/* ============================================================
   HYUNJIN ENS — Global AI + ESS
   Design System v1.0 (2026.08)
   ============================================================ */

/* ---------- 1. Design Tokens ---------- */
:root{
  /* Brand — 로고 그라디언트(라임 → 그린 → 틸) 기반 */
  --lime:      #C6D93A;
  --green:     #4CAF3C;
  --green-600: #3B9130;
  --teal:      #0E8F8C;
  --teal-700:  #0B6F6D;

  /* Neutral */
  --ink:       #0B1412;
  --ink-800:   #16211E;
  --ink-700:   #2A3733;
  --muted:     #5F6E69;
  --muted-2:   #8C9995;
  --line:      #E3E8E5;
  --line-2:    #EFF2F0;
  --surface:   #FFFFFF;
  --surface-2: #F6F8F6;
  --surface-3: #EEF2EF;

  /* Dark surfaces */
  --dark:      #071310;
  --dark-2:    #0E1E1A;
  --dark-3:    #16302A;

  /* Type */
  --font: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont,
          "Apple SD Gothic Neo", "Segoe UI", Roboto, "Helvetica Neue",
          "Malgun Gothic", "맑은 고딕", sans-serif;

  /* Layout */
  --maxw: 1240px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius: 4px;
  --radius-lg: 8px;

  /* Motion */
  --ease: cubic-bezier(.22,.61,.36,1);

  --header-h: 76px;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:var(--header-h);}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-700);
  background:var(--surface);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  word-break:keep-all;
  overflow-wrap:break-word;
}
img,svg,video{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:2px;}
::selection{background:var(--lime);color:var(--ink);}

/* ---------- 3. Typography ---------- */
h1,h2,h3,h4{
  color:var(--ink);
  font-weight:700;
  line-height:1.28;
  letter-spacing:-.02em;
}
.display{font-size:clamp(2.2rem,5.2vw,4.1rem);line-height:1.12;letter-spacing:-.035em;font-weight:800;}
.h1{font-size:clamp(1.9rem,3.8vw,3rem);letter-spacing:-.03em;}
.h2{font-size:clamp(1.55rem,2.7vw,2.25rem);letter-spacing:-.028em;}
.h3{font-size:clamp(1.15rem,1.7vw,1.4rem);letter-spacing:-.02em;}
.h4{font-size:1.02rem;letter-spacing:-.015em;}
.lead{font-size:clamp(1.02rem,1.35vw,1.18rem);color:var(--muted);line-height:1.85;}
.small{font-size:.875rem;}
.tiny{font-size:.79rem;letter-spacing:.02em;}

/* Eyebrow / 섹션 라벨 */
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:.735rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  color:var(--teal);margin-bottom:18px;
}
.eyebrow::before{
  content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--lime),var(--teal));
}
.dark .eyebrow{color:var(--lime);}
.dark .eyebrow::before{background:linear-gradient(90deg,var(--lime),transparent);}

/* ---------- 4. Layout ---------- */
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter);}
.section{padding-block:clamp(72px,9vw,132px);}
.section--tight{padding-block:clamp(56px,6vw,88px);}
.section-head{max-width:760px;margin-bottom:clamp(40px,5vw,64px);}
.section-head .lead{margin-top:18px;}
.grid{display:grid;gap:clamp(20px,2.4vw,32px);}
.g2{grid-template-columns:repeat(2,1fr);}
.g3{grid-template-columns:repeat(3,1fr);}
.g4{grid-template-columns:repeat(4,1fr);}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:center;}
.split--top{align-items:start;}
.divider{height:1px;background:var(--line);border:0;margin:0;}
.bg-2{background:var(--surface-2);}
.bg-3{background:var(--surface-3);}
.dark{background:var(--dark);color:rgba(255,255,255,.78);}
.dark h1,.dark h2,.dark h3,.dark h4{color:#fff;}
.dark .lead{color:rgba(255,255,255,.62);}
.mt-s{margin-top:18px;}
.mt-m{margin-top:32px;}
.mt-l{margin-top:52px;}

/* ---------- 5. Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 28px;border-radius:var(--radius);
  font-size:.92rem;font-weight:600;letter-spacing:-.01em;
  transition:all .28s var(--ease);white-space:nowrap;
}
.btn svg{width:15px;height:15px;transition:transform .3s var(--ease);}
.btn:hover svg{transform:translateX(3px);}
.btn--primary{background:var(--ink);color:#fff;}
.btn--primary:hover{background:var(--teal-700);}
.btn--accent{background:linear-gradient(100deg,var(--green),var(--teal));color:#fff;}
.btn--accent:hover{filter:brightness(1.08);transform:translateY(-1px);
  box-shadow:0 10px 26px -10px rgba(14,143,140,.65);}
.btn--ghost{border:1px solid var(--line);color:var(--ink);background:var(--surface);}
.btn--ghost:hover{border-color:var(--ink);}
.btn--outline-light{border:1px solid rgba(255,255,255,.28);color:#fff;}
.btn--outline-light:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.55);}
.btn--lg{padding:17px 36px;font-size:.98rem;}
.btn--block{width:100%;}

.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.875rem;font-weight:600;color:var(--teal);
  border-bottom:1px solid transparent;transition:.25s var(--ease);
}
.link-arrow:hover{border-bottom-color:var(--teal);gap:12px;}

/* ---------- 6. Header ---------- */
.header{
  position:fixed;inset:0 0 auto 0;height:var(--header-h);z-index:900;
  display:flex;align-items:center;
  transition:background .35s var(--ease),border-color .35s var(--ease);
  border-bottom:1px solid transparent;
}
.header__inner{
  width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter);
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.header.is-solid{
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:saturate(180%) blur(18px);
  backdrop-filter:saturate(180%) blur(18px);
  border-bottom-color:var(--line);
}
.brand{display:flex;align-items:center;gap:11px;}
.brand__mark{width:34px;height:34px;flex:none;}
.brand__text{display:flex;flex-direction:column;line-height:1.12;}
.brand__name{font-size:1.02rem;font-weight:800;letter-spacing:-.01em;color:#fff;transition:color .35s var(--ease);}
.brand__name em{font-style:normal;font-weight:500;opacity:.72;}
.brand__sub{font-size:.63rem;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.5);transition:color .35s var(--ease);}
.header.is-solid .brand__name{color:var(--ink);}
.header.is-solid .brand__sub{color:var(--muted-2);}

.nav{display:flex;align-items:center;gap:clamp(18px,2.3vw,36px);}
.nav a{
  position:relative;font-size:.92rem;font-weight:500;color:rgba(255,255,255,.82);
  padding-block:6px;transition:color .3s var(--ease);
}
.nav a::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:1.5px;
  background:linear-gradient(90deg,var(--lime),var(--teal));
  transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);
}
.nav a:hover::after,.nav a.is-active::after{transform:scaleX(1);}
.header.is-solid .nav a{color:var(--ink-700);}
.nav a:hover{color:#fff;}
.header.is-solid .nav a:hover{color:var(--ink);}

.header__aside{display:flex;align-items:center;gap:14px;}
.lang{display:flex;align-items:center;gap:2px;font-size:.78rem;font-weight:600;letter-spacing:.04em;}
.lang button{padding:5px 8px;border-radius:3px;color:rgba(255,255,255,.5);transition:.25s;}
.lang button.is-on{color:#fff;}
.lang span{color:rgba(255,255,255,.28);}
.header.is-solid .lang button{color:var(--muted-2);}
.header.is-solid .lang button.is-on{color:var(--ink);}
.header.is-solid .lang span{color:var(--line);}
.header .btn--accent{padding:11px 22px;font-size:.86rem;}

.burger{display:none;width:40px;height:40px;position:relative;}
.burger i{
  position:absolute;left:9px;width:22px;height:1.6px;background:#fff;
  transition:.32s var(--ease);
}
.burger i:nth-child(1){top:15px;}
.burger i:nth-child(2){top:22px;}
.header.is-solid .burger i{background:var(--ink);}
body.nav-open .burger i{background:var(--ink);}
body.nav-open .burger i:nth-child(1){top:19px;transform:rotate(45deg);}
body.nav-open .burger i:nth-child(2){top:19px;transform:rotate(-45deg);}

/* Mobile drawer */
.drawer{
  position:fixed;inset:var(--header-h) 0 0 0;z-index:880;
  background:var(--surface);padding:32px var(--gutter) 48px;
  transform:translateY(-12px);opacity:0;pointer-events:none;
  transition:.35s var(--ease);overflow-y:auto;
}
body.nav-open .drawer{transform:none;opacity:1;pointer-events:auto;}
body.nav-open{overflow:hidden;}
.drawer a{display:block;padding:16px 0;font-size:1.22rem;font-weight:700;color:var(--ink);border-bottom:1px solid var(--line-2);}
.drawer .btn{margin-top:28px;}

/* ---------- 7. Hero ---------- */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:flex-end;
  background:var(--dark);color:#fff;overflow:hidden;
  padding-top:calc(var(--header-h) + 40px);
}
.hero__bg{position:absolute;inset:0;z-index:0;}
.hero__bg::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(120% 85% at 78% 8%, rgba(14,143,140,.42) 0%, transparent 58%),
    radial-gradient(90% 70% at 12% 92%, rgba(198,217,58,.20) 0%, transparent 62%),
    linear-gradient(180deg,#071310 0%,#0A1A16 46%,#071310 100%);
}
.hero__grid{
  position:absolute;inset:0;opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:88px 88px;
  -webkit-mask-image:radial-gradient(115% 92% at 50% 32%,#000 22%,transparent 78%);
  mask-image:radial-gradient(115% 92% at 50% 32%,#000 22%,transparent 78%);
}
.hero__glow{
  position:absolute;width:min(780px,88vw);aspect-ratio:1;right:-12%;top:-16%;
  background:conic-gradient(from 190deg,var(--lime),var(--green),var(--teal),var(--lime));
  filter:blur(130px);opacity:.24;border-radius:50%;
  animation:drift 22s ease-in-out infinite alternate;
}
@keyframes drift{to{transform:translate3d(-7%,9%,0) scale(1.14);}}

.hero__inner{position:relative;z-index:2;width:100%;}
.hero__body{max-width:940px;padding-bottom:clamp(48px,7vw,88px);}
.hero__badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 16px 8px 12px;border-radius:100px;
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.05);
  font-size:.775rem;font-weight:600;letter-spacing:.02em;color:rgba(255,255,255,.86);
  margin-bottom:30px;
}
.hero__badge .dot{
  width:7px;height:7px;border-radius:50%;background:var(--lime);flex:none;
  box-shadow:0 0 0 0 rgba(198,217,58,.7);animation:pulse 2.4s infinite;
}
@keyframes pulse{
  70%{box-shadow:0 0 0 9px rgba(198,217,58,0);}
  100%{box-shadow:0 0 0 0 rgba(198,217,58,0);}
}
.hero h1{color:#fff;margin-bottom:26px;}
.hero h1 .grad{
  background:linear-gradient(96deg,var(--lime) 8%,var(--green) 48%,var(--teal) 96%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero .lead{max-width:640px;color:rgba(255,255,255,.66);}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:40px;}

/* Hero KPI strip */
.hero__kpis{
  position:relative;z-index:2;
  border-top:1px solid rgba(255,255,255,.11);
  display:grid;grid-template-columns:repeat(4,1fr);
}
.kpi{padding:30px 0 34px 26px;border-left:1px solid rgba(255,255,255,.09);}
.kpi:first-child{border-left:0;padding-left:0;}
.kpi__v{
  font-size:clamp(1.6rem,2.6vw,2.15rem);font-weight:800;color:#fff;letter-spacing:-.03em;line-height:1.1;
}
.kpi__v small{font-size:.55em;font-weight:700;margin-left:2px;color:var(--lime);}
.kpi__l{font-size:.78rem;color:rgba(255,255,255,.5);margin-top:7px;letter-spacing:.01em;}
.scroll-hint{
  position:absolute;right:var(--gutter);bottom:34px;z-index:3;
  writing-mode:vertical-rl;font-size:.68rem;letter-spacing:.24em;text-transform:uppercase;
  color:rgba(255,255,255,.4);display:flex;align-items:center;gap:12px;
}
.scroll-hint::after{content:"";width:1px;height:52px;background:linear-gradient(180deg,rgba(255,255,255,.4),transparent);}

/* ---------- 8. Cards ---------- */
.card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:clamp(26px,2.6vw,36px);
  transition:.4s var(--ease);overflow:hidden;height:100%;
  display:flex;flex-direction:column;
}
.card::after{
  content:"";position:absolute;left:0;top:0;width:100%;height:2px;
  background:linear-gradient(90deg,var(--lime),var(--green),var(--teal));
  transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease);
}
.card:hover{box-shadow:0 22px 50px -26px rgba(11,20,18,.30);transform:translateY(-3px);}
.card:hover::after{transform:scaleX(1);}
.card__num{
  font-size:.72rem;font-weight:700;letter-spacing:.16em;color:var(--muted-2);margin-bottom:20px;
}
.card__icon{
  width:46px;height:46px;margin-bottom:22px;display:grid;place-items:center;
  border-radius:var(--radius);background:var(--surface-2);color:var(--teal);
}
.card__icon svg{width:22px;height:22px;}
.card h3{margin-bottom:12px;}
.card p{font-size:.92rem;color:var(--muted);line-height:1.8;}
.card__foot{margin-top:auto;padding-top:22px;}
.card__tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:20px;}
.tag{
  font-size:.735rem;font-weight:500;padding:5px 11px;border-radius:100px;
  background:var(--surface-2);color:var(--muted);border:1px solid var(--line-2);
}
.card.dark-card{background:var(--dark-2);border-color:rgba(255,255,255,.09);}
.card.dark-card h3{color:#fff;}
.card.dark-card p{color:rgba(255,255,255,.6);}
.card.dark-card .card__icon{background:rgba(255,255,255,.06);color:var(--lime);}
.card.dark-card .card__num{color:rgba(255,255,255,.4);}
.card.dark-card .tag{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.08);color:rgba(255,255,255,.7);}

/* Feature list */
.flist{display:grid;gap:2px;}
.flist li{
  display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;
  padding:18px 0;border-bottom:1px solid var(--line-2);
}
.flist li:last-child{border-bottom:0;}
.flist .ic{
  width:22px;height:22px;flex:none;margin-top:3px;display:grid;place-items:center;
  border-radius:50%;background:linear-gradient(135deg,var(--lime),var(--teal));color:#fff;
}
.flist .ic svg{width:11px;height:11px;}
.flist h4{margin-bottom:3px;}
.flist p{font-size:.88rem;color:var(--muted);line-height:1.72;}
.dark .flist li{border-bottom-color:rgba(255,255,255,.09);}
.dark .flist p{color:rgba(255,255,255,.58);}

/* ---------- 9. Media ---------- */
.media{
  border-radius:var(--radius-lg);overflow:hidden;background:var(--surface-2);
  border:1px solid var(--line);
}
.media img{width:100%;}
.media--pad{padding:clamp(16px,2.2vw,28px);background:var(--surface);}
figcaption{font-size:.79rem;color:var(--muted-2);margin-top:12px;letter-spacing:.01em;}

/* ---------- 10. Tabs ---------- */
.tabs{display:flex;flex-wrap:wrap;gap:4px;border-bottom:1px solid var(--line);margin-bottom:clamp(34px,4vw,52px);}
.tabs button{
  padding:14px 22px;font-size:.94rem;font-weight:600;color:var(--muted);
  border-bottom:2px solid transparent;margin-bottom:-1px;transition:.28s var(--ease);
  letter-spacing:-.01em;
}
.tabs button:hover{color:var(--ink);}
.tabs button.is-on{color:var(--ink);border-bottom-color:var(--teal);}
.panel{display:none;}
.panel.is-on{display:block;animation:fade .5s var(--ease);}
@keyframes fade{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:none;}}

/* ---------- 11. Spec table ---------- */
.spec{border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:var(--surface);}
.spec caption{
  text-align:left;padding:18px 22px;background:var(--surface-2);
  font-weight:700;color:var(--ink);font-size:.95rem;border-bottom:1px solid var(--line);
}
.spec th,.spec td{padding:13px 22px;font-size:.875rem;text-align:left;border-bottom:1px solid var(--line-2);}
.spec tr:last-child th,.spec tr:last-child td{border-bottom:0;}
.spec th{width:46%;color:var(--muted);font-weight:500;background:#FBFCFB;}
.spec td{color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums;}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}

/* Comparison table */
.ctable{min-width:660px;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:var(--surface);}
.ctable th,.ctable td{padding:15px 20px;font-size:.875rem;border-bottom:1px solid var(--line-2);text-align:left;}
.ctable thead th{background:var(--ink);color:#fff;font-weight:600;border-bottom:0;}
.ctable tbody th{font-weight:500;color:var(--muted);background:#FBFCFB;}
.ctable td{color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums;}
.ctable .hl{background:rgba(76,175,60,.06);}

/* ---------- 12. Timeline ---------- */
.timeline{position:relative;padding-left:26px;}
.timeline::before{
  content:"";position:absolute;left:5px;top:6px;bottom:6px;width:1px;
  background:linear-gradient(180deg,var(--lime),var(--teal),transparent);
}
.timeline li{position:relative;padding-bottom:30px;}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:"";position:absolute;left:-26px;top:9px;width:11px;height:11px;border-radius:50%;
  background:var(--surface);border:2px solid var(--teal);
}
.timeline .yr{
  font-size:.94rem;font-weight:800;color:var(--teal);letter-spacing:.02em;margin-bottom:6px;display:block;
}
.timeline p{font-size:.9rem;color:var(--muted);line-height:1.8;}
.timeline strong{color:var(--ink);font-weight:600;}
.dark .timeline li::before{background:var(--dark);border-color:var(--lime);}
.dark .timeline .yr{color:var(--lime);}
.dark .timeline p{color:rgba(255,255,255,.6);}
.dark .timeline strong{color:#fff;}

/* ---------- 13. Metrics ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);}
.metric{padding:32px 24px 32px 0;border-right:1px solid var(--line);}
.metric:last-child{border-right:0;}
.metric__v{font-size:clamp(1.7rem,2.8vw,2.4rem);font-weight:800;color:var(--ink);letter-spacing:-.035em;line-height:1.05;}
.metric__v small{font-size:.5em;color:var(--teal);margin-left:3px;font-weight:700;}
.metric__l{font-size:.82rem;color:var(--muted);margin-top:8px;}

/* ---------- 14. Certifications ---------- */
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(14px,1.8vw,24px);}
.cert{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:16px;transition:.35s var(--ease);
}
.cert:hover{border-color:var(--teal);transform:translateY(-3px);box-shadow:0 18px 38px -24px rgba(11,20,18,.35);}
.cert img{width:100%;aspect-ratio:3/4;object-fit:contain;background:var(--surface-2);border-radius:2px;}
.cert figcaption{font-size:.8rem;font-weight:600;color:var(--ink);margin-top:14px;line-height:1.5;}
.cert .tiny{color:var(--muted-2);font-weight:400;display:block;margin-top:3px;}

/* ---------- 15. Contact ---------- */
.contact-shell{display:grid;grid-template-columns:0.82fr 1.18fr;gap:clamp(32px,4.5vw,72px);align-items:start;}
.contact-info li{padding:20px 0;border-bottom:1px solid rgba(255,255,255,.1);}
.contact-info .k{font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--lime);margin-bottom:7px;}
.contact-info .v{font-size:.98rem;color:#fff;font-weight:500;line-height:1.65;}
.contact-info .v span{display:block;font-size:.85rem;color:rgba(255,255,255,.5);font-weight:400;margin-top:3px;}

.form{
  background:var(--surface);border-radius:var(--radius-lg);
  padding:clamp(26px,3.2vw,44px);border:1px solid var(--line);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1/-1;}
.field label{font-size:.82rem;font-weight:600;color:var(--ink);letter-spacing:-.01em;}
.field label .req{color:#D0453B;margin-left:3px;}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);font-size:.92rem;color:var(--ink);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.field input::placeholder,.field textarea::placeholder{color:#B4BEBA;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0;border-color:var(--teal);box-shadow:0 0 0 3px rgba(14,143,140,.10);
}
.field textarea{resize:vertical;min-height:130px;line-height:1.7;}
.field select{
  appearance:none;-webkit-appearance:none;cursor:pointer;padding-right:40px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5l5-5' stroke='%235F6E69' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 15px center;background-size:11px;
}

/* 문의 유형 선택 (radio chips) */
.chips{display:flex;flex-wrap:wrap;gap:9px;}
.chip{position:relative;}
.chip input{position:absolute;opacity:0;width:0;height:0;}
.chip span{
  display:inline-flex;align-items:center;gap:7px;
  padding:10px 17px;border:1px solid var(--line);border-radius:100px;
  font-size:.855rem;font-weight:500;color:var(--muted);cursor:pointer;
  transition:.25s var(--ease);user-select:none;background:var(--surface);
}
.chip span::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--line);transition:.25s var(--ease);flex:none;
}
.chip input:checked + span{
  border-color:var(--teal);color:var(--teal-700);background:rgba(14,143,140,.055);font-weight:600;
}
.chip input:checked + span::before{background:var(--teal);box-shadow:0 0 0 3px rgba(14,143,140,.16);}
.chip input:focus-visible + span{outline:2px solid var(--teal);outline-offset:2px;}

.consent{
  display:flex;gap:11px;align-items:flex-start;
  padding:16px;background:var(--surface-2);border-radius:var(--radius);
  font-size:.82rem;color:var(--muted);line-height:1.65;
}
.consent input{width:17px;height:17px;flex:none;margin-top:2px;accent-color:var(--teal);cursor:pointer;}
.consent a{color:var(--teal);text-decoration:underline;text-underline-offset:2px;}

.form-note{font-size:.79rem;color:var(--muted-2);margin-top:14px;text-align:center;}
.form-status{
  display:none;margin-top:16px;padding:14px 16px;border-radius:var(--radius);font-size:.875rem;font-weight:500;
}
.form-status.ok{display:block;background:rgba(76,175,60,.10);color:var(--green-600);border:1px solid rgba(76,175,60,.28);}
.form-status.err{display:block;background:rgba(208,69,59,.08);color:#B03A31;border:1px solid rgba(208,69,59,.25);}

/* ---------- 16. CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--dark-2);color:#fff;
  border-radius:var(--radius-lg);padding:clamp(40px,5.5vw,72px);
  display:grid;grid-template-columns:1.35fr auto;gap:32px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;right:-8%;top:-60%;width:420px;aspect-ratio:1;border-radius:50%;
  background:conic-gradient(from 140deg,var(--lime),var(--teal),var(--green));
  filter:blur(110px);opacity:.32;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.6);font-size:.98rem;max-width:520px;}

/* ---------- 17. Footer ---------- */
.footer{background:var(--dark);color:rgba(255,255,255,.55);padding-top:clamp(56px,6vw,84px);}
.footer__top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px;}
.footer .brand__name{color:#fff;}
.footer .brand__sub{color:rgba(255,255,255,.4);}
.footer__desc{font-size:.865rem;line-height:1.85;margin-top:22px;max-width:340px;color:rgba(255,255,255,.5);}
.footer h4{font-size:.76rem;letter-spacing:.15em;text-transform:uppercase;color:rgba(255,255,255,.85);margin-bottom:20px;}
.footer li{margin-bottom:11px;}
.footer li a{font-size:.875rem;color:rgba(255,255,255,.52);transition:color .25s;}
.footer li a:hover{color:var(--lime);}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.09);padding-block:26px 34px;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:.79rem;color:rgba(255,255,255,.38);
}
.footer__bottom .biz{display:flex;flex-wrap:wrap;gap:6px 18px;}

/* ---------- 18. Reveal animation ---------- */
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease);}
[data-reveal].is-in{opacity:1;transform:none;}
[data-reveal-delay="1"]{transition-delay:.09s;}
[data-reveal-delay="2"]{transition-delay:.18s;}
[data-reveal-delay="3"]{transition-delay:.27s;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;}
  [data-reveal]{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 19. i18n ---------- */
[data-en]{display:none;}
html[lang="en"] [data-ko]{display:none;}
html[lang="en"] [data-en]{display:revert;}

/* ---------- 20. Responsive ---------- */
@media (max-width:1080px){
  .footer__top{grid-template-columns:1fr 1fr;gap:36px;}
  .contact-shell{grid-template-columns:1fr;}
  .cert-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:900px){
  :root{--header-h:64px;}
  .nav,.header .btn--accent{display:none;}
  .burger{display:block;}
  .split{grid-template-columns:1fr;gap:36px;}
  .g3,.g4{grid-template-columns:repeat(2,1fr);}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric{border-right:0;padding-right:0;border-bottom:1px solid var(--line);}
  .metric:nth-child(odd){padding-right:24px;border-right:1px solid var(--line);}
  .hero__kpis{grid-template-columns:repeat(2,1fr);}
  .kpi{padding:22px 0;border-left:0;border-top:1px solid rgba(255,255,255,.09);}
  .kpi:nth-child(-n+2){border-top:0;}
  .kpi:nth-child(even){padding-left:24px;border-left:1px solid rgba(255,255,255,.09);}
  .cta-band{grid-template-columns:1fr;}
  .scroll-hint{display:none;}
}
@media (max-width:640px){
  .g2,.g3,.g4{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .cert-grid{grid-template-columns:repeat(2,1fr);}
  .footer__top{grid-template-columns:1fr;gap:32px;}
  .tabs{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;}
  .tabs::-webkit-scrollbar{display:none;}
  .tabs button{padding:13px 16px;font-size:.88rem;white-space:nowrap;}
  .hero{min-height:auto;padding-top:calc(var(--header-h) + 72px);}
  .hero__body{padding-bottom:56px;}
}

/* ---------- 21. Print ---------- */
@media print{
  .header,.drawer,.hero__bg,.scroll-hint,.form,.cta-band{display:none!important;}
  body{color:#000;}
}