:root{
  /* datanna brand — used sparingly */
  --blue:#244A6D;       /* sampled from logo wordmark */
  --blue-deep:#1A3652;  /* darker tint for solid panels */
  --magenta:#C23069;    /* sampled from logo */
  --green:#A2C760;      /* sampled from logo */
  --green-deep:#39642E; /* leaf veins */

  --paper:#F7F4EC;
  --surface:#FFFDF8;
  --ink:#244A6D;
  --ink-soft:#5D7186;
  --line:rgba(36,74,109,0.13);

  --grad: linear-gradient(100deg, var(--blue) 0%, var(--magenta) 52%, var(--green) 100%);

  --r-md:18px;
  --r-lg:26px;
  --shadow:0 1px 2px rgba(36,74,109,.05), 0 8px 26px rgba(36,74,109,.08);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Inter',system-ui,sans-serif;
  font-size:17px;line-height:1.65;letter-spacing:-0.005em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:var(--blue);color:#fff;}
a{color:inherit;}
img,svg{max-width:100%;}
.wrap{max-width:1060px;margin:0 auto;padding:0 32px;position:relative;z-index:1;}

/* ---------- watercolour as page background ---------- */
.backdrop{
  position:fixed; inset:0; z-index:0; pointer-events:none;
  background-image:image-set(url("assets/hero-watercolor-sm.jpg") 1x, url("assets/hero-watercolor.jpg") 2x);
  background-image:-webkit-image-set(url("assets/hero-watercolor-sm.jpg") 1x, url("assets/hero-watercolor.jpg") 2x);
  background-repeat:no-repeat;
  background-position:right -6vw top -4vh;
  background-size:78vw auto;
  opacity:.5;
  /* fade the artwork out toward the left and bottom so it dissolves into the paper */
  -webkit-mask-image:
    linear-gradient(to left, rgba(0,0,0,1) 0%, rgba(0,0,0,.85) 30%, rgba(0,0,0,0) 78%),
    linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,.8) 45%, rgba(0,0,0,0) 90%);
  -webkit-mask-composite:source-in;
  mask-image:
    linear-gradient(to left, rgba(0,0,0,1) 0%, rgba(0,0,0,.85) 30%, rgba(0,0,0,0) 78%),
    linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,.8) 45%, rgba(0,0,0,0) 90%);
  mask-composite:intersect;
}
/* second, very faint echo low on the page so the artwork feels woven through */
.backdrop-2{
  position:fixed; inset:0; z-index:0; pointer-events:none;
  background-image:url("assets/hero-watercolor-sm.jpg");
  background-repeat:no-repeat;
  background-position:left -14vw bottom -10vh;
  background-size:62vw auto;
  opacity:.22;
  transform:scaleX(-1);
  -webkit-mask-image:linear-gradient(to top right, rgba(0,0,0,1), rgba(0,0,0,0) 65%);
  mask-image:linear-gradient(to top right, rgba(0,0,0,1), rgba(0,0,0,0) 65%);
}

/* ---------- nav ---------- */
header{position:sticky;top:16px;z-index:20;padding:0 32px;margin-top:16px;}
.header-inner{
  max-width:1060px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:10px 12px 10px 16px;
  background:rgba(255,253,248,.82);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);border-radius:999px;box-shadow:var(--shadow);
}
.brand a{display:flex;align-items:center;text-decoration:none;}
.brand img{width:auto;display:block;}
.logo-full{height:30px;}
.logo-mark{display:none;height:30px;}
nav{display:flex;align-items:center;gap:2px;}
nav a{
  display:inline-flex;align-items:center;
  text-decoration:none;color:var(--ink-soft);font-size:14px;font-weight:500;
  min-height:40px;padding:0 14px;border-radius:999px;white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
nav a:hover{background:rgba(36,74,109,.08);color:var(--blue);}
nav a.current{background:rgba(36,74,109,.11);color:var(--blue);}
nav a.cta{background:var(--blue-deep);color:#fff;}
nav a.cta:hover{background:var(--magenta);color:#fff;}
a:focus-visible,button:focus-visible{outline:2px solid var(--magenta);outline-offset:3px;}

/* ---------- type ---------- */
h1,h2,h3{font-family:'Space Grotesk',sans-serif;letter-spacing:-0.035em;font-weight:600;color:var(--blue);}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;color:var(--ink-soft);
  margin:0 0 20px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad);}

/* ---------- hero ---------- */
.hero{padding:96px 0 60px;}
.hero-copy{max-width:620px;}
.hero h1{font-size:clamp(44px,6.2vw,74px);line-height:1.04;margin:0 0 22px;}
.hero p.role{font-size:19px;color:var(--ink-soft);max-width:480px;margin:0 0 34px;}
.actions{display:flex;gap:12px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;
  font-size:14.5px;font-weight:600;text-decoration:none;border:1px solid transparent;
  transition:transform .16s ease,background .18s ease,border-color .18s ease,color .18s ease;
}
.btn.primary{background:var(--blue-deep);color:#fff;box-shadow:var(--shadow);}
.btn.primary:hover{background:var(--magenta);transform:translateY(-2px);}
.btn.ghost{border-color:var(--line);background:rgba(255,253,248,.65);color:var(--blue);}
.btn.ghost:hover{border-color:var(--blue);transform:translateY(-2px);}

/* ---------- sections ---------- */
section.block{padding:56px 0;scroll-margin-top:96px;}
section.block h2{font-size:clamp(28px,3.6vw,40px);margin:0 0 12px;line-height:1.1;}
section.block .lede{color:var(--ink-soft);max-width:540px;margin:0 0 36px;}

/* work */
.entry{
  display:grid;grid-template-columns:150px 1fr;gap:28px;
  padding:24px 26px;border-radius:var(--r-md);
  border-left:2px solid transparent;
  transition:background .2s ease,border-color .2s ease;
}
.entry:hover{background:rgba(255,253,248,.8);border-left-color:var(--magenta);}
.entry .when{font-size:14px;color:var(--ink-soft);font-weight:600;padding-top:2px;}
.entry h3{margin:0 0 2px;font-size:19px;}
.entry .org{color:var(--ink-soft);font-size:15px;margin:0 0 10px;}
.entry p{margin:0;color:var(--ink-soft);font-size:15.5px;}

/* projects */
.proj-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.proj{
  position:relative;background:rgba(255,253,248,.78);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  border:1px solid var(--line);border-radius:var(--r-lg);padding:30px;overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.proj::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);opacity:0;transition:opacity .2s ease;}
.proj:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.proj:hover::before{opacity:1;}
.proj .tags{display:flex;gap:7px;flex-wrap:wrap;margin:0 0 18px;}
.proj .tag{font-size:12px;font-weight:500;color:var(--ink-soft);border:1px solid var(--line);padding:4px 12px;border-radius:999px;}
.proj:hover .tag{border-color:rgba(162,199,96,.7);color:var(--green-deep);}
.proj h3{margin:0 0 8px;font-size:20px;}
.proj p{margin:0 0 22px;color:var(--ink-soft);font-size:15px;flex:1;}
.proj a{font-size:14px;font-weight:600;text-decoration:none;color:var(--blue);display:inline-flex;gap:6px;align-items:center;}
.proj a:hover{color:var(--magenta);gap:11px;}

/* contact */
.contact-card{
  position:relative;overflow:hidden;
  background:var(--blue-deep);color:#fff;border-radius:var(--r-lg);padding:52px 44px;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:32px;
}
.contact-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad);
}
.contact-card h2{margin:0 0 8px;font-size:clamp(26px,3.4vw,38px);color:#fff;}
.contact-card p{margin:0;color:rgba(255,255,255,.7);}
.contact-links{display:flex;gap:10px;flex-wrap:wrap;}
.contact-links a{
  padding:12px 24px;border-radius:999px;border:1px solid rgba(255,255,255,.3);
  text-decoration:none;font-size:14.5px;font-weight:500;color:#fff;
  transition:background .18s ease,color .18s ease;
}
.contact-links a:hover{background:#fff;color:var(--blue);}

footer{padding:32px 0 56px;font-size:14px;color:var(--ink-soft);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;}

/* ---------- about page ---------- */
.essay{max-width:660px;}
.essay p{margin:0 0 24px;font-size:18px;color:var(--ink-soft);}
.essay p.lead{font-size:22px;color:var(--blue);line-height:1.5;}
.pull{
  font-family:'Space Grotesk',sans-serif;font-weight:500;
  font-size:clamp(21px,2.8vw,28px);line-height:1.35;letter-spacing:-0.03em;color:var(--blue);
  margin:40px 0;padding:0 0 0 26px;border-left:3px solid var(--magenta);
}
.skill-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:8px;}
.skill{
  background:rgba(255,253,248,.78);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  border:1px solid var(--line);border-radius:var(--r-md);padding:26px;
}
.skill h3{margin:0 0 6px;font-size:16.5px;}
.skill p{margin:0;font-size:14.5px;color:var(--ink-soft);}
.now-list{list-style:none;margin:44px 0 0;padding:0;max-width:660px;}
.now-list li{padding:16px 0;border-bottom:1px solid var(--line);display:flex;gap:16px;font-size:16px;}
.now-list li:last-child{border-bottom:none;}
.now-list b{font-weight:600;min-width:130px;color:var(--blue);}
.now-list span{color:var(--ink-soft);}

@media (max-width:880px){
  .backdrop{background-size:150vw auto;background-position:right -30vw top -2vh;opacity:.34;}
  .backdrop-2{display:none;}
  .proj-grid{grid-template-columns:1fr;}
  .skill-grid{grid-template-columns:1fr;}
  .entry{grid-template-columns:1fr;gap:6px;padding:22px 18px;}
  .contact-card{padding:38px 26px;}
  .wrap{padding:0 20px;}
  header{padding:0 16px;top:10px;margin-top:10px;}
  .hero{padding:56px 0 36px;}
  section.block{padding:44px 0;scroll-margin-top:80px;}
}

/* phones */
@media (max-width:640px){
  body{font-size:16.5px;}
  .header-inner{padding:8px 8px 8px 12px;gap:10px;}
  .logo-full{display:none;}
  .logo-mark{display:block;height:30px;}
  /* nav scrolls horizontally instead of wrapping or overflowing */
  nav{
    overflow-x:auto;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:none;
    mask-image:linear-gradient(to right,#000 88%,transparent);
    -webkit-mask-image:linear-gradient(to right,#000 88%,transparent);
  }
  nav::-webkit-scrollbar{display:none;}
  nav a{padding:0 12px;font-size:14px;}

  .hero h1{font-size:clamp(32px,8.6vw,44px);line-height:1.08;}
  .hero p.role{font-size:17px;}
  section.block h2{font-size:clamp(25px,6.4vw,32px);}
  .essay p{font-size:17px;}
  .essay p.lead{font-size:19.5px;}
  .pull{font-size:20px;padding-left:18px;margin:32px 0;}

  /* full-width tap targets for the two main buttons */
  .actions{gap:10px;}
  .btn{min-height:48px;padding:0 24px;justify-content:center;flex:1 1 100%;}
  .contact-links{width:100%;}
  .contact-links a{min-height:48px;display:inline-flex;align-items:center;flex:1 1 auto;justify-content:center;}

  .proj{padding:24px;border-radius:20px;}
  .proj a{min-height:44px;align-items:center;}
  .contact-card{padding:32px 22px;border-radius:20px;}
  .now-list li{flex-direction:column;gap:2px;padding:14px 0;}
  .now-list b{min-width:0;}
  footer{flex-direction:column;gap:6px;padding:24px 0 44px;}
}

/* small phones */
@media (max-width:380px){
  .wrap{padding:0 16px;}
  header{padding:0 12px;}
  .backdrop{opacity:.26;}
  .hero{padding:44px 0 30px;}
}

/* blur is expensive on low-end phones — drop it where it is decorative */
@media (max-width:640px) and (hover:none){
  .proj,.skill{backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(255,253,248,.9);}
}

/* landscape phones: don't let the hero eat the screen */
@media (max-height:520px) and (orientation:landscape){
  .hero{padding:32px 0 24px;}
  header{position:static;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition:none!important;}
}