/* ============================================================
   WALKELIA.COM — CASE STUDY STYLESHEET
   Clinical Blueprint system · The Architecture of Understanding
   Shared by case-1 / case-2 / case-3. Matches homepage tokens
   (homepage-white.css + tokens.css). Unused component rules on
   a given page are harmless.
   ============================================================ */

:root{
  /* Field */
  --bg:#FFFFFF;
  --surface:#FAF8F3;
  --surface-deep:#F4F0E8;
  /* Ink */
  --ink:#0B0E2A;
  --ink-2:#2A2F50;
  --ink-3:#6B6D7E;
  --ink-deep:#0B0E2A;
  --on-dark:#F5F2EA;
  --on-dark-soft:rgba(245,242,234,.62);
  /* Signal & structure */
  --blue:#0033E5;
  --blue-soft:rgba(0,51,229,.12);
  --coral:#FF3D2E;
  --coral-soft:rgba(255,61,46,.10);
  /* Rules & grid */
  --rule:#0B0E2A;
  --rule-soft:rgba(11,14,42,.16);
  --rule-faint:rgba(11,14,42,.08);
  --grid-line:rgba(0,51,229,.05);
  /* Legacy aliases — keep stray inline references resolving */
  --border:var(--rule-soft);
  --muted:var(--ink-3);
  --warm:var(--surface);
  --red:#FF3D2E;
  /* Type */
  --serif:'DM Serif Display', Georgia, serif;
  --sans:'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono:'JetBrains Mono', ui-monospace, SFMono-Regular, Consolas, monospace;
  --script:'Caveat', cursive;
  /* Motion */
  --ease:cubic-bezier(.22,.86,.16,1);
  --t-fast:.22s;
  --t-base:.45s;
  /* Layout */
  --case-width:1180px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;background:#fff;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
::selection{background:var(--coral);color:#fff}

/* Bilingual */
[data-lang]{display:none}
body.lang-en [data-lang="en"]{display:revert}
body.lang-es [data-lang="es"]{display:revert}

/* Scroll progress */
#spbar{position:fixed;inset:0 auto auto 0;height:2px;background:var(--coral);width:0;z-index:300;transition:width .1s linear}

/* ---------- NAV ---------- */
/* Scoped to :not(.case-nav) so the bottom <nav class="case-nav"> is NOT fixed.
   Inline padding centres content to the case column on wide screens. */
nav:not(.case-nav){position:fixed;inset:0 0 auto;z-index:200;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px max(clamp(18px,4vw,40px), calc((100% - var(--case-width)) / 2));background:#fff;border-bottom:1px solid var(--rule-soft)}
.nav-logo{display:flex;align-items:center}
.nav-logo-mark{font-family:var(--serif);font-size:22px;letter-spacing:-.02em;display:flex;align-items:baseline;gap:2px;color:var(--ink)}
.nav-logo-mark span{display:inline-block;width:7px;height:7px;background:var(--coral);border-radius:50%;transform:translateY(-7px)}
.nav-studio{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3)}
.nav-right{display:flex;align-items:center;gap:18px}
.nav-meta{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--coral)}
.nav-back{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-2);transition:color .2s ease}
.nav-back:hover{color:var(--coral)}
.lang-btn{font-family:var(--mono);font-size:10px;font-weight:700;letter-spacing:.12em;padding:6px 11px;border:1px solid var(--ink);color:var(--ink);background:#fff;transition:all .2s ease}
.lang-btn:hover{background:var(--coral);border-color:var(--coral);color:#fff}

/* ---------- HERO ---------- */
.hero{position:relative;max-width:var(--case-width);margin:0 auto;padding:140px clamp(24px,5vw,72px) 64px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(to right,var(--grid-line) 1px,transparent 1px);background-size:96px 100%;pointer-events:none;z-index:0}
.hero>*{position:relative;z-index:1}
.hero-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;border-top:1px solid var(--ink);padding-top:16px;margin-bottom:34px;font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-2)}
.hero-meta span{font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-2)}
.hero-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--coral)}
.hero-title{font-family:var(--serif);font-weight:400;font-size:clamp(48px,8vw,116px);line-height:.86;letter-spacing:-.05em;color:var(--ink);margin-bottom:28px}
.hero-title em{font-style:italic;color:var(--blue)}
.hero-subtitle{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--coral);margin-bottom:30px}
.hero-bar{width:28px;height:2px;background:var(--coral);margin-bottom:18px}
.hero-desc{font-size:clamp(15px,1.5vw,17px);line-height:1.8;color:var(--ink-2);font-weight:300;max-width:520px}

/* ---------- ACCORDION ---------- */
.acc-wrap{max-width:var(--case-width);margin:0 auto;padding:0 clamp(24px,5vw,72px);border-top:1px solid var(--ink)}
.acc-section{border-bottom:1px solid var(--ink)}
.acc-trigger{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:26px 0;background:none;border:none;cursor:pointer;text-align:left}
.acc-trigger:hover .acc-plus{color:var(--coral)}
.acc-trigger:hover .acc-label-text{color:var(--ink)}
.acc-label{display:flex;align-items:center;gap:12px}
.acc-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}
.acc-label-text{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-2);transition:color .2s ease}
.acc-plus{font-family:var(--mono);font-size:22px;color:var(--ink-3);line-height:1;transition:transform .3s var(--ease),color .2s ease;flex-shrink:0}
.acc-section.open .acc-plus{transform:rotate(45deg);color:var(--coral)}
.acc-section.open .acc-label-text{color:var(--ink)}
.acc-body{overflow:hidden;max-height:0;opacity:0;transition:max-height .4s var(--ease),opacity .3s}
.acc-section.open .acc-body{opacity:1}
.acc-inner{padding-bottom:44px;max-width:760px}

/* ---------- PROSE ---------- */
.prose{font-size:clamp(15px,1.5vw,17px);line-height:1.85;color:var(--ink-2);font-weight:300}
.prose+.prose{margin-top:16px}
.prose-faded{font-size:clamp(15px,1.5vw,17px);line-height:1.85;color:var(--ink-3);font-weight:300}
.prose-faded+.prose-faded{margin-top:16px}
blockquote{border-left:2px solid var(--coral);padding-left:20px;margin:26px 0}
blockquote p{font-family:var(--serif);font-style:italic;font-size:clamp(18px,1.9vw,24px);line-height:1.3;color:var(--ink)}

/* ---------- LABELS ---------- */
.client-label,.setting-label{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--coral);margin-bottom:16px}

/* ---------- CHALLENGE LIST ---------- */
.challenge-list{display:flex;flex-direction:column;gap:28px;max-width:680px}
.challenge-item{display:flex;gap:20px;align-items:start}
.challenge-num{font-family:var(--serif);font-style:italic;font-size:14px;color:var(--blue);min-width:24px;padding-top:4px;flex-shrink:0}
.challenge-heading{font-family:var(--serif);font-weight:400;font-size:clamp(17px,1.7vw,21px);line-height:1.15;letter-spacing:-.01em;margin-bottom:8px}
.challenge-body{font-size:clamp(14px,1.4vw,15px);line-height:1.78;color:var(--ink-3);font-weight:300}

/* ---------- PRINCIPLES ---------- */
.principles{display:flex;flex-direction:column;gap:22px;max-width:680px}
.principle{border-left:2px solid var(--blue);padding-left:20px}
.principle h3{font-family:var(--serif);font-weight:400;font-size:clamp(16px,1.6vw,19px);margin-bottom:6px}
.principle p{font-size:clamp(14px,1.4vw,15px);line-height:1.75;color:var(--ink-3);font-weight:300}

/* ---------- STATS (case-1) ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:2px;background:var(--rule-soft);border:1px solid var(--rule-soft);margin-bottom:22px}
.stat{padding:24px 16px;background:#fff;border-top:2px solid var(--blue)}
.stat:nth-child(3n+2){border-top-color:var(--coral)}
.stat:nth-child(3n+3){border-top-color:var(--ink)}
.stat-value{font-family:var(--serif);font-size:clamp(28px,3.5vw,44px);font-weight:400;color:var(--ink);line-height:1;margin-bottom:8px}
.stat-label{font-size:12px;color:var(--ink-3);font-weight:300;line-height:1.5}
.stat-note{font-size:14px;color:var(--ink-3);font-style:italic;font-weight:300;max-width:520px;line-height:1.6}

/* ---------- ARTIFACTS ---------- */
.artifact{margin-bottom:48px}
.artifact:last-child{margin-bottom:0}
.artifact-label{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.artifact-line{width:18px;height:1px;background:var(--blue)}
.artifact-name{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3)}
.artifact-frame{border:1px solid var(--ink);padding:clamp(14px,2.5vw,30px);background:
  linear-gradient(to right,var(--grid-line) 1px,transparent 1px),
  linear-gradient(to bottom,var(--grid-line) 1px,transparent 1px),
  var(--surface);
  background-size:32px 32px,32px 32px,auto;max-width:740px;overflow-x:auto}
.artifact-caption{font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin-top:10px;max-width:520px;line-height:1.7;font-weight:400}

/* ---------- DEMONSTRATES ---------- */
.dem-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:0;max-width:680px}
.dem-item{display:flex;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid var(--rule-soft)}
.dem-dot{width:6px;height:6px;border-radius:50%;background:var(--coral);flex-shrink:0}
.dem-text{font-size:clamp(13px,1.3vw,14px);color:var(--ink-2);font-weight:300}

/* ---------- AUDIENCE (case-2) ---------- */
.audience-block{border-left:2px solid var(--blue);padding-left:20px;margin-bottom:22px}
.audience-block.secondary{border-left-color:var(--ink-3)}
.audience-heading{font-family:var(--serif);font-weight:400;font-size:clamp(16px,1.6vw,19px);margin-bottom:6px}
.audience-body{font-size:clamp(13px,1.4vw,15px);line-height:1.75;color:var(--ink-3);font-weight:300}
.char-list{display:flex;flex-direction:column;gap:10px;margin-top:18px}
.char-item{display:flex;gap:11px;align-items:start}
.char-dot{width:5px;height:5px;border-radius:50%;background:var(--coral);flex-shrink:0;margin-top:7px}
.char-text{font-size:clamp(12px,1.3vw,14px);line-height:1.65;color:var(--ink-3);font-weight:300}

/* ---------- BACKWARD DESIGN STAGES (case-2) ---------- */
.stage-list{display:flex;flex-direction:column;gap:20px;margin-bottom:28px}
.stage{border-left:2px solid var(--blue);padding-left:20px}
.stage-header{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.stage-num{font-family:var(--serif);font-style:italic;font-size:13px;color:var(--blue)}
.stage-heading{font-family:var(--serif);font-weight:400;font-size:clamp(16px,1.6vw,19px);letter-spacing:-.01em}
.stage-body{font-size:clamp(12px,1.3vw,14px);line-height:1.75;color:var(--ink-3);font-weight:300}
.udl-note{border-top:1px solid var(--rule-soft);padding-top:24px}
.udl-dots{display:flex;gap:7px;align-items:center;margin-bottom:12px}
.udl-dot{width:6px;height:6px;border-radius:50%}
.udl-label{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3)}
.udl-body{font-size:clamp(13px,1.4vw,14px);line-height:1.75;color:var(--ink-3);font-weight:300}

/* ---------- LESSON LIST (case-2) ---------- */
.lesson-list{display:flex;flex-direction:column}
.lesson{display:flex;gap:18px;align-items:start;padding:18px 0;border-bottom:1px solid var(--rule-soft)}
.lesson:last-child{border-bottom:none}
.lesson-num{font-family:var(--mono);font-size:10px;font-weight:700;letter-spacing:.15em;text-transform:uppercase;min-width:36px;padding-top:3px;flex-shrink:0}
.lesson-title{font-family:var(--serif);font-weight:400;font-size:clamp(16px,1.6vw,19px);margin-bottom:5px}
.lesson-body{font-size:clamp(12px,1.3vw,14px);line-height:1.7;color:var(--ink-3);font-weight:300}

/* ---------- DESIGN DECISIONS (case-2) ---------- */
.design-list{display:flex;flex-direction:column;gap:22px}
.design-item{border-left:2px solid var(--coral);padding-left:20px}
.design-heading{font-family:var(--serif);font-weight:400;font-size:clamp(16px,1.6vw,19px);margin-bottom:6px}
.design-body{font-size:clamp(13px,1.4vw,15px);line-height:1.75;color:var(--ink-3);font-weight:300}

/* ---------- PRODUCTION TOOLS (case-2) ---------- */
.tool-list{display:flex;flex-direction:column}
.tool-item{display:grid;grid-template-columns:120px 1fr;gap:18px;padding:16px 0;border-bottom:1px solid var(--rule-soft);align-items:start}
.tool-item:last-child{border-bottom:none}
.tool-name{font-family:var(--mono);font-size:10px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--coral);padding-top:2px}
.tool-detail{font-size:clamp(13px,1.4vw,14px);line-height:1.7;color:var(--ink-3);font-weight:300}

/* ---------- THEORY (case-2) ---------- */
.theory-list{display:flex;flex-direction:column}
.theory-item{display:flex;gap:18px;padding:18px 0;border-bottom:1px solid var(--rule-soft);align-items:start}
.theory-item:last-child{border-bottom:none}
.theory-num{font-family:var(--serif);font-style:italic;font-size:13px;color:var(--blue);min-width:24px;padding-top:3px;flex-shrink:0}
.theory-name{font-family:var(--serif);font-weight:400;font-size:clamp(15px,1.6vw,18px)}
.theory-author{font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin-left:6px}
.theory-role{font-size:clamp(12px,1.3vw,14px);line-height:1.7;color:var(--ink-3);font-weight:300;margin-top:3px}

/* ---------- VERSION NOTE (case-2) ---------- */
.version-note{border-top:1px solid var(--rule-soft);padding-top:22px;margin-top:4px}
.version-tag{display:flex;align-items:center;gap:9px;margin-bottom:12px}
.version-tag .v-dot{width:6px;height:6px;border-radius:50%;background:var(--coral)}
.version-tag span{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3)}
.version-body{font-size:clamp(13px,1.4vw,14px);line-height:1.75;color:var(--ink-3);font-weight:300}
.version-body+.version-body{margin-top:10px}

/* ---------- COURSE CTA (case-2) ---------- */
.cta-link{display:inline-flex;align-items:center;gap:10px;font-family:var(--serif);font-size:clamp(20px,2.4vw,30px);color:var(--ink);border-bottom:2px solid var(--coral);padding-bottom:4px;transition:gap .2s ease,color .2s ease}
.cta-link:hover{gap:16px;color:var(--blue)}
.cta-note{font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-top:12px}

/* ---------- RESULTS (case-3) ---------- */
.results-ongoing{display:flex;align-items:center;gap:11px;margin-bottom:18px}
.results-dot{width:8px;height:8px;border-radius:50%;background:var(--coral)}
.results-status{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3)}

/* ---------- CASE NAV ---------- */
.case-nav{max-width:var(--case-width);margin:0 auto;border-top:1px solid var(--ink);padding:36px clamp(24px,5vw,72px);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px}
.case-nav a{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);transition:color .2s ease}
.case-nav a:hover{color:var(--coral)}
.case-nav .center{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3)}

/* ---------- ANIMATE (case-1) ---------- */
@keyframes float-up{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.animate-in{opacity:0}
.animate-in.visible{animation:float-up .6s var(--ease) forwards}

/* ---------- RESPONSIVE ---------- */
@media(max-width:760px){
  nav:not(.case-nav){padding:12px 18px;gap:14px}
  .nav-studio,.nav-meta{display:none}
  .hero{padding:104px 20px 48px}
  .hero::before{display:none}
  .acc-wrap,.case-nav{padding-left:20px;padding-right:20px}
  .acc-inner{max-width:100%}
  .tool-item{grid-template-columns:1fr;gap:4px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}

/* ============================================================
   EDITORIAL DOSSIER — open layout (case pages)
   Hero plate · sticky index · open sections · scroll reveal
   ============================================================ */

/* Scroll reveal — hidden state gated behind .reveal-ready (set by JS),
   so the page stays fully visible if scripts never run. */
.reveal-ready .reveal{opacity:0;transform:translateY(22px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal-ready .reveal.is-visible{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal-ready .reveal{opacity:1!important;transform:none!important;transition:none}}

/* Hero */
.case-hero{position:relative;max-width:var(--case-width);margin:0 auto;padding:132px clamp(24px,5vw,72px) 56px;overflow:hidden}
.case-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(to right,var(--grid-line) 1px,transparent 1px);background-size:96px 100%;pointer-events:none;z-index:0}
.case-hero>*{position:relative;z-index:1}
.case-hero__ghost{position:absolute;top:48px;right:-8px;z-index:0;font-family:var(--serif);font-size:clamp(150px,26vw,360px);line-height:.8;letter-spacing:-.05em;color:var(--blue);opacity:.06;pointer-events:none;-webkit-user-select:none;user-select:none}
.case-hero__meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;border-top:1px solid var(--ink);padding-top:14px;font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-2)}
.case-hero__meta .dot{width:5px;height:5px;border-radius:50%;background:var(--coral)}
.case-hero__title{font-family:var(--serif);font-weight:400;font-size:clamp(44px,7.2vw,104px);line-height:.9;letter-spacing:-.045em;margin-top:26px;max-width:15ch;color:var(--ink)}
.case-hero__title em{font-style:italic;color:var(--blue)}
.case-hero__desc{margin-top:24px;font-size:clamp(15px,1.5vw,18px);line-height:1.75;color:var(--ink-2);font-weight:300;max-width:560px}
.case-hero__plate{position:relative;margin-top:40px;border:1px solid var(--ink);background:var(--surface);overflow:hidden;aspect-ratio:16/7}
.case-hero__plate img{width:100%;height:100%;object-fit:cover;display:block}
.case-hero__plate .fig-note{position:absolute;left:14px;bottom:12px;z-index:2;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);background:rgba(255,255,255,.86);padding:5px 10px;display:flex;align-items:center;gap:8px}
.case-hero__plate .fig-note::before{content:"";width:20px;height:1px;background:var(--blue)}
.plate-corner{position:absolute;width:14px;height:14px;z-index:2;pointer-events:none;border:1px solid var(--coral)}
.plate-corner.tl{top:10px;left:10px;border-right:0;border-bottom:0}
.plate-corner.tr{top:10px;right:10px;border-left:0;border-bottom:0}
.plate-corner.bl{bottom:10px;left:10px;border-right:0;border-top:0}
.plate-corner.br{bottom:10px;right:10px;border-left:0;border-top:0}
.case-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--rule-soft);margin-top:30px}
.case-facts>div{padding:16px 16px 0}
.case-facts dt{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--blue);margin-bottom:7px}
.case-facts dd{font-size:14px;color:var(--ink-2);line-height:1.45}

/* Manifesto pull-quote band */
.case-quote--band{max-width:var(--case-width);margin:0 auto;padding:clamp(34px,5vw,60px) clamp(24px,5vw,72px);background:var(--surface);border-block:1px solid var(--ink)}
.case-quote--band p{font-family:var(--serif);font-size:clamp(26px,4vw,52px);line-height:1.08;letter-spacing:-.03em;color:var(--ink);max-width:20ch}
.case-quote--band em{font-style:italic;color:var(--coral)}

/* Layout + sticky index */
.case-layout{max-width:var(--case-width);margin:0 auto;padding:0 clamp(24px,5vw,72px);display:grid;grid-template-columns:180px minmax(0,1fr);gap:clamp(32px,5vw,72px)}
.case-quote--band + .case-layout{border-top:0}
.case-index{position:sticky;top:96px;align-self:start;padding-top:40px;display:flex;flex-direction:column;gap:2px}
.case-index__tag{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3);margin-bottom:14px}
.case-index__link{font-family:var(--mono);font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:var(--ink-3);padding:8px 0 8px 12px;border-left:2px solid transparent;transition:color .2s ease,border-color .2s ease}
.case-index__link:hover{color:var(--ink)}
.case-index__link.is-active{color:var(--coral);border-left-color:var(--coral)}

/* Open sections */
.case-sections{padding-top:8px}
.case-sec{padding:46px 0;border-bottom:1px solid var(--rule-soft);scroll-margin-top:90px}
.case-sec:last-child{border-bottom:0}
.case-sec__head{display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:baseline;margin-bottom:26px}
.case-sec__num{font-family:var(--serif);font-style:italic;font-size:34px;color:var(--coral);line-height:.9}
.case-sec__title{font-family:var(--serif);font-weight:400;font-size:clamp(28px,3.6vw,46px);line-height:.95;letter-spacing:-.03em;color:var(--ink)}

@media(max-width:900px){
  .case-layout{grid-template-columns:1fr;gap:0}
  .case-index{position:static;flex-direction:row;flex-wrap:wrap;gap:6px 16px;padding:18px 0;border-bottom:1px solid var(--rule-soft)}
  .case-index__tag{width:100%;margin-bottom:4px}
  .case-index__link{padding:4px 0;border-left:0}
  .case-index__link.is-active{border-left:0;text-decoration:underline;text-underline-offset:5px}
  .case-facts{grid-template-columns:1fr 1fr;gap:0}
  .case-facts>div:nth-child(n+3){padding-top:18px}
}
@media(max-width:760px){
  .case-hero{padding:104px 20px 40px}
  .case-hero::before{display:none}
  .case-hero__plate{aspect-ratio:4/3}
  .case-sec{padding:34px 0}
  .case-sec__head{grid-template-columns:1fr;gap:8px;margin-bottom:20px}
  .case-sec__num{font-size:26px}
}