/* ============================================================
   Good Friend Solution — good.hublink.im
   Shared stylesheet · Redesign 2 (Light / Blue system)
   Legacy variable names are remapped to the light palette so
   existing page markup adopts the new design automatically.
   ============================================================ */
:root{
  /* legacy names remapped to light palette */
  --ink:#F6F9FF;          /* page background (was dark) */
  --ink-soft:#ffffff;
  --ink-raised:#EAF1FF;
  --line:#E1E9F8;
  --line-2:#D6E3FB;
  --paper:#ffffff;
  --paper-soft:#E1E9F8;
  --paper-ink:#0A1633;
  --paper-mute:#5B6C8F;
  --amber:#2E6BE6;        /* accent → blue */
  --amber-deep:#1B4FBF;
  --aqua:#2E6BE6;         /* accent → blue */
  --aqua-deep:#1B4FBF;
  --mist:#4A5B7D;         /* secondary text */
  --white:#0A1633;        /* primary text (on light) */
  --disp:"Space Grotesk","Pretendard",sans-serif;
  --body:"Pretendard",system-ui,sans-serif;
  --mono:"Space Grotesk","Pretendard",sans-serif;
  --wrap:1220px;
  --r:18px;
  /* new tokens */
  --blue:#2E6BE6; --blue-d:#1B4FBF; --blue-l:#6E9DF5;
  --bg:#F6F9FF; --bg-soft:#EAF1FF; --card:#FAFCFF;
  --faint:#8496B8; --mute:#5B6C8F; --font:"Pretendard",system-ui,sans-serif;
  --line-3:#D6E3FB; --err:#E5484D;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--body);
  background:var(--bg);
  color:var(--paper-ink);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:var(--blue);color:#fff}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:2px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

.eyebrow{
  font-family:var(--disp);font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;font-weight:600;
  color:var(--blue);display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--blue);opacity:.6}

/* ---------------- NAV ---------------- */
header.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:rgba(246,249,255,.85);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .3s ease,border-color .3s ease;
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--disp);font-weight:600;font-size:17px;letter-spacing:-.01em;color:var(--paper-ink)}
.brand .dot{position:relative;width:30px;height:30px;flex:none}
.brand .dot svg{width:100%;height:100%;display:block;border-radius:9px}
.brand .ko{font-family:var(--body);font-weight:600;font-size:12.5px;color:var(--mute);margin-left:2px;padding-left:9px;border-left:1px solid #C8D6F0}
.nav-links{display:flex;gap:2px;align-items:center}
.nav-links a{font-size:14px;font-weight:600;color:#3A4A6B;transition:color .2s,background .2s;position:relative;padding:9px 12px;border-radius:9px}
.nav-links a:hover{color:var(--blue-d);background:var(--bg-soft)}
.nav-links a.active{color:var(--blue-d)}
.nav-links a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--blue);border-radius:2px}
.nav-cta{
  font-family:var(--body);font-size:14px;font-weight:600;letter-spacing:0;text-transform:none;
  color:#fff!important;background:var(--blue);padding:10px 18px;border-radius:999px;margin-left:6px;
  box-shadow:0 6px 18px rgba(46,107,230,.28);transition:background .2s}
.nav-cta:hover{background:var(--blue-d)}
.nav-cta::after{display:none!important}
.nav-toggle{display:none;background:#fff;border:1px solid var(--line-3);color:var(--paper-ink);width:42px;height:38px;border-radius:10px;font-size:18px;cursor:pointer}

/* ---------------- PAGE HEADER (interior) ---------------- */
.page-head{position:relative;padding:150px 0 68px;overflow:hidden;background:linear-gradient(180deg,#EAF1FF,#F6F9FF)}
.page-head::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(46,107,230,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(46,107,230,.05) 1px,transparent 1px);
  background-size:64px 64px;-webkit-mask-image:radial-gradient(70% 70% at 50% 20%,#000,transparent);mask-image:radial-gradient(70% 70% at 50% 20%,#000,transparent)}
.page-head .wrap{position:relative;z-index:1}
.page-head h1{font-family:var(--disp);font-weight:800;font-size:clamp(32px,5vw,58px);line-height:1.12;letter-spacing:-.035em;margin-top:18px;color:var(--paper-ink)}
.page-head h1 .ko{font-family:var(--body);font-weight:800}
.page-head h1 .warm{color:var(--blue);font-style:normal;font-weight:800}
.page-head p{margin-top:22px;max-width:62ch;color:var(--mist);font-size:16.5px;line-height:1.85}

/* ---------------- SECTIONS ---------------- */
section{position:relative}
.sec-pad{padding:104px 0}
.sec-head{max-width:820px;margin-bottom:52px}
.sec-head h2{font-family:var(--disp);font-weight:800;font-size:clamp(26px,4vw,42px);line-height:1.2;letter-spacing:-.03em;margin-top:14px;color:var(--paper-ink)}
.sec-head h2 .ko{font-family:var(--body);font-weight:800}
.sec-head h2 .warm{color:var(--blue)}
.sec-head p{margin-top:18px;font-size:16.5px;color:var(--mist);max-width:64ch;line-height:1.85}
.warm{color:var(--blue)}

.paper{background:#fff;color:var(--paper-ink);border-top:1px solid #E7EEFB;border-bottom:1px solid #E7EEFB}
.paper .sec-head p{color:var(--mist)}
.paper .eyebrow{color:var(--blue)}
.paper .eyebrow::before{background:var(--blue)}

/* ---------------- BUTTONS ---------------- */
.btnrow{display:flex;gap:12px;flex-wrap:wrap}
.btn{font-family:var(--body);font-size:15px;font-weight:700;letter-spacing:0;text-transform:none;padding:15px 28px;border-radius:12px;transition:all .2s;display:inline-block}
.btn-p{background:var(--blue);color:#fff;box-shadow:0 10px 26px rgba(46,107,230,.3)}
.btn-p:hover{background:var(--blue-d);color:#fff}
.btn-s{background:#fff;border:1px solid var(--line-3);color:var(--blue-d)}
.btn-s:hover{border-color:var(--blue);color:var(--blue-d)}
.paper .btn-s{border-color:var(--line-3);color:var(--blue-d)}
.paper .btn-s:hover{border-color:var(--blue);color:var(--blue-d)}

/* ---------------- PILLARS / CARDS ---------------- */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pillar{background:linear-gradient(180deg,#F8FBFF,#fff);border:1px solid var(--line-2);border-radius:var(--r);padding:34px 30px 36px;position:relative;overflow:hidden;transition:transform .3s,box-shadow .3s,border-color .3s}
.pillar:hover{transform:translateY(-4px);border-color:#B9D0F8;box-shadow:0 16px 40px rgba(46,107,230,.10)}
.pillar .pi{font-family:var(--disp);font-size:11.5px;color:var(--faint);letter-spacing:.16em}
.pillar h3{font-family:var(--disp);font-weight:600;font-size:23px;margin:14px 0 6px;color:var(--paper-ink)}
.pillar .sub{font-size:13.5px;color:var(--blue);font-weight:600;margin-bottom:14px}
.pillar p{font-size:14.5px;color:var(--mist);line-height:1.75}
.pillar .bar{position:absolute;left:30px;top:34px;height:3px;width:38px;background:var(--blue);border-radius:2px}
.pillar .pi{margin-top:20px}

/* card grid */
.eco-group{margin-bottom:52px}
.eco-glabel{display:flex;align-items:center;gap:16px;margin-bottom:22px}
.eco-glabel .gn{font-family:var(--disp);font-size:12px;letter-spacing:.14em;color:var(--blue);text-transform:uppercase;font-weight:600}
.eco-glabel .gt{font-family:var(--disp);font-weight:600;font-size:18px;color:var(--paper-ink)}
.eco-glabel .gl{flex:1;height:1px;background:var(--line)}
.eco-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--line-2);border-radius:16px;padding:26px 24px 28px;transition:border-color .25s,transform .25s,box-shadow .25s,background .25s;position:relative;overflow:hidden}
.card:hover{transform:translateY(-3px);border-color:#B9D0F8;background:#fff;box-shadow:0 14px 34px rgba(46,107,230,.10)}
.card .ch{display:flex;align-items:center;justify-content:space-between;gap:10px}
.card .nm{font-family:var(--disp);font-weight:700;font-size:17.5px;letter-spacing:-.02em;color:var(--paper-ink)}
.card .nm .ko{font-family:var(--body);font-weight:700}
.card .st{font-family:var(--disp);font-size:10.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;padding:5px 10px;border-radius:999px;border:1px solid #C7D9F8;color:var(--blue);background:#fff;white-space:nowrap}
.card .st.live{color:var(--blue);border-color:#C7D9F8}
.card .st.dev{color:var(--blue-l);border-color:#CFE0FF}
.card p{font-size:14px;color:var(--mist);margin-top:13px;line-height:1.75}
.card .go,.card .curl{display:inline-block;margin-top:13px;font-family:var(--disp);font-size:12.5px;font-weight:600;color:var(--blue)}

/* ---------------- TIMELINE ---------------- */
.tl{position:relative;border-left:1px solid var(--line-2)}
.tl-row{display:grid;grid-template-columns:100px 1fr;gap:26px;align-items:start;padding:26px 0 26px 30px;position:relative}
.tl-row::before{content:"";position:absolute;left:-5px;top:32px;width:9px;height:9px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px var(--bg-soft)}
.tl-yr{font-family:var(--disp);font-weight:600;font-size:20px;color:var(--blue);padding-top:0}
.tl-row.future .tl-yr{color:var(--blue-d)}
.tl-body h4{font-family:var(--body);font-weight:700;font-size:18px;color:var(--paper-ink)}
.tl-body p{font-size:15px;color:var(--mist);margin-top:8px;max-width:72ch;line-height:1.8}
.tl-tag{display:inline-block;font-family:var(--disp);font-size:10.5px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);background:var(--bg-soft);padding:4px 9px;border-radius:999px;margin-left:10px;vertical-align:middle}
.tl-tag.dev{background:var(--bg-soft);color:var(--blue-l)}

/* ---------------- VALUE GRID ---------------- */
.val-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border:1px solid var(--line-2);border-radius:20px;overflow:hidden;background:#fff}
.val{padding:36px 34px;border-right:1px solid var(--line-2);border-bottom:1px solid var(--line-2);position:relative}
.val:nth-child(2n){border-right:none}
.val .vn{font-family:var(--disp);font-size:12.5px;font-weight:600;letter-spacing:.12em;color:var(--blue)}
.val h3{font-family:var(--disp);font-weight:700;font-size:20px;margin:14px 0 12px;color:var(--paper-ink);line-height:1.3}
.val h3 .ko{font-family:var(--body);font-weight:700}
.val p{font-size:14.5px;color:var(--mist);line-height:1.8}
.val p b{color:var(--paper-ink);font-weight:700}

/* ---------------- VISION / PANEL ---------------- */
.vision{background:#fff;border-top:1px solid #E7EEFB}
.vlist{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.vrow{background:#fff;padding:30px;display:flex;gap:20px;align-items:flex-start;transition:background .3s}
.vrow:hover{background:var(--bg-soft)}
.vrow .vi{font-family:var(--disp);font-weight:600;font-size:13px;color:var(--blue);padding-top:3px;flex:none;width:40px}
.vrow h4{font-family:var(--body);font-weight:700;font-size:16.5px;color:var(--paper-ink)}
.vrow p{font-size:13.8px;color:var(--mist);margin-top:6px;line-height:1.7}

/* ---------------- INFO TABLE ---------------- */
.info-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line-2);border-radius:16px;overflow:hidden}
.info-table tr{border-bottom:1px solid var(--line-2)}
.info-table tr:last-child{border-bottom:none}
.info-table th{text-align:left;width:34%;padding:18px 26px;font-family:var(--body);font-weight:700;font-size:14.5px;color:var(--paper-ink);background:var(--bg-soft);vertical-align:top}
.info-table td{padding:18px 26px;font-size:14.5px;color:var(--mist);vertical-align:top}

/* ---------------- FAQ ---------------- */
.faq-cat{font-family:var(--disp);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);font-weight:600;margin:48px 0 18px}
.faq-cat:first-of-type{margin-top:0}
.faq{border:1px solid var(--line-2);border-radius:14px;overflow:hidden;margin-bottom:12px;background:#fff}
.faq summary{list-style:none;cursor:pointer;padding:22px 26px;display:flex;justify-content:space-between;align-items:center;gap:18px;font-weight:700;font-size:16px;color:var(--paper-ink);transition:color .2s}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--blue)}
.faq summary .q{display:flex;gap:14px;align-items:baseline}
.faq summary .qn{font-family:var(--disp);font-size:13px;font-weight:600;color:var(--blue);flex:none}
.faq summary .ic{flex:none;width:22px;height:22px;position:relative;transition:transform .3s}
.faq summary .ic::before,.faq summary .ic::after{content:"";position:absolute;background:var(--faint);border-radius:2px}
.faq summary .ic::before{top:10px;left:3px;right:3px;height:2px}
.faq summary .ic::after{left:10px;top:3px;bottom:3px;width:2px;transition:opacity .3s}
.faq[open] summary .ic::after{opacity:0}
.faq[open] summary{color:var(--blue)}
.faq .a{padding:0 26px 24px 56px;color:var(--mist);font-size:14.5px;line-height:1.8}
.faq .a b{color:var(--paper-ink);font-weight:700}

/* ---------------- CONTACT ---------------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.contact-info{display:grid;gap:14px}
.ci-card{background:#fff;border:1px solid var(--line-2);border-radius:16px;padding:24px 26px}
.ci-card .lab{font-family:var(--disp);font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);margin-bottom:8px}
.ci-card .val2{font-size:16px;color:var(--paper-ink);font-weight:700;line-height:1.5}
.ci-card .sub{font-size:13.5px;color:var(--mist);margin-top:4px}
.form-card{background:#fff;border:1px solid var(--line-2);border-radius:20px;padding:34px 32px}
.form-card label{display:block;font-size:13px;font-weight:700;color:var(--paper-ink);margin:16px 0 7px}
.form-card label:first-child{margin-top:0}
.form-card input,.form-card textarea{width:100%;border:1px solid var(--line-2);border-radius:10px;padding:13px 15px;font-family:var(--body);font-size:15px;color:var(--paper-ink);background:#F8FBFF;transition:border-color .2s}
.form-card input:focus,.form-card textarea:focus{outline:none;border-color:var(--blue)}
.form-card textarea{resize:vertical;min-height:120px}
.form-card .btn{margin-top:22px;width:100%;text-align:center;cursor:pointer;border:none}
.map-embed{margin-top:18px;border:1px solid var(--line-2);border-radius:16px;overflow:hidden;height:300px}
.map-embed iframe{width:100%;height:100%;border:0}

/* ---------------- CTA STRIP ---------------- */
.cta{padding:104px 0;text-align:center;position:relative;overflow:hidden;background:linear-gradient(135deg,#1B4FBF,#2E6BE6 55%,#6E9DF5);color:#fff}
.cta .wrap{position:relative;z-index:2}
.cta .eyebrow{color:#CFE0FF}
.cta .eyebrow::before{background:#CFE0FF;opacity:.7}
.cta h2{font-family:var(--disp);font-weight:800;font-size:clamp(28px,5vw,48px);line-height:1.16;letter-spacing:-.03em;color:#fff}
.cta h2 .ko{font-family:var(--body);font-weight:800}
.cta h2 .warm{color:#CFE0FF}
.cta p{margin:22px auto 34px;max-width:52ch;color:#DCE7FF;font-size:16.5px;line-height:1.8}
.cta .btnrow{justify-content:center}
.cta .btn-p{background:#fff;color:var(--blue-d)}
.cta .btn-p:hover{background:var(--bg-soft);color:var(--blue-d)}
.cta .btn-s{background:transparent;border:1px solid rgba(255,255,255,.55);color:#fff}
.cta .btn-s:hover{background:rgba(255,255,255,.12);color:#fff}

/* ---------------- FOOTER (dark) ---------------- */
footer{border-top:none;padding:64px 0 30px;background:#0A1633;color:#9FB0D0}
.foot{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;align-items:flex-start}
.foot .fb{font-family:var(--disp);font-weight:600;font-size:18px;display:flex;align-items:center;gap:11px;margin-bottom:14px;color:#fff}
.foot .fb .dot{width:30px;height:30px}
.foot .fb .dot svg{border-radius:8px}
.foot .fdesc{font-size:13.5px;color:#8294B8;max-width:34ch;line-height:1.7}
.foot .fbiz{font-size:12px;color:#6E80A6;margin-top:14px;line-height:1.9;font-family:var(--disp)}
footer .fbiz{font-size:11.5px;color:#6E80A6;line-height:1.95;font-family:var(--disp);border-top:1px solid #1E2C4E;margin-top:10px;padding-top:16px;max-width:none}
footer .fbiz .fsep{color:#33436B;margin:0 6px}
.foot .fcol h5{font-family:var(--disp);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:#7C8FB6;margin-bottom:14px}
.foot .fcol a,.foot .fcol span{display:block;font-size:13.5px;color:#9FB0D0;margin-bottom:9px;transition:color .2s}
.foot .fcol a:hover{color:#fff}
.foot-note{border-top:1px solid #1E2C4E;margin-top:36px;padding-top:18px;font-size:12px;color:#6E80A6;line-height:1.8}
.foot-note a{color:#9FB0D0}
.foot-base{margin-top:18px;padding-top:20px;border-top:1px solid #1E2C4E;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:12.5px;color:#6E80A6;font-family:var(--disp);letter-spacing:.02em}

/* ---------------- REVEAL ---------------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------------- RESPONSIVE ---------------- */
@media(max-width:860px){
  .nav-links{display:none}
  .nav-links.open{display:flex;position:absolute;top:72px;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;backdrop-filter:blur(14px);padding:8px 20px 18px;gap:0;border-bottom:1px solid var(--line);box-shadow:0 20px 40px rgba(10,22,51,.10)}
  .nav-links.open a{font-size:15px;color:#3A4A6B;padding:13px 8px;border-radius:8px}
  .nav-links.open a.nav-cta{margin:8px 0 0;text-align:center;color:#fff!important}
  .nav-toggle{display:block}
  .pillars{grid-template-columns:1fr}
  .val-grid{grid-template-columns:1fr}
  .val{border-right:none}
  .vlist{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .tl-row{grid-template-columns:70px 1fr;gap:18px}
  .sec-pad{padding:72px 0}
  .page-head{padding:120px 0 56px}
  .info-table th{width:40%;padding:15px 16px}
  .info-table td{padding:15px 16px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none;transition:none}
}

/* language toggle — always visible, outside hamburger */
.nav-inner>.lang{display:inline-flex;align-items:center;font-family:var(--disp);font-size:12px;font-weight:600;letter-spacing:.06em;border:1px solid var(--line-3);border-radius:999px;padding:6px 12px;color:#3A4A6B;margin-left:14px;transition:color .2s,border-color .2s}
.nav-inner>.lang:hover{border-color:var(--blue);color:var(--blue-d)}
.nav-inner .brand{margin-right:auto}
@media(max-width:860px){.nav-inner>.lang{margin-left:0;margin-right:12px}}
@media(max-width:480px){.brand .ko{display:none}.nav-inner>.lang{margin-right:8px;padding:5px 10px}}
@media(max-width:860px){.brand .ko{display:none}}