/* ============================================================
   TOKENS — Alternating Dark / Light (scoped section themes)
   ------------------------------------------------------------
   One token vocabulary, two themes. :root holds the DARK theme
   (used by chrome: header/footer/mobile-cta, and by odd
   sections). Even sections re-declare the same tokens as a LIGHT
   theme, so every component (cards / text / buttons / tables /
   forms / badges) auto-adapts with no per-component overrides.
   Both backgrounds share a cool blue undertone, and section
   edges cross-fade, so dark↔light alternation reads smoothly.
   Selector names are unchanged — only values/scoping.
   ============================================================ */
:root{
  /* DARK theme (default · chrome + odd sections) */
  --bg:#0E1220; --bg-elev:#171C2B;
  --surface:rgba(255,255,255,.05); --surface-2:rgba(255,255,255,.08);
  --border:rgba(255,255,255,.11); --border-2:rgba(255,255,255,.18);
  --muted:rgba(255,255,255,.06); --grid:rgba(255,255,255,.05);
  --ink:#F5F7FB; --text:#D6DBE5; --sub:#94A0B2; --faint:#6B7585;
  --primary:#5B8DEF; --primary-strong:#3F73E3; --primary-deep:#3F73E3;
  --primary-soft:rgba(91,141,239,.14); --on-primary:#fff;
  --danger:#FCA5A5;
  /* hero / page-hero base — darkest near-black (page-local heroes reference this) */
  --hero-grad:#0A0B0E;
  /* 6 path 구분색 — bright on dark */
  --path-1:#5B8DEF; --path-2:#22D3EE; --path-3:#34D399;
  --path-4:#FBBF24; --path-5:#FB923C; --path-6:#F472B6;
  /* 4수준 램프 (dim → bright) */
  --lv-1:rgba(91,141,239,.22); --lv-2:#3F73E3; --lv-3:#5B8DEF; --lv-4:#9DBBFF;
  /* boundary colours used by the section cross-fades */
  --seam-dark:#0E1220; --seam-light:#DCE3EF; --seam-mid:color-mix(in oklab,#0E1220 50%,#DCE3EF); --footer-bg:#070809; --fade:clamp(56px,7vw,104px);
  /* rhythm */
  --header-h:64px;
  --wrap:1200px;
  --r-sm:10px; --r-md:16px; --r-lg:24px; --r-xl:32px;
  --pad-sec:clamp(56px,5.5vw,80px);
  /* shadows — deep on dark */
  --shadow-sm:0 1px 2px rgba(0,0,0,.5);
  --shadow-md:0 16px 40px -18px rgba(0,0,0,.78);
  --shadow-lg:0 30px 70px -28px rgba(0,0,0,.88);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR","Segoe UI",Roboto,"Helvetica Neue",Arial,system-ui,sans-serif;
}
/* ============================================================
   RESET / BASE
   ============================================================ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;background:var(--bg)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0; font-family:var(--font); color:var(--text); background:var(--bg);
  font-size:16px; line-height:1.65; letter-spacing:-.011em;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  overflow-x:hidden; word-break:keep-all; overflow-wrap:break-word;
}
/* ============================================================
   SECTION THEME SYSTEM — alternating dark / light
   ------------------------------------------------------------
   Odd sections inherit the :root DARK theme; even sections (not
   the CTA) switch the tokens to LIGHT. Each section paints its
   own --bg solid through the content zone, then fades — within
   its bottom padding only — into the NEXT section's bg, so the
   boundary colour matches on both sides (seamless cross-fade,
   no hard line). The hero is the darkest; the CTA banner is
   pinned dark (its markup is .on-dark); the last section melts
   into the dark footer.
   ============================================================ */
/* Symmetric cross-fade: every content section fades EQUALLY at top AND bottom
   into the mid seam, so the dark<->light transition band is identical above and
   below every boundary (no top/bottom asymmetry, no hard line). */
#main>section{
  color:var(--text);
  background:var(--bg); /* fallback if gradient color-space unsupported */
  background:linear-gradient(180deg in oklab,
    var(--seam-mid) 0, var(--bg) var(--fade),
    var(--bg) calc(100% - var(--fade)), var(--seam-mid) 100%);
}
/* even (light) sections — re-theme tokens only (background comes from the rule above) */
#main>section:nth-of-type(even){
  --bg:#DCE3EF; --bg-elev:#FFFFFF;
  --surface:#FFFFFF; --surface-2:#F3F6FC;
  --border:rgba(15,19,32,.12); --border-2:rgba(15,19,32,.22);
  --muted:#EDF1F8; --grid:rgba(15,19,32,.06);
  --ink:#0F1320; --text:#2C3340; --sub:#586273; --faint:#8A93A3;
  --primary:#2563EB; --primary-strong:#1E40AF; --primary-deep:#1E40AF;
  --primary-soft:rgba(37,99,235,.10); --on-primary:#fff; --danger:#DC2626;
  --path-1:#2563EB; --path-2:#0891B2; --path-3:#059669;
  --path-4:#D97706; --path-5:#EA580C; --path-6:#DB2777;
  --lv-1:rgba(37,99,235,.14); --lv-2:#60A5FA; --lv-3:#2563EB; --lv-4:#1E40AF;
  --shadow-sm:0 1px 2px rgba(15,19,32,.07);
  --shadow-md:0 14px 36px -18px rgba(15,19,32,.20);
  --shadow-lg:0 30px 60px -26px rgba(15,19,32,.26);
}
/* hero (first section) = darkest; top solid (page top), only bottom fades */
#main>section:nth-of-type(1){
  --bg:#0A0B0E;
  background:var(--bg);
  background:linear-gradient(180deg in oklab,var(--bg) 0,var(--bg) calc(100% - var(--fade)),var(--seam-mid) 100%);
}
/* CTA now JOINS the alternating rhythm: it's the section AFTER the last content
   section, so nth-of-type gives it the OPPOSITE theme (dark CTA on home/faculty,
   light CTA on the rest). The pre-CTA section keeps the base symmetric cross-fade
   (bottom → seam-mid) and the CTA's own top fades FROM seam-mid (rule below), so the
   join is seamless no matter the page length or which theme the CTA lands on. */
/* last section = the CTA on every page: top fades from the neighbour (seam-mid),
   bottom melts into the dark footer — works whether the CTA is light or dark. */
#main>section:last-of-type{
  background:var(--bg);
  background:linear-gradient(180deg in oklab,
    var(--seam-mid) 0, var(--bg) var(--fade),
    var(--bg) calc(100% - var(--fade)), var(--footer-bg) 100%);
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
h1,h2,h3,h4{color:var(--ink)}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
img,svg{display:block;max-width:100%}
:focus-visible{outline:2.5px solid var(--primary);outline-offset:3px;border-radius:4px}
.on-dark :focus-visible,.hero :focus-visible{outline-color:#9DBBFF}
::selection{background:var(--primary);color:#fff}
.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:var(--primary);color:var(--on-primary);padding:.7em 1.2em;border-radius:0 0 var(--r-sm) 0;font-weight:600}
.skip-link:focus{left:0}
.wrap{width:min(var(--wrap),92vw);margin-inline:auto}
section[id],[id]{scroll-margin-top:calc(var(--header-h) + 14px)}
.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}
/* ============================================================
   REVEAL
   ============================================================ */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease) var(--d,0s),transform .8s var(--ease) var(--d,0s)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1!important;transform:none!important;transition:none}}
/* ============================================================
   BUTTONS
   ============================================================ */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.55em;
  font-weight:600;font-size:.95rem;line-height:1;padding:.92em 1.5em;border-radius:999px;
  border:1.6px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .25s var(--ease),background .2s,color .2s,border-color .2s}
.btn svg{width:1.05em;height:1.05em}
.btn-primary{background:var(--primary);color:var(--on-primary);box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--primary-strong);transform:translateY(-2px);box-shadow:0 14px 32px -12px color-mix(in srgb,var(--primary) 55%,transparent)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--border-2)}
.btn-ghost:hover{border-color:var(--ink);background:var(--surface)}
.btn-lg{font-size:1.02rem;padding:1.05em 1.85em}
.on-dark .btn-ghost,.btn-ghost.on-dark{color:#fff;border-color:rgba(255,255,255,.45)}
.on-dark .btn-ghost:hover,.btn-ghost.on-dark:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn .arr{transition:transform .25s var(--ease)}
.btn:hover .arr{transform:translateX(3px)}
/* ============================================================
   HEADER (pinned dark chrome)
   ============================================================ */
.site-header{position:fixed;inset:0 0 auto 0;z-index:100;height:var(--header-h);
  display:flex;align-items:center;
  background:rgba(10,11,14,.72);backdrop-filter:saturate(1.5) blur(14px);-webkit-backdrop-filter:saturate(1.5) blur(14px);
  border-bottom:1px solid transparent;transition:border-color .3s,background .3s,box-shadow .3s}
.site-header.scrolled{background:rgba(10,11,14,.85);border-bottom-color:rgba(255,255,255,.11);box-shadow:0 1px 0 rgba(0,0,0,.4),0 10px 30px -18px rgba(0,0,0,.8)}
.header-inner{width:min(var(--wrap),94vw);margin-inline:auto;display:flex;align-items:center;gap:1.25rem}
.wordmark{display:flex;align-items:baseline;gap:.5rem;flex:0 0 auto;color:#F5F7FB}
.wordmark .wm-main{font-weight:800;font-size:1.06rem;letter-spacing:-.03em}
.wordmark .wm-dot{width:5px;height:5px;border-radius:50%;background:#5B8DEF;align-self:center;flex:0 0 auto;box-shadow:0 0 10px rgba(91,141,239,.7)}
.wordmark .wm-sub{font-size:.72rem;color:#94A0B2;font-weight:600;letter-spacing:.01em}
.nav{display:flex;align-items:center;gap:.15rem;margin-left:.5rem;flex:1 1 auto}
.nav a{position:relative;font-size:.86rem;font-weight:500;color:#94A0B2;padding:.5em .66em;border-radius:8px;transition:color .2s,background .2s}
.nav a::after{content:"";position:absolute;left:.66em;right:.66em;bottom:.28em;height:2px;background:#5B8DEF;transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);border-radius:2px}
.nav a:hover{color:#F5F7FB}
.nav a:hover::after{transform:scaleX(1)}
/* common-header active state (multi-page nav · mark current link with aria-current="page") */
.nav a[aria-current="page"]{color:#F5F7FB;font-weight:700}
.nav a[aria-current="page"]::after{transform:scaleX(1)}
/* drawer-only CTA — hidden on desktop (header-cta covers it); shown only inside the ≤1024px drawer */
.nav .drawer-cta{display:none}
.header-tools{display:flex;align-items:center;gap:.7rem;flex:0 0 auto}
.lang-toggle{display:inline-flex;border:1px solid rgba(255,255,255,.11);border-radius:999px;padding:2px;background:rgba(255,255,255,.05)}
.lang-toggle button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:44px;font-size:.74rem;font-weight:700;padding:.34em .7em;border-radius:999px;color:#94A0B2;letter-spacing:.02em;transition:color .2s,background .2s,box-shadow .2s}
.lang-toggle button[aria-pressed="true"]{background:rgba(255,255,255,.10);color:#F5F7FB;box-shadow:var(--shadow-sm)}
.header-cta{display:inline-flex}
.hamburger{display:none;width:44px;height:44px;border-radius:10px;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.11)}
.hamburger span{position:relative;width:18px;height:2px;background:#F5F7FB;border-radius:2px;transition:transform .3s var(--ease),opacity .2s}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#F5F7FB;border-radius:2px;transition:transform .3s var(--ease)}
.hamburger span::before{top:-6px}.hamburger span::after{top:6px}
.nav-open .hamburger span{background:transparent}
.nav-open .hamburger span::before{transform:translateY(6px) rotate(45deg)}
.nav-open .hamburger span::after{transform:translateY(-6px) rotate(-45deg)}
/* mobile bottom CTA bar (pinned dark) */
.mobile-cta-bar{position:fixed;left:0;right:0;bottom:0;z-index:95;display:none;gap:.6rem;padding:.6rem .8rem calc(.6rem + env(safe-area-inset-bottom));
  background:rgba(10,11,14,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-top:1px solid rgba(255,255,255,.11)}
.mobile-cta-bar .btn{flex:1}
/* ============================================================
   HERO — always dark (first section)
   ============================================================ */
.hero{position:relative;background:transparent;color:#fff;overflow:hidden;
  min-height:clamp(620px,92vh,940px);display:flex;align-items:center;
  padding-top:calc(var(--header-h) + clamp(36px,6vh,80px));padding-bottom:clamp(64px,9vh,120px)}
.hero-bg{position:absolute;inset:0;z-index:1;pointer-events:none}
.hero-bg svg{position:absolute;top:0;right:0;height:100%;width:min(70%,920px)}
.hero-glow{position:absolute;z-index:0;top:18%;right:6%;width:min(60vw,720px);aspect-ratio:1;
  background:radial-gradient(circle at 50% 50%,rgba(91,141,239,.40),rgba(91,141,239,.12) 38%,transparent 66%);
  filter:blur(8px);pointer-events:none}
.hero-inner{position:relative;z-index:3;width:min(var(--wrap),92vw);margin-inline:auto;max-width:none}
.hero-copy{max-width:46rem}
.eyebrow{display:inline-flex;align-items:center;gap:.6rem;font-size:.82rem;font-weight:600;letter-spacing:.01em;
  color:#cbd5e1;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  padding:.5em 1em;border-radius:999px;margin-bottom:1.6rem;backdrop-filter:blur(4px)}
.eyebrow .pin{width:6px;height:6px;border-radius:50%;background:#22D3EE;box-shadow:0 0 0 4px rgba(34,211,238,.22)}
.eyebrow b{color:#fff;font-weight:700}
/* even (light) sections — eyebrow chip adapts to the light theme (CTA included) */
#main>section:nth-of-type(even) .eyebrow{color:var(--sub);background:var(--surface);border-color:var(--border)}
#main>section:nth-of-type(even) .eyebrow b{color:var(--ink)}
.hero-title{font-size:clamp(2.05rem,1.1rem + 4.1vw,4rem);font-weight:800;line-height:1.13;letter-spacing:-.035em;margin-bottom:1.4rem;text-wrap:balance;color:#fff}
.hero-title .accent{background:linear-gradient(100deg,#60A5FA,#22D3EE 55%,#F472B6);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:clamp(1.02rem,.95rem + .5vw,1.28rem);color:#cbd5e1;max-width:40rem;line-height:1.6;margin-bottom:2.3rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:.85rem;margin-bottom:1.5rem}
.hero-trust{display:inline-flex;align-items:center;gap:.6rem;font-size:.92rem;color:#e2e8f0;font-weight:500}
.hero-trust .chk{flex:0 0 auto;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;
  background:rgba(52,211,153,.18);color:#34D399;border:1px solid rgba(52,211,153,.4)}
.hero-trust .chk svg{width:12px;height:12px}
.hero-trust b{color:#fff;font-weight:700}
.scroll-cue{position:absolute;z-index:4;left:50%;bottom:1.6rem;transform:translateX(-50%);
  display:inline-flex;align-items:center;gap:.5rem;font-size:.8rem;color:#94a3b8;font-weight:600;letter-spacing:.02em}
.scroll-cue .dn{width:26px;height:26px;border-radius:50%;border:1px solid rgba(255,255,255,.22);display:grid;place-items:center}
/* hero ambient route map — DYNAMIC: main line draws on, pulses travel the lines, nodes breathe */
.hero-bg .h-line{fill:none;stroke-linecap:round;stroke-linejoin:round}
.hero-bg .h-draw{stroke-dasharray:none;stroke-dashoffset:0}
.hero-bg .h-node-ring{transform-box:fill-box;transform-origin:center;opacity:1}
.hero-bg .h-train{display:block;offset-rotate:0deg}
@media (prefers-reduced-motion:no-preference){
  .hero-bg #heroMain{stroke-dasharray:1700;stroke-dashoffset:1700;animation:hMainDraw 1.9s cubic-bezier(.4,0,.2,1) .15s forwards}
  @keyframes hMainDraw{to{stroke-dashoffset:0}}
  .hero-bg .h-train{animation:hTrain 5s linear 1.4s infinite}
  .hero-bg .h-train2{animation:hTrain 6.6s linear 2.4s infinite}
  @keyframes hTrain{0%{offset-distance:0%;opacity:0}7%{opacity:1}90%{opacity:1}100%{offset-distance:100%;opacity:0}}
  .hero-bg .h-node-ring{animation:hNode 2.8s ease-in-out infinite}
  @keyframes hNode{0%,100%{opacity:.45;transform:scale(1)}50%{opacity:1;transform:scale(1.22)}}
}
/* ============================================================
   SECTION HEADER SYSTEM
   ============================================================ */
.sec-head{max-width:44rem;margin-bottom:clamp(2rem,3.5vw,3rem)}
.sec-eyebrow{display:inline-block;font-size:.8rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--primary);margin-bottom:.8rem}
.sec-title{font-size:clamp(1.6rem,1.1rem + 1.8vw,2.4rem);font-weight:800;letter-spacing:-.025em;line-height:1.2;color:var(--ink)}
.sec-sub{margin-top:.7rem;color:var(--sub);font-size:clamp(1rem,.97rem + .2vw,1.1rem);line-height:1.6}
/* ============================================================
   IDENTITY
   ============================================================ */
.identity{padding-block:var(--pad-sec);position:relative}
.identity .wrap{display:grid;gap:clamp(2rem,4vw,3.5rem)}
.evolve{display:grid;grid-template-columns:1fr auto 1fr;align-items:stretch;gap:clamp(1rem,2.5vw,2rem)}
.evolve-card{border:1px solid var(--border);border-radius:var(--r-lg);padding:clamp(1.4rem,2.5vw,2rem);position:relative;overflow:hidden;background:var(--surface)}
.evolve-card .era{font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--sub)}
.evolve-card .ver{font-size:1.35rem;font-weight:800;margin:.5rem 0 .7rem;letter-spacing:-.02em;color:var(--ink)}
.evolve-card .ev-desc{color:var(--sub);font-size:1rem}
.evolve-card.past{background:var(--muted)}
.evolve-card.past .ver{color:var(--sub)}
.evolve-card.future{border-color:color-mix(in srgb,var(--primary) 35%,transparent);color:var(--ink);background:linear-gradient(160deg,var(--primary-soft),var(--surface));box-shadow:var(--shadow-md)}
.evolve-card.future .era{color:var(--primary)}
.evolve-card.future .ev-desc{color:var(--sub)}
.evolve-card.future .tag{display:inline-block;margin-top:1rem;font-size:.76rem;font-weight:700;color:var(--on-primary);background:var(--primary);border:1px solid transparent;padding:.4em .8em;border-radius:999px}
.evolve-arrow{display:grid;place-items:center;color:var(--primary)}
.evolve-arrow svg{width:42px;height:42px}
.evolve-arrow .lbl{font-size:.72rem;font-weight:700;color:var(--sub);margin-top:.3rem;letter-spacing:.04em}
.id-statement{font-size:clamp(1.3rem,.9rem + 1.6vw,2rem);font-weight:700;line-height:1.4;letter-spacing:-.02em;max-width:30ch;text-wrap:balance;color:var(--ink)}
.id-statement .hl{color:var(--primary)}
.fusion{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(1.5rem,3vw,3rem);align-items:center}
.fusion-copy h3{font-size:1.15rem;font-weight:700;margin-bottom:.6rem;color:var(--ink)}
.fusion-copy p{color:var(--sub)}
.glocal{margin-top:1.2rem;display:flex;gap:.8rem;align-items:flex-start;background:var(--primary-soft);border:1px solid color-mix(in srgb,var(--primary) 30%,transparent);border-radius:var(--r-md);padding:1rem 1.15rem}
.glocal .ic{flex:0 0 auto;width:34px;height:34px;border-radius:10px;background:var(--primary);color:var(--on-primary);display:grid;place-items:center}
.glocal .ic svg{width:18px;height:18px}
.glocal p{color:var(--text);font-size:.95rem;font-weight:500;line-height:1.5}
.glocal b{font-weight:800;color:var(--ink)}
/* venn / domains */
.venn{position:relative;aspect-ratio:1/.86;width:100%;max-width:440px;margin-inline:auto}
.venn svg{width:100%;height:100%;overflow:visible}
.venn svg g{mix-blend-mode:normal!important}
.venn .vlabel{color:var(--ink)!important;text-shadow:0 1px 8px var(--bg),0 0 4px var(--bg)}
.venn .vlabel{position:absolute;font-weight:700;font-size:1.25rem;transform:translate(-50%,-50%);text-align:center;pointer-events:none;line-height:1.1}
.venn-core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);text-align:center;z-index:3}
.venn-core .k{font-size:.94rem;font-weight:800;letter-spacing:.1em;color:var(--primary)}
.venn-core .n{font-size:1.16rem;font-weight:700;color:var(--ink)}
/* ============================================================
   FACTS
   ============================================================ */
.facts{padding-block:var(--pad-sec)}
.facts-legend{display:inline-flex;align-items:center;gap:.5rem;font-size:.82rem;font-weight:600;color:var(--sub);margin-top:.6rem}
.facts-legend .ln{width:24px;height:3px;border-radius:3px;background:linear-gradient(90deg,var(--primary),var(--primary-strong))}
.facts-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(1rem,1.8vw,1.5rem);margin-top:clamp(2rem,3.5vw,3rem)}
.fact{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:1.6rem 1.5rem 1.4rem;
  display:flex;flex-direction:column;gap:.5rem;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s;overflow:hidden}
.fact::before{content:"";position:absolute;inset:0 auto 0 0;width:4px;background:var(--fc,var(--primary));transform:scaleY(0);transform-origin:top;transition:transform .35s var(--ease)}
.fact:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--border-2)}
.fact:hover::before{transform:scaleY(1)}
.fact-top{display:flex;align-items:baseline;gap:.5rem}
.fact-val{font-size:clamp(2.4rem,1.6rem + 2.4vw,3.4rem);font-weight:800;line-height:.9;letter-spacing:-.04em;
  background:linear-gradient(160deg,var(--fc,var(--primary)),color-mix(in srgb,var(--fc,var(--primary)) 55%,var(--ink)));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.fact-unit{font-size:.86rem;font-weight:700;color:var(--sub);letter-spacing:.02em}
.fact h3{font-size:1.02rem;font-weight:700;letter-spacing:-.01em;margin-top:.3rem;color:var(--ink)}
.fact p{font-size:.9rem;color:var(--sub);line-height:1.55}
.fact .deep{margin-top:auto;padding-top:.7rem;font-size:.82rem;font-weight:700;color:var(--primary);display:inline-flex;align-items:center;gap:.3rem;opacity:.9;transition:opacity .2s,gap .2s}
.fact:hover .deep{opacity:1;gap:.5rem}
/* ============================================================
   CAREERS + EXPLORER (SIGNATURE)
   ============================================================ */
.explorer{padding-block:var(--pad-sec);position:relative}
.exp-eyebrow{display:inline-flex;align-items:center;gap:.55rem;font-size:.82rem;font-weight:700;letter-spacing:.01em;
  color:var(--primary);background:var(--primary-soft);border:1px solid color-mix(in srgb,var(--primary) 30%,transparent);padding:.5em 1em;border-radius:999px;margin-bottom:1.1rem}
.exp-eyebrow .spark{width:15px;height:15px}
/* 4 직군 result cards */
.career-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(.8rem,1.5vw,1.2rem);margin-bottom:clamp(2.2rem,4vw,3.4rem)}
.career-card{border:1px solid var(--border);border-radius:var(--r-md);padding:1.2rem 1.15rem;background:var(--surface);
  display:flex;flex-direction:column;gap:.7rem;cursor:pointer;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s}
.career-card:hover,.career-card.lit{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--cc)}
.career-card .cc-top{display:flex;align-items:center;justify-content:space-between;gap:.5rem}
.career-card .cc-name{font-weight:800;font-size:1.06rem;letter-spacing:-.01em;color:var(--ink)}
.career-card .cc-dot{width:10px;height:10px;border-radius:50%;background:var(--cc);box-shadow:0 0 0 4px color-mix(in srgb,var(--cc) 22%,transparent)}
.career-card .cc-track{font-size:.74rem;font-weight:700;color:var(--sub);background:var(--muted);padding:.28em .6em;border-radius:6px;align-self:flex-start}
.career-card .cc-jobs{display:flex;flex-wrap:wrap;gap:.4rem}
.career-card .cc-jobs span{font-size:.78rem;font-weight:600;color:var(--sub);background:var(--muted);border:1px solid var(--border);padding:.3em .6em;border-radius:999px}
.career-card .cc-hint{margin-top:auto;font-size:.76rem;font-weight:700;color:color-mix(in srgb,var(--cc) 38%,var(--ink));display:inline-flex;align-items:center;gap:.3rem;opacity:0;transform:translateY(4px);transition:opacity .2s,transform .2s}
.career-card:hover .cc-hint,.career-card.lit .cc-hint{opacity:1;transform:none}
/* explorer shell */
.explorer-shell{display:grid;grid-template-columns:300px 1fr;gap:clamp(1.2rem,2.2vw,1.8rem);align-items:start;margin-top:1.6rem}
.exp-aside{position:sticky;top:calc(var(--header-h) + 16px);display:flex;flex-direction:column;gap:.5rem}
.exp-aside .ea-title{font-size:.76rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--sub);padding:0 .2rem .3rem}
.path-tabs{display:flex;flex-direction:column;gap:.4rem}
.path-tab{display:flex;align-items:center;gap:.7rem;text-align:left;padding:.7rem .85rem;border-radius:var(--r-md);
  border:1.5px solid var(--border);background:var(--surface);transition:border-color .2s,background .2s,transform .15s,box-shadow .2s;width:100%}
.path-tab:hover{border-color:var(--pc);transform:translateX(2px)}
.path-tab[aria-selected="true"]{border-color:var(--pc);background:color-mix(in srgb,var(--pc) 16%,transparent);box-shadow:0 0 0 1px var(--pc) inset}
.path-tab .pt-chip{flex:0 0 auto;width:14px;height:14px;border-radius:50%;background:var(--pc);position:relative;box-shadow:0 0 8px color-mix(in srgb,var(--pc) 60%,transparent)}
.path-tab[aria-selected="true"] .pt-chip::after{content:"";position:absolute;inset:-5px;border:2px solid var(--pc);border-radius:50%;opacity:.5}
.path-tab .pt-body{display:flex;flex-direction:column;gap:.12rem;min-width:0}
.path-tab .pt-name{font-weight:700;font-size:.92rem;letter-spacing:-.01em;line-height:1.25;color:var(--ink)}
.path-tab .pt-meta{font-size:.74rem;color:var(--sub);font-weight:600}
.path-tab .pt-num{margin-left:auto;font-size:.72rem;font-weight:800;color:var(--sub);background:var(--muted);width:22px;height:22px;border-radius:6px;display:grid;place-items:center;flex:0 0 auto}
.path-tab[aria-selected="true"] .pt-num{background:var(--pc);color:var(--bg)}
.exp-controls{display:flex;gap:.5rem;margin-top:.4rem}
.exp-reset{font-size:.8rem;font-weight:700;color:var(--sub);border:1.5px solid var(--border);border-radius:999px;padding:.5em 1em;transition:border-color .2s,color .2s}
.exp-reset:hover{border-color:var(--ink);color:var(--ink)}
.exp-live{font-size:.78rem;color:var(--sub);padding:.2rem .2rem;min-height:1.2em}
/* map */
.map-col{min-width:0}
.map-wrap{position:relative;background:
  linear-gradient(var(--grid) 1px,transparent 1px) 0 0/100% 40px,
  linear-gradient(90deg,var(--grid) 1px,transparent 1px) 0 0/40px 100%,
  var(--surface);
  border:1px solid var(--border);border-radius:var(--r-lg);padding:.8rem;overflow:hidden;box-shadow:var(--shadow-sm)}
.metro-svg{width:100%;height:auto;display:block;overflow:visible}
.path-group{transition:opacity .35s var(--ease),filter .35s var(--ease)}
.path-line{fill:none;stroke:var(--gc);stroke-width:6;stroke-linecap:round;stroke-linejoin:round}
.metro-svg.has-selection .path-group{opacity:.15;filter:saturate(.12)}
.metro-svg.has-selection .path-group.is-active{opacity:1;filter:none}
.metro-svg.has-selection .path-group.is-active .path-line{stroke-width:8;filter:drop-shadow(0 1px 7px color-mix(in srgb,var(--gc) 70%,transparent))}
.metro-svg.hovering:not(.has-selection) .path-group{opacity:.15;filter:saturate(.12)}
.metro-svg.hovering:not(.has-selection) .path-group.is-hover{opacity:1;filter:none}
.metro-svg.hovering:not(.has-selection) .path-group.is-hover .path-line{stroke-width:8;filter:drop-shadow(0 1px 7px color-mix(in srgb,var(--gc) 70%,transparent))}
.metro-svg.has-selection .path-group.is-active.is-preview,.metro-svg.has-selection .path-group.is-preview{opacity:.55;filter:saturate(.55)}
.path-line.draw{stroke-dasharray:var(--len);stroke-dashoffset:var(--len)}
.metro-svg.drawn .path-line.draw{stroke-dashoffset:0}
@media (prefers-reduced-motion:no-preference){
  .metro-svg.drawn .path-line.draw{transition:stroke-dashoffset 1.25s var(--ease) var(--dly,0s)}
}
.st-dot-outer{fill:var(--bg-elev);stroke:var(--gc);stroke-width:2.5}
.st-dot-inner{fill:var(--gc)}
.st-hit{fill:transparent;cursor:pointer}
.io-ring-out{fill:var(--bg-elev);stroke:var(--ink);stroke-width:3}
.io-ring-in{fill:var(--ink)}
.io-label{font-size:14px;font-weight:800;fill:var(--ink);paint-order:stroke;stroke:var(--bg);stroke-width:3.5px;stroke-linejoin:round}
.io-tag{font-size:11px;font-weight:700;fill:var(--sub);paint-order:stroke;stroke:var(--bg);stroke-width:3px}
.st-label{font-size:13px;font-weight:600;fill:var(--ink);paint-order:stroke;stroke:var(--bg);stroke-width:3px;stroke-linejoin:round}
.dest-pill rect{stroke:rgba(255,255,255,.55);stroke-width:1}
.dest-name{font-size:15px;font-weight:800}
.dest-sub{font-size:11px;font-weight:600;opacity:.9}
.metro-pulse{fill:var(--ink);stroke:var(--gc);stroke-width:3;filter:drop-shadow(0 0 6px var(--gc));opacity:0}
.metro-legendline{display:flex;flex-wrap:wrap;gap:.3rem .9rem;margin-top:.7rem;padding:0 .3rem;font-size:.76rem;color:var(--sub)}
.metro-legendline .mll{display:inline-flex;align-items:center;gap:.35rem;font-weight:600}
.metro-legendline .mll i{width:16px;height:4px;border-radius:3px;background:var(--lc)}
.map-hint{display:none;align-items:center;gap:.4rem;justify-content:center;font-size:.76rem;color:var(--sub);font-weight:600;margin-top:.5rem}
/* detail panel */
.detail-panel{border:1px solid var(--border);border-radius:var(--r-lg);padding:clamp(1.2rem,2.2vw,1.7rem);margin-top:1.1rem;background:var(--surface);box-shadow:var(--shadow-sm)}
.panel-hint{display:flex;align-items:center;gap:.7rem;color:var(--sub);font-size:.95rem}
.panel-hint .ph-ic{flex:0 0 auto;width:36px;height:36px;border-radius:10px;background:var(--muted);display:grid;place-items:center;color:var(--primary)}
.detail-body[hidden]{display:none}
.dp-head{display:flex;align-items:flex-start;gap:.8rem;flex-wrap:wrap;border-bottom:1px solid var(--border);padding-bottom:1rem;margin-bottom:1rem}
.dp-dot{flex:0 0 auto;width:16px;height:16px;border-radius:50%;background:var(--dpc);margin-top:.35rem;box-shadow:0 0 0 4px color-mix(in srgb,var(--dpc) 22%,transparent)}
.dp-titles{flex:1 1 240px;min-width:0}
.dp-name{font-size:1.25rem;font-weight:800;letter-spacing:-.02em;line-height:1.2;color:var(--ink)}
.dp-meta{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.5rem}
.dp-badge{font-size:.76rem;font-weight:700;padding:.32em .7em;border-radius:999px;background:var(--muted);color:var(--sub)}
.dp-badge.grp{background:color-mix(in srgb,var(--dpc) 20%,transparent);color:color-mix(in srgb,var(--dpc) 42%,var(--ink))}
.dp-badge a{color:inherit;text-decoration:underline;text-underline-offset:2px}
.dp-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:1.3rem}
.dp-route h4,.dp-jobs h4{font-size:.78rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--sub);margin-bottom:.7rem}
.dp-route ol{counter-reset:st;display:flex;flex-direction:column;gap:0}
.dp-route li{position:relative;counter-increment:st;padding:.42rem 0 .42rem 2.1rem;font-size:.92rem;font-weight:600;color:var(--text)}
.dp-route li::before{content:counter(st);position:absolute;left:0;top:.42rem;width:1.5rem;height:1.5rem;border-radius:50%;background:color-mix(in srgb,var(--dpc) 22%,transparent);color:color-mix(in srgb,var(--dpc) 45%,var(--ink));font-size:.74rem;font-weight:800;display:grid;place-items:center}
.dp-route li::after{content:"";position:absolute;left:.73rem;top:1.9rem;bottom:-.1rem;width:2px;background:color-mix(in srgb,var(--dpc) 35%,transparent)}
.dp-route li:last-child::after{display:none}
.dp-route li.term::before{content:"";background:var(--dpc);box-shadow:0 0 0 3px color-mix(in srgb,var(--dpc) 24%,transparent)}
.dp-route li.term{font-weight:800;color:color-mix(in srgb,var(--dpc) 42%,var(--ink))}
.dp-jobs ul{display:flex;flex-direction:column;gap:.45rem}
.dp-jobs li{display:flex;align-items:center;gap:.5rem;font-size:.9rem;font-weight:600;color:var(--text)}
.dp-jobs li svg{flex:0 0 auto;width:15px;height:15px;color:var(--dpc)}
.dp-cta{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.3rem;padding-top:1.2rem;border-top:1px solid var(--border)}
.dp-cta .btn{font-size:.88rem;padding:.78em 1.3em}
/* ============================================================
   HIGH TECH x HIGH TOUCH
   ============================================================ */
.hightech{padding-block:var(--pad-sec)}
.ht-top{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,4vw,3.5rem);align-items:center;margin-bottom:clamp(2.4rem,4vw,3.6rem)}
.ht-copy h3{font-size:clamp(1.4rem,1rem + 1.6vw,2.1rem);font-weight:800;letter-spacing:-.02em;line-height:1.25;margin-bottom:.9rem;color:var(--ink)}
.ht-copy h3 .x{color:var(--primary);font-weight:900;margin-inline:.15em}
.ht-copy p{color:var(--sub);max-width:42ch}
.ht-pair{display:flex;gap:1rem;margin-top:1.4rem}
.ht-pill{flex:1;border:1px solid var(--border);background:var(--surface);border-radius:var(--r-md);padding:1rem 1.1rem}
.ht-pill .hk{font-size:.78rem;font-weight:800;letter-spacing:.04em;display:inline-flex;align-items:center;gap:.4rem}
.ht-pill.tech .hk{color:var(--primary)}.ht-pill.touch .hk{color:var(--path-6)}
.ht-pill .hk i{width:8px;height:8px;border-radius:50%;background:currentColor}
.ht-pill p{font-size:.86rem;color:var(--sub);margin-top:.4rem}
.infinity{position:relative;display:grid;place-items:center}
.infinity svg{width:100%;max-width:420px;height:auto;overflow:visible}
.inf-path{fill:none;stroke-linecap:round}
.inf-path:not(.inf-flow){stroke:var(--border-2)}
.inf-flow{stroke-dasharray:none}
.inf-dot{display:none}
.inf-cap{font-size:13px;font-weight:800}
.systems{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(.8rem,1.5vw,1.2rem);position:relative}
.systems::before{content:"";position:absolute;left:6%;right:6%;top:34px;height:3px;background:repeating-linear-gradient(90deg,var(--primary) 0 18px,transparent 18px 30px);opacity:.3;z-index:0}
.sys-card{position:relative;z-index:1;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);padding:1.3rem 1.1rem;text-align:center;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s}
.sys-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--border-2)}
.sys-no{width:38px;height:38px;border-radius:50%;background:var(--primary);color:var(--on-primary);font-weight:800;display:grid;place-items:center;margin:0 auto .8rem;box-shadow:0 0 0 5px var(--bg-elev),0 0 0 6px var(--border-2),0 0 18px color-mix(in srgb,var(--primary) 45%,transparent)}
.sys-card h4{font-size:1rem;font-weight:700;margin-bottom:.3rem;color:var(--ink)}
.sys-card p{font-size:.84rem;color:var(--sub)}
.ht-more{margin-top:2rem;text-align:center}
/* ============================================================
   NEWS
   ============================================================ */
.news{padding-block:var(--pad-sec)}
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1rem,2vw,1.5rem);margin-top:clamp(1.8rem,3vw,2.6rem)}
.news-card{display:flex;flex-direction:column;gap:.7rem;border:1px solid var(--border);border-radius:var(--r-lg);padding:1.4rem 1.4rem 1.5rem;background:var(--surface);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--border-2)}
.news-card h3{font-size:1.04rem;font-weight:700;line-height:1.4;letter-spacing:-.01em;color:var(--ink)}
.news-card .nd{margin-top:auto;font-size:.82rem;color:var(--sub);font-weight:600;display:flex;align-items:center;gap:.4rem}
.news-card .nd .arr2{margin-left:auto;color:var(--primary);opacity:0;transform:translateX(-4px);transition:opacity .2s,transform .2s}
.news-card:hover .nd .arr2{opacity:1;transform:none}
/* ============================================================
   CTA BANNER — joins the alternating rhythm (theme via nth-of-type tokens)
   ------------------------------------------------------------
   Background + text colour come from the section theme rules (dark CTA on
   home/faculty, light CTA elsewhere); internals below use theme tokens so they
   adapt to whichever side the CTA lands on. No hardcoded white left.
   ============================================================ */
.cta-banner{position:relative;overflow:hidden}
.cta-banner::before{content:"";position:absolute;inset:0;background:radial-gradient(58% 72% at 88% 52%,color-mix(in srgb,var(--primary) 16%,transparent),transparent 60%);pointer-events:none}
.cta-inner{position:relative;z-index:1;width:min(var(--wrap),92vw);margin-inline:auto;padding-top:clamp(34px,4vw,52px);padding-bottom:clamp(52px,7vw,84px);
  display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(1.8rem,4vw,4rem);align-items:center}
.cta-copy .eyebrow{margin-bottom:1.1rem}
.cta-copy h2{font-size:clamp(1.6rem,1.1rem + 2vw,2.6rem);font-weight:800;letter-spacing:-.025em;line-height:1.2;margin-bottom:.9rem;text-wrap:balance;color:var(--ink)}
.cta-copy .note{color:var(--sub);font-size:.98rem;margin-bottom:1.6rem}
.cta-actions{display:flex;flex-wrap:wrap;gap:.8rem}
.cta-form{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:clamp(1.3rem,2.5vw,1.8rem);backdrop-filter:blur(8px)}
.cta-form .cf-title{font-size:.92rem;font-weight:700;margin-bottom:1rem;color:var(--ink)}
.field{margin-bottom:.8rem}
.field label{display:block;font-size:.78rem;font-weight:600;color:var(--sub);margin-bottom:.35rem}
.field input,.field textarea{width:100%;font:inherit;font-size:.92rem;color:var(--ink);background:var(--surface-2);border:1px solid color-mix(in srgb,var(--ink) 30%,transparent);border-radius:10px;padding:.7em .9em;transition:border-color .2s,background .2s}
.field-err{display:block;font-size:.76rem;font-weight:600;color:var(--danger);margin-top:.35rem}
.field-err[hidden]{display:none}
.field input::placeholder,.field textarea::placeholder{color:var(--faint)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--primary);background:var(--surface-2)}
.field textarea{resize:vertical;min-height:62px}
.consent{display:flex;align-items:flex-start;gap:.55rem;font-size:.8rem;color:var(--sub);margin:.2rem 0 1rem;cursor:pointer}
.consent input{margin-top:.15rem;accent-color:var(--primary);width:16px;height:16px;flex:0 0 auto}
.consent a{text-decoration:underline;text-underline-offset:2px}
.cta-form .btn{width:100%}
/* consultation privacy notice (collapsible, last item inside the form) */
.cf-privacy{margin:.1rem 0 1rem;border:1px solid var(--border);border-radius:10px;background:var(--muted)}
.cf-privacy summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:.45rem;font-size:.82rem;font-weight:700;color:var(--text);padding:.62em .85em}
.cf-privacy summary::-webkit-details-marker{display:none}
.cf-privacy summary::before{content:"";width:7px;height:7px;flex:0 0 auto;border-right:2px solid var(--faint);border-bottom:2px solid var(--faint);transform:rotate(-45deg);transition:transform .2s var(--ease)}
.cf-privacy[open] summary::before{transform:rotate(45deg)}
.cf-privacy dl{margin:0;padding:0 1em .9em;display:grid;grid-template-columns:auto 1fr;gap:.32em .85em}
.cf-privacy dt{font-size:.74rem;font-weight:700;color:var(--primary);white-space:nowrap}
.cf-privacy dd{margin:0;font-size:.74rem;color:var(--sub);line-height:1.5}
.form-ok{display:none;align-items:center;gap:.5rem;font-size:.86rem;font-weight:600;color:var(--primary);margin-top:.7rem}
.form-ok.show{display:flex}
/* even-positioned (light) CTA — neutralise the .on-dark white-ghost & focus overrides */
#main>section:nth-of-type(even).cta-banner .btn-ghost{color:var(--ink);border-color:var(--border-2)}
#main>section:nth-of-type(even).cta-banner .btn-ghost:hover{border-color:var(--ink);background:var(--surface)}
#main>section:nth-of-type(even).cta-banner :focus-visible{outline-color:var(--primary)}
/* light CTA: darken input placeholders so the hint text isn't washed out on the near-white fields */
#main>section:nth-of-type(even).cta-banner .field input::placeholder,
#main>section:nth-of-type(even).cta-banner .field textarea::placeholder{color:#667085}
/* ============================================================
   FOOTER — pinned deepest dark
   ============================================================ */
.site-footer{background:#070809;color:#a1a1aa;padding-top:clamp(48px,6vw,72px);padding-bottom:calc(2rem + env(safe-area-inset-bottom))}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:clamp(1.5rem,3vw,2.5rem);padding-bottom:2.4rem;border-bottom:1px solid rgba(255,255,255,.1)}
.f-brand .fwm{display:flex;align-items:baseline;gap:.5rem;color:#fff;margin-bottom:.8rem}
.f-brand .fwm b{font-size:1.1rem;font-weight:800;letter-spacing:-.02em}
.f-brand .fwm .en{font-size:.78rem;color:#a1a1aa;font-weight:600}
.f-brand p{font-size:.9rem;line-height:1.6;max-width:34ch}
.f-col h4{color:#fff;font-size:.82rem;font-weight:700;letter-spacing:.04em;margin-bottom:1rem}
.f-col ul{display:flex;flex-direction:column;gap:.55rem}
.f-col a,.f-col address{font-size:.88rem;color:#a1a1aa;font-style:normal;line-height:1.55;transition:color .2s}
.f-col a:hover{color:#fff}
.f-col .em{color:#fff;font-weight:600}
.f-map{margin-top:.4rem;border:1px solid rgba(255,255,255,.12);border-radius:12px;overflow:hidden;background:#0F1116;display:block;text-decoration:none;transition:border-color .2s}
.f-map:hover{border-color:rgba(255,255,255,.28)}
#footMap{width:100%;height:120px;display:block;pointer-events:none}
.f-map .fm-cap{font-size:.74rem;padding:.5em .7em;color:#a1a1aa;display:flex;align-items:center;gap:.4rem;border-top:1px solid rgba(255,255,255,.08)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding-top:1.6rem;font-size:.8rem;color:#a1a1aa}
.footer-bottom .fb-links{display:flex;gap:1.2rem;flex-wrap:wrap}
.footer-bottom .fb-links a{text-decoration:underline;text-underline-offset:2px;text-decoration-color:rgba(255,255,255,.35)}
.footer-bottom a:hover{color:#fff}
/* ============================================================
   CURRICULUM
   ============================================================ */
.curriculum{padding-top:var(--pad-sec);padding-bottom:clamp(60px,6.5vw,92px)}
.track-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1rem,2vw,1.5rem)}
.track-card{position:relative;border:1px solid var(--border);border-radius:var(--r-lg);padding:1.6rem 1.5rem;background:var(--surface);display:flex;flex-direction:column;gap:.7rem;overflow:hidden;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s}
.track-card::before{content:"";position:absolute;inset:0 auto 0 0;width:4px;background:var(--primary);transform:scaleY(0);transform-origin:top;transition:transform .35s var(--ease)}
.track-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--border-2)}
.track-card:hover::before{transform:scaleY(1)}
.track-badge{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;font-weight:800;font-size:1.15rem;color:var(--on-primary);background:var(--primary);box-shadow:var(--shadow-sm)}
.track-card .tc-name{font-size:1.1rem;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.track-card .tc-desc{font-size:.92rem;color:var(--sub);line-height:1.55}
.track-card ul{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:.1rem}
.track-card ul li{font-size:.78rem;font-weight:600;color:var(--sub);background:var(--muted);border:1px solid var(--border);padding:.3em .6em;border-radius:999px}
.level-head{margin-top:clamp(2.6rem,4.5vw,3.6rem);margin-bottom:clamp(1.4rem,2.5vw,2rem);display:flex;align-items:baseline;gap:.2rem .9rem;flex-wrap:wrap}
.level-head h3{font-size:clamp(1.2rem,1rem + .8vw,1.55rem);font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.level-head .lh-note{font-size:.92rem;color:var(--sub);font-weight:600}
.level-rail{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(.8rem,1.5vw,1.2rem);position:relative}
.level-rail::before{content:"";position:absolute;left:5%;right:5%;top:18px;height:3px;background:repeating-linear-gradient(90deg,var(--lv-3) 0 18px,transparent 18px 30px);opacity:.4;z-index:0}
.level-card{position:relative;z-index:1;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);padding:1.2rem 1.1rem;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s}
.level-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--border-2)}
.level-step{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-weight:800;color:var(--on-primary);background:var(--primary);margin-bottom:.7rem;box-shadow:0 0 0 5px var(--bg-elev),0 0 0 6px var(--border-2)}
.level-card .lc-kr{font-size:.72rem;font-weight:800;letter-spacing:.14em;color:var(--primary);margin-bottom:.2rem}
.level-card h4{font-size:1rem;font-weight:700;margin-bottom:.3rem;letter-spacing:-.01em;color:var(--ink)}
.level-card p{font-size:.85rem;color:var(--sub);line-height:1.5}
/* ============================================================
   FACULTY
   ============================================================ */
.faculty{padding-block:var(--pad-sec)}
.fac-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1rem,2vw,1.5rem)}
.fac-card{border:1px solid var(--border);border-radius:var(--r-lg);padding:1.5rem 1.4rem;background:var(--surface);display:flex;flex-direction:column;gap:.55rem;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s}
.fac-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--border-2)}
.fac-card .fc-role{font-size:.74rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--primary)}
.fac-card h3{font-size:1.05rem;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.fac-card p{font-size:.9rem;color:var(--sub);line-height:1.55}
.fac-card .fc-depts{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:.2rem}
.fac-card .fc-depts span{font-size:.76rem;font-weight:600;color:var(--sub);background:var(--muted);border:1px solid var(--border);padding:.28em .6em;border-radius:999px}
/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1180px){.nav a{font-size:.82rem;padding:.5em .5em}}
@media (max-width:1024px){
  .nav,.header-cta{display:none}
  .hamburger{display:inline-flex}
  .nav.drawer-open{display:flex}
  .nav{position:fixed;inset:var(--header-h) 0 auto 0;flex-direction:column;align-items:stretch;gap:.1rem;
    background:rgba(10,11,14,.98);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.11);
    padding:.8rem 5vw 1.4rem;box-shadow:var(--shadow-lg);max-height:calc(100dvh - var(--header-h));overflow:auto;margin:0}
  .nav a{font-size:1rem;padding:.85em .4em;color:#F5F7FB;border-bottom:1px solid rgba(255,255,255,.11)}
  .nav a::after{display:none}
  .nav .drawer-cta{display:inline-flex;margin-top:1rem;border:none}
  .mobile-cta-bar{display:flex}
  body{padding-bottom:72px}
  .explorer-shell{grid-template-columns:1fr}
  .exp-aside{position:static;min-width:0}
  .path-tabs{flex-direction:row;overflow-x:auto;min-width:0;max-width:100%;padding-bottom:.5rem;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
  .path-tab{flex:0 0 auto;width:auto;min-width:210px;scroll-snap-align:start}
  .path-tab .pt-num{display:none}
  .map-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;
    -webkit-mask-image:linear-gradient(90deg,transparent,#000 18px,#000 calc(100% - 18px),transparent);
    mask-image:linear-gradient(90deg,transparent,#000 18px,#000 calc(100% - 18px),transparent)}
  .metro-svg{min-width:880px}
  .map-hint{display:flex}
}
@media (max-width:920px){
  .ht-top{grid-template-columns:1fr;gap:2rem}
  .infinity{order:-1}
  .systems{grid-template-columns:repeat(2,1fr)}
  .systems::before{display:none}
  .cta-inner{grid-template-columns:1fr}
}
@media (max-width:768px){
  .facts-grid{grid-template-columns:repeat(2,1fr)}
  .career-grid{grid-template-columns:repeat(2,1fr)}
  .evolve{grid-template-columns:1fr;gap:.8rem}
  .evolve-arrow{transform:rotate(90deg);margin:0 auto}
  .fusion{grid-template-columns:1fr}
  .venn{order:-1}
  .dp-grid{grid-template-columns:1fr;gap:1.4rem}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .track-grid,.fac-grid{grid-template-columns:1fr}
  .level-rail{grid-template-columns:repeat(2,1fr)}
  .level-rail::before{display:none}
  .f-col a{display:inline-block;padding:.45rem 0}
  .footer-bottom{gap:.4rem 1rem}
  .footer-bottom .fb-links a{display:inline-block;padding:.4rem 0}
}
@media (max-width:600px){
  .hero-bg svg{width:120%;opacity:.55}
  .hero-glow{width:90vw;right:-10%}
}
@media (max-width:480px){
  .facts-grid,.career-grid,.systems,.level-rail{grid-template-columns:1fr}
  .hero-cta .btn,.cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr}
  :root{--pad-sec:48px}
}
@media (max-width:380px){
  .header-inner{gap:.6rem}
  .wordmark .wm-sub,.wordmark .wm-dot{display:none}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}