:root {
  /* ---------- light mode (default) ---------- */
  --bg: #fafaf7;
  --fg: #1f1f23;
  --fg-dim: #4a4a52;
  --fg-mute: #8a8a92;
  --accent: #2c5cff;
  --accent-strong: #1a3fd4;
  --accent-soft: #e4ecff;
  --border: #1f1f23;
  --border-soft: rgba(31, 31, 35, 0.12);
  --panel-bg: #ffffff;
  --shadow: 3px 3px 0 rgba(31, 31, 35, 0.18);
  --shadow-sm: 2px 2px 0 rgba(31, 31, 35, 0.18);
  --radius: 4px;
  --radius-sm: 2px;
  --maxw: 760px;
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "JetBrains Mono", Menlo, Consolas,
    monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121214;
    --fg: #e8e8ec;
    --fg-dim: #a8a8b0;
    --fg-mute: #6e6e78;
    --accent: #6b8cff;
    --accent-strong: #8ea8ff;
    --accent-soft: rgba(107, 140, 255, 0.15);
    --border: #e8e8ec;
    --border-soft: rgba(232, 232, 236, 0.18);
    --panel-bg: #1a1a1e;
    --shadow: 3px 3px 0 rgba(107, 140, 255, 0.25);
    --shadow-sm: 2px 2px 0 rgba(107, 140, 255, 0.25);
  }
}

[data-theme="dark"] {
  --bg: #121214;
  --fg: #e8e8ec;
  --fg-dim: #a8a8b0;
  --fg-mute: #6e6e78;
  --accent: #6b8cff;
  --accent-strong: #8ea8ff;
  --accent-soft: rgba(107, 140, 255, 0.15);
  --border: #e8e8ec;
  --border-soft: rgba(232, 232, 236, 0.18);
  --panel-bg: #1a1a1e;
  --shadow: 3px 3px 0 rgba(107, 140, 255, 0.25);
  --shadow-sm: 2px 2px 0 rgba(107, 140, 255, 0.25);
}

[data-theme="light"] {
  --bg: #fafaf7;
  --fg: #1f1f23;
  --fg-dim: #4a4a52;
  --fg-mute: #8a8a92;
  --accent: #2c5cff;
  --accent-strong: #1a3fd4;
  --accent-soft: #e4ecff;
  --border: #1f1f23;
  --border-soft: rgba(31, 31, 35, 0.12);
  --panel-bg: #ffffff;
  --shadow: 3px 3px 0 rgba(31, 31, 35, 0.18);
  --shadow-sm: 2px 2px 0 rgba(31, 31, 35, 0.18);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--fg);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color 0.15s ease, color 0.15s ease,
    border-color 0.15s ease, box-shadow 0.15s ease;
}

a {
  color: inherit;
  text-decoration: none;
}

strong {
  font-weight: 700;
  color: var(--fg);
}

/* ---------- background ---------- */
.bg-grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.04;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='8' height='8'><circle cx='1' cy='1' r='0.7' fill='%231f1f23'/></svg>");
  background-size: 8px 8px;
  will-change: transform;
  transition: transform 0.6s ease-out;
}

@media (prefers-color-scheme: dark) {
  .bg-grain {
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='8' height='8'><circle cx='1' cy='1' r='0.7' fill='%23e8e8ec'/></svg>");
  }
}

[data-theme="dark"] .bg-grain {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='8' height='8'><circle cx='1' cy='1' r='0.7' fill='%23e8e8ec'/></svg>");
}

[data-theme="light"] .bg-grain {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='8' height='8'><circle cx='1' cy='1' r='0.7' fill='%231f1f23'/></svg>");
}

/* ---------- layout ---------- */
main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 56px 24px 96px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}
main > section {
  min-width: 0;
}

/* ---------- panel ---------- */
.glass {
  background: var(--panel-bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
  transition: background-color 0.15s ease, border-color 0.15s ease,
    box-shadow 0.15s ease, color 0.15s ease;
}

@media (max-width: 560px) {
  .glass {
    padding: 26px 22px;
  }
  main {
    padding: 32px 16px 72px;
  }
}

@media (max-width: 480px) {
  .title {
    font-size: clamp(40px, 12vw, 72px);
  }
  main {
    padding: 24px 16px 72px;
  }
}

/* ---------- hero ---------- */
.hero-inner {
  text-align: center;
  padding-top: 44px;
  padding-bottom: 44px;
}

.avatar {
  display: block;
  width: 88px;
  height: 88px;
  border-radius: 50%;
  margin: 0 auto 18px;
  border: 1.5px solid var(--border);
  background: var(--panel-bg);
  box-shadow: var(--shadow-sm);
  object-fit: cover;
}

.eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-mute);
  letter-spacing: 0.04em;
  text-transform: lowercase;
  animation: blink 1.6s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.title {
  margin: 6px 0 14px;
  font-size: clamp(52px, 10vw, 92px);
  line-height: 1.02;
  letter-spacing: -0.04em;
  font-weight: 700;
  color: var(--accent-strong);
}

.lede {
  margin: 0 auto 26px;
  max-width: 50ch;
  color: var(--fg-dim);
}

.cta-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- buttons ---------- */
.btn,
.audio-toggle {
  position: relative;
  overflow: hidden;
}
.btn::after,
.audio-toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0;
  transform: translate(-50%, -50%) scale(0);
  pointer-events: none;
}
.btn:active::after,
.audio-toggle:active::after {
  animation: btn-ripple 0.45s ease-out;
}
@keyframes btn-ripple {
  0%   { opacity: 0.32; transform: translate(-50%, -50%) scale(0); }
  100% { opacity: 0;    transform: translate(-50%, -50%) scale(36); }
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  border: 1.5px solid var(--border);
  background: var(--panel-bg);
  color: var(--fg);
  box-shadow: var(--shadow);
  transition: transform 0.1s ease, box-shadow 0.1s ease,
    background-color 0.12s ease, color 0.12s ease, border-color 0.12s ease;
  text-decoration: none;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 rgba(31, 31, 35, 0.18);
}

.btn:active {
  transform: translate(1px, 1px);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .btn:hover {
  box-shadow: 5px 5px 0 rgba(107, 140, 255, 0.25);
}
@media (prefers-color-scheme: dark) {
  .btn:hover {
    box-shadow: 5px 5px 0 rgba(107, 140, 255, 0.25);
  }
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-strong);
  color: #fff;
}

.btn-ghost {
  background: var(--panel-bg);
  color: var(--fg);
}

.btn-ghost:hover {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

/* ---------- sections ---------- */
.section-title {
  margin: 0 0 12px;
  font-size: 26px;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--fg);
  text-transform: lowercase;
  position: relative;
  padding-bottom: 10px;
}
.section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 3px;
  background: var(--accent);
  transition: width 0.6s cubic-bezier(.2,.7,.2,1) 0.1s;
}
.reveal.is-visible .section-title::after {
  width: 100%;
}

.about-inner p {
  color: var(--fg-dim);
  margin: 0 0 14px;
}

.about-inner p:last-child {
  margin-bottom: 0;
}

/* ---------- find me / socials ---------- */
.find-inner p {
  color: var(--fg-dim);
  margin: 0 0 22px;
}

.socials {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.social {
  display: grid;
  grid-template-columns: 36px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel-bg);
  box-shadow: var(--shadow-sm);
  transition: transform 0.1s ease, box-shadow 0.1s ease,
    border-color 0.12s ease, color 0.12s ease, background-color 0.12s ease;
  color: var(--fg);
}

.social:hover {
  transform: translate(-2px, -2px);
  box-shadow: 3px 3px 0 rgba(31, 31, 35, 0.18);
  border-color: var(--accent);
  color: var(--accent-strong);
}

.social:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 rgba(31, 31, 35, 0.18);
}

[data-theme="dark"] .social:hover {
  box-shadow: 3px 3px 0 rgba(107, 140, 255, 0.25);
}
[data-theme="dark"] .social:active {
  box-shadow: 1px 1px 0 rgba(107, 140, 255, 0.25);
}
@media (prefers-color-scheme: dark) {
  .social:hover {
    box-shadow: 3px 3px 0 rgba(107, 140, 255, 0.25);
  }
  .social:active {
    box-shadow: 1px 1px 0 rgba(107, 140, 255, 0.25);
  }
}

.social-icon {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent-strong);
  border: 1px solid var(--border);
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.social-github:hover .social-icon {
  background: #181717;
  color: #ffffff;
  border-color: #181717;
}
.social-telegram:hover .social-icon {
  background: #26a5e4;
  color: #ffffff;
  border-color: #26a5e4;
}
.social-instagram:hover .social-icon {
  background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
  color: #ffffff;
  border-color: transparent;
}

.social-text {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.social-label {
  font-size: 14px;
  font-weight: 600;
  color: inherit;
}

.social-handle {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-mute);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.social:hover .social-handle {
  color: var(--accent-strong);
}

.social-arrow {
  font-size: 18px;
  color: var(--fg-mute);
  transition: color 0.12s ease, transform 0.12s ease;
}

.social:hover .social-arrow {
  color: var(--accent-strong);
  transform: translate(2px, -2px);
}

/* ---------- footer ---------- */
.site-footer {
  text-align: center;
  padding: 24px 16px 40px;
  color: var(--fg-mute);
  font-size: 12px;
  font-family: var(--font-mono);
}

/* ---------- focus ---------- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.btn:focus-visible,
.social:focus-visible,
.theme-toggle:focus-visible {
  outline-offset: 3px;
}

/* ---------- top bar (theme + audio toggles) ---------- */
.top-bar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
  min-height: 54px;
}

@media (max-width: 560px) {
  .top-bar {
    min-height: 48px;
  }
  .top-bar .theme-toggle,
  .top-bar .audio-toggle {
    position: static;
    width: 36px;
    height: 36px;
  }
}

/* ---------- theme toggle ---------- */
.theme-toggle {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 20;
  width: 38px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  border: 1.5px solid var(--border);
  background: var(--panel-bg);
  color: var(--fg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  padding: 0;
  transition: transform 0.1s ease, box-shadow 0.1s ease,
    background-color 0.12s ease, color 0.12s ease, border-color 0.12s ease;
}

.theme-toggle:hover {
  transform: translate(-2px, -2px);
  box-shadow: 3px 3px 0 rgba(31, 31, 35, 0.18);
  color: var(--accent-strong);
}

[data-theme="dark"] .theme-toggle:hover {
  box-shadow: 3px 3px 0 rgba(107, 140, 255, 0.25);
}
@media (prefers-color-scheme: dark) {
  .theme-toggle:hover {
    box-shadow: 3px 3px 0 rgba(107, 140, 255, 0.25);
  }
}

.theme-toggle:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 rgba(31, 31, 35, 0.18);
}

[data-theme="dark"] .theme-toggle:active {
  box-shadow: 1px 1px 0 rgba(107, 140, 255, 0.25);
}
@media (prefers-color-scheme: dark) {
  .theme-toggle:active {
    box-shadow: 1px 1px 0 rgba(107, 140, 255, 0.25);
  }
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  display: block;
}

@media (max-width: 560px) {
  .theme-toggle {
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
  }
}

/* ---------- typing cursor ---------- */
.lede-cursor {
  display: inline;
  animation: blink 1s step-end infinite;
  color: var(--accent-strong);
  font-weight: 400;
  margin-left: 1px;
}
.lede-cursor.done {
  /* keep cursor visible and blinking after typing finishes */
  opacity: 1;
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}

/* ---------- enter overlay ---------- */
.enter-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: #000;
  color: #fafaf7;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
.enter-overlay.is-leaving {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.enter-overlay__text {
  font-family: var(--font-mono);
  font-size: clamp(14px, 2.2vw, 20px);
  letter-spacing: 0.08em;
  text-transform: lowercase;
  color: #fafaf7;
  opacity: 0.9;
  margin: 0;
  animation: enter-pulse 1.6s ease-in-out infinite;
}
.enter-overlay__text::after {
  content: "_";
  margin-left: 0.25ch;
  animation: enter-blink 1s step-end infinite;
}
@keyframes enter-pulse {
  0%, 100% { opacity: 0.55; }
  50%      { opacity: 0.95; }
}
@keyframes enter-blink {
  50% { opacity: 0; }
}

body.is-entering main,
body.is-entering .bg-grain {
  filter: blur(8px);
  transition: filter 0.5s ease;
}
body.is-entered main,
body.is-entered .bg-grain {
  filter: none;
}

/* ---------- audio mute toggle ---------- */
.audio-toggle {
  position: fixed;
  top: 16px;
  right: 64px;
  z-index: 20;
  width: 38px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  border: 1.5px solid var(--border);
  background: var(--panel-bg);
  color: var(--fg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  padding: 0;
  font: inherit;
  font-size: 18px;
  line-height: 1;
  transition: transform 0.1s ease, box-shadow 0.1s ease,
    background-color 0.12s ease, color 0.12s ease, border-color 0.12s ease;
}
.audio-toggle[hidden] { display: none; }
.audio-toggle:hover {
  transform: translate(-2px, -2px);
  box-shadow: 3px 3px 0 rgba(31, 31, 35, 0.18);
  color: var(--accent-strong);
}
[data-theme="dark"] .audio-toggle:hover {
  box-shadow: 3px 3px 0 rgba(107, 140, 255, 0.25);
}
@media (prefers-color-scheme: dark) {
  .audio-toggle:hover {
    box-shadow: 3px 3px 0 rgba(107, 140, 255, 0.25);
  }
}
.audio-toggle:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 rgba(31, 31, 35, 0.18);
}
[data-theme="dark"] .audio-toggle:active {
  box-shadow: 1px 1px 0 rgba(107, 140, 255, 0.25);
}
@media (prefers-color-scheme: dark) {
  .audio-toggle:active {
    box-shadow: 1px 1px 0 rgba(107, 140, 255, 0.25);
  }
}

.audio-toggle.is-playing {
  color: var(--accent-strong);
  animation: audio-playing-pulse 1.6s ease-in-out infinite;
}
@keyframes audio-playing-pulse {
  0%, 100% {
    box-shadow: var(--shadow-sm), 0 0 0 0 rgba(44, 92, 255, 0);
  }
  50% {
    box-shadow: var(--shadow-sm), 0 0 0 6px rgba(44, 92, 255, 0.18);
  }
}

@media (max-width: 560px) {
  .audio-toggle {
    top: 12px;
    right: 56px;
    width: 36px;
    height: 36px;
  }
}

/* ---------- repo shelf ---------- */
.shelf-inner p {
  color: var(--fg-dim);
  margin: 0 0 22px;
}
.shelf-footer {
  margin-top: 18px !important;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-mute) !important;
}
.shelf-footer a {
  color: var(--accent-strong);
  text-decoration: underline;
  text-decoration-color: var(--border-soft);
  text-underline-offset: 3px;
}
.shelf-footer a:hover {
  text-decoration-color: var(--accent);
}

.bookshelf {
  display: flex;
  align-items: flex-end;
  gap: 0;
  padding: 28px 14px 0;
  border-bottom: 6px solid #5a3a1e;
  box-shadow: 0 6px 0 -1px #3a2410;
  overflow: visible;
  min-height: 180px;
  position: relative;
}
@media (prefers-color-scheme: light) {
  .bookshelf {
    border-bottom-color: #8a6a4a;
    box-shadow: 0 6px 0 -1px #6a4a2a;
  }
}
[data-theme="light"] .bookshelf {
  border-bottom-color: #8a6a4a;
  box-shadow: 0 6px 0 -1px #6a4a2a;
}

.book {
  position: relative;
  width: 250px;
  height: 160px;
  padding-top: 14px;
  display: block;
  text-decoration: none;
  color: inherit;
  transform-origin: bottom left;
  transition:
    transform 0.28s cubic-bezier(.2,.7,.2,1),
    filter 0.28s ease;
  filter: none;
  will-change: transform;
  flex: 0 0 auto;
}

.book-spine {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 44px;
  height: 140px;
  background: var(--spine-color, var(--accent));
  border: 1.5px solid var(--border);
  border-radius: 2px 2px 0 0;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px 4px;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--fg);
  overflow: hidden;
  transition: box-shadow 0.28s ease;
}
.book-spine-title {
  white-space: nowrap;
  text-transform: lowercase;
}

.book-cover {
  position: absolute;
  top: 14px;
  left: 44px;
  width: 180px;
  height: 140px;
  background: var(--panel-bg);
  border: 1.5px solid var(--border);
  border-radius: 2px;
  box-shadow: var(--shadow);
  padding: 12px;
  display: grid;
  align-content: start;
  gap: 6px;
  opacity: 0;
  transform: translateX(-8px) rotateY(-12deg);
  transform-origin: left center;
  transition:
    opacity 0.2s ease 0.05s,
    transform 0.28s cubic-bezier(.2,.7,.2,1);
  pointer-events: none;
}
.book-cover-name {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-strong);
  text-transform: lowercase;
}
.book-cover-desc {
  font-size: 12px;
  color: var(--fg-dim);
  line-height: 1.4;
}
.book-cover-stats {
  display: flex;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-mute);
  align-items: center;
}
.book-cover-stats .stat {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}
.book-cover-cta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-mute);
  margin-top: auto;
}

.book:hover,
.book:focus-visible {
  transform: translateX(28px) translateY(-6px) rotate(-4deg);
  z-index: 2;
}
.book:hover .book-spine,
.book:focus-visible .book-spine {
  box-shadow:
    var(--shadow-sm),
    0 6px 16px -2px rgba(44, 92, 255, 0.35);
}
.book:hover .book-cover,
.book:focus-visible .book-cover {
  opacity: 1;
  transform: translateX(0) rotateY(0);
}
.book:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

@media (max-width: 560px) {
  .bookshelf {
    flex-direction: column;
    padding: 16px;
    min-height: auto;
    gap: 0;
    border-bottom: none;
    box-shadow: none;
  }
  .book {
    width: 100%;
    height: auto;
    padding: 0;
    margin-bottom: 4px;
    display: flex;
    align-items: stretch;
  }
  .book:last-child {
    margin-bottom: 0;
  }
  .book-spine {
    position: relative;
    left: auto;
    bottom: auto;
    width: 44px;
    height: auto;
    min-height: 120px;
  }
  .book-cover {
    position: relative;
    top: auto;
    left: auto;
    width: auto;
    height: auto;
    flex: 1;
    padding: 10px 12px;
    opacity: 1;
    transform: none;
    pointer-events: auto;
    border-left: none;
    border-radius: 0 2px 2px 0;
  }
  .book:hover,
  .book:focus-visible {
    transform: none;
  }
  .book:hover .book-cover,
  .book:focus-visible .book-cover {
    opacity: 1;
    transform: none;
    box-shadow: var(--shadow-sm);
  }
  .book:hover .book-spine,
  .book:focus-visible .book-spine {
    box-shadow: var(--shadow-sm);
  }
}

@media (prefers-reduced-motion: reduce) {
  .book,
  .book-cover {
    transition: opacity 0.2s ease, transform 0.2s ease;
  }
  .book:hover,
  .book:focus-visible {
    transform: translateX(28px);
  }
  .book:hover .book-cover,
  .book:focus-visible .book-cover {
    transform: translateX(0);
  }
}

/* ---------- scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity 0.55s ease,
    transform 0.55s cubic-bezier(.2,.7,.2,1);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal.is-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- title char reveal ---------- */
.title-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(8px);
  animation: title-char-in 0.5s cubic-bezier(.2,.7,.2,1) forwards;
}
@keyframes title-char-in {
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  .title-char {
    opacity: 1;
    transform: none;
    animation: none;
  }
}