/*
Theme Name: sheeks.co
Theme URI: https://sheeks.co
Author: Michael Sheeks
Description: Personal portfolio theme for sheeks.co. Spectrum-rail layout built around the sheeks.co ribbon mark.
Version: 1.0.0
License: GNU General Public License v2 or later
Text Domain: sheeks-co
*/
/* ============================================================
   sheeks.co — tokens
   The logo is one ribbon passing through the whole spectrum.
   The page is one scroll passing through the same spectrum.
   Every section and every project sits at a hue coordinate.
   ============================================================ */
:root{
  --ink:#14151C;
  --ink-2:#4A4D5C;
  --ink-3:#8C90A0;
  --paper:#F6F6F9;
  --card:#FFFFFF;
  --line:#E3E4EC;

  --c1:#22C3F3;  /* cyan    */
  --c2:#3B7BF6;  /* blue    */
  --c3:#8B5CF6;  /* violet  */
  --c4:#EC3F8E;  /* magenta */
  --c5:#F5533D;  /* red     */
  --c6:#FBA92C;  /* amber   */

  --ribbon:linear-gradient(180deg,var(--c1) 0%,var(--c2) 20%,var(--c3) 40%,var(--c4) 60%,var(--c5) 80%,var(--c6) 100%);
  --ribbon-x:linear-gradient(90deg,var(--c1),var(--c2),var(--c3),var(--c4),var(--c5),var(--c6));

  --display:"Archivo",system-ui,sans-serif;
  --body:"Instrument Sans",system-ui,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,monospace;

  --rail:112px;
  --pad:clamp(20px,5vw,64px);
  --maxw:1180px;
  --hue:var(--c1);
  --mark:url('assets/sheeks-mark.png');
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--body);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit}
::selection{background:var(--c3);color:#fff}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:2px}

/* ---------- shared type utilities ---------- */
.u-mono{
  font-family:var(--mono);
  font-size:.6875rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--ink-3);
}
.u-shell{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}

/* ---------- spectrum rail (desktop) ---------- */
.rail{
  position:fixed;left:40px;top:0;bottom:0;width:44px;
  display:none;z-index:40;
  padding:104px 0 72px;
}
.rail-bar{
  position:absolute;left:0;top:104px;bottom:72px;width:3px;
  background:var(--ribbon);border-radius:2px;opacity:.9;
  transform-origin:top;
}
.rail-tick{
  position:absolute;left:0;display:flex;align-items:center;gap:9px;
  background:none;border:0;cursor:pointer;padding:0;
  transform:translateY(-50%);
}
.rail-tick::before{
  content:"";display:block;height:2px;width:9px;border-radius:2px;
  background:var(--tk);opacity:.45;
  transition:width .35s cubic-bezier(.2,.8,.2,1),opacity .3s;
}
.rail-label{
  font-family:var(--mono);font-size:.625rem;letter-spacing:.13em;text-transform:uppercase;
  color:var(--ink-3);white-space:nowrap;
  opacity:0;transform:translateX(-6px);
  transition:opacity .3s,transform .35s cubic-bezier(.2,.8,.2,1);
}
.rail-tick:hover::before,.rail-tick.is-on::before{width:20px;opacity:1}
.rail-tick:hover .rail-label,.rail-tick.is-on .rail-label{opacity:1;transform:none}
.rail-tick.is-on .rail-label{color:var(--ink)}
.rail-dot{
  position:absolute;left:-3px;width:9px;height:9px;border-radius:50%;
  background:var(--hue);box-shadow:0 0 0 4px var(--paper);
  transition:top .18s linear,background .5s;
}
@media(min-width:1120px){
  .rail{display:block}
  .u-shell{padding-left:var(--rail)}
}

/* ---------- top progress (mobile) ---------- */
.progress{
  position:fixed;top:0;left:0;height:3px;width:100%;z-index:60;
  background:var(--ribbon-x);
  transform-origin:left;transform:scaleX(0);
}
@media(min-width:1120px){.progress{display:none}}

/* ---------- header ---------- */
.head{
  position:sticky;top:0;z-index:50;
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  background:color-mix(in srgb,var(--paper) 78%,transparent);
  border-bottom:1px solid transparent;
  transition:border-color .3s;
}
.head.is-stuck{border-bottom-color:var(--line)}
.head-in{
  max-width:var(--maxw);margin:0 auto;
  padding:14px var(--pad);
  display:flex;align-items:center;gap:14px;
}
@media(min-width:1120px){.head-in{padding-left:var(--rail)}}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;margin-right:auto}
.brand-mark{width:26px;height:21px;flex:none;background:var(--mark) center/contain no-repeat}
.brand-word{
  font-family:var(--display);font-weight:600;
  font-variation-settings:"wdth" 108;
  font-size:1.0625rem;letter-spacing:-.01em;
}
.nav{display:none;gap:26px}
.nav-link{
  font-size:.9375rem;text-decoration:none;color:var(--ink-2);
  position:relative;padding-bottom:2px;transition:color .2s;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1.5px;
  background:var(--ribbon-x);transform:scaleX(0);transform-origin:left;
  transition:transform .3s cubic-bezier(.2,.8,.2,1);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
@media(min-width:720px){.nav{display:flex}}
.head-cta{
  font-size:.875rem;font-weight:500;text-decoration:none;
  padding:8px 16px;border-radius:999px;
  border:1px solid var(--line);background:var(--card);
  transition:border-color .25s,transform .25s;
}
.head-cta:hover{border-color:var(--ink);transform:translateY(-1px)}

/* ---------- hero ---------- */
.hero{position:relative;padding:clamp(56px,11vh,120px) 0 clamp(64px,10vh,110px);overflow:hidden}
.hero-glyph{
  position:absolute;right:-9%;top:8%;width:min(58vw,620px);aspect-ratio:308/252;
  background:var(--mark) center/contain no-repeat;
  opacity:.11;pointer-events:none;
  filter:saturate(1.15);
  animation:glyphIn 1.6s cubic-bezier(.16,1,.3,1) both;
}
@keyframes glyphIn{from{opacity:0;transform:translateX(50px) scale(1.06)}to{opacity:.11;transform:none}}
.hero-eyebrow{display:flex;align-items:center;gap:10px;margin-bottom:26px}
.hero-eyebrow::before{
  content:"";width:34px;height:3px;border-radius:2px;background:var(--ribbon-x);
}
.hero-h1{
  font-family:var(--display);
  font-weight:800;
  font-variation-settings:"wdth" 112;
  font-size:clamp(2.5rem,8.2vw,6rem);
  line-height:.94;
  letter-spacing:-.035em;
  max-width:15ch;
}
.hero-h1 .ln{display:block;overflow:hidden}
.hero-h1 .ln > span{display:block;animation:riseIn .95s cubic-bezier(.16,1,.3,1) both}
.hero-h1 .ln:nth-child(2) > span{animation-delay:.09s}
.hero-h1 .ln:nth-child(3) > span{animation-delay:.18s}
@keyframes riseIn{from{transform:translateY(105%)}to{transform:none}}
.spec{
  background:linear-gradient(96deg,var(--c1),var(--c2),var(--c3),var(--c4),var(--c5),var(--c6));
  background-size:280% 100%;
  -webkit-background-clip:text;background-clip:text;
  color:transparent;
  animation:sweep 2.4s cubic-bezier(.4,0,.2,1) .35s both;
}
@keyframes sweep{from{background-position:100% 0}to{background-position:22% 0}}
.hero-sub{
  margin-top:28px;max-width:52ch;
  font-size:clamp(1.0625rem,1.9vw,1.25rem);
  color:var(--ink-2);
  animation:fadeUp .9s cubic-bezier(.16,1,.3,1) .34s both;
}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.hero-acts{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;
  animation:fadeUp .9s cubic-bezier(.16,1,.3,1) .46s both;
}
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-size:.9375rem;font-weight:500;text-decoration:none;
  padding:13px 22px;border-radius:999px;
  transition:transform .25s cubic-bezier(.2,.8,.2,1),box-shadow .25s,border-color .25s;
}
.btn-solid{background:var(--ink);color:var(--paper);box-shadow:0 1px 2px rgba(20,21,28,.2)}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 10px 24px -10px rgba(20,21,28,.55)}
.btn-ghost{border:1px solid var(--line);background:var(--card)}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-2px)}
.btn .arw{transition:transform .3s cubic-bezier(.2,.8,.2,1)}
.btn:hover .arw{transform:translateX(4px)}

/* ---------- section frame ---------- */
.sec{position:relative;padding:clamp(56px,9vh,104px) 0}
.sec::before{
  content:"";position:absolute;inset:0 0 auto;height:340px;pointer-events:none;
  background:radial-gradient(60% 100% at 12% 0%,var(--hue) 0%,transparent 72%);
  opacity:.055;
}
.sec-head{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;margin-bottom:8px}
.sec-title{
  font-family:var(--display);font-weight:800;
  font-variation-settings:"wdth" 108;
  font-size:clamp(1.75rem,4.2vw,2.75rem);
  letter-spacing:-.025em;line-height:1.05;
}
.sec-note{max-width:56ch;color:var(--ink-2);margin-top:14px;margin-bottom:44px}

/* ---------- work index rows ---------- */
.idx{border-top:1px solid var(--line)}
.row{
  position:relative;display:block;text-decoration:none;
  padding:30px 0;
  border-bottom:1px solid transparent;
  background-image:linear-gradient(90deg,var(--hue),color-mix(in srgb,var(--hue) 12%,transparent) 62%,transparent);
  background-repeat:no-repeat;
  background-size:100% 1px;
  background-position:left bottom;
  transition:padding-left .4s cubic-bezier(.2,.8,.2,1);
}
.row::before{
  content:"";position:absolute;left:-24px;right:-24px;top:0;bottom:0;
  border-radius:12px;
  background:linear-gradient(90deg,color-mix(in srgb,var(--hue) 13%,transparent),transparent 78%);
  opacity:0;transition:opacity .35s;pointer-events:none;
}
.row:hover::before{opacity:1}
.row:hover{padding-left:14px}
.row-top{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.row-chip{
  width:9px;height:9px;border-radius:50%;flex:none;
  background:var(--hue);
  box-shadow:0 0 0 0 color-mix(in srgb,var(--hue) 40%,transparent);
  transition:box-shadow .4s,transform .4s cubic-bezier(.2,.8,.2,1);
}
.row:hover .row-chip{box-shadow:0 0 0 6px color-mix(in srgb,var(--hue) 22%,transparent);transform:scale(1.15)}
.row-kind{font-family:var(--mono);font-size:.625rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3)}
.row-main{display:flex;align-items:flex-start;justify-content:space-between;gap:28px}
.row-title{
  font-family:var(--display);font-weight:700;
  font-variation-settings:"wdth" 106;
  font-size:clamp(1.3rem,2.9vw,1.9rem);
  letter-spacing:-.022em;line-height:1.14;
}
.row-desc{margin-top:9px;max-width:62ch;color:var(--ink-2);font-size:.9875rem}
.row-arw{
  flex:none;margin-top:6px;color:var(--ink-3);
  opacity:0;transform:translate(-6px,0);
  transition:opacity .3s,transform .35s cubic-bezier(.2,.8,.2,1),color .3s;
}
.row:hover .row-arw{opacity:1;transform:none;color:var(--hue)}
.idx-more{padding-top:26px;color:var(--ink-3);font-size:.9375rem}

/* book feature */
.book{
  position:relative;
  display:grid;gap:clamp(24px,4vw,52px);
  grid-template-columns:1fr;
  align-items:center;
  padding:clamp(26px,4vw,44px);
  border-radius:20px;
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:0 24px 60px -46px rgba(20,21,28,.5);
  overflow:hidden;
}
.book::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--ribbon);
}
.book-art{
  width:100%;height:auto;aspect-ratio:308/385;object-fit:cover;
  border-radius:10px;
  border:1px solid color-mix(in srgb,var(--ink) 10%,transparent);
  box-shadow:
    0 2px 4px rgba(20,21,28,.10),
    0 18px 40px -22px rgba(20,21,28,.55);
  transition:transform .5s cubic-bezier(.2,.8,.2,1),box-shadow .5s;
}
.book:hover .book-art{
  transform:translateY(-5px) rotate(-.9deg);
  box-shadow:
    0 2px 4px rgba(20,21,28,.10),
    0 30px 56px -24px rgba(20,21,28,.6);
}
.book-title{
  font-family:var(--display);font-weight:800;
  font-variation-settings:"wdth" 110;
  font-size:clamp(1.6rem,3.6vw,2.4rem);letter-spacing:-.028em;line-height:1.06;
  margin:12px 0 14px;
}
.book-copy{color:var(--ink-2);max-width:48ch}
.book-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{
  font-family:var(--mono);font-size:.625rem;letter-spacing:.12em;text-transform:uppercase;
  padding:6px 11px;border-radius:999px;border:1px solid var(--line);color:var(--ink-2);
}
@media(min-width:820px){.book{grid-template-columns:230px 1fr}}

/* ---------- approach ---------- */
.appr{display:grid;gap:clamp(28px,4vw,56px);grid-template-columns:1fr}
@media(min-width:860px){.appr{grid-template-columns:1.1fr .9fr}}
.appr-p{color:var(--ink-2);margin-bottom:18px;max-width:56ch}
.appr-p strong{color:var(--ink);font-weight:600}
.stack-h{margin-bottom:16px}
.stack{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  font-family:var(--mono);font-size:.6875rem;letter-spacing:.04em;
  padding:8px 13px;border-radius:8px;
  background:var(--card);border:1px solid var(--line);color:var(--ink-2);
  transition:border-color .25s,color .25s,transform .25s;
}
.chip:hover{border-color:var(--hue);color:var(--ink);transform:translateY(-2px)}

/* ---------- contact ---------- */
.cta{
  position:relative;overflow:hidden;
  border-radius:22px;background:var(--ink);color:var(--paper);
  padding:clamp(34px,6vw,68px);
  text-align:center;
}
.cta::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--ribbon-x);
}
.cta-h{
  font-family:var(--display);font-weight:800;
  font-variation-settings:"wdth" 112;
  font-size:clamp(1.9rem,5.4vw,3.4rem);letter-spacing:-.032em;line-height:1;
}
.cta-p{margin:18px auto 0;max-width:42ch;color:#B9BCC9}
.cta-mail{
  display:inline-flex;align-items:center;gap:10px;margin-top:30px;
  font-family:var(--display);font-weight:600;font-variation-settings:"wdth" 104;
  font-size:clamp(1.05rem,2.6vw,1.5rem);letter-spacing:-.015em;
  text-decoration:none;color:#fff;
  padding-bottom:6px;border-bottom:2px solid rgba(255,255,255,.28);
  transition:border-color .3s;
}
.cta-mail:hover{border-bottom-color:#fff}
.cta-links{display:flex;justify-content:center;flex-wrap:wrap;gap:22px;margin-top:34px}
.cta-links a{font-size:.875rem;color:#B9BCC9;text-decoration:none;transition:color .2s}
.cta-links a:hover{color:#fff}

/* ---------- footer ---------- */
.foot{
  padding:34px 0 46px;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.foot-mark{width:20px;height:17px;flex:none;opacity:.85;background:var(--mark) center/contain no-repeat}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(22px);transition:opacity .8s cubic-bezier(.16,1,.3,1),transform .8s cubic-bezier(.16,1,.3,1)}
.rv.in{opacity:1;transform:none}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-delay:0ms!important;transition-duration:.001ms!important}
  .rv{opacity:1;transform:none}
  .hero-glyph{opacity:.11}
}