/* ===========================================================
   Christopher Mir — Portfolio
   Easy edit points:
   --paper, --ink, --accent  → colors
   Project images: see index.html tile comment
   =========================================================== */

:root{
  --paper:#f4f1ea;
  --paper-2:#ece7dc;
  --ink:#15130f;
  --ink-soft:#5b574e;
  --accent:#e2401f;
  --line:rgba(21,19,15,.14);
  --maxw:1320px;
  --pad:clamp(20px,5vw,80px);
  --ease:cubic-bezier(.22,1,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}

body{
  background:var(--paper);
  color:var(--ink);
  font-family:"Inter",system-ui,sans-serif;
  font-size:clamp(15px,1.05vw,17px);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

a{color:inherit;text-decoration:none}
em{font-style:italic}

/* ---------- NAV ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px var(--pad);
  mix-blend-mode:difference;color:#fff;
  transition:padding .4s var(--ease);
}
.nav__brand{
  font-weight:600;letter-spacing:-.02em;font-size:1.05rem;
  display:flex;align-items:flex-start;
}
.nav__brand-mark{font-size:.6em;margin-left:2px;margin-top:.2em}
.nav__links{display:flex;gap:32px}
.nav__links a{position:relative;font-size:.95rem}
.nav__links a::after{
  content:"";position:absolute;left:0;bottom:-4px;height:1px;width:0;
  background:currentColor;transition:width .35s var(--ease);
}
.nav__links a:hover::after{width:100%}

.nav__right{display:flex;align-items:center;gap:18px}
.lang{
  background:none;border:none;color:inherit;cursor:pointer;
  font-family:inherit;font-size:.9rem;letter-spacing:.04em;display:flex;gap:5px;
}
.lang__opt{opacity:.5;transition:opacity .25s}
.lang__opt.is-active{opacity:1}
.lang__sep{opacity:.4}

.nav__burger{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:6px}
.nav__burger span{width:24px;height:2px;background:currentColor;transition:.3s var(--ease);transform-origin:center}
.nav.menu-open .nav__burger span:first-child{transform:translateY(3.5px) rotate(45deg)}
.nav.menu-open .nav__burger span:last-child{transform:translateY(-3.5px) rotate(-45deg)}

/* ---------- HERO ---------- */
.hero{
  min-height:100svh;
  padding:0 var(--pad);
  display:flex;flex-direction:column;justify-content:center;
  max-width:var(--maxw);margin:0 auto;
  position:relative;
}
.hero__eyebrow{
  text-transform:uppercase;letter-spacing:.18em;font-size:.78rem;
  color:var(--ink-soft);margin-bottom:clamp(20px,4vh,48px);
}
.hero__title{
  font-family:"Instrument Serif",serif;
  font-weight:400;
  font-size:clamp(3rem,11vw,11rem);
  line-height:.95;
  letter-spacing:-.02em;
}
.hero__title span{display:block}
.hero__title em{color:var(--accent)}
.hero__foot{
  margin-top:clamp(36px,7vh,72px);
  display:flex;justify-content:space-between;align-items:flex-end;
  gap:24px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding-top:20px;
  color:var(--ink-soft);font-size:.9rem;
}
.hero__scroll{color:var(--ink);font-weight:500}
.hero__scroll:hover{color:var(--accent)}

/* ---------- MARQUEE ---------- */
.marquee{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  overflow:hidden;padding:22px 0;
  background:var(--paper-2);
}
.marquee__track{
  display:flex;gap:34px;align-items:center;width:max-content;
  font-family:"Instrument Serif",serif;
  font-size:clamp(1.6rem,4vw,2.6rem);
  white-space:nowrap;
  animation:scroll 26s linear infinite;
}
.marquee__track .dot{color:var(--accent)}
.marquee:hover .marquee__track{animation-play-state:paused}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- SECTION HEAD ---------- */
.section-head{
  display:flex;align-items:baseline;justify-content:space-between;
  max-width:var(--maxw);margin:0 auto;padding:clamp(70px,12vh,140px) var(--pad) clamp(28px,5vh,52px);
  border-bottom:1px solid var(--line);
}
.section-head__title{
  font-family:"Instrument Serif",serif;font-weight:400;
  font-size:clamp(2rem,5vw,3.6rem);letter-spacing:-.02em;
}
.section-head__num{color:var(--ink-soft);font-size:.85rem;letter-spacing:.05em}

/* ---------- WORK GRID ---------- */
.work{max-width:var(--maxw);margin:0 auto}
.filters{
  display:flex;gap:10px;flex-wrap:wrap;
  padding:26px var(--pad);
}
.filter{
  background:none;border:1px solid var(--line);border-radius:100px;
  padding:8px 16px;font-family:inherit;font-size:.85rem;color:var(--ink-soft);
  cursor:pointer;transition:.25s var(--ease);
}
.filter:hover{border-color:var(--ink);color:var(--ink)}
.filter.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper)}

.grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:clamp(12px,1.5vw,22px);
  padding:10px var(--pad) 40px;
}
.tile{
  position:relative;cursor:pointer;
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
.tile.is-hidden{display:none}
.tile__media{
  aspect-ratio:4/3;border-radius:6px;overflow:hidden;
  background-size:cover;background-position:center;
  position:relative;transition:transform .6s var(--ease);
}
.tile--tall .tile__media{aspect-ratio:4/5}

/* placeholder tones (until real images are dropped in) */
.tile[data-tone="a"] .tile__media{background:linear-gradient(135deg,#e6ddcb,#cdbfa3)}
.tile[data-tone="b"] .tile__media{background:linear-gradient(135deg,#2b2a26,#4a4640)}
.tile[data-tone="c"] .tile__media{background:linear-gradient(135deg,#e2401f,#b32d12)}
.tile[data-tone="d"] .tile__media{background:linear-gradient(135deg,#d9d3c4,#b7ad96)}
.tile[data-tone="e"] .tile__media{background:linear-gradient(135deg,#1f2a2e,#37474d)}
.tile[data-tone="f"] .tile__media{background:linear-gradient(135deg,#efe7d6,#d8c9ad)}
.tile[data-tone="g"] .tile__media{background:linear-gradient(135deg,#c45a2b,#e2a04f)}
.tile[data-tone="h"] .tile__media{background:linear-gradient(135deg,#3a352d,#6a6052)}
.tile.has-img .tile__media{background-color:transparent}

.tile__media::after{
  content:"";position:absolute;inset:0;background:rgba(21,19,15,0);
  transition:background .5s var(--ease);
}
.tile:hover .tile__media{transform:scale(1.015)}
.tile:hover .tile__media::after{background:rgba(21,19,15,.18)}

.tile__meta{display:flex;justify-content:space-between;align-items:baseline;padding:14px 2px 0;gap:14px}
.tile__meta h3{font-weight:500;font-size:1rem;letter-spacing:-.01em}
.tile__meta p{color:var(--ink-soft);font-size:.82rem;text-align:right;white-space:nowrap}

/* ---------- ABOUT ---------- */
.about{max-width:var(--maxw);margin:0 auto}
.about__body{padding:clamp(40px,7vh,80px) var(--pad) 0}
.about__lead{
  font-family:"Instrument Serif",serif;font-weight:400;
  font-size:clamp(1.7rem,3.6vw,3rem);line-height:1.12;letter-spacing:-.01em;
  max-width:18ch;margin-bottom:clamp(48px,8vh,90px);
}
.about__cols{
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,5vw,80px);
  max-width:900px;margin-left:auto;
}
.about__cols p{color:var(--ink-soft);font-size:1.05rem;line-height:1.6}
.about__quote{
  font-family:"Instrument Serif",serif;font-size:clamp(1.4rem,3vw,2.2rem);
  text-align:center;padding:clamp(60px,12vh,140px) 0 0;color:var(--ink);
}

/* ---------- CONTACT ---------- */
.contact{max-width:var(--maxw);margin:0 auto}
.contact__body{padding:clamp(40px,7vh,80px) var(--pad) clamp(60px,10vh,120px)}
.contact__big{
  font-family:"Instrument Serif",serif;font-weight:400;
  font-size:clamp(1.8rem,4vw,3.2rem);line-height:1.1;max-width:16ch;
  margin-bottom:clamp(20px,4vh,40px);
}
.contact__email{
  display:inline-block;
  font-size:clamp(1.6rem,6vw,4.4rem);
  font-family:"Instrument Serif",serif;letter-spacing:-.02em;
  border-bottom:2px solid var(--line);transition:.35s var(--ease);
  word-break:break-all;
}
.contact__email:hover{color:var(--accent);border-color:var(--accent)}
.contact__details{
  display:flex;gap:clamp(28px,6vw,90px);flex-wrap:wrap;
  margin-top:clamp(48px,8vh,90px);border-top:1px solid var(--line);padding-top:32px;
}
.contact__details > div{display:flex;flex-direction:column;gap:6px}
.contact__label{text-transform:uppercase;letter-spacing:.14em;font-size:.72rem;color:var(--ink-soft)}
.contact__details a:hover{color:var(--accent)}

/* ---------- FOOTER ---------- */
.footer{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  padding:24px var(--pad);border-top:1px solid var(--line);
  font-size:.82rem;color:var(--ink-soft);
}
.footer a:hover{color:var(--accent)}

/* ---------- REVEAL ANIM ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- RESPONSIVE ---------- */
@media(max-width:900px){
  .grid{grid-template-columns:repeat(2,1fr)}
  .about__cols{grid-template-columns:1fr}
}
@media(max-width:640px){
  .nav__brand,.nav__right{position:relative;z-index:2}
  .nav__links{
    position:fixed;inset:0;z-index:1;background:var(--ink);color:var(--paper);
    flex-direction:column;justify-content:center;align-items:center;gap:34px;
    font-size:1.6rem;mix-blend-mode:normal;
    transform:translateY(-100%);transition:transform .5s var(--ease);
  }
  .nav__links.is-open{transform:none}
  .nav__burger{display:flex}
  .nav.menu-open{mix-blend-mode:normal;color:var(--paper)}
  .grid{grid-template-columns:1fr}
  .tile--tall .tile__media{aspect-ratio:4/3}
}

@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .marquee__track{animation:none}
  html{scroll-behavior:auto}
}