/* =================================================================
   marco.detering.online — "Quant Atelier"
   editorial luxury × trading terminal. dark, bone, molten amber.
   ================================================================= */

/* ---- view transitions (cross-document, progressive) ---- */
@view-transition { navigation: auto; }

/* ---- tokens ---- */
:root {
  --ink:        #0a0a0b;
  --ink-rise:   #0f0f12;
  --ink-panel:  #131318;
  --bone:       #ece6d9;
  --bone-soft:  #c7c2b8;
  --bone-dim:   #8c887f;
  --bone-faint: #565248;
  --accent:     #ff6a3d;          /* molten */
  --accent-lo:  rgba(255,106,61,.12);
  --accent-hi:  #ff8c5e;
  --live:       #6ee7a8;          /* status dots only */
  --line:       rgba(236,230,217,.10);
  --line-2:     rgba(236,230,217,.18);

  --serif: "Fraunces", "Times New Roman", serif;
  --sans:  "Hanken Grotesk", ui-sans-serif, system-ui, sans-serif;
  --mono:  "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;

  --pad: clamp(1.25rem, 4vw, 4rem);
  --maxw: 78rem;
  --ease: cubic-bezier(.22,.61,.36,1);
  --ease-out: cubic-bezier(.16,1,.3,1);
}

/* ---- reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--ink);
  color: var(--bone);
  font-family: var(--sans);
  font-size: clamp(1rem, .55vw + .9rem, 1.125rem);
  line-height: 1.6;
  font-weight: 380;
  letter-spacing: .005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  cursor: none;
}
@media (pointer: coarse) { body { cursor: auto; } }

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--accent); color: var(--ink); }

/* ---- atmosphere: grain + vignette + ledger grid ---- */
body::before {  /* grain */
  content: ""; position: fixed; inset: 0; z-index: 1; pointer-events: none;
  opacity: .045; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
body::after {  /* vignette */
  content: ""; position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(120% 90% at 50% -10%, transparent 55%, rgba(0,0,0,.55) 100%);
}

/* ---- custom cursor ---- */
.cursor-dot, .cursor-ring {
  position: fixed; top: 0; left: 0; z-index: 9999; pointer-events: none;
  border-radius: 50%; transform: translate(-50%, -50%);
  mix-blend-mode: difference;
}
.cursor-dot  { width: 6px; height: 6px; background: var(--bone); }
.cursor-ring {
  width: 34px; height: 34px; border: 1px solid rgba(236,230,217,.5);
  transition: width .25s var(--ease), height .25s var(--ease),
              border-color .25s var(--ease), background .25s var(--ease);
}
.cursor-ring.is-hover { width: 58px; height: 58px; border-color: var(--accent); background: var(--accent-lo); }
@media (pointer: coarse) { .cursor-dot, .cursor-ring { display: none; } }

/* ---- layout ---- */
.wrap { width: min(100% - 2*var(--pad), var(--maxw)); margin-inline: auto; position: relative; z-index: 2; }
.bleed { width: 100%; }
section { position: relative; z-index: 2; }

/* ---- header ---- */
.site-head {
  position: fixed; top: 0; inset-inline: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: clamp(1rem, 2vw, 1.6rem) var(--pad);
  mix-blend-mode: difference;
}
.brand { font-family: var(--mono); font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--bone); }
.brand b { color: var(--accent); font-weight: 600; }
.nav { display: flex; gap: clamp(1rem, 2.4vw, 2.4rem); font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; }
.nav a { position: relative; color: var(--bone-soft); transition: color .3s; }
.nav a::after { content: ""; position: absolute; left: 0; bottom: -4px; width: 0; height: 1px; background: var(--accent); transition: width .35s var(--ease); }
.nav a:hover { color: var(--bone); } .nav a:hover::after { width: 100%; }
@media (max-width: 640px) {
  .site-head { padding: .85rem 1rem; }
  .nav { gap: .85rem; font-size: .6rem; letter-spacing: .08em; }
}

/* ---- hero ---- */
.hero { position: relative; min-height: 100svh; display: grid; align-items: end; padding-bottom: clamp(2.5rem, 6vh, 6rem); overflow: hidden; }
/* full-page fixed background field, behind all content on every page.
   canvas is a replaced element — needs explicit size, inset:0 won't stretch it.
   pointer-events:none so links/text stay clickable; pointer tracked on window. */
#field { position: fixed; inset: 0; width: 100vw; height: 100svh; z-index: -1; opacity: .9; pointer-events: none; }
.hero .wrap { z-index: 3; }
.hero-kicker {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .22em; text-transform: uppercase;
  color: var(--accent); display: flex; align-items: center; gap: .7rem; margin-bottom: 1.4rem;
}
.hero-kicker::before { content: ""; width: 2.4rem; height: 1px; background: var(--accent); }
.hero h1 {
  font-family: var(--serif);
  font-weight: 330;
  font-size: clamp(3.2rem, 13vw, 11rem);
  line-height: .92; letter-spacing: -.03em;
  font-variation-settings: "opsz" 144, "SOFT" 0, "WONK" 0;
}
.hero h1 em { font-style: italic; font-variation-settings: "opsz" 144, "SOFT" 50, "WONK" 1; color: var(--bone); }
.hero-sub {
  margin-top: clamp(1.4rem, 3vh, 2.4rem); max-width: 42ch;
  font-size: clamp(1.05rem, 1.4vw, 1.35rem); color: var(--bone-soft);
}
.hero-sub .typed { font-family: var(--mono); color: var(--bone); font-size: .92em; }
.hero-sub .caret { color: var(--accent); animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.scroll-cue { position: absolute; bottom: 1.6rem; right: var(--pad); z-index: 3; font-family: var(--mono); font-size: .68rem; letter-spacing: .18em; text-transform: uppercase; color: var(--bone-dim); writing-mode: vertical-rl; display: flex; align-items: center; gap: .8rem; }
.scroll-cue::after { content: ""; width: 1px; height: 3rem; background: linear-gradient(var(--bone-dim), transparent); animation: cue 2s var(--ease) infinite; }
@keyframes cue { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ---- section scaffolding ---- */
.section-pad { padding-block: clamp(5rem, 12vh, 11rem); }
.eyebrow { font-family: var(--mono); font-size: .72rem; letter-spacing: .2em; text-transform: uppercase; color: var(--accent); display: flex; align-items: center; gap: .8rem; }
.eyebrow .idx { color: var(--bone-dim); }
.h-section { font-family: var(--serif); font-weight: 340; font-size: clamp(2.2rem, 6vw, 4.4rem); line-height: 1.02; letter-spacing: -.02em; margin-top: 1.2rem; }
.lead { font-size: clamp(1.15rem, 1.7vw, 1.6rem); line-height: 1.5; color: var(--bone-soft); max-width: 46ch; }

/* ---- "what i do" pillars ---- */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border-block: 1px solid var(--line); margin-top: clamp(2.5rem, 6vh, 4.5rem); }
@media (max-width: 820px) { .pillars { grid-template-columns: 1fr; } }
.pillar { background: var(--ink); padding: clamp(1.6rem, 3vw, 2.6rem); transition: background .4s var(--ease); }
.pillar:hover { background: var(--ink-panel); }
.pillar .no { font-family: var(--mono); font-size: .72rem; color: var(--accent); letter-spacing: .1em; }
.pillar h3 { font-family: var(--serif); font-weight: 380; font-size: 1.7rem; margin: 1rem 0 .6rem; letter-spacing: -.01em; }
.pillar p { color: var(--bone-dim); font-size: .96rem; }

/* ---- project index (home) ---- */
.proj-list { border-top: 1px solid var(--line); margin-top: clamp(2.5rem,6vh,4rem); }
.proj-row {
  display: grid; grid-template-columns: 4rem 1fr auto; align-items: baseline; gap: clamp(1rem,3vw,3rem);
  padding: clamp(1.6rem, 3.4vw, 2.8rem) 0; border-bottom: 1px solid var(--line);
  position: relative; transition: padding-left .45s var(--ease);
}
.proj-row::before { content: ""; position: absolute; inset: 0; background: var(--accent); transform: scaleX(0); transform-origin: left; z-index: -1; opacity: .06; transition: transform .5s var(--ease); }
.proj-row:hover { padding-left: 1.4rem; }
.proj-row:hover::before { transform: scaleX(1); }
.proj-row .pn { font-family: var(--mono); font-size: .8rem; color: var(--bone-dim); }
.proj-row .pt { font-family: var(--serif); font-weight: 350; font-size: clamp(1.8rem, 4.4vw, 3.4rem); letter-spacing: -.02em; line-height: 1; transition: color .35s; }
.proj-row:hover .pt { color: var(--accent); }
.proj-row .pmeta { font-family: var(--mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--bone-dim); text-align: right; }
.proj-row .ptag { display: inline-flex; align-items: center; gap: .5rem; }
.proj-row .arrow { display: inline-block; transition: transform .4s var(--ease); }
.proj-row:hover .arrow { transform: translate(6px,-6px); }

/* ---- story timeline ---- */
.timeline { position: relative; margin-top: clamp(2.5rem,6vh,4rem); padding-left: clamp(1rem,4vw,3rem); }
.timeline::before { content: ""; position: absolute; left: 0; top: .4rem; bottom: .4rem; width: 1px; background: linear-gradient(var(--accent), var(--line) 30%, var(--line)); }
.tl-item { position: relative; padding: 0 0 clamp(2.4rem,5vh,3.6rem) clamp(1.4rem,3vw,2.4rem); }
.tl-item::before { content: ""; position: absolute; left: calc(-1 * clamp(1rem,4vw,3rem) - .5px); top: .55rem; width: 9px; height: 9px; border-radius: 50%; background: var(--ink); border: 1px solid var(--bone-dim); transform: translateX(-4px); transition: border-color .3s, background .3s; }
.tl-item:hover::before { background: var(--accent); border-color: var(--accent); }
.tl-when { font-family: var(--mono); font-size: .74rem; letter-spacing: .1em; color: var(--accent); }
.tl-role { font-family: var(--serif); font-weight: 360; font-size: clamp(1.4rem,3vw,2rem); margin: .4rem 0 .2rem; letter-spacing: -.01em; }
.tl-org { font-family: var(--mono); font-size: .8rem; color: var(--bone-soft); letter-spacing: .04em; }
.tl-desc { margin-top: .8rem; color: var(--bone-dim); max-width: 52ch; }

/* ---- project detail page ---- */
.proj-hero { min-height: 78svh; display: grid; align-items: end; padding-top: clamp(6rem,14vh,10rem); padding-bottom: clamp(2.5rem,6vh,5rem); position: relative; overflow: hidden; }
.proj-hero .ph-no { font-family: var(--mono); color: var(--accent); letter-spacing: .2em; font-size: .8rem; }
.proj-hero h1 { font-family: var(--serif); font-weight: 320; font-size: clamp(2.8rem,10vw,8rem); line-height: .94; letter-spacing: -.03em; margin-top: 1rem; }
.proj-hero h1 em { font-style: italic; font-variation-settings: "SOFT" 60, "WONK" 1; }
.ph-line { display: flex; flex-wrap: wrap; gap: 1.4rem 2.4rem; margin-top: clamp(1.6rem,4vh,2.6rem); font-family: var(--mono); font-size: .76rem; letter-spacing: .08em; text-transform: uppercase; color: var(--bone-dim); }
.ph-line b { color: var(--bone); font-weight: 500; display: block; margin-top: .3rem; font-size: .92rem; letter-spacing: .02em; text-transform: none; font-family: var(--sans); }
.status-live { display: inline-flex; align-items: center; gap: .5rem; color: var(--live); }
.status-live .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--live); box-shadow: 0 0 0 0 rgba(110,231,168,.6); animation: pulse 2.2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(110,231,168,.5);} 70%{ box-shadow: 0 0 0 8px rgba(110,231,168,0);} 100%{ box-shadow:0 0 0 0 rgba(110,231,168,0);} }

.prose { max-width: 60ch; }
.prose p { margin-top: 1.4rem; color: var(--bone-soft); }
.prose p:first-child { margin-top: 0; }
.prose .drop::first-letter { font-family: var(--serif); font-size: 3.4em; float: left; line-height: .8; padding: .1em .12em 0 0; color: var(--accent); font-weight: 300; }

.feature-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: clamp(2.5rem,6vh,4rem); }
@media (max-width: 720px){ .feature-grid { grid-template-columns: 1fr; } }
.feature { background: var(--ink); padding: clamp(1.5rem,3vw,2.4rem); transition: background .4s; }
.feature:hover { background: var(--ink-panel); }
.feature .fn { font-family: var(--mono); font-size: .72rem; color: var(--accent); }
.feature h4 { font-family: var(--serif); font-weight: 380; font-size: 1.35rem; margin: .8rem 0 .5rem; }
.feature p { color: var(--bone-dim); font-size: .92rem; }

.stack { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: clamp(2rem,5vh,3rem); }
.chip { font-family: var(--mono); font-size: .74rem; letter-spacing: .04em; color: var(--bone-soft); border: 1px solid var(--line-2); padding: .5rem .85rem; border-radius: 100px; transition: border-color .3s, color .3s; }
.chip:hover { border-color: var(--accent); color: var(--accent); }

/* next-project pager */
.pager { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); margin-top: clamp(4rem,10vh,7rem); }
.pager a { padding: clamp(2rem,5vw,3.5rem) 0; font-family: var(--serif); font-size: clamp(1.4rem,3.4vw,2.6rem); font-weight: 340; letter-spacing: -.02em; transition: color .35s; }
.pager a:hover { color: var(--accent); }
.pager .nx { text-align: right; } .pager .sml { font-family: var(--mono); font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; color: var(--bone-dim); display: block; margin-bottom: .6rem; }

/* ---- contact / footer ---- */
.contact { border-top: 1px solid var(--line); }
.contact h2 { font-family: var(--serif); font-weight: 320; font-size: clamp(2.6rem,9vw,7rem); line-height: .96; letter-spacing: -.03em; }
.contact h2 a { transition: color .35s; } .contact h2 a:hover { color: var(--accent); }
.contact-links { display: flex; flex-wrap: wrap; gap: 1.2rem 2.4rem; margin-top: clamp(2rem,5vh,3.4rem); font-family: var(--mono); font-size: .8rem; letter-spacing: .06em; text-transform: uppercase; }
.contact-links a { color: var(--bone-soft); position: relative; transition: color .3s; }
.contact-links a:hover { color: var(--accent); }
.site-foot { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; padding: 2.4rem var(--pad); font-family: var(--mono); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--bone-faint); border-top: 1px solid var(--line); }

/* ---- fill markers (remove when content lands) ---- */
.fill { color: var(--accent); border-bottom: 1px dashed var(--accent); font-style: normal; }

/* ---- reveal ---- */
.js .reveal { opacity: 0; transform: translateY(26px); }
.reveal.in { opacity: 1; transform: none; transition: opacity .9s var(--ease-out), transform .9s var(--ease-out); }
.reveal-line { overflow: hidden; }
.js .reveal-line > * { display: inline-block; transform: translateY(110%); }
.reveal-line.in > * { transform: none; transition: transform 1s var(--ease-out); }
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-line > * { opacity: 1 !important; transform: none !important; }
  .cursor-dot,.cursor-ring{ display:none; } body{ cursor:auto; }
}

/* failsafe: content can never stay hidden if JS dies mid-load */
.reveal-all .reveal, .reveal-all .reveal-line > *, .reveal-all .kinetic .kw {
  opacity: 1 !important; transform: none !important; filter: none !important;
}

/* ---- also builds (side-projects grid) ---- */
.builds-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(17.5rem, 1fr));
  gap: 1px; background: var(--line); border: 1px solid var(--line);
  margin-top: clamp(2.5rem, 6vh, 4rem);
}
.build-card {
  background: var(--ink); padding: clamp(1.4rem, 2.4vw, 1.9rem);
  display: flex; flex-direction: column; gap: .7rem; min-height: 12.5rem;
  transition: background .4s var(--ease);
}
.build-card:hover { background: var(--ink-panel); }
.build-card .bc-cat { font-family: var(--mono); font-size: .64rem; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); }
.build-card h4 { font-family: var(--serif); font-weight: 380; font-size: 1.4rem; letter-spacing: -.01em; line-height: 1.06; }
.build-card p { color: var(--bone-dim); font-size: .87rem; line-height: 1.45; flex: 1; }
.build-card .bc-stack { font-family: var(--mono); font-size: .64rem; color: var(--bone-faint); letter-spacing: .03em; line-height: 1.5; }
.build-card .bc-foot { display: flex; align-items: center; justify-content: space-between; gap: 1rem; font-family: var(--mono); font-size: .64rem; letter-spacing: .1em; text-transform: uppercase; padding-top: .2rem; }
.build-card .bc-priv { color: var(--bone-faint); display: inline-flex; align-items: center; gap: .45rem; }
.build-card .bc-priv::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--bone-faint); }
.build-card a.bc-link { color: var(--accent); }
.build-card a.bc-link .arrow { display: inline-block; transition: transform .3s var(--ease); }
.build-card a.bc-link:hover .arrow { transform: translate(3px, -3px); }

/* ---- portrait (who section) ---- */
.who-row { display: grid; grid-template-columns: minmax(0, 15rem) 1fr; gap: clamp(1.8rem, 4.5vw, 4rem); align-items: start; }
@media (max-width: 720px) { .who-row { grid-template-columns: 1fr; } .portrait { max-width: 14rem; } }
.portrait { margin: 0; position: relative; }
.portrait img {
  width: 100%; aspect-ratio: 1/1; object-fit: cover; display: block;
  border-radius: 10px; border: 1px solid var(--line-2);
  filter: grayscale(1) contrast(1.04) brightness(.97);
}
.portrait::after { /* subtle ink frame so the light bg integrates */
  content: ""; position: absolute; inset: 0; border-radius: 10px; pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(236,230,217,.06), inset 0 -40px 60px -30px rgba(10,10,11,.7);
}
.portrait figcaption { font-family: var(--mono); font-size: .66rem; letter-spacing: .1em; text-transform: uppercase; color: var(--bone-dim); margin-top: .9rem; }

/* ---- kinetic headlines (per-word rise + settle) ---- */
.kinetic .kw {
  display: inline-block; opacity: 0;
  transform: translateY(0.62em);
  filter: blur(6px);
  transition: opacity .65s var(--ease-out), transform .85s var(--ease-out), filter .55s var(--ease-out);
  transition-delay: calc(var(--i, 0) * 48ms);
  will-change: transform, opacity, filter;
}
.kinetic.in .kw { opacity: 1; transform: none; filter: none; }

/* ---- scrollytelling timeline ---- */
.tl-fill {
  position: absolute; left: 0; top: .4rem; width: 1px; height: 0; z-index: 1;
  background: var(--accent); box-shadow: 0 0 9px rgba(255,106,61,.55);
}
.tl-item::before { transition: background .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease); }
.tl-item.active::before { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-lo); }

@media (prefers-reduced-motion: reduce) {
  .kinetic .kw { opacity: 1 !important; transform: none !important; filter: none !important; }
  .tl-fill { display: none; }
}

/* ---- micro-interactions ---- */
.build-card { position: relative; transition: background .4s var(--ease), transform .4s var(--ease); }
.build-card::after {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform .45s var(--ease);
}
.build-card:hover { transform: translateY(-4px); }
.build-card:hover::after { transform: scaleX(1); }
.contact-links a::after { content: ""; display: block; height: 1px; width: 0; background: var(--accent); margin-top: 3px; transition: width .35s var(--ease); }
.contact-links a:hover::after { width: 100%; }
.nav a:active, .chip:active, .bc-link:active, .proj-row:active { transform: scale(.985); }

/* project-row titles: one line on desktop, wrap on mobile */
.proj-row .pt { white-space: nowrap; }

/* ============ MOBILE (<=640px) ============ */
@media (max-width: 640px) {
  .proj-row { grid-template-columns: 1fr; gap: .45rem; padding: 1.5rem 0; }
  .proj-row::before { display: none; }
  .proj-row:hover { padding-left: 0; }
  .proj-row .pt { white-space: normal; font-size: clamp(1.55rem, 7.5vw, 2.2rem); }
  .proj-row .pmeta { text-align: left; }
  .proj-row .arrow { display: none; }

  .builds-grid { grid-template-columns: 1fr; }
  .pillars { grid-template-columns: 1fr; }
  .ph-line { gap: 1rem 1.5rem; }
  .pager { grid-template-columns: 1fr; gap: 0; }
  .pager .nx { text-align: left; }
  .contact h2 { font-size: clamp(2.4rem, 13vw, 4rem); }
  .hero h1 { font-size: clamp(3rem, 17vw, 5rem); }
  .h-section { font-size: clamp(2rem, 9vw, 3rem); }
  .timeline { padding-left: 1.1rem; }
}

/* ---- scroll-driven progress hairline (progressive, Chromium/Safari 26+) ---- */
@supports (animation-timeline: scroll()) {
  @media (prefers-reduced-motion: no-preference) {
    body::marker { content: none } /* no-op guard so block isn't empty on lint */
    .read-progress {
      position: fixed; top: 0; left: 0; z-index: 101; width: 100%; height: 2px;
      background: linear-gradient(90deg, var(--accent), var(--accent-hi));
      transform-origin: 0 50%; transform: scaleX(0);
      animation: mdo-rp linear both; animation-timeline: scroll(root);
    }
    @keyframes mdo-rp { to { transform: scaleX(1) } }
  }
}