/* TAP Institute — 회사 소개 사이트 */
:root{
  --ink:#13294B;
  --mid:#2B5C8A;
  --accent:#0E9488;
  --accent-dark:#0B7A70;
  --slate:#556274;
  --text:#1F2937;
  --bg:#FFFFFF;
  --soft:#F4F7FA;
  --line:#DCE3EB;
  --max:1160px;
  --font-kr:'IBM Plex Sans KR', 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  --font-en:'Jost', 'IBM Plex Sans KR', sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font-kr);font-size:17px;line-height:1.7;
  word-break:keep-all;-webkit-font-smoothing:antialiased;
}
html[lang="en"] body{word-break:normal}
img,svg{display:block;max-width:100%}
a{color:var(--mid)}
a:hover{color:var(--ink)}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}

.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;z-index:100}
.skip:focus{left:16px}

/* ---------- 상단 메뉴 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);backdrop-filter:saturate(1.4) blur(6px);
}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand img{height:56px;width:auto}
.nav{display:flex;align-items:center;gap:28px}
.nav ul{display:flex;gap:28px;list-style:none;margin:0;padding:0}
.nav a{color:var(--ink);text-decoration:none;font-weight:500;font-size:15px}
.nav a:hover{color:var(--accent-dark)}
.lang{display:flex;gap:4px;font-family:var(--font-en);font-size:14px;font-weight:600;letter-spacing:.04em}
.lang a{padding:6px 8px;border-radius:4px;color:var(--slate)}
.lang a[aria-current="true"]{color:var(--ink);background:var(--soft)}
.menu-btn{
  display:none;background:none;border:1px solid var(--line);border-radius:6px;
  width:44px;height:44px;align-items:center;justify-content:center;color:var(--ink);cursor:pointer;
}

/* ---------- 첫 화면 ---------- */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden}
.hero-grid{position:absolute;inset:0;width:100%;height:100%;opacity:.22;pointer-events:none}
.hero .container{position:relative;padding-top:120px;padding-bottom:128px}
.hero-mark{position:absolute;right:24px;top:50%;transform:translateY(-50%);width:300px;height:auto;opacity:.95}
.eyebrow{
  font-family:var(--font-en);font-weight:500;letter-spacing:.18em;text-transform:uppercase;
  font-size:14px;color:#7FD8CF;margin:0 0 20px;
}
.hero h1{font-size:clamp(36px,5.4vw,64px);line-height:1.2;font-weight:600;margin:0 0 24px;letter-spacing:-.01em}
.hero p.lead{font-size:clamp(17px,1.6vw,20px);max-width:620px;color:#D5DEEA;margin:0 0 40px}
.btns{display:flex;flex-wrap:wrap;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;
  border-radius:6px;font-weight:600;font-size:16px;text-decoration:none;border:1px solid transparent;
}
.btn-primary{background:var(--accent-dark);color:#fff}
.btn-primary:hover{background:#09665E;color:#fff}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}

/* ---------- 공통 섹션 ---------- */
section{padding:104px 0}
.section-soft{background:var(--soft)}
.section-head{max-width:720px;margin-bottom:56px}
.section-head .eyebrow{color:var(--accent-dark)}
h2{font-size:clamp(28px,3.4vw,40px);line-height:1.3;color:var(--ink);margin:0 0 16px;font-weight:600}
.section-head p{color:var(--slate);margin:0}

/* ---------- 회사소개 ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:64px;align-items:start}
.about-text p{margin:0 0 18px}
.tap-cards{display:grid;gap:14px}
.tap-card{display:grid;grid-template-columns:72px 1fr;align-items:center;gap:20px;padding:18px 20px;border:1px solid var(--line);border-radius:8px;background:#fff}
.tap-letter{
  width:72px;height:72px;border-radius:6px;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-en);font-size:40px;font-weight:500;color:#fff;
}
.tap-letter.t{background:var(--ink)}
.tap-letter.a{background:var(--accent-dark)}
.tap-letter.p{background:var(--mid)}
.tap-card strong{display:block;font-family:var(--font-en);font-size:18px;letter-spacing:.06em;color:var(--ink)}
.tap-card span{color:var(--slate);font-size:15px}

/* ---------- 사업분야 ---------- */
.services{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service{background:#fff;border:1px solid var(--line);border-radius:10px;padding:36px 32px;display:flex;flex-direction:column}
.service .icon{width:52px;height:52px;color:var(--accent-dark);margin-bottom:24px}
.service h3{font-size:22px;color:var(--ink);margin:0 0 4px}
.service .en{font-family:var(--font-en);font-size:14px;color:var(--slate);letter-spacing:.04em;margin:0 0 16px}
.service p.desc{margin:0 0 20px}
.service ul{margin:auto 0 0;padding:20px 0 0;border-top:1px solid var(--line);list-style:none;display:grid;gap:8px;font-size:15px}
.service li{position:relative;padding-left:18px}
.service li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:2px;background:var(--accent)}

/* ---------- 수행방식 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;list-style:none;margin:0;padding:0;counter-reset:step}
.step{position:relative;padding:0 28px 0 0}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-family:var(--font-en);font-weight:600;font-size:15px;letter-spacing:.08em;color:var(--accent-dark);
  display:block;margin-bottom:14px;
}
.step::after{content:"";position:absolute;top:34px;left:44px;right:12px;height:1px;background:var(--line)}
.step:last-child::after{display:none}
.step h3{font-size:20px;color:var(--ink);margin:12px 0 8px}
.step p{margin:0;color:var(--slate);font-size:15px}

/* ---------- 대표 소개 ---------- */
.ceo{max-width:820px}
.ceo-name{font-size:30px;font-weight:600;color:var(--ink);margin:0}
.ceo-role{color:var(--slate);margin:4px 0 28px}
.ceo ul{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.ceo li{padding-left:20px;position:relative}
.ceo li::before{content:"";position:absolute;left:0;top:.75em;width:8px;height:8px;border:2px solid var(--accent);border-radius:50%}

/* ---------- 문의 ---------- */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.contact dl{margin:0;display:grid;grid-template-columns:96px 1fr;row-gap:18px}
.contact dt{font-weight:600;color:var(--ink)}
.contact dd{margin:0}
.contact-box{background:var(--ink);color:#fff;border-radius:10px;padding:40px}
.contact-box h3{margin:0 0 12px;font-size:22px}
.contact-box p{color:#D5DEEA;margin:0 0 24px}

/* ---------- 푸터 ---------- */
.site-footer{background:#0D1D36;color:#AEBBCC;font-size:14px;padding:48px 0}
.site-footer .container{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap}
.foot-brand{display:flex;align-items:center;gap:14px;color:#fff}
.foot-brand img{width:44px;height:auto}
.foot-brand strong{font-family:var(--font-en);font-weight:600;letter-spacing:.06em;font-size:18px;display:block}
.site-footer p{margin:0}
.site-footer a{color:#fff}

/* ---------- 반응형 ---------- */
@media (max-width:960px){
  .about-grid,.contact,.ceo{grid-template-columns:1fr;gap:40px}
  .hero-mark{display:none}
  .services{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr;row-gap:40px}
  .step::after{display:none}
}
@media (max-width:760px){
  body{font-size:16px}
  section{padding:72px 0}
  .menu-btn{display:inline-flex}
  .nav{
    position:absolute;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:flex-start;padding:16px 24px 24px;gap:16px;display:none;
  }
  .nav.open{display:flex}
  .nav ul{flex-direction:column;gap:4px;width:100%}
  .nav ul a{display:block;padding:10px 0;font-size:17px}
  .brand img{height:38px}
  .hero .container{padding-top:80px;padding-bottom:88px}
  .steps{grid-template-columns:1fr}
  .contact dl{grid-template-columns:72px 1fr}
  .contact-box{padding:28px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}