/* Case study shell, shared by every project page.
   Matches the portfolio (Desktop/portfolio/styles.css): Inter only at 400/500, hierarchy through color and weight,
   light + dark, static grain, subtle radii. Tokens are prefixed --p- so they never collide with the mockup systems.
   Each page sets its accent on <body>: style="--p-acc-l:#db000c; --p-acc-d:#ff646c" (the portfolio's link colors). */

:root {
  --p-bg: #F5F4F2;
  --p-text: #121214;
  --p-muted: #6f6b64;
  --p-faint: #ccc8c2;
  --p-line: rgba(18, 18, 20, .09);
  --p-card: #EBEAE7;
  --p-grain: .06;
  --p-ease: cubic-bezier(.16, 1, .3, 1);
  --p-spring: cubic-bezier(.34, 1.36, .5, 1);
  --p-col: 560px;
  --p-wide: 1120px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --p-bg: #000000; --p-text: #ededee; --p-muted: #9c9ca1; --p-faint: #3a3a3e; --p-line: rgba(255, 255, 255, .08); --p-card: #0E0E10; --p-grain: .07; }
  :root:not([data-theme="light"]) body { --p-acc: var(--p-acc-d); }
}
:root[data-theme="dark"] { --p-bg: #000000; --p-text: #ededee; --p-muted: #9c9ca1; --p-faint: #3a3a3e; --p-line: rgba(255, 255, 255, .08); --p-card: #0E0E10; --p-grain: .07; }
:root[data-theme="dark"] body { --p-acc: var(--p-acc-d); }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--p-bg); }
body {
  --p-acc: var(--p-acc-l);
  margin: 0; background: var(--p-bg); color: var(--p-text);
  font: 400 17px/1.55 Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
  transition: background-color .5s var(--p-ease), color .5s var(--p-ease);
}
body > header, body > main, body > footer { font-family: Inter, ui-sans-serif, system-ui, sans-serif; }
:where(h1, h2, h3, p):where(:not(.mock *)) { margin: 0; font-weight: inherit; font-size: inherit; }
a { color: inherit; }
:where(img, video):where(:not(.mock *)) { display: block; max-width: 100%; }
:where(b, strong):where(:not(.mock *)) { font-weight: 500; color: var(--p-text); }

body::after {
  content: ""; position: fixed; inset: 0; z-index: 100; pointer-events: none; opacity: var(--p-grain);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.5 0 0 0 0 0.5 0 0 0 0 0.5 0 0 0 1.4 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- header (same as the homepage: scrolls away, no blur bar) ---------- */
.p-header { position: absolute; top: 0; left: 0; right: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between;
  padding: 24px max(24px, calc(50% - var(--p-wide) / 2)); } /* edges line up with the content column, like the homepage */
.p-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 500; font-size: 15px; letter-spacing: -.01em; }
.p-brand img { width: 32px; height: 32px; border-radius: 50%; object-fit: cover; box-shadow: 0 0 0 1px rgba(0, 0, 0, .06), 0 2px 6px rgba(0, 0, 0, .14); }
.p-head-r { display: flex; align-items: center; gap: 18px; font-size: 15px; }
.p-head-r a { color: var(--p-muted); text-decoration: none; transition: color .2s; }
.p-head-r a:hover { color: var(--p-text); }
.p-theme { width: 36px; height: 36px; border: 0; padding: 0; border-radius: 50%; background: transparent; color: var(--p-text); cursor: pointer; display: grid; place-items: center; }
/* Sun/moon: the icon shows the mode you'd switch to, so light mode shows a crescent moon and dark mode a sun. Switching to
   dark, the bite slides off the moon, the disc shrinks and the rays spin in; switching to light, the rays go first, the
   disc grows and the bite slides back. */
.sun-moon { width: 20px; height: 20px; overflow: visible; transition: transform .5s var(--p-spring); }
.sun-moon .sm-core, .sun-moon .sm-rays { transform-box: fill-box; transform-origin: center; }
.sun-moon .sm-bite { transform: none; transition: transform .4s cubic-bezier(.4, 0, .2, 1) .32s; }
.sun-moon .sm-core { transform: none; transition: transform .45s var(--p-spring) .12s; }
.sun-moon .sm-rays { opacity: 0; transform: scale(.4) rotate(-60deg); transition: opacity .2s ease, transform .3s cubic-bezier(.4, 0, 1, 1); }
:root[data-theme="dark"] .sun-moon .sm-bite { transform: translate(10px, -10px); transition: transform .35s cubic-bezier(.4, 0, .2, 1); }
:root[data-theme="dark"] .sun-moon .sm-core { transform: scale(.62); transition: transform .45s var(--p-spring) .22s; }
:root[data-theme="dark"] .sun-moon .sm-rays { opacity: 1; transform: none; transition: opacity .3s ease .38s, transform .55s var(--p-spring) .38s; }
@media (prefers-reduced-motion: reduce) { .sun-moon, .sun-moon * { transition: none !important; } }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .sun-moon .sm-bite { transform: translate(10px, -10px); transition: transform .35s cubic-bezier(.4, 0, .2, 1); }
  :root:not([data-theme="light"]) .sun-moon .sm-core { transform: scale(.62); transition: transform .45s var(--p-spring) .22s; }
  :root:not([data-theme="light"]) .sun-moon .sm-rays { opacity: 1; transform: none; transition: opacity .3s ease .38s, transform .55s var(--p-spring) .38s; }
}
.p-theme:hover .sun-moon { transform: rotate(-18deg) scale(1.08); }
:focus-visible { outline: 2px solid var(--p-muted); outline-offset: 4px; border-radius: 6px; }

/* ---------- shared bits ---------- */
.p-tile { width: 48px; height: 48px; border-radius: 9px; object-fit: cover; box-shadow: 0 1px 2px rgba(0, 0, 0, .06), 0 12px 32px -8px rgba(0, 0, 0, .18); outline: 1px solid rgba(0, 0, 0, .06); outline-offset: -1px; }
.p-muted { color: var(--p-muted); }
.p-link { color: var(--p-acc); text-decoration: none; font-weight: 500; transition: opacity .2s; }
.p-link:hover { opacity: .7; }
.p-u { color: var(--p-muted); text-decoration: underline; text-decoration-color: var(--p-faint); text-underline-offset: 4px; transition: color .2s, text-decoration-color .2s; }
.p-u:hover { color: var(--p-text); text-decoration-color: currentColor; }
.p-facts { margin: 0; display: grid; }
.p-facts div { display: grid; grid-template-columns: 120px 1fr; gap: 16px; padding: 10px 0; border-top: 1px solid var(--p-line); font-size: 15px; }
.p-facts div:first-child { border-top: 0; }
.p-facts dt { color: var(--p-muted); }
.p-facts dd { margin: 0; }
.p-fig { margin: 0; }
.p-plate { position: relative; border-radius: 12px; background: var(--p-card); padding: clamp(14px, 4.5vw, 56px); overflow: hidden; transition: background-color .5s var(--p-ease); }
.p-plate.flush { padding: 0; }
.p-plate.tint { background: var(--p-tint, var(--p-card)); }
.p-cap { margin-top: 12px; font-size: 14px; color: var(--p-muted); max-width: var(--p-col); }
.p-quote { margin: 0; }
.p-quote p { font-size: 17px; line-height: 1.55; }
.p-quote p::before { content: '“'; } .p-quote p::after { content: '”'; }
.p-quote footer { margin-top: 8px; font-size: 14px; color: var(--p-muted); }
.p-list { list-style: none; margin: 0; padding: 0; }
.p-list li { display: grid; grid-template-columns: 180px 1fr; gap: 16px; padding: 12px 0; border-top: 1px solid var(--p-line); font-size: 15px; }
.p-list li:first-child { border-top: 0; }
.p-list li span { color: var(--p-muted); }
.p-pn { display: flex; justify-content: space-between; gap: 24px; font-size: 15px; }
.p-pn a { text-decoration: none; color: var(--p-muted); transition: color .2s; }
.p-pn a b { display: block; color: var(--p-text); font-size: 17px; margin-top: 2px; }
.p-pn a:hover { color: var(--p-text); }
.p-pn a:last-child { text-align: right; }
.p-foot { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--p-line); display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px 24px; font-size: 14px; color: var(--p-muted); }
.p-foot p { margin: 0; }
/* Copy-email button, as on the homepage */
.mail { display: inline-flex; align-items: center; gap: 4px; vertical-align: middle; }
.copy-mail { position: relative; width: 22px; height: 22px; padding: 0; border: 0; border-radius: 6px; display: grid; place-items: center;
  background: transparent; color: var(--p-muted); cursor: pointer; transition: color .2s, background .2s; }
.copy-mail:hover { color: var(--p-text); background: color-mix(in srgb, var(--p-text) 8%, transparent); }
.copy-mail:focus-visible { outline: 2px solid var(--p-text); outline-offset: 2px; }
.copy-mail svg { grid-area: 1 / 1; width: 14px; height: 14px; transition: opacity .2s, transform .3s cubic-bezier(.34, 1.36, .5, 1); }
.copy-mail .i-ok { opacity: 0; transform: scale(.5); color: #0ba967; }
.copy-mail.is-copied .i-copy { opacity: 0; transform: scale(.5); }
.copy-mail.is-copied .i-ok { opacity: 1; transform: none; }

/* ---------- reveal ---------- */
.js .p-rv { opacity: 0; transform: translateY(14px); filter: blur(4px); }
.js .p-rv.in { opacity: 1; transform: none; filter: none; transition: opacity .9s var(--p-ease), transform .9s var(--p-ease), filter .9s var(--p-ease); }

/* =========================================================
   FULL layout: wide figures, sections read top to bottom
   ========================================================= */
.cs { width: min(100% - 48px, var(--p-wide)); margin: 0 auto; padding: 168px 0 96px; }
.cs-intro { max-width: var(--p-col); }
.cs-id { display: flex; align-items: center; gap: 18px; margin-bottom: 32px; }
.cs-id .p-tile { width: 56px; height: 56px; border-radius: 11px; }
.cs-id h1 { font-size: 27px; font-weight: 500; letter-spacing: -.025em; line-height: 1.2; }
.cs-id p { font-size: 17px; color: var(--p-muted); margin-top: 2px; }
.cs-intro > p { color: var(--p-muted); margin-bottom: 14px; }
.cs-intro .p-facts { margin-top: 32px; }
.cs-hero { margin-top: 72px; }
.cs-sec { margin-top: 152px; }
.cs-head { max-width: var(--p-col); margin-bottom: 36px; }
.cs-head .n { display: block; font-size: 15px; color: var(--p-acc); margin-bottom: 10px; font-variant-numeric: tabular-nums; }
.cs-head h2 { font-size: 21px; font-weight: 500; letter-spacing: -.02em; line-height: 1.3; margin-bottom: 12px; }
.cs-head p { color: var(--p-muted); }
.cs-head p + p { margin-top: 12px; }
.cs-sec .p-fig + .p-fig, .cs-sec .p-fig + .cs-row, .cs-sec .cs-row + .p-fig { margin-top: 40px; }
.cs-row { display: grid; grid-template-columns: 5fr 7fr; gap: 16px; align-items: start; }
.cs-row.even { grid-template-columns: 1fr 1fr; }
.cs-after { max-width: var(--p-col); margin-top: 40px; }
.cs-after h3 { font-size: 15px; font-weight: 500; margin-bottom: 12px; }
.cs-note { max-width: var(--p-col); margin-top: 40px; padding-left: 16px; border-left: 2px solid var(--p-acc); }
.cs-note p { font-size: 17px; }
.cs-note span { display: block; margin-top: 6px; font-size: 14px; color: var(--p-muted); }
.cs-quotes { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; max-width: 920px; margin-top: 48px; }
.cs-grid { display: grid; gap: 12px; }
.cs-grid.c4 { grid-template-columns: repeat(4, 1fr); }
.cs-grid.c5 { grid-template-columns: repeat(5, 1fr); }
.cs-grid.c3 { grid-template-columns: repeat(3, 1fr); }
.cs-grid figure { margin: 0; }
.cs-grid img { width: 100%; border-radius: 8px; }
.cs-grid figcaption { margin-top: 8px; font-size: 13px; color: var(--p-muted); }
.cs-grid figure.pick figcaption { color: var(--p-acc); }
.cs-grid figure.pick > img, .cs-grid figure.pick .lg { box-shadow: 0 0 0 1.5px var(--p-acc); }
.cs-end { margin-top: 152px; }
.cs-grid .lg { aspect-ratio: 1; border-radius: 8px; background: #F7F5F2; display: grid; place-items: center; }
.cs-grid .lg img { width: 44%; border-radius: 0; }
.cs-grid .lg.ink { background: #1E1C1A; }
.cs-brief { margin: 0; padding: clamp(18px, 3vw, 28px); border-radius: 12px; background: var(--p-card); font-size: 15px; line-height: 1.7; color: var(--p-muted); }
.cs-brief b { display: block; margin-bottom: 4px; }
.cs-brief span { color: var(--p-acc); font-weight: 500; margin-right: 6px; }
.cs-sw { display: grid; grid-template-columns: repeat(8, 1fr); border-radius: 8px; overflow: hidden; margin-top: 16px; }
.cs-sw i { height: 44px; display: block; }
.cs-sw.top { margin: 0 0 16px; }
.p-list.cs-grid2 { display: grid; grid-template-columns: 1fr 1fr; column-gap: 32px; max-width: none; }
.p-list.cs-grid2 li { display: block; padding: 14px 0; }
.p-list.cs-grid2 li span { display: block; margin-top: 4px; }
.p-list.cs-grid2 li:nth-child(-n+2) { border-top: 0; }

@media (max-width: 900px) {
  .p-header { padding: 18px 16px; }
  .p-head-r a.hide-m { display: none; }
  body { font-size: 16px; }
  .cs { width: calc(100% - 32px); padding-top: 120px; }
  .cs-hero { margin-top: 48px; }
  .cs-sec { margin-top: 104px; }
  .cs-id h1 { font-size: 23px; }
  .cs-id p { font-size: 16px; }
  .cs-id .p-tile { width: 48px; height: 48px; border-radius: 9px; }
  .cs-row, .cs-row.even, .cs-quotes { grid-template-columns: 1fr; gap: 16px; }
  .cs-quotes { gap: 28px; }
  .cs-grid.c4, .cs-grid.c5 { grid-template-columns: repeat(2, 1fr); }
  .p-plate { border-radius: 8px; }
  .p-list li { grid-template-columns: 1fr; gap: 2px; }
  .p-list.cs-grid2 { grid-template-columns: 1fr; }
  .p-list.cs-grid2 li:nth-child(2) { border-top: 1px solid var(--p-line); }
  .p-facts div { grid-template-columns: 100px 1fr; }
}

/* =========================================================
   MINIMAL layout: facts on the left, one narrow column
   ========================================================= */
.mn { width: min(100% - 48px, 1100px); margin: 0 auto; padding: 136px 0 96px; display: grid; grid-template-columns: 250px minmax(0, 640px); justify-content: space-between; gap: 64px; }
.mn-aside { position: sticky; top: 40px; align-self: start; min-height: calc(100vh - 80px); display: flex; flex-direction: column; font-size: 15px; }
.mn-id { display: flex; align-items: center; gap: 10px; font-weight: 500; }
.mn-id img { width: 22px; height: 22px; border-radius: 5px; }
.mn-id span { margin-left: auto; font-weight: 400; color: var(--p-muted); font-variant-numeric: tabular-nums; }
.mn-aside > p { color: var(--p-muted); margin: 10px 0 24px; line-height: 1.5; }
.mn-facts { list-style: none; margin: 0; padding: 0; }
.mn-facts li { padding: 9px 0; border-top: 1px solid var(--p-line); color: var(--p-muted); }
.mn-facts li:first-child { border-top: 0; }
.mn-facts a { color: var(--p-text); text-decoration: none; display: inline-flex; align-items: center; gap: 6px; }
.mn-facts a::after { content: '↗'; color: var(--p-acc); font-size: 13px; }
.mn-quote { margin-top: auto; padding-top: 48px; }
.mn-quote p { color: var(--p-muted); font-size: 15px; }
.mn-quote footer { margin-top: 8px; font-size: 14px; color: var(--p-text); }
.mn-main { min-width: 0; }
.mn-back { display: inline-block; font-size: 15px; color: var(--p-muted); text-decoration: none; margin-bottom: 56px; transition: color .2s; }
.mn-back:hover { color: var(--p-text); }
.mn-title h1 { font-size: 23px; font-weight: 500; letter-spacing: -.02em; line-height: 1.25; }
.mn-title p { color: var(--p-muted); font-size: 18px; margin-top: 2px; }
.mn-body { margin-top: 48px; }
.mn-body > p { margin-bottom: 18px; }
.mn-body > h2 { font-size: 17px; font-weight: 500; margin: 64px 0 12px; }
.mn-body > h2 + p { color: var(--p-text); }
.mn-body .p-fig { margin: 28px 0 32px; }
.mn-body .p-plate { border-radius: 10px; padding: clamp(12px, 3.5vw, 28px); }
.mn-body .p-plate.flush { padding: 0; }
.mn-body .p-cap { font-size: 13.5px; margin-top: 10px; }
.mn-body .p-list li { grid-template-columns: 150px 1fr; }
.mn-body .mn-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 28px 0 32px; }
.mn-body .mn-pair .p-fig { margin: 0; }
.mn-end { margin-top: 80px; }

@media (max-width: 900px) {
  .mn { width: calc(100% - 32px); grid-template-columns: 1fr; gap: 40px; padding-top: 104px; }
  .mn-aside { position: static; min-height: 0; }
  .mn-quote { padding-top: 28px; }
  .mn-back { margin-bottom: 32px; }
  .mn-title h1 { font-size: 21px; }
  .mn-title p { font-size: 17px; }
  .mn-body .p-list li { grid-template-columns: 1fr; gap: 2px; }
  .mn-body .mn-pair { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .js .p-rv { opacity: 1; transform: none; filter: none; }
}