/* 로고 워드마크 폰트 — Work Sans (모든 OS 동일). 임베드 웹폰트라 로컬 설치 없이도 적용됨. */
@font-face{
  font-family:"Work Sans";
  src:url("fonts/work-sans-800.woff2") format("woff2");   /* ExtraBold(800) — 더 굵게 */
  font-weight:800 900;font-style:normal;font-display:swap;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg:      #ffffff;
  --bg-soft: #f5f6f8;
  --bg-tint: #f0f7f2;
  --card:    #ffffff;
  --line:    #e6e8ec;
  --line-2:  #d7dae0;
  --ink:     #191c22;
  --ink-2:   #4c515d;
  --ink-3:   #838795;
  --green:   #12b46a;
  --green-d: #0a7d47;
  --blue:    #1a72c4;
  --purple:  #6d3fd6;
  --orange:  #c96410;
  --radius:  16px;
  --nav-h:   62px;
  --shadow:  0 1px 2px rgba(20,24,34,.04), 0 8px 24px rgba(20,24,34,.06);
  --shadow-lg:0 4px 12px rgba(20,24,34,.06), 0 24px 56px rgba(20,24,34,.12);
}

html{scroll-behavior:smooth}

body{
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"Segoe UI","Malgun Gothic","Apple SD Gothic Neo","Noto Sans KR",sans-serif;
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{display:block;max-width:100%}

/* ── Nav ─────────────────────────────── */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:var(--nav-h);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 max(24px,4vw);
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(18px) saturate(1.4);
  -webkit-backdrop-filter:blur(18px) saturate(1.4);
  border-bottom:1px solid var(--line);
}
.nav-logo{
  font-size:1.28rem;font-weight:800;letter-spacing:-.045em;
  color:var(--ink);text-decoration:none;line-height:1;
  /* 워드마크 = Work Sans (임베드 웹폰트, 모든 OS 동일). */
  font-family:"Work Sans","Segoe UI",-apple-system,"Malgun Gothic",sans-serif;
}
.nav-logo .dot{color:var(--green)}
.nav-links{display:flex;align-items:center;gap:26px;list-style:none}
.nav-links a{
  color:var(--ink-2);text-decoration:none;font-size:.88rem;
  transition:color .15s;
}
.nav-links a:hover{color:var(--ink)}
.nav-right{display:flex;align-items:center;gap:12px}
.lang-switch{
  display:flex;align-items:center;
  background:var(--bg-soft);border:1px solid var(--line-2);
  border-radius:8px;overflow:hidden;font-size:.76rem;font-weight:600;
}
.lang-switch a{padding:5px 11px;text-decoration:none;color:var(--ink-3);transition:.15s}
.lang-switch a.on{background:var(--ink);color:#fff}
.lang-switch a:hover:not(.on){color:var(--ink)}
@media(max-width:720px){.nav-links{display:none}}

/* ── Buttons ─────────────────────────── */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 24px;border-radius:10px;font-size:.9rem;font-weight:600;
  text-decoration:none;border:1px solid transparent;cursor:pointer;
  transition:transform .15s,box-shadow .15s,background .15s,border-color .15s;
  white-space:nowrap;font-family:inherit;
}
.btn:active{transform:translateY(1px)}
.btn-fill{background:var(--green-d);color:#fff;box-shadow:0 6px 16px rgba(10,125,71,.22)}
.btn-fill:hover{background:#096a3c;box-shadow:0 8px 20px rgba(10,125,71,.28)}
.btn-line{background:#fff;color:var(--ink);border-color:var(--line-2)}
.btn-line:hover{border-color:var(--ink-3);background:var(--bg-soft)}

/* ── Shared headings ─────────────────── */
.eyebrow{
  display:inline-block;font-size:.75rem;font-weight:700;
  letter-spacing:.09em;text-transform:uppercase;color:var(--green-d);
  margin-bottom:14px;
}
h1{
  font-size:clamp(2.3rem,5.4vw,3.9rem);
  font-weight:800;letter-spacing:-.045em;line-height:1.08;color:var(--ink);
}
h1 em{font-style:normal;color:var(--green-d)}
h2{font-size:clamp(1.7rem,3.6vw,2.6rem);font-weight:800;letter-spacing:-.035em;line-height:1.14}
.lead{font-size:clamp(1rem,1.5vw,1.13rem);color:var(--ink-2);line-height:1.7}

/* ── Hero ────────────────────────────── */
.hero{
  padding:calc(var(--nav-h) + 56px) max(24px,5vw) 72px;
  max-width:1160px;margin:0 auto;
}
.hero-grid{
  display:grid;grid-template-columns:1.02fr 1fr;
  gap:clamp(32px,5vw,68px);align-items:center;
}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr;gap:36px}}
.hero-copy h1{margin-bottom:22px}
.hero-copy .lead{max-width:480px;margin-bottom:32px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-note{margin-top:20px;font-size:.82rem;color:var(--ink-3)}
.hero-photo{position:relative}
.hero-photo img{
  width:100%;height:auto;border-radius:var(--radius);
  box-shadow:var(--shadow-lg);
}
.hero-photo::after{
  content:'';position:absolute;inset:auto 0 -18px 0;height:36px;
  background:radial-gradient(60% 100% at 50% 0,rgba(18,180,106,.18),transparent 70%);
  filter:blur(6px);z-index:-1;
}

/* ── Software showcase ───────────────── */
.showcase{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.showcase-inner{
  max-width:1100px;margin:0 auto;padding:84px max(24px,5vw);
  display:grid;grid-template-columns:1.1fr .95fr;gap:clamp(32px,5vw,60px);align-items:center;
}
@media(max-width:820px){.showcase-inner{grid-template-columns:1fr;gap:34px}}
.showcase-media img{
  width:100%;height:auto;border-radius:12px;border:1px solid var(--line-2);
  box-shadow:var(--shadow-lg);background:#0d0d14;
}
.showcase-copy h2{margin-bottom:16px}
.showcase-copy p{color:var(--ink-2);font-size:.95rem;line-height:1.72;margin-bottom:22px}
/* 개발자 서명 안내 — 2단 그리드 아래 전체폭으로 내려 가운데 정렬 */
.showcase-note{grid-column:1 / -1;max-width:760px;margin:18px auto 0}
.dl-warn{margin-top:14px;font-size:.82rem;line-height:1.65;color:var(--ink-2);
  background:var(--bg-soft);border:1px solid var(--line);border-left:3px solid var(--orange);
  border-radius:10px;padding:12px 14px}
.dl-warn b{color:var(--orange)}
/* SmartScreen 안내 목업 — SVG 대신 HTML(번역 가능) */
.ss-guide{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}
@media(max-width:560px){.ss-guide{grid-template-columns:1fr}}
.ss-step{display:flex;flex-direction:column}
.ss-step-label{font-size:.8rem;font-weight:700;color:var(--ink);margin-bottom:6px}
.ss-dialog{flex:1;position:relative;background:#1a6ec9;color:#fff;border-radius:6px;
  padding:15px 16px 13px;box-shadow:var(--shadow);display:flex;flex-direction:column;
  font-family:"Segoe UI","Malgun Gothic","Apple SD Gothic Neo",sans-serif}
.ss-x{position:absolute;top:6px;right:11px;color:#fff;font-size:16px;line-height:1}
.ss-title{font-size:1rem;font-weight:700;margin-bottom:10px}
.ss-dialog .ss-body{font-size:.78rem;line-height:1.55;color:#fff;margin-bottom:10px}
.ss-moreinfo{font-size:.8rem;text-decoration:underline;align-self:flex-start}
.ss-meta{font-size:.78rem;line-height:1.8;color:#fff}
.ss-meta .ss-k{color:#fff}
.ss-btns{margin-top:auto;display:flex;gap:8px;justify-content:flex-end;padding-top:14px}
.ss-btn{display:inline-block;background:#dbe7f6;color:#1b1b1b;border:1px solid #9fbde0;
  border-radius:3px;padding:5px 12px;font-size:.75rem}
.ss-mark{outline:3px solid #ff2a2a;outline-offset:3px;border-radius:3px}
.ticks{list-style:none;display:flex;flex-direction:column;gap:11px;margin-bottom:28px}
.ticks li{position:relative;padding-left:26px;font-size:.92rem;color:var(--ink)}
.ticks li::before{
  content:'';position:absolute;left:0;top:.35em;width:15px;height:15px;
  background:var(--green);border-radius:4px;
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/11px no-repeat;
          mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/11px no-repeat;
}

/* ── Products ────────────────────────── */
.products{padding:88px max(24px,5vw)}
.products-inner{max-width:1100px;margin:0 auto}
.products-header{margin-bottom:44px;max-width:640px}
.product-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:720px){.product-grid{grid-template-columns:1fr}}
.product-card{
  border:1px solid var(--line);border-radius:20px;padding:34px 30px;
  background:var(--card);box-shadow:var(--shadow);
  transition:box-shadow .2s,transform .2s;
  display:flex;flex-direction:column;
}
.product-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.product-card.pc-b{background:linear-gradient(160deg,#f6fbf8,#ffffff)}
.product-kicker{
  font-size:.73rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  margin-bottom:16px;display:inline-flex;align-items:center;gap:6px;
}
.kicker-free{color:var(--blue)}
.kicker-device{color:var(--green-d)}
.product-card h3{font-size:1.4rem;font-weight:800;letter-spacing:-.035em;margin-bottom:11px}
.product-card p{font-size:.92rem;color:var(--ink-2);line-height:1.7;margin-bottom:22px}
.product-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.meta-chip{
  font-size:.76rem;font-weight:600;padding:5px 12px;border-radius:20px;
  border:1px solid var(--line-2);color:var(--ink-2);background:var(--bg-soft);
}
.product-card .btn{margin-top:auto;align-self:flex-start}
.card-figure{margin:0 0 22px}
.card-figure img{width:100%;height:auto;border-radius:12px;border:1px solid var(--line);box-shadow:var(--shadow);display:block}
.card-figure figcaption{margin-top:8px;font-size:.78rem;color:var(--ink-3);text-align:center}
.product-card .product-note{
  font-size:.76rem;color:var(--ink-3);line-height:1.55;
  background:var(--bg-soft);border:1px solid var(--line);
  border-radius:10px;padding:10px 12px;margin-bottom:22px;
}
.product-card .product-note b{color:var(--orange);font-weight:700}
.kicker-app{color:var(--purple)}
/* 앱 카드 — 폰 화면은 작게 두고, 그 아래 QR + 스토어 배지를 나란히 */
.card-figure.figure-sm img{max-width:220px;margin:0 auto}
.app-get{display:flex;flex-wrap:wrap;justify-content:center;gap:28px;margin-bottom:22px}
.app-get-item{display:flex;flex-direction:column;align-items:center;gap:10px}
.app-qr{
  width:112px;height:112px;display:block;background:#fff;
  border:1px solid var(--line);border-radius:10px;padding:6px;
}
.store-badge{
  display:inline-flex;align-items:center;gap:9px;padding:7px 14px;border-radius:9px;
  background:var(--ink);color:#fff;text-decoration:none;transition:opacity .15s;
}
.store-badge:hover{opacity:.85}
.store-badge span{font-size:.86rem;font-weight:700;letter-spacing:-.01em;line-height:1.15}
.store-badge small{display:block;font-size:.6rem;font-weight:500;opacity:.72;letter-spacing:.02em}

/* ── Metrics strip ───────────────────── */
.metrics-strip{background:var(--bg-tint);padding:76px max(24px,5vw);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.metrics-inner{max-width:1100px;margin:0 auto}
.metrics-inner .lead{margin-top:12px;max-width:560px}
.metrics-grid{display:flex;flex-wrap:wrap;gap:9px;margin-top:34px}
.m-chip{padding:8px 15px;border-radius:9px;font-size:.82rem;font-weight:600;border:1px solid;background:#fff}
.mc-cpu{border-color:rgba(18,180,106,.35);color:var(--green-d)}
.mc-gpu{border-color:rgba(45,155,240,.35);color:var(--blue)}
.mc-mem{border-color:rgba(160,96,255,.35);color:var(--purple)}
.mc-sys{border-color:rgba(255,140,58,.4);color:var(--orange)}

/* ── How it works ────────────────────── */
.how{padding:88px max(24px,5vw)}
.how-inner{max-width:1100px;margin:0 auto}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:44px}
@media(max-width:680px){.steps{grid-template-columns:1fr}}
.step{padding:30px 26px;border:1px solid var(--line);border-radius:16px;background:var(--card);box-shadow:var(--shadow)}
.step-num{font-size:.8rem;font-weight:800;letter-spacing:.08em;color:var(--green-d);margin-bottom:14px}
.step h4{font-size:1.05rem;font-weight:700;margin-bottom:9px;letter-spacing:-.02em}
.step p{font-size:.88rem;color:var(--ink-2);line-height:1.68}

/* ── Download ────────────────────────── */
.download{padding:88px max(24px,5vw)}
.download-inner{max-width:1100px;margin:0 auto}
.dl-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:44px}
@media(max-width:680px){.dl-grid{grid-template-columns:1fr}}
.dl-card{border:1px solid var(--line);border-radius:20px;padding:34px 30px;background:var(--card);box-shadow:var(--shadow)}
.dl-card.primary{background:linear-gradient(160deg,#f2fbf6,#ffffff);border-color:rgba(18,180,106,.28)}
.dl-icon{width:44px;height:44px;border-radius:11px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.dl-icon svg{width:22px;height:22px}
.dl-icon.hw{background:rgba(18,180,106,.12);color:var(--green-d)}
.dl-icon.sw{background:rgba(45,155,240,.12);color:var(--blue)}
.dl-card h3{font-size:1.22rem;font-weight:800;letter-spacing:-.03em;margin-bottom:9px}
.dl-card p{font-size:.9rem;color:var(--ink-2);line-height:1.65;margin-bottom:22px}
.dl-note{font-size:.78rem;color:var(--ink-3);margin-top:14px}
.quickstart{margin-top:18px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px;box-shadow:var(--shadow)}
.quickstart .qs-label{font-size:.76rem;font-weight:700;color:var(--ink-3);text-transform:uppercase;letter-spacing:.08em;margin-bottom:16px}
.quickstart ol{color:var(--ink-2);font-size:.9rem;line-height:2;padding-left:20px}
.quickstart code{background:var(--bg-soft);border:1px solid var(--line);padding:2px 8px;border-radius:5px;color:var(--green-d);font-size:.84rem}

/* ── Footer ──────────────────────────── */
footer{border-top:1px solid var(--line);padding:52px max(24px,5vw) 34px;background:var(--bg-soft)}
.footer-inner{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid var(--line)}
@media(max-width:680px){.footer-inner{grid-template-columns:1fr;gap:28px}}
.footer-brand{font-size:1.25rem;font-weight:800;letter-spacing:-.045em;line-height:1;margin-bottom:12px;font-family:"Work Sans","Segoe UI",-apple-system,"Malgun Gothic",sans-serif}
.footer-brand .dot{color:var(--green)}
.footer-desc{font-size:.85rem;color:var(--ink-3);line-height:1.65;max-width:280px}
.footer-col h5{font-size:.72rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3);margin-bottom:15px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:.86rem;color:var(--ink-2);text-decoration:none;transition:color .15s}
.footer-col a:hover{color:var(--green-d)}
.footer-bottom{max-width:1100px;margin:24px auto 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;font-size:.78rem;color:var(--ink-3)}
.footer-bottom a{color:var(--ink-3);text-decoration:none;transition:color .15s}
.footer-bottom a:hover{color:var(--green-d)}

/* ── Reveal animation ────────────────── */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .55s cubic-bezier(.22,1,.36,1),transform .55s cubic-bezier(.22,1,.36,1)}
.reveal.on{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}
.reveal.d2{transition-delay:.15s}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--bg-soft)}
::-webkit-scrollbar-thumb{background:#cdd1d8;border-radius:6px;border:2px solid var(--bg-soft)}