/* ============================================================
   Logify — brand stylesheet
   Ink #0d0f14 · Blue #3b5bdb · liquid-glass on a pearl aurora
   ============================================================ */

:root{
  /* palette */
  --pearl:#eef1f8;
  --pearl-2:#e7ebf6;
  --ink:#0d0f14;
  --ink-2:#242835;
  --muted:#565c6b;
  --faint:#8a90a1;
  --accent:#3b5bdb;
  --accent-ink:#2c46b8;
  --accent-soft:#e9edff;

  /* per-app hues (used only inside the apps grid) */
  --h-pyeonip:#12a594;
  --h-meet:#ec4f7e;
  --h-tee:#e8912a;
  --h-pet:#8b5cf6;

  /* glass */
  --glass:rgba(255,255,255,.55);
  --glass-strong:rgba(255,255,255,.72);
  --glass-border:rgba(255,255,255,.78);
  --line:rgba(13,15,20,.10);
  --line-soft:rgba(13,15,20,.06);

  /* elevation (blue-tinted) */
  --sh-1:0 2px 10px rgba(13,15,20,.05);
  --sh-2:0 10px 34px rgba(20,28,66,.10);
  --sh-3:0 24px 60px rgba(20,28,66,.16);

  /* type */
  --f-display:'Space Grotesk','Pretendard',system-ui,sans-serif;
  --f-body:'Pretendard','Space Grotesk',system-ui,sans-serif;
  --f-mono:'JetBrains Mono',ui-monospace,'SFMono-Regular',monospace;

  --radius:20px;
  --radius-sm:14px;
  --pill:999px;
  --container:1160px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--f-body);
  color:var(--ink);
  background:var(--pearl);
  line-height:1.6;
  font-size:17px;
  letter-spacing:-0.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}

/* ---------- aurora backdrop (gives the glass something to refract) ---------- */
.aurora{position:fixed;inset:0;z-index:-2;overflow:hidden;background:
  linear-gradient(180deg,#f4f6fc 0%,#e9edf8 55%,#eef1f8 100%)}
.aurora::before,.aurora::after{content:"";position:absolute;border-radius:50%;filter:blur(70px);opacity:.55}
.aurora::before{width:60vw;height:60vw;left:-12vw;top:-18vw;
  background:radial-gradient(circle at 30% 30%,#7d94f2,rgba(125,148,242,0) 70%)}
.aurora::after{width:52vw;height:52vw;right:-14vw;top:6vw;
  background:radial-gradient(circle at 60% 40%,#b8c4ff,rgba(184,196,255,0) 68%)}
.aurora i{position:absolute;width:46vw;height:46vw;left:32vw;top:52vh;border-radius:50%;
  filter:blur(80px);opacity:.4;
  background:radial-gradient(circle at 50% 50%,#9fb0f7,rgba(159,176,247,0) 70%)}
.grain{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.35;
  background-image:radial-gradient(rgba(13,15,20,.045) 1px,transparent 1px);
  background-size:3px 3px}
@media(prefers-reduced-motion:no-preference){
  .aurora::before{animation:drift1 26s ease-in-out infinite alternate}
  .aurora::after{animation:drift2 32s ease-in-out infinite alternate}
  .aurora i{animation:drift1 38s ease-in-out infinite alternate}
}
@keyframes drift1{to{transform:translate(6vw,4vh) scale(1.08)}}
@keyframes drift2{to{transform:translate(-5vw,6vh) scale(1.1)}}

/* ---------- layout ---------- */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
section{position:relative}
.section{padding:clamp(72px,10vw,140px) 0}
.section-tight{padding:clamp(48px,7vw,90px) 0}

/* ---------- shared type ---------- */
.eyebrow{
  font-family:var(--f-mono);font-size:.74rem;font-weight:500;
  letter-spacing:.18em;text-transform:uppercase;color:var(--accent-ink);
  display:inline-flex;align-items:center;gap:.55em;margin:0 0 18px}
.eyebrow::before,.eyebrow::after{color:var(--accent);opacity:.7;font-weight:600}
.eyebrow::before{content:"["}
.eyebrow::after{content:"]"}
.eyebrow.plain::before,.eyebrow.plain::after{content:none}

h1,h2,h3{font-family:var(--f-display);font-weight:700;line-height:1.05;
  letter-spacing:-0.03em;margin:0}
.h-section{font-size:clamp(2rem,4.4vw,3.15rem);color:var(--ink)}
.lede{font-size:clamp(1.05rem,1.6vw,1.28rem);color:var(--muted);max-width:56ch;
  line-height:1.65;letter-spacing:-0.01em}
.accent{color:var(--accent)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.5em;font-family:var(--f-body);
  font-weight:600;font-size:.98rem;padding:.82em 1.5em;border-radius:var(--pill);
  border:1px solid transparent;cursor:pointer;transition:transform .18s ease,
  box-shadow .22s ease,background-color .2s ease,border-color .2s ease;white-space:nowrap}
.btn:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.btn-primary{background:var(--ink);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-3);background:#000}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 26px rgba(59,91,219,.32)}
.btn-accent:hover{transform:translateY(-2px);background:var(--accent-ink);
  box-shadow:0 16px 36px rgba(59,91,219,.4)}
.btn-ghost{background:var(--glass);border-color:var(--glass-border);color:var(--ink);
  backdrop-filter:blur(10px);box-shadow:var(--sh-1)}
.btn-ghost:hover{transform:translateY(-2px);background:#fff;box-shadow:var(--sh-2)}
.btn .arr{transition:transform .2s ease}
.btn:hover .arr{transform:translate(3px,-3px)}

/* ---------- navigation (liquid glass, floating) ---------- */
.nav{position:fixed;top:18px;left:50%;transform:translateX(-50%);z-index:120;
  width:min(1120px,calc(100% - 32px));transition:top .3s ease}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:9px 10px 9px 20px;border-radius:var(--pill);
  background:var(--glass);border:1px solid var(--glass-border);
  -webkit-backdrop-filter:blur(22px) saturate(180%);
  backdrop-filter:blur(22px) saturate(180%);
  box-shadow:var(--sh-2),inset 0 1px 0 rgba(255,255,255,.85);
  transition:background-color .3s ease,box-shadow .3s ease}
.nav.scrolled .nav-inner{background:var(--glass-strong);
  box-shadow:var(--sh-3),inset 0 1px 0 rgba(255,255,255,.9)}
.brand{display:inline-flex;align-items:baseline;gap:0;font-family:var(--f-display);
  font-weight:700;font-size:1.42rem;letter-spacing:-0.04em;line-height:1;padding:2px 4px}
.brand .b-log{color:var(--ink)}
.brand .b-ify{color:var(--accent)}
.brand:focus-visible{outline:3px solid var(--accent);outline-offset:4px;border-radius:8px}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.nav-links a{font-size:.95rem;font-weight:500;color:var(--ink-2);padding:.5em .9em;
  border-radius:var(--pill);transition:color .18s ease,background-color .18s ease;position:relative}
.nav-links a:hover{color:var(--ink);background:rgba(13,15,20,.05)}
.nav-links a.active{color:var(--accent-ink)}
.nav-right{display:flex;align-items:center;gap:10px}
.nav-cta{padding:.62em 1.15em;font-size:.92rem}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--pill);
  border:1px solid var(--glass-border);background:rgba(255,255,255,.5);
  cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .25s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* mobile sheet */
.nav-mobile{display:none;margin-top:10px;padding:14px;border-radius:24px;
  background:var(--glass-strong);border:1px solid var(--glass-border);
  -webkit-backdrop-filter:blur(22px) saturate(180%);backdrop-filter:blur(22px) saturate(180%);
  box-shadow:var(--sh-3);flex-direction:column;gap:4px}
.nav-mobile.open{display:flex;animation:sheet .28s ease}
@keyframes sheet{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.nav-mobile a{padding:.85em 1em;border-radius:12px;font-weight:500;color:var(--ink-2)}
.nav-mobile a:hover{background:rgba(13,15,20,.05)}
.nav-mobile .btn{margin-top:6px;justify-content:center}

/* ---------- HERO ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;
  padding:150px 0 90px}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.hero .container{position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:.6em;font-family:var(--f-mono);
  font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-ink);
  background:var(--glass);border:1px solid var(--glass-border);padding:.5em 1em;
  border-radius:var(--pill);box-shadow:var(--sh-1);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 0 rgba(59,91,219,.5)}
@media(prefers-reduced-motion:no-preference){.hero-badge .dot{animation:pulse 2.4s ease-out infinite}}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(59,91,219,.45)}70%{box-shadow:0 0 0 8px rgba(59,91,219,0)}100%{box-shadow:0 0 0 0 rgba(59,91,219,0)}}
.hero h1{font-size:clamp(2.6rem,7vw,5.4rem);margin:22px 0 0;letter-spacing:-0.045em}
.hero h1 .line{display:block;overflow:hidden}
.hero h1 .line>span{display:inline-block}
.hero-sub{margin:26px 0 0;font-size:clamp(1.08rem,1.8vw,1.4rem);color:var(--muted);
  max-width:52ch;line-height:1.6}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.hero-scroll{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);
  font-family:var(--f-mono);font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--faint);display:flex;flex-direction:column;align-items:center;gap:8px;z-index:2}
.hero-scroll .rail{width:1px;height:38px;background:linear-gradient(var(--faint),transparent)}
@media(prefers-reduced-motion:no-preference){.hero-scroll .rail{animation:rail 2s ease-in-out infinite}}
@keyframes rail{0%,100%{opacity:.3;transform:scaleY(.7)}50%{opacity:1;transform:scaleY(1)}}

/* reveal-on-load lines */
.reveal-up{opacity:0;transform:translateY(120%)}
.loaded .reveal-up{animation:riseIn .9s cubic-bezier(.2,.7,.2,1) forwards}
@keyframes riseIn{to{opacity:1;transform:none}}

/* ---------- generic scroll reveal ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
.rv-d1{transition-delay:.08s}.rv-d2{transition-delay:.16s}.rv-d3{transition-delay:.24s}
.rv-d4{transition-delay:.32s}.rv-d5{transition-delay:.4s}
@media(prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  .reveal-up{opacity:1;transform:none;animation:none}
}

/* ---------- section heading block ---------- */
.section-head{max-width:64ch}
.section-head .lede{margin-top:16px}

/* ---------- VISION / ethos ---------- */
.vision{position:relative}
.vision-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.vision-copy p{color:var(--muted);font-size:1.08rem;margin:0 0 16px;max-width:48ch}
.vision-copy p strong{color:var(--ink);font-weight:600}
.pullquote{font-family:var(--f-display);font-weight:600;font-size:clamp(1.5rem,2.4vw,2rem);
  line-height:1.25;letter-spacing:-0.03em;color:var(--ink);margin:0 0 28px}
.pullquote .accent{position:relative}
.ethos{display:flex;flex-direction:column;gap:14px}
.step{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;
  padding:24px;border-radius:var(--radius);background:var(--glass);
  border:1px solid var(--glass-border);box-shadow:var(--sh-1);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  transition:transform .25s ease,box-shadow .25s ease}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.step .idx{font-family:var(--f-mono);font-size:.8rem;font-weight:600;color:var(--accent);
  border:1px solid var(--accent);border-radius:10px;width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;background:var(--accent-soft)}
.step h3{font-family:var(--f-body);font-weight:700;font-size:1.12rem;letter-spacing:-0.02em}
.step p{margin:6px 0 0;color:var(--muted);font-size:.98rem}

/* ---------- STATS ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{padding:30px 26px;border-radius:var(--radius);background:var(--glass);
  border:1px solid var(--glass-border);box-shadow:var(--sh-1);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}
.stat .num{font-family:var(--f-display);font-weight:700;font-size:clamp(2.2rem,4vw,3rem);
  color:var(--ink);letter-spacing:-0.04em;line-height:1}
.stat .num .u{color:var(--accent)}
.stat .lab{margin-top:10px;color:var(--muted);font-size:.95rem}

/* ---------- APPS ---------- */
.apps-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.app-card{--hue:var(--accent);position:relative;overflow:hidden;
  display:flex;flex-direction:column;padding:0;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--glass-border);box-shadow:var(--sh-1);
  -webkit-backdrop-filter:blur(18px) saturate(160%);backdrop-filter:blur(18px) saturate(160%);
  transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s ease,border-color .3s ease}
.app-card:hover{transform:translateY(-6px);box-shadow:var(--sh-3);
  border-color:color-mix(in srgb,var(--hue) 45%,var(--glass-border))}

/* real app screen, framed as a window */
.app-shot{position:relative;aspect-ratio:16/10;overflow:hidden;
  background:linear-gradient(135deg,color-mix(in srgb,var(--hue) 16%,#fff),color-mix(in srgb,var(--hue) 5%,#fff));
  border-bottom:1px solid color-mix(in srgb,var(--hue) 20%,var(--line))}
.app-shot img{width:100%;height:100%;object-fit:cover;object-position:center top;display:block;
  transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.app-card:hover .app-shot img{transform:scale(1.04)}
.app-shot::after{content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.16)}
.app-shot .tag{position:absolute;top:13px;right:13px;z-index:2}
/* discovery placeholder */
.app-shot.ph{display:grid;place-items:center;
  background:repeating-linear-gradient(45deg,rgba(59,91,219,.05),rgba(59,91,219,.05) 11px,transparent 11px,transparent 22px),var(--pearl-2)}
.app-shot.ph .mark{width:58px;height:58px;border-radius:16px;display:grid;place-items:center;
  font-family:var(--f-display);font-size:1.9rem;font-weight:500;color:var(--accent);
  border:1.5px dashed var(--accent);background:var(--accent-soft)}

.tag{font-family:var(--f-mono);font-size:.64rem;letter-spacing:.12em;text-transform:uppercase;
  padding:.4em .78em;border-radius:var(--pill);font-weight:600;color:#fff;
  background:color-mix(in srgb,var(--hue) 84%,#000);
  box-shadow:0 4px 14px color-mix(in srgb,var(--hue) 45%,transparent)}
.tag.beta{background:rgba(13,15,20,.62)}

.app-body{display:flex;flex-direction:column;gap:12px;padding:22px 26px 26px;flex:1}
.app-name{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.app-name h3{font-family:var(--f-display);font-size:1.45rem;letter-spacing:-0.03em}
.app-name .ko{font-family:var(--f-body);font-weight:600;font-size:.92rem;color:var(--faint)}
.app-gap{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.04em;text-transform:uppercase;
  color:color-mix(in srgb,var(--hue) 55%,var(--muted));margin:-2px 0 0}
.app-body p{margin:0;color:var(--muted);font-size:.98rem;line-height:1.6}
.app-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:16px;border-top:1px solid var(--line-soft)}
.app-link{font-weight:600;font-size:.94rem;color:var(--ink);display:inline-flex;align-items:center;gap:.4em}
.app-link .arr{color:var(--hue);transition:transform .2s ease}
.app-card:hover .app-link .arr{transform:translate(3px,-3px)}
.app-meta{font-family:var(--f-mono);font-size:.7rem;color:var(--faint);letter-spacing:.04em}

/* ---------- CTA band ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:32px;padding:clamp(44px,6vw,80px);
  background:linear-gradient(135deg,#12142099,#0d0f14);color:#fff;box-shadow:var(--sh-3);
  border:1px solid rgba(255,255,255,.08)}
.cta-band::after{content:"";position:absolute;width:60%;height:200%;right:-10%;top:-50%;
  background:radial-gradient(circle,rgba(59,91,219,.55),transparent 62%);filter:blur(20px)}
.cta-band>*{position:relative;z-index:1}
.cta-band h2{font-size:clamp(1.9rem,4vw,3rem);color:#fff;max-width:20ch}
.cta-band p{color:rgba(255,255,255,.72);margin:18px 0 32px;max-width:52ch;font-size:1.1rem}
.cta-band .eyebrow{color:#93a6ff}
.cta-band .eyebrow::before,.cta-band .eyebrow::after{color:#93a6ff}

/* ---------- FOOTER ---------- */
.footer{margin-top:20px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.4),rgba(255,255,255,.72));
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;
  padding:64px 0 40px}
.footer .brand{font-size:1.6rem;margin-bottom:14px}
.footer-blurb{color:var(--muted);font-size:.98rem;max-width:34ch}
.footer-col h4{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--faint);margin:0 0 16px;font-weight:500}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-col a{color:var(--ink-2);font-size:.98rem;transition:color .18s ease}
.footer-col a:hover{color:var(--accent-ink)}
.biz-reg{border-top:1px solid var(--line);padding:26px 0 40px;
  display:flex;flex-wrap:wrap;gap:8px 30px;align-items:baseline}
.biz-reg dl{margin:0;display:flex;gap:8px;font-size:.82rem}
.biz-reg dt{font-family:var(--f-mono);color:var(--faint);letter-spacing:.03em}
.biz-reg dd{margin:0;color:var(--muted)}
.biz-note{width:100%;color:var(--faint);font-size:.8rem;line-height:1.7;margin-top:6px}
.footer-legal{border-top:1px solid var(--line);padding:22px 0;display:flex;
  justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-legal .copy{color:var(--faint);font-size:.85rem;font-family:var(--f-mono);letter-spacing:.02em}
.footer-legal .links{display:flex;gap:22px}
.footer-legal .links a{color:var(--muted);font-size:.88rem}
.footer-legal .links a:hover{color:var(--accent-ink)}

/* ---------- SUBPAGE hero ---------- */
.page-hero{padding:170px 0 40px}
.page-hero h1{font-size:clamp(2.4rem,5.5vw,4rem);margin-top:18px}
.page-hero .lede{margin-top:20px}

/* ---------- CONTACT ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.info-card{padding:30px;border-radius:var(--radius);background:var(--glass);
  border:1px solid var(--glass-border);box-shadow:var(--sh-1);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);margin-bottom:20px}
.info-card h3{font-family:var(--f-body);font-weight:700;font-size:1.05rem;letter-spacing:-0.01em}
.info-row{display:flex;gap:16px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--line-soft)}
.info-row:last-child{border-bottom:0;padding-bottom:0}
.info-row:first-of-type{padding-top:14px}
.info-ic{flex:0 0 40px;width:40px;height:40px;border-radius:12px;background:var(--accent-soft);
  color:var(--accent-ink);display:grid;place-items:center}
.info-ic svg{width:20px;height:20px}
.info-row .k{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--faint)}
.info-row .v{font-size:1rem;color:var(--ink);margin-top:3px;word-break:keep-all}
.info-row .v a:hover{color:var(--accent-ink)}
.hours li{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px dashed var(--line-soft);
  font-size:.95rem;color:var(--muted)}
.hours{list-style:none;margin:14px 0 0;padding:0}
.hours li:last-child{border-bottom:0}
.hours .d{color:var(--ink)}

.form-card{padding:clamp(26px,3vw,38px);border-radius:var(--radius);
  background:var(--glass-strong);border:1px solid var(--glass-border);box-shadow:var(--sh-2);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px;display:flex;flex-direction:column;gap:7px}
.field label{font-size:.86rem;font-weight:600;color:var(--ink-2)}
.field label .req{color:var(--accent)}
.field input,.field select,.field textarea{font-family:var(--f-body);font-size:1rem;
  color:var(--ink);padding:.85em 1em;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.7);transition:border-color .18s ease,box-shadow .18s ease;width:100%}
.field textarea{resize:vertical;min-height:140px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;
  border-color:var(--accent);box-shadow:0 0 0 4px rgba(59,91,219,.14)}
.field .err{font-size:.78rem;color:#d63b53;display:none}
.field.invalid input,.field.invalid textarea,.field.invalid select{border-color:#d63b53}
.field.invalid .err{display:block}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.86rem;color:var(--muted);margin-bottom:22px}
.check input{margin-top:3px;accent-color:var(--accent);width:16px;height:16px;flex:0 0 auto}
.check a{color:var(--accent-ink);text-decoration:underline;text-underline-offset:2px}
.form-note{margin-top:16px;font-size:.82rem;color:var(--faint);text-align:center}
.form-ok{display:none;padding:16px 18px;border-radius:12px;background:var(--accent-soft);
  border:1px solid color-mix(in srgb,var(--accent) 30%,transparent);color:var(--accent-ink);
  font-size:.92rem;margin-bottom:18px}
.form-ok.show{display:block;animation:sheet .3s ease}

/* ---------- LEGAL pages ---------- */
.legal{max-width:820px;margin:0 auto;padding-bottom:40px}
.legal .updated{font-family:var(--f-mono);font-size:.78rem;color:var(--faint);
  letter-spacing:.04em;margin-bottom:36px}
.legal h2{font-family:var(--f-body);font-weight:700;font-size:1.32rem;letter-spacing:-0.02em;
  margin:44px 0 14px;padding-top:20px;border-top:1px solid var(--line-soft)}
.legal h2:first-of-type{border-top:0;padding-top:0;margin-top:0}
.legal h3{font-family:var(--f-body);font-weight:600;font-size:1.05rem;margin:22px 0 8px}
.legal p,.legal li{color:var(--muted);font-size:1rem;line-height:1.8}
.legal ul,.legal ol{padding-left:1.3em;margin:10px 0}
.legal li{margin:6px 0}
.legal strong{color:var(--ink)}
.legal table{width:100%;border-collapse:collapse;margin:16px 0;font-size:.92rem}
.legal th,.legal td{border:1px solid var(--line);padding:10px 13px;text-align:left;vertical-align:top}
.legal th{background:rgba(59,91,219,.06);font-weight:600;color:var(--ink);font-size:.86rem}
.legal td{color:var(--muted)}
.toc{padding:22px 26px;border-radius:var(--radius);background:var(--glass);
  border:1px solid var(--glass-border);box-shadow:var(--sh-1);margin-bottom:40px;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
.toc ol{margin:0;padding-left:1.3em;columns:2;column-gap:32px}
.toc a{color:var(--ink-2);font-size:.92rem;line-height:2}
.toc a:hover{color:var(--accent-ink)}

/* ---------- slide reveal variants ---------- */
.rv.from-left{transform:translateX(-46px)}
.rv.from-right{transform:translateX(46px)}
.rv.from-left.in,.rv.from-right.in{transform:none}

/* ---------- APP FEATURE ROWS ---------- */
.app-feature{display:grid;grid-template-columns:0.92fr 1.08fr;gap:clamp(32px,5vw,64px);
  align-items:center;padding:clamp(44px,6vw,78px) 0}
.app-feature+.app-feature{border-top:1px solid var(--line-soft)}
.app-feature.rev .phone-stage{order:2}

.phone-stage{position:relative;display:grid;place-items:center;padding:20px}
.phone-stage::before{content:"";position:absolute;width:78%;height:66%;border-radius:50%;z-index:0;
  background:radial-gradient(circle,color-mix(in srgb,var(--hue) 42%,transparent),transparent 70%);
  filter:blur(56px);opacity:.8}
.phone{position:relative;z-index:1;width:clamp(220px,20vw,262px);aspect-ratio:9/19;
  border-radius:42px;padding:11px;background:linear-gradient(150deg,#2a2e39,#0d0f14);
  box-shadow:0 34px 66px -22px rgba(20,28,66,.55),inset 0 0 0 1px rgba(255,255,255,.1),
    inset 0 2px 3px rgba(255,255,255,.18)}
.phone::before{content:"";position:absolute;top:17px;left:50%;transform:translateX(-50%);
  width:62px;height:7px;border-radius:5px;background:#08090c;z-index:3}
.phone-screen{position:relative;width:100%;height:100%;border-radius:31px;overflow:hidden;background:#000}
.phone-screen img{width:100%;height:100%;object-fit:cover;object-position:top center;display:block}
.phone-screen::after{content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 22px rgba(0,0,0,.35);border-radius:31px}
.phone .float-tag{position:absolute;z-index:4;top:22px;right:-14px;
  font-family:var(--f-mono);font-size:.6rem;letter-spacing:.1em;text-transform:uppercase;font-weight:600;
  color:#fff;background:var(--hue);padding:.4em .7em;border-radius:var(--pill);
  box-shadow:0 8px 20px color-mix(in srgb,var(--hue) 45%,transparent)}
@media(prefers-reduced-motion:no-preference){
  .phone{animation:float 6.5s ease-in-out infinite}
  .app-feature:nth-of-type(even) .phone{animation-delay:-3.2s}
}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-13px)}}

.app-detail .cat{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;
  font-weight:600;color:color-mix(in srgb,var(--hue) 62%,var(--ink));display:inline-flex;align-items:center;gap:.5em}
.app-detail .cat::before{content:"";width:22px;height:2px;background:var(--hue);border-radius:2px}
.app-name-lg{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin:16px 0 0}
.app-name-lg h3{font-family:var(--f-display);font-size:clamp(1.8rem,3vw,2.4rem);letter-spacing:-0.03em}
.app-name-lg .ko{font-family:var(--f-body);font-weight:600;font-size:1rem;color:var(--faint)}
.gap-line{margin:16px 0 0;font-size:1.05rem;color:var(--ink-2);line-height:1.5}
.gap-line b{color:var(--hue);font-weight:700}
.app-detail>p{margin:14px 0 0;color:var(--muted);font-size:1.02rem;line-height:1.7;max-width:52ch}
.feat-list{list-style:none;padding:0;margin:22px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:12px 24px}
.feat-list li{display:flex;gap:11px;align-items:flex-start;font-size:.96rem;color:var(--ink-2);line-height:1.45}
.feat-list li::before{content:"";flex:0 0 auto;margin-top:7px;width:7px;height:7px;border-radius:2px;
  background:var(--hue);transform:rotate(45deg)}
.app-detail .foot{display:flex;align-items:center;gap:18px;margin-top:26px;flex-wrap:wrap}
.status-pill{font-family:var(--f-mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;
  font-weight:600;padding:.45em .85em;border-radius:var(--pill);
  color:color-mix(in srgb,var(--hue) 68%,var(--ink));
  background:color-mix(in srgb,var(--hue) 13%,transparent);
  border:1px solid color-mix(in srgb,var(--hue) 32%,transparent)}
.detail-link{font-weight:600;font-size:1rem;color:var(--ink);display:inline-flex;align-items:center;gap:.45em}
.detail-link .arr{color:var(--hue);transition:transform .2s ease}
.detail-link:hover .arr{transform:translate(3px,-3px)}

/* next teaser */
.next-teaser{position:relative;overflow:hidden;margin-top:24px;padding:clamp(30px,4vw,44px);
  border-radius:var(--radius);border:1.5px dashed color-mix(in srgb,var(--accent) 45%,var(--line));
  background:var(--glass);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.next-teaser .nt-brackets{font-family:var(--f-mono);color:var(--accent);opacity:.5;font-size:1.4rem}
.next-teaser h3{font-family:var(--f-display);font-size:clamp(1.3rem,2.4vw,1.9rem);letter-spacing:-0.03em}
.next-teaser p{margin:8px 0 0;color:var(--muted);max-width:46ch}

/* ---------- VALUES ---------- */
.values-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.value-card{position:relative;padding:28px 26px 30px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--glass-border);box-shadow:var(--sh-1);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  transition:transform .28s ease,box-shadow .28s ease}
.value-card:hover{transform:translateY(-5px);box-shadow:var(--sh-2)}
.value-card .vn{font-family:var(--f-mono);font-size:.78rem;font-weight:600;color:var(--accent);
  border:1px solid var(--accent);border-radius:9px;width:36px;height:36px;display:grid;place-items:center;
  background:var(--accent-soft);margin-bottom:18px}
.value-card h3{font-family:var(--f-body);font-weight:700;font-size:1.1rem;letter-spacing:-0.02em}
.value-card p{margin:9px 0 0;color:var(--muted);font-size:.95rem;line-height:1.6}

/* ---------- ROADMAP ---------- */
.timeline{position:relative;max-width:800px;margin:8px auto 0;padding-left:6px}
.timeline::before{content:"";position:absolute;left:11px;top:8px;bottom:14px;width:2px;background:var(--line)}
.timeline .prog{position:absolute;left:11px;top:8px;width:2px;height:0;border-radius:2px;
  background:linear-gradient(180deg,var(--accent),color-mix(in srgb,var(--accent) 45%,var(--h-pyeonip)));
  transition:height 1.5s cubic-bezier(.4,0,.2,1)}
.timeline.lit .prog{height:calc(100% - 22px)}
.tl-item{position:relative;padding:0 0 36px 46px}
.tl-item:last-child{padding-bottom:0}
.tl-item .node{position:absolute;left:3px;top:2px;width:18px;height:18px;border-radius:50%;z-index:2;
  background:var(--pearl);border:2px solid var(--line);
  transition:border-color .5s ease,background-color .5s ease,box-shadow .5s ease}
.timeline.lit .tl-item.done .node{border-color:var(--accent);background:#fff;box-shadow:0 0 0 5px var(--accent-soft)}
.timeline.lit .tl-item.now .node{border-color:var(--accent);background:var(--accent);
  box-shadow:0 0 0 5px var(--accent-soft),0 0 20px color-mix(in srgb,var(--accent) 55%,transparent)}
@media(prefers-reduced-motion:no-preference){
  .timeline.lit .tl-item.now .node{animation:nodepulse 2.2s ease-out infinite}
}
@keyframes nodepulse{0%{box-shadow:0 0 0 5px var(--accent-soft),0 0 0 0 rgba(59,91,219,.4)}
  70%{box-shadow:0 0 0 5px var(--accent-soft),0 0 0 12px rgba(59,91,219,0)}
  100%{box-shadow:0 0 0 5px var(--accent-soft),0 0 0 0 rgba(59,91,219,0)}}
.tl-item .yr{font-family:var(--f-mono);font-size:.76rem;letter-spacing:.05em;color:var(--accent-ink);font-weight:600}
.tl-item h3{font-family:var(--f-body);font-weight:700;font-size:1.14rem;margin:5px 0 0;letter-spacing:-0.02em}
.tl-item p{margin:7px 0 0;color:var(--muted);font-size:.97rem;line-height:1.65;max-width:56ch}
.tl-item .plan{display:inline-block;margin-left:9px;font-family:var(--f-mono);font-size:.58rem;
  letter-spacing:.12em;text-transform:uppercase;color:var(--faint);border:1px solid var(--line);
  padding:.22em .55em;border-radius:6px;vertical-align:middle}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .vision-grid{grid-template-columns:1fr;gap:36px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .apps-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .footer .brand-col{grid-column:1/-1}
  .values-grid{grid-template-columns:repeat(2,1fr)}
  .app-feature{grid-template-columns:1fr;gap:8px;text-align:left}
  .app-feature .phone-stage{order:-1 !important;padding:8px 0 22px}
  .app-feature .phone{animation:none}
  .feat-list{grid-template-columns:1fr 1fr}
  .rv.from-left,.rv.from-right{transform:translateY(26px)}
}
@media(max-width:760px){
  .nav-links,.nav-right .btn{display:none}
  .nav-toggle{display:flex}
  .nav-inner{padding:9px 10px 9px 16px}
  .form-row{grid-template-columns:1fr}
  .toc ol{columns:1}
  .footer-legal{flex-direction:column;align-items:flex-start}
  .hero{padding-top:130px}
  .next-teaser{flex-direction:column;align-items:flex-start}
}
@media(max-width:520px){
  .values-grid{grid-template-columns:1fr}
  .feat-list{grid-template-columns:1fr}
}
@media(max-width:520px){
  .footer-top{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  body{font-size:16px}
}