/* ─────────────────────────────────────────────────────────────
   Portfolio v4 — themeable design system.
   All color flows from a handful of CSS variables; presets swap
   them wholesale, and the owner's custom colors (from the site
   editor) override via inline style on <html>. Derived shades
   use color-mix so one text/background choice restyles the site.
   ───────────────────────────────────────────────────────────── */
:root{
  --bg:#000; --panel:#101013; --panel2:#16161a;
  --ink:#f5f4f0; --accent:#E8A33D; --on-accent:#171310;
  --g1:#F6C670; --g2:#F0855A; --g3:#C86DD7;
  --paper:#F5F2EC; --paper-ink:#17140F;
  --card-blur:0px; --card-border:color-mix(in srgb, var(--ink) 13%, transparent);
  --dim:  color-mix(in srgb, var(--ink) 66%, var(--bg));
  --faint:color-mix(in srgb, var(--ink) 42%, var(--bg));
  --hair: color-mix(in srgb, var(--ink) 13%, transparent);
  --paper-dim: color-mix(in srgb, var(--paper-ink) 62%, var(--paper));
  --r-tile:22px; --r-pill:980px;
  --disp:"Sora",sans-serif; --body:"Inter",sans-serif;
  --ease:cubic-bezier(.16,1,.3,1);
}

/* ── THEME PRESETS ─────────────────────────────────────────── */
body[data-theme="glass"]{
  --bg:#0A0E1A; --panel:rgba(255,255,255,.06); --panel2:rgba(255,255,255,.10);
  --ink:#F2F6FF; --accent:#7DD3FC; --on-accent:#06121F;
  --g1:#7DD3FC; --g2:#A78BFA; --g3:#F0ABFC;
  --paper:rgba(255,255,255,.07); --paper-ink:#F2F6FF;
  --card-blur:22px; --card-border:rgba(255,255,255,.16);
}
body[data-theme="military"]{
  --bg:#191E17; --panel:#20261D; --panel2:#272E23;
  --ink:#E7E2D0; --accent:#C9A86A; --on-accent:#1B1A12;
  --g1:#C9A86A; --g2:#9AA86B; --g3:#6E8B5E;
  --paper:#E5DCC3; --paper-ink:#23241A;
}
body[data-theme="paper"]{
  --bg:#F6F3EC; --panel:#FFFFFF; --panel2:#F1EDE3;
  --ink:#1A170F; --accent:#B0761E; --on-accent:#FFF9EE;
  --g1:#B0761E; --g2:#C2452F; --g3:#7C4DB8;
  --paper:#17140F; --paper-ink:#F5F2EC;
  --card-border:color-mix(in srgb, var(--ink) 14%, transparent);
}
body[data-theme="ocean"]{
  --bg:#081120; --panel:#0E1B30; --panel2:#13233D;
  --ink:#E9F1FA; --accent:#6FB9E8; --on-accent:#06131F;
  --g1:#6FB9E8; --g2:#4C86C6; --g3:#8AD3C6;
  --paper:#EAF0F5; --paper-ink:#101A26;
}
body[data-theme="violet"]{
  --bg:#0D0916; --panel:#161022; --panel2:#1D152C;
  --ink:#F1ECFA; --accent:#B79CFF; --on-accent:#160E28;
  --g1:#B79CFF; --g2:#7C5CFF; --g3:#FF8AD8;
  --paper:#F1ECFA; --paper-ink:#181026;
}

/* liquid-glass aurora backdrop */
body[data-theme="glass"]::before{
  content:"";position:fixed;inset:-25%;z-index:-1;pointer-events:none;
  background:
    radial-gradient(38% 38% at 22% 28%, rgba(125,211,252,.28), transparent 62%),
    radial-gradient(32% 32% at 78% 18%, rgba(167,139,250,.25), transparent 62%),
    radial-gradient(42% 42% at 62% 84%, rgba(240,171,252,.18), transparent 62%);
  filter:blur(58px);
  animation:aurora 20s ease-in-out infinite alternate;
}
@keyframes aurora{to{transform:translate(-4%,3%) rotate(3deg) scale(1.1)}}
body[data-theme="military"]::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(120% 90% at 50% 0%, rgba(201,168,106,.07), transparent 55%);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{background:var(--bg);color:var(--ink);font-family:var(--body);
  font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden;
  transition:background .4s ease}
::selection{background:var(--accent);color:var(--on-accent)}
a{color:var(--accent);text-decoration:none}
img,video{display:block;max-width:100%}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

/* ── nav ── */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;
  background:color-mix(in srgb, var(--bg) 74%, transparent);
  backdrop-filter:saturate(1.6) blur(20px);-webkit-backdrop-filter:saturate(1.6) blur(20px);
  border-bottom:1px solid var(--hair)}
.nav-inner{max-width:1040px;margin:0 auto;height:50px;padding:0 22px;
  display:flex;align-items:center;gap:26px}
.nav-brand{color:var(--ink);font-family:var(--disp);font-size:14.5px;font-weight:600;letter-spacing:-.01em}
.nav-links{display:flex;gap:24px;margin-left:auto}
.nav-links a{color:var(--dim);font-size:13px;transition:color .25s}
.nav-links a:hover{color:var(--ink)}
@media(max-width:760px){.nav-links{display:none}.nav-inner{justify-content:space-between}}

/* ── pills & links ── */
.pill{display:inline-block;background:var(--accent);color:var(--on-accent);font-size:16.5px;
  font-weight:600;padding:12px 26px;border-radius:var(--r-pill);
  transition:filter .25s,transform .25s var(--ease)}
.pill:hover{filter:brightness(1.12);transform:scale(1.02)}
.pill-sm{font-size:13px;padding:7px 16px;margin-left:8px}
.tlink{font-size:17px;color:var(--accent);display:inline-flex;align-items:center;gap:4px;font-weight:500}
.tlink span{transition:transform .25s var(--ease)}
.tlink:hover span{transform:translateX(3px)}

/* ── hero ── */
.hero{min-height:92vh;display:flex;flex-direction:column;justify-content:center;
  align-items:center;text-align:center;padding:130px 22px 60px}
.kicker{font-size:15px;font-weight:600;color:var(--dim);margin-bottom:14px}
.kicker.accent{color:var(--accent)}
.hero h1{font-family:var(--disp);font-size:clamp(44px,8.4vw,92px);font-weight:800;
  letter-spacing:-.035em;line-height:1.02}
.hero h1 .dot{color:var(--accent)}
.hero-sub{font-family:var(--disp);font-size:clamp(28px,5vw,52px);font-weight:700;
  letter-spacing:-.03em;margin-top:8px}
.grad{background:linear-gradient(94deg,var(--g1) 0%,var(--g2) 45%,var(--g3) 90%,var(--g1) 130%);
  background-size:220% 100%;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:shimmer 7s ease-in-out infinite alternate}
@keyframes shimmer{to{background-position:90% 0}}
.hero-copy{margin-top:26px;font-size:clamp(17px,2vw,20px);color:var(--dim);line-height:1.55;max-width:62ch}
.cta{display:flex;align-items:center;gap:26px;margin-top:34px;flex-wrap:wrap;justify-content:center}
.cta.center{justify-content:center}

/* ── highlights strip ── */
.strip{border-top:1px solid var(--hair);border-bottom:1px solid var(--hair)}
.strip-inner{max-width:1040px;margin:0 auto;padding:34px 22px;
  display:grid;grid-template-columns:repeat(var(--cols,4),1fr);gap:20px;text-align:center}
.strip b{display:block;font-family:var(--disp);font-size:clamp(21px,2.5vw,29px);
  font-weight:700;letter-spacing:-.02em}
.strip span{display:block;margin-top:4px;font-size:12.5px;color:var(--faint)}
@media(max-width:760px){.strip-inner{grid-template-columns:repeat(2,1fr);gap:26px 12px}}

/* ── feature sections ── */
.feature{max-width:1040px;margin:0 auto;padding:120px 22px 46px;text-align:center}
.feature.align-left{text-align:left}
.display{font-family:var(--disp);font-size:clamp(36px,5.8vw,64px);font-weight:800;
  letter-spacing:-.035em;line-height:1.04}
.display .sub{display:block;color:var(--faint);font-size:clamp(22px,3.4vw,38px);
  letter-spacing:-.025em;margin-top:8px;font-weight:700}
.display.dark{color:var(--paper-ink)}
.lede{max-width:660px;margin:24px auto 0;font-size:clamp(17px,2vw,20px);color:var(--dim)}
.align-left .lede{margin-left:0}
.lede.center{text-align:center}
.rich p{margin:0 0 .6em}
.rich p:last-child{margin-bottom:0}
.rich ul,.rich ol{margin:.4em 0 .6em 1.3em;text-align:left}

/* clean points — no boxes, no square markers */
.points{max-width:640px;margin:30px auto 0;text-align:left}
.align-left .points{margin-left:0}
.points p{padding:13px 2px;color:var(--dim);font-size:15.5px;line-height:1.6;
  border-bottom:1px solid var(--hair)}
.points p:first-child{border-top:1px solid var(--hair)}

/* ── text ⇢ gallery divider ── */
.tdiv{display:flex;align-items:center;gap:16px;max-width:560px;margin:52px auto 44px}
.tdiv::before,.tdiv::after{content:"";flex:1;height:1px;background:var(--accent);
  opacity:.55;transform:scaleX(0);transition:transform 1s var(--ease) .15s}
.tdiv::before{transform-origin:right}
.tdiv::after{transform-origin:left}
.tdiv span{color:var(--accent);font-size:12px;transform:rotate(45deg) scale(0);
  transition:transform .7s var(--ease) .5s}
.tdiv.in::before,.tdiv.in::after{transform:scaleX(1)}
.tdiv.in span{transform:rotate(0) scale(1)}

/* ── gallery ── */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
  grid-auto-flow:dense;text-align:left}
.g-item{position:relative;border-radius:var(--r-tile);overflow:hidden;
  background:var(--panel);border:1px solid var(--card-border);
  backdrop-filter:blur(var(--card-blur));-webkit-backdrop-filter:blur(var(--card-blur));
  transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.g-item:hover{transform:translateY(-4px);
  box-shadow:0 18px 44px color-mix(in srgb, var(--bg) 30%, transparent),
             0 0 0 1px color-mix(in srgb, var(--accent) 35%, transparent)}
.w2{grid-column:span 2}
.g-photo img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;cursor:zoom-in;
  transition:transform .7s var(--ease)}
.g-photo:hover img{transform:scale(1.045)}
.g-photo figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 16px 12px;
  font-size:13px;font-weight:600;color:#fff;pointer-events:none;
  background:linear-gradient(transparent, rgba(0,0,0,.66));
  opacity:0;transition:opacity .4s}
.g-photo:hover figcaption{opacity:1}
.g-item video{width:100%;aspect-ratio:16/9;background:#000}
.g-model .stl-stage,.g-model model-viewer{width:100%;aspect-ratio:16/10;min-height:300px;
  position:relative;background:color-mix(in srgb, var(--bg) 60%, #000);touch-action:none;display:block}
.stl-stage canvas{display:block;width:100%;height:100%}
.stl-hint{position:absolute;left:14px;bottom:12px;font-size:11px;letter-spacing:.04em;
  color:var(--faint);pointer-events:none;z-index:2}
figcaption.bar{padding:12px 16px;border-top:1px solid var(--hair);
  font-size:13px;color:var(--dim)}
.g-file{display:flex;align-items:center;gap:14px;padding:20px 22px}
.f-ic{font-size:20px;color:var(--accent)}
.f-name{font-size:15px;color:var(--ink);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.f-ext{font-size:11px;letter-spacing:.08em;color:var(--faint);
  border:1px solid var(--hair);padding:4px 9px;border-radius:8px}
@media(max-width:880px){.gallery{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.gallery{grid-template-columns:1fr}.w2{grid-column:span 1}
  .feature{padding:92px 18px 26px}}

.tags{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;margin-top:34px}
.align-left .tags{justify-content:flex-start}
.tags span{font-size:12px;font-weight:500;color:var(--dim);
  border:1px solid var(--hair);padding:7px 14px;border-radius:var(--r-pill)}

/* ── light break section ── */
.light{background:var(--paper);margin-top:120px;
  backdrop-filter:blur(var(--card-blur));-webkit-backdrop-filter:blur(var(--card-blur))}
body[data-theme="glass"] .light{border-top:1px solid var(--card-border);
  border-bottom:1px solid var(--card-border)}
.light-inner{max-width:1040px;margin:0 auto;padding:110px 22px;text-align:center}
.skills{display:grid;grid-template-columns:repeat(3,1fr);gap:40px 36px;margin-top:60px;text-align:left}
.skills b{display:block;color:var(--paper-ink);font-family:var(--disp);
  font-size:16.5px;font-weight:700;letter-spacing:-.01em}
.skills span{display:block;margin-top:6px;font-size:15px;color:var(--paper-dim);line-height:1.5}
@media(max-width:820px){.skills{grid-template-columns:1fr 1fr}}
@media(max-width:540px){.skills{grid-template-columns:1fr}}

/* ── contact ── */
.contact{max-width:1040px;margin:0 auto;padding:150px 22px 140px;text-align:center}
.mail{display:inline-block;margin-top:30px;font-family:var(--disp);
  font-size:clamp(19px,3vw,28px);font-weight:600;letter-spacing:-.015em;color:var(--ink)}
.mail:hover{color:var(--accent)}
.contact .cta{margin-top:36px}

footer{border-top:1px solid var(--hair)}
.foot-inner{max-width:1040px;margin:0 auto;padding:26px 22px 40px}
footer p{font-size:12px;color:var(--faint)}

/* ── lightbox ── */
#lb{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;
  background:rgba(0,0,0,.88);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
#lb.open{display:flex}
#lb figure{max-width:min(1200px,92vw);max-height:88vh;display:flex;flex-direction:column;
  animation:lbIn .35s var(--ease)}
@keyframes lbIn{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:none}}
#lb img{max-width:100%;max-height:80vh;object-fit:contain;border-radius:14px}
#lb figcaption{text-align:center;color:#d5d5d5;font-size:14px;padding:14px 8px 0}
.lb-x{position:fixed;top:18px;right:22px;font-size:20px;background:rgba(255,255,255,.1);
  color:#fff;border:none;border-radius:50%;width:44px;height:44px;cursor:pointer;
  transition:background .25s}
.lb-x:hover{background:rgba(255,255,255,.22)}
.lb-nav{position:fixed;top:50%;transform:translateY(-50%);font-size:34px;line-height:1;
  background:rgba(255,255,255,.08);color:#fff;border:none;border-radius:50%;
  width:52px;height:52px;cursor:pointer;transition:background .25s}
.lb-nav:hover{background:rgba(255,255,255,.2)}
.lb-prev{left:18px}.lb-next{right:18px}
@media(max-width:640px){.lb-nav{width:42px;height:42px;font-size:26px}}

/* ── reveal ── */
.rv{opacity:0;transform:translateY(22px);
  transition:opacity .9s var(--ease),transform .9s var(--ease)}
.rv.in{opacity:1;transform:none}
.d0{transition-delay:0s}.d1{transition-delay:.08s}.d2{transition-delay:.16s}
.d3{transition-delay:.24s}.d4{transition-delay:.32s}
@media(prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  .grad{animation:none}
  body[data-theme="glass"]::before{animation:none}
  .tdiv::before,.tdiv::after,.tdiv span{transform:none;transition:none}
}
