/* ════════════════════════════════════════════════
   Alexander Angerer — Telemetrie eines Ingenieurs
   Racing telemetry meets editorial journal.
   Archivo (wide) · Newsreader italic · Azeret Mono
   ════════════════════════════════════════════════ */

:root {
  --ink: #0b0e14;
  --ink-soft: #11151e;
  --paper: #e9e4d6;
  --paper-dim: #8d8a7e;
  --accent: #ff4d00;
  --accent-soft: rgba(255, 77, 0, 0.12);
  --line: rgba(233, 228, 214, 0.12);
  --line-soft: rgba(233, 228, 214, 0.06);
  --masthead-bg: rgba(11, 14, 20, 0.78);
  --stroke-faint: rgba(233, 228, 214, 0.16);

  --font-display: "Archivo", sans-serif;
  --font-serif: "Newsreader", serif;
  --font-mono: "Azeret Mono", monospace;

  --pad: clamp(1.25rem, 4vw, 4rem);
  --section-gap: clamp(6rem, 14vh, 11rem);
}

[data-theme="light"] {
  --ink: #ece7da;
  --ink-soft: #e2dcca;
  --paper: #16181f;
  --paper-dim: #6f6b5d;
  --accent: #e84300;
  --accent-soft: rgba(232, 67, 0, 0.09);
  --line: rgba(22, 24, 31, 0.18);
  --line-soft: rgba(22, 24, 31, 0.09);
  --masthead-bg: rgba(236, 231, 218, 0.8);
  --stroke-faint: rgba(22, 24, 31, 0.2);
  color-scheme: light;
}

*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scrollbar-color: var(--accent) var(--ink);
}

body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-display);
  font-variation-settings: "wdth" 100;
  font-weight: 380;
  line-height: 1.6;
  font-size: clamp(1rem, 0.95rem + 0.3vw, 1.125rem);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background 0.5s, color 0.5s;
}

::selection { background: var(--accent); color: var(--ink); }

.mono {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 450;
  font-size: 1.06em;
  letter-spacing: 0.01em;
}

a { color: inherit; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

.u-dim { color: var(--paper-dim); }

.dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: blink 2.4s ease-in-out infinite;
}

@keyframes blink { 50% { opacity: 0.25; } }

/* ── Atmosphere ─────────────────────────────── */

.grain {
  position: fixed; inset: -100%;
  z-index: 60;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 9s steps(10) infinite;
}

@keyframes grain {
  0%, 100% { transform: translate(0, 0); }
  20% { transform: translate(-3%, 2%); }
  40% { transform: translate(2%, -3%); }
  60% { transform: translate(-2%, -2%); }
  80% { transform: translate(3%, 3%); }
}

#gl {
  position: fixed; inset: 0;
  z-index: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}

.progress {
  position: fixed; top: 0; left: 0;
  z-index: 70;
  width: 100%; height: 2px;
  background: var(--accent);
  transform-origin: 0 50%;
  transform: scaleX(0);
}

.cursor {
  position: fixed; top: 0; left: 0;
  z-index: 80;
  width: 28px; height: 28px;
  margin: -14px 0 0 -14px;
  border: 1px solid rgba(255, 77, 0, 0.7);
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  transition: width 0.25s, height 0.25s, margin 0.25s, opacity 0.3s, background 0.25s;
}

.cursor::after {
  content: "";
  position: absolute; top: 50%; left: 50%;
  width: 4px; height: 4px;
  margin: -2px 0 0 -2px;
  border-radius: 50%;
  background: var(--accent);
}

.cursor.is-active {
  width: 56px; height: 56px;
  margin: -28px 0 0 -28px;
  background: var(--accent-soft);
}

@media (pointer: coarse) { .cursor { display: none; } }

/* ── Masthead ───────────────────────────────── */

.masthead {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.9rem var(--pad);
  border-bottom: 1px solid transparent;
  transition: background 0.4s, border-color 0.4s;
}

.masthead.is-scrolled {
  background: var(--masthead-bg);
  border-bottom-color: var(--line-soft);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.masthead__mark {
  text-decoration: none;
  font-weight: 500;
  letter-spacing: 0.14em;
}

.masthead__sep { color: var(--accent); margin: 0 0.15em; }

.masthead__nav {
  display: flex;
  gap: 1.4rem;
  margin-inline: auto;
  overflow-x: auto;
  scrollbar-width: none;
}

.masthead__nav::-webkit-scrollbar { display: none; }

.masthead__nav a {
  text-decoration: none;
  color: var(--paper-dim);
  white-space: nowrap;
  transition: color 0.25s;
}

.masthead__nav a:hover,
.masthead__nav a:focus-visible,
.masthead__nav a.is-current { color: var(--paper); }

.masthead__status {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--paper-dim);
}

.pulse {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(255, 77, 0, 0.5);
  animation: pulse 2.2s infinite;
}

@keyframes pulse {
  70% { box-shadow: 0 0 0 9px rgba(255, 77, 0, 0); }
}

.masthead__clock { color: var(--paper); min-width: 5.2em; text-align: right; }

.theme-toggle {
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  color: var(--paper);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 99px;
  padding: 0.3rem 0.85rem;
  cursor: pointer;
  transition: color 0.25s, border-color 0.25s;
}

.theme-toggle:hover,
.theme-toggle:focus-visible { color: var(--accent); border-color: var(--accent); }

@media (max-width: 900px) {
  .masthead { flex-wrap: wrap; gap: 0.6rem 1.2rem; }
  .masthead__status { margin-left: auto; }
  .masthead__open { display: none; }
  .masthead__nav { order: 3; flex-basis: 100%; margin-inline: 0; }
}

/* ── Hero ───────────────────────────────────── */

main { position: relative; z-index: 1; }

.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 7.5rem var(--pad) 4.5rem;
  position: relative;
}

.hero__kicker {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 2rem;
  color: var(--accent);
  margin-bottom: clamp(1.5rem, 4vh, 3rem);
}

.hero__kicker-dim { color: var(--paper-dim); }

.hero__name {
  font-size: clamp(2rem, 10.6vw, 10.5rem);
  line-height: 0.92;
  font-weight: 860;
  font-variation-settings: "wdth" 122;
  text-transform: uppercase;
  letter-spacing: -0.015em;
}

.hero__mask { display: block; overflow: hidden; }

.hero__line { display: block; will-change: transform; }

.hero__line--accent {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--paper);
  margin-left: clamp(0.5rem, 6vw, 7rem);
}

.hero__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2.5rem;
  margin-top: clamp(2rem, 6vh, 4.5rem);
}

.hero__lede {
  max-width: 32rem;
  font-size: clamp(1.1rem, 1rem + 0.5vw, 1.35rem);
  line-height: 1.55;
}

.hero__lede em { color: var(--accent); }

.hero__data { display: grid; gap: 0.55rem; color: var(--paper-dim); }

.hero__data div { display: flex; gap: 1.2rem; }

.hero__data dt { min-width: 5.5em; color: var(--accent); }

.hero__data dd { color: var(--paper); text-transform: none; letter-spacing: 0.03em; }

.hero__scroll {
  position: absolute;
  bottom: 2rem; right: var(--pad);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--paper-dim);
}

.hero__scroll-line {
  width: 56px; height: 1px;
  background: var(--paper-dim);
  position: relative;
  overflow: hidden;
}

.hero__scroll-line::after {
  content: "";
  position: absolute; inset: 0;
  background: var(--accent);
  transform: translateX(-100%);
  animation: scroll-line 2.2s ease-in-out infinite;
}

@keyframes scroll-line {
  60%, 100% { transform: translateX(100%); }
}

/* ── Ticker ─────────────────────────────────── */

.ticker {
  border-block: 1px solid var(--line);
  padding: 0.85rem 0;
  overflow: hidden;
  background: var(--ink);
  position: relative;
  z-index: 1;
}

.ticker__track { display: flex; width: max-content; animation: ticker 36s linear infinite; }

.ticker__group {
  display: flex;
  align-items: center;
  gap: 2.2rem;
  padding-right: 2.2rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-dim);
  white-space: nowrap;
}

.ticker__group i { color: var(--accent); font-style: normal; }

@keyframes ticker { to { transform: translateX(-50%); } }

/* ── Sections ───────────────────────────────── */

.section {
  position: relative;
  z-index: 1;
  padding: var(--section-gap) var(--pad) 0;
  background: var(--ink);
}

.section__head {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  column-gap: 1.4rem;
  margin-bottom: clamp(2.5rem, 6vh, 4.5rem);
  border-bottom: 1px solid var(--line);
  padding-bottom: 1.4rem;
}

.section__num { color: var(--accent); font-size: 0.8rem; }

.section__title {
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  font-weight: 800;
  font-variation-settings: "wdth" 118;
  text-transform: uppercase;
  line-height: 1;
  letter-spacing: -0.01em;
}

.section__sub {
  grid-column: 2;
  margin-top: 0.7rem;
  color: var(--paper-dim);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.05rem;
}

/* ── Forschung ──────────────────────────────── */

.research { display: flex; flex-direction: column; }

.research__item {
  display: grid;
  grid-template-columns: 5rem 1fr 11rem;
  gap: 1.5rem 2.5rem;
  padding: 2.2rem 0;
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.3s;
}

.research__item:hover { background: linear-gradient(90deg, var(--accent-soft), transparent 55%); }

.research__index { color: var(--accent); padding-top: 0.35rem; }

.research__body h3 {
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  font-weight: 700;
  font-variation-settings: "wdth" 110;
  line-height: 1.15;
  margin-bottom: 0.7rem;
}

.research__body p,
.project__body p { max-width: 44rem; color: color-mix(in srgb, var(--paper) 72%, var(--ink)); }

.research__tags,
.project__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1rem;
}

.research__tags span,
.project__tags span {
  border: 1px solid var(--line);
  border-radius: 99px;
  padding: 0.22rem 0.7rem;
  color: var(--paper-dim);
}

.research__meta {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  color: var(--paper-dim);
  text-align: right;
  padding-top: 0.35rem;
}

.research__live { display: inline-flex; align-items: center; gap: 0.45rem; justify-content: flex-end; color: var(--paper); }

@media (max-width: 800px) {
  .research__item { grid-template-columns: 1fr; gap: 0.9rem; }
  .research__meta { flex-direction: row; flex-wrap: wrap; text-align: left; gap: 1.2rem; }
  .research__live { justify-content: flex-start; }
}

/* ── Projekte ───────────────────────────────── */

.projects { list-style: none; }

.project {
  display: grid;
  grid-template-columns: 4rem 1fr auto;
  gap: 1rem 2.5rem;
  align-items: start;
  padding: 2rem 0;
  border-bottom: 1px solid var(--line-soft);
  position: relative;
  transition: padding-left 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.project::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  transform-origin: top;
}

.project:hover { padding-left: 1.4rem; }

.project:hover::before { transform: scaleY(1); }

.project__num { color: var(--accent); padding-top: 0.5rem; }

.project__title {
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  font-weight: 800;
  font-variation-settings: "wdth" 116;
  text-transform: uppercase;
  line-height: 1.05;
  margin-bottom: 0.6rem;
}

.project__year {
  color: var(--paper-dim);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding-top: 0.6rem;
}

@media (max-width: 700px) {
  .project { grid-template-columns: 1fr; gap: 0.5rem; }
  .project__year { padding-top: 0; }
  .project:hover { padding-left: 0.9rem; }
}

/* ── Logbuch ────────────────────────────────── */

.log {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.log__entry {
  background: var(--ink);
  padding: 1.8rem 1.6rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  transition: background 0.3s;
}

.log__entry:hover { background: var(--ink-soft); }

.log__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.1rem;
  color: var(--paper-dim);
}

.log__id { color: var(--accent); }

.log__title {
  font-size: 1.35rem;
  font-weight: 700;
  font-variation-settings: "wdth" 108;
  line-height: 1.2;
}

.log__excerpt { color: color-mix(in srgb, var(--paper) 70%, var(--ink)); font-size: 0.96rem; flex-grow: 1; }

.log__link {
  text-decoration: none;
  color: var(--paper);
  display: inline-flex;
  gap: 0.5rem;
  width: fit-content;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.2rem;
  transition: border-color 0.25s, color 0.25s;
}

.log__link:hover { color: var(--accent); border-color: var(--accent); }

.log__link span { transition: transform 0.25s; display: inline-block; }

.log__link:hover span { transform: translateX(4px); }

@media (max-width: 980px) { .log { grid-template-columns: 1fr; } }

/* ── Interessen ─────────────────────────────── */

.interests {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 6vw, 6rem);
}

/* Grid items default to min-width:auto, so the non-shrinking preview spines
   would force this column wider than the grid and overflow the page. */
.interests__col { min-width: 0; }

.interests__heading {
  color: var(--accent);
  margin-bottom: 1.6rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--line-soft);
}

.hobbies { list-style: none; display: flex; flex-direction: column; }

.hobbies li {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1.05rem 0;
  border-bottom: 1px solid var(--line-soft);
}

.hobbies__name {
  font-weight: 700;
  font-variation-settings: "wdth" 112;
  text-transform: uppercase;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

.hobbies__note {
  color: var(--paper-dim);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1rem;
}

/* Inline preview — the modest entry point into the 3D library */

.shelf-preview {
  display: block;
  width: 100%;
  text-align: left;
  font: inherit;
  color: inherit;
  background: transparent;
  border: 1px solid var(--line-soft);
  border-radius: 5px;
  padding: 0 1.5rem;
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.4s, background 0.4s;
}

.shelf-preview:hover,
.shelf-preview:focus-visible {
  outline: none;
  border-color: var(--line);
  background: linear-gradient(180deg, var(--accent-soft), transparent 62%);
}

/* the recess between the boards — books stand inside it, not on a line */
.shelf-preview__row {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 1px;
  height: 132px;
  margin: 0 -1.5rem;
  padding: 0 12px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.36), rgba(0, 0, 0, 0.12) 58%, rgba(0, 0, 0, 0.05));
  box-shadow: inset 0 18px 22px -16px rgba(0, 0, 0, 0.65);
  /* On narrow screens the spine row can exceed the column width; centre it and
     fade both edges so it bleeds out cleanly instead of sitting off to one side. */
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 6%, #000 94%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 6%, #000 94%, transparent 100%);
}

/* width / height / background / --spine-ink / --tilt set inline by JS from book data */
.shelf-preview__spine {
  position: relative;
  flex: 0 0 auto;
  border-radius: 1px 1px 0 0;
  box-shadow: inset 1px 0 0 rgba(255, 255, 255, 0.1),
    inset -2px 0 4px rgba(0, 0, 0, 0.38),
    inset 0 2px 2px -1px rgba(255, 255, 255, 0.14);
  transform: rotate(var(--tilt, 0deg)) translateY(var(--lift, 0px));
  transform-origin: bottom right;
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

/* publisher bands near the head and tail of each spine */
.shelf-preview__spine::before,
.shelf-preview__spine::after {
  content: "";
  position: absolute;
  left: 3px;
  right: 3px;
  height: 1px;
  background: var(--spine-ink, #ece5d4);
  opacity: 0.35;
}
.shelf-preview__spine::before { top: 6px; box-shadow: 0 3px 0 var(--spine-ink, #ece5d4); }
.shelf-preview__spine::after { bottom: 9px; }

.shelf-preview__spine-title {
  position: absolute;
  top: 13px;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  writing-mode: vertical-rl;
  font-family: var(--font-serif);
  font-size: 0.58rem;
  letter-spacing: 0.04em;
  line-height: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--spine-ink, #ece5d4);
  opacity: 0.92;
}

.shelf-preview:hover .shelf-preview__spine,
.shelf-preview:focus-visible .shelf-preview__spine { --lift: -7px; }

.shelf-preview__spine--current {
  --lift: -5px;
  box-shadow: inset 1px 0 0 rgba(255, 255, 255, 0.1),
    inset -2px 0 4px rgba(0, 0, 0, 0.38),
    0 0 16px color-mix(in srgb, var(--accent) 55%, transparent);
}

.shelf-preview__plank {
  display: block;
  height: 13px;
  margin: 0 -1.5rem;
  border-top: 1px solid color-mix(in srgb, var(--paper) 32%, transparent);
  background: linear-gradient(180deg,
    color-mix(in srgb, var(--paper) 26%, transparent) 0,
    color-mix(in srgb, var(--paper) 10%, transparent) 40%,
    rgba(0, 0, 0, 0.3) 100%);
}

.shelf-preview__plank--top {
  border-top: none;
  border-bottom: 1px solid rgba(0, 0, 0, 0.45);
  background: linear-gradient(0deg,
    color-mix(in srgb, var(--paper) 20%, transparent) 0,
    color-mix(in srgb, var(--paper) 8%, transparent) 45%,
    rgba(0, 0, 0, 0.22) 100%);
}

.shelf-preview__cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 0.1rem 1.1rem;
  color: var(--paper-dim);
}

.shelf-preview__enter {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--paper);
  transition: color 0.25s;
}

.shelf-preview__enter span { transition: transform 0.25s; display: inline-block; }
.shelf-preview:hover .shelf-preview__enter { color: var(--accent); }
.shelf-preview:hover .shelf-preview__enter span { transform: translateX(5px); }

.shelf-preview__now {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--paper-dim);
}

.shelf-preview__now em {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.05em;
  letter-spacing: 0;
  color: var(--paper);
}

@media (max-width: 880px) { .interests { grid-template-columns: 1fr; } }

/* ── Dossier ────────────────────────────────── */

.dossier {
  display: grid;
  /* Golden-ratio split (1.618 : 1): the tables sit in the right golden
     segment, so their entries anchor near 61.8% of the row at any width. */
  grid-template-columns: minmax(280px, 1.618fr) minmax(26rem, 1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
}

.dossier__bio { max-width: 36rem; }

.dossier__lead { font-size: 1.15rem; line-height: 1.65; margin-bottom: 1.1rem; }

.dossier__lead::first-letter {
  font-family: var(--font-serif);
  font-size: 3.1em;
  float: left;
  line-height: 0.8;
  padding-right: 0.12em;
  color: var(--accent);
}

.dossier__bio p + p { color: var(--paper-dim); }

.dossier__sub { color: var(--accent); margin: 2.2rem 0 0.9rem; }

.dossier__tables table { width: 100%; border-collapse: collapse; }

.dossier__tables th {
  /* 1% + nowrap pins the year column to its minimal width so the
     entry columns of both tables line up regardless of content. */
  width: 1%;
  text-align: left;
  vertical-align: top;
  color: var(--paper-dim);
  padding: 0.65rem 1.4rem 0.65rem 0;
  white-space: nowrap;
  font-weight: 400;
}

.dossier__tables td { padding: 0.65rem 0; border-bottom: 1px solid var(--line-soft); }

.dossier__tables td span { display: block; color: var(--paper-dim); font-size: 0.92rem; }

.dossier__skills {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.dossier__skills li {
  border: 1px solid var(--line);
  border-radius: 99px;
  padding: 0.25rem 0.75rem;
  color: var(--paper-dim);
}

@media (max-width: 800px) {
  .dossier { grid-template-columns: 1fr; }
}

/* ── Kontakt ────────────────────────────────── */

.section--contact { padding-bottom: var(--section-gap); }

.contact { text-align: center; padding: clamp(1rem, 5vh, 3rem) 0; }

.contact__line {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.2rem, 2.5vw, 1.7rem);
  color: var(--paper-dim);
  max-width: 34rem;
  margin: 0 auto 2.2rem;
}

.contact__line em { color: var(--paper); }

.contact__mail {
  display: inline-block;
  font-size: clamp(1.4rem, 5vw, 3.6rem);
  font-weight: 800;
  font-variation-settings: "wdth" 116;
  text-decoration: none;
  letter-spacing: -0.01em;
  position: relative;
  transition: color 0.3s;
  word-break: break-word;
}

.contact__mail span[aria-hidden] { color: var(--accent); font-weight: 400; }

.contact__mail::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -0.1em;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.contact__mail:hover { color: var(--accent); }

.contact__mail:hover::after { transform: scaleX(1); }

.contact__links {
  list-style: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 2.6rem;
}

.contact__links a {
  text-decoration: none;
  color: var(--paper-dim);
  transition: color 0.25s;
}

.contact__links a:hover { color: var(--accent); }

/* ── Colophon ───────────────────────────────── */

.colophon {
  position: relative;
  z-index: 1;
  background: var(--ink);
  border-top: 1px solid var(--line);
  overflow: hidden;
}

.colophon__word {
  font-size: clamp(3.4rem, 14.8vw, 15rem);
  font-weight: 880;
  font-variation-settings: "wdth" 125;
  line-height: 0.78;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  color: transparent;
  -webkit-text-stroke: 1px var(--stroke-faint);
  transform: translateY(0.18em);
  user-select: none;
}

.colophon__grid {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.6rem 2rem;
  padding: 1.4rem var(--pad) 1.6rem;
  border-top: 1px solid var(--line-soft);
  color: var(--paper-dim);
  background: var(--ink);
}

/* ── Reduced motion ─────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .grain, .ticker__track, .pulse, .dot, .hero__scroll-line::after { animation: none; }
  .cursor { display: none; }
}

/* ── project links + inline demo (Raceline Studio) ─── */
.project__links { display: flex; gap: 20px; margin-top: 14px; }

.project__links .log__link {
  color: var(--accent);
  border-bottom-color: color-mix(in srgb, var(--accent) 45%, transparent);
}

.project__demo { margin-top: 14px; }
.project__demo summary {
  cursor: pointer;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  transition: color 0.25s;
}
.project__demo summary:hover { text-decoration: underline; text-underline-offset: 4px; }
.project__demo[open] summary { color: var(--accent); }
.project__demo iframe {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #0a0c0e;
}
.project__demo-note {
  margin-top: 8px;
  font-size: 11px;
  color: var(--paper-dim);
}
.project__demo iframe { min-height: 540px; }

/* ════════════════════════════════════════════════
   Bücherregal — 3D library overlay + reader
   ════════════════════════════════════════════════ */

.library {
  /* Dim-room UI tokens — held independent of the page theme, since the
     library is always a dark room. Keeps bar/controls legible in light mode. */
  --paper: #ece5d4;
  --paper-dim: #9a958a;
  --line: rgba(236, 229, 212, 0.18);
  --line-soft: rgba(236, 229, 212, 0.08);
  --ink: #0b0e14;
  --ink-soft: #14161d;

  /* The book is always paper, in either theme — a book is a book. */
  --book-paper: #ece5d4;
  --book-paper-edge: #d8cfb8;
  --book-ink: #23252c;
  --book-dim: #6f6a59;
  --book-line: rgba(35, 37, 44, 0.16);

  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  /* 100dvh tracks the dynamic viewport, so the overlay stays truly full-screen
     while iOS Safari grows/shrinks its address bar — no sliver of the page
     behind it peeking out at the bottom. 100vh is the fallback. */
  height: 100vh;
  height: 100dvh;
  z-index: 75;
  display: none;
  opacity: 0;
  overscroll-behavior: none;
  /* The library is its own dim room, in either theme. */
  background: #080a0f;
}

.library.is-open { display: block; }

.library__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  cursor: grab;
}

.library__canvas:active { cursor: grabbing; }
.library.is-reading .library__canvas { cursor: default; }

/* Top bar */
.library__bar {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 1rem var(--pad);
  pointer-events: none;
}

.library__bar > * { pointer-events: auto; }

.library__brand { color: var(--paper); letter-spacing: 0.12em; }
.library__brand b { color: var(--accent); font-weight: 500; }

.library__hint {
  margin-inline: auto;
  color: var(--paper-dim);
  transition: opacity 0.3s;
}

.library.is-reading .library__hint { opacity: 0; }

.library__close {
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  color: var(--paper);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 99px;
  padding: 0.35rem 0.9rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: color 0.25s, border-color 0.25s;
}

.library__close:hover,
.library__close:focus-visible { color: var(--accent); border-color: var(--accent); }
.library__close span { font-size: 1.15em; line-height: 1; }

/* Hovered-book caption, centred at the bottom of the shelf view */
.library__caption {
  position: absolute;
  left: 50%;
  bottom: clamp(1.4rem, 5vh, 3rem);
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 99px;
  background: color-mix(in srgb, var(--ink) 70%, transparent);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity 0.25s, transform 0.25s;
  pointer-events: none;
  white-space: nowrap;
}

.library__caption.is-shown { opacity: 1; }
.library__caption-title { font-family: var(--font-serif); font-style: italic; color: var(--paper); }
.library__caption-author { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--paper-dim); }
.library.is-reading .library__caption { opacity: 0; }
.library.is-shelf .library__caption { bottom: clamp(4.6rem, 9vh, 6rem); }

/* Back-to-overview + shelf navigation */
.library__back {
  position: absolute;
  top: clamp(4rem, 8vh, 5rem);
  left: var(--pad);
  z-index: 3;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--paper-dim);
  background: transparent;
  border: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 0.3s, transform 0.3s, color 0.25s;
}

.library__back.is-shown { opacity: 1; pointer-events: auto; transform: none; }
.library__back:hover,
.library__back:focus-visible { color: var(--accent); outline: none; }
.library__back span { transition: transform 0.25s; }
.library__back:hover span { transform: translateX(-4px); }
.library.is-reading .library__back { opacity: 0; pointer-events: none; }

.library__nav {
  position: absolute;
  bottom: clamp(1.4rem, 5vh, 3rem);
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 1.1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.library__nav.is-shown { opacity: 1; pointer-events: auto; }
.library.is-reading .library__nav { opacity: 0; pointer-events: none; }

.library__navbtn {
  font: inherit;
  font-size: 1.2rem;
  line-height: 1;
  width: 2.4rem;
  height: 2.4rem;
  display: grid;
  place-items: center;
  color: var(--paper);
  background: color-mix(in srgb, var(--ink) 60%, transparent);
  border: 1px solid var(--line);
  border-radius: 50%;
  cursor: pointer;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  transition: color 0.25s, border-color 0.25s;
}

.library__navbtn:hover,
.library__navbtn:focus-visible { color: var(--accent); border-color: var(--accent); outline: none; }

.library__navlabel {
  color: var(--paper-dim);
  min-width: 4ch;
  text-align: center;
  letter-spacing: 0.1em;
}

@media (max-width: 620px) {
  .library__bar { gap: 0.7rem; padding: 0.85rem var(--pad); }
  .library__hint { display: none; }
  /* With the hint (and its auto margins) gone the close button would sit
     right next to the brand — keep the brand bounded and push the button
     back to the right edge so long genre names can wrap without overlap. */
  .library__brand { font-size: 0.62rem; line-height: 1.3; flex: 1; min-width: 0; }
  .library__close { flex-shrink: 0; margin-left: auto; }
  .library__back { top: 3.4rem; }
}

/* ── Reader (opened book) ───────────────────── */

.reader {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(1rem, 3vh, 1.8rem);
  padding: clamp(4.5rem, 10vh, 6rem) clamp(1rem, 4vw, 3rem) clamp(1.5rem, 5vh, 3rem);
}

.reader.is-open { display: flex; }

/* focus scrim — dims the shelf behind the open book */
.reader::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(ellipse 58% 64% at 50% 47%,
    rgba(11, 14, 20, 0.34), rgba(11, 14, 20, 0.86));
}

.reader__book {
  --page-w: clamp(15rem, 40vw, 23rem);
  --page-h: clamp(20rem, 60vh, 31rem);
  position: relative;
  display: flex;
  width: calc(var(--page-w) * 2);
  height: var(--page-h);
  max-width: 100%;
  perspective: 2600px;
  filter: drop-shadow(0 42px 64px rgba(0, 0, 0, 0.55));
}

.reader__page {
  position: relative;
  width: var(--page-w);
  height: 100%;
  background: var(--book-paper);
  color: var(--book-ink);
  padding: clamp(1.5rem, 2.6vw, 2.5rem);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  backface-visibility: hidden;
  background-image: radial-gradient(120% 80% at 50% 0%, rgba(255, 255, 255, 0.5), transparent 60%);
}

.reader__page--left {
  border-radius: 4px 0 0 4px;
  box-shadow: inset -26px 0 40px -30px rgba(0, 0, 0, 0.6);
}

.reader__page--right {
  border-radius: 0 4px 4px 0;
  box-shadow: inset 26px 0 40px -30px rgba(0, 0, 0, 0.6);
}

/* page-edge thickness */
.reader__page--left::before,
.reader__page--right::before {
  content: "";
  position: absolute;
  top: 2.5%;
  bottom: 2.5%;
  width: 6px;
  background: repeating-linear-gradient(90deg, var(--book-paper-edge), var(--book-paper-edge) 1px, transparent 1px, transparent 3px);
}

.reader__page--left::before { left: -6px; border-radius: 3px 0 0 3px; }
.reader__page--right::before { right: -6px; border-radius: 0 3px 3px 0; }

/* Left page — stable book identity */
.reader__status {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--book-dim);
}

.reader__status .dot { background: var(--accent); }
.reader__status--reading { color: var(--accent); }

.reader__title {
  margin-top: 0.9rem;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1.15;
  color: var(--book-ink);
}

.reader__author {
  margin-top: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--book-dim);
}

.reader__facts {
  margin-top: auto;
  display: grid;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--book-dim);
}

.reader__facts div { display: flex; justify-content: space-between; gap: 1rem; border-top: 1px solid var(--book-line); padding-top: 0.35rem; }
.reader__facts dt { text-transform: uppercase; }
.reader__facts dd { color: var(--book-ink); }

.reader__seal {
  position: absolute;
  right: clamp(1.4rem, 2.4vw, 2.2rem);
  top: clamp(1.3rem, 2.4vw, 2.1rem);
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--accent) 60%, transparent);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--accent) 85%, var(--book-ink));
  opacity: 0.75;
}

/* Right page — flippable content */
.reader__right { position: relative; width: var(--page-w); height: 100%; transform-style: preserve-3d; }
.reader__face,
.reader__flip { position: absolute; inset: 0; }

.reader__kicker {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.reader__prose {
  margin-top: 1.1rem;
  font-family: var(--font-serif);
  font-size: clamp(1rem, 1.4vw, 1.12rem);
  line-height: 1.62;
  color: color-mix(in srgb, var(--book-ink) 92%, var(--book-paper));
  overflow-y: auto;
}

.reader__prose--quiet { font-style: italic; color: var(--book-dim); }

.reader__folio {
  margin-top: auto;
  padding-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--book-dim);
}

/* page-turn layer */
.reader__flip {
  transform-origin: left center;
  backface-visibility: hidden;
  z-index: 4;
  will-change: transform;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.18);
}

.reader__flip-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(15, 12, 8, 0.35), rgba(15, 12, 8, 0.05));
  opacity: 0;
  pointer-events: none;
}

/* Reader controls */
.reader__controls {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--paper);
}

.reader__btn {
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  color: var(--paper);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 99px;
  padding: 0.45rem 1.1rem;
  cursor: pointer;
  transition: color 0.25s, border-color 0.25s, opacity 0.25s;
}

.reader__btn:hover:not(:disabled),
.reader__btn:focus-visible:not(:disabled) { color: var(--accent); border-color: var(--accent); outline: none; }
.reader__btn:disabled { opacity: 0.3; cursor: default; }

.reader__progress { min-width: 9ch; text-align: center; color: var(--paper-dim); }

.reader__back {
  position: absolute;
  top: clamp(4.5rem, 9vh, 5.5rem);
  left: var(--pad);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--paper-dim);
  background: transparent;
  border: 0;
  cursor: pointer;
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  transition: color 0.25s;
}

.reader__back:hover,
.reader__back:focus-visible { color: var(--accent); outline: none; }
.reader__back span { transition: transform 0.25s; }
.reader__back:hover span { transform: translateX(-4px); }

/* ── No-WebGL fallback — flat shelf grid ────── */

.library__fallback {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow-y: auto;
  padding: clamp(5rem, 12vh, 7rem) var(--pad) var(--pad);
}

.library__fallback-genre {
  color: var(--accent);
  margin: 1.8rem 0 0.9rem;
}

.library__fallback-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 15rem), 1fr));
  gap: 1px;
  background: var(--line-soft);
  align-content: start;
  margin-bottom: 1.2rem;
}

.library__fallback-card {
  text-align: left;
  font: inherit;
  color: inherit;
  background: var(--ink);
  border: 0;
  padding: 1.6rem 1.5rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: background 0.3s;
}

.library__fallback-card:hover { background: var(--ink-soft); }
.library__fallback-card .reader__title { color: var(--paper); margin-top: 0; }
.library__fallback-card .reader__author { color: var(--paper-dim); }

/* ── Responsive reader ──────────────────────── */

@media (max-width: 760px) {
  .reader__book {
    flex-direction: column;
    --page-w: min(86vw, 24rem);
    --page-h: auto;
    width: var(--page-w);
    height: auto;
    perspective: none;
  }
  .reader__page { width: 100%; }
  .reader__page--left { border-radius: 4px 4px 0 0; box-shadow: none; }
  .reader__page--right { border-radius: 0 0 4px 4px; box-shadow: none; min-height: 16rem; }
  .reader__page--left::before,
  .reader__page--right::before { display: none; }
  .reader__right { width: 100%; min-height: 16rem; }
  .reader__seal { display: none; }
  .reader__back { top: clamp(4rem, 8vh, 5rem); }
}

/* ── Reduced motion ─────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  .shelf-preview:hover .shelf-preview__spine,
  .shelf-preview:focus-visible .shelf-preview__spine { --lift: 0px; }
}