-ink: oklch(.96 0 0);
  --app-muted: oklch(.72 0 0);
  --app-line: oklch(.29 0 0);
  --app-block: oklch(.28 0 0);
}
.product-side-note { color: var(--subtle); }
.product-tag {
  z-index: 2;
  background: var(--white);
  animation: none;
  transform: none;
  border-radius: 12px;
  padding: 18px 21px;
  box-shadow: 0 12px 35px oklch(0 0 0 / .12);
  transition: background-color 400ms, color 350ms;
}
.tag-check { background: var(--ink); color: var(--white); }
.product-controls { color: var(--muted); z-index: 2; }
.hero-scroll { color: var(--muted); }
.scroll-track { background: var(--line-strong); }
.hero-scroll > span:last-child { transition: transform 250ms var(--ease); }
.hero-scroll:hover > span:last-child { transform: translateY(3px); }
.principles { background: var(--white); }
.principle-grid { padding-block: 39px; }
.principle-symbol { color: var(--muted); }
.section-intro h2, .download h2 { font-weight: 500; }
.feature-tabs {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  width: min(100%, 388px);
  gap: 0;
  padding: 5px;
  border: 0;
  border-radius: 999px;
  background: var(--surface);
  transition: background-color 400ms;
}
.feature-tabs button { padding: 11px 8px; z-index: 1; font-size: 12px; line-height: 1.5; border-radius: 999px; }
.feature-tabs button[aria-selected="true"] { font-weight: 500; }
.feature-tabs button[aria-selected="true"]::after { display: none; }
.feature-tab-indicator {
  position: absolute;
  top: 5px;
  left: 5px;
  height: calc(100% - 10px);
  width: calc((100% - 10px) / 3);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: transform 380ms var(--ease), background-color 400ms, border-color 400ms;
  pointer-events: none;
}
.feature-visual { border-radius: 12px; height: 223px; }
.import-arrow { color: var(--subtle); }
.week-visual > div { border-color: var(--line-strong); }
.theme-tile { background: oklch(.99 0 0); color: oklch(.16 0 0); border-color: oklch(.88 0 0); }
.theme-tile i { background: oklch(.92 0 0); }
.theme-tile:last-child { background: oklch(.17 0 0); color: oklch(.96 0 0); border-color: oklch(.3 0 0); }
.theme-tile:last-child i { background: oklch(.31 0 0); }
.feature-panel-copy { padding-top: 28px; }
.feature-panel-copy > p { font-size: 13px; }
.feature-footer { font-size: 11px; }
.story { background: var(--story-bg); transition: background-color 450ms; }
.story-inner { padding-bottom: 76px; }
.story-top, .story-content, .club-about { position: relative; z-index: 2; }
.story h2 { font-weight: 450; }
.story-prose > p:not(.story-lead) { font-size: 14px; }
.story-prose > p.story-ending { font-size: 17px; }
.story-watermark { opacity: .035; bottom: 110px; left: -100px; }
.club-about {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 95px;
  padding-top: 45px;
  margin-top: 61px;
  border-top: 1px solid oklch(.34 0 0);
  scroll-margin-top: 112px;
}
.club-heading { position: relative; padding-top: 3px; }
.club-emblem { font-size: 12px; letter-spacing: -.04em; color: oklch(.7 0 0); display: block; margin-bottom: 15px; }
.club-heading h3 { font-size: 27px; font-weight: 450; letter-spacing: -.025em; }
.club-heading > p { font-size: 13px; color: oklch(.77 0 0); margin-top: 12px; }
.club-chapter { display: block; font-size: 10px; color: oklch(.68 0 0); margin-top: 25px; }
.club-copy > p { color: oklch(.76 0 0); font-size: 13px; line-height: 2.1; max-width: 45ch; }
.club-copy > p + p { margin-top: 14px; }
.club-button {
  color: oklch(.97 0 0);
  background: oklch(.24 0 0);
  border: 1px solid oklch(.42 0 0);
  margin-top: 24px;
  min-height: 49px;
  font-size: 12px;
}
.club-button:hover { background: oklch(.31 0 0); }
.download-card { border-radius: 14px; padding: 34px 35px 30px; }
.download-card.web { background: var(--surface); }
.download-card > .button { margin-top: 26px; gap: 30px; }
.download-card .text-button { margin-top: 21px; }
.download-card h3 { font-weight: 500; }
.text-button { transition: color 250ms; }
.text-button > span { transition: transform 250ms var(--ease); }
.text-button:hover > span { transform: translate(2px, -2px); }
.faq h2 { font-weight: 500; }
.faq-list summary { transition: color 200ms; }
.faq-list summary:hover { color: var(--muted); }
.faq-list details[open] summary { color: var(--ink); }
.footer { background: var(--white); }
.footer-main .brand-image { width: 34px; height: 34px; padding: 2px; border-radius: 9px; }
.footer-bottom > a { color: var(--muted); }
.footer-bottom > a:hover { color: var(--ink); }
dialog { background: var(--white); color: var(--ink); border: 1px solid var(--line); border-radius: 16px; box-shadow: none; }
dialog::backdrop { background: oklch(.05 0 0 / .7); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.qr { border-radius: 8px; background: oklch(1 0 0); padding: 6px; }
.verify-info > .button { padding: 14px 24px; }
.ios-steps li > span { background: var(--surface); }
.dialog-close { transition: color 180ms, transform 180ms; }
.dialog-close:hover { color: var(--ink); transform: rotate(90deg); }
.week-selector button { transition: background-color 200ms, transform 150ms var(--ease); }
.week-selector button:active { transform: scale(.9); }
.week-selector button:disabled { opacity: .35; cursor: default; }
.motion-in-flight, .motion-prepared { will-change: transform, opacity; }
.motion-title { display: flow-root; }
.title-line {
  display: block;
  overflow: hidden;
  overflow: clip;
  padding: 0 .025em .12em;
  margin: 0 -.025em -.12em;
}
.title-line__text {
  display: block;
  transform-origin: left bottom;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}
.motion-title .hero-word::after { display: none; }
.title-rule {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform-origin: left center;
  pointer-events: none;
}
.hero-word .title-rule { width: calc(100% - .93em); height: 2px; }
.story .mission-title .mission-emphasis { position: relative; display: inline-block; text-decoration: none; }
.story .mission-title .title-line, .story .mission-title .title-line__text { color: inherit; }
.story .mission-title .title-rule { color: inherit; }

@media (min-width: 1500px) {
  .hero { min-height: 790px; padding-top: 48px; }
}
@media (max-width: 1100px) {
  .nav { gap: 25px; }
  .nav-links { gap: 23px; }
  .nav-actions { gap: 15px; }
  .nav-download { gap: 10px; font-size: 11px; padding-left: 16px; }
  .hero { min-height: 710px; }
  .club-about { gap: 60px; }
  .download-card { padding: 29px; }
}
@media (max-width: 820px) {
  .header { height: 78px; }
  .nav { gap: 19px; }
  .brand { font-size: 18px; gap: 9px; }
  .brand-image { width: 35px; height: 35px; }
  .nav-links { gap: 18px; font-size: 11px; }
  .nav-actions { gap: 12px; }
  .nav-download { padding: 6px 7px 6px 13px; gap: 8px; min-height: 39px; font-size: 10px; }
  .nav-download > span { width: 24px; height: 24px; font-size: 16px; }
  .appearance-toggle { width: 62px; height: 34px; padding-inline: 7px; }
  .appearance-thumb { width: 26px; height: 26px; }
  [data-appearance="light"] .appearance-thumb { transform: translateX(28px); }
  .appearance-toggle svg { width: 14px; height: 14px; }
  .hero { min-height: 658px; padding-top: 31px; padding-bottom: 80px; }
  .chapter-badge { font-size: 9px; }
  .hero-actions .button { padding: 6px 7px 6px 17px; gap: 12px; min-height: 46px; }
  .hero-actions .button > svg, .hero-actions .button > span { width: 29px; height: 29px; }
  .hero-actions .button > svg { padding: 7px; }
  .product-tag { padding: 14px 16px; }
  .principle-grid { padding-block: 30px; }
  .feature-visual { height: 195px; }
  .feature-tabs button { font-size: 11px; }
  .feature-panel-copy > p { font-size: 12px; }
  .feature-footer { font-size: 10px; }
  .story-prose > p:not(.story-lead) { font-size: 12px; }
  .story-prose > p.story-ending { font-size: 15px; }
  .club-about { gap: 40px; margin-top: 48px; padding-top: 35px; }
  .club-heading h3 { font-size: 23px; }
  .club-copy > p { font-size: 12px; }
  .club-button { padding-left: 17px; gap: 18px; font-size: 11px; }
  .download-card { padding: 26px 24px; }
  .download-card > .button { min-width: 0; padding-left: 18px; gap: 21px; font-size: 11px; min-height: 48px; }
  .download-card > .button > svg, .download-card > .button > span { width: 29px; height: 29px; }
}
@media (max-width: 650px) {
  .header { height: 75px; }
  .nav { gap: 17px; }
  .brand { font-size: 18px; gap: 10px; }
  .brand-image { width: 36px; height: 36px; padding: 2px; }
  .nav-actions { margin-left: auto; }
  .nav-download { display: none; }
  .appearance-toggle { width: 66px; height: 36px; padding-inline: 8px; }
  .appearance-thumb { width: 28px; height: 28px; }
  [data-appearance="light"] .appearance-thumb { transform: translateX(30px); }
  .nav-links { top: 75px; background: var(--bg); gap: 22px; font-size: 14px; }
  .nav-links a { padding-block: 3px; }
  .nav-links a::after { display: none; }
  .hero { padding-top: 44px; padding-bottom: 72px; min-height: 0; gap: 53px; }
  .chapter-badge { font-size: 10px; margin-bottom: 27px; }
  .hero h1 { font-size: clamp(48px, 13.4vw, 76px); font-weight: 550; }
  .hero-subtitle { font-size: 19px; }
  .hero-description { font-size: 12px; }
  .hero-actions { gap: 11px; }
  .hero-actions .button { min-height: 49px; padding: 6px 8px 6px 20px; gap: 20px; font-size: 12px; }
  .hero-actions .button > svg, .hero-actions .button > span { width: 31px; height: 31px; }
  .hero-actions .button > svg { padding: 8px; }
  .hero-product { padding-left: 12px; }
  .product-orbit { top: -15px; height: 580px; }
  .product-tag { padding: 16px; bottom: 117px; }
  .product-controls { margin-top: 27px; }
  .principle-grid { padding-block: 10px; }
  .principle { padding-block: 26px; }
  .section-intro h2 { font-size: 35px; }
  .feature-tabs { margin-top: 4px; width: 100%; }
  .feature-tabs button { font-size: 12px; }
  .feature-panel { padding-top: 22px; }
  .feature-visual { height: 208px; }
  .feature-panel-copy { padding-top: 25px; }
  .feature-panel-copy > p { font-size: 12px; }
  .feature-footer { font-size: 10px; }
  .story-inner { padding-bottom: 57px; }
  .story h2 { font-size: 46px; }
  .story-prose > p:not(.story-lead) { font-size: 13px; }
  .story-prose > p.story-ending { font-size: 16px; }
  .story-watermark { bottom: 300px; }
  .club-about { display: block; padding-top: 34px; margin-top: 38px; }
  .club-emblem { margin-bottom: 13px; }
  .club-heading h3 { font-size: 27px; }
  .club-heading > p { font-size: 12px; margin-top: 11px; }
  .club-chapter { margin-top: 17px; font-size: 10px; }
  .club-copy { padding-top: 24px; }
  .club-copy > p { font-size: 12px; line-height: 2.1; }
  .club-copy > p + p { margin-top: 13px; }
  .club-button { font-size: 12px; margin-top: 23px; min-height: 48px; gap: 24px; }
  .download-card { padding: 28px; }
  .download-card > .button { min-width: 0; min-height: 50px; font-size: 12px; gap: 30px; padding-left: 22px; }
  .download-card > .button > svg, .download-card > .button > span { width: 31px; height: 31px; }
  .footer-main .brand-image { width: 33px; height: 33px; }
  .footer-bottom > a { font-size: 9px; }
  dialog { padding-inline: 25px; }
}
@media (max-width: 360px) {
  .nav { gap: 13px; }
  .brand { font-size: 17px; gap: 8px; }
  .hero-actions .button { padding-left: 16px; gap: 12px; font-size: 11px; }
  .hero-product { padding-left: 8px; }
  .product-tag { padding: 14px; gap: 9px; }
  .download-card { padding: 25px; }
}
@media (prefers-reduced-transparency: reduce) {
  .header { background: var(--bg); -webkit-backdrop-filter: none; backdrop-filter: none; }
  dialog::backdrop { -webkit-backdrop-filter: none; backdrop-filter: none; }
}
@media (prefers-contrast: more) {
  .header { background: var(--bg); }
  .button-outline, .appearance-toggle { border-color: var(--ink); }
}
@media (prefers-reduced-motion: reduce) {
  .phone { transform: rotate(-4deg); }
  .product-tag { transform: none; }
  .button:hover, .button:active, .nav-download:hover, .nav-download:active { transform: none; }
  .motion-in-flight, .motion-prepared { will-change: auto; }
}

/* Brand emphasis and the specular button treatment from the supplied site. */
.chapter-badge { font-size: 16px; gap: 10px; margin-bottom: 29px; line-height: 1.6; }
.badge-mark { width: 29px; height: 29px; font-size: 11px; flex-shrink: 0; }
.badge-club-name, .chapter-badge strong { white-space: nowrap; }
.chapter-badge strong { font-weight: 600; }
.hero-mission { font-size: 21px; line-height: 1.65; margin-top: 25px; letter-spacing: -.015em; }
.story-identity { font-size: 15px; gap: 13px; }
.story-location { font-size: 12px; }
.story .mission-title { font-size: clamp(32px, 4.2vw, 58px); line-height: 1.36; letter-spacing: -.035em; }
.story .mission-opening { color: oklch(.7 0 0); }
.story .mission-emphasis { color: oklch(.98 0 0); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .14em; }
.story-signature { margin-top: 0; margin-bottom: 22px; font-size: 12px; color: oklch(.75 0 0); }
.mission-caption { font-size: 13px; line-height: 2; color: oklch(.73 0 0); margin-top: 23px; }
.club-chapter { font-size: 14px; color: oklch(.8 0 0); }
.download-footnote { font-size: 12px; }
.button, .nav-download { position: relative; isolation: isolate; overflow: hidden; border-radius: 14px; }
.button, .hero-actions .button, .download-card > .button {
  min-height: 55px;
  padding: 0 24px;
  gap: 31px;
  font-size: 14px;
  font-weight: 500;
}
.button::before, .nav-download::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(125px circle at var(--pointer-x, 50%) var(--pointer-y, 0%), oklch(1 0 0 / .16), transparent 72%);
  opacity: 0;
  transition: opacity 240ms ease;
}
.button:hover::before, .button:focus-visible::before,
.nav-download:hover::before, .nav-download:focus-visible::before { opacity: 1; }
.button-dark {
  border: 0;
  background: linear-gradient(165deg, var(--action), color-mix(in oklch, var(--action) 92%, var(--action-text)));
  box-shadow: inset 0 1px 0 oklch(1 0 0 / .3), inset 0 -1px 0 oklch(0 0 0 / .12);
}
.button-dark:hover { background: linear-gradient(165deg, var(--action-hover), color-mix(in oklch, var(--action-hover) 93%, var(--action-text))); }
.button-outline {
  border-color: color-mix(in oklch, var(--ink) 28%, transparent);
  background: linear-gradient(160deg, color-mix(in oklch, var(--ink) 6%, transparent), color-mix(in oklch, var(--ink) 1%, transparent));
  box-shadow: inset 0 1px 0 color-mix(in oklch, var(--ink) 7%, transparent);
}
.button-outline:hover { border-color: color-mix(in oklch, var(--ink) 46%, transparent); background: color-mix(in oklch, var(--ink) 5%, transparent); }
.button > svg, .button > span, .hero-actions .button > svg, .hero-actions .button > span,
.download-card > .button > svg, .download-card > .button > span, .nav-download > span {
  width: 20px;
  height: 20px;
  padding: 0;
  background: transparent;
  border-radius: 0;
}
.button > svg { stroke-width: 1.6; }
.button > span { font-size: 21px; }
.button:hover { transform: translateY(-2px); }
.button:active { transform: scale(.975); transition-duration: 100ms; }
.nav-download { min-height: 44px; padding: 0 18px; gap: 20px; border-radius: 12px; }
.nav-download > span { font-size: 19px; }
.nav-download:hover > span { transform: translate(2px, -2px); }
.club-button { background: linear-gradient(165deg, oklch(.26 0 0), oklch(.22 0 0)); border-color: oklch(.43 0 0); }
.club-button:hover { background: oklch(.3 0 0); }

@media (max-width: 820px) {
  .chapter-badge { font-size: 14px; gap: 8px; }
  .hero-mission { font-size: 18px; }
  .hero-actions .button { padding: 0 18px; gap: 22px; min-height: 49px; font-size: 12px; }
  .nav-download { min-height: 40px; padding-inline: 13px; gap: 13px; }
  .nav-download > span { width: 18px; height: 18px; font-size: 18px; }
  .story-identity { font-size: 13px; gap: 9px; }
  .story-location { font-size: 10px; }
  .download-card > .button { padding-inline: 20px; gap: 24px; font-size: 12px; min-height: 49px; }
  .download-footnote { font-size: 10px; }
}
@media (max-width: 650px) {
  .chapter-badge { font-size: 14px; margin-bottom: 27px; gap: 8px; }
  .badge-mark { width: 25px; height: 25px; font-size: 10px; }
  .hero-mission { font-size: 18px; }
  .hero-actions .button { min-height: 51px; padding: 0 21px; gap: 25px; font-size: 13px; }
  .story .mission-title { font-size: clamp(28px, 8.4vw, 44px); line-height: 1.4; }
  .story-signature { margin-bottom: 20px; font-size: 12px; }
  .mission-caption { margin-top: 21px; font-size: 12px; }
  .story-identity { font-size: 13px; gap: 8px; }
  .club-chapter { font-size: 13px; }
  .download-card > .button { min-height: 51px; font-size: 13px; gap: 30px; padding-inline: 23px; }
  .download-footnote { font-size: 11px; }
}
@media (max-width: 360px) {
  .chapter-badge { font-size: 13px; gap: 7px; }
  .hero-mission { font-size: 16px; }
  .hero-actions .button { padding-inline: 17px; gap: 18px; font-size: 12px; }
}
@media (hover: none), (prefers-reduced-motion: reduce) {
  .button:hover, .button:active { transform: none; }
}