/* ================= fonts ================= */
@font-face{font-family:"Paperlogy";font-weight:800;font-display:swap;src:url("https://cdn.jsdelivr.net/gh/projectnoonnu/2408-3@1.0/Paperlogy-8ExtraBold.woff2") format("woff2")}
@font-face{font-family:"Paperlogy";font-weight:600;font-display:swap;src:url("https://cdn.jsdelivr.net/gh/projectnoonnu/2408-3@1.0/Paperlogy-6SemiBold.woff2") format("woff2")}

/* ================= tokens ================= */
:root{
  --bg:#f4f3f0; --bg2:#eae9e5; --card:#fbfaf8; --shell:rgba(20,20,19,.045);
  --ink:#141413; --ink2:#5f5e59; --ink3:#9a9993;
  --line:rgba(20,20,19,.10); --accent:#e63f1c; --accent-ink:#fff; --accent-soft:#fbe3dc;
  --shadow:0 40px 90px -40px rgba(45,35,20,.35), 0 2px 6px rgba(45,35,20,.06);
  --r:22px; --ri:14px; --ease:cubic-bezier(.32,.72,0,1); --ease2:cubic-bezier(.16,1,.3,1);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0e0e0d; --bg2:#161615; --card:#1a1a19; --shell:rgba(255,255,255,.05);
    --ink:#f1f0ec; --ink2:#a7a69f; --ink3:#6c6b65;
    --line:rgba(241,240,236,.12); --accent:#ff5a35; --accent-ink:#0e0e0d; --accent-soft:#3a1a12;
    --shadow:0 40px 90px -40px rgba(0,0,0,.9), 0 2px 6px rgba(0,0,0,.4);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0e0e0d; --bg2:#161615; --card:#1a1a19; --shell:rgba(255,255,255,.05);
  --ink:#f1f0ec; --ink2:#a7a69f; --ink3:#6c6b65;
  --line:rgba(241,240,236,.12); --accent:#ff5a35; --accent-ink:#0e0e0d; --accent-soft:#3a1a12;
  --shadow:0 40px 90px -40px rgba(0,0,0,.9), 0 2px 6px rgba(0,0,0,.4);
  color-scheme:dark;
}

/* ================= base ================= */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);color:var(--ink);
  font-family:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,system-ui,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  font-size:16px;line-height:1.6;letter-spacing:-.005em;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;word-break:keep-all;overflow-wrap:anywhere;
  transition:background .4s,color .4s;
}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
img{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--accent);color:var(--accent-ink)}
.wrap{width:100%;max-width:1360px;margin:0 auto;padding-left:clamp(16px,4vw,56px);padding-right:clamp(16px,4vw,56px)}

h1,h2,h3{font-family:"Paperlogy","Pretendard Variable",sans-serif;font-weight:800;letter-spacing:-.03em;line-height:1.08}
h2{font-size:clamp(32px,4.4vw,60px)}
h3{font-size:clamp(26px,3vw,42px)}
h4{font-size:clamp(17px,1.4vw,20px);font-weight:700;letter-spacing:-.02em}
.sec-head{margin-bottom:clamp(36px,5vw,64px)}
.sec-head p{margin-top:14px;color:var(--ink2);font-size:clamp(16px,1.2vw,19px);max-width:52ch}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink2);padding:6px 12px;border:1px solid var(--line);border-radius:999px;background:var(--card)}
.case-kicker{display:block;font-size:13px;color:var(--ink3);letter-spacing:.01em;margin-bottom:10px}
.case-one{margin-top:12px;color:var(--ink2);font-size:clamp(15px,1.15vw,18px);max-width:60ch}

/* reveal */
.rv{opacity:0;transform:translateY(26px);filter:blur(6px);transition:opacity .9s var(--ease2),transform 1s var(--ease2),filter .9s var(--ease2)}
.rv.in{opacity:1;transform:none;filter:none}

/* ================= nav (floating island) ================= */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;justify-content:center;padding:14px clamp(12px,3vw,40px) 0;pointer-events:none}
.nav-pill{
  pointer-events:auto;display:flex;align-items:center;gap:28px;height:56px;padding:0 10px 0 22px;border-radius:999px;
  background:color-mix(in srgb,var(--card) 82%,transparent);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(18px) saturate(1.4);backdrop-filter:blur(18px) saturate(1.4);
  box-shadow:0 10px 40px -20px rgba(0,0,0,.25);transition:transform .6s var(--ease),box-shadow .4s;
}
.nav.solid .nav-pill{box-shadow:0 14px 50px -20px rgba(0,0,0,.35)}
.nav-name{font-family:"Paperlogy",sans-serif;font-weight:800;font-size:18px;letter-spacing:-.02em}
.nav-links{display:flex;gap:22px;font-size:14.5px;color:var(--ink2)}
.nav-links a{position:relative;padding:4px 0;transition:color .25s}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--accent);transform:scaleX(0);transform-origin:right;transition:transform .4s var(--ease)}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{transform:scaleX(1);transform-origin:left}
.nav-right{display:flex;align-items:center;gap:10px}
.nav-mail{font-size:13.5px;color:var(--ink2);transition:color .25s;padding-right:4px}
.nav-mail:hover{color:var(--accent)}
.theme{width:36px;height:36px;border-radius:50%;background:var(--shell);display:grid;place-items:center;transition:transform .6s var(--ease),background .3s}
.theme:hover{transform:rotate(180deg);background:var(--accent-soft)}
.theme span{width:12px;height:12px;border-radius:50%;border:1.5px solid var(--ink);background:linear-gradient(90deg,var(--ink) 50%,transparent 50%)}

/* ================= buttons ================= */
.btn{
  display:inline-flex;align-items:center;gap:12px;height:54px;padding:0 6px 0 24px;border-radius:999px;
  background:var(--ink);color:var(--bg);font-weight:600;font-size:15.5px;white-space:nowrap;
  transition:transform .5s var(--ease),background .3s,color .3s;
}
.btn .arr{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.14);font-weight:600;font-style:normal;transition:transform .5s var(--ease),background .3s}
.btn:hover{background:var(--accent);color:var(--accent-ink)}
.btn:hover .arr{transform:translate(2px,-2px) scale(1.06);background:rgba(255,255,255,.22)}
.btn:active{transform:scale(.97)}
.btn.ghost{background:var(--shell);color:var(--ink)}
.btn.ghost .arr{background:var(--card)}
.btn.ghost:hover{background:var(--accent);color:var(--accent-ink)}
.btn.sm{height:46px;font-size:14.5px;padding-left:20px}
.btn.sm .arr{width:34px;height:34px}
.pill{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:999px;background:var(--shell);font-size:13.5px;color:var(--ink2);white-space:nowrap;transition:background .3s,color .3s}
.pill b{font-weight:600}
.pill:not(.muted):hover{background:var(--accent);color:var(--accent-ink)}
.pill.muted{color:var(--ink3)}

/* ================= hero ================= */
.hero{position:relative;min-height:100dvh;display:flex;align-items:center;padding:110px 0 60px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(24px,4vw,64px);align-items:center}
.hero-h{margin-top:26px;font-size:clamp(36px,5.6vw,84px);line-height:1.16;letter-spacing:-.035em}
.hl{display:block;margin:.02em 0}
.mk{
  display:inline;font-style:normal;padding:.06em .16em .04em;border-radius:.12em;
  -webkit-box-decoration-break:clone;box-decoration-break:clone;
  color:var(--ink);background-image:linear-gradient(var(--accent),var(--accent));background-repeat:no-repeat;background-size:0% 100%;
  transition:color .35s ease var(--d,0s);
}
.mk.in{background-size:100% 100%;color:#fff;animation:wipe .9s var(--ease) var(--d,0s) both}
@keyframes wipe{from{background-size:0% 100%}to{background-size:100% 100%}}
.hero-p{margin-top:clamp(22px,2.6vw,34px);font-size:clamp(16px,1.35vw,20px);color:var(--ink2);max-width:40ch;transition-delay:1s}
.hero-cta{margin-top:clamp(26px,3vw,40px);display:flex;gap:12px;flex-wrap:wrap;transition-delay:1.15s}

.strip-wrap{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:16px;height:min(82vh,760px);
  -webkit-mask-image:linear-gradient(to bottom,transparent,#000 12%,#000 88%,transparent);mask-image:linear-gradient(to bottom,transparent,#000 12%,#000 88%,transparent)}
.strip{overflow:hidden;height:100%}
.strip-track{display:flex;flex-direction:column;gap:16px;animation:up 46s linear infinite;will-change:transform}
.strip-b .strip-track{animation:down 54s linear infinite}
.strip-wrap:hover .strip-track{animation-play-state:paused}
@keyframes up{to{transform:translateY(-50%)}}
@keyframes down{from{transform:translateY(-50%)}to{transform:none}}
.shot{padding:6px;border-radius:var(--ri);background:var(--shell);border:1px solid var(--line);transition:transform .6s var(--ease),box-shadow .6s var(--ease)}
.shot img{width:100%;aspect-ratio:16/10;object-fit:cover;object-position:top;border-radius:calc(var(--ri) - 6px);background:var(--card)}
.shot.tall img{aspect-ratio:9/13}
.shot figcaption{font-size:12px;color:var(--ink3);padding:8px 6px 4px}
.shot:hover{transform:scale(1.03);box-shadow:var(--shadow)}

/* ================= numbers ================= */
.nums{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding-top:40px;padding-bottom:clamp(90px,11vw,160px);border-top:1px solid var(--line)}
.num b{display:block;font-family:"Paperlogy",sans-serif;font-weight:800;font-size:clamp(46px,5.6vw,84px);letter-spacing:-.04em;line-height:1;font-variant-numeric:tabular-nums}
.num span{display:block;margin-top:12px;font-size:14.5px;color:var(--ink2)}
.num:nth-child(2){transition-delay:.08s}.num:nth-child(3){transition-delay:.16s}.num:nth-child(4){transition-delay:.24s}

/* ================= process ================= */
.proc{padding-bottom:clamp(110px,13vw,190px)}
.proc h2{max-width:22ch}
.rail-line{position:relative;height:2px;margin:clamp(40px,5vw,64px) 0 28px;background:var(--line);overflow:visible}
.rail-line i{position:absolute;inset:0;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform 1.6s var(--ease2) .2s}
.rail-line.in i{transform:none}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:clamp(16px,2vw,32px)}
.step{position:relative;padding-top:18px}
.step::before{content:"";position:absolute;top:-35px;left:0;width:12px;height:12px;border-radius:50%;background:var(--bg);border:2px solid var(--accent);transform:scale(0);transition:transform .6s var(--ease2)}
.step.in::before{transform:none}
.step:nth-child(1){transition-delay:.3s}.step:nth-child(1)::before{transition-delay:.3s}
.step:nth-child(2){transition-delay:.55s}.step:nth-child(2)::before{transition-delay:.55s}
.step:nth-child(3){transition-delay:.8s}.step:nth-child(3)::before{transition-delay:.8s}
.step:nth-child(4){transition-delay:1.05s}.step:nth-child(4)::before{transition-delay:1.05s}
.step:nth-child(5){transition-delay:1.3s}.step:nth-child(5)::before{transition-delay:1.3s}
.step b{display:block;font-family:"Paperlogy",sans-serif;font-weight:800;font-size:clamp(18px,1.5vw,22px);letter-spacing:-.02em}
.step p{margin-top:10px;font-size:15px;color:var(--ink2);line-height:1.6}
.tags{display:inline-block;margin-top:12px;font-size:12px;color:var(--accent);padding:4px 10px;border-radius:999px;background:var(--accent-soft)}

/* ================= case studies (sticky stack) ================= */
.work{padding-bottom:clamp(30px,4vw,60px)}
.stack{position:relative}
.stack{display:flow-root}
.stack-end{height:26vh}
.case-wrap{position:sticky;top:calc(84px + var(--i) * 14px);margin-bottom:34vh}
.case-wrap:last-child{margin-bottom:0}
.case-wrap.static{position:static;margin-bottom:24px}
.case-wrap.static:last-child{margin-bottom:0}
.stack:has(.static) .stack-end{height:40px}
.case{padding:0}
.case-wrap > .case > *{}
.case-head,.case-body{background:var(--card)}
.case{border-radius:var(--r);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);overflow:hidden;
  padding:clamp(22px,2.4vw,34px) clamp(22px,3vw,44px);display:flex;flex-direction:column;gap:clamp(18px,2vw,26px)}
.case-head{display:flex;justify-content:space-between;align-items:flex-start;gap:24px}
.case-body{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:clamp(22px,3vw,48px);align-items:start}
.facts{display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,1.8vw,26px)}
.fact b{display:block;font-size:12.5px;letter-spacing:.06em;color:var(--accent);margin-bottom:8px}
.fact p{font-size:14px;color:var(--ink2);line-height:1.6}
.fact:nth-child(4) p{color:var(--ink)}
.visual{display:flex;flex-direction:column;gap:14px;min-width:0}
.bezel{padding:6px;border-radius:var(--ri);background:var(--shell);border:1px solid var(--line);overflow:hidden;transition:transform .7s var(--ease),box-shadow .7s var(--ease)}
.bezel img,.bezel video{width:100%;border-radius:calc(var(--ri) - 6px);background:var(--card);aspect-ratio:16/10;object-fit:cover;object-position:top}
.bezel:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.bezel.cap figcaption{font-size:12.5px;color:var(--ink3);padding:8px 6px 2px}
.marq{overflow:hidden;width:0;min-width:100%;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marq-track{display:flex;gap:10px;width:max-content;animation:marq 38s linear infinite}
.marq:hover .marq-track{animation-play-state:paused}
@keyframes marq{to{transform:translateX(-50%)}}
.marq span{flex:none;font-size:13px;padding:8px 14px;border-radius:999px;background:var(--ink);color:var(--bg)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips li{font-size:12.5px;padding:6px 12px;border-radius:999px;border:1px solid var(--line);color:var(--ink2);transition:transform .4s var(--ease),border-color .3s,color .3s}
.chips li:hover{transform:translateY(-2px);border-color:var(--accent);color:var(--accent)}

/* ================= team carousel ================= */
.team{padding-bottom:clamp(110px,13vw,190px)}
.team-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px}
.team-ctrl{display:flex;align-items:center;gap:8px;flex:none}
.ctl{height:44px;min-width:44px;padding:0 14px;border-radius:999px;background:var(--shell);font-size:15px;transition:background .3s,color .3s,transform .4s var(--ease)}
.ctl:hover{background:var(--ink);color:var(--bg)}
.ctl:active{transform:scale(.95)}
.ctl.wide{padding:0 18px;font-size:14px}
.dots{display:flex;gap:6px;padding:0 6px}
.dots i{width:8px;height:8px;border-radius:50%;background:var(--line);transition:background .3s,transform .4s var(--ease)}
.dots i.on{background:var(--accent);transform:scale(1.25)}
.rail-outer{padding:0 clamp(16px,4vw,56px)}
.rail{display:flex;gap:clamp(16px,2vw,28px);overflow-x:auto;scroll-snap-type:x mandatory;scroll-padding:0;scrollbar-width:none;max-width:1360px;margin:0 auto;padding-bottom:8px}
.rail::-webkit-scrollbar{display:none}
.slide{flex:0 0 100%;scroll-snap-align:start;display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(22px,3vw,48px);
  border-radius:var(--r);background:var(--card);border:1px solid var(--line);padding:clamp(24px,3vw,44px) clamp(22px,3vw,48px);align-items:start}
.did{display:grid;gap:14px;margin-top:22px}
.did li{font-size:14.5px;color:var(--ink2);line-height:1.65;padding-left:16px;position:relative}
.did li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.did li b{display:block;color:var(--ink);font-weight:700;margin-bottom:2px}
.slide-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.slide-vis{display:flex;flex-direction:column;gap:14px;min-width:0}
.slide-txt{min-width:0}
.duo{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.duo .bezel img{aspect-ratio:16/10}
.phones{flex-direction:row;gap:12px;align-items:start}
.phone{flex:1;padding:6px;border-radius:26px;background:var(--shell);border:1px solid var(--line);transition:transform .7s var(--ease),box-shadow .7s var(--ease)}
.phone img{width:100%;aspect-ratio:9/16;object-fit:cover;object-position:top;border-radius:20px;background:var(--card)}
.phone figcaption{font-size:12px;color:var(--ink3);text-align:center;padding:8px 4px 2px}
.phone:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.phone:nth-child(2){margin-top:28px}.phone:nth-child(4){margin-top:28px}
/* expanded state */
.rail.open{flex-direction:column;overflow:visible;scroll-snap-type:none}
.rail.open .slide{flex:none}

/* ================= lecture ================= */
.lecture{padding-bottom:clamp(110px,13vw,190px)}
.lec-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(24px,4vw,64px);align-items:start}
.lec-grid .sec-head{position:sticky;top:110px;margin:0}
.lec-list{border-top:1px solid var(--line)}
.lec{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"org role" "topic role";gap:4px 20px;align-items:center;padding:clamp(20px,2.2vw,30px) 0;border-bottom:1px solid var(--line);position:relative;transition:padding-left .5s var(--ease)}
.lec::before{content:"";position:absolute;left:0;top:50%;width:0;height:2px;background:var(--accent);transition:width .5s var(--ease)}
.lec:hover{padding-left:26px}
.lec:hover::before{width:14px}
.lec-org{grid-area:org;font-size:13.5px;color:var(--ink3)}
.lec-topic{grid-area:topic;font-family:"Paperlogy",sans-serif;font-weight:600;font-size:clamp(18px,1.6vw,24px);letter-spacing:-.02em;line-height:1.3}
.lec-role{grid-area:role;font-size:13px;color:var(--ink2);white-space:nowrap;padding:6px 12px;border-radius:999px;background:var(--shell);transition:background .3s,color .3s}
.lec:hover .lec-role{background:var(--accent);color:var(--accent-ink)}
.lec:nth-child(2){transition-delay:.06s}.lec:nth-child(3){transition-delay:.12s}.lec:nth-child(4){transition-delay:.18s}

/* ================= etc ================= */
.etc{padding-bottom:clamp(110px,13vw,190px)}
.etc-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:clamp(14px,1.8vw,24px)}
.etc-big{grid-column:1/8;grid-row:1/3;border-radius:var(--r);background:var(--card);border:1px solid var(--line);padding:clamp(24px,3vw,40px)}
.etc-big h3{font-size:clamp(28px,3.2vw,46px)}
.etc-big h3 b{color:var(--accent);font-variant-numeric:tabular-nums}
.etc-big p{margin-top:14px;color:var(--ink2);max-width:46ch}
.etc-big .chips{margin-top:24px}
.etc-col{grid-column:8/-1;border-radius:var(--r);background:var(--shell);padding:clamp(24px,3vw,40px);transition-delay:.08s}
.etc-col:last-child{transition-delay:.16s}
.etc-col p{margin-top:12px;color:var(--ink2);line-height:1.75}

/* ================= career ================= */
.career{padding-bottom:clamp(110px,13vw,190px)}
.cv{border-top:1px solid var(--line)}
.cv-row{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,5fr) minmax(0,4fr);gap:24px;padding:clamp(24px,2.6vw,36px) 0;border-bottom:1px solid var(--line);align-items:start}
.cv-when{font-variant-numeric:tabular-nums;color:var(--ink2);font-size:15px;padding-top:6px}
.cv-what{font-family:"Paperlogy",sans-serif;font-weight:600;font-size:clamp(20px,2vw,30px);letter-spacing:-.02em;line-height:1.25;color:var(--ink2)}
.cv-what b{color:var(--ink);font-weight:800}
.cv-note{color:var(--ink2);font-size:15px;padding-top:6px}
.cv-row:nth-child(2){transition-delay:.08s}

/* ================= contact ================= */
.contact{padding-bottom:clamp(60px,8vw,110px);display:flex;flex-direction:column;align-items:flex-start;gap:22px}
.contact-lead{font-size:clamp(17px,1.5vw,22px);color:var(--ink2)}
.big-mail{display:inline-block;font-family:"Paperlogy",sans-serif;font-weight:800;font-size:clamp(24px,4.4vw,62px);letter-spacing:-.04em;line-height:1.1;word-break:break-all}
.big-mail span{background-image:linear-gradient(var(--accent),var(--accent));background-repeat:no-repeat;background-size:0 .1em;background-position:0 94%;transition:background-size .7s var(--ease)}
.big-mail:hover span{background-size:100% .1em}
.contact-row{display:flex;gap:16px;align-items:center;font-size:clamp(16px,1.3vw,20px);color:var(--ink2)}
.contact-row a:hover{color:var(--ink)}
.copy{font-size:14px;padding:9px 16px;border-radius:999px;background:var(--shell);transition:background .3s,color .3s}
.copy:hover{background:var(--ink);color:var(--bg)}
.copy.done{background:var(--accent);color:var(--accent-ink)}

.foot{display:flex;justify-content:space-between;padding-top:24px;padding-bottom:36px;border-top:1px solid var(--line);font-size:14px;color:var(--ink2)}
.foot a:hover{color:var(--ink)}

/* ================= responsive ================= */
@media (max-width:1100px){
  .nav-links{display:none}
  .hero-grid{grid-template-columns:1fr}
  .strip-wrap{height:420px}
  .case-body{grid-template-columns:minmax(0,1fr)}
  .slide{grid-template-columns:minmax(0,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px 24px}
  .rail-line{display:none}
  .step{padding-top:0;border-top:2px solid var(--line)}
  .step::before{display:none}
  .step b{padding-top:14px}
  .lec-grid{grid-template-columns:1fr}
  .lec-grid .sec-head{position:static;margin-bottom:24px}
  .etc-big,.etc-col{grid-column:1/-1}
  .team-head{flex-direction:column;align-items:flex-start}
}
@media (max-width:640px){
  .nav-pill{gap:12px;padding-left:16px}
  .nav-mail{display:none}
  .hero{padding-top:96px}
  .hero-h{font-size:clamp(30px,9vw,44px)}
  .strip-wrap{height:340px;gap:10px}
  .nums{grid-template-columns:1fr 1fr;gap:28px 16px}
  .steps{grid-template-columns:1fr}
  .stack{padding:0 12px}
  .case-wrap{position:static;margin-bottom:16px}
  .case-wrap:last-child{margin-bottom:0}
  .case{min-height:0}
  .case-head{flex-direction:column}
  .facts{grid-template-columns:1fr}
  .duo{grid-template-columns:1fr}
  .phones{flex-wrap:wrap}
  .phone{flex:0 0 calc(50% - 6px)}
  .phone:nth-child(2),.phone:nth-child(4){margin-top:0}
  .lec{grid-template-columns:1fr;grid-template-areas:"org" "topic" "role"}
  .lec-role{justify-self:start;margin-top:8px}
  .cv-row{grid-template-columns:1fr;gap:8px}
  .contact-row{flex-wrap:wrap}
  .rail-outer{padding:0 16px}
}

/* ================= reduced motion ================= */
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .rv{opacity:1;transform:none;filter:none}
  .mk{background-size:100% 100%;color:#fff}
  .strip-track,.marq-track{animation:none}
  .rail-line i{transform:none}
  .step::before{transform:none}
}