/* ============================================================
   2049 Labs + An — Design system v4 (2026)
   iOS-native editorial style. White and #f5f5f7 surfaces,
   hairlines instead of shadows, system typography with tight
   tracking, one restrained accent. No gradients, no bento,
   no decorative depth — hierarchy comes from type and space.
   Shared by 2049labs.dev (company) and an.2049labs.dev (project).
   ============================================================ */

:root{
  --bg:#ffffff;
  --alt:#f5f5f7;
  --ink:#1d1d1f;
  --muted:#6e6e73;
  --faint:#86868b;
  --line:rgba(0,0,0,.08);
  --teal:#0b6e63;
  --teal-dark:#084f47;
  --radius:20px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Be Vietnam Pro","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;line-height:1.6;font-size:16.5px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
::selection{background:rgba(11,110,99,.18)}
a{color:var(--teal);text-decoration:none;font-weight:500}
a:hover{text-decoration:underline}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:6px}
.wrap{max-width:1024px;margin:0 auto;padding:0 22px}

/* ---------- cross-document view transitions ---------- */
@view-transition{navigation:auto}
::view-transition-old(root){animation:vt-out .2s ease both}
::view-transition-new(root){animation:vt-in .26s ease both}
@keyframes vt-out{to{opacity:0}}
@keyframes vt-in{from{opacity:0}}

/* ---------- header (frosted, iOS-style) ---------- */
header.site{position:sticky;top:0;background:rgba(255,255,255,.72);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--line);z-index:50}
.nav{display:flex;align-items:center;gap:22px;padding:13px 0;flex-wrap:wrap}
.logo{font-weight:700;font-size:19px;color:var(--ink);letter-spacing:-.02em}
.logo span{color:var(--teal)}
.logo .by{font-weight:500;font-size:13.5px;color:var(--faint);letter-spacing:0}
.logo:hover{text-decoration:none}
.nav .links{display:flex;gap:20px;margin-left:auto;flex-wrap:wrap;align-items:center}
.nav .links a{color:var(--ink);font-size:14px;font-weight:400}
.nav .links a:hover{text-decoration:none;color:var(--teal)}
.nav .links a.active{font-weight:700}
.nav .links a.ext{color:var(--faint)}
.nav .links a.lang{color:var(--teal);font-weight:600;font-size:13.5px}
.nav .links a.btn{color:#fff;font-size:13.5px;padding:7px 16px}
.nav .links a.btn:hover{color:#fff}

/* ---------- buttons (iOS pill) ---------- */
.btn{display:inline-block;background:var(--ink);color:#fff!important;padding:11px 24px;border-radius:980px;font-weight:600;font-size:15px;transition:opacity .15s ease, background .15s ease}
.btn:hover{text-decoration:none;opacity:.86}
.btn:active{opacity:.7}
.btn.ghost{background:transparent;color:var(--ink)!important;box-shadow:inset 0 0 0 1px rgba(0,0,0,.4)}
.btn.ghost:hover{box-shadow:inset 0 0 0 1.5px rgba(0,0,0,.65);opacity:1}

/* ---------- hero ---------- */
.hero{padding:84px 0 44px}
.hero h1{font-size:clamp(2.55rem,5.6vw,3.95rem);line-height:1.08;max-width:820px;font-weight:700;letter-spacing:-.025em;color:var(--ink)}
.hero p{margin-top:20px;font-size:clamp(1.05rem,1.6vw,1.25rem);line-height:1.55;max-width:720px;color:var(--muted);font-weight:400}
.hero p strong{color:var(--ink);font-weight:600}
.hero .cta{margin-top:28px}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:12px;font-weight:600;color:var(--faint);margin-bottom:18px}

/* ---------- sections ---------- */
section{padding:64px 0}
section.alt{background:var(--alt)}
h2{font-size:clamp(1.7rem,3.4vw,2.35rem);line-height:1.15;margin-bottom:14px;font-weight:700;letter-spacing:-.022em}
h3{font-size:19px;margin-bottom:8px;font-weight:600;letter-spacing:-.015em}
.lede{color:var(--muted);font-size:17.5px;line-height:1.6;max-width:780px;font-weight:400}
.cta{display:flex;gap:26px;flex-wrap:wrap;align-items:center}
.more{font-size:16.5px;color:var(--teal);font-weight:500}
.shead{margin-bottom:6px}

/* ---------- list rows (projects, selected work) ---------- */
.rows{border-top:1px solid var(--line)}
.row{display:flex;justify-content:space-between;align-items:center;gap:22px;padding:24px 8px;border-bottom:1px solid var(--line);color:var(--ink)}
a.row{transition:background .15s ease}
a.row:hover{text-decoration:none;background:#fafafc}
.row h3{font-size:20.5px;margin:0 0 3px}
.row p{color:var(--muted);font-size:15.5px;max-width:640px}
.chev{font-size:24px;line-height:1;color:var(--faint);font-weight:300;flex:0 0 auto}

/* ---------- flat tiles (content grids on inner pages) ---------- */
.grid{display:grid;gap:18px;margin-top:32px}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c2{grid-template-columns:repeat(2,1fr)}
section .grid>div p{color:var(--muted);font-size:15.5px}
.card{background:var(--alt);border-radius:var(--radius);padding:26px}
section.alt .card{background:#fff}
.card p{color:var(--muted);font-size:15.5px}
.card .num{display:block;color:var(--teal);font-weight:700;font-size:15px;margin-bottom:10px;letter-spacing:.02em}

/* ---------- stats (rule-top figures) ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;margin-top:34px}
.stat{border-top:2px solid var(--ink);padding-top:16px}
.stat .big{font-size:33px;font-weight:700;color:var(--ink);letter-spacing:-.02em;line-height:1.15}
.stat p{color:var(--muted);font-size:14.5px;margin-top:6px}

/* ---------- tiers ---------- */
.tier{display:flex;gap:18px;background:var(--alt);border-radius:18px;padding:22px 24px;margin-top:14px}
.tier .tag{flex:0 0 auto;font-weight:700;color:var(--teal-dark);font-size:13.5px;letter-spacing:.06em;padding-top:3px}
.tier p{color:var(--muted);font-size:15.5px}

/* ---------- note ---------- */
.note{background:var(--alt);border-radius:18px;padding:22px 24px;margin-top:28px;color:var(--ink);font-size:15.5px}
.note strong{color:var(--ink)}

.tag{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--teal-dark);margin-bottom:12px}

ul.clean{margin:10px 0 0 20px;color:var(--muted)}
ul.clean li{margin-bottom:7px}

/* ---------- pilot form ---------- */
form.pilot{background:var(--alt);border-radius:24px;padding:30px;margin-top:28px}
form.pilot label{display:block;font-weight:600;font-size:14.5px;margin:18px 0 7px}
form.pilot input,form.pilot select{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;font-size:15.5px;font-family:inherit;font-weight:400;color:var(--ink);background:#fff;appearance:none}
form.pilot input:focus,form.pilot select:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(11,110,99,.22)}
form.pilot .check{display:flex;gap:10px;align-items:flex-start;margin-top:20px;font-weight:400}
form.pilot .check input{width:20px;height:20px;margin-top:2px;accent-color:var(--teal)}
form.pilot button{margin-top:24px;border:0;cursor:pointer;font-family:inherit}
.small{font-size:13px;color:var(--faint)}

/* ---------- footer ---------- */
footer{background:var(--alt);color:var(--muted);font-size:12.5px;line-height:1.7;padding:38px 0;margin-top:0;border-top:1px solid var(--line)}
footer a{color:#424245;font-weight:400}
footer strong{color:var(--ink);font-size:13px}
footer .cols{display:flex;gap:40px;flex-wrap:wrap;justify-content:space-between}

/* ---------- scroll reveals (very subtle, progressive) ---------- */
@supports (animation-timeline: view()){
  .card,.row,.stat,.tier,.note{animation:rise .6s ease both;animation-timeline:view();animation-range:entry 0% entry 28%}
}
@keyframes rise{from{opacity:0;translate:0 12px}to{opacity:1;translate:0 0}}

/* ---------- responsive ---------- */
@media(max-width:860px){
  .grid.c3,.grid.c2{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .hero{padding:60px 0 36px}
  section{padding:48px 0}
}
@media(max-width:560px){
  .stats{grid-template-columns:1fr}
  .tier{flex-direction:column;gap:6px}
  .nav{gap:14px}
  .nav .links{gap:14px}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}

/* ---------- v4.1 fixes (post eye-check, 23/10) ---------- */
section.alt .mark{background:#fff}
body.an .nav .links{gap:15px}
body.an .nav .links a{font-size:13.5px}
@media(max-width:1100px){body.an .logo .by{display:none}}
.hero.slim{padding-bottom:6px}
.row>div{flex:1}
.mark{flex:0 0 auto;width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;background:#ebebef;border:1px solid rgba(0,0,0,.07);color:var(--ink);letter-spacing:-.01em}
.mark.teal{background:var(--teal-dark);color:#fff}
.mark.dim{color:var(--faint);font-size:25px;font-weight:300}
.status{flex:0 0 auto;font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--faint);white-space:nowrap}
.rich .card{padding:30px}
.rich .card h3{font-size:20.5px;margin-bottom:10px}
.rich .card p{font-size:16px;line-height:1.65}

@media(max-width:1100px){
  .nav .links{gap:14px}
  .nav .links a{font-size:13.5px}
}
@media(max-width:820px){
  .nav{flex-direction:column;align-items:flex-start;gap:10px}
  .nav .links{margin-left:0;row-gap:8px;column-gap:16px}
}
@media(max-width:640px){
  .nav .links a.ext{display:none}
  .status{display:none}
  .mark{width:44px;height:44px;font-size:16px;border-radius:12px}
}

/* ---------- v4.2 generated media (23/10) ---------- */
.visual-band{padding-bottom:10px}
.hero-visual{width:100%;height:auto;display:block;border-radius:28px}
.appicon{width:52px;height:52px;border-radius:14px;object-fit:cover;flex:0 0 auto;display:block}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:42px;align-items:center}
.hero-phone{width:100%;height:auto;display:block;border-radius:26px}
.wide-img{width:100%;height:auto;display:block;border-radius:24px;margin:28px 0 4px}
@media(max-width:880px){.hero-grid{grid-template-columns:1fr}.hero-phone{max-width:540px}}
@media(max-width:640px){.appicon{width:44px;height:44px;border-radius:12px}}