/* ============================================================
   Sarah Horton — public site styles
   Modern fine-art portfolio: clean, white, sans-serif.
   Edit the tokens in :root to restyle the whole site.
   ============================================================ */
:root{
  --ink:#141414;          /* main text            */
  --soft:#565656;         /* secondary text       */
  --muted:#8a8a8a;        /* captions / meta      */
  --line:#ececec;         /* hairline borders     */
  --bg:#ffffff;           /* page background      */
  --accent:#141414;       /* links / active nav   */
  --maxw:1320px;          /* wide (galleries)     */
  --measure:680px;        /* text column width    */
  --gap:34px;             /* gallery gutter       */
  --lb-bg:rgba(255,255,255,.98); /* lightbox backdrop (set to rgba(18,18,18,.94) for a dark one) */
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:17px;line-height:1.65;
  font-weight:400;letter-spacing:-0.003em;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}

.container{max-width:var(--maxw);margin:0 auto;padding:64px 40px 96px}

/* ---------------------------------------------------------- header / nav */
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line)}
.nav{max-width:var(--maxw);margin:0 auto;display:flex;align-items:baseline;
  justify-content:space-between;padding:22px 40px}
.brand{font-size:1.15rem;font-weight:600;letter-spacing:-0.01em;color:var(--ink)}
.brand:hover{text-decoration:none;opacity:.7}
.nav-links{list-style:none;display:flex;gap:32px;margin:0;padding:0}
.nav-links a{color:var(--soft);font-size:.7rem;font-weight:500;
  letter-spacing:.18em;text-transform:uppercase}
.nav-links a:hover{color:var(--ink);text-decoration:none}
.nav-links a.active{color:var(--ink)}
.nav-toggle{display:none;background:none;border:0;font-size:1.4rem;cursor:pointer;color:var(--ink);line-height:1}

/* Gallery dropdown */
.nav-links .has-sub{position:relative}
.dd-toggle{display:inline-flex;align-items:center;gap:5px}
.dd-caret{font-size:.6em;opacity:.6;transition:transform .2s}
.nav-links .has-sub:hover .dd-caret{transform:translateY(1px)}
.subnav{position:absolute;top:100%;left:0;margin:0;padding:10px 0;list-style:none;
  min-width:230px;background:#fff;border:1px solid var(--line);
  box-shadow:0 16px 36px rgba(0,0,0,.07);border-radius:2px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s;z-index:40}
.nav-links .has-sub:hover .subnav,
.nav-links .has-sub:focus-within .subnav{opacity:1;visibility:visible;transform:translateY(0)}
.subnav li{border:0}
.subnav a{display:block;padding:9px 20px;font-size:.86rem;font-weight:400;
  letter-spacing:0;text-transform:none;color:var(--soft);white-space:nowrap}
.subnav a:hover{color:var(--ink);background:#faf9f7;text-decoration:none}

/* ------------------------------------------------------------ typography */
h1{font-size:clamp(2.1rem,4.4vw,3.1rem);font-weight:400;letter-spacing:-0.025em;
  line-height:1.08;margin:0 0 .5em}
h2{font-size:1.45rem;font-weight:500;letter-spacing:-0.015em;margin:1.6em 0 .5em}
p{margin:0 0 1.15em}

.intro{max-width:var(--measure)}
.lede{font-size:clamp(1.3rem,2.4vw,1.6rem);line-height:1.4;font-weight:300;
  color:var(--soft);letter-spacing:-0.01em;margin:0 0 1.4em}

/* Rich-text areas (bio, project intros, texts page) */
.richtext{max-width:var(--measure);color:var(--ink)}
.richtext p{margin:0 0 1.2em}
.richtext h2{font-size:1.35rem;font-weight:500;margin:1.6em 0 .4em}
.richtext ul,.richtext ol{margin:0 0 1.2em 1.15em;padding:0}
.richtext li{margin:.35em 0}
.richtext a{color:var(--ink);text-decoration:underline;text-underline-offset:3px;
  text-decoration-color:#c9c9c9;text-decoration-thickness:1px}
.richtext a:hover{text-decoration-color:var(--ink)}

/* --------------------------------------------------------- gallery index */
.proj-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));
  gap:56px 40px}
.proj-card{display:block;color:var(--ink)}
.proj-card:hover{text-decoration:none}
.proj-thumb{display:block;aspect-ratio:1/1;overflow:hidden;background:#f5f5f5}
.proj-thumb img{width:100%;height:100%;object-fit:cover;
  transition:transform .6s cubic-bezier(.2,.7,.2,1),opacity .4s}
.proj-card:hover .proj-thumb img{transform:scale(1.035);opacity:.94}
.proj-title{display:block;margin-top:16px;font-size:.78rem;font-weight:500;
  letter-spacing:.14em;text-transform:uppercase;color:var(--ink)}

/* ---------------------------------------------------------- project view */
.project-hero,.home-hero{width:100%;height:clamp(260px,46vh,540px);overflow:hidden;
  background:#f2f1ee;margin:0 0 40px}
.project-hero img,.home-hero img{width:100%;height:100%;object-fit:cover;display:block}
/* Home header: 16:9 banner under the tagline, no wider than the text column */
.home-hero{width:100%;max-width:var(--measure);height:auto;aspect-ratio:16/9;margin:6px 0 34px}
.project h1{margin-bottom:.35em}
.gallery{columns:320px;column-gap:var(--gap);margin:44px 0 0}
.tile{break-inside:avoid;-webkit-column-break-inside:avoid;margin:0 0 var(--gap)}
.tile a{display:block;overflow:hidden;background:#f5f5f5}
.tile img{width:100%;height:auto;cursor:zoom-in;
  transition:opacity .4s,transform .6s cubic-bezier(.2,.7,.2,1)}
.tile a:hover img{opacity:.92}
.tile figcaption{font-size:.82rem;line-height:1.5;color:var(--muted);
  margin-top:12px;letter-spacing:0}
.links-out{max-width:var(--measure);font-size:.9rem;color:var(--muted);
  margin-top:2.6em;border-top:1px solid var(--line);padding-top:1.4em}

/* ---------------------------------------------------------------- contact */
/* "Website built by" credit on the home page */
.site-credit{max-width:var(--measure);margin:52px 0 0;padding-top:20px;
  border-top:1px solid var(--line);font-size:.8rem;color:var(--muted);letter-spacing:.02em}
.site-credit a{color:var(--soft);text-decoration:underline;text-underline-offset:2px;text-decoration-color:#c9c9c9}
.site-credit a:hover{color:var(--ink);text-decoration-color:var(--ink)}

.contact{max-width:var(--measure)}
.contact .email{font-size:clamp(1.3rem,2.6vw,1.7rem);font-weight:300;letter-spacing:-0.01em}
.contact .email a{color:var(--ink);text-decoration:underline;text-underline-offset:4px;
  text-decoration-color:#c9c9c9}
.contact .email a:hover{text-decoration-color:var(--ink)}

/* --------------------------------------------------------------- lightbox */
.lightbox{position:fixed;inset:0;z-index:100;display:none;
  align-items:center;justify-content:center;
  background:var(--lb-bg);opacity:0;transition:opacity .28s ease}
.lightbox.open{display:flex;opacity:1}
body.lb-lock{overflow:hidden}
.lb-stage{margin:0;max-width:92vw;max-height:90vh;
  display:flex;flex-direction:column;align-items:center;gap:16px}
.lb-img{max-width:92vw;max-height:82vh;width:auto;height:auto;object-fit:contain;
  background:#f2f1ee;box-shadow:0 20px 60px rgba(0,0,0,.16);
  opacity:0;transition:opacity .25s ease;cursor:default}
.lb-img.ready{opacity:1}
.lb-cap{display:flex;gap:14px;align-items:baseline;justify-content:center;
  color:var(--soft);font-size:.83rem;line-height:1.5;max-width:70ch;text-align:center}
.lb-count{color:var(--muted);font-size:.75rem;letter-spacing:.06em;
  font-variant-numeric:tabular-nums;white-space:nowrap}
.lb-close,.lb-prev,.lb-next{position:fixed;background:none;border:0;color:var(--ink);
  cursor:pointer;opacity:.5;z-index:2;line-height:1;-webkit-tap-highlight-color:transparent;
  transition:opacity .2s ease,transform .2s ease}
.lb-close:hover,.lb-prev:hover,.lb-next:hover{opacity:1}
.lb-close{top:20px;right:26px;font-size:32px;font-weight:300}
.lb-prev,.lb-next{top:50%;transform:translateY(-50%);font-size:50px;font-weight:200;padding:14px 22px}
.lb-prev{left:6px}
.lb-next{right:6px}
.lb-prev:hover{transform:translateY(-50%) translateX(-3px)}
.lb-next:hover{transform:translateY(-50%) translateX(3px)}
@media(max-width:680px){
  .lb-prev,.lb-next{font-size:38px;padding:12px}
  .lb-close{top:12px;right:16px;font-size:30px}
  .lb-img{max-height:72vh}
}

/* ----------------------------------------------------------------- footer */
.site-footer{border-top:1px solid var(--line);margin-top:40px;padding:44px 40px;
  text-align:center}
.site-footer p{margin:0;color:var(--muted);font-size:.7rem;
  letter-spacing:.16em;text-transform:uppercase}

/* ------------------------------------------------------------ responsive */
@media(max-width:820px){
  .container{padding:44px 24px 72px}
  .nav{padding:18px 24px}
}
@media(max-width:680px){
  .nav-toggle{display:block}
  .nav-links{position:absolute;top:100%;left:0;right:0;background:#fff;
    flex-direction:column;gap:0;border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;transition:max-height .28s ease}
  body.nav-open .nav-links{max-height:calc(100vh - 56px);overflow-y:auto}
  .nav-links li{border-top:1px solid var(--line)}
  .nav-links a{display:block;padding:16px 24px;font-size:.8rem}
  /* dropdown becomes an inline, indented list inside the mobile menu */
  .subnav{position:static;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border:0;border-radius:0;padding:0;min-width:0;background:#faf9f7}
  .subnav li{border-top:1px solid var(--line)}
  .subnav a{padding:13px 24px 13px 40px;font-size:.85rem}
  .dd-caret{display:none}
  .proj-grid{gap:40px 24px}
  .gallery{columns:240px;column-gap:18px}
}