/* =========================================================
   rougvie.com — main landing, EDGELANDS skin
   New Topographics / documentary aesthetic: weathered concrete,
   rust/oxide, lichen, drifting fog. The full maker-&-leader
   landing, dressed in patina.
   Slow, weather-like motion; reduced-motion fully guarded.
   ========================================================= */

:root {
  /* --- weathered palette --- */
  --concrete:      #b6b1a8;   /* fog/concrete base */
  --concrete-deep: #9a958c;
  --paper:         #cdc8bd;   /* faded board */
  --ink:           #2b2926;   /* weathered near-black */
  --ink-soft:      #4a4640;
  --mute:          #6f6a62;   /* lichen-grey text */
  --rust:          #9a5a3a;   /* oxide / corten — the accent */
  --rust-deep:     #74402a;
  --lichen:        #7f8466;   /* dried moss green */
  --lichen-deep:   #5f654b;
  --fog:           #d7d3c9;
  --line:          rgba(43, 41, 38, 0.16);
  --line-strong:   rgba(43, 41, 38, 0.32);

  --bg:            var(--concrete);
  --fg:            var(--ink);

  --display: "Newsreader", Georgia, "Times New Roman", serif;
  --body:    "Spectral", Georgia, serif;
  --mono:    "Spline Sans Mono", ui-monospace, "SFMono-Regular", monospace;

  --wrap: 76rem;
  --gutter: clamp(1.25rem, 5vw, 4rem);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--body);
  font-weight: 400;
  color: var(--fg);
  /* layered concrete: soft tonal mottling, no flat fill */
  background:
    radial-gradient(120% 80% at 18% -10%, rgba(127,132,102,0.10), transparent 55%),
    radial-gradient(110% 70% at 92% 8%, rgba(154,90,58,0.08), transparent 50%),
    radial-gradient(140% 120% at 50% 110%, rgba(43,41,38,0.16), transparent 60%),
    linear-gradient(180deg, var(--fog) 0%, var(--concrete) 45%, var(--concrete-deep) 100%);
  background-attachment: fixed;
  line-height: 1.6;
  font-size: clamp(1rem, 0.97rem + 0.18vw, 1.075rem);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  position: relative;
}

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

/* ---------- atmospheric layers ---------- */

/* fine, desaturated film grain via SVG fractal noise */
.grain {
  position: fixed; inset: 0; z-index: 9000;
  pointer-events: none; opacity: 0.16; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* drifting fog band — slow, weather-like */
.fog {
  position: fixed; inset: -20% -10% auto -10%; height: 60vh; z-index: 1;
  pointer-events: none; opacity: 0.5; mix-blend-mode: screen;
  background:
    radial-gradient(60% 50% at 30% 40%, rgba(215,211,201,0.55), transparent 70%),
    radial-gradient(50% 45% at 75% 30%, rgba(182,177,168,0.45), transparent 70%);
  filter: blur(8px);
  animation: drift 64s linear infinite;
}
@keyframes drift {
  0%   { transform: translate3d(-4%, 0, 0) scale(1.05); }
  50%  { transform: translate3d(4%, 1.5%, 0) scale(1.12); }
  100% { transform: translate3d(-4%, 0, 0) scale(1.05); }
}

/* vignette — quiet edge darkening */
.vignette {
  position: fixed; inset: 0; z-index: 8000; pointer-events: none;
  background: radial-gradient(130% 100% at 50% 40%, transparent 55%, rgba(43,41,38,0.28) 100%);
}

@media (prefers-reduced-motion: reduce) {
  .fog { animation: none; }
}

/* ---------- layout shell ---------- */
.wrap {
  width: min(var(--wrap), 100% - var(--gutter) * 2);
  margin-inline: auto;
}
.section-pad { padding-block: clamp(4rem, 12vh, 8rem); position: relative; z-index: 2; }
section { position: relative; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.6em;
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.28em;
  text-transform: uppercase; color: var(--rust);
  margin-bottom: 1.4rem;
  padding-bottom: 0.4rem; border-bottom: 1px solid var(--line-strong);
}
h1, h2, h3 { font-family: var(--display); font-weight: 400; }
em { font-style: italic; color: var(--rust-deep); }

/* ====================== NAV ====================== */
.nav {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(6px);
  background: linear-gradient(180deg, rgba(215,211,201,0.78), rgba(215,211,201,0.0));
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: 1rem;
}
.brand {
  display: inline-flex; align-items: baseline; gap: 0.5rem;
  color: var(--ink);
}
.brand-mark {
  width: 14px; height: 14px; align-self: center;
  border: 1.5px solid var(--ink); border-radius: 50%;
  position: relative; flex: none;
}
.brand-mark::before, .brand-mark::after {
  content: ""; position: absolute; background: var(--ink);
  left: 50%; top: 50%; transform: translate(-50%,-50%);
}
.brand-mark::before { width: 1.5px; height: 20px; }
.brand-mark::after  { width: 20px; height: 1.5px; }
.brand-text {
  font-family: var(--mono); font-size: 0.92rem; font-weight: 500;
  letter-spacing: 0.22em; position: relative;
}
.brand-sub {
  font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.3em;
  text-transform: uppercase; color: var(--rust);
}
.nav-links { display: flex; align-items: center; gap: clamp(1rem, 3vw, 2.2rem); }
.nav-links a {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--mute);
  transition: color 0.4s var(--ease);
}
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  color: var(--ink) !important;
  border: 1px solid var(--line-strong);
  padding: 0.5rem 0.9rem !important;
}
.nav-cta:hover { border-color: var(--rust); color: var(--rust) !important; }
@media (max-width: 680px) {
  .nav-links .hide-sm { display: none; }
}

/* ====================== HERO ====================== */
.hero {
  position: relative; z-index: 2;
  padding-block: clamp(4rem, 11vh, 8rem) clamp(2.5rem, 6vh, 4rem);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
@media (max-width: 880px) { .hero-grid { grid-template-columns: 1fr; } }

.coord {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--mute); margin-bottom: 1.5rem;
}
.hero h1 {
  font-size: clamp(2.7rem, 8vw, 6rem);
  line-height: 0.98; letter-spacing: -0.02em;
  margin-block: 0 1.7rem;
  color: var(--ink);
  text-wrap: balance;
  font-optical-sizing: auto;
}
.hero h1 em { font-style: italic; }
.hero-lede {
  font-size: clamp(1.05rem, 1rem + 0.4vw, 1.3rem); line-height: 1.7;
  max-width: 48ch; color: var(--ink-soft); margin-bottom: 2.3rem;
}
.hero-lede strong { font-weight: 500; color: var(--ink); }

.hero-actions {
  display: flex; flex-wrap: wrap; gap: 1rem; align-items: center;
}
.btn {
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.12em;
  text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 0.6rem;
  padding: 0.9rem 1.6rem; color: var(--paper);
  background: var(--ink); border: 1px solid var(--ink);
  transition: transform 0.4s var(--ease), background 0.4s var(--ease), color 0.4s var(--ease), border-color 0.4s var(--ease);
}
.btn .arr { transition: transform 0.4s var(--ease); }
.btn:hover { background: var(--rust-deep); border-color: var(--rust-deep); }
.btn:hover .arr { transform: translateX(4px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { background: transparent; color: var(--rust); border-color: var(--rust); }

/* hero marker — an edgelands sign, edges feathered into the page */
.hero-card {
  position: relative;
  aspect-ratio: 868 / 1300;
  background: transparent;
  overflow: visible;
}
/* soft vignette layer sitting under the photo, so the fade reads as weathered ground */
.hero-card::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: radial-gradient(120% 100% at 50% 42%, transparent 52%, rgba(43,41,38,0.10) 100%);
  pointer-events: none;
}
.hero-card .plate-id {
  position: absolute; top: 6px; right: 8px; z-index: 4;
  font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.2em;
  color: var(--ink-soft); opacity: 0.7;
}
.hero-card img {
  position: relative; z-index: 2;
  width: 100%; height: 100%;
  object-fit: cover; object-position: center center;
  filter: grayscale(0.5) contrast(1.04) sepia(0.07);
  mix-blend-mode: multiply;
  opacity: 0.97;
  /* feather every edge to transparent — no hard rectangle.
     Layered linear gradients (one per axis) intersected with a radial vignette. */
  -webkit-mask-image:
    linear-gradient(to right,  transparent 0, #000 11%, #000 89%, transparent 100%),
    linear-gradient(to bottom, transparent 0, #000 9%,  #000 91%, transparent 100%),
    radial-gradient(118% 100% at 50% 45%, #000 58%, transparent 100%);
          mask-image:
    linear-gradient(to right,  transparent 0, #000 11%, #000 89%, transparent 100%),
    linear-gradient(to bottom, transparent 0, #000 9%,  #000 91%, transparent 100%),
    radial-gradient(118% 100% at 50% 45%, #000 58%, transparent 100%);
  -webkit-mask-composite: source-in;       /* Safari/WebKit */
          mask-composite: intersect;       /* standard */
}
@media (max-width: 880px) {
  .hero-card { max-width: 320px; }
}

/* horizon ledger ticker */
.ledger {
  margin-top: clamp(3rem, 8vh, 5rem);
  border-block: 1px solid var(--line);
  overflow: hidden; white-space: nowrap;
  background: rgba(43,41,38,0.03);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}
.ledger-track {
  display: inline-flex; will-change: transform;
  animation: scroll-ledger 48s linear infinite;
}
.ledger-track span {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--mute);
  padding: 0.9rem 0; flex-shrink: 0;
}
@keyframes scroll-ledger { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .ledger-track { animation: none; } }

/* ====================== SECTION HEAD ====================== */
.section-head { max-width: 56rem; margin-bottom: clamp(2.5rem, 6vh, 4rem); }
.section-head .eyebrow { margin-bottom: 1.3rem; }
.section-head h2 {
  font-size: clamp(2rem, 5vw, 3.4rem); line-height: 1.04;
  letter-spacing: -0.015em; margin-bottom: 1.3rem; color: var(--ink);
  text-wrap: balance;
}
.section-head h2 em { font-style: italic; }
.section-head p {
  font-size: clamp(1.02rem, 1.05rem + 0.3vw, 1.2rem); line-height: 1.7;
  max-width: 52ch; color: var(--ink-soft); font-style: italic;
}

/* ====================== WORLDS ====================== */
.worlds-section { border-top: 1px solid var(--line); }
.worlds {
  display: grid; grid-template-columns: repeat(12, 1fr);
  gap: clamp(1rem, 2.2vw, 1.6rem);
}
.world {
  position: relative; overflow: hidden;
  padding: clamp(1.5rem, 3vw, 2.4rem);
  border: 1px solid var(--line);
  background: linear-gradient(170deg, rgba(205,200,189,0.4), rgba(154,149,140,0.12));
  transition: border-color 0.5s var(--ease), transform 0.5s var(--ease);
  display: flex; flex-direction: column; min-height: 230px;
}
.world::after {
  /* oxide stain that creeps in on hover — entropy */
  content: ""; position: absolute; inset: auto -30% -40% auto;
  width: 60%; height: 70%;
  background: radial-gradient(circle, rgba(154,90,58,0.18), transparent 70%);
  opacity: 0; transition: opacity 0.6s var(--ease);
}
.world:hover { border-color: var(--line-strong); transform: translateY(-3px); }
.world:hover::after { opacity: 1; }

.world .w-num {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--rust); display: block;
}
.world h3 {
  font-size: clamp(1.4rem, 2.5vw, 1.95rem); line-height: 1.08;
  margin-block: 0.9rem 0.6rem; color: var(--ink);
}
.world h3 .kicker {
  display: block;
  font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--rust);
  margin-bottom: 0.5rem; font-weight: 500;
}
.world p { color: var(--ink-soft); font-size: 1.0rem; line-height: 1.65; flex: 1; }
.world .w-links {
  display: flex; flex-wrap: wrap; gap: 0.6rem 1.4rem;
  margin-top: 1.4rem; position: relative; z-index: 1;
}
.world .w-links a {
  font-family: var(--mono); font-size: 0.73rem; letter-spacing: 0.05em;
  color: var(--ink);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 0.15rem;
  transition: color 0.4s var(--ease), border-color 0.4s var(--ease);
}
.world .w-links a:hover { color: var(--rust); border-color: var(--rust); }

/* spans (12-col, same as ember structure) */
.span-7 { grid-column: span 7; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-12 { grid-column: span 12; }
@media (max-width: 860px) {
  .worlds { grid-template-columns: 1fr; }
  .span-7, .span-5, .span-6, .span-12 { grid-column: 1 / -1; }
}

/* ====================== WRITING ====================== */
.writing-section { border-top: 1px solid var(--line); }
.writing-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: clamp(1rem, 2.2vw, 1.6rem);
}
@media (max-width: 720px) { .writing-grid { grid-template-columns: 1fr; } }
.book {
  position: relative; overflow: hidden;
  padding: clamp(1.6rem, 3vw, 2.4rem);
  border: 1px solid var(--line);
  background: linear-gradient(170deg, rgba(205,200,189,0.4), rgba(154,149,140,0.12));
}
.book .spine {
  position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: linear-gradient(var(--lichen-deep), var(--rust));
}
.book .status-pill {
  font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--lichen-deep);
  border: 1px solid var(--line-strong);
  padding: 0.3rem 0.7rem; display: inline-block; margin-bottom: 1.1rem;
}
.book h3 {
  font-style: italic; font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1.08; color: var(--ink);
}
.book p { color: var(--ink-soft); margin-top: 0.8rem; font-size: 1.0rem; line-height: 1.65; }

/* ====================== PHOTOGRAPHY (modest real-photo gallery) ====================== */
.photography { border-top: 1px solid var(--line); }
.photo-meta {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.8rem 1.6rem;
  margin-bottom: 1.6rem;
}
.photo-handle {
  font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.12em;
  color: var(--rust);
}
.photo-bio {
  font-style: italic; font-size: clamp(1.02rem, 1.05rem + 0.3vw, 1.22rem);
  line-height: 1.7; max-width: 56ch; color: var(--ink-soft);
}
.photo-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: clamp(0.8rem, 2vw, 1.4rem);
  margin-top: clamp(1.8rem, 4vh, 2.6rem);
}
@media (max-width: 760px) { .photo-grid { grid-template-columns: repeat(2, 1fr); } }
.photo-plate { margin: 0; position: relative; }
.photo-plate .photo-wrap {
  position: relative; overflow: hidden;
  border: 1px solid var(--line-strong);
  aspect-ratio: 1 / 1;
  background: linear-gradient(160deg, var(--paper), var(--concrete-deep));
  box-shadow: inset 0 0 40px rgba(43,41,38,0.12);
}
.photo-plate img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(0.18) contrast(1.03);
  transition: filter 0.7s var(--ease), transform 0.9s var(--ease);
}
.photo-plate:hover img { filter: grayscale(0) contrast(1.05); transform: scale(1.02); }
.photo-plate .photo-id {
  position: absolute; top: 10px; right: 12px; z-index: 2;
  font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.18em;
  color: var(--fog); mix-blend-mode: difference; opacity: 0.85;
}
.photo-cta {
  margin-top: clamp(1.6rem, 4vh, 2.4rem);
  display: flex; flex-wrap: wrap; gap: 1rem 2.4rem; align-items: baseline;
}
.handle-link {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.1em;
  color: var(--rust);
  border-bottom: 1px solid var(--rust);
  padding-bottom: 0.2rem;
  transition: gap 0.4s var(--ease), color 0.4s var(--ease);
}
.handle-link:hover { gap: 0.85rem; color: var(--rust-deep); }

/* ====================== PHILOSOPHY ("The tools I think with") ====================== */
.philosophy {
  border-top: 1px solid var(--line);
  background: radial-gradient(80% 60% at 100% 0%, rgba(127,132,102,0.10), transparent 60%);
}
.phil-kicker { font-style: italic; color: var(--ink-soft); max-width: 52ch; line-height: 1.7; }

/* the working set — one calm wall, lots of breathing room */
.phil-wall {
  list-style: none;
  max-width: 740px; margin: clamp(2.5rem, 6vh, 4rem) auto 0;
  display: flex; flex-direction: column;
}
.phil-line {
  border-top: 1px solid var(--line-strong);
  padding-block: clamp(1.6rem, 4vh, 2.4rem);
  transition: background 0.5s var(--ease);
}
.phil-line:hover { background: rgba(43,41,38,0.035); }
.phil-line blockquote {
  font-family: var(--display); font-weight: 300;
  font-size: clamp(1.15rem, 1.05rem + 0.7vw, 1.6rem);
  line-height: 1.3; color: var(--ink); text-wrap: pretty;
}
.phil-line cite {
  display: block; margin-top: 0.8rem; font-style: normal;
  font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em;
  color: var(--mute);
}

/* the divider before the anchor */
.phil-div {
  text-align: center; color: var(--rust); opacity: 0.85;
  font-size: 1rem; margin: clamp(2.5rem, 6vh, 4rem) auto;
}

/* the anchor — set apart, most space, largest type */
.phil-anchor {
  max-width: 740px; margin: 0 auto;
  border-left: 3px solid var(--rust);
  padding: clamp(1.8rem, 5vh, 3rem) 0 clamp(1.8rem, 5vh, 3rem) clamp(1.4rem, 3vw, 2.2rem);
}
.phil-anchor blockquote {
  font-family: var(--display); font-weight: 300;
  font-size: clamp(1.5rem, 1.2rem + 1.7vw, 2.5rem); line-height: 1.3;
  color: var(--ink); text-wrap: pretty;
}
.phil-anchor cite {
  display: block; margin-top: 1.1rem; font-style: normal;
  font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.06em;
  color: var(--rust);
}
.phil-anchor cite em { color: var(--rust-deep); font-style: italic; }

/* ====================== ELSEWHERE (link rail) ====================== */
.elsewhere {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  position: relative; z-index: 2;
}
.rail {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 0;
}
.rail a {
  padding: 1.5rem clamp(1rem, 2.5vw, 1.8rem);
  border: 1px solid var(--line); margin: -0.5px;
  display: flex; flex-direction: column; gap: 0.4rem;
  transition: background 0.4s var(--ease);
}
.rail a:hover { background: rgba(43,41,38,0.04); }
.rail a .r-name {
  font-family: var(--display); font-size: 1.2rem;
  display: flex; align-items: center; justify-content: space-between; color: var(--ink);
}
.rail a .r-name .ar { color: var(--mute); transition: transform 0.3s var(--ease), color 0.3s; }
.rail a:hover .r-name .ar { transform: translate(3px, -3px); color: var(--rust); }
.rail a .r-desc {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.05em;
  text-transform: uppercase; color: var(--mute);
}

/* ====================== FOOTER ====================== */
.footer {
  position: relative; z-index: 2;
  background: linear-gradient(180deg, transparent, rgba(43,41,38,0.10));
  padding-block: clamp(3.5rem, 9vh, 6rem) 2.5rem;
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr;
  gap: 3rem; align-items: end;
}
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr; gap: 2rem; } }
.footer-grid .big {
  font-family: var(--display); font-weight: 300;
  font-size: clamp(1.8rem, 4.4vw, 3rem); line-height: 1.12;
  letter-spacing: -0.01em; color: var(--ink); max-width: 24ch;
}
.footer-grid .big a {
  color: var(--rust); border-bottom: 2px solid var(--rust);
  transition: color 0.3s, border-color 0.3s;
}
.footer-grid .big a:hover { color: var(--rust-deep); border-color: var(--rust-deep); }
.foot-meta {
  display: flex; flex-direction: column; gap: 0.5rem;
  font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--mute);
}
.foot-bar {
  margin-top: 3rem; padding-top: 1.4rem;
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 1rem;
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--mute);
}
.foot-survey { color: var(--lichen-deep); }

/* ====================== COLLAPSIBLE SECTIONS (details/summary) ====================== */

/* World cards collapsible */
.world-collapsible {
  display: flex !important;
  flex-direction: column;
  padding: 0 !important;
}
.world-collapsible summary {
  display: flex;
  flex-direction: column;
  padding: clamp(1.5rem, 3vw, 2.4rem);
  cursor: pointer;
  list-style: none;
  position: relative;
}
.world-collapsible summary::-webkit-details-marker { display: none; }
.world-summary h3 { margin-block: 0.9rem 0 !important; }
.world-detail {
  padding: 0 clamp(1.5rem, 3vw, 2.4rem) clamp(1.5rem, 3vw, 2.4rem);
  border-top: 1px solid var(--line);
}
.world-collapsible[open] summary h3 { margin-bottom: 0.6rem; }

/* Book cards collapsible */
.book-collapsible {
  display: flex !important;
  flex-direction: column;
  padding: 0 !important;
}
.book-collapsible summary {
  display: flex;
  flex-direction: column;
  padding: clamp(1.6rem, 3vw, 2.4rem);
  cursor: pointer;
  list-style: none;
}
.book-collapsible summary::-webkit-details-marker { display: none; }
.book-summary h3 { margin: 0 !important; color: var(--ink); }
.book-summary h3 a { color: inherit; border-bottom: 1px solid var(--line-strong); transition: color 0.4s var(--ease), border-color 0.4s var(--ease); }
.book-summary h3 a:hover { color: var(--rust); border-color: var(--rust); }
.book-detail {
  padding: 0 clamp(1.6rem, 3vw, 2.4rem) clamp(1.6rem, 3vw, 2.4rem);
  border-top: 1px solid var(--line);
}
.book-detail p { margin-top: 0; }
.book-collapsible[open] { min-height: auto; }

/* Philosophy collapsible */
.phil-details {
  position: relative;
}
.phil-summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--body);
  font-size: clamp(1.05rem, 1rem + 0.4vw, 1.3rem);
  line-height: 1.7;
  color: var(--ink-soft);
  padding: 0.6rem 0;
  margin-bottom: 1.5rem;
}
.phil-summary::-webkit-details-marker { display: none; }
.phil-summary:hover { color: var(--ink); }
.phil-detail-body { margin-top: 1.5rem; }

/* Photography collapsible */
.photo-collapsible {
  display: flex !important;
  flex-direction: column;
  padding: 0 !important;
}
.photo-summary {
  cursor: pointer;
  list-style: none;
  padding: 0;
  position: relative;
}
.photo-summary::-webkit-details-marker { display: none; }
.photo-detail {
  padding-top: 1.5rem;
}

/* ====================== SCROLL REVEAL (slow, weather-like) ====================== */
.reveal {
  opacity: 0; transform: translateY(18px);
  transition: opacity 1.1s var(--ease), transform 1.1s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.12s; }
.reveal.d2 { transition-delay: 0.24s; }
.reveal.d3 { transition-delay: 0.36s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
  .ledger-track, .fog { animation: none !important; }
}