/* =========================================================
   NEW ASSASSIN TATTOO — Heng Yue
   Design system: dark editorial × engineered / blueprint × eastern vermillion
   ========================================================= */

/* ---------- Tokens ---------- */
:root{
  --bg:        #0a0a0b;
  --bg-elev:   #111113;
  --bg-elev-2: #16161a;
  --line:      #26262b;
  --line-soft: #1b1b1f;
  --ink:       #ecebe7;
  --ink-dim:   #a3a29c;
  --ink-faint: #6b6a65;
  --accent:    #c8302f;   /* vermillion / eastern red */
  --accent-2:  #e04b3a;
  --bone:      #d9d3c7;

  --ff-display: "Anton", "Oswald", Impact, sans-serif;
  --ff-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --ff-mono:    "Space Mono", "SFMono-Regular", ui-monospace, monospace;

  --maxw: 1320px;
  --gutter: clamp(20px, 5vw, 64px);
  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- Reset ---------- */
*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--ff-body);
  font-size:16px;
  line-height:1.6;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{ display:block; max-width:100%; height:auto; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; border:0; background:none; color:inherit; }
ul{ list-style:none; }

/* selection */
::selection{ background:var(--accent); color:#fff; }

/* ---------- Layout helpers ---------- */
.wrap{ width:100%; max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gutter); }
.section{ padding-block:clamp(72px, 12vh, 160px); position:relative; }
.divider{ height:1px; background:var(--line-soft); border:0; }

/* section eyebrow label — mono, numbered, engineered */
.eyebrow{
  font-family:var(--ff-mono);
  font-size:12px;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--accent);
  display:inline-flex;
  align-items:center;
  gap:12px;
  margin-bottom:26px;
}
.eyebrow::before{
  content:"";
  width:34px; height:1px; background:var(--accent);
  display:inline-block;
}
.eyebrow .num{ color:var(--ink-faint); }

/* headings */
.h-display{
  font-family:var(--ff-display);
  font-weight:400;
  line-height:.94;
  letter-spacing:.005em;
  text-transform:uppercase;
}
h2.title{
  font-family:var(--ff-display);
  font-weight:400;
  font-size:clamp(2.2rem, 6vw, 4.6rem);
  line-height:.96;
  text-transform:uppercase;
  letter-spacing:.01em;
}
.lead{
  font-size:clamp(1.05rem,1.6vw,1.3rem);
  color:var(--ink-dim);
  max-width:60ch;
  line-height:1.65;
}
.accent{ color:var(--accent); }
.bone{ color:var(--bone); }

/* ---------- Blueprint grid background accent ---------- */
.grid-bg{
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size:80px 80px;
  opacity:.35;
  -webkit-mask-image:radial-gradient(ellipse at center, #000 20%, transparent 75%);
          mask-image:radial-gradient(ellipse at center, #000 20%, transparent 75%);
  pointer-events:none;
  z-index:0;
}

/* ---------- Header / Nav ---------- */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  transition:background .4s var(--ease), border-color .4s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(10,10,11,.82);
  backdrop-filter:blur(14px) saturate(1.2);
  -webkit-backdrop-filter:blur(14px) saturate(1.2);
  border-bottom-color:var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  height:78px;
}
.brand{ display:flex; align-items:center; gap:14px; }
.brand img{ width:38px; height:38px; object-fit:contain; }
.brand .brand-txt{ line-height:1; }
.brand .brand-name{
  font-family:var(--ff-display); font-size:18px; letter-spacing:.06em; text-transform:uppercase;
}
.brand .brand-sub{
  font-family:var(--ff-mono); font-size:9px; letter-spacing:.32em; color:var(--ink-faint); text-transform:uppercase;
}
.nav-links{ display:flex; align-items:center; gap:38px; }
.nav-links a{
  font-family:var(--ff-mono); font-size:12.5px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--ink-dim); position:relative; padding-block:6px; transition:color .3s var(--ease);
}
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:0; width:0; height:1px; background:var(--accent);
  transition:width .35s var(--ease);
}
.nav-links a:hover, .nav-links a.active{ color:var(--ink); }
.nav-links a:hover::after, .nav-links a.active::after{ width:100%; }
.nav-cta{
  font-family:var(--ff-mono); font-size:12px; letter-spacing:.14em; text-transform:uppercase;
  border:1px solid var(--line); padding:12px 20px; color:var(--ink);
  transition:border-color .3s var(--ease), background .3s var(--ease), color .3s;
}
.nav-cta:hover{ background:var(--accent); border-color:var(--accent); color:#fff; }

/* burger */
.burger{ display:none; width:44px; height:44px; position:relative; }
.burger span{ position:absolute; left:10px; right:10px; height:1.5px; background:var(--ink); transition:.3s var(--ease); }
.burger span:nth-child(1){ top:16px; }
.burger span:nth-child(2){ top:22px; }
.burger span:nth-child(3){ top:28px; }
body.menu-open .burger span:nth-child(1){ top:22px; transform:rotate(45deg); }
body.menu-open .burger span:nth-child(2){ opacity:0; }
body.menu-open .burger span:nth-child(3){ top:22px; transform:rotate(-45deg); }

/* mobile menu overlay */
.mobile-menu{
  position:fixed; inset:0; z-index:99; background:var(--bg);
  display:flex; flex-direction:column; justify-content:center; padding:var(--gutter);
  transform:translateY(-100%); transition:transform .5s var(--ease); visibility:hidden;
}
body.menu-open .mobile-menu{ transform:translateY(0); visibility:visible; }
.mobile-menu a{
  font-family:var(--ff-display); font-size:clamp(2.2rem,10vw,3.6rem); text-transform:uppercase;
  padding-block:10px; border-bottom:1px solid var(--line-soft); color:var(--ink);
  display:flex; align-items:baseline; gap:16px;
}
.mobile-menu a .mnum{ font-family:var(--ff-mono); font-size:13px; color:var(--accent); }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:12px;
  font-family:var(--ff-mono); font-size:13px; letter-spacing:.14em; text-transform:uppercase;
  padding:16px 28px; border:1px solid var(--ink); color:var(--ink);
  transition:.35s var(--ease); position:relative; overflow:hidden;
}
.btn .arrow{ transition:transform .35s var(--ease); }
.btn:hover .arrow{ transform:translateX(5px); }
.btn-solid{ background:var(--accent); border-color:var(--accent); color:#fff; }
.btn-solid:hover{ background:var(--accent-2); border-color:var(--accent-2); }
.btn-ghost:hover{ background:var(--ink); color:var(--bg); }

/* ---------- HERO ---------- */
.hero{
  min-height:100svh; position:relative; display:flex; align-items:flex-end;
  padding-bottom:clamp(48px,8vh,90px); overflow:hidden;
}
.hero-media{ position:absolute; inset:0; z-index:0; }
.hero-media img{
  width:100%; height:100%; object-fit:cover; object-position:center 30%;
  filter:grayscale(.35) contrast(1.05) brightness(.5);
}
.hero-media::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(10,10,11,.55) 0%, rgba(10,10,11,.2) 40%, rgba(10,10,11,.95) 100%);
}
.hero-inner{ position:relative; z-index:2; width:100%; }
.hero h1{
  font-family:var(--ff-display); font-weight:400; text-transform:uppercase;
  font-size:clamp(2.8rem, 9.5vw, 8.4rem); line-height:.9; letter-spacing:.005em;
  max-width:16ch;
}
.hero h1 em{ font-style:normal; color:var(--accent); }
.hero-tag{
  font-family:var(--ff-mono); font-size:clamp(12px,1.4vw,15px); letter-spacing:.22em; text-transform:uppercase;
  color:var(--bone); margin-bottom:28px; display:flex; gap:14px; align-items:center; flex-wrap:wrap;
}
.hero-tag .dot{ width:6px; height:6px; background:var(--accent); border-radius:50%; }
.hero-actions{ display:flex; gap:16px; margin-top:40px; flex-wrap:wrap; }
.hero-meta{
  position:absolute; top:120px; right:var(--gutter); z-index:2;
  font-family:var(--ff-mono); font-size:11px; letter-spacing:.2em; text-transform:uppercase;
  color:var(--ink-dim); text-align:right; line-height:2;
}
.hero-meta span{ color:var(--accent); }
/* vertical scroll cue */
.scroll-cue{
  position:absolute; bottom:34px; left:50%; transform:translateX(-50%); z-index:2;
  font-family:var(--ff-mono); font-size:10px; letter-spacing:.3em; text-transform:uppercase; color:var(--ink-faint);
  display:flex; flex-direction:column; align-items:center; gap:10px;
}
.scroll-cue .bar{ width:1px; height:44px; background:linear-gradient(var(--accent),transparent); }

/* ---------- Marquee ---------- */
.marquee{
  border-block:1px solid var(--line); padding-block:22px; overflow:hidden; white-space:nowrap;
  background:var(--bg-elev);
}
.marquee-track{ display:inline-flex; gap:60px; animation:marq 28s linear infinite; }
.marquee span{
  font-family:var(--ff-display); font-size:clamp(1.4rem,3vw,2.4rem); text-transform:uppercase;
  color:var(--ink); letter-spacing:.03em; display:inline-flex; gap:60px; align-items:center;
}
.marquee span::after{ content:"✦"; color:var(--accent); font-size:.7em; }
@keyframes marq{ to{ transform:translateX(-50%); } }

/* ---------- Philosophy / statement ---------- */
.statement{ position:relative; }
.statement .big-quote{
  font-family:var(--ff-display); text-transform:uppercase; font-weight:400;
  font-size:clamp(1.8rem,5vw,3.8rem); line-height:1.02; letter-spacing:.005em; max-width:20ch;
}
.statement .big-quote .accent{ display:inline; }
.two-col{ display:grid; grid-template-columns:1.2fr .8fr; gap:clamp(30px,6vw,90px); align-items:start; }
.quote-cite{ font-family:var(--ff-mono); font-size:12px; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-faint); margin-top:36px; }

/* ---------- Feature grid (specialties) ---------- */
.spec-head{ display:flex; justify-content:space-between; align-items:flex-end; flex-wrap:wrap; gap:24px; margin-bottom:56px; }
.specs{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.spec{
  background:var(--bg); padding:44px 34px 40px; position:relative; transition:background .4s var(--ease);
  min-height:300px; display:flex; flex-direction:column;
}
.spec:hover{ background:var(--bg-elev-2); }
.spec .spec-num{ font-family:var(--ff-mono); font-size:12px; color:var(--accent); letter-spacing:.2em; }
.spec h3{ font-family:var(--ff-display); font-size:clamp(1.6rem,2.6vw,2.4rem); text-transform:uppercase; margin-top:auto; line-height:1; }
.spec p{ color:var(--ink-dim); font-size:.95rem; margin-top:16px; }
.spec .spec-jp{ position:absolute; top:30px; right:30px; font-size:26px; color:var(--line); font-family:var(--ff-display); }

/* ---------- Works / gallery ---------- */
.works-grid{ display:grid; grid-template-columns:repeat(12,1fr); gap:clamp(10px,1.4vw,20px); }
.work{
  position:relative; overflow:hidden; background:var(--bg-elev); cursor:pointer;
}
.work img{
  width:100%; height:100%; object-fit:cover; transition:transform .8s var(--ease), filter .6s var(--ease);
  filter:grayscale(.25);
}
.work:hover img{ transform:scale(1.05); filter:grayscale(0); }
.work::after{
  content:""; position:absolute; inset:0; border:1px solid transparent; transition:border-color .4s; pointer-events:none;
}
.work:hover::after{ border-color:var(--accent); }
.work .work-cap{
  position:absolute; left:0; bottom:0; right:0; padding:16px 18px;
  background:linear-gradient(transparent, rgba(10,10,11,.9));
  font-family:var(--ff-mono); font-size:11px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--ink-dim); opacity:0; transform:translateY(8px); transition:.4s var(--ease);
}
.work:hover .work-cap{ opacity:1; transform:translateY(0); }
.work .work-cap b{ color:var(--accent); }
/* span helpers */
.c-4{ grid-column:span 4; } .c-6{ grid-column:span 6; } .c-8{ grid-column:span 8; } .c-12{ grid-column:span 12; }
.r-tall{ aspect-ratio:3/4; } .r-sq{ aspect-ratio:1/1; } .r-wide{ aspect-ratio:16/10; } .r-port{ aspect-ratio:4/5; }

/* full projects masonry */
.masonry{ columns:3; column-gap:clamp(12px,1.6vw,22px); }
.masonry .work{ margin-bottom:clamp(12px,1.6vw,22px); break-inside:avoid; display:block; }
.masonry .work img{ height:auto; }

/* ---------- Split feature (masterclass teaser / about) ---------- */
.split{ display:grid; grid-template-columns:1fr 1fr; gap:0; align-items:stretch; }
.split-media{ position:relative; overflow:hidden; min-height:460px; }
.split-media img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; filter:grayscale(.3) brightness(.85); }
.split-body{ padding:clamp(40px,6vw,88px); display:flex; flex-direction:column; justify-content:center; background:var(--bg-elev); }
.split-body .price{ font-family:var(--ff-display); font-size:clamp(2rem,4vw,3.2rem); color:var(--ink); line-height:1; }
.split-body .price small{ font-family:var(--ff-mono); font-size:13px; color:var(--ink-faint); letter-spacing:.1em; }
.feature-list{ margin:32px 0; }
.feature-list li{ padding:16px 0; border-top:1px solid var(--line); display:flex; gap:16px; align-items:flex-start; color:var(--ink-dim); font-size:.96rem; }
.feature-list li::before{ content:"→"; color:var(--accent); flex:none; }
.feature-list li:last-child{ border-bottom:1px solid var(--line); }

/* ---------- Stats ---------- */
.stats{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border-block:1px solid var(--line); }
.stat{ background:var(--bg); padding:44px 28px; text-align:center; }
.stat .num{ font-family:var(--ff-display); font-size:clamp(2.4rem,5vw,4rem); line-height:1; color:var(--ink); }
.stat .num .accent{ color:var(--accent); }
.stat .lbl{ font-family:var(--ff-mono); font-size:11px; letter-spacing:.2em; text-transform:uppercase; color:var(--ink-faint); margin-top:14px; }

/* ---------- CTA band ---------- */
.cta-band{ text-align:center; position:relative; overflow:hidden; }
.cta-band h2{ font-family:var(--ff-display); font-size:clamp(2.4rem,8vw,6.5rem); text-transform:uppercase; line-height:.92; }
.cta-band .lead{ margin:24px auto 40px; text-align:center; }

/* ---------- Forms ---------- */
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:22px 26px; }
.field{ display:flex; flex-direction:column; gap:8px; }
.field.full{ grid-column:1/-1; }
.field label{ font-family:var(--ff-mono); font-size:11px; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-faint); }
.field input, .field textarea, .field select{
  background:var(--bg-elev); border:1px solid var(--line); color:var(--ink);
  padding:15px 16px; font-family:var(--ff-body); font-size:.98rem; transition:border-color .3s;
}
.field input:focus, .field textarea:focus, .field select:focus{ outline:none; border-color:var(--accent); }
.field textarea{ resize:vertical; min-height:130px; }
.field input::placeholder, .field textarea::placeholder{ color:var(--ink-faint); }
.form-note{ font-family:var(--ff-mono); font-size:11px; color:var(--ink-faint); letter-spacing:.08em; margin-top:6px; }
.form-msg{ font-family:var(--ff-mono); font-size:13px; letter-spacing:.1em; padding:14px 16px; border:1px solid var(--accent); color:var(--bone); margin-top:20px; display:none; }
.form-msg.show{ display:block; }

/* checkbox */
.checkrow{ display:flex; gap:12px; align-items:flex-start; grid-column:1/-1; color:var(--ink-dim); font-size:.9rem; }
.checkrow input{ width:18px; height:18px; accent-color:var(--accent); margin-top:2px; }

/* contact info list */
.info-list li{ padding:22px 0; border-top:1px solid var(--line); }
.info-list li:last-child{ border-bottom:1px solid var(--line); }
.info-list .k{ font-family:var(--ff-mono); font-size:11px; letter-spacing:.2em; text-transform:uppercase; color:var(--ink-faint); }
.info-list .v{ font-size:1.05rem; margin-top:6px; color:var(--ink); }
.info-list a.v:hover{ color:var(--accent); }

/* ---------- About page bits ---------- */
.about-hero-img{ aspect-ratio:4/5; overflow:hidden; }
.about-hero-img img{ width:100%; height:100%; object-fit:cover; filter:grayscale(.2); }
.prose p{ color:var(--ink-dim); font-size:1.05rem; line-height:1.8; margin-bottom:22px; max-width:66ch; }
.prose p .accent{ color:var(--accent); }
.pull{ font-family:var(--ff-display); font-size:clamp(1.5rem,3.4vw,2.6rem); text-transform:uppercase; line-height:1.05; color:var(--ink); margin:14px 0 40px; }

/* ---------- Footer ---------- */
.site-footer{ border-top:1px solid var(--line); padding-block:70px 40px; background:var(--bg); position:relative; }
.footer-top{ display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:40px; margin-bottom:60px; }
.footer-brand .brand-name{ font-family:var(--ff-display); font-size:clamp(2rem,4vw,3rem); text-transform:uppercase; line-height:1; }
.footer-brand p{ color:var(--ink-dim); margin-top:18px; max-width:40ch; font-size:.95rem; }
.footer-col h4{ font-family:var(--ff-mono); font-size:11px; letter-spacing:.2em; text-transform:uppercase; color:var(--ink-faint); margin-bottom:20px; }
.footer-col a{ display:block; color:var(--ink-dim); padding:7px 0; font-size:.95rem; transition:color .3s; }
.footer-col a:hover{ color:var(--accent); }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:30px; border-top:1px solid var(--line-soft); flex-wrap:wrap; gap:16px; }
.footer-bottom, .footer-bottom a{ font-family:var(--ff-mono); font-size:11px; letter-spacing:.12em; text-transform:uppercase; color:var(--ink-faint); }
.footer-bottom a:hover{ color:var(--ink); }

/* ---------- Lightbox ---------- */
.lightbox{ position:fixed; inset:0; z-index:200; background:rgba(6,6,7,.96); display:none; align-items:center; justify-content:center; padding:40px; }
.lightbox.open{ display:flex; }
.lightbox img{ max-width:90vw; max-height:86vh; object-fit:contain; box-shadow:0 30px 80px rgba(0,0,0,.6); }
.lightbox .lb-close{ position:absolute; top:24px; right:30px; font-family:var(--ff-mono); font-size:13px; letter-spacing:.2em; color:var(--ink); text-transform:uppercase; }
.lightbox .lb-nav{ position:absolute; top:50%; transform:translateY(-50%); font-size:40px; color:var(--ink-dim); padding:20px; transition:color .3s; }
.lightbox .lb-nav:hover{ color:var(--accent); }
.lightbox .lb-prev{ left:10px; } .lightbox .lb-next{ right:10px; }
.lightbox .lb-count{ position:absolute; bottom:26px; left:50%; transform:translateX(-50%); font-family:var(--ff-mono); font-size:12px; letter-spacing:.2em; color:var(--ink-faint); }

/* ---------- Page hero (inner pages) ---------- */
.page-hero{ padding-top:170px; padding-bottom:70px; position:relative; }
.page-hero h1{ font-family:var(--ff-display); font-size:clamp(3rem,11vw,8rem); text-transform:uppercase; line-height:.9; }
.page-hero .crumb{ font-family:var(--ff-mono); font-size:12px; letter-spacing:.2em; text-transform:uppercase; color:var(--ink-faint); margin-bottom:24px; }
.page-hero .crumb .accent{ color:var(--accent); }

/* ---------- Reveal animation ---------- */
.reveal{ opacity:0; transform:translateY(28px); transition:opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in{ opacity:1; transform:none; }
.reveal.d1{ transition-delay:.08s; } .reveal.d2{ transition-delay:.16s; } .reveal.d3{ transition-delay:.24s; } .reveal.d4{ transition-delay:.32s; }

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .two-col{ grid-template-columns:1fr; }
  .footer-top{ grid-template-columns:1fr 1fr; }
  .masonry{ columns:2; }
}
@media (max-width:860px){
  .nav-links, .nav-cta{ display:none; }
  .burger{ display:block; }
  .specs{ grid-template-columns:1fr; }
  .split{ grid-template-columns:1fr; }
  .split-media{ min-height:340px; }
  .stats{ grid-template-columns:1fr 1fr; }
  .form-grid{ grid-template-columns:1fr; }
  .hero-meta{ display:none; }
  .works-grid .c-4,.works-grid .c-6,.works-grid .c-8{ grid-column:span 6; }
}
@media (max-width:560px){
  .footer-top{ grid-template-columns:1fr; }
  .masonry{ columns:1; }
  .stats{ grid-template-columns:1fr 1fr; }
  .works-grid .c-4,.works-grid .c-6,.works-grid .c-8,.works-grid .c-12{ grid-column:span 12; }
}
@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; transition:none !important; }
  .reveal{ opacity:1; transform:none; }
}