/* ============================================================
   Noah Baier — Portfolio 2.0
   Swiss / editorial · monochrom · zwei Disziplinen
   ============================================================ */

/* ---- Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Inter+Tight:ital,wght@0,400;0,500;0,600;0,700;0,800;0,900;1,500&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* ---- Tokens ---- */
:root {
  --cream:      #F4F1EC;
  --cream-2:    #ECE8E0;
  --ink:        #0E0E0E;
  --ink-soft:   rgba(14, 14, 14, 0.56);
  --ink-faint:  rgba(14, 14, 14, 0.34);
  --hairline:   rgba(14, 14, 14, 0.16);

  --ai-bg:      #0B0B0B;
  --ai-bg-2:    #121212;
  --ai-fg:      #EFEDE6;
  --ai-soft:    rgba(239, 237, 230, 0.52);
  --ai-line:    rgba(239, 237, 230, 0.10);
  --ai-accent:  oklch(0.82 0.15 148);   /* restrained phosphor green */

  --font-display: 'Inter Tight', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* tweakable */
  --grain: 0.55;          /* 0..1 */
  --motion: 1;            /* multiplier */

  --gutter: clamp(20px, 5.5vw, 96px);
  --maxw: 1680px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 500;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--ink); color: var(--cream); }

/* ---- Mono caption ---- */
.cap {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: clamp(10px, 0.78vw, 13px);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* ---- Layout helpers ---- */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
section { position: relative; }
.hr { height: 1px; background: var(--hairline); border: 0; margin: 0; }

/* ============================================================
   TRANSITION · Über mich → Web Design
   smooth, scroll-scrubbed entrance (no extra element)
   ============================================================ */
.web-seam { height: 0; border: 0; margin: 0; }

/* base keyframes: rise + fade, driven by scroll position */
@keyframes web-rise {
  from { opacity: 0; transform: translateY(70px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes web-line {
  from { opacity: 0; transform: translateY(58px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Modern path: tie each element's animation to its own scroll progress
   through the viewport, so it scrubs smoothly as you scroll down. */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .web-rise {
      opacity: 0;
      animation: web-rise linear both;
      animation-timeline: view();
      animation-range: entry 4% cover 30%;
    }
    .web-lead.web-rise { animation-name: web-line; animation-range: entry 6% cover 34%; }

    /* staggered scroll-scrub for the project list */
    .toc li.web-rise { animation-range: entry 2% cover 26%; }
    .toc li.web-rise:nth-child(1) { animation-range: entry 6%  cover 30%; }
    .toc li.web-rise:nth-child(2) { animation-range: entry 11% cover 35%; }
    .toc li.web-rise:nth-child(3) { animation-range: entry 16% cover 40%; }
    .toc li.web-rise:nth-child(4) { animation-range: entry 21% cover 45%; }
  }
}

.hyph { hyphens: manual; }

/* ============================================================
   FIXED CHROME — nav + grain
   ============================================================ */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 80;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px var(--gutter);
  mix-blend-mode: difference;            /* stays legible over light & dark */
  color: #fff;
  pointer-events: none;
}
.nav a, .nav .cap { pointer-events: auto; color: #fff; }
.nav .cap { color: rgba(255,255,255,0.7); }
.nav .brand { font-weight: 800; letter-spacing: -0.03em; font-size: clamp(15px, 1.1vw, 18px); }
.nav .links { display: flex; gap: clamp(14px, 1.6vw, 30px); }
.nav .links a { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; opacity: 0.85; transition: opacity .3s; }
.nav .links a:hover { opacity: 1; }
@media (max-width: 720px){ .nav .links a:not(.contact-link){ display:none; } }

/* film grain overlay */
#grain {
  position: fixed; inset: -60%;
  width: 220%; height: 220%;
  pointer-events: none; z-index: 90;
  opacity: calc(var(--grain) * 0.22);
  background-image: var(--grain-img);
  background-size: 200px 200px;
  mix-blend-mode: multiply;
  will-change: transform;
  animation: grainshift 0.7s steps(5) infinite;
}
@keyframes grainshift {
  0%   { transform: translate(0,0); }
  20%  { transform: translate(-6%, 4%); }
  40%  { transform: translate(5%, -5%); }
  60%  { transform: translate(-4%, -6%); }
  80%  { transform: translate(6%, 3%); }
  100% { transform: translate(0,0); }
}
@media (prefers-reduced-motion: reduce){ #grain{ animation: none; } }

/* ============================================================
   REVEAL ANIMATIONS
   ============================================================ */
.reveal { opacity: 0; transform: translateY(calc(46px * var(--motion))); }
.reveal.in {
  opacity: 1; transform: none;
  transition: opacity calc(0.9s * var(--motion)) ease,
              transform calc(1s * var(--motion)) cubic-bezier(.16,1,.3,1);
}
.mask-line { overflow: hidden; }
.mask-line > * {
  display: block;
  transform: translateY(105%);
  transition: transform calc(1.05s * var(--motion)) cubic-bezier(.16,1,.3,1);
}
.mask-line.in > * { transform: none; }
@media (prefers-reduced-motion: reduce){
  .reveal, .reveal.in, .mask-line > *, .mask-line.in > * { opacity:1 !important; transform:none !important; transition:none !important; }
}

/* ============================================================
   1 · HERO
   ============================================================ */
.hero {
  min-height: 100svh;
  display: grid;
  grid-template-rows: 1fr auto;
  padding-top: clamp(90px, 14vh, 160px);
  overflow: hidden;
}
.hero-fog {
  position: absolute; inset: -10% -5% auto -5%;
  width: 110%; height: 125%;
  z-index: 0; pointer-events: none;
  -webkit-mask: radial-gradient(92% 68% at 53% 54%, #000 6%, transparent 60%);
          mask: radial-gradient(92% 68% at 53% 54%, #000 6%, transparent 60%);
  opacity: 0.6;
  animation: fogdrift 26s ease-in-out infinite alternate;
}
@keyframes fogdrift {
  0%   { transform: translate(0,0) scale(1.02); }
  100% { transform: translate(2.5%, -2%) scale(1.08); }
}
@media (prefers-reduced-motion: reduce){ .hero-fog{ animation:none; } }

.hero-main { position: relative; z-index: 2; align-self: end; padding-bottom: clamp(24px, 5vh, 64px); }
.hero-kicker { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: clamp(18px, 3vh, 40px); }

.hero-title {
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 0.84;
  font-size: clamp(4.2rem, 19vw, 18rem);
  margin: 0;
}
.hero-title .l2 { font-weight: 500; }   /* "folio" lighter for editorial contrast */
.hero-name {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.4em;
  margin-top: clamp(14px, 2.4vh, 28px);
  font-size: clamp(1.1rem, 2.5vw, 2.1rem);
  font-weight: 600; letter-spacing: -0.02em;
}
.hero-name .sub { color: var(--ink-soft); font-weight: 500; }
.hero-name > span:first-child { white-space: nowrap; }

.hero-foot {
  position: relative; z-index: 2;
  display: flex; justify-content: space-between; align-items: end;
  padding-block: 20px 26px;
  border-top: 1px solid var(--hairline);
}
.hero-foot .scrollhint { display: flex; align-items: center; gap: 10px; }
.hero-foot .scrollhint .arrow { display:inline-block; animation: bob 2.4s ease-in-out infinite; }
@keyframes bob { 0%,100%{ transform: translateY(0);} 50%{ transform: translateY(5px);} }

/* ============================================================
   2 · ABOUT
   ============================================================ */
.about { padding-block: clamp(80px, 14vh, 200px); }
.section-head { display:flex; justify-content:space-between; align-items:baseline; margin-bottom: clamp(36px, 6vh, 80px); }
.section-head h2 {
  font-size: clamp(13px, 1vw, 15px);
  font-family: var(--font-mono); font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase; margin: 0;
}
.about-grid { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); gap: clamp(36px, 6vw, 110px); align-items: start; }
.portrait { width: 100%; aspect-ratio: 4/5; }
.portrait image-slot { width: 100%; height: 100%; filter: grayscale(1) contrast(1.04); }
/* transparent cutout photo: kill the slot's grey backing so no rectangular edge shows */
.portrait image-slot::part(frame) { background: transparent !important; }
.portrait image-slot::part(ring) { display: none !important; }
/* soft fade where the photo is cropped at the bottom, so it doesn't end in a hard square line */
.portrait image-slot::part(image) {
  -webkit-mask-image: linear-gradient(to bottom, #000 62%, rgba(0,0,0,0) 100%);
          mask-image: linear-gradient(to bottom, #000 62%, rgba(0,0,0,0) 100%);
}
.about-intro { font-size: clamp(1.4rem, 2.4vw, 2.5rem); font-weight: 500; letter-spacing: -0.02em; line-height: 1.12; margin: 0 0 clamp(40px, 7vh, 90px); text-wrap: balance; }

/* ---- about index · editorial accordion ---- */
.atoc { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--hairline); }
.atoc-item { border-bottom: 1px solid var(--hairline); }
.atoc-head {
  width: 100%; background: none; border: 0; cursor: pointer; color: var(--ink);
  font-family: inherit; text-align: left;
  display: grid; grid-template-columns: auto 1fr auto auto; align-items: baseline;
  gap: clamp(14px, 2.6vw, 40px);
  padding: clamp(18px, 3vh, 32px) 0;
  transition: padding-left .55s cubic-bezier(.16,1,.3,1);
}
.atoc-head:hover, .atoc-head:focus-visible { padding-left: clamp(8px, 1.6vw, 26px); outline: none; }
.atoc-num { font-family: var(--font-mono); font-size: 13px; color: var(--ink-faint); }
.atoc-name { font-size: clamp(1.7rem, 4.4vw, 3.4rem); font-weight: 700; letter-spacing: -0.035em; line-height: 0.95; transition: opacity .45s ease; }
.atoc-hint { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-soft); white-space: nowrap; align-self: center; transition: opacity .4s ease; }
.atoc-item.open .atoc-hint { opacity: 0; }

/* +/× toggle glyph */
.atoc-ico { position: relative; width: 16px; height: 16px; align-self: center; flex: none; }
.atoc-ico::before, .atoc-ico::after { content: ""; position: absolute; background: var(--ink); transition: transform .55s cubic-bezier(.16,1,.3,1); }
.atoc-ico::before { left: 0; top: 50%; width: 100%; height: 1.5px; transform: translateY(-50%); }
.atoc-ico::after  { top: 0; left: 50%; height: 100%; width: 1.5px; transform: translateX(-50%); }
.atoc-item.open .atoc-ico::before { transform: translateY(-50%) rotate(180deg); }
.atoc-item.open .atoc-ico::after  { transform: translateX(-50%) scaleY(0); }

/* expanding panel — grid-rows trick for smooth height */
.atoc-panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .6s cubic-bezier(.16,1,.3,1); }
.atoc-item.open .atoc-panel { grid-template-rows: 1fr; }
.atoc-inner { overflow: hidden; min-height: 0; }
.atoc-content {
  display: grid; gap: 14px;
  padding: 2px 0 clamp(24px, 3.4vh, 40px);
  padding-left: clamp(30px, 4.4vw, 72px);
  opacity: 0; transform: translateY(12px);
  transition: opacity .55s ease, transform .65s cubic-bezier(.16,1,.3,1);
}
.atoc-item.open .atoc-content { opacity: 1; transform: none; transition-delay: .08s; }
.atoc-content .row { display: grid; gap: 3px; }
.atoc-content .row .t { font-size: clamp(1rem, 1.25vw, 1.2rem); font-weight: 600; letter-spacing: -0.01em; }
.atoc-content .row .d { color: var(--ink-soft); font-size: clamp(0.92rem, 1.05vw, 1.02rem); font-weight: 500; }
.atoc-content .row .y { font-family: var(--font-mono); font-size: 12px; color: var(--ink-faint); letter-spacing: 0.04em; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.03em; padding: 7px 12px; border: 1px solid var(--hairline); border-radius: 100px; }

/* editorial focus — dim others on hover, keep open one readable */
@media (hover: hover) {
  .atoc:hover .atoc-name { opacity: 0.32; }
  .atoc:hover .atoc-item:hover .atoc-name { opacity: 1; }
  .atoc .atoc-item.open .atoc-name { opacity: 1; }
}
@media (max-width: 620px){
  .atoc-head { grid-template-columns: auto 1fr auto; }
  .atoc-hint { display: none; }
  .atoc-content { padding-left: clamp(20px, 9vw, 44px); }
}

/* ============================================================
   3 · WEB DESIGN
   ============================================================ */
.web { padding-block: clamp(40px, 6vh, 80px) clamp(80px, 14vh, 180px); }
.web-lead { font-size: clamp(2.4rem, 8vw, 7.5rem); font-weight: 800; letter-spacing: -0.045em; line-height: 0.9; margin: 0 0 clamp(40px, 8vh, 110px); }
.web-lead .dim { color: var(--ink-faint); }

.projects { display: grid; gap: clamp(60px, 11vh, 150px); }

/* ---- table-of-contents index ---- */
.toc { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--hairline); }
.toc > li { border-bottom: 1px solid var(--hairline); }
.toc-item {
  width: 100%; background: none; border: 0; cursor: pointer; color: var(--ink);
  font-family: inherit; text-align: left;
  display: grid; grid-template-columns: auto 1fr auto auto; align-items: baseline;
  gap: clamp(16px, 3vw, 48px);
  padding: clamp(20px, 3.4vh, 38px) 0;
  transition: padding-left .55s cubic-bezier(.16,1,.3,1);
}
.toc-item:hover, .toc-item:focus-visible { padding-left: clamp(8px, 1.6vw, 28px); outline: none; }
.toc-num { font-family: var(--font-mono); font-size: 13px; color: var(--ink-faint); }
.toc-name { font-size: clamp(2rem, 5.4vw, 4.6rem); font-weight: 700; letter-spacing: -0.035em; line-height: 0.95; transition: opacity .45s ease; }
.toc-tag { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-soft); white-space: nowrap; }
.toc-go { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.05em; color: var(--ink-faint); opacity: 0; transform: translateX(-8px); transition: opacity .4s, transform .4s cubic-bezier(.16,1,.3,1); white-space: nowrap; }
.toc-item:hover .toc-go, .toc-item:focus-visible .toc-go { opacity: 1; transform: none; }
/* dim siblings on hover — editorial focus */
@media (hover: hover) {
  .toc:hover .toc-item .toc-name { opacity: 0.32; }
  .toc:hover .toc-item:hover .toc-name { opacity: 1; }
}
@media (max-width: 760px){
  .toc-item { grid-template-columns: auto 1fr; row-gap: 8px; }
  .toc-tag { grid-column: 2 / 3; }
  .toc-go { display: none; }
}

/* ---- floating hover preview ---- */
.toc-preview {
  position: fixed; top: 0; left: 0; z-index: 70;
  width: clamp(220px, 21vw, 330px);
  pointer-events: none;
  opacity: 0; transform: translate(-50%, -50%) scale(0.9);
  transition: opacity .35s ease, transform .55s cubic-bezier(.16,1,.3,1);
  will-change: transform, left, top;
}
.toc-preview.show { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.tp-card { display: grid; gap: 10px; }
.tp-img {
  width: 100%; aspect-ratio: 16/10; background: var(--cream-2);
  background-size: cover; background-position: center;
  filter: grayscale(1) contrast(1.03);
  box-shadow: 0 24px 60px -24px rgba(14,14,14,0.4);
  position: relative; overflow: hidden;
}
.tp-img::before {
  content: ""; position: absolute; inset: 0;
  background-image: repeating-linear-gradient(45deg, var(--hairline) 0 1px, transparent 1px 9px);
  opacity: 1; transition: opacity .3s;
}
.tp-img.filled::before { opacity: 0; }
.tp-meta { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.tp-name { font-weight: 700; letter-spacing: -0.02em; font-size: 1.05rem; }
.tp-open { color: var(--ink-faint); }
@media (hover: none) { .toc-preview { display: none; } }

/* ---- project detail overlay ---- */
.proj-overlay {
  position: fixed; inset: 0; z-index: 100; background: var(--cream);
  opacity: 0; visibility: hidden; transition: opacity .5s ease, visibility .5s;
  overflow-y: auto; overscroll-behavior: contain;
  display: flex; flex-direction: column;
}
.proj-overlay.open { opacity: 1; visibility: visible; }
.po-bar {
  position: sticky; top: 0; z-index: 3;
  display: flex; justify-content: space-between; align-items: center;
  padding-block: 18px; background: var(--cream);
  border-bottom: 1px solid var(--hairline);
}
.po-close {
  background: none; border: 0; cursor: pointer; color: var(--ink);
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase;
  display: inline-flex; gap: 8px; align-items: center; padding: 6px 0;
}
.po-close span { transition: transform .4s cubic-bezier(.16,1,.3,1); display: inline-block; }
.po-close:hover span { transform: rotate(90deg); }

.po-stage { flex: 1; padding-block: clamp(28px, 6vh, 70px); }
.proj-panel { display: none; }
.proj-panel.active { display: block; }
.proj-overlay.open .proj-panel.active { animation: panelIn .7s cubic-bezier(.16,1,.3,1) both; }
@keyframes panelIn { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: none; } }

.po-head { display: grid; grid-template-columns: auto 1fr auto; gap: clamp(14px, 3vw, 36px); align-items: baseline; margin-bottom: clamp(24px, 4vh, 48px); }
.po-num { font-family: var(--font-mono); font-size: 14px; color: var(--ink-faint); }
.po-title { font-size: clamp(2.6rem, 8vw, 7rem); font-weight: 800; letter-spacing: -0.045em; line-height: 0.9; margin: 0; }
.po-tag { align-self: center; }
.po-shot { width: 100%; aspect-ratio: 16/9; overflow: hidden; background: var(--cream-2); margin-bottom: clamp(28px, 5vh, 64px); }
.po-shot image-slot { width: 100%; height: 100%; filter: grayscale(1) contrast(1.03); }
.po-body { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr); gap: clamp(28px, 6vw, 100px); align-items: start; }
.po-desc { font-size: clamp(1.3rem, 2.3vw, 2.1rem); font-weight: 500; letter-spacing: -0.015em; line-height: 1.22; margin: 0; text-wrap: pretty; }
.po-side { display: grid; gap: 18px; }
.po-row { display: grid; gap: 3px; padding-bottom: 14px; border-bottom: 1px solid var(--hairline); }
.po-row .lbl { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); }
.po-row span:not(.lbl) { font-size: 1.05rem; font-weight: 600; letter-spacing: -0.01em; }
.po-link { font-size: 1.1rem; font-weight: 600; letter-spacing: -0.01em; display: inline-flex; gap: 6px; align-items: center; width: max-content; position: relative; }
.po-link::after { content: ""; position: absolute; left: 0; bottom: -3px; width: 100%; height: 2px; background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform .5s cubic-bezier(.16,1,.3,1); }
.po-link:hover::after { transform: scaleX(1); }
.po-link span { transition: transform .4s cubic-bezier(.16,1,.3,1); }
.po-link:hover span { transform: translate(3px, -3px); }

.po-foot { display: flex; justify-content: space-between; gap: 16px; padding-block: clamp(28px, 5vh, 56px); border-top: 1px solid var(--hairline); }
.po-foot button { background: none; border: 0; cursor: pointer; color: var(--ink); font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.05em; text-transform: uppercase; display: inline-flex; gap: 8px; align-items: center; padding: 8px 0; transition: opacity .3s; }
.po-foot button span { display: inline-block; transition: transform .4s cubic-bezier(.16,1,.3,1); }
.po-prev:hover span { transform: translateX(-5px); }
.po-next:hover span { transform: translateX(5px); }
body.overlay-open { overflow: hidden; }
body.overlay-open .nav { opacity: 0; pointer-events: none; }
@media (max-width: 760px){
  .po-head { grid-template-columns: auto 1fr; }
  .po-tag { grid-column: 2 / 3; align-self: start; }
  .po-body { grid-template-columns: 1fr; gap: 28px; }
}

/* ============================================================
   4 · KI — dark terminal break
   ============================================================ */
.ai {
  background: var(--ai-bg);
  color: var(--ai-fg);
  padding-block: clamp(90px, 16vh, 220px);
  /* grid raster */
  background-image:
    linear-gradient(var(--ai-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--ai-line) 1px, transparent 1px);
  background-size: clamp(40px, 6vw, 88px) clamp(40px, 6vw, 88px);
}
.ai::selection, .ai ::selection { background: var(--ai-accent); color: #001; }
.ai .cap { color: var(--ai-soft); }
.ai .section-head { border: 0; }
.ai .section-head h2 { color: var(--ai-soft); }

.ai-prompt { font-family: var(--font-mono); font-size: clamp(12px, 1vw, 15px); color: var(--ai-accent); margin-bottom: clamp(20px, 3vh, 36px); display:flex; gap: 10px; align-items:center; }
.ai-prompt .cursor { width: 9px; height: 1.05em; background: var(--ai-accent); display:inline-block; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 0%,50%{ opacity:1;} 51%,100%{ opacity:0;} }

.ai-lead { font-size: clamp(2.6rem, 9vw, 8.5rem); font-weight: 800; letter-spacing: -0.045em; line-height: 0.88; margin: 0 0 clamp(28px, 5vh, 60px); }
.ai-lead .out { -webkit-text-stroke: 1.4px var(--ai-fg); color: transparent; }
.ai-intro { font-size: clamp(1.2rem, 2.1vw, 2rem); font-weight: 500; letter-spacing: -0.015em; line-height: 1.22; max-width: 28ch; color: var(--ai-fg); margin: 0 0 clamp(54px, 9vh, 120px); }
.ai-intro .soft { color: var(--ai-soft); }

.ai-status { display:grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr)); gap: 1px; background: var(--ai-line); border: 1px solid var(--ai-line); margin-bottom: clamp(54px, 9vh, 120px); }
.ai-status .cell { background: var(--ai-bg); padding: clamp(22px, 3vw, 38px); display: grid; gap: 10px; align-content: start; }
.ai-status .cell .k { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ai-soft); }
.ai-status .cell .v { font-size: clamp(1.3rem, 2vw, 1.9rem); font-weight: 700; letter-spacing: -0.02em; }
.ai-status .cell .n { color: var(--ai-soft); font-size: 0.95rem; }

.svc-head { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ai-soft); margin-bottom: clamp(20px, 3vh, 34px); }
.services { display: grid; }
.service { display: grid; grid-template-columns: clamp(40px, 5vw, 70px) 1fr auto; gap: clamp(16px, 3vw, 44px); align-items: baseline; padding-block: clamp(22px, 3.2vh, 38px); border-top: 1px solid var(--ai-line); transition: padding-left .5s cubic-bezier(.16,1,.3,1), background .4s; }
.services .service:last-child { border-bottom: 1px solid var(--ai-line); }
.service:hover { padding-left: clamp(8px, 1.5vw, 24px); background: linear-gradient(90deg, rgba(239,237,230,0.04), transparent); }
.service .num { font-family: var(--font-mono); font-size: 13px; color: var(--ai-accent); }
.service .name { font-size: clamp(1.5rem, 3.2vw, 2.8rem); font-weight: 700; letter-spacing: -0.03em; line-height: 1; }
.service .desc { color: var(--ai-soft); font-size: clamp(0.95rem, 1.1vw, 1.08rem); line-height: 1.4; max-width: 40ch; justify-self: end; text-align: left; }
@media (max-width: 760px){
  .service { grid-template-columns: clamp(34px,8vw,50px) 1fr; }
  .service .desc { grid-column: 2 / 3; justify-self: start; }
}

/* ============================================================
   5 · CONTACT / FOOTER
   ============================================================ */
.contact { padding-block: clamp(90px, 16vh, 220px) clamp(40px, 6vh, 70px); }
.contact-cta { font-size: clamp(2.6rem, 11vw, 11rem); font-weight: 800; letter-spacing: -0.05em; line-height: 0.86; margin: 0 0 clamp(40px, 8vh, 90px); }
.contact-mail { display: inline-flex; align-items: center; gap: 0.3em; position: relative; }
.contact-mail::after { content:""; position:absolute; left:0; right:0; bottom: 0.08em; height: 3px; background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform .6s cubic-bezier(.16,1,.3,1); }
.contact-mail:hover::after { transform: scaleX(1); }
.contact-mail .ar { font-weight: 500; transition: transform .5s cubic-bezier(.16,1,.3,1); }
.contact-mail:hover .ar { transform: translate(0.12em, -0.12em); }

.footer { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); gap: clamp(24px, 4vw, 60px); padding-top: clamp(36px, 6vh, 70px); border-top: 1px solid var(--hairline); }
.footer .col { display: grid; gap: 10px; align-content: start; }
.footer .col .lbl { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 4px; }
.footer .col a { font-size: clamp(1rem, 1.3vw, 1.2rem); font-weight: 600; letter-spacing: -0.01em; width: max-content; position: relative; }
.footer .col a::after { content:""; position:absolute; left:0; bottom:-2px; width:100%; height:1px; background: var(--ink); transform: scaleX(0); transform-origin:left; transition: transform .4s ease; }
.footer .col a:hover::after { transform: scaleX(1); }
.footer .copyline { grid-column: 1 / -1; display:flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-top: clamp(30px, 6vh, 70px); }

/* ============================================================
   TRANSITION · Web → KI
   ============================================================ */
.shift {
  position: relative;
  min-height: clamp(460px, 78vh, 820px);
  display: grid; place-items: center;
  overflow: hidden;
  background: linear-gradient(180deg,
    var(--cream) 0%, var(--cream) 14%,
    #050505 90%, var(--ai-bg) 100%);
}
.shift-inner { width: 100%; display: grid; place-items: center; text-align: center; }
.shift-statement {
  margin: 0; font-weight: 800; letter-spacing: -0.045em; line-height: 0.98;
  font-size: clamp(2.2rem, 7vw, 6rem);
}
.shift-statement .a { display: block; color: var(--ink); }
.shift-statement .b { display: block; color: var(--cream); }
.shift-cap { position: absolute; z-index: 2; }
.shift-cap.top { top: clamp(24px, 5vh, 52px); left: var(--gutter); color: var(--ink-soft); }
.shift-cap.bottom { bottom: clamp(24px, 5vh, 52px); right: var(--gutter); color: var(--ai-soft); }
.shift-line {
  position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 1px; height: clamp(64px, 13vh, 140px);
  background: linear-gradient(var(--ai-line), var(--ai-accent));
}
@media (max-width: 600px){
  .shift-cap.top, .shift-cap.bottom { left: var(--gutter); right: var(--gutter); }
  .shift-cap.bottom { text-align: right; }
}

/* ---- reverse transition · KI → Kontakt (dark → cream) ---- */
.shift-rev {
  background: linear-gradient(180deg,
    var(--ai-bg) 0%, var(--ai-bg) 12%,
    #060606 16%, var(--cream) 88%, var(--cream) 100%);
}
.shift-rev .shift-inner { gap: clamp(20px, 4vh, 40px); }
.shift-rev .shift-statement .a { color: var(--ai-fg); }
.shift-rev .shift-statement .b { color: var(--ink); }
.shift-rev .shift-cap.top { color: var(--ai-soft); }
.shift-rev .shift-cap.bottom { color: var(--ink-soft); }
.shift-rev .shift-line { top: 0; bottom: auto; background: linear-gradient(var(--ai-accent), transparent); }
.shift-grid {
  position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(var(--ai-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--ai-line) 1px, transparent 1px);
  background-size: clamp(40px, 6vw, 88px) clamp(40px, 6vw, 88px);
  -webkit-mask: linear-gradient(180deg, #000 0%, transparent 52%);
          mask: linear-gradient(180deg, #000 0%, transparent 52%);
}
.shift-rev .shift-inner { position: relative; z-index: 1; }
.shift-prompt { font-family: var(--font-mono); font-size: clamp(12px, 1vw, 15px); color: var(--ai-accent); display: flex; gap: 8px; align-items: center; justify-content: center; }
.shift-prompt .cursor { width: 9px; height: 1.05em; background: var(--ai-accent); display: inline-block; animation: blink 1.1s steps(1) infinite; }

/* ---- clickable certified status cell ---- */
.ai-status .cell.cell-btn { cursor: pointer; text-align: left; font-family: inherit; border: 0; color: var(--ai-fg); transition: background .4s ease; }
.ai-status .cell.cell-btn:hover, .ai-status .cell.cell-btn:focus-visible { background: #181818; outline: none; }
.cell-btn .more { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ai-accent); display: inline-flex; gap: 6px; align-items: center; }
.cell-btn .more span { display: inline-block; transition: transform .4s cubic-bezier(.16,1,.3,1); }
.cell-btn:hover .more span { transform: translate(3px, -3px); }

/* ============================================================
   CERTIFICATE OVERLAY (dark)
   ============================================================ */
.cert-overlay {
  position: fixed; inset: 0; z-index: 100; background: var(--ai-bg); color: var(--ai-fg);
  opacity: 0; visibility: hidden; transition: opacity .5s ease, visibility .5s;
  overflow-y: auto; overscroll-behavior: contain;
  display: flex; flex-direction: column;
  background-image:
    linear-gradient(var(--ai-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--ai-line) 1px, transparent 1px);
  background-size: clamp(40px, 6vw, 88px) clamp(40px, 6vw, 88px);
}
.cert-overlay.open { opacity: 1; visibility: visible; }
.cert-overlay ::selection { background: var(--ai-accent); color: #001; }
.co-bar { position: sticky; top: 0; z-index: 3; display: flex; justify-content: space-between; align-items: center; padding-block: 18px; background: var(--ai-bg); border-bottom: 1px solid var(--ai-line); }
.co-bar .cap { color: var(--ai-soft); }
.co-close { background: none; border: 0; cursor: pointer; color: var(--ai-fg); font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; display: inline-flex; gap: 8px; align-items: center; padding: 6px 0; }
.co-close span { display: inline-block; transition: transform .4s cubic-bezier(.16,1,.3,1); }
.co-close:hover span { transform: rotate(90deg); }
.co-stage { flex: 1; display: grid; place-content: center; gap: clamp(20px, 4vh, 40px); padding-block: clamp(28px, 6vh, 80px); }
.co-prompt { font-family: var(--font-mono); font-size: clamp(12px, 1vw, 15px); color: var(--ai-accent); text-align: center; }
.cert { margin: 0; display: grid; gap: clamp(18px, 3vh, 30px); justify-items: center; }
.proj-overlay.open .proj-panel.active, .cert-overlay.open .cert { animation: panelIn .7s cubic-bezier(.16,1,.3,1) both; }
.cert-shot { width: min(840px, 100%); aspect-ratio: 1.41 / 1; background: #141414; box-shadow: 0 40px 110px -40px #000; }
.cert-shot image-slot { width: 100%; height: 100%; }
.cert-cap { display: grid; gap: 5px; text-align: center; }
.cert-cap .t { font-size: clamp(1.2rem, 2vw, 1.7rem); font-weight: 700; letter-spacing: -0.02em; }
.cert-cap .d { font-family: var(--font-mono); font-size: 12px; color: var(--ai-soft); letter-spacing: 0.05em; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px){
  .about-grid { grid-template-columns: 1fr; }
  .portrait { max-width: 360px; }
}