/* ==========================================================
   Vina Sabrina — Portfolio
   White canvas · blue actions · editorial type
   ========================================================== */
:root{
  --bg:#ffffff;
  --ink:#0a1020;
  --ink-2:#38425c;
  --muted:#667089;
  --line:#e6eaf3;
  --blue:#1d5cff;
  --blue-d:#0e3bd0;
  --blue-l:#6f9bff;
  --blue-s:#eef3ff;
  --blue-ss:#f7f9ff;
  --shadow-s:0 1px 2px rgba(10,16,32,.04),0 8px 24px -12px rgba(10,16,32,.12);
  --shadow-m:0 2px 4px rgba(10,16,32,.04),0 24px 60px -24px rgba(16,40,120,.28);
  --glow:0 10px 30px -8px rgba(29,92,255,.55);
  --sans:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --serif:'Instrument Serif','Iowan Old Style',Georgia,serif;
  --ease:cubic-bezier(.22,1,.36,1);
  --ease-io:cubic-bezier(.76,0,.24,1);
  --pad:clamp(20px,5vw,56px);
  --max:1240px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:auto;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body.is-loading,body.no-scroll{overflow:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul{list-style:none}
::selection{background:var(--blue);color:#fff}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}

/* ---------- Buttons ---------- */
.btn{position:relative;display:inline-flex;align-items:center;gap:.6rem;padding:.95rem 1.6rem;border-radius:999px;
  background:linear-gradient(180deg,#3a74ff,var(--blue) 55%,var(--blue-d));color:#fff;font-weight:600;font-size:.95rem;letter-spacing:.01em;
  box-shadow:var(--glow),inset 0 1px 0 rgba(255,255,255,.35);overflow:hidden;isolation:isolate;transition:box-shadow .3s,transform .4s var(--ease);will-change:transform}
.btn::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.45) 50%,transparent 70%);transform:translateX(-120%);transition:transform .8s var(--ease);z-index:-1}
.btn:hover::after{transform:translateX(120%)}
.btn:hover{box-shadow:0 14px 36px -8px rgba(29,92,255,.7),inset 0 1px 0 rgba(255,255,255,.35)}
.btn:active{transform:scale(.97)}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .4s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn-ghost{background:#fff;color:var(--blue);box-shadow:inset 0 0 0 1.5px var(--blue)}
.btn-ghost:hover{background:var(--blue-s);box-shadow:inset 0 0 0 1.5px var(--blue)}
.btn-ghost::after{display:none}
.btn-sm{padding:.65rem 1.2rem;font-size:.85rem}

/* ---------- Preloader ---------- */
#preloader{position:fixed;inset:0;z-index:1000;background:#fff;display:grid;place-items:center}
.pl-inner{width:min(320px,78vw);text-align:center}
.pl-mono{font-family:var(--serif);font-style:italic;font-size:clamp(4rem,14vw,6.5rem);line-height:1;display:flex;justify-content:center;color:var(--ink)}
.pl-mono span{display:inline-block;opacity:0;transform:translateY(40%);animation:plIn 1s var(--ease) forwards}
.pl-mono span:nth-child(2){color:var(--blue);animation-delay:.12s}
@keyframes plIn{to{opacity:1;transform:none}}
.pl-count{margin-top:1.2rem;font-weight:700;font-size:1rem;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:.04em}
.pl-count i{font-style:normal;color:var(--muted);margin-left:2px}
.pl-line{height:2px;background:var(--line);margin:.8rem auto 0;border-radius:2px;overflow:hidden}
.pl-line span{display:block;height:100%;width:100%;background:var(--blue);transform:scaleX(0);transform-origin:left}
.pl-sub{margin-top:.9rem;font-size:.72rem;letter-spacing:.28em;text-transform:uppercase;color:var(--muted)}

/* ---------- Column wipe ---------- */
#wipe{position:fixed;inset:0;z-index:900;display:grid;grid-template-columns:repeat(6,1fr);pointer-events:none}
#wipe i{display:block;background:linear-gradient(180deg,var(--blue),var(--blue-d));transform:scaleY(0);transform-origin:bottom;margin-right:-1px;will-change:transform}
body.wiping #wipe{pointer-events:auto}

/* ---------- Cursor & progress ---------- */
#cursor{position:fixed;left:0;top:0;z-index:1200;width:12px;height:12px;border-radius:50%;background:var(--blue);pointer-events:none;opacity:0;
  transform:translate3d(-50%,-50%,0);transition:width .35s var(--ease),height .35s var(--ease),background .3s,opacity .3s;display:grid;place-items:center;mix-blend-mode:normal}
#cursor span{font-size:.72rem;font-weight:700;color:#fff;letter-spacing:.06em;opacity:0;transition:opacity .2s}
#cursor.show{opacity:1}
#cursor.hover{width:44px;height:44px;background:rgba(29,92,255,.16);backdrop-filter:blur(2px)}
#cursor.label{width:84px;height:84px;background:var(--blue)}
#cursor.label span{opacity:1}
@media (hover:none),(pointer:coarse){#cursor{display:none}}
@media (hover:hover) and (pointer:fine){body.has-cursor,body.has-cursor a,body.has-cursor button{cursor:none}}
#progress{position:fixed;left:0;top:0;height:3px;width:100%;z-index:800;background:linear-gradient(90deg,var(--blue-l),var(--blue));transform:scaleX(0);transform-origin:left}

/* ---------- Header ---------- */
#header{position:fixed;top:0;left:0;right:0;z-index:700;display:flex;align-items:center;justify-content:space-between;gap:1.5rem;
  padding:14px var(--pad);transition:transform .6s var(--ease),background .4s,box-shadow .4s,padding .4s}
#header.scrolled{background:rgba(255,255,255,.82);backdrop-filter:saturate(1.6) blur(16px);box-shadow:0 1px 0 var(--line);padding-top:10px;padding-bottom:10px}
#header.hide{transform:translateY(-110%)}
.logo{font-weight:800;font-size:1.5rem;letter-spacing:-.04em}
.logo i{color:var(--blue);font-style:normal}
.nav{display:flex;gap:2.2rem;margin-left:auto}
.nav a{position:relative;font-weight:600;font-size:.92rem;color:var(--ink-2);padding:.3rem 0;transition:color .3s}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--blue);transform:scaleX(0);transform-origin:right;transition:transform .5s var(--ease)}
.nav a:hover,.nav a.active{color:var(--ink)}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1);transform-origin:left}
.burger{display:none;width:44px;height:44px;border-radius:50%;background:var(--blue);position:relative;box-shadow:var(--glow);z-index:710}
.burger i{position:absolute;left:13px;right:13px;height:2px;background:#fff;border-radius:2px;transition:transform .5s var(--ease)}
.burger i:first-child{top:18px}.burger i:last-child{top:25px}
.burger[aria-expanded=true] i:first-child{transform:translateY(3.5px) rotate(45deg)}
.burger[aria-expanded=true] i:last-child{transform:translateY(-3.5px) rotate(-45deg)}
.menu{position:fixed;inset:0;z-index:690;background:#fff;display:grid;align-content:center;padding:var(--pad);visibility:hidden;opacity:0;transition:opacity .4s,visibility 0s .4s}
.menu.open{visibility:visible;opacity:1;transition:opacity .4s}
.menu nav{display:grid;gap:.4rem}
.menu a{font-family:var(--serif);font-style:italic;font-size:clamp(2.8rem,13vw,4.5rem);line-height:1.1;display:flex;align-items:baseline;gap:1rem;color:var(--ink)}
.menu a span{font-family:var(--sans);font-style:normal;font-size:.8rem;font-weight:700;color:var(--blue)}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100svh;display:grid;align-items:center;padding:120px 0 80px;overflow:hidden}
.bg-grid{position:absolute;inset:0;background-image:radial-gradient(circle,rgba(29,92,255,.22) 1px,transparent 1.4px);background-size:28px 28px;
  -webkit-mask-image:radial-gradient(70% 70% at 70% 40%,#000 0,transparent 75%);mask-image:radial-gradient(70% 70% at 70% 40%,#000 0,transparent 75%)}
.orb{position:absolute;border-radius:50%;filter:blur(70px);opacity:.55;will-change:transform}
.orb-a{width:520px;height:520px;right:-120px;top:-60px;background:radial-gradient(circle,#b9d0ff,transparent 65%);animation:float 14s ease-in-out infinite}
.orb-b{width:420px;height:420px;left:-140px;bottom:-120px;background:radial-gradient(circle,#d7e4ff,transparent 65%);animation:float 18s ease-in-out infinite reverse}
@keyframes float{50%{transform:translate3d(30px,-40px,0) scale(1.08)}}
.hero-grid{position:relative;display:grid;grid-template-columns:1.25fr .85fr;gap:clamp(24px,5vw,80px);align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:.6rem;font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);
  background:var(--blue-s);padding:.5rem .9rem;border-radius:999px}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 0 rgba(29,92,255,.5);animation:ping 2s infinite}
@keyframes ping{70%{box-shadow:0 0 0 9px rgba(29,92,255,0)}100%{box-shadow:0 0 0 0 rgba(29,92,255,0)}}
.hero-title{margin:1.4rem 0 1.4rem;line-height:.92;letter-spacing:-.045em}
.ht-small{display:block;font-family:var(--serif);font-style:italic;font-size:clamp(1.8rem,4vw,3rem);color:var(--muted);letter-spacing:-.01em;margin-bottom:.3rem}
.ht-big{display:block;font-weight:800;font-size:clamp(3.6rem,11.5vw,9.4rem)}
.ht-serif{font-family:var(--serif);font-style:italic;font-weight:400;color:var(--blue);letter-spacing:-.03em}
.hero-lead{max-width:34rem;font-size:clamp(1.05rem,1.6vw,1.3rem);color:var(--ink-2);line-height:1.55}
.hero-lead em{font-family:var(--serif);font-size:1.18em;color:var(--ink)}
.hero-cta{display:flex;flex-wrap:wrap;gap:.9rem;margin-top:2rem}
.hero-tags{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:2rem}
.hero-tags li,.pills li{font-size:.78rem;font-weight:600;color:var(--ink-2);border:1px solid var(--line);background:#fff;padding:.35rem .8rem;border-radius:999px}

.hero-visual{display:grid;place-items:center}
.portrait{position:relative;width:min(100%,420px);aspect-ratio:4/5;transform-style:preserve-3d;transition:transform .3s}
.portrait-frame{position:absolute;inset:0;border-radius:32px;overflow:hidden;background:linear-gradient(150deg,#e8f0ff,#c9dbff 55%,#a9c4ff);
  box-shadow:var(--shadow-m),0 0 0 8px #fff,0 0 0 9px var(--line)}
.portrait-frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1}
.portrait-fallback{position:absolute;inset:0;display:grid;place-items:center}
.portrait-fallback span{font-family:var(--serif);font-style:italic;font-size:clamp(6rem,16vw,10rem);color:#fff;text-shadow:0 10px 40px rgba(14,59,208,.35);letter-spacing:-.04em}
.portrait-frame::before{content:"";position:absolute;inset:0;z-index:0;background:radial-gradient(circle at 25% 15%,rgba(255,255,255,.7),transparent 45%),radial-gradient(circle at 80% 90%,rgba(29,92,255,.35),transparent 50%)}
.scan{position:absolute;left:0;right:0;height:35%;z-index:2;background:linear-gradient(180deg,transparent,rgba(255,255,255,.35),transparent);top:-40%;animation:scan 5s 1.5s ease-in-out infinite}
@keyframes scan{0%{top:-40%}60%,100%{top:110%}}
.chip{position:absolute;z-index:3;display:flex;flex-direction:column;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-radius:18px;padding:.8rem 1.1rem;box-shadow:var(--shadow-m);transform:translateZ(40px);animation:bob 6s ease-in-out infinite}
.chip b{font-size:1.6rem;line-height:1;font-weight:800;letter-spacing:-.03em;color:var(--blue)}
.chip span{font-size:.72rem;color:var(--muted);font-weight:600;margin-top:.25rem}
.chip-a{left:-8%;top:12%}
.chip-b{right:-6%;top:44%;animation-delay:-2s}
.chip-c{left:6%;bottom:-4%;flex-direction:row;align-items:center;gap:.6rem;padding:.7rem 1.1rem;animation-delay:-4s}
.chip-c span{margin:0;color:var(--ink);font-size:.8rem}
.pulse{width:9px;height:9px;border-radius:50%;background:#16c47f;box-shadow:0 0 0 0 rgba(22,196,127,.55);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 10px rgba(22,196,127,0)}100%{box-shadow:0 0 0 0 rgba(22,196,127,0)}}
@keyframes bob{50%{transform:translate3d(0,-10px,40px)}}
.scroll-hint{position:absolute;left:50%;bottom:26px;width:26px;height:42px;border:2px solid var(--ink);border-radius:20px;transform:translateX(-50%);opacity:.5}
.scroll-hint span{position:absolute;left:50%;top:8px;width:4px;height:8px;margin-left:-2px;border-radius:4px;background:var(--blue);animation:wheel 1.8s infinite}
@keyframes wheel{0%{opacity:0;transform:translateY(0)}30%{opacity:1}100%{opacity:0;transform:translateY(14px)}}

/* hero entry states (JS adds .in) */
[data-hero]{opacity:0;transform:translateY(24px);filter:blur(6px);transition:opacity 1s var(--ease),transform 1.1s var(--ease),filter 1s var(--ease)}
.hero.in [data-hero]{opacity:1;transform:none;filter:none}
.hero.in [data-hero]:nth-child(2){transition-delay:.35s}.hero.in [data-hero]:nth-child(3){transition-delay:.5s}.hero.in [data-hero]:nth-child(4){transition-delay:.65s}
.hero.in .hero-visual[data-hero]{transition-delay:.4s}
.hero-visual[data-hero]{transform:translateY(40px) scale(.94)}
.hero.in .hero-visual[data-hero]{transform:none}

/* word-mask text split */
.w{display:inline-block;overflow:hidden;vertical-align:top;padding:.1em .16em .26em;margin:-.1em -.16em -.26em}
.wi{display:inline-block;transform:translateY(112%) rotate(4deg);transform-origin:left bottom;transition:transform 1.1s var(--ease);transition-delay:calc(var(--d,0)*1ms)}
.split-in .wi,.in .wi{transform:none}

/* ---------- Marquee ---------- */
.marquee{overflow:hidden;border-block:1px solid var(--line);background:var(--blue-ss);padding:1.05rem 0}
.marquee-track{display:flex;width:max-content;will-change:transform}
.mq{display:flex;align-items:center;gap:1.6rem;padding-right:1.6rem;white-space:nowrap}
.mq span{font-weight:600;font-size:.88rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2)}
.mq i{font-style:normal;color:var(--blue)}

/* ---------- Sections ---------- */
.section{padding:clamp(80px,12vw,160px) 0;position:relative}
.kicker{display:inline-flex;align-items:center;gap:.7rem;font-size:.8rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--blue);margin-bottom:1.2rem}
.kicker::before{content:"";width:28px;height:2px;background:var(--blue)}
.h2{font-size:clamp(2rem,5vw,4rem);line-height:1.05;letter-spacing:-.035em;font-weight:800;max-width:18ch}
[data-reveal]{opacity:0;transform:translateY(34px);transition:opacity 1s var(--ease),transform 1.1s var(--ease)}
[data-reveal].in{opacity:1;transform:none}
[data-stagger]>*{opacity:0;transform:translateY(40px) scale(.97);transition:opacity .9s var(--ease),transform 1s var(--ease);transition-delay:calc(var(--i,0)*110ms)}
[data-stagger].in>*{opacity:1;transform:none}

.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,6vw,100px);align-items:start}
.about-copy p{color:var(--ink-2);font-size:1.05rem;margin-bottom:1.2rem}
.about-copy p:first-child::first-letter{font-family:var(--serif);font-size:3.4em;float:left;line-height:.8;padding:.08em .12em 0 0;color:var(--blue)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:24px;overflow:hidden;margin-top:clamp(50px,8vw,100px);padding:0}
.stat{background:#fff;padding:clamp(22px,3vw,40px)}
.stat b{display:block;font-size:clamp(2.4rem,5vw,4rem);font-weight:800;letter-spacing:-.04em;line-height:1;color:var(--ink);font-variant-numeric:tabular-nums}
.stat span{display:block;margin-top:.6rem;font-size:.9rem;color:var(--muted);font-weight:500}
.stats{max-width:calc(var(--max) - 2*var(--pad));margin-inline:auto}

/* ---------- Work: stacked cards ---------- */
.work-head{display:flex;justify-content:space-between;align-items:flex-end;gap:2rem;margin-bottom:clamp(40px,6vw,80px);flex-wrap:wrap}
.work-note{max-width:26rem;color:var(--muted)}
.stack{display:grid;gap:34px;position:relative}
.pcard{position:sticky;top:calc(92px + var(--i)*18px);display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,4vw,56px);align-items:stretch;
  background:#fff;border:1px solid var(--line);border-radius:32px;padding:clamp(20px,3.2vw,44px);box-shadow:var(--shadow-m);min-height:min(560px,calc(100svh - 170px));
  transform-origin:50% 0;will-change:transform;transition:box-shadow .4s}
.pcard-body{display:flex;flex-direction:column;position:relative;z-index:1}
.pcard-no{font-family:var(--serif);font-style:italic;font-size:clamp(3rem,6vw,5rem);line-height:1;color:var(--blue-s);-webkit-text-stroke:1.5px var(--blue-l);letter-spacing:-.02em}
.pcard-tag{margin-top:.8rem;font-size:.74rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue)}
.pcard h3{margin-top:.6rem;font-size:clamp(1.5rem,2.6vw,2.2rem);line-height:1.12;letter-spacing:-.03em;font-weight:800}
.pcard p.short{margin-top:.9rem;color:var(--ink-2);font-size:1rem}
.pcard .pills{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:1.1rem}
.pcard-foot{margin-top:auto;padding-top:1.6rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.hl b{display:block;font-size:clamp(1.5rem,2.4vw,2.1rem);font-weight:800;letter-spacing:-.03em;color:var(--blue);line-height:1}
.hl span{font-size:.8rem;color:var(--muted);font-weight:500}
.pcard-media{position:relative;border-radius:22px;overflow:hidden;background:linear-gradient(160deg,var(--blue-s),#dfe9ff);min-height:260px;isolation:isolate}
.pcard-media .win{position:absolute;left:8%;right:8%;top:12%;bottom:-6%;background:#fff;border-radius:14px 14px 0 0;box-shadow:0 30px 60px -20px rgba(16,40,120,.4);overflow:hidden;transform:rotate(-2deg);transition:transform .9s var(--ease)}
.pcard-media .win-bar{height:26px;background:#f2f5fb;display:flex;align-items:center;gap:6px;padding:0 12px;border-bottom:1px solid var(--line)}
.win-bar i{width:8px;height:8px;border-radius:50%;background:#cfd6e6}
.win-bar i:first-child{background:#ff6f6f}.win-bar i:nth-child(2){background:#ffc14a}.win-bar i:nth-child(3){background:#35cf8c}
.pcard-media img{width:100%;height:calc(100% - 26px);object-fit:cover;object-position:top;transition:transform 1.2s var(--ease)}
.pcard-media img.pos-center{object-position:center}
.pcard-media img.pos-contain{object-fit:contain;background:#fff;padding:18px;object-position:center}
.pcard:hover .win{transform:rotate(0) translateY(-10px) scale(1.02)}
.pcard:hover .pcard-media img{transform:scale(1.04)}
.pcard-media::after{content:"";position:absolute;inset:0;z-index:2;pointer-events:none;box-shadow:inset 0 0 0 1px rgba(29,92,255,.08);border-radius:22px}
.pcard:nth-child(even) .pcard-media{order:-1}
.pcard.dim{box-shadow:var(--shadow-s)}

/* ---------- Timeline ---------- */
.timeline{position:relative;margin-top:clamp(40px,6vw,80px);display:grid;gap:34px;padding-left:clamp(28px,6vw,90px)}
.tl-line{position:absolute;left:9px;top:8px;bottom:8px;width:2px;background:var(--line)}
.tl-line span{position:absolute;inset:0;background:var(--blue);transform:scaleY(0);transform-origin:top}
.tl-item{position:relative;display:grid;grid-template-columns:200px 1fr;gap:clamp(16px,3vw,40px);align-items:start}
.tl-dot{position:absolute;left:calc(-1*clamp(28px,6vw,90px) + 1px);top:8px;width:18px;height:18px;border-radius:50%;background:#fff;border:3px solid var(--blue);box-shadow:0 0 0 6px var(--blue-s)}
.tl-date{font-weight:700;color:var(--blue);padding-top:4px;font-size:.95rem}
.tl-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:clamp(22px,3vw,36px);box-shadow:var(--shadow-s);transition:transform .5s var(--ease),box-shadow .5s}
.tl-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-m)}
.tl-card h3{font-size:clamp(1.2rem,2vw,1.6rem);line-height:1.2;letter-spacing:-.02em;font-weight:800}
.tl-org{color:var(--blue);font-weight:600;margin:.3rem 0 .8rem}
.tl-card p{color:var(--ink-2)}
.pills{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:1rem}
.gpa{display:inline-flex;align-items:center;gap:.8rem;margin:.2rem 0 1rem;background:var(--blue-s);border-radius:16px;padding:.7rem 1.1rem}
.gpa b{font-size:2.2rem;font-weight:800;letter-spacing:-.04em;color:var(--blue);line-height:1}
.gpa span{font-size:.78rem;font-weight:600;color:var(--ink-2);line-height:1.3}

/* ---------- Certificates ---------- */
.certs{background:linear-gradient(180deg,#fff,var(--blue-ss))}
.cert{margin-top:clamp(30px,5vw,60px);display:flex;align-items:center;gap:clamp(20px,4vw,50px);background:#fff;border:1px solid var(--line);border-radius:28px;padding:clamp(22px,4vw,44px);box-shadow:var(--shadow-m);max-width:880px}
.cert-ring{position:relative;flex:none;width:clamp(96px,14vw,128px);aspect-ratio:1}
.cert-ring svg{width:100%;height:100%;transform:rotate(-90deg)}
.ring-bg,.ring-fg{fill:none;stroke-width:8}
.ring-bg{stroke:var(--blue-s)}
.ring-fg{stroke:var(--blue);stroke-linecap:round;stroke-dasharray:327;stroke-dashoffset:327}
.cert-ring span{position:absolute;inset:0;display:grid;place-items:center;text-align:center;font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);line-height:1.2}
.cert-tag{font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.cert h3{font-size:clamp(1.3rem,2.4vw,1.9rem);line-height:1.15;letter-spacing:-.03em;margin:.4rem 0 .6rem;font-weight:800}
.cert-org{color:var(--ink-2);font-weight:500}
.badge{display:inline-block;margin-left:.5rem;font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--blue);background:var(--blue-s);padding:.2rem .6rem;border-radius:999px}

/* ---------- Contact ---------- */
.contact{padding-top:clamp(40px,6vw,80px)}
.contact-card{position:relative;overflow:hidden;border-radius:40px;padding:clamp(30px,7vw,100px);background:linear-gradient(160deg,#f4f7ff,#e6eeff);border:1px solid #dbe5ff}
.cc-glow{position:absolute;right:-10%;top:-30%;width:60%;aspect-ratio:1;background:radial-gradient(circle,rgba(29,92,255,.28),transparent 65%);filter:blur(30px);animation:float 12s ease-in-out infinite}
.mega{position:relative;font-family:var(--serif);font-style:italic;font-weight:400;font-size:clamp(3.4rem,13vw,10.5rem);line-height:.95;letter-spacing:-.04em;color:var(--ink);max-width:none}
.cc-text{position:relative;max-width:42rem;margin:1.6rem 0 2.2rem;color:var(--ink-2);font-size:1.05rem}
.cc-actions{position:relative;display:flex;flex-wrap:wrap;gap:.9rem}
.footer{padding:28px 0 40px;color:var(--muted);font-size:.9rem}
.foot{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.foot a:hover{color:var(--blue)}

/* ---------- Case-study overlay ---------- */
#csBlue,.cs{position:fixed;inset:0;clip-path:circle(0 at 50% 50%);visibility:hidden}
#csBlue{z-index:950;background:linear-gradient(135deg,var(--blue),var(--blue-d))}
.cs{z-index:960;background:#fff;display:flex;flex-direction:column}
#csBlue.on,.cs.on{visibility:visible}
.cs-bar{flex:none;display:flex;align-items:center;gap:1.2rem;padding:14px var(--pad);border-bottom:1px solid var(--line);background:rgba(255,255,255,.9);backdrop-filter:blur(12px);z-index:2}
.cs-count{font-weight:700;font-size:.85rem;color:var(--muted);font-variant-numeric:tabular-nums;letter-spacing:.08em}
.cs-bar-progress{flex:1;height:3px;background:var(--line);border-radius:3px;overflow:hidden}
.cs-bar-progress span{display:block;height:100%;background:var(--blue);transform:scaleX(0);transform-origin:left}
.cs-close{width:46px;height:46px;border-radius:50%;background:var(--blue);display:grid;place-items:center;box-shadow:var(--glow);transition:transform .5s var(--ease)}
.cs-close:hover{transform:rotate(90deg) scale(1.06)}
.cs-close svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:2.2;stroke-linecap:round}
.cs-scroll{flex:1;overflow-y:auto;overscroll-behavior:contain;scroll-behavior:smooth}
.cs-inner{max-width:1040px;margin:0 auto;padding:clamp(36px,6vw,90px) var(--pad) 80px}

.cs-hero .tag{display:inline-block;font-size:.76rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);background:var(--blue-s);padding:.45rem .9rem;border-radius:999px}
.cs-hero h1{margin:1.2rem 0 0;font-size:clamp(2.2rem,6vw,4.6rem);line-height:1.02;letter-spacing:-.04em;font-weight:800}
.cs-meta{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:20px;overflow:hidden;margin:clamp(26px,4vw,48px) 0}
.cs-meta div{background:#fff;padding:1.1rem 1.2rem}
.cs-meta dt{font-size:.7rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.cs-meta dd{margin-top:.3rem;font-weight:600;font-size:.95rem;line-height:1.35}
.cs-problem{font-size:clamp(1.1rem,2vw,1.4rem);line-height:1.55;color:var(--ink-2);border-left:3px solid var(--blue);padding-left:1.3rem}
.cs-problem b{display:block;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--blue);margin-bottom:.6rem}

.cs-sec{margin-top:clamp(48px,7vw,96px)}
.cs-sec>h2{font-size:clamp(1.5rem,3vw,2.2rem);letter-spacing:-.03em;font-weight:800;margin-bottom:1.4rem}
.cs-sec>.intro{color:var(--ink-2);max-width:46rem;margin:-.6rem 0 1.6rem}
.cs-note{margin-top:1rem;font-size:.85rem;color:var(--muted);font-style:italic}
.cs-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.cs-stat{background:var(--blue-ss);border:1px solid #e0e8ff;border-radius:22px;padding:1.5rem}
.cs-stat b{display:block;font-size:clamp(2rem,4vw,3rem);font-weight:800;letter-spacing:-.04em;color:var(--blue);line-height:1}
.cs-stat strong{display:block;margin-top:.6rem;font-size:1rem;font-weight:700;line-height:1.25}
.cs-stat span{display:block;margin-top:.4rem;font-size:.85rem;color:var(--muted)}
.cs-steps{display:grid;gap:14px;counter-reset:s}
.cs-step{position:relative;display:grid;grid-template-columns:56px 1fr;gap:1rem;background:#fff;border:1px solid var(--line);border-radius:20px;padding:1.2rem 1.4rem;counter-increment:s;box-shadow:var(--shadow-s)}
.cs-step::before{content:counter(s,decimal-leading-zero);display:grid;place-items:center;width:48px;height:48px;border-radius:14px;background:var(--blue);color:#fff;font-weight:800;box-shadow:var(--glow)}
.cs-step h3{font-size:1.1rem;font-weight:800;letter-spacing:-.02em}
.cs-step p{color:var(--ink-2);margin-top:.2rem}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-s)}
table.tbl{width:100%;border-collapse:collapse;min-width:620px;font-size:.92rem}
.tbl th{background:var(--blue);color:#fff;text-align:left;padding:.9rem 1.1rem;font-weight:700;font-size:.8rem;letter-spacing:.06em;text-transform:uppercase}
.tbl td{padding:.9rem 1.1rem;border-top:1px solid var(--line);vertical-align:top;color:var(--ink-2)}
.tbl tr:nth-child(even) td{background:var(--blue-ss)}
.tbl td:first-child{font-weight:700;color:var(--ink);white-space:nowrap}
.tbl td.to{color:var(--ink);font-weight:600}
.cs-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.cs-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:1.5rem;box-shadow:var(--shadow-s);transition:transform .5s var(--ease),box-shadow .5s,border-color .3s}
.cs-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-m);border-color:#cfdcff}
.cs-card h3{font-size:1.08rem;font-weight:800;letter-spacing:-.02em;line-height:1.25}
.cs-card p{margin-top:.5rem;color:var(--ink-2);font-size:.95rem}
.cs-feat{display:grid;gap:16px}
.cs-f{display:grid;grid-template-columns:48px 1fr;gap:1.1rem;background:#fff;border:1px solid var(--line);border-radius:22px;padding:1.4rem;box-shadow:var(--shadow-s)}
.cs-f i{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--blue-s);color:var(--blue);font-style:normal;font-weight:800}
.cs-f h3{font-size:1.1rem;font-weight:800;letter-spacing:-.02em}
.cs-f p{color:var(--ink-2);margin-top:.25rem}
.cs-f .out{margin-top:.8rem;font-size:.88rem;background:var(--blue-ss);border-left:3px solid var(--blue);border-radius:0 12px 12px 0;padding:.6rem .9rem;color:var(--ink)}
.cs-f .out b{color:var(--blue)}
.cs-okr{display:grid;gap:22px}
.okr-o{border:1px solid var(--line);border-radius:26px;overflow:hidden;box-shadow:var(--shadow-s)}
.okr-o>h3{background:linear-gradient(135deg,var(--blue),var(--blue-d));color:#fff;padding:1.2rem 1.5rem;font-size:1.2rem;font-weight:800;letter-spacing:-.02em}
.okr-o>h3 small{display:block;font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;opacity:.75;margin-bottom:.2rem}
.okr-kr{display:grid;grid-template-columns:1.1fr .8fr 1.6fr;gap:1.2rem;padding:1.1rem 1.5rem;border-top:1px solid var(--line);align-items:start}
.okr-kr:first-of-type{border-top:0}
.okr-kr b{font-weight:700}
.okr-kr .t{font-weight:800;color:var(--blue);font-size:1.05rem;letter-spacing:-.02em}
.okr-kr p{color:var(--ink-2);font-size:.92rem}
.cs-callout{background:linear-gradient(135deg,var(--blue-ss),var(--blue-s));border:1px solid #dbe6ff;border-radius:26px;padding:clamp(22px,4vw,40px)}
.cs-callout b{display:block;font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--blue);margin-bottom:.6rem}
.cs-callout p{font-family:var(--serif);font-style:italic;font-size:clamp(1.3rem,2.6vw,2rem);line-height:1.3;color:var(--ink)}
.cs-split{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.cs-col{background:#fff;border:1px solid var(--line);border-radius:26px;padding:clamp(20px,3vw,32px);box-shadow:var(--shadow-s)}
.cs-col .k{font-size:.72rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--blue)}
.cs-col h3{font-size:1.4rem;font-weight:800;letter-spacing:-.03em;margin:.3rem 0 .7rem}
.cs-col>p{color:var(--ink-2);font-size:.95rem}
.mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:1.2rem 0}
.mini-stats div{background:var(--blue-ss);border-radius:16px;padding:.8rem}
.mini-stats b{display:block;font-size:1.4rem;font-weight:800;color:var(--blue);letter-spacing:-.03em;line-height:1.1}
.mini-stats span{font-size:.72rem;color:var(--muted);font-weight:600;line-height:1.25;display:block;margin-top:.2rem}
.cs-col ul{display:grid;gap:.6rem}
.cs-col li{position:relative;padding-left:1.4rem;color:var(--ink-2);font-size:.92rem}
.cs-col li::before{content:"";position:absolute;left:0;top:.55em;width:8px;height:8px;border-radius:50%;background:var(--blue)}
.cs-gal{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:18px;align-items:start}
.cs-gal figure{margin:0;cursor:zoom-in}
.cs-gal figure.wide{grid-column:1/-1}
.cs-gal .shot{border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-s);transition:transform .6s var(--ease),box-shadow .6s}
.cs-gal figure:hover .shot{transform:translateY(-6px);box-shadow:var(--shadow-m)}
.cs-gal img{width:100%;height:auto}
.cs-gal figcaption{margin-top:.6rem;font-size:.82rem;font-weight:600;color:var(--muted)}
.cs-docs{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:clamp(40px,6vw,70px)}
.cs-next{margin-top:clamp(30px,5vw,56px)}
.cs-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:clamp(50px,8vw,100px)}
.cs-nav button{text-align:left;border:1px solid var(--line);border-radius:22px;padding:1.3rem 1.5rem;background:#fff;transition:all .5s var(--ease);box-shadow:var(--shadow-s)}
.cs-nav button:hover{border-color:var(--blue);transform:translateY(-4px);box-shadow:var(--shadow-m)}
.cs-nav small{display:block;font-size:.7rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--blue)}
.cs-nav span{display:block;margin-top:.3rem;font-weight:800;letter-spacing:-.02em;line-height:1.25}
.cs-nav button:last-child{text-align:right}
.cs-nav button[disabled]{opacity:.35;pointer-events:none}
/* overlay content entrance */
.cs.on .cs-rise{opacity:0;transform:translateY(30px);animation:rise .9s var(--ease) forwards;animation-delay:calc(var(--d,0)*1ms + 450ms)}
@keyframes rise{to{opacity:1;transform:none}}
.cs-sec.cs-r{opacity:0;transform:translateY(40px);transition:opacity .9s var(--ease),transform 1s var(--ease)}
.cs-sec.cs-r.in{opacity:1;transform:none}

/* ---------- Lightbox / toast ---------- */
.lightbox{position:fixed;inset:0;z-index:1100;background:rgba(8,14,32,.86);backdrop-filter:blur(8px);display:grid;place-items:center;padding:4vw;opacity:0;visibility:hidden;transition:opacity .4s,visibility 0s .4s}
.lightbox.open{opacity:1;visibility:visible;transition:opacity .4s}
.lightbox img{max-width:100%;max-height:88vh;border-radius:14px;background:#fff;box-shadow:0 40px 100px rgba(0,0,0,.5);transform:scale(.92);transition:transform .6s var(--ease)}
.lightbox.open img{transform:none}
.lightbox button{position:absolute;right:20px;top:20px;width:46px;height:46px;border-radius:50%;background:#fff;color:var(--ink);font-size:1.1rem;font-weight:700}
.toast{position:fixed;left:50%;bottom:28px;z-index:1300;background:var(--ink);color:#fff;font-size:.9rem;font-weight:600;padding:.8rem 1.3rem;border-radius:999px;box-shadow:var(--shadow-m);transform:translate(-50%,30px);opacity:0;pointer-events:none;transition:all .5s var(--ease);max-width:90vw;text-align:center}
.toast.show{transform:translate(-50%,0);opacity:1}

/* ---------- Responsive ---------- */
@media (max-width:1000px){
  .hero-grid{grid-template-columns:1fr}
  .hero-visual{order:-1;margin-bottom:10px}
  .portrait{width:min(78%,340px)}
  .chip-a{left:-4%}.chip-b{right:-4%}
  .hero{padding-top:110px}
  .about-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .pcard{grid-template-columns:1fr;top:calc(78px + var(--i)*12px)}
  .pcard:nth-child(even) .pcard-media,.pcard-media{order:-1}
  .pcard-media{min-height:230px}
  .cs-meta{grid-template-columns:1fr 1fr}
  .cs-split{grid-template-columns:1fr}
  .okr-kr{grid-template-columns:1fr;gap:.3rem}
}
@media (max-width:820px){
  .nav,.nav-cta{display:none}
  .burger{display:block;margin-left:auto}
  .tl-item{grid-template-columns:1fr;gap:10px}
  .cert{flex-direction:column;align-items:flex-start}
  .cs-nav{grid-template-columns:1fr}
  .cs-nav button:last-child{text-align:left}
  .mini-stats{grid-template-columns:1fr 1fr 1fr}
}
@media (max-width:520px){
  .stats{grid-template-columns:1fr 1fr}
  .stat{padding:20px 16px}
  .cs-meta{grid-template-columns:1fr}
  .pcard{padding:16px;border-radius:26px}
  .btn{padding:.85rem 1.3rem}
  .contact-card{border-radius:28px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;transition-delay:0ms!important}
  [data-hero],[data-reveal],[data-stagger]>*,.wi,.cs-sec.cs-r{opacity:1!important;transform:none!important;filter:none!important}
  .orb{display:none}
}