:root {
  --night: #0b0f17;
  --night-2: #121826;
  --night-line: rgba(255, 255, 255, .09);
  --paper: #faf8f4;
  --paper-2: #f2eee6;
  --ink: #141a24;
  --muted: #646d7a;
  --muted-light: #a3abb8;
  --line: #e4dfd5;
  --coral: #ff6f4f;
  --rose: #e8577e;
  --violet: #a36cf0;
  --gold: #d7a83d;
  --felvero-grad: linear-gradient(100deg, #ff8a5c 0%, #f0607a 50%, #b07cf0 100%);
  --shell: min(1200px, calc(100% - 48px));
  --radius: 22px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  --serif: "Instrument Serif", Georgia, serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; overflow-x: hidden; color: var(--ink); background: var(--paper); font-family: Manrope, system-ui, sans-serif; line-height: 1.55; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
[hidden] { display: none !important; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
h1, h2, h3 { margin: 0; line-height: 1.04; letter-spacing: -.03em; }
h2 { font-size: clamp(2.2rem, 4.6vw, 3.8rem); font-weight: 800; }
em { font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -.01em; }
p { margin: 0; }
svg { width: 1em; height: 1em; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }
figure { margin: 0; }
.shell { width: var(--shell); margin: 0 auto; }
:focus-visible { outline: 2px solid var(--coral); outline-offset: 3px; border-radius: 6px; }

.skip-link { position: fixed; z-index: 100; top: -4rem; left: 1rem; padding: .6rem .9rem; color: #fff; background: var(--ink); border-radius: 8px; }
.skip-link:focus { top: 1rem; }

.eyebrow { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 18px; color: var(--coral); font-size: .76rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 22px; height: 2px; background: currentColor; border-radius: 2px; }
.eyebrow-light { color: #ff9a7a; }

/* Buttons */
.button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 52px; padding: 0 24px; border-radius: 999px; font-weight: 700; font-size: .95rem; transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s; }
.button svg { font-size: 1.1em; transition: transform .25s var(--ease); }
.button:hover { transform: translateY(-2px); }
.button:hover svg { transform: translateX(3px); }
.button-primary { color: var(--night); background: #fff; box-shadow: 0 10px 30px -10px rgba(255, 255, 255, .45); }
.button-ghost { color: #fff; border: 1px solid rgba(255, 255, 255, .22); background: rgba(255, 255, 255, .04); }
.button-ghost:hover { background: rgba(255, 255, 255, .1); }
.button-felvero { color: #fff; background: var(--felvero-grad); box-shadow: 0 14px 34px -12px rgba(240, 96, 122, .7); }
.button-felvero:hover svg { transform: translate(2px, -2px); }

/* Header */
.site-header { position: fixed; z-index: 50; inset: 0 0 auto; transition: background .3s, border-color .3s, backdrop-filter .3s; border-bottom: 1px solid transparent; }
.site-header.is-scrolled { background: rgba(11, 15, 23, .78); border-color: var(--night-line); backdrop-filter: blur(16px) saturate(1.4); -webkit-backdrop-filter: blur(16px) saturate(1.4); }
.nav-shell { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: #fff; font-weight: 800; font-size: .95rem; white-space: nowrap; }
.brand img { width: 32px; height: 32px; object-fit: cover; border-radius: 9px; }
.main-nav { display: flex; align-items: center; gap: 30px; color: #c6ccd6; font-size: .9rem; font-weight: 600; }
.main-nav a:not(.nav-contact) { position: relative; transition: color .2s; }
.main-nav a:not(.nav-contact)::after { content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 2px; background: var(--felvero-grad); border-radius: 2px; transform: scaleX(0); transition: transform .25s var(--ease); }
.main-nav a:hover { color: #fff; }
.main-nav a:hover::after { transform: scaleX(1); }
.nav-contact { display: inline-flex; align-items: center; gap: 6px; padding: 10px 18px; color: var(--night); background: #fff; border-radius: 999px; font-weight: 700; }
.menu-button { display: none; width: 44px; height: 44px; padding: 0; border: 1px solid var(--night-line); border-radius: 12px; background: rgba(255, 255, 255, .05); position: relative; }
.menu-button span { position: absolute; left: 12px; right: 12px; height: 2px; background: #fff; border-radius: 2px; transition: transform .3s var(--ease); }
.menu-button span:first-child { top: 17px; }
.menu-button span:last-child { top: 25px; }
.menu-open .menu-button span:first-child { transform: translateY(4px) rotate(45deg); }
.menu-open .menu-button span:last-child { transform: translateY(-4px) rotate(-45deg); }

/* Hero */
.hero { position: relative; overflow: hidden; color: #fff; background: var(--night); padding: 150px 0 0; }
.hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(var(--night-line) 1px, transparent 1px), linear-gradient(90deg, var(--night-line) 1px, transparent 1px); background-size: 64px 64px; mask-image: radial-gradient(ellipse 80% 70% at 60% 30%, #000 20%, transparent 75%); -webkit-mask-image: radial-gradient(ellipse 80% 70% at 60% 30%, #000 20%, transparent 75%); opacity: .55; }
.hero-glow { position: absolute; inset: -20% -10% auto auto; width: 900px; height: 900px; background: radial-gradient(circle at 40% 40%, rgba(255, 111, 79, .35), transparent 55%), radial-gradient(circle at 70% 60%, rgba(163, 108, 240, .32), transparent 55%); filter: blur(40px); animation: drift 16s ease-in-out infinite alternate; pointer-events: none; }
@keyframes drift { to { transform: translate(-80px, 60px) scale(1.08); } }
.hero-layout { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr); align-items: center; gap: 56px; }
.pill { display: inline-flex; align-items: center; gap: 10px; padding: 8px 16px 8px 12px; margin-bottom: 30px; border: 1px solid rgba(255, 255, 255, .14); border-radius: 999px; background: rgba(255, 255, 255, .05); color: #e3e6ec; font-size: .86rem; font-weight: 600; transition: border-color .2s, background .2s; }
.pill:hover { border-color: rgba(255, 138, 92, .6); background: rgba(255, 138, 92, .08); }
.pill-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--coral); box-shadow: 0 0 0 4px rgba(255, 111, 79, .2); animation: pulse 2s infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(255, 111, 79, 0); } }
.hero h1 { font-size: clamp(3.2rem, 6.2vw, 5.4rem); font-weight: 800; letter-spacing: -.045em; line-height: .98; }
.hero h1 em { background: var(--felvero-grad); -webkit-background-clip: text; background-clip: text; color: transparent; padding-right: .08em; }
.hero-lede { max-width: 520px; margin-top: 26px; color: var(--muted-light); font-size: 1.14rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.hero-stats { display: flex; gap: 36px; margin: 52px 0 0; padding-top: 28px; border-top: 1px solid var(--night-line); }
.hero-stats div { margin: 0; }
.hero-stats dt { font-family: var(--serif); font-size: 2.6rem; line-height: 1; }
.hero-stats dd { margin: 6px 0 0; color: var(--muted-light); font-size: .82rem; }

.hero-art { position: relative; padding: 30px 0 70px 0; }
.browser { position: relative; overflow: hidden; border: 1px solid rgba(255, 255, 255, .12); border-radius: 16px; background: #1a2030; box-shadow: 0 50px 100px -30px rgba(0, 0, 0, .7), 0 0 0 1px rgba(0, 0, 0, .3); }
.hero-art .browser { transform: perspective(1600px) rotateY(-9deg) rotateX(3deg); transform-origin: left center; transition: transform .8s var(--ease); }
.hero-art:hover .browser { transform: perspective(1600px) rotateY(-4deg) rotateX(1deg); }
.browser-bar { display: flex; align-items: center; gap: 7px; height: 36px; padding: 0 14px; background: rgba(255, 255, 255, .06); border-bottom: 1px solid rgba(255, 255, 255, .08); }
.browser-bar i { width: 10px; height: 10px; border-radius: 50%; background: #ff5f57; }
.browser-bar i:nth-child(2) { background: #febc2e; }
.browser-bar i:nth-child(3) { background: #28c840; }
.browser-bar span { margin: 0 auto; padding: 3px 16px; border-radius: 6px; background: rgba(255, 255, 255, .07); color: #aab2c0; font-size: .72rem; font-weight: 600; transform: translateX(-20px); }
.phone { overflow: hidden; border: 7px solid #10141d; border-radius: 34px; background: #10141d; box-shadow: 0 40px 80px -24px rgba(0, 0, 0, .65), 0 0 0 1px rgba(255, 255, 255, .1); }
.phone img { border-radius: 27px; }
.hero-phone { position: absolute; right: -14px; bottom: 0; width: 27%; transform: rotate(6deg); animation: float 7s ease-in-out infinite; }
@keyframes float { 50% { transform: rotate(6deg) translateY(-12px); } }
.float-card { position: absolute; left: -26px; bottom: 34px; display: flex; align-items: center; gap: 12px; padding: 12px 18px 12px 12px; border-radius: 16px; background: rgba(255, 255, 255, .96); color: var(--ink); box-shadow: 0 24px 50px -16px rgba(0, 0, 0, .55); animation: float-card 6s ease-in-out infinite; }
@keyframes float-card { 50% { transform: translateY(-8px); } }
.float-icon img { width: 40px; height: 40px; border-radius: 11px; }
.float-card strong { display: block; font-size: .9rem; }
.float-card small { color: var(--muted); font-size: .76rem; }

.marquee { position: relative; margin-top: 70px; padding: 22px 0; overflow: hidden; border-top: 1px solid var(--night-line); mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee-track { display: flex; width: max-content; animation: marquee 40s linear infinite; }
.marquee span { display: inline-flex; align-items: center; gap: 40px; padding-right: 40px; color: #6f7888; font-family: var(--serif); font-size: 1.7rem; white-space: nowrap; }
.marquee span::after { content: "✦"; font-size: .8rem; color: var(--coral); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* Felvero */
.felvero { position: relative; overflow: hidden; padding: 130px 0; color: #fff; background: radial-gradient(ellipse 60% 50% at 85% 0%, rgba(240, 96, 122, .22), transparent 70%), radial-gradient(ellipse 50% 40% at 0% 60%, rgba(163, 108, 240, .16), transparent 70%), var(--night-2); }
.felvero-head { max-width: 820px; }
.product-badge { display: inline-flex; align-items: center; gap: 14px; margin-bottom: 30px; }
.product-badge img { width: 56px; height: 56px; border-radius: 16px; box-shadow: 0 12px 30px -8px rgba(255, 111, 79, .6); }
.product-badge strong { display: block; font-size: 1.15rem; }
.product-badge small { color: #ff9a7a; font-size: .8rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.felvero h2 em { background: var(--felvero-grad); -webkit-background-clip: text; background-clip: text; color: transparent; padding-right: .06em; }
.felvero-head p { max-width: 680px; margin-top: 24px; color: var(--muted-light); font-size: 1.1rem; }
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 64px 0 0; padding: 0; list-style: none; counter-reset: flow; }
.flow li { position: relative; padding: 26px 24px 28px; border: 1px solid var(--night-line); border-radius: var(--radius); background: rgba(255, 255, 255, .03); transition: border-color .3s, background .3s, transform .3s var(--ease); }
.flow li:hover { transform: translateY(-4px); border-color: rgba(255, 138, 92, .45); background: rgba(255, 255, 255, .055); }
.flow li:not(:last-child)::after { content: ""; position: absolute; top: 40px; right: -17px; width: 18px; height: 1px; background: linear-gradient(90deg, rgba(255, 138, 92, .7), transparent); }
.flow-num { display: inline-block; margin-bottom: 22px; font-family: var(--serif); font-size: 2.2rem; line-height: 1; background: var(--felvero-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.flow h3 { font-size: 1.15rem; letter-spacing: -.01em; }
.flow p { margin-top: 10px; color: var(--muted-light); font-size: .92rem; }

.showcase { margin-top: 70px; }
.tabs { display: inline-flex; gap: 4px; margin: 0 auto 22px; padding: 5px; border: 1px solid var(--night-line); border-radius: 999px; background: rgba(255, 255, 255, .04); }
.showcase { text-align: center; }
.tabs button { padding: 10px 22px; border: 0; border-radius: 999px; background: transparent; color: var(--muted-light); font-weight: 700; font-size: .9rem; transition: background .25s, color .25s; }
.tabs button:hover { color: #fff; }
.tabs button[aria-selected="true"] { color: #fff; background: var(--felvero-grad); }
.showcase-frame { max-width: 1060px; margin: 0 auto; text-align: left; }
.browser-light { background: #f3f2f8; border-color: rgba(255, 255, 255, .18); box-shadow: 0 60px 120px -40px rgba(240, 96, 122, .35), 0 40px 80px -30px rgba(0, 0, 0, .6); }
.browser-light .browser-bar { background: #e9e7ef; border-color: #dcd9e4; }
.browser-light .browser-bar span { background: #fff; color: #6d7280; }
.tab-panels img { width: 100%; animation: fade-in .45s var(--ease); }
@keyframes fade-in { from { opacity: 0; transform: scale(.99); } }

.felvero-cta { display: flex; align-items: center; justify-content: space-between; gap: 40px; margin-top: 56px; padding: 34px 36px; border: 1px solid var(--night-line); border-radius: var(--radius); background: rgba(255, 255, 255, .04); }
.cta-title { font-size: 1.3rem; font-weight: 800; letter-spacing: -.01em; }
.cta-sub { max-width: 620px; margin-top: 8px; color: var(--muted-light); font-size: .95rem; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 10px; flex: none; }

/* LineTalk */
.linetalk { padding: 130px 0 90px; background: linear-gradient(180deg, #fbf3df 0%, var(--paper) 100%); }
.linetalk-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 80px; }
.linetalk-visual { position: relative; display: flex; justify-content: center; min-height: 600px; }
.linetalk-visual::before { content: ""; position: absolute; inset: 8% 6%; border-radius: 50%; background: radial-gradient(circle, rgba(215, 168, 61, .35), transparent 65%); }
.linetalk-visual .phone { position: absolute; width: 46%; max-width: 270px; }
.phone-center { top: 0; left: 46%; transform: rotate(4deg); }
.phone-tilt-left { top: 60px; left: 12%; transform: rotate(-7deg); }
.linetalk .eyebrow { color: #b0831f; }
.linetalk-copy > p:not(.eyebrow) { margin-top: 22px; color: var(--muted); font-size: 1.08rem; }
.linetalk h2 em { color: #b0831f; }
.feature-list { display: grid; gap: 14px; margin: 34px 0; padding: 0; list-style: none; }
.feature-list li { display: flex; gap: 16px; padding: 18px 20px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255, 255, 255, .7); transition: transform .25s var(--ease), box-shadow .25s; }
.feature-list li:hover { transform: translateX(4px); box-shadow: 0 14px 30px -18px rgba(20, 26, 36, .35); }
.feature-list svg { width: 40px; height: 40px; padding: 10px; color: #8a6514; background: #f6e7bd; border-radius: 12px; }
.feature-list span { color: var(--muted); font-size: .94rem; }
.feature-list strong { display: block; color: var(--ink); font-size: 1rem; }
.text-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; border-bottom: 2px solid var(--gold); padding-bottom: 3px; }
.text-link:hover svg { transform: translateX(3px); }
.text-link svg { transition: transform .2s; }

/* Work */
.work { padding: 100px 0 130px; }
.section-head { display: grid; grid-template-columns: 1.2fr .8fr; align-items: end; gap: 40px; margin-bottom: 44px; }
.section-head > p { color: var(--muted); font-size: 1.06rem; }
.section-head h2 em, .privacy h2 em { color: var(--coral); }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 34px; }
.filters button { padding: 10px 20px; border: 1px solid var(--line); border-radius: 999px; background: #fff; color: var(--muted); font-weight: 700; font-size: .9rem; transition: all .2s; }
.filters button:hover { color: var(--ink); border-color: #c9c2b4; }
.filters button.is-active { color: #fff; background: var(--ink); border-color: var(--ink); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; grid-auto-flow: dense; }
.card { display: flex; flex-direction: column; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: transform .35s var(--ease), box-shadow .35s var(--ease), opacity .3s; }
.card:hover { transform: translateY(-6px); box-shadow: 0 30px 60px -30px rgba(20, 26, 36, .4); }
.card.is-hidden { display: none; }
.card-wide { grid-column: span 2; }
.card-full { grid-column: 1 / -1; flex-direction: row; }
.card-full .card-media { flex: 1.5; height: auto; min-height: 340px; }
.card-full .card-media img { position: absolute; inset: 0; object-position: left top; }
.card-full .card-body { flex: 1; justify-content: center; padding: 40px; }
.card-full h3 { font-size: 2rem; }
.card-media { position: relative; display: block; height: 290px; overflow: hidden; background: color-mix(in srgb, var(--accent) 16%, #fff); }
.card-media::after { content: ""; position: absolute; inset: auto 0 0; height: 40%; background: linear-gradient(transparent, rgba(0, 0, 0, .04)); }
.media-phone img { width: 46%; max-width: 180px; margin: 34px auto 0; border: 5px solid #10141d; border-radius: 22px; box-shadow: 0 24px 40px -16px rgba(0, 0, 0, .45); transition: transform .5s var(--ease); }
.card-wide .media-phone img { width: 26%; }
.media-cover img { width: 100%; height: 100%; object-fit: cover; object-position: top center; transition: transform .6s var(--ease); }
.card:hover .media-phone img { transform: translateY(-10px) rotate(-2deg); }
.card:hover .media-cover img { transform: scale(1.04); }
.card-body { display: flex; flex-direction: column; flex: 1; padding: 24px 26px 26px; }
.card-type { color: color-mix(in srgb, var(--accent) 80%, #000); font-size: .74rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.card h3 { margin-top: 8px; font-size: 1.5rem; }
.card-body > p:not(.card-type) { margin-top: 10px; color: var(--muted); font-size: .94rem; }
.card-links { display: flex; align-items: center; gap: 18px; margin-top: auto; padding-top: 20px; font-weight: 700; font-size: .9rem; }
.card-links .muted { color: var(--muted); font-weight: 600; }
.card-links a:hover { color: var(--coral); }

/* Principles */
.principles { padding: 130px 0; color: #fff; background: var(--night); }
.principles-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; align-items: start; }
.principle-list { margin: 0; padding: 0; list-style: none; }
.principle-list li { display: grid; grid-template-columns: 70px 1fr; gap: 10px; padding: 28px 0; border-top: 1px solid var(--night-line); }
.principle-list li:last-child { border-bottom: 1px solid var(--night-line); }
.principle-list span { font-family: var(--serif); font-size: 2rem; line-height: 1; color: #ff9a7a; }
.principle-list p { color: var(--muted-light); font-size: 1.02rem; }
.principle-list strong { display: block; margin-bottom: 4px; color: #fff; font-size: 1.15rem; }
.principles h2 em { color: #ff9a7a; }

/* Privacy */
.privacy { padding: 130px 0; background: var(--paper-2); }
.privacy-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: start; }
.privacy-layout > div > p:not(.eyebrow) { margin-top: 20px; color: var(--muted); }
.privacy h2 { font-size: clamp(2rem, 3.6vw, 3rem); }
.privacy-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0; padding: 0; list-style: none; }
.privacy-list a { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 18px 20px; border: 1px solid var(--line); border-radius: 14px; background: #fff; font-weight: 700; transition: border-color .2s, transform .2s var(--ease); }
.privacy-list a::after { content: "→"; color: var(--muted); transition: transform .2s, color .2s; }
.privacy-list a:hover { border-color: var(--coral); transform: translateY(-2px); }
.privacy-list a:hover::after { color: var(--coral); transform: translateX(3px); }
.privacy-list small { margin-left: auto; color: var(--muted); font-weight: 600; font-size: .78rem; }

/* Contact */
.contact { padding: 0 0 110px; background: var(--paper-2); }
.contact-card { position: relative; overflow: hidden; padding: 80px 60px; border-radius: 32px; color: #fff; background: radial-gradient(ellipse 70% 90% at 100% 0%, rgba(240, 96, 122, .5), transparent 60%), radial-gradient(ellipse 60% 80% at 0% 100%, rgba(163, 108, 240, .4), transparent 60%), var(--night); text-align: center; }
.contact-card h2 { max-width: 760px; margin: 0 auto; }
.contact-mail { display: inline-flex; align-items: center; gap: 12px; margin-top: 36px; font-family: var(--serif); font-size: clamp(1.6rem, 4vw, 2.8rem); border-bottom: 1px solid rgba(255, 255, 255, .35); transition: border-color .2s; }
.contact-mail:hover { border-color: #fff; }
.contact-mail svg { stroke-width: 1.5; transition: transform .25s var(--ease); }
.contact-mail:hover svg { transform: translate(4px, -4px); }

/* Footer */
.site-footer { padding: 44px 0; color: var(--muted-light); background: var(--night); }
.footer-layout { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 26px; font-size: .9rem; font-weight: 600; }
.site-footer nav a:hover { color: #fff; }
.site-footer small { font-size: .82rem; }

/* Reveal on scroll */
.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 1080px) {
  .hero-layout, .linetalk-grid, .principles-grid, .privacy-layout { grid-template-columns: 1fr; gap: 60px; }
  .hero-art { max-width: 720px; margin-left: 20px; }
  .flow { grid-template-columns: 1fr 1fr; }
  .flow li::after { display: none; }
  .felvero-cta { flex-direction: column; align-items: flex-start; }
  .grid { grid-template-columns: 1fr 1fr; }
  .section-head { grid-template-columns: 1fr; }
  .linetalk-visual { order: 2; min-height: 540px; max-width: 520px; width: 100%; margin: 0 auto; }
}

@media (max-width: 760px) {
  :root { --shell: calc(100% - 36px); }
  .menu-button { display: block; z-index: 2; }
  .main-nav { position: fixed; inset: 0; flex-direction: column; justify-content: center; gap: 28px; background: rgba(11, 15, 23, .97); font-size: 1.5rem; opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s; }
  .menu-open .main-nav { opacity: 1; visibility: visible; }
  .site-header.is-scrolled, .menu-open .site-header { backdrop-filter: none; -webkit-backdrop-filter: none; }
  .menu-open .site-header { background: transparent; }
  .hero { padding-top: 120px; }
  .hero-stats { gap: 22px; }
  .hero-stats dt { font-size: 2rem; }
  .hero-art { margin: 0; padding-bottom: 50px; }
  .hero-art .browser { transform: none; }
  .float-card { left: 0; bottom: 0; }
  .hero-phone { width: 30%; right: 0; bottom: 30px; }
  .felvero, .linetalk, .work, .principles, .privacy { padding: 90px 0; }
  .flow { grid-template-columns: 1fr; }
  .tabs button { padding: 9px 14px; font-size: .84rem; }
  .felvero-cta { padding: 26px 22px; }
  .grid { grid-template-columns: 1fr; }
  .card-wide { grid-column: auto; }
  .card-full { flex-direction: column; }
  .card-full .card-media { min-height: 220px; }
  .card-full .card-body { padding: 24px 26px 26px; }
  .pill { font-size: .78rem; }
  .card-wide .media-phone img { width: 46%; }
  .card-media { height: 250px; }
  .linetalk-visual { min-height: 440px; }
  .privacy-list { grid-template-columns: 1fr; }
  .contact-card { padding: 60px 24px; }
  .footer-layout { flex-direction: column; align-items: flex-start; }
}

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