:root {
  color-scheme: dark;
  --night: #070707;
  --night-2: #10110e;
  --bone: #f4f4ee;
  --lime: #b8ff00;
  --lime-soft: #d8ff73;
  --muted: #9b9c92;
  --line: rgba(244, 244, 238, .16);
  --content: 1240px;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "PingFang TC", "Hiragino Sans", "Yu Gothic", "Noto Sans KR", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--night); }
body { margin: 0; min-width: 320px; background: var(--night); color: var(--bone); }
button, input, select { font: inherit; }
a { color: inherit; }
img { display: block; max-width: 100%; height: auto; }
::selection { background: var(--lime); color: var(--night); }
:focus-visible { outline: 3px solid var(--lime); outline-offset: 4px; }
.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.site-header { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 24px; min-height: 76px; padding: 12px max(24px, calc((100vw - var(--content)) / 2)); border-bottom: 1px solid var(--line); background: rgba(7, 7, 7, .84); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); }
.brand, .footer-brand { display: inline-flex; align-items: center; gap: 11px; color: var(--bone); text-decoration: none; font-size: 20px; font-weight: 820; letter-spacing: -.02em; white-space: nowrap; }
.brand img, .footer-brand img { width: 40px; height: 40px; border-radius: 11px; }
.site-navigation { display: flex; align-items: center; gap: 28px; margin: 0 auto; }
.site-navigation a { color: #c6c7bd; text-decoration: none; font-size: 14px; transition: color .18s ease; }
.site-navigation a:hover { color: var(--lime); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.language-select select { min-height: 42px; padding: 0 32px 0 12px; border: 1px solid var(--line); border-radius: 0; background: var(--night-2); color: var(--bone); cursor: pointer; }
.header-cta, .primary-button { display: inline-flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 48px; padding: 0 20px; border: 1px solid var(--lime); background: var(--lime); color: var(--night); font-weight: 780; text-decoration: none; transition: background .18s ease, transform .18s ease; }
.header-cta:hover, .primary-button:hover { background: var(--lime-soft); transform: translateY(-2px); }
.menu-button { display: none; width: 44px; height: 44px; padding: 11px; border: 1px solid var(--line); background: transparent; }
.menu-button > span:not(.sr-only) { display: block; height: 1px; margin: 5px 0; background: var(--bone); }

.marketing-hero { display: grid; grid-template-columns: minmax(0, .9fr) minmax(500px, 1.1fr); align-items: center; gap: clamp(36px, 6vw, 92px); width: min(calc(100% - 48px), var(--content)); min-height: calc(100svh - 76px); margin: 0 auto; padding: 74px 0 64px; overflow: hidden; }
.section-kicker { margin: 0 0 20px; color: var(--lime); font: 760 12px/1.4 ui-monospace, "SFMono-Regular", Menlo, monospace; letter-spacing: .13em; text-transform: uppercase; }
.hero-copy { position: relative; z-index: 2; }
.hero-copy h1 { max-width: 650px; margin: 0; font-size: clamp(58px, 7vw, 104px); font-weight: 920; line-height: .93; letter-spacing: -.068em; text-wrap: balance; }
.hero-copy h2 { margin: 30px 0 0; color: var(--lime); font-size: clamp(24px, 2.6vw, 39px); line-height: 1.12; letter-spacing: -.035em; }
.hero-body { max-width: 580px; margin: 24px 0 0; color: #b9bab0; font-size: clamp(16px, 1.4vw, 19px); line-height: 1.75; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 22px; margin-top: 38px; }
.hero-actions .primary-button { min-width: 238px; min-height: 58px; }
.text-button { padding: 10px 0; border-bottom: 1px solid #595a52; color: var(--bone); font-size: 14px; text-decoration: none; }
.text-button:hover { border-color: var(--lime); color: var(--lime); }

.hero-visual { position: relative; min-height: 690px; border: 1px solid var(--line); background: #11120f; isolation: isolate; }
.visual-grid { position: absolute; inset: 0; z-index: -2; opacity: .35; background-image: linear-gradient(rgba(255,255,255,.11) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.11) 1px, transparent 1px); background-size: 52px 52px; mask-image: linear-gradient(to bottom, #000 40%, transparent 100%); }
.hero-visual::after { content: ""; position: absolute; inset: 10% 15%; z-index: -1; background: radial-gradient(circle, rgba(184,255,0,.22), rgba(98,82,255,.13) 42%, transparent 70%); filter: blur(20px); }
.phone-stack { position: absolute; inset: 60px 12% 0; }
.phone { position: absolute; bottom: -76px; width: 43%; border: 1px solid rgba(255,255,255,.28); box-shadow: 0 28px 70px rgba(0,0,0,.58); }
.phone-main { z-index: 3; left: 28.5%; width: 48%; transform: rotate(-1.5deg); }
.phone-left { z-index: 1; left: -6%; transform: rotate(-9deg) translateY(60px); filter: saturate(.72) brightness(.72); }
.phone-right { z-index: 2; right: -5%; transform: rotate(8deg) translateY(86px); filter: saturate(.72) brightness(.72); }
.prompt-chip { position: absolute; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 16px; min-width: 165px; padding: 13px 14px; border: 1px solid rgba(255,255,255,.24); background: rgba(8,8,8,.9); box-shadow: 0 12px 36px rgba(0,0,0,.34); color: var(--bone); font-size: 13px; backdrop-filter: blur(10px); }
.prompt-chip b { display: grid; place-items: center; width: 23px; height: 23px; background: var(--lime); color: var(--night); font-size: 18px; line-height: 1; }
.chip-1 { top: 9%; left: -6%; }
.chip-2 { top: 30%; right: -5%; }
.chip-3 { bottom: 23%; left: -9%; }
.chip-4 { bottom: 7%; right: -3%; }
.hero-stamp { position: absolute; top: 18px; right: 18px; color: #6d6f63; font: 700 10px ui-monospace, monospace; letter-spacing: .16em; writing-mode: vertical-rl; }

.trust-rail { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.trust-rail > span { display: flex; align-items: center; gap: 14px; min-height: 84px; padding: 18px clamp(18px, 3vw, 46px); border-right: 1px solid var(--line); color: #d5d6cc; font-size: 14px; }
.trust-rail > span:last-child { border-right: 0; }
.trust-rail b { color: var(--lime); font: 720 11px ui-monospace, monospace; }

.showcase-section { background: var(--bone); color: var(--night); }
.showcase-section .section-shell { padding-top: clamp(86px, 9vw, 130px); padding-bottom: clamp(86px, 9vw, 130px); }
.showcase-heading { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(260px, .75fr); align-items: end; gap: 42px; margin-bottom: 48px; }
.showcase-heading .section-kicker { grid-column: 1 / -1; margin-bottom: -6px; color: #577700; }
.showcase-heading h2 { max-width: 900px; margin: 0; font-size: clamp(46px, 6.2vw, 84px); font-weight: 920; line-height: .96; letter-spacing: -.064em; text-wrap: balance; }
.showcase-heading > p:last-child { max-width: 460px; margin: 0; color: #61625a; font-size: 16px; line-height: 1.7; }
.effect-story-list { display: grid; gap: clamp(18px, 3vw, 34px); }
.effect-story { position: relative; display: grid; grid-template-columns: minmax(470px, 1.16fr) minmax(320px, .84fr); min-height: 680px; overflow: hidden; background: var(--night); color: var(--bone); isolation: isolate; }
.effect-story::after { position: absolute; right: 24px; bottom: -28px; z-index: -1; color: rgba(244,244,238,.035); font: 900 clamp(110px, 18vw, 250px)/.8 ui-monospace, monospace; letter-spacing: -.12em; content: "RESULT"; pointer-events: none; }
.effect-story.is-reversed { grid-template-columns: minmax(320px, .84fr) minmax(470px, 1.16fr); }
.effect-story.is-reversed .comparison { order: 2; }
.effect-story.is-reversed .expansion-visual { order: 2; }
.effect-story.is-reversed .effect-story-copy { order: 1; }
.comparison { --compare: 52%; position: relative; min-height: 680px; overflow: hidden; background: #191a17; cursor: ew-resize; user-select: none; touch-action: pan-y; }
.comparison > img, .comparison-before, .comparison-before img { position: absolute; inset: 0; width: 100%; height: 100%; }
.comparison > img, .comparison-before img { object-fit: cover; object-position: center; }
.comparison-bag > img, .comparison-bag .comparison-before img, .comparison-bust > img, .comparison-bust .comparison-before img { object-position: center top; }
.comparison-before { z-index: 2; overflow: hidden; clip-path: inset(0 calc(100% - var(--compare)) 0 0); }
.comparison-before img { max-width: none; }
.comparison-label { position: absolute; top: 18px; z-index: 5; padding: 9px 11px; background: rgba(7, 7, 7, .82); color: var(--bone); font: 760 11px ui-monospace, monospace; letter-spacing: .06em; }
.before-label { left: 18px; }
.after-label { right: 18px; }
.comparison-line { position: absolute; top: 0; bottom: 0; left: var(--compare); z-index: 6; width: 2px; background: var(--lime); transform: translateX(-1px); pointer-events: none; }
.comparison-line b { position: absolute; top: 50%; left: 50%; display: grid; place-items: center; width: 54px; height: 54px; border: 2px solid var(--night); border-radius: 50%; background: var(--lime); color: var(--night); font-size: 22px; transform: translate(-50%, -50%); box-shadow: 0 8px 24px rgba(0,0,0,.3); }
.comparison-range { position: absolute; inset: 0; z-index: 7; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: ew-resize; }
.comparison-help { position: absolute; right: 18px; bottom: 18px; z-index: 5; padding: 10px 12px; background: rgba(7,7,7,.82); color: #d2d3ca; font-size: 11px; }
.effect-story-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(34px, 5vw, 72px); }
.effect-index { color: var(--lime); font: 740 10px ui-monospace, monospace; letter-spacing: .13em; text-transform: uppercase; }
.effect-story-copy h3 { max-width: 520px; margin: 30px 0 36px; font-size: clamp(38px, 4.5vw, 62px); line-height: .98; letter-spacing: -.05em; text-wrap: balance; }
.reference-input { display: grid; grid-template-columns: 70px minmax(0, 1fr); align-items: center; gap: 14px; margin: -16px 0 14px; padding: 10px; border: 1px solid #34362f; background: #0d0e0b; }
.reference-input img { width: 70px; aspect-ratio: 1 / 1; object-fit: cover; object-position: center 38%; border: 1px solid #505248; }
.reference-input div { display: grid; gap: 7px; min-width: 0; }
.reference-input strong { color: var(--lime); font: 720 9px ui-monospace, monospace; letter-spacing: .12em; }
.reference-input span { color: #d1d2c8; font-size: 13px; line-height: 1.4; }
.prompt-demo { position: relative; padding: 20px 54px 20px 20px; border: 1px solid #44463d; background: #11120f; }
.prompt-demo > span { color: #8f9087; font: 700 10px ui-monospace, monospace; letter-spacing: .1em; }
.prompt-demo p { margin: 12px 0 0; color: var(--bone); font-size: 16px; line-height: 1.62; }
.prompt-demo > b { position: absolute; right: 16px; bottom: 16px; display: grid; place-items: center; width: 31px; height: 31px; background: var(--lime); color: var(--night); }
.executed-block { margin-top: 22px; }
.executed-block > p { margin: 0 0 8px; color: #8f9087; font: 700 10px ui-monospace, monospace; letter-spacing: .1em; text-transform: uppercase; }
.executed-block ul { margin: 0; padding: 0; border-top: 1px solid #34362f; list-style: none; }
.executed-block li { display: grid; grid-template-columns: 34px minmax(0, 1fr); align-items: center; min-height: 39px; padding: 7px 0; border-bottom: 1px solid #292b26; color: #c5c6bc; font-size: 13px; line-height: 1.45; }
.executed-block li span { color: var(--lime); font: 700 10px ui-monospace, monospace; }
.comparison-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 16px; }
.comparison-actions button { min-height: 46px; border: 1px solid #44463d; background: transparent; color: #c5c6bc; cursor: pointer; transition: border-color .18s ease, background .18s ease, color .18s ease; }
.comparison-actions button:last-child { border-color: var(--lime); background: var(--lime); color: var(--night); font-weight: 800; }
.comparison-actions button:hover { border-color: var(--lime); }
.expansion-visual { position: relative; display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); align-items: center; min-height: 680px; padding: 42px; overflow: hidden; background: radial-gradient(circle at 65% 55%, rgba(184,255,0,.12), transparent 36%), #171813; }
.expansion-visual::before { position: absolute; top: 24px; left: 24px; color: rgba(244,244,238,.3); font: 700 10px ui-monospace, monospace; letter-spacing: .13em; content: "LANDSCAPE → PORTRAIT"; }
.expand-card { position: relative; margin: 0; border: 1px solid rgba(244,244,238,.42); background: #0b0c09; box-shadow: 0 26px 55px rgba(0,0,0,.42); }
.expand-card img { display: block; width: 100%; height: 100%; object-fit: cover; }
.expand-card figcaption { position: absolute; top: 12px; left: 12px; padding: 8px 10px; background: rgba(7,7,7,.84); color: var(--bone); font: 760 10px ui-monospace, monospace; letter-spacing: .05em; }
.expand-before { z-index: 1; transform: translate(24px, -95px) rotate(-4deg); }
.expand-before img { aspect-ratio: 3 / 2; }
.expand-after { z-index: 2; margin-left: -48px; transform: translateY(60px) rotate(3deg); }
.expand-after img { aspect-ratio: 9 / 16; max-height: 535px; }
.expand-arrow { position: absolute; top: 48%; left: 45%; z-index: 3; display: grid; place-items: center; width: 54px; height: 54px; border: 2px solid var(--night); border-radius: 50%; background: var(--lime); color: var(--night); font-size: 24px; box-shadow: 0 8px 24px rgba(0,0,0,.35); }
.showcase-disclaimer { margin: 28px 0 0; color: #686960; font-size: 11px; line-height: 1.6; }

.section-shell { width: min(calc(100% - 48px), var(--content)); margin: 0 auto; padding: clamp(92px, 10vw, 148px) 0; }
.section-heading { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(240px, .65fr); gap: 32px; align-items: end; margin-bottom: 54px; }
.section-heading .section-kicker { grid-column: 1 / -1; margin-bottom: -4px; }
.section-heading h2 { max-width: 820px; margin: 0; font-size: clamp(42px, 5.7vw, 78px); font-weight: 900; line-height: .98; letter-spacing: -.058em; text-wrap: balance; }
.section-heading > p:last-child { max-width: 500px; margin: 0; color: var(--muted); font-size: 16px; line-height: 1.7; }

.feature-section, .workflow-section, .pricing-section { border-bottom: 1px solid var(--line); }
.feature-studio { display: grid; grid-template-columns: 310px minmax(0, 1fr); min-height: 690px; border: 1px solid var(--line); }
.feature-tabs { display: flex; flex-direction: column; border-right: 1px solid var(--line); }
.feature-tab { display: grid; grid-template-columns: 38px 1fr; align-items: center; min-height: 82px; padding: 16px 20px; border: 0; border-bottom: 1px solid var(--line); background: transparent; color: #a9aaa0; text-align: left; cursor: pointer; transition: color .18s ease, background .18s ease; }
.feature-tab span { font: 720 11px ui-monospace, monospace; }
.feature-tab[aria-selected="true"] { background: var(--lime); color: var(--night); font-weight: 820; }
.feature-tab:not([aria-selected="true"]):hover { background: #141510; color: var(--bone); }
.feature-stage { position: relative; display: grid; grid-template-columns: minmax(250px, .85fr) minmax(320px, 1.15fr); min-height: 688px; overflow: hidden; background: linear-gradient(135deg, #10110e, #171912); }
.feature-stage::before { content: ""; position: absolute; right: 5%; bottom: -15%; width: 420px; height: 420px; border-radius: 50%; background: rgba(184,255,0,.14); filter: blur(34px); }
.feature-stage-copy { position: relative; z-index: 2; align-self: end; padding: 42px; }
.feature-stage-copy > span { color: var(--lime); font: 700 10px ui-monospace, monospace; letter-spacing: .13em; }
.feature-stage-copy h3 { margin: 16px 0; font-size: clamp(32px, 4vw, 52px); line-height: 1.02; letter-spacing: -.045em; }
.feature-stage-copy p { max-width: 430px; margin: 0; color: #adaea5; line-height: 1.75; }
.feature-phone { position: relative; display: flex; align-items: flex-end; justify-content: center; padding: 64px 46px 0; }
.feature-phone img { position: relative; z-index: 1; width: min(100%, 370px); max-height: 650px; object-fit: cover; object-position: top; border: 1px solid rgba(255,255,255,.2); box-shadow: 0 25px 60px rgba(0,0,0,.46); transition: opacity .14s ease, transform .22s ease; }
.feature-phone img.is-changing { opacity: 0; transform: translateY(14px); }

.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.step-card { min-height: 300px; padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.step-card > span { display: inline-block; color: var(--lime); font: 720 12px ui-monospace, monospace; }
.step-card h3 { margin: 104px 0 14px; font-size: clamp(25px, 3vw, 37px); letter-spacing: -.04em; }
.step-card p { margin: 0; color: var(--muted); line-height: 1.65; }

.gallery-section { padding: 0 0 clamp(92px, 10vw, 148px); border-bottom: 1px solid var(--line); overflow: hidden; }
.gallery-section .section-shell { padding-bottom: 42px; }
.gallery-section .section-heading { margin-bottom: 0; }
.gallery-track { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(270px, 21vw); gap: 18px; overflow-x: auto; padding: 0 max(24px, calc((100vw - var(--content)) / 2)) 30px; scroll-snap-type: x mandatory; scrollbar-color: var(--lime) #191a16; }
.gallery-card { margin: 0; scroll-snap-align: start; }
.gallery-card img { width: 100%; border: 1px solid var(--line); background: #111; }
.gallery-card figcaption { display: flex; gap: 14px; padding: 16px 2px; color: #c8c9c0; font-size: 14px; }
.gallery-card figcaption span { color: var(--lime); font: 720 11px ui-monospace, monospace; }

.plans-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.plan-card { position: relative; min-height: 390px; padding: 32px; border: 1px solid var(--line); background: var(--night-2); }
.plan-card.featured { border-color: var(--lime); background: linear-gradient(160deg, rgba(184,255,0,.14), #10110e 54%); }
.plan-badge { display: inline-flex; align-items: center; min-height: 28px; padding: 0 10px; border: 1px solid #42443a; color: #b7b8ae; font-size: 11px; }
.featured .plan-badge { border-color: var(--lime); background: var(--lime); color: var(--night); font-weight: 800; }
.plan-card > p { margin: 54px 0 12px; color: var(--muted); }
.plan-card h3 { min-height: 78px; margin: 0; font-size: clamp(32px, 3.6vw, 48px); line-height: 1.02; letter-spacing: -.045em; }
.plan-card > div { max-width: 290px; min-height: 66px; margin-top: 20px; color: var(--muted); font-size: 14px; line-height: 1.55; }
.plan-card > a { position: absolute; right: 32px; bottom: 30px; left: 32px; display: flex; justify-content: space-between; padding-top: 17px; border-top: 1px solid #35372f; color: var(--bone); text-decoration: none; font-size: 13px; }
.plan-card > a span { color: var(--lime); }

.faq-section { display: grid; grid-template-columns: minmax(280px, .68fr) minmax(0, 1.32fr); gap: clamp(48px, 8vw, 120px); }
.faq-section .section-heading { display: block; margin: 0; }
.faq-section .section-heading .section-kicker { margin-bottom: 20px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 90px; padding: 20px 0; cursor: pointer; font-size: clamp(18px, 2vw, 23px); font-weight: 720; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--lime); font-size: 28px; font-weight: 400; transition: transform .2s ease; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details p { max-width: 760px; margin: -4px 0 26px; color: var(--muted); line-height: 1.75; }

.marketing-footer { display: grid; grid-template-columns: 1.35fr .65fr; gap: 80px; padding: clamp(72px, 10vw, 140px) max(24px, calc((100vw - var(--content)) / 2)) 48px; background: var(--bone); color: var(--night); }
.footer-brand { color: var(--night); }
.marketing-footer h2 { max-width: 800px; margin: 36px 0 44px; font-size: clamp(46px, 6vw, 84px); line-height: .97; letter-spacing: -.06em; }
.marketing-footer .primary-button { width: min(100%, 320px); }
.footer-meta { display: flex; flex-direction: column; align-items: flex-start; align-self: end; gap: 13px; }
.footer-meta p { margin: 0 0 8px; color: #62645b; font: 700 11px ui-monospace, monospace; letter-spacing: .12em; text-transform: uppercase; }
.footer-meta a { color: #34352f; font-size: 13px; text-underline-offset: 4px; }
.footer-meta span { margin-top: 22px; color: #707168; font-size: 11px; }

.legal-page { background: radial-gradient(circle at 85% -10%, #202b0c 0, transparent 30rem), var(--night); }
.legal-header { justify-content: space-between; }
.languages { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; }
.languages a { padding: 8px 10px; color: var(--muted); font-size: 13px; text-decoration: none; white-space: nowrap; }
.languages a[aria-current="page"] { background: var(--bone); color: var(--night); }
.legal-page main { width: min(100% - 40px, 980px); margin: 0 auto; }
.legal-document { max-width: 820px; margin: 0 auto; padding: 48px 0 96px; }
.back { display: inline-block; margin-bottom: 44px; color: var(--lime); text-decoration: none; font-size: 14px; }
.legal-document h1 { margin: 0 0 18px; font-size: clamp(36px, 7vw, 64px); line-height: 1.04; letter-spacing: -.035em; }
.legal-document h2 { margin: 54px 0 16px; padding-top: 12px; border-top: 1px solid var(--line); font-size: clamp(22px, 4vw, 28px); line-height: 1.3; }
.legal-document h3 { margin: 32px 0 10px; font-size: 19px; }
.legal-document p, .legal-document li { color: #c1c2b8; line-height: 1.8; }
.legal-document a { color: var(--lime); }
.legal-document code { padding: 2px 5px; background: #1b1d17; }
.legal-document .table-wrap { overflow-x: auto; }
.legal-document table { width: 100%; border-collapse: collapse; }
.legal-document th, .legal-document td { padding: 12px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.legal-footer { display: flex; justify-content: space-between; gap: 24px; padding: 24px max(20px, calc((100vw - 980px) / 2)); border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }

.reveal { opacity: 1; transform: none; }

@media (max-width: 1040px) {
  .marketing-hero { grid-template-columns: minmax(0, .88fr) minmax(430px, 1.12fr); }
  .site-navigation { gap: 18px; }
  .header-cta { display: none; }
  .effect-story, .effect-story.is-reversed { grid-template-columns: 1fr 1fr; min-height: 590px; }
  .comparison { min-height: 590px; }
  .feature-studio { grid-template-columns: 230px minmax(0, 1fr); }
  .feature-stage { grid-template-columns: .8fr 1.2fr; }
  .feature-stage-copy { padding: 30px; }
  .plans-grid { grid-template-columns: 1fr; }
  .plan-card { min-height: 320px; }
  .plan-card h3 { min-height: auto; }
}

@media (max-width: 820px) {
  .site-header { min-height: 66px; padding: 10px 18px; }
  .brand img { width: 38px; height: 38px; }
  .menu-button { display: block; margin-left: auto; }
  .site-navigation { position: absolute; top: 66px; right: 0; left: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 8px 18px 18px; border-bottom: 1px solid var(--line); background: #0b0c09; }
  .site-navigation.is-open { display: flex; }
  .site-navigation a { padding: 15px 4px; border-bottom: 1px solid var(--line); }
  .header-actions { gap: 0; }
  .language-select select { width: 110px; min-height: 44px; }
  .marketing-hero { grid-template-columns: 1fr; min-height: auto; padding: 64px 0 78px; overflow: visible; }
  .hero-copy h1 { max-width: 720px; }
  .hero-visual { min-height: 630px; margin: 12px 4vw 0; }
  .phone-stack { inset: 64px 12% 0; }
  .trust-rail { grid-template-columns: repeat(2, 1fr); }
  .trust-rail > span:nth-child(2) { border-right: 0; }
  .trust-rail > span:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .showcase-heading { grid-template-columns: 1fr; }
  .effect-story, .effect-story.is-reversed { grid-template-columns: 1fr; }
  .effect-story.is-reversed .comparison { order: 1; }
  .effect-story.is-reversed .expansion-visual { order: 1; }
  .effect-story.is-reversed .effect-story-copy { order: 2; }
  .comparison { min-height: 0; aspect-ratio: 1 / 1; }
  .expansion-visual { min-height: 610px; }
  .effect-story-copy { min-height: 390px; }
  .section-heading { grid-template-columns: 1fr; }
  .feature-studio { grid-template-columns: 1fr; min-height: auto; }
  .feature-tabs { display: grid; grid-template-columns: repeat(3, 1fr); border-right: 0; border-bottom: 1px solid var(--line); }
  .feature-tab { grid-template-columns: 1fr; gap: 7px; min-height: 82px; border-right: 1px solid var(--line); border-bottom: 0; }
  .feature-tab:last-child { border-right: 0; }
  .feature-stage { min-height: 600px; }
  .feature-phone { padding-right: 24px; padding-left: 24px; }
  .steps-grid { grid-template-columns: 1fr; }
  .step-card { min-height: 230px; }
  .step-card h3 { margin-top: 64px; }
  .gallery-track { grid-auto-columns: minmax(250px, 46vw); }
  .faq-section { grid-template-columns: 1fr; }
  .marketing-footer { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .marketing-hero, .section-shell { width: min(calc(100% - 32px), var(--content)); }
  .marketing-hero { gap: 46px; padding-top: 48px; }
  .hero-copy h1 { font-size: clamp(50px, 14.5vw, 72px); }
  .hero-copy h2 { margin-top: 22px; font-size: 25px; }
  .hero-body { font-size: 15px; line-height: 1.7; }
  .hero-actions { align-items: stretch; flex-direction: column; margin-top: 30px; }
  .hero-actions .primary-button { width: 100%; min-width: 0; }
  .text-button { align-self: flex-start; }
  .hero-visual { min-height: 480px; margin: 0; }
  .phone-stack { inset: 60px 7% 0; }
  .phone { bottom: -38px; }
  .phone-main { left: 25%; width: 52%; }
  .phone-left { left: -2%; }
  .phone-right { right: -2%; }
  .prompt-chip { min-width: 0; max-width: 55%; padding: 9px 10px; font-size: 10px; }
  .prompt-chip b { width: 19px; height: 19px; font-size: 15px; }
  .chip-1 { top: 6%; left: -5px; }
  .chip-2 { top: 27%; right: -5px; }
  .chip-3 { bottom: 23%; left: -6px; }
  .chip-4 { right: -6px; bottom: 6%; }
  .trust-rail > span { min-height: 72px; padding: 14px 16px; font-size: 12px; }
  .showcase-heading { margin-bottom: 32px; }
  .showcase-heading h2 { font-size: clamp(42px, 12.5vw, 57px); }
  .effect-story-list { gap: 14px; }
  .comparison { aspect-ratio: 4 / 5; }
  .comparison-label { top: 10px; }
  .before-label { left: 10px; }
  .after-label { right: 10px; }
  .comparison-help { right: 10px; bottom: 10px; }
  .comparison-line b { width: 46px; height: 46px; }
  .effect-story-copy { min-height: 350px; padding: 34px 22px; }
  .effect-story-copy h3 { margin: 24px 0 28px; font-size: 40px; }
  .reference-input { margin-top: -12px; }
  .executed-block { margin-top: 18px; }
  .expansion-visual { min-height: 540px; padding: 26px 18px; }
  .expansion-visual::before { top: 16px; left: 16px; }
  .expand-before { transform: translate(14px, -82px) rotate(-4deg); }
  .expand-after { margin-left: -34px; transform: translateY(54px) rotate(3deg); }
  .expand-after img { max-height: 430px; }
  .expand-arrow { left: 42%; width: 48px; height: 48px; }
  .section-shell { padding: 86px 0; }
  .section-heading { margin-bottom: 36px; }
  .section-heading h2 { font-size: clamp(39px, 12vw, 56px); }
  .feature-tabs { overflow-x: auto; }
  .feature-tab { min-width: 118px; padding: 12px; font-size: 12px; }
  .feature-stage { grid-template-columns: 1fr; min-height: 690px; }
  .feature-stage-copy { align-self: start; padding: 30px 24px 0; }
  .feature-stage-copy h3 { font-size: 34px; }
  .feature-phone { position: absolute; right: 0; bottom: 0; left: 0; height: 470px; padding: 25px 48px 0; }
  .feature-phone img { width: min(100%, 310px); max-height: 445px; }
  .gallery-track { grid-auto-columns: 72vw; padding-right: 16px; padding-left: 16px; }
  .plan-card { min-height: 355px; padding: 26px; }
  .plan-card > a { right: 26px; bottom: 26px; left: 26px; }
  .faq-list summary { min-height: 80px; font-size: 17px; }
  .marketing-footer { padding-right: 16px; padding-left: 16px; }
  .marketing-footer h2 { font-size: 48px; }
  .legal-header { align-items: flex-start; flex-direction: column; }
  .languages { width: 100%; }
  .legal-page main { width: min(100% - 32px, 980px); }
  .legal-footer { flex-direction: column; }
}

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