/* FoneStream case study. Uses /studio/ CD1 tokens and local ZT Nature. */
html:has(.fonestream-case) { scroll-behavior: auto; }
.fonestream-case { --case-mono: 'IBM Plex Mono', ui-monospace, monospace; }
.fonestream-case .direction-nav { z-index: 20; }
.fonestream-case :focus-visible { outline: 3px solid var(--direction-accent-blue); outline-offset: 5px; }
.case-skip { position: fixed; left: 12px; top: 12px; z-index: 100; padding: 14px 20px; background: #fff; transform: translateY(-200%); }
.case-skip:focus { transform: none; }
.case-shell { width: min(100%, var(--direction-max)); margin: auto; border-inline: 1px solid var(--direction-line); }
.case-head { padding: clamp(36px, 6vw, 80px) var(--direction-pad) 36px; }
.case-crumb, .case-eyebrow, .case-meta, .case-caption, .case-index, .case-label, .case-footer { font: 500 11px/1.5 var(--case-mono); letter-spacing: .035em; }
.case-crumb { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 42px; }
.case-crumb a { text-underline-offset: 4px; }
.case-eyebrow { margin: 0 0 14px; text-transform: uppercase; color: var(--direction-accent-blue); }
.case-title { margin: 0; font-size: clamp(44px, 10.9vw, 154px); font-weight: 500; line-height: .95; letter-spacing: -.065em; text-transform: none; }
.case-deck { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: end; margin-top: 32px; }
.case-deck > p { font-size: clamp(20px, 2.4vw, 32px); line-height: 1.22; letter-spacing: -.03em; margin: 0; max-width: 34ch; }
.case-meta { display: flex; flex-wrap: wrap; gap: 10px 26px; justify-content: end; margin: 0; }
.case-meta div { display: grid; gap: 5px; }
.case-meta dt { color: var(--direction-muted); }
.case-meta dd { margin: 0; }
.case-cover { margin: 0; }
.case-media { position: relative; background: #171e2b; }
.case-media video, .case-media img { display: block; width: 100%; height: auto; }
.case-media video { color-scheme: dark; }
.case-media [hidden] { display: none; }
.case-caption { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; margin: 0; padding: 16px var(--direction-pad); color: #55535a; border-bottom: 1px solid var(--direction-line); }
.case-caption a { text-underline-offset: 3px; }
.case-media-status:empty { display: none; }
.case-media-status { margin: 0; padding: 14px 20px; color: #fff; font: 13px/1.5 var(--case-mono); }
.case-index { display: flex; flex-wrap: wrap; gap: 8px 30px; padding: 18px var(--direction-pad); border-bottom: 1px solid var(--direction-ink); }
.case-index a { padding: 8px 0; text-decoration: none; }
.case-index a:hover { text-decoration: underline; text-underline-offset: 4px; }
.case-section { padding: clamp(56px, 8vw, 110px) var(--direction-pad); border-bottom: 1px solid var(--direction-ink); scroll-margin-top: 85px; }
.case-section-head { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 5vw, 70px); align-items: start; margin-bottom: 36px; }
.case-section h2 { margin: 0; max-width: 16ch; font-size: clamp(36px, 4.9vw, 66px); line-height: .98; font-weight: 500; letter-spacing: -.045em; }
.case-copy p { margin: 0 0 16px; font-size: clamp(17px, 1.5vw, 21px); line-height: 1.5; max-width: 47ch; }
.case-copy p:last-child { margin-bottom: 0; }
.case-section figure { margin: 0; }
.case-section .case-caption { padding-inline: 0; }
.case-stills { margin-top: 24px; }
.case-stills summary, .case-notes summary { width: fit-content; cursor: pointer; min-height: 44px; padding-block: 10px; font: 500 13px/1.6 var(--case-mono); }
.case-still-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
.case-still-grid img { height: auto; }
.case-still-grid figcaption { padding-top: 10px; font: 12px/1.5 var(--case-mono); }
.case-movement { background: var(--direction-ink); color: var(--direction-paper); }
.case-movement .case-eyebrow { color: #aebaff; }
.case-movement .case-caption { color: #c2c7d1; border-color: #555c6b; }
.case-movement :focus-visible { outline-color: #bcc6ff; }
.case-comparison-labels { display: grid; grid-template-columns: repeat(3, 1fr); background: #171e2b; }
.case-comparison-labels > div { padding: clamp(12px, 2.5vw, 30px); border-right: 1px solid #444b58; }
.case-comparison-labels > div:last-child { border-right: 0; }
.case-comparison-labels strong { display: block; font-size: clamp(32px, 5.5vw, 72px); line-height: 1; letter-spacing: -.06em; }
.case-comparison-labels span { display: block; margin-top: 10px; font: 11px/1.5 var(--case-mono); color: #ccd2df; }
.case-spread { display: grid; grid-template-columns: minmax(0, 2.4fr) minmax(0, 1fr); gap: 24px; align-items: start; }
.case-spread-main { display: grid; gap: 24px; }
.case-spread img { height: auto; border: 1px solid #c4c6ce; }
.case-spread .case-caption { font-size: 10px; padding-block: 10px; }
.case-mobile { padding: 18px; background: #dfe1e8; }
.case-mobile img { border-radius: 18px; }
.case-swatches { display: flex; flex-wrap: wrap; gap: 14px 26px; margin: 28px 0 0; font: 11px/1.5 var(--case-mono); }
.case-swatches span { display: inline-flex; align-items: center; gap: 8px; }
.case-swatches i { width: 18px; height: 18px; border: 1px solid #9396a2; background: var(--swatch); }
.case-note-card { background: #e8e9ee; border: 1px solid var(--direction-ink); padding: clamp(24px, 4vw, 48px); }
.case-note-card .case-label { color: #4f5361; }
.case-note-card h3 { margin: 16px 0; font-size: clamp(26px, 3.8vw, 48px); line-height: 1.08; letter-spacing: -.04em; }
.case-note-card blockquote { margin: 22px 0 0; padding: 18px 0 0; border-top: 1px solid #a5a8b3; font-size: 18px; line-height: 1.55; }
.case-note-card blockquote p { margin: 0; max-width: 64ch; }
.case-notes pre { white-space: pre-wrap; overflow-wrap: anywhere; font: 12px/1.7 var(--case-mono); max-width: 90ch; }
.case-close { padding: clamp(42px, 6vw, 80px) var(--direction-pad); display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; align-items: center; }
.case-close p { font-size: 22px; line-height: 1.4; max-width: 42ch; margin: 0; }
.case-close a { padding: 18px 22px; background: var(--direction-ink); color: #fff; text-decoration: none; font: 12px/1.5 var(--case-mono); }
.case-footer { padding: 22px var(--direction-pad); border-top: 1px solid var(--direction-line); color: var(--direction-muted); }
/* Portfolio entry is a real case-study link, outside the existing media modal. */
.fonestream-portfolio-cover { display: block; text-decoration: none; border: 1px solid var(--direction-ink); }
.fonestream-portfolio-cover img { display: block; width: 100%; height: auto; }
.fonestream-portfolio-cover span { display: flex; justify-content: space-between; gap: 16px; padding: 20px; font: 500 12px/1.5 var(--mono, monospace); background: var(--direction-ink); color: #fff; }
.fonestream-portfolio-cover:hover span { background: var(--direction-accent-blue); }
@media (min-width: 1022px) { body.portfolio-direction-page .toc:has(a[href="#fonestream"]) { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); } }
@media (max-width: 760px) {
 .case-deck, .case-section-head { grid-template-columns: 1fr; gap: 24px; }
 .case-meta { justify-content: start; gap: 20px; }
 .case-crumb { margin-bottom: 30px; }
 .case-head { padding-bottom: 28px; }
 .case-index { column-gap: 22px; }
 .case-spread { grid-template-columns: 1fr; }
 .case-mobile { width: min(100%, 330px); margin-inline: auto !important; }
 .case-still-grid { grid-template-columns: 1fr; }
 .case-comparison-labels > div { padding-inline: 12px; }
 .case-comparison-labels span { font-size: 10px; }
 .fonestream-case .direction-nav__links { gap: 18px; }
 .fonestream-case .direction-nav__links a { min-height: 44px; display: flex; align-items: center; }
}
@media (prefers-reduced-motion: reduce) {
 .fonestream-case *, .fonestream-case *::before, .fonestream-case *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}
/* Long project name stays inside the existing numbered portfolio header. */
body.portfolio-direction-page #fonestream .project__title { font-size: clamp(32px, 9vw, 132px); line-height: .85; }
@media (max-width: 1100px) {
  body.portfolio-direction-page #fonestream .project__head { grid-template-columns: 1fr; }
}
@media (max-width: 500px) {
  .fonestream-portfolio-cover span { flex-direction: column; padding: 16px; }
}
/* Keep navigation legible above both paper and graphite sections. */
.fonestream-case .direction-nav { background: linear-gradient(135deg, #fbffe9, #dce3de 52%, #d7dcf3) !important; }