/* ═══════════════════════════════════════════════════════════
   Yadav Sitaram — personal site
   Portfolio Grid pattern · Motion-Driven style
   Archivo + Space Grotesk · monochrome with a single blue accent
   ═══════════════════════════════════════════════════════════ */

:root{
  --bg:#FAFAFA;
  --surface:#FFFFFF;
  --surface-2:#F4F5F7;
  --tint:#F2F4F8;

  --ink:#0B0D12;
  --ink-2:#3F3F46;
  --muted:#63636D;
  --faint:#8E8E98;

  --line:#E4E4E7;
  --line-2:#D6D6DB;
  --line-art:#C4C9D4;

  --accent:#1D4ED8;
  --accent-ink:#1B44BC;
  --accent-soft:#EAF0FF;

  --dark:#0B0D12;
  --dark-2:#14161D;

  --h:'Archivo',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --b:'Space Grotesk',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;

  --pad:clamp(1.15rem,4.5vw,4rem);
  --maxw:1240px;
  --r:14px;
  --r-sm:10px;
  --ease:cubic-bezier(.22,.72,.28,1);
  --sh-1:0 1px 2px rgba(11,13,18,.05);
  --sh-2:0 10px 30px -18px rgba(11,13,18,.28);
  --sh-3:0 24px 60px -30px rgba(11,13,18,.32);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}

body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--b);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body.locked{overflow:hidden}

h1,h2,h3{margin:0;font-family:var(--h);font-weight:600;letter-spacing:-.02em;line-height:1.08}
p,ul,ol,dl,dd,figure,blockquote{margin:0}
ul,ol{list-style:none;padding:0}
a{color:inherit;text-decoration:none;-webkit-tap-highlight-color:transparent}
button,a,.chip,.btn{touch-action:manipulation}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img{max-width:100%;display:block}

::selection{background:var(--accent);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

.skip{position:absolute;left:-9999px;top:0;z-index:99;background:var(--accent);color:#fff;padding:.75rem 1.15rem;border-radius:0 0 8px 0;font-size:.85rem}
.skip:focus{left:0}

.ico{width:18px;height:18px;flex:none}
.ico--xs{width:15px;height:15px}

/* ── type scale ─────────────────────────────────────────── */
.h-xl{font-size:clamp(2.4rem,6vw,4.4rem);font-weight:700;letter-spacing:-.035em}
.h-lg{font-size:clamp(1.7rem,3.4vw,2.6rem);font-weight:600;letter-spacing:-.028em}
.h-sm{font-size:clamp(1.05rem,1.6vw,1.2rem);font-weight:600;letter-spacing:-.015em}

.kicker{
  display:flex;align-items:center;gap:.55rem;
  font-size:.74rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);margin-bottom:.85rem;
}
.kicker__dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none}
.kicker--light{color:rgba(255,255,255,.62)}

.hl{color:var(--accent);font-weight:500}

/* ── buttons ────────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  min-height:44px;padding:.7rem 1.25rem;border-radius:999px;
  font-family:var(--b);font-size:.92rem;font-weight:500;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn--primary{background:var(--ink);color:#fff}
.btn--primary:hover{background:var(--accent);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn--quiet{background:var(--surface);color:var(--ink);border-color:var(--line-2)}
.btn--quiet:hover{border-color:var(--ink);transform:translateY(-2px)}
.btn--sm{min-height:38px;padding:.5rem 1rem;font-size:.85rem}
.btn__i{display:inline-flex}
.btn__i svg{width:16px;height:16px}

/* ═══ NAV ════════════════════════════════════════════════ */

.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:background .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);border-bottom:1px solid transparent}
.nav.is-stuck{background:rgba(250,250,250,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.nav__in{max-width:var(--maxw);margin:0 auto;padding:.85rem var(--pad);display:flex;align-items:center;justify-content:space-between;gap:1rem}
.nav__brand{display:flex;align-items:center;gap:.6rem}
.nav__mark{
  width:32px;height:32px;border-radius:9px;background:var(--ink);color:#fff;
  display:grid;place-items:center;font-family:var(--h);font-weight:700;font-size:.75rem;letter-spacing:.02em;flex:none;
}
.nav__name{font-family:var(--h);font-weight:600;font-size:.95rem;letter-spacing:-.01em}
.nav__links{display:flex;align-items:center;gap:.35rem}
.nav__links a{padding:.55rem .85rem;border-radius:999px;font-size:.9rem;color:var(--muted);transition:color .2s,background .2s}
.nav__links a:hover{color:var(--ink);background:var(--surface-2)}
.nav__cta{background:var(--ink);color:#fff !important;padding:.55rem 1.1rem !important}
.nav__cta:hover{background:var(--accent) !important}

/* ═══ HERO ═══════════════════════════════════════════════ */

.hero{position:relative;padding:clamp(6.5rem,14vh,9rem) 0 clamp(2.5rem,6vw,4rem);overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(46% 46% at 78% 18%,rgba(29,78,216,.09),transparent 70%);
}
.hero__in{
  position:relative;max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad);
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:clamp(1.5rem,5vw,4rem);align-items:center;
}

.tag{
  display:inline-flex;align-items:center;gap:.45rem;
  padding:.4rem .85rem .4rem .6rem;border:1px solid var(--line);background:var(--surface);
  border-radius:999px;font-size:.82rem;color:var(--muted);margin-bottom:1.4rem;box-shadow:var(--sh-1);
}
.tag__i{display:inline-flex;color:var(--accent)}
.tag__i svg{width:16px;height:16px}

.hero__role{font-size:clamp(1.05rem,1.6vw,1.3rem);color:var(--ink-2);margin:1rem 0 1.1rem;font-weight:400}
.hero__lede{max-width:56ch;color:var(--muted);font-size:clamp(1rem,1.1vw,1.08rem)}
.hero__cta{display:flex;flex-wrap:wrap;gap:.65rem;margin-top:1.8rem}

.avatar{
  position:relative;width:clamp(168px,22vw,300px);aspect-ratio:1;
  border-radius:24px;overflow:hidden;background:var(--surface-2);
  box-shadow:var(--sh-3),0 0 0 1px var(--line);
}
.avatar img{width:100%;height:100%;object-fit:cover}
.avatar::after{content:"";position:absolute;inset:0;border-radius:24px;box-shadow:inset 0 0 0 1px rgba(11,13,18,.06)}

/* ═══ SECTIONS ═══════════════════════════════════════════ */

.sec{padding:clamp(3rem,7vw,5.5rem) 0}
.sec--tint{background:var(--tint);border-block:1px solid var(--line)}
.sec__in{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}
.sec__head{margin-bottom:clamp(1.6rem,3vw,2.4rem)}
.sec__head--row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:1rem}
.sec__count{font-size:.85rem;color:var(--muted)}

/* ── filter chips ── */

.chips{display:flex;flex-wrap:wrap;gap:.45rem;margin-bottom:clamp(1.2rem,2.2vw,1.7rem)}
.chip{
  min-height:40px;padding:.5rem 1.05rem;border-radius:999px;font-size:.88rem;
  border:1px solid var(--line-2);background:var(--surface);color:var(--muted);
  transition:color .2s,background .2s,border-color .2s,transform .2s;
}
.chip:hover{color:var(--ink);border-color:var(--ink);transform:translateY(-1px)}
.chip.is-on{background:var(--ink);border-color:var(--ink);color:#fff}

/* ── project cards ── */

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:clamp(.85rem,1.4vw,1.2rem)}

.card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  box-shadow:var(--sh-1);cursor:pointer;
  transition:transform .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--line-2)}
.card--soon{cursor:default}
.card--soon:hover{transform:none;box-shadow:var(--sh-1);border-color:var(--line)}

.cover{position:relative;aspect-ratio:16/10;background:linear-gradient(160deg,var(--surface-2),var(--tint));border-bottom:1px solid var(--line);overflow:hidden}
.cover__art{position:absolute;inset:0;width:100%;height:100%}
.cover__cat,.cover__yr{
  position:absolute;bottom:.7rem;font-size:.7rem;letter-spacing:.06em;
  padding:.3rem .6rem;border-radius:999px;background:rgba(255,255,255,.88);
  border:1px solid var(--line);color:var(--muted);backdrop-filter:blur(4px);
}
.cover__cat{left:.7rem}
.cover__yr{right:.7rem;font-variant-numeric:tabular-nums}

.card__b{padding:1.2rem 1.2rem 1.25rem;display:flex;flex-direction:column;flex:1}
.card__t{font-size:1.16rem;margin-bottom:.4rem}
.card__d{color:var(--muted);font-size:.93rem;line-height:1.55}
.card__st{display:flex;align-items:center;gap:.4rem;font-size:.78rem;color:var(--faint);margin-top:.85rem}
.card__a{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.1rem;padding-top:0}
.card:not(.card--soon) .card__a{margin-top:auto;padding-top:1.1rem}

/* language bar — true scale, real byte counts */
.bar{display:flex;height:4px;width:100%;border-radius:99px;overflow:hidden;background:var(--line);margin-top:.9rem}
.bar__s{display:block;height:100%}
.bar__s--1{background:var(--accent)}
.bar__s--2{background:#7C93E8}
.bar__s--3{background:#B9C4EC}
.bar__s--4{background:var(--line-2)}

/* ═══ CONTACT ════════════════════════════════════════════ */

.foot{background:var(--dark);color:#fff;padding:clamp(3.4rem,7vw,5.5rem) 0 clamp(1.8rem,3vw,2.4rem)}
.foot__h{margin-bottom:.9rem}
.foot__lede{color:rgba(255,255,255,.62);max-width:52ch;margin-bottom:clamp(1.8rem,3.5vw,2.6rem)}
.links{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:.7rem}
.links a{
  display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;
  column-gap:.85rem;row-gap:.15rem;align-items:center;
  padding:1.05rem 1.15rem;border-radius:var(--r-sm);
  background:var(--dark-2);border:1px solid rgba(255,255,255,.08);
  transition:background .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
}
.links a:hover{background:#1B1E27;border-color:rgba(255,255,255,.2);transform:translateY(-2px)}
.links__i{grid-row:1/3;display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.07);color:#fff}
.links__k{font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.5)}
.links__v{font-family:var(--h);font-weight:500;font-size:.98rem;letter-spacing:-.01em;word-break:break-word}
.foot__end{margin-top:clamp(2.2rem,4vw,3rem);font-size:.82rem;color:rgba(255,255,255,.42)}

/* ═══ DETAIL SHEET ═══════════════════════════════════════ */

.sheet{position:fixed;inset:0;z-index:70}
.sheet__scrim{position:absolute;inset:0;background:rgba(11,13,18,.5);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);opacity:0;transition:opacity .3s var(--ease)}
.sheet.is-open .sheet__scrim{opacity:1}
.sheet__panel{
  position:absolute;top:0;right:0;bottom:0;width:min(660px,100%);
  background:var(--bg);overflow-y:auto;outline:none;
  transform:translateX(100%);transition:transform .38s var(--ease);
  box-shadow:-30px 0 70px -40px rgba(11,13,18,.5);
}
.sheet.is-open .sheet__panel{transform:none}
.sheet__x{
  position:absolute;top:1rem;right:1rem;z-index:3;
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.9);border:1px solid var(--line);color:var(--ink);
  backdrop-filter:blur(6px);transition:background .2s,transform .2s;
}
.sheet__x:hover{background:#fff;transform:rotate(90deg)}
.sheet__x svg{width:18px;height:18px}
.sheet__cover{aspect-ratio:16/8;border-bottom:1px solid var(--line);border-radius:0}
.sheet__in{padding:clamp(1.4rem,3.5vw,2.4rem)}
.sheet__cat{display:flex;gap:.5rem;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin-bottom:.7rem}
.sheet__lede{font-size:1.06rem;color:var(--ink-2);margin:.7rem 0 1.5rem;max-width:52ch}

.meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:1rem;padding:1.05rem 0;border-block:1px solid var(--line);margin-bottom:1.6rem}
.meta dt{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin-bottom:.25rem}
.meta dd{font-size:.95rem;font-weight:500;font-variant-numeric:tabular-nums}

.blk{margin-bottom:1.7rem}
.blk__h{font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);font-family:var(--b);font-weight:500;margin-bottom:.7rem}
.blk .bar{height:8px;margin-top:0}
.legend{display:flex;flex-wrap:wrap;gap:.4rem 1.1rem;margin-top:.7rem}
.legend li{display:flex;align-items:center;gap:.4rem;font-size:.8rem;color:var(--muted)}
.legend b{font-weight:500;color:var(--ink);font-variant-numeric:tabular-nums}
.legend__s{width:9px;height:9px;border-radius:3px}
.legend__s--1{background:var(--accent)}
.legend__s--2{background:#7C93E8}
.legend__s--3{background:#B9C4EC}
.legend__s--4{background:var(--line-2)}

.prose p{color:var(--ink-2);margin-bottom:.95rem;max-width:58ch}
.prose p:last-child{margin-bottom:0}

.tags{display:flex;flex-wrap:wrap;gap:.4rem}
.tags li{font-size:.82rem;padding:.4rem .8rem;border-radius:999px;background:var(--surface);border:1px solid var(--line);color:var(--muted)}

.callout{display:flex;align-items:center;gap:.55rem;font-size:.86rem;color:var(--accent-ink);background:var(--accent-soft);border:1px solid #D5E1FF;padding:.75rem .95rem;border-radius:var(--r-sm);margin-bottom:1.4rem}

.sheet__a{display:flex;flex-wrap:wrap;gap:.6rem}

.lows{display:grid;gap:.7rem}
.lows li{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);padding:.95rem 1.05rem}
.lows__t{font-family:var(--h);font-weight:600;font-size:.98rem}
.lows__l{font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin:.15rem 0 .3rem}
.lows__d{font-size:.88rem;color:var(--muted)}


/* ── hero extras ────────────────────────────────────────── */

.hero__bg{position:absolute;inset:0;pointer-events:none;opacity:.42}
.hero__bg svg{width:100%;height:100%}
.hero__bg line{stroke:var(--line-2);stroke-width:.18;vector-effect:non-scaling-stroke}
.hero__bg circle{fill:var(--accent);opacity:.35}
.hero__bg .hb{animation:tw 5s var(--ease) infinite;animation-delay:calc(var(--i) * 380ms)}
@keyframes tw{0%,100%{opacity:.15;r:.5}50%{opacity:.55;r:.9}}

.hero__rot{display:inline-block;transition:opacity .3s var(--ease),transform .3s var(--ease)}
.hero__rot.is-out{opacity:0;transform:translateY(-6px)}

.beats{display:flex;flex-wrap:wrap;align-items:center;gap:.4rem;margin-top:1.5rem}
.beats a{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.42rem .8rem;border-radius:999px;font-size:.82rem;color:var(--muted);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:color .2s,border-color .2s,transform .2s;
}
.beats a:hover{color:var(--ink);border-color:var(--line-2);transform:translateY(-1px)}
.beats a span{font-size:1rem;line-height:1}
.beats__sep{color:var(--line-2);font-size:.9rem;padding:0 .1rem}

.avatar__ring{
  position:absolute;inset:-10px;border-radius:32px;z-index:-1;
  background:conic-gradient(from 200deg,var(--accent),transparent 38%,transparent 62%,var(--accent));
  opacity:.16;filter:blur(10px);
}

/* ── chapters ───────────────────────────────────────────── */

.chapters{display:grid;gap:clamp(.8rem,1.4vw,1.1rem);counter-reset:ch}
.ch{
  display:grid;grid-template-columns:auto minmax(0,1fr);gap:clamp(1rem,2.2vw,1.9rem);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:clamp(1.2rem,2.2vw,1.8rem);box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.ch:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-2)}
.ch__side{display:flex;flex-direction:column;align-items:center;gap:.55rem}
.ch__e{
  display:grid;place-items:center;width:54px;height:54px;border-radius:16px;
  background:var(--accent-soft);font-size:1.6rem;line-height:1;flex:none;
}
.ch__n{font-size:.72rem;letter-spacing:.14em;color:var(--faint);font-variant-numeric:tabular-nums}
.ch__w{display:flex;align-items:center;gap:.4rem;font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);font-weight:500;margin-bottom:.5rem}
.ch__t{font-size:clamp(1.12rem,2vw,1.45rem);margin-bottom:.6rem}
.ch__d{color:var(--muted);max-width:74ch}
.ch__tags{display:flex;flex-wrap:wrap;gap:.35rem;margin-top:1rem}
.ch__tags li{font-size:.78rem;padding:.32rem .7rem;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);color:var(--muted)}

/* ── status strip ───────────────────────────────────────── */

.sec--slim{padding:clamp(1.6rem,3.2vw,2.4rem) 0}
.status{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:clamp(.6rem,1.1vw,.9rem)}
.st{
  display:grid;grid-template-columns:auto minmax(0,1fr);grid-template-rows:auto auto auto;
  column-gap:.85rem;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:.95rem 1.05rem;box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.st:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.st__i,.st__logo{grid-row:1/4;display:grid;place-items:center;width:44px;height:44px;border-radius:12px}
.st__i{background:var(--accent-soft);color:var(--accent)}
.st__logo{background:var(--surface-2);border:1px solid var(--line);padding:5px}
.st__logo img{width:100%;height:100%;object-fit:contain}
.st__k{font-size:.68rem;letter-spacing:.13em;text-transform:uppercase;color:var(--faint)}
.st__v{font-family:var(--h);font-weight:600;font-size:.98rem;letter-spacing:-.012em;line-height:1.25}
.st__s{font-size:.82rem;color:var(--muted)}

/* ── card header line ───────────────────────────────────── */

.card__k{display:flex;align-items:center;gap:.42rem;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin-bottom:.55rem}
.card__e{font-size:1rem;line-height:1;letter-spacing:0}
.sheet__e{font-size:1.05rem;line-height:1;margin-right:.15rem}

/* ── history with logos ─────────────────────────────────── */

.about{max-width:960px}
.hist{border-top:1px solid var(--line)}
.hist__r{display:grid;grid-template-columns:7.5rem minmax(0,1fr);gap:1rem 1.6rem;padding:1.2rem 0;border-bottom:1px solid var(--line)}
.hist__w{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);padding-top:.2rem}
.hist__c{display:flex;gap:1rem;align-items:flex-start}
.hist__logo{
  display:grid;place-items:center;width:48px;height:48px;flex:none;padding:6px;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
}
.hist__logo img{width:100%;height:100%;object-fit:contain}
.hist__t{font-family:var(--h);font-weight:600;font-size:1.04rem;letter-spacing:-.015em}
.hist__t span{display:block;font-family:var(--b);font-weight:400;font-size:.85rem;color:var(--accent);margin-top:.15rem}
.hist__n{color:var(--muted);font-size:.92rem;margin-top:.35rem;max-width:70ch}

@media (max-width:560px){
  .ch{grid-template-columns:1fr;gap:.9rem}
  .ch__side{flex-direction:row;justify-content:flex-start;align-items:center;gap:.7rem}
  .hist__r{grid-template-columns:1fr;gap:.5rem}
  .hist__w{padding-top:0}
  .status{grid-template-columns:1fr}
  .beats{gap:.3rem}
  .beats__sep{display:none}
}

/* ═══ MOTION ═════════════════════════════════════════════ */

.reveal{opacity:0;transform:translateY(16px)}
.reveal.in{opacity:1;transform:none;transition:opacity .68s var(--ease),transform .68s var(--ease)}
.hero .reveal[data-d="0"].in{transition-delay:.04s}
.hero .reveal[data-d="1"].in{transition-delay:.12s}
.hero .reveal[data-d="2"].in{transition-delay:.22s}
.hero .reveal[data-d="3"].in{transition-delay:.32s}
.hero .reveal[data-d="4"].in{transition-delay:.42s}

/* cover micro-animation on card hover */
.cover .n,.cover .b,.cover .w{transition:transform .45s var(--ease),opacity .45s var(--ease);transition-delay:calc(var(--i,0) * 45ms)}
.card:hover .cover .n{transform:scale(1.09)}
.card:hover .cover .b{transform:translateX(6px)}
.card:hover .cover .w{transform:scaleY(1.28)}
.cover .n,.cover .b{transform-box:fill-box;transform-origin:center}
.cover .w{transform-box:fill-box;transform-origin:center}
.cover .draw{stroke-dasharray:420;stroke-dashoffset:0;transition:stroke-dashoffset .8s var(--ease)}
.card:hover .cover .draw{stroke-dashoffset:420}
.cover .pulse{transition:transform .5s var(--ease);transform-box:fill-box;transform-origin:center}
.card:hover .cover .pulse{transform:scale(1.12)}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .sheet__panel{transition:none}
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* ═══ RESPONSIVE ═════════════════════════════════════════ */

@media (max-width:820px){
  .nav__name{display:none}
  .hero{padding-top:clamp(5.5rem,12vh,7rem)}
  .hero__in{grid-template-columns:1fr;gap:1.6rem}
  .avatar{order:-1;width:clamp(140px,38vw,180px);border-radius:20px}
  .avatar::after{border-radius:20px}
  .step::after{display:none}
  .sheet__panel{width:100%}
}

@media (max-width:560px){
  .grid{grid-template-columns:1fr}
  .nav__links{gap:.1rem}
  .nav__links a{padding:.5rem .6rem;font-size:.85rem}
  .hist__r{grid-template-columns:1fr;gap:.2rem}
  .hist__w{padding-top:0}
  .facts,.path{grid-template-columns:1fr}
}

/* ═══ MOBILE ═════════════════════════════════════════════ */

@media (max-width:880px){
  html{scroll-padding-top:72px}
  .hero__bg{opacity:.22}
  .hero__bg .hb{animation:none;opacity:.28;r:.6}
}

/* the nav cannot fit four links and a CTA on a narrow phone,
   so below this width only the mark and the CTA survive */
@media (max-width:660px){
  .nav__in{padding:.7rem var(--pad)}
  .nav__links a:not(.nav__cta){display:none}
  .nav__cta{padding:.6rem 1.15rem !important;font-size:.88rem}
  .nav__name{display:none}
}

@media (max-width:560px){
  /* every tap target at or above 44px */
  .chip{min-height:44px;padding:.6rem 1.1rem}
  .btn--sm{min-height:44px;padding:.65rem 1.1rem;font-size:.9rem}
  .card__a{gap:.55rem}
  .card__a .btn{flex:1 1 auto;justify-content:center}
  .beats a{min-height:40px;padding:.5rem .85rem}
  .sheet__x{width:44px;height:44px;top:.75rem;right:.75rem}
  .links a{padding:1.1rem 1.05rem}

  /* comfortable reading measure and rhythm */
  .hero{padding-top:clamp(5rem,11vh,6rem)}
  .hero__lede{font-size:1rem}
  .sec{padding:clamp(2.4rem,8vw,3.2rem) 0}
  .sec__head{margin-bottom:1.4rem}
  .ch{padding:1.1rem}
  .ch__e{width:46px;height:46px;font-size:1.35rem;border-radius:13px}
  .ch__d{font-size:.96rem}
  .cover{aspect-ratio:16/9}
  .sheet__cover{aspect-ratio:16/9}
  .sheet__in{padding:1.25rem}
  .meta{gap:.8rem}
  .foot{padding-top:clamp(2.6rem,9vw,3.4rem)}
}

@media (max-width:380px){
  .avatar{width:clamp(120px,34vw,150px)}
  .h-xl{font-size:clamp(2rem,9vw,2.4rem)}
  .beats{gap:.35rem}
  .beats a{font-size:.78rem}
  .card__a{flex-direction:column;align-items:stretch}
  .card__a .btn{width:100%}
}