:root {
  color-scheme: light dark;
  --white: #ffffff;
  --paper: #ffffff;
  --surface: #ffffff;
  --surface-elevated: #ffffff;
  --surface-soft: #fbfaf8;
  --ink: #162033;
  --ink-soft: #273248;
  --muted: #677083;
  --subtle: #f6f5f2;
  --warm: #f4eee9;
  --line: #dedfdc;
  --line-strong: #cfd2d2;
  --line-dark: rgba(255,255,255,.16);
  --copper: #a95f3d;
  --copper-dark: #7f3f26;
  --cream: #f2d6c6;
  --accent-soft: #f8ebe4;
  --success: #6f9a81;
  --solid-dark: #162033;
  --on-dark: #ffffff;
  --accent-text: #7f3f26;
  --nav-text: #434c5e;
  --on-accent: #ffffff;
  --header-bg: rgba(255,255,255,.86);
  --header-bg-solid: rgba(255,255,255,.96);
  --glass: rgba(255,255,255,.84);
  --glass-line: rgba(255,255,255,.75);
  --button-light-bg: #ffffff;
  --button-light-text: #162033;
  --shadow-sm: 0 14px 42px rgba(22,32,51,.09);
  --shadow-md: 0 24px 64px rgba(22,32,51,.12);
  --shadow-lg: 0 42px 110px rgba(22,32,51,.17);
  --shadow-card: 0 18px 52px rgba(22,32,51,.075);
  --shadow-float: 0 30px 80px rgba(22,32,51,.14);
  --radius-sm: 14px;
  --radius-md: 24px;
  --radius-lg: 40px;
  --container: 1200px;
  --header-height: 78px;
  --header-height-mobile: 66px;
  --font-sans: "Pretendard", "Apple SD Gothic Neo", "Noto Sans KR", "Segoe UI", sans-serif;
  --font-serif: "Noto Serif KR", "Nanum Myeongjo", Georgia, serif;
}

:root[data-theme="light"] { color-scheme: light; }

:root[data-theme="dark"] {
  color-scheme: dark;
  --white: #0c121c;
  --paper: #0c121c;
  --surface: #141d2b;
  --surface-elevated: #182334;
  --surface-soft: #101824;
  --ink: #f2eee8;
  --ink-soft: #d5dbe5;
  --muted: #a8b1c0;
  --subtle: #151e2c;
  --warm: #2a211f;
  --line: #303a4a;
  --line-strong: #3b4759;
  --copper: #dc936d;
  --success: #8db99d;
  --solid-dark: #1d2a40;
  --accent-text: #efa27c;
  --nav-text: #d5dbe5;
  --on-accent: #1b120e;
  --cream: #e6c4b2;
  --accent-soft: #30211f;
  --header-bg: rgba(12,18,28,.84);
  --header-bg-solid: rgba(12,18,28,.96);
  --glass: rgba(20,29,43,.88);
  --glass-line: rgba(255,255,255,.13);
  --shadow-sm: 0 12px 40px rgba(0,0,0,.24);
  --shadow-md: 0 24px 64px rgba(0,0,0,.3);
  --shadow-lg: 0 38px 100px rgba(0,0,0,.38);
  --shadow-card: 0 18px 52px rgba(0,0,0,.24);
  --shadow-float: 0 34px 90px rgba(0,0,0,.34);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    color-scheme: dark;
    --white: #0c121c;
    --paper: #0c121c;
    --surface: #141d2b;
    --surface-elevated: #182334;
    --surface-soft: #101824;
    --ink: #f2eee8;
    --ink-soft: #d5dbe5;
    --muted: #a8b1c0;
    --subtle: #151e2c;
    --warm: #2a211f;
    --line: #303a4a;
    --line-strong: #3b4759;
    --copper: #dc936d;
    --success: #8db99d;
    --solid-dark: #1d2a40;
    --accent-text: #efa27c;
    --nav-text: #d5dbe5;
    --on-accent: #1b120e;
    --cream: #e6c4b2;
    --accent-soft: #30211f;
    --header-bg: rgba(12,18,28,.84);
    --header-bg-solid: rgba(12,18,28,.96);
    --glass: rgba(20,29,43,.88);
    --glass-line: rgba(255,255,255,.13);
    --shadow-sm: 0 12px 40px rgba(0,0,0,.24);
    --shadow-md: 0 24px 64px rgba(0,0,0,.3);
    --shadow-lg: 0 38px 100px rgba(0,0,0,.38);
    --shadow-card: 0 18px 52px rgba(0,0,0,.24);
    --shadow-float: 0 34px 90px rgba(0,0,0,.34);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 18px); scrollbar-gutter: stable; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body { min-width: 320px; margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font-sans); font-size: 16px; line-height: 1.72; letter-spacing: -.006em; overflow-x: hidden; word-break: keep-all; overflow-wrap: break-word; text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased; }
body.large-text { font-size: 18px; }
body.menu-open { overflow: hidden; }
button, input, textarea, select { font: inherit; }
button, a { touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
a { color: inherit; text-decoration: none; text-underline-offset: .18em; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }
section { position: relative; background: var(--white); isolation: isolate; }
main { overflow-x: clip; overflow-y: visible; }
[hidden] { display: none !important; }
::selection { background: var(--cream); color: var(--solid-dark); }

.sr-only { 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; top: 10px; left: 10px; z-index: 1000; padding: .75rem 1rem; border-radius: 8px; background: var(--solid-dark); color: var(--on-dark); transform: translateY(-160%); transition: transform .2s; }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid #d99975; outline-offset: 4px; }
.container { width: min(var(--container), calc(100% - 3rem)); margin-inline: auto; }
.section { position: relative; padding: clamp(6.5rem, 9vw, 9rem) 0; }

.reading-progress { position: fixed; inset: 0 0 auto; z-index: 120; height: 3px; background: transparent; }
.reading-progress span { display: block; width: 0; height: 100%; background: var(--copper); }

.site-header { position: fixed; inset: 0 0 auto; z-index: 100; padding-top: env(safe-area-inset-top); background: var(--header-bg); border-bottom: 1px solid transparent; backdrop-filter: blur(20px) saturate(145%); transition: border-color .25s, box-shadow .25s, background .25s; }
.site-header.is-scrolled { border-color: var(--line); background: var(--header-bg-solid); box-shadow: 0 12px 40px rgba(0,0,0,.09); }
.nav-shell { width: min(1320px, calc(100% - 3rem)); min-height: var(--header-height); margin-inline: auto; display: flex; align-items: center; justify-content: space-between; gap: 2rem; transition: min-height .25s ease; }
.site-header.is-scrolled .nav-shell { min-height: 70px; }
.brand, .footer-brand { display: inline-flex; align-items: center; gap: .8rem; }
.brand-logo { flex: 0 0 auto; display: block; height: auto; object-fit: contain; }
.brand-logo-wide { width: 88px; aspect-ratio: 480 / 329; padding: 3px; border: 1px solid var(--line); border-radius: 10px; background: #fff; box-shadow: 0 7px 20px rgba(10,25,57,.12); }
.brand-logo-header { width: 68px; max-height: 48px; transition: width .25s ease, box-shadow .25s ease; }
.site-header.is-scrolled .brand-logo-header { width: 60px; box-shadow: 0 4px 14px rgba(10,25,57,.1); }
.brand-copy { display: grid; line-height: 1.15; }
.brand-copy strong { font-family: var(--font-serif); font-size: 1.04rem; letter-spacing: -.02em; white-space: nowrap; }
.brand-copy small { margin-top: .25rem; color: var(--muted); font-size: .54rem; letter-spacing: .17em; white-space: nowrap; transition: opacity .2s; }
.site-header.is-scrolled .brand-copy small { opacity: .72; }
.desktop-nav { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2rem); padding: .2rem .8rem; border: 1px solid transparent; border-radius: 999px; transition: border-color .25s, background .25s, box-shadow .25s; }
.site-header.is-scrolled .desktop-nav { border-color: var(--line); background: var(--surface-soft); box-shadow: inset 0 1px rgba(255,255,255,.08); }
.desktop-nav a { position: relative; padding: .7rem 0; color: var(--nav-text); font-size: .86rem; font-weight: 700; }
.desktop-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -.45rem; height: 1px; background: var(--copper); transition: right .25s; }
.desktop-nav a:hover::after, .desktop-nav a:focus-visible::after, .desktop-nav a.is-active::after { right: 0; }
.nav-tools { display: flex; min-width: 0; align-items: center; justify-content: flex-end; gap: .5rem; }
.language-control { position: relative; display: inline-flex; min-width: 0; }
.language-control select { width: 106px; height: 44px; padding: 0 1.7rem 0 .8rem; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--ink); font-size: .76rem; font-weight: 750; cursor: pointer; }
.voice-button, .theme-button, .text-size-button, .menu-button { border: 1px solid var(--line); background: var(--surface); box-shadow: 0 4px 14px rgba(22,32,51,.04); cursor: pointer; transition: border-color .2s, background .2s, transform .2s; }
.voice-button { display: inline-flex; min-width: 44px; height: 44px; align-items: center; justify-content: center; gap: .38rem; padding: 0 .8rem; border-radius: 999px; color: var(--ink); font-size: .75rem; font-weight: 800; white-space: nowrap; }
.voice-button[aria-pressed="true"] { border-color: var(--copper); background: var(--accent-soft); color: var(--accent-text); }
.voice-button > span[aria-hidden="true"] { font-size: 1rem; transform: rotate(20deg); }
.theme-button { position: relative; width: 44px; height: 44px; border-radius: 50%; overflow: hidden; }
.theme-icon { position: absolute; inset: 0; display: grid; place-items: center; font-size: 1.05rem; transition: opacity .2s, transform .25s; }
.theme-icon-moon { opacity: 0; transform: translateY(14px) rotate(-30deg); }
:root[data-theme="dark"] .theme-icon-sun { opacity: 0; transform: translateY(-14px) rotate(30deg); }
:root[data-theme="dark"] .theme-icon-moon { opacity: 1; transform: translateY(0) rotate(0); }
.text-size-button { width: 44px; height: 44px; border-radius: 50%; font-size: .8rem; font-weight: 800; }
.text-size-button span { color: var(--copper); }
.text-size-button[aria-pressed="true"] { background: var(--warm); border-color: #d9bcae; }
.nav-cta { display: inline-flex; align-items: center; gap: .5rem; min-height: 44px; padding: .65rem 1.1rem; border-radius: 999px; background: var(--solid-dark); color: var(--on-dark); font-size: .84rem; font-weight: 800; box-shadow: 0 10px 24px rgba(22,32,51,.14); transition: background .2s, transform .2s, box-shadow .2s; }
.nav-cta:hover { background: var(--copper-dark); transform: translateY(-1px); }
.menu-button { display: none; width: 44px; height: 44px; border-radius: 50%; padding: 0 11px; }
.menu-button span:not(.sr-only) { display: block; height: 1px; background: var(--ink); transition: transform .25s; }
.menu-button span:last-child { margin-top: 6px; }
.menu-button[aria-expanded="true"] span:nth-of-type(2) { transform: translateY(3.5px) rotate(45deg); }
.menu-button[aria-expanded="true"] span:nth-of-type(3) { transform: translateY(-3.5px) rotate(-45deg); }
.mobile-menu { position: absolute; top: 100%; right: 0; left: 0; width: 100%; height: calc(100dvh - var(--header-height) - env(safe-area-inset-top)); padding: 1.5rem max(1.5rem, calc((100vw - var(--container)) / 2)) max(2rem, env(safe-area-inset-bottom)); overflow-y: auto; overscroll-behavior: contain; background: linear-gradient(180deg, var(--header-bg-solid), var(--white)); box-shadow: 0 24px 50px rgba(0,0,0,.12); }
.mobile-menu:not([hidden]) { animation: mobile-menu-enter .22s ease both; }
.mobile-menu a { display: flex; min-height: 58px; align-items: center; justify-content: space-between; padding: .75rem 0; border-bottom: 1px solid var(--line); font-family: var(--font-serif); font-size: 1.35rem; }
.mobile-menu a::after { content: "↘"; color: var(--copper); font-family: var(--font-sans); font-size: .9rem; }
.voice-status { position: absolute; top: calc(100% + .45rem); right: max(1rem, calc((100vw - 1320px) / 2)); width: min(32rem, calc(100vw - 2rem)); margin: 0; padding: .65rem .85rem; border: 1px solid var(--line); border-radius: 12px; background: var(--surface-elevated); color: var(--ink-soft); box-shadow: var(--shadow-sm); font-size: .74rem; line-height: 1.5; }
.voice-status:empty { display: none; }
@keyframes mobile-menu-enter { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }
.noscript-nav { display: none; }

.kicker { display: flex; align-items: center; gap: .7rem; margin-bottom: 1.25rem; color: var(--accent-text); font-size: .72rem; font-weight: 800; letter-spacing: .17em; text-transform: uppercase; }
.kicker span { width: 28px; height: 1px; background: currentColor; }
.kicker-light { color: #efc3aa; }
.hero { position: relative; min-height: 820px; padding: 132px 0 88px; background: radial-gradient(circle at 76% 24%, rgba(169,95,61,.12), transparent 31rem), linear-gradient(180deg, var(--white), var(--white) 66%, var(--surface-soft)); overflow: hidden; }
.hero::before { content: ""; position: absolute; width: 38rem; height: 38rem; right: -18rem; top: 6rem; border: 1px solid rgba(169,95,61,.08); border-radius: 50%; background: radial-gradient(circle, rgba(169,95,61,.09), transparent 67%); pointer-events: none; }
.hero-grid { display: grid; grid-template-columns: 1.06fr .94fr; align-items: center; gap: clamp(3.5rem, 7vw, 7.5rem); min-height: 600px; }
.hero-copy { position: relative; z-index: 2; }
.hero-copy::before { content: "JD"; position: absolute; z-index: -1; top: -.58em; left: -.14em; color: rgba(169,95,61,.045); font-family: Georgia, serif; font-size: clamp(10rem, 20vw, 19rem); font-weight: 700; line-height: 1; letter-spacing: -.13em; pointer-events: none; }
.hero h1 { max-width: 10.5em; margin-bottom: 1.7rem; font-family: var(--font-serif); font-size: clamp(3.25rem, 6vw, 5.8rem); font-weight: 700; line-height: 1.08; letter-spacing: -.065em; }
.hero h1 em { color: var(--copper); font-style: normal; }
.hero-lead { max-width: 39rem; margin-bottom: 2.1rem; padding-left: 1.15rem; border-left: 2px solid var(--copper); color: var(--muted); font-size: clamp(1rem, 1.4vw, 1.1rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: .8rem; min-height: 54px; padding: .85rem 1.5rem; border: 1px solid transparent; border-radius: 999px; font-size: .9rem; font-weight: 800; letter-spacing: -.01em; transition: transform .2s, background .2s, border-color .2s, color .2s, box-shadow .2s; }
.button span { font-size: 1.1em; transition: transform .2s; }
.button:hover { transform: translateY(-2px); }
.button:hover span { transform: translateX(3px); }
.button-primary { background: var(--solid-dark); color: var(--on-dark); box-shadow: 0 16px 38px rgba(0,0,0,.17); }
.button-primary:hover { background: var(--copper-dark); }
.button-ghost { border-color: var(--line); background: var(--surface); }
.button-ghost:hover { border-color: #b9a79e; color: var(--accent-text); }
.button-light { background: var(--button-light-bg); color: var(--button-light-text); }
.button-light:hover { background: var(--cream); }
.hero-values { display: flex; flex-wrap: wrap; gap: .6rem; padding: 0; margin: 2rem 0 0; list-style: none; color: var(--muted); font-size: .8rem; }
.hero-values li { display: inline-flex; min-height: 34px; align-items: center; padding: .3rem .7rem .3rem .35rem; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); }
.hero-values span { display: inline-grid; place-items: center; width: 20px; height: 20px; margin-right: .35rem; border-radius: 50%; background: var(--accent-soft); color: var(--success); font-size: .67rem; }
.hero-edition { display: flex; max-width: 35rem; align-items: center; gap: .8rem; margin-top: 1.4rem; color: var(--muted); font-size: .6rem; font-weight: 800; letter-spacing: .18em; }
.hero-edition i { flex: 1; height: 1px; background: linear-gradient(90deg, var(--line-strong), transparent); }
.hero-art { position: relative; min-height: 590px; display: grid; place-items: center; isolation: isolate; }
.hero-art::before { content: ""; position: absolute; z-index: -1; width: 72%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(169,95,61,.14), transparent 68%); filter: blur(8px); }
.hero-art::after { content: ""; position: absolute; z-index: -1; bottom: 11%; width: 68%; height: 9%; border-radius: 50%; background: rgba(22,32,51,.16); filter: blur(22px); transform: perspective(200px) rotateX(65deg); }
.orbit { position: absolute; border: 1px solid rgba(169,95,61,.24); border-radius: 50%; }
.orbit-one { width: 520px; height: 520px; }
.orbit-two { width: 390px; height: 390px; border-style: dashed; animation: slow-spin 45s linear infinite; }
@keyframes slow-spin { to { transform: rotate(360deg); } }
@keyframes free-badge-pulse {
  0%, 68%, 100% { opacity: 1; transform: translateX(0) scale(1); box-shadow: 0 0 0 0 rgba(169,95,61,0); filter: brightness(1); }
  17% { opacity: .88; transform: translateX(-2px) scale(1.025); }
  34% { opacity: .72; transform: translateX(2px) scale(1.055); box-shadow: 0 0 0 6px rgba(169,95,61,.12); filter: brightness(1.14); }
  51% { opacity: .9; transform: translateX(-1px) scale(1.02); }
}
@keyframes hero-book-drift {
  0%, 100% { translate: 0 0; }
  25% { translate: -8px -4px; }
  50% { translate: 8px -7px; }
  75% { translate: -5px -2px; }
}
.book-object { position: relative; width: min(340px, 70vw); height: auto; aspect-ratio: 2 / 3; margin: 0; transform: rotate(5deg); filter: drop-shadow(28px 36px 38px rgba(0,0,0,.38)); transition: transform .45s cubic-bezier(.2,.8,.2,1); animation: hero-book-drift 5.8s ease-in-out infinite; will-change: translate, transform; }
.book-object::after { content: ""; position: absolute; inset: 1px; border-radius: 5px 12px 12px 5px; background: linear-gradient(115deg, rgba(255,255,255,.18), transparent 28%, transparent 68%, rgba(255,255,255,.08)); mix-blend-mode: soft-light; pointer-events: none; }
.hero-art:hover .book-object { transform: rotate(4deg) translateY(-8px); }
.hero-book-cover { width: 100%; height: 100%; border: 1px solid rgba(255,255,255,.18); border-radius: 5px 12px 12px 5px; object-fit: cover; box-shadow: 0 30px 60px rgba(0,0,0,.32); }
.floating-card { position: absolute; z-index: 5; padding: 1rem 1.15rem; border: 1px solid var(--glass-line); border-radius: 16px; background: var(--glass); box-shadow: var(--shadow-card); backdrop-filter: blur(18px) saturate(135%); }
.floating-card span { color: var(--copper); font-size: .68rem; font-weight: 800; letter-spacing: .13em; }
.floating-card p, .floating-card strong { margin: .4rem 0 0; font-family: var(--font-serif); font-size: .95rem; line-height: 1.45; }
.floating-card-top { top: 8%; right: -3%; }
.floating-card-bottom { left: -4%; bottom: 11%; }
.hero-index { position: absolute; right: max(1.5rem, calc((100vw - 1320px) / 2)); bottom: 2rem; color: #a3a8b1; font-size: .65rem; letter-spacing: .22em; writing-mode: vertical-rl; }

.principle-bar { border-block: 1px solid var(--line); background: linear-gradient(90deg, var(--surface), var(--surface-soft), var(--surface)); }
.principle-track { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; color: var(--nav-text); font-family: var(--font-serif); font-size: .88rem; }
.principle-track i { width: 4px; height: 4px; border-radius: 50%; background: var(--copper); }

.section-heading { margin-bottom: clamp(3rem, 5vw, 4.25rem); }
.section-heading h2 { margin-bottom: 1.2rem; font-family: var(--font-serif); font-size: clamp(2.4rem, 5vw, 4.5rem); line-height: 1.14; letter-spacing: -.055em; }
.section-heading > p:last-child, .heading-copy p { color: var(--muted); }
.split-heading { display: grid; grid-template-columns: 1.1fr .7fr; align-items: end; gap: 4rem; }
.split-heading h2 { margin-bottom: 0; }
.heading-copy { max-width: 36rem; padding-bottom: .4rem; }
.heading-copy p { margin-bottom: 1.3rem; }
.centered { max-width: 790px; margin-inline: auto; text-align: center; }
.centered .kicker { justify-content: center; }
.text-link { display: inline-flex; min-height: 44px; align-items: center; gap: .55rem; padding: .55rem 0 .35rem; border-bottom: 1px solid currentColor; color: var(--ink); font-size: .88rem; font-weight: 800; transition: color .2s, gap .2s; }

.philosophy { background: radial-gradient(circle at 8% 12%, rgba(169,95,61,.055), transparent 22rem), var(--white); }
.principle-grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 1fr; gap: 1.15rem; }
.principle-card { position: relative; min-height: 330px; padding: 1.85rem; border: 1px solid var(--line); border-radius: var(--radius-md); background: linear-gradient(145deg, var(--surface-elevated), var(--surface-soft)); box-shadow: var(--shadow-card); transition: transform .25s, box-shadow .25s, border-color .25s; overflow: hidden; }
.principle-card::after { content: ""; position: absolute; inset: auto 1.7rem 0; height: 3px; border-radius: 3px 3px 0 0; background: var(--copper); opacity: 0; transform: scaleX(.3); transition: opacity .25s, transform .25s; }
.principle-card:hover { transform: translateY(-6px); border-color: #cbb4a7; box-shadow: var(--shadow-sm); }
.principle-card:hover::after, .principle-card:focus-within::after { opacity: 1; transform: scaleX(1); }
.principle-card.featured { background: linear-gradient(145deg, #1c2940, var(--solid-dark)); color: var(--on-dark); border-color: var(--solid-dark); box-shadow: var(--shadow-md); }
.card-number { color: #9298a3; font-size: .68rem; letter-spacing: .16em; }
.principle-icon { display: grid; place-items: center; width: 52px; height: 52px; margin: 2.5rem 0 3rem; border: 1px solid #ccb3a5; border-radius: 50%; color: var(--copper); font-size: 1.1rem; }
.featured .principle-icon { border-color: rgba(255,255,255,.25); color: #efb796; }
.principle-card h3 { font-family: var(--font-serif); font-size: 1.28rem; }
.principle-card p { margin: .8rem 0 0; color: var(--muted); font-size: .9rem; }
.featured p { color: #c5ccda; }

.themes { border-top: 1px solid var(--line); }
.theme-explorer { border: 1px solid var(--line-strong); border-radius: var(--radius-lg); background: var(--surface); overflow: hidden; box-shadow: var(--shadow-float), inset 0 1px rgba(255,255,255,.08); }
.tab-list { display: grid; grid-template-columns: repeat(4, 1fr); background: var(--subtle); border-bottom: 1px solid var(--line); }
.tab-list button { position: relative; min-height: 68px; border: 0; border-right: 1px solid var(--line); background: transparent; cursor: pointer; color: var(--muted); font-weight: 800; transition: background .2s, color .2s; }
.tab-list button:last-child { border-right: 0; }
.tab-list button::after { content: ""; position: absolute; inset: auto 20% -1px; height: 3px; background: var(--copper); transform: scaleX(0); transition: transform .25s; }
.tab-list button[aria-selected="true"] { background: var(--surface); color: var(--ink); }
.tab-list button[aria-selected="true"]::after { transform: scaleX(1); }
.tab-panels article { min-height: 390px; display: grid; grid-template-columns: .35fr 1fr .8fr; align-items: center; gap: 3rem; padding: clamp(2rem, 5vw, 5rem); }
.theme-index { align-self: start; color: #d4c3b8; font-family: var(--font-serif); font-size: 5rem; line-height: 1; }
.theme-label { margin-bottom: .8rem; color: var(--copper); font-size: .68rem; font-weight: 850; letter-spacing: .18em; }
.tab-panels h3 { margin-bottom: 1.1rem; font-family: var(--font-serif); font-size: clamp(2rem, 3.5vw, 3rem); line-height: 1.2; }
.tab-panels div > p:not(.theme-label) { color: var(--muted); }
.tab-panels div > a { display: inline-flex; gap: .6rem; margin-top: .7rem; font-size: .87rem; font-weight: 750; }
.tab-panels blockquote { margin: 0; padding: 2rem; border: 1px solid var(--line); border-left: 3px solid var(--copper); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; background: var(--subtle); color: var(--ink-soft); font-family: var(--font-serif); font-size: 1.08rem; }

.digital-service { border-top: 1px solid var(--line); background: radial-gradient(circle at 86% 18%, rgba(169,95,61,.08), transparent 28rem), linear-gradient(150deg, var(--surface-soft), var(--white)); }
.service-layout { display: block; }
.service-heading { margin-bottom: clamp(2.5rem, 5vw, 4.25rem); }
.service-heading h2 { max-width: 11em; }
.service-heading > p:last-child { max-width: 52rem; line-height: 1.85; }
.service-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: stretch; gap: clamp(1rem, 1.8vw, 1.5rem); }
.service-card { position: relative; display: flex; min-width: 0; height: 100%; flex-direction: column; padding: clamp(1.8rem, 3vw, 2.7rem); border: 1px solid var(--line-strong); border-radius: var(--radius-lg); overflow: hidden; background: linear-gradient(145deg, var(--surface-elevated), var(--surface-soft)); box-shadow: var(--shadow-float); isolation: isolate; }
.service-card::before { position: absolute; top: -9rem; right: -7rem; z-index: -1; width: 22rem; height: 22rem; border: 1px solid color-mix(in srgb, var(--copper) 24%, transparent); border-radius: 50%; box-shadow: inset 0 0 0 3.5rem color-mix(in srgb, var(--copper) 4%, transparent); content: ""; }
.service-card-top { display: flex; align-items: center; gap: .8rem; }
.service-mark { display: grid; width: 42px; height: 42px; border-radius: 50%; place-items: center; background: var(--solid-dark); color: var(--on-dark); font-family: var(--font-serif); font-size: 1.1rem; font-weight: 700; }
.service-label { margin: 0; color: var(--accent-text); font-size: .69rem; font-weight: 850; letter-spacing: .16em; text-transform: uppercase; }
.service-card h3 { margin: 1.5rem 0 1rem; font-family: var(--font-serif); font-size: clamp(2rem, 3vw, 3.25rem); line-height: 1.08; letter-spacing: -.055em; }
.service-card h3 span { display: block; margin-top: .45rem; color: var(--copper); font-family: var(--font-sans); font-size: .72rem; font-weight: 850; letter-spacing: .22em; }
.service-summary { max-width: 43rem; margin: 0; color: var(--muted); line-height: 1.85; }
.service-points { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); padding: 0; margin: 2rem 0; border-block: 1px solid var(--line); list-style: none; }
.service-points li { display: grid; min-height: 112px; grid-template-columns: auto 1fr; align-items: center; gap: .75rem; padding: 1rem; border-right: 1px solid var(--line); }
.service-points li:last-child { border-right: 0; }
.service-points strong { color: var(--copper); font-family: var(--font-serif); font-size: 1.35rem; font-weight: 500; }
.service-points span { color: var(--ink-soft); font-size: .84rem; font-weight: 750; line-height: 1.55; }
.service-actions { display: flex; align-items: center; gap: 1.25rem; margin-top: auto; }
.service-actions small { max-width: 15rem; color: var(--muted); font-size: .72rem; line-height: 1.55; }

@media (min-width: 1081px) and (min-height: 760px) {
  .digital-service { display: grid; min-height: calc(100svh - var(--header-height)); align-items: center; padding-block: clamp(3.5rem, 5.5vh, 5rem); }
  .service-heading { margin-bottom: clamp(1.75rem, 3vh, 2.5rem); }
  .service-heading h2 { margin-bottom: .8rem; font-size: clamp(2.5rem, 4vw, 3.8rem); }
  .service-card { padding: clamp(1.35rem, 1.7vw, 1.8rem); }
  .service-card h3 { margin: 1rem 0 .7rem; font-size: clamp(1.75rem, 2.25vw, 2.45rem); }
  .service-summary { font-size: .92rem; line-height: 1.7; }
  .service-points { margin: 1.25rem 0; }
  .service-points li { min-height: 86px; padding: .75rem; }
  .service-actions { gap: .85rem; }
}

.books { border-top: 1px solid var(--line); background: radial-gradient(circle at 92% 8%, rgba(169,95,61,.055), transparent 24rem), var(--white); }
.book-catalog-intro { display: flex; align-items: end; justify-content: space-between; gap: 2rem; padding: 1.4rem 0 1.5rem; border-bottom: 1px solid var(--line); }
.book-catalog-intro p { max-width: 42rem; margin: 0; color: var(--muted); }
.book-catalog-intro span, .book-series { color: var(--copper); font-size: .68rem; font-weight: 850; letter-spacing: .13em; }
.catalog-meta { display: flex; flex: 0 0 auto; align-items: center; gap: .8rem; }
.catalog-meta strong { color: var(--ink); font-family: var(--font-serif); font-size: 2rem; font-weight: 500; line-height: 1; }
.catalog-meta span { max-width: 15rem; line-height: 1.5; }
.book-catalog { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); grid-auto-rows: 1fr; gap: 1.35rem; padding: 1.5rem 0 0; margin: 0; list-style: none; counter-reset: catalog; }
.book-card { position: relative; display: grid; min-height: 248px; grid-template-columns: 132px minmax(0, 1fr); grid-template-rows: minmax(0, 1fr) auto; grid-template-areas: "cover copy" "cover stores"; column-gap: 1.4rem; row-gap: 1rem; padding: 1.25rem; border: 1px solid var(--line); border-radius: var(--radius-md); background: linear-gradient(145deg, var(--surface-elevated), var(--surface-soft)); box-shadow: var(--shadow-card); transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; overflow: hidden; }
.book-card::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 3px; background: var(--copper); opacity: .7; }
.book-card::after { content: ""; position: absolute; inset: 0 0 auto; height: 38%; background: linear-gradient(125deg, rgba(255,255,255,.12), transparent 42%); pointer-events: none; }
.book-card:hover { transform: translateY(-4px); border-color: #c9b3a6; box-shadow: var(--shadow-sm); }
.book-card:focus-within { border-color: var(--copper); box-shadow: var(--shadow-sm); }
.book-card > img { grid-area: cover; width: 132px; height: 198px; object-fit: contain; object-position: top center; border-radius: 4px 10px 10px 4px; background: var(--surface); box-shadow: 10px 14px 24px rgba(21,30,45,.18); transition: transform .3s ease, box-shadow .3s ease; }
.book-card-copy { grid-area: copy; min-width: 0; display: flex; align-self: stretch; flex-direction: column; padding-block: .1rem; overflow-wrap: anywhere; }
.book-card-copy h3 { margin: .55rem 0 .7rem; font-family: var(--font-serif); font-size: clamp(1.25rem, 2vw, 1.55rem); line-height: 1.25; }
.book-card-copy > p:not(.book-series):not(.book-free-note) { margin: 0; color: var(--muted); font-size: .88rem; line-height: 1.65; }
.book-card-copy > .book-free-note { display: inline-flex; width: fit-content; min-height: 32px; align-items: center; gap: .55rem; margin-top: .85rem; padding: .3rem .72rem .3rem .34rem; border: 1px solid var(--line); border-radius: 999px; background: linear-gradient(135deg, var(--accent-soft), var(--surface)); color: var(--ink); box-shadow: 0 7px 18px rgba(22,32,51,.07); line-height: 1.2; transform-origin: center; animation: free-badge-pulse 2.6s ease-in-out infinite; will-change: transform, opacity, filter; }
.book-free-note span { display: inline-grid; min-width: 38px; min-height: 23px; place-items: center; padding-inline: .45rem; border-radius: 999px; background: var(--copper); color: var(--on-accent); font-size: .66rem; font-weight: 900; letter-spacing: .08em; }
.book-free-note strong { color: var(--ink-soft); font-size: .72rem; font-weight: 800; letter-spacing: -.01em; }
.book-card-copy small { display: block; margin-top: auto; padding-top: .85rem; color: var(--ink-soft); font-size: .7rem; letter-spacing: .04em; }
.store-links { grid-area: stores; display: grid; width: 100%; min-height: 46px; align-self: end; grid-template-columns: repeat(4, minmax(0, 1fr)); overflow: hidden; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--subtle); box-shadow: inset 0 1px rgba(255,255,255,.08); }
.store-links a { display: grid; min-height: 46px; place-items: center; padding: .45rem .2rem; border-right: 1px solid var(--line); color: var(--ink-soft); font-size: .71rem; font-weight: 750; text-align: center; transition: background .2s ease, color .2s ease; }
.store-links a:last-child { border-right: 0; }
.store-links a:hover, .store-links a:focus-visible { background: var(--solid-dark); color: var(--on-dark); outline: 0; }

.process { border-top: 1px solid var(--line); }
.process-list { max-width: 1000px; padding: 0; margin: 0 auto; border: 1px solid var(--line-strong); border-radius: var(--radius-lg); background: linear-gradient(145deg, var(--surface-elevated), var(--surface-soft)); box-shadow: var(--shadow-card); list-style: none; counter-reset: process; overflow: hidden; }
.process-list li { position: relative; display: grid; grid-template-columns: 120px 1fr; gap: 2rem; padding: 2.2rem 2.4rem; border-top: 1px solid var(--line); transition: background .22s, transform .22s; }
.process-list li:first-child { border-top: 0; }
.process-list li:last-child { border-bottom: 0; }
.process-list .step { display: inline-grid; width: 46px; height: 46px; place-items: center; border: 1px solid rgba(169,95,61,.35); border-radius: 50%; background: var(--accent-soft); color: var(--copper); font-family: var(--font-serif); font-size: .9rem; box-shadow: inset 0 1px rgba(255,255,255,.16); }
.process-list h3 { margin-bottom: .5rem; font-family: var(--font-serif); font-size: 1.35rem; }
.process-list p { max-width: 650px; margin: 0; color: var(--muted); }

.quality { padding-top: 2rem; }
.quality-stage { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 6rem); align-items: center; padding: clamp(2.2rem, 6vw, 5.5rem); border: 1px solid rgba(255,255,255,.11); border-radius: var(--radius-lg); background: radial-gradient(circle at 85% 10%, rgba(169,95,61,.32), transparent 22rem), linear-gradient(145deg, #1d2a40, #101827); color: var(--on-dark); box-shadow: var(--shadow-float); overflow: hidden; }
.quality-copy h2 { margin-bottom: 1.4rem; font-family: var(--font-serif); font-size: clamp(2.4rem, 5vw, 4.4rem); line-height: 1.15; }
.quality-copy > p:not(.kicker) { margin-bottom: 2rem; color: #c3cad8; }
.quality-board { border: 1px solid var(--line-dark); border-radius: var(--radius-md); background: rgba(255,255,255,.06); overflow: hidden; }
.board-head { display: flex; justify-content: space-between; gap: 1rem; padding: 1rem 1.2rem; border-bottom: 1px solid var(--line-dark); color: #9fa9ba; font-size: .62rem; font-weight: 800; letter-spacing: .13em; }
.quality-board ul { padding: 0; margin: 0; list-style: none; }
.quality-board li { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: .8rem; padding: 1.05rem 1.2rem; border-bottom: 1px solid var(--line-dark); }
.quality-board li:last-child { border-bottom: 0; }
.quality-board strong { font-size: .88rem; }
.quality-board small { color: #9fa9ba; font-size: .72rem; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #83b294; box-shadow: 0 0 0 4px rgba(131,178,148,.12); }

.journal { border-top: 1px solid var(--line); background: linear-gradient(180deg, var(--white), var(--surface-soft)); }
.journal-grid { display: grid; grid-template-columns: repeat(3, 1fr); grid-auto-rows: 1fr; gap: 1.3rem; }
.journal-card a { display: flex; height: 100%; flex-direction: column; padding: 1rem; border: 1px solid var(--line); border-radius: calc(var(--radius-md) + 6px); background: linear-gradient(145deg, var(--surface-elevated), var(--surface)); box-shadow: var(--shadow-card); transition: border-color .25s, box-shadow .25s, transform .25s; }
.journal-art { position: relative; height: 250px; margin-bottom: 1.35rem; border-radius: var(--radius-md); overflow: hidden; transition: transform .3s; }
.journal-card:hover .journal-art { transform: translateY(-5px); }
.journal-art span { position: absolute; left: 1.2rem; top: 1rem; color: rgba(255,255,255,.75); font-family: var(--font-serif); }
.journal-art i { position: absolute; border: 1px solid rgba(255,255,255,.42); }
.art-one { background: #99563a; }
.art-one i { width: 170px; height: 170px; right: -25px; bottom: -30px; border-radius: 50%; }
.art-one::after { content: ""; position: absolute; left: 15%; right: 15%; top: 50%; height: 1px; background: rgba(255,255,255,.42); transform: rotate(-18deg); }
.art-two { background: #1d2940; }
.art-two i { width: 115px; height: 155px; right: 18%; top: 20%; transform: rotate(12deg); box-shadow: 14px 14px 0 rgba(255,255,255,.08); }
.art-three { background: #6d786e; }
.art-three i { width: 140px; height: 140px; right: 15%; top: 22%; border-radius: 50% 50% 7px 50%; transform: rotate(45deg); }
.journal-meta { margin-bottom: .65rem; color: var(--copper); font-size: .7rem; font-weight: 800; letter-spacing: .08em; }
.journal-card h3 { min-height: 3.2em; margin-bottom: 1rem; font-family: var(--font-serif); font-size: 1.28rem; line-height: 1.45; }
.read-more { margin-top: auto; color: var(--muted); font-size: .82rem; font-weight: 800; }

.faq { border-top: 1px solid var(--line); }
.faq-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(3rem, 8vw, 8rem); }
.faq-list { border: 1px solid var(--line-strong); border-radius: var(--radius-md); background: var(--surface); box-shadow: var(--shadow-card); overflow: hidden; }
.faq-list details { padding-inline: 1.3rem; border-bottom: 1px solid var(--line); transition: background .2s, padding-inline .2s; }
.faq-list details:last-child { border-bottom: 0; }
.faq-list details[open] { padding-inline: 1.55rem; background: var(--surface-soft); }
.faq-list summary { display: flex; min-height: 64px; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.1rem 0; cursor: pointer; font-family: var(--font-serif); font-size: 1.06rem; font-weight: 700; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary i { display: grid; place-items: center; width: 30px; height: 30px; border: 1px solid var(--line); border-radius: 50%; font-family: var(--font-sans); font-style: normal; transition: transform .2s, background .2s; }
.faq-list details[open] summary i { transform: rotate(45deg); background: var(--warm); }
.faq-list details p { padding: 0 3.4rem 1.5rem 0; color: var(--muted); }

.contact { padding-top: 2rem; }
.contact-card { position: relative; display: grid; grid-template-columns: 1fr .7fr; align-items: center; gap: 3rem; padding: clamp(2.2rem, 6vw, 5rem); border: 1px solid rgba(255,255,255,.16); border-radius: var(--radius-lg); background: radial-gradient(circle at 12% 15%, rgba(255,255,255,.13), transparent 19rem), linear-gradient(135deg, #743a25, var(--copper-dark)); color: #fff; box-shadow: var(--shadow-float); overflow: hidden; }
.contact-card h2 { margin-bottom: 1rem; font-family: var(--font-serif); font-size: clamp(2.4rem, 5vw, 4rem); line-height: 1.2; }
.contact-card > div > p:last-child { color: #ead4c9; }
.contact-actions { display: grid; gap: .8rem; }
.copy-email { display: flex; min-height: 56px; align-items: center; justify-content: space-between; gap: 1rem; padding: .85rem 1.2rem; border: 1px solid rgba(255,255,255,.32); border-radius: 14px; background: rgba(255,255,255,.09); color: #fff; box-shadow: inset 0 1px rgba(255,255,255,.08); cursor: pointer; overflow-wrap: anywhere; transition: background .2s, border-color .2s; }
.copy-email small { color: #ebcbbb; }
.copy-status { min-height: 1.4em; margin: 0; color: #f3d4c4; font-size: .75rem; }

.site-footer { position: relative; margin-top: 8rem; padding-top: 4rem; border-top: 1px solid var(--line); background: linear-gradient(180deg, var(--white), var(--subtle)); }
.site-footer::before { content: ""; position: absolute; inset: -1px auto auto 0; width: min(34vw, 420px); height: 2px; background: linear-gradient(90deg, var(--copper), transparent); }
.footer-top { display: flex; justify-content: space-between; gap: 4rem; padding-bottom: 4rem; }
.footer-brand { align-self: flex-start; }
.footer-brand .brand-logo-wide { width: 88px; border-radius: 10px; }
.footer-brand > span:last-child { display: grid; }
.footer-brand strong { font-family: var(--font-serif); font-size: 1.15rem; }
.footer-brand small { margin-top: .35rem; color: var(--muted); }
.footer-links { display: grid; grid-template-columns: repeat(2, minmax(140px, 1fr)); gap: 4rem; }
.footer-links div { display: grid; gap: .65rem; }
.footer-links strong { margin-bottom: .4rem; font-size: .78rem; }
.footer-links a { display: flex; min-height: 44px; align-items: center; color: var(--muted); font-size: .82rem; }
.footer-links a:hover { color: var(--accent-text); }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; padding: 1.25rem 0; border-top: 1px solid var(--line); color: #8b919c; font-size: .72rem; }
.footer-bottom p { margin: 0; }
.back-to-top { position: fixed; right: 1.4rem; bottom: 1.4rem; z-index: 50; display: grid; place-items: center; width: 48px; height: 48px; border: 1px solid var(--line); border-radius: 50%; background: var(--header-bg-solid); color: var(--ink); box-shadow: var(--shadow-sm); backdrop-filter: blur(12px); cursor: pointer; opacity: 0; visibility: hidden; transform: translateY(10px); transition: opacity .2s, visibility .2s, transform .2s, border-color .2s; }
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }

.error-page { min-height: 100vh; display: grid; place-items: center; padding: 2rem; }
.error-card { width: min(620px, 100%); padding: clamp(2rem, 7vw, 5rem); border: 1px solid var(--line); border-radius: 32px; text-align: center; }
.error-code { color: var(--copper); font: 700 5rem/1 Georgia, serif; }
.error-card h1 { margin: 1rem 0; font-family: var(--font-serif); font-size: clamp(1.8rem, 5vw, 3rem); }
.error-card p { color: var(--muted); }
.error-card a { display: inline-flex; margin-top: 1rem; padding: .8rem 1.3rem; border-radius: 999px; background: var(--solid-dark); color: var(--on-dark); font-weight: 700; }

.js [data-reveal] { opacity: 0; transform: translateY(22px) scale(.995); transition: opacity .72s ease, transform .72s cubic-bezier(.2,.75,.25,1); transition-delay: var(--reveal-delay, 0ms); }
.js [data-reveal].is-visible { opacity: 1; transform: translateY(0) scale(1); }
.principle-card:nth-child(2), .book-card:nth-child(even), .journal-card:nth-child(2) { --reveal-delay: 70ms; }
.principle-card:nth-child(3), .journal-card:nth-child(3) { --reveal-delay: 140ms; }
.principle-card:nth-child(4) { --reveal-delay: 210ms; }

@media (max-width: 1080px) {
  .desktop-nav { display: none; }
  .js .menu-button { display: block; }
  .site-header.is-scrolled .nav-shell { min-height: var(--header-height); }
  .site-header.is-scrolled .brand-logo-header { width: 68px; }
  .noscript-nav { display: flex; width: calc(100% - 2rem); margin: 0 auto .8rem; gap: .8rem; overflow-x: auto; white-space: nowrap; font-size: .78rem; }
  .hero-grid { gap: 2rem; }
  .principle-grid { grid-template-columns: repeat(2, 1fr); }
  .service-cards { grid-template-columns: 1fr; }
  .service-heading h2 { max-width: none; }
  .voice-button-label { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
  .voice-button { width: 44px; padding: 0; }
  .tab-panels article { grid-template-columns: .25fr 1fr; }
  .tab-panels blockquote { grid-column: 2; }
  .book-catalog { grid-template-columns: 1fr; grid-auto-rows: auto; }
}

@media (max-width: 820px) {
  .container { width: min(var(--container), calc(100% - 2rem)); }
  .nav-shell { width: calc(100% - 2rem); }
  .nav-cta, .text-size-button { display: none; }
  .language-control select { width: 88px; }
  .hero { min-height: auto; padding-top: 125px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { text-align: center; }
  .hero-copy .kicker, .hero-actions, .hero-values { justify-content: center; }
  .hero-edition { margin-inline: auto; }
  .hero-lead { margin-inline: auto; padding-left: 0; border-left: 0; }
  .hero h1 { font-size: clamp(3rem, 12vw, 5rem); }
  .hero-art { min-height: 590px; }
  .floating-card-top { right: 3%; }
  .floating-card-bottom { left: 3%; }
  .principle-track { overflow-x: auto; justify-content: flex-start; padding-inline: 1rem; white-space: nowrap; scroll-snap-type: x proximity; overscroll-behavior-x: contain; scrollbar-width: none; }
  .principle-track span { padding-inline: .5rem; scroll-snap-align: start; }
  .split-heading { grid-template-columns: 1fr; gap: 1.5rem; }
  .book-catalog-intro { align-items: flex-start; flex-direction: column; gap: .75rem; }
  .catalog-meta { width: 100%; justify-content: space-between; padding-top: .9rem; border-top: 1px solid var(--line); }
  .quality-stage, .contact-card, .faq-layout { grid-template-columns: 1fr; }
  .journal-grid { grid-template-columns: 1fr; }
  .journal-card h3 { min-height: auto; }
  .journal-art { height: 220px; }
  .footer-top { flex-direction: column; }
  .service-actions { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 600px) {
  .container { width: min(var(--container), calc(100% - 1.5rem)); }
  .section { padding: 4.75rem 0; }
  html { scroll-padding-top: calc(var(--header-height-mobile) + 14px); }
  .nav-shell, .site-header.is-scrolled .nav-shell { width: calc(100% - .75rem); min-height: var(--header-height-mobile); gap: .25rem; }
  .mobile-menu { height: calc(100dvh - var(--header-height-mobile) - env(safe-area-inset-top)); padding-inline: 1rem; }
  .brand { min-width: 0; gap: .35rem; }
  .brand-logo-header, .site-header.is-scrolled .brand-logo-header { width: 42px; max-height: 38px; }
  .brand-copy strong { font-size: .86rem; }
  .brand-copy small { display: none; }
  .nav-tools { flex: 0 0 auto; gap: .25rem; }
  .language-control select { width: 68px; height: 40px; padding: 0 1.3rem 0 .48rem; font-size: .68rem; }
  .voice-button, .theme-button, .menu-button { width: 40px; min-width: 40px; height: 40px; }
  .hero { padding: calc(96px + env(safe-area-inset-top)) 0 4rem; }
  .hero-copy::before { display: none; }
  .hero h1 br { display: none; }
  .hero h1 { margin-bottom: 1.35rem; font-size: clamp(2.55rem, 12vw, 3.65rem); line-height: 1.12; letter-spacing: -.055em; }
  .hero-lead { max-width: 35rem; margin-inline: auto; margin-bottom: 1.7rem; font-size: .97rem; line-height: 1.78; }
  .hero-actions .button { width: 100%; }
  .hero-values { width: fit-content; align-items: flex-start; flex-direction: column; margin: 1.6rem auto 0; text-align: left; }
  .hero-edition { justify-content: center; font-size: .56rem; }
  .hero-art { min-height: 440px; }
  .orbit-one { width: 340px; height: 340px; }
  .orbit-two { width: 265px; height: 265px; }
  .book-object { width: 220px; height: auto; }
  .floating-card { max-width: 150px; padding: .7rem .8rem; }
  .floating-card-top { top: 2%; right: 0; }
  .floating-card-bottom { left: 0; bottom: 5%; }
  .floating-card-bottom strong { display: block; }
  .section-heading { margin-bottom: 2.6rem; }
  .section-heading h2 { font-size: clamp(2.1rem, 10.5vw, 3.15rem); }
  .principle-grid { grid-template-columns: 1fr; }
  .principle-card { min-height: 250px; padding: 1.4rem; }
  .principle-icon { margin: 1.5rem 0 1.7rem; }
  .tab-list { grid-template-columns: repeat(2, 1fr); }
  .tab-list button { min-height: 60px; padding-inline: .4rem; }
  .tab-list button:nth-child(2) { border-right: 0; }
  .tab-list button:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .tab-panels article { min-height: 0; grid-template-columns: 1fr; gap: 1.4rem; padding: 2rem 1rem; }
  .theme-index { font-size: 3.5rem; }
  .tab-panels blockquote { grid-column: 1; }
  .service-card { padding: 1.5rem 1.1rem; border-radius: 26px; }
  .digital-service { padding-block: 3.75rem; }
  .service-heading { margin-bottom: 1.8rem; }
  .service-heading h2 { margin-bottom: .9rem; }
  .service-heading > p:last-child { line-height: 1.72; }
  .service-cards { gap: 1rem; }
  .service-card h3 { margin: 1.1rem 0 .75rem; font-size: clamp(1.8rem, 9vw, 2.35rem); }
  .service-summary { font-size: .9rem; line-height: 1.7; }
  .service-points { grid-template-columns: 1fr; }
  .service-points { margin: 1.25rem 0; }
  .service-points li { min-height: 68px; padding: .7rem .8rem; border-right: 0; border-bottom: 1px solid var(--line); }
  .service-points li:last-child { border-bottom: 0; }
  .service-actions .button { width: 100%; }
  .book-catalog-intro { padding-top: .8rem; }
  .book-card { min-height: 0; grid-template-columns: 96px minmax(0, 1fr); grid-template-areas: "cover copy" "stores stores"; column-gap: .9rem; row-gap: .9rem; padding: .85rem; }
  .book-card > img { width: 96px; height: 144px; }
  .book-card-copy h3 { font-size: 1.2rem; }
  .book-card-copy > p:not(.book-series):not(.book-free-note) { font-size: .82rem; }
  .store-links { grid-column: 1 / -1; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .store-links a:nth-child(2) { border-right: 0; }
  .store-links a:nth-child(-n + 2) { border-bottom: 1px solid var(--line); }
  .process-list { border-radius: 24px; }
  .process-list li { grid-template-columns: 44px 1fr; gap: .85rem; padding: 1.5rem 1rem; }
  .quality-stage, .contact-card { padding: 2rem 1.2rem; border-radius: 26px; }
  .quality-copy .button { width: 100%; }
  .quality-board li { grid-template-columns: auto 1fr; }
  .quality-board small { grid-column: 2; }
  .faq-list details p { padding-right: 0; }
  .contact-card h2 { font-size: clamp(2.15rem, 10.5vw, 3rem); }
  .footer-links { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; }
  .back-to-top { right: max(.85rem, env(safe-area-inset-right)); bottom: max(.85rem, env(safe-area-inset-bottom)); }
}

@media (max-width: 380px) {
  .brand-logo-header, .site-header.is-scrolled .brand-logo-header { width: 36px; }
  .brand-copy { display: none; }
  .language-control select { width: 58px; padding-left: .38rem; font-size: .64rem; text-overflow: ellipsis; }
  .voice-button, .theme-button, .menu-button { width: 38px; min-width: 38px; height: 38px; }
  .hero h1 { font-size: 2.35rem; }
  .hero-art { min-height: 405px; }
  .orbit-one { width: 305px; height: 305px; }
  .orbit-two { width: 235px; height: 235px; }
  .book-object { width: 205px; height: auto; }
  .floating-card { max-width: 135px; font-size: .78rem; }
  .service-card { padding: 1.25rem .9rem; }
  .service-points span, .service-actions .button { overflow-wrap: anywhere; }
  .book-card { grid-template-columns: 84px minmax(0, 1fr); }
  .book-card > img { width: 84px; height: 126px; }
  .book-card-copy h3 { font-size: 1.1rem; }
  .book-series { letter-spacing: .08em; }
  .copy-email { align-items: flex-start; flex-direction: column; }
  .footer-brand .brand-logo-wide { width: 76px; }
}

@media (hover: hover) and (pointer: fine) {
  .language-control select:hover, .voice-button:hover, .theme-button:hover, .text-size-button:hover, .menu-button:hover { border-color: var(--copper); background: var(--accent-soft); transform: translateY(-1px); }
  .nav-cta:hover { box-shadow: 0 14px 30px rgba(22,32,51,.2); }
  .text-link:hover { gap: .8rem; color: var(--accent-text); }
  .book-card:hover > img { transform: translateY(-2px) rotate(-.5deg); box-shadow: 12px 18px 28px rgba(21,30,45,.22); }
  .process-list li:hover { background: var(--subtle); transform: translateX(4px); }
  .journal-card a:hover { border-color: #c9b3a6; box-shadow: var(--shadow-sm); transform: translateY(-4px); }
  .copy-email:hover { border-color: rgba(255,255,255,.55); background: rgba(255,255,255,.14); }
  .back-to-top:hover { border-color: var(--copper); }
}

@media (hover: none) {
  .principle-card:hover, .book-card:hover, .journal-card:hover .journal-art, .button:hover, .nav-cta:hover { transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .js [data-reveal] { opacity: 1; transform: none; }
}

@media (prefers-contrast: more) {
  :root { --line: #9da3aa; --line-strong: #717984; }
  :root[data-theme="dark"] { --line: #7f8998; --line-strong: #a5afbd; }
  .button, .store-links, .principle-card, .book-card, .faq-list, .process-list { box-shadow: none; }
  :focus-visible { outline-width: 4px; }
}