/* ═══════════════════════════════════════════════════════
   EDITORIAL STUDIO — shared design system
   Vinícius Rosan Portfolio
   ═══════════════════════════════════════════════════════ */

:root {
  /* Colors — warm paper editorial */
  --paper:       #EFEAE0;
  --paper-deep:  #E6DFD1;
  --paper-soft:  #F5F1E8;
  --ink:         #141210;
  --ink-soft:    #2A2622;
  --ink-dim:     #6D665C;
  --ink-faint:   #A8A195;
  --rule:        rgba(20, 18, 16, 0.14);
  --rule-strong: rgba(20, 18, 16, 0.40);
  --accent:      #B13522;
  --accent-ink:  #7A2516;
  --accent-soft: rgba(177, 53, 34, 0.08);

  /* Typography */
  --serif:       "Fraunces", "Georgia", serif;
  --sans:        "Instrument Sans", "Helvetica Neue", system-ui, sans-serif;
  --mono:        "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Grid */
  --gutter:      clamp(20px, 3vw, 40px);
  --edge:        clamp(20px, 4vw, 56px);
  --maxw:        1440px;
  --prose:       720px;

  /* Motion */
  --ease:        cubic-bezier(0.22, 1, 0.36, 1);
  --ease-swift:  cubic-bezier(0.4, 0, 0.2, 1);
  --dur:         0.6s;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  font-feature-settings: "ss01", "ss02", "kern", "liga";
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  font-feature-settings: "ss01", "kern", "liga", "ss02";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }

::selection { background: var(--ink); color: var(--paper); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

html::-webkit-scrollbar { width: 10px; background: var(--paper-deep); }
html::-webkit-scrollbar-thumb { background: var(--ink-faint); }
html::-webkit-scrollbar-thumb:hover { background: var(--ink-dim); }

/* ─────────── LAYOUT ─────────── */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--edge);
}

.container--prose {
  max-width: calc(var(--prose) + var(--edge) * 2);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--gutter);
}

/* ─────────── TICKER + SCROLL PROGRESS ─────────── */
.scroll-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: transparent;
  z-index: 200;
  pointer-events: none;
}
.scroll-progress__bar {
  height: 100%;
  width: 0%;
  background: var(--accent);
  transition: width 0.08s linear;
}

.ticker {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 32px;
  background: var(--ink);
  color: var(--paper);
  z-index: 150;
  overflow: hidden;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--ink);
}
.ticker__track {
  display: flex;
  white-space: nowrap;
  gap: 48px;
  padding-left: 48px;
  animation: ticker-scroll 38s linear infinite;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--paper-soft);
}
.ticker__item { display: inline-flex; align-items: center; gap: 12px; }
.ticker__dot {
  display: inline-block;
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}
.ticker__sep { color: var(--ink-dim); }
@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ─────────── NAV ─────────── */
.nav {
  position: fixed;
  top: 32px; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px var(--edge);
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), backdrop-filter 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(239, 234, 224, 0.86);
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  border-bottom-color: var(--rule);
}

.nav__brand { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.nav__brand svg { width: 32px; height: 32px; }
.nav__brand-name {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.015em;
  line-height: 1;
  font-style: italic;
}
.nav__brand-role {
  display: block;
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 0.66rem;
  color: var(--ink-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1;
}

.nav__links { display: flex; align-items: center; gap: 4px; }
.nav__link {
  padding: 10px 14px;
  font-family: var(--sans);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--ink-dim);
  position: relative;
  transition: color 0.25s var(--ease);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 4px;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}
.nav__link:hover,
.nav__link.is-current { color: var(--ink); }
.nav__link:hover::after,
.nav__link.is-current::after { transform: scaleX(1); }

.nav__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  margin-left: 12px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 999px;
}
.nav__badge-dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(1.35); opacity: 0.6; }
}

.nav__toggle {
  display: none;
  width: 44px; height: 44px;
  position: relative;
}
.nav__toggle span {
  position: absolute;
  left: 10px; right: 10px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.35s var(--ease), opacity 0.25s;
}
.nav__toggle span:nth-child(1) { top: 16px; }
.nav__toggle span:nth-child(2) { top: 22px; }
.nav__toggle span:nth-child(3) { top: 28px; }
.nav__toggle.is-open span:nth-child(1) { top: 22px; transform: rotate(45deg); }
.nav__toggle.is-open span:nth-child(2) { opacity: 0; }
.nav__toggle.is-open span:nth-child(3) { top: 22px; transform: rotate(-45deg); }

/* Case-page back link (replaces nav links) */
.nav__back {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
  transition: color 0.3s, border-color 0.3s, background 0.3s, padding 0.35s var(--ease);
}
.nav__back:hover {
  color: var(--paper);
  background: var(--ink);
  border-color: var(--ink);
  padding-left: 22px;
}
.nav__back-arrow { transition: transform 0.35s var(--ease); }
.nav__back:hover .nav__back-arrow { transform: translateX(-4px); }

.mobile-menu {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--paper);
  z-index: 90;
  padding: 120px var(--edge) 48px;
  transform: translateY(-100%);
  transition: transform 0.55s var(--ease);
  display: flex;
  flex-direction: column;
}
.mobile-menu.is-open { transform: translateY(0); }
.mobile-menu__link {
  display: block;
  padding: 20px 0;
  font-family: var(--serif);
  font-size: clamp(2.2rem, 8vw, 3.2rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1;
  border-top: 1px solid var(--rule);
  font-style: italic;
}
.mobile-menu__link:last-of-type { border-bottom: 1px solid var(--rule); }
.mobile-menu__meta {
  margin-top: auto;
  padding-top: 32px;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

/* ─────────── CUSTOM CURSOR ─────────── */
.cursor {
  position: fixed;
  top: 0; left: 0;
  width: 12px; height: 12px;
  background: var(--ink);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  mix-blend-mode: difference;
  transition: width 0.3s var(--ease), height 0.3s var(--ease), background 0.2s;
  will-change: transform;
}
.cursor.is-hover {
  width: 48px; height: 48px;
  background: var(--accent);
}
.cursor.is-text {
  width: 4px; height: 28px;
  border-radius: 1px;
}
@media (hover: none), (pointer: coarse) {
  .cursor { display: none; }
}

/* ─────────── REVEAL ─────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─────────── BUTTONS ─────────── */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  font-family: var(--sans);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  border-radius: 999px;
  transition: transform 0.4s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease);
  will-change: transform;
  white-space: nowrap;
}
.btn__inner {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: transform 0.4s var(--ease);
}
.btn__arrow {
  display: inline-flex;
  width: 28px; height: 28px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  transition: transform 0.45s var(--ease), background 0.3s;
}

.btn--primary {
  background: var(--ink);
  color: var(--paper);
}
.btn--primary .btn__arrow { background: rgba(255,255,255,0.14); }
.btn--primary:hover { background: var(--accent); }
.btn--primary:hover .btn__arrow { transform: rotate(-45deg); }

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--rule-strong);
}
.btn--ghost .btn__arrow { background: rgba(20, 18, 16, 0.08); }
.btn--ghost:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}
.btn--ghost:hover .btn__arrow {
  transform: rotate(-45deg);
  background: rgba(255,255,255,0.14);
}

/* ─────────── SECTION PRIMITIVES ─────────── */
.section {
  position: relative;
  padding-block: clamp(100px, 14vh, 180px);
}
.section--paper-deep { background: var(--paper-deep); }
.section--ink { background: var(--ink); color: var(--paper); }

.section-label {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 28px;
}
.section--ink .section-label { color: var(--paper-deep); }
.section-label__num {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 1rem;
  color: var(--accent);
  text-transform: none;
  letter-spacing: 0;
}
.section-label__line {
  flex: 1;
  height: 1px;
  background: var(--rule-strong);
  max-width: 120px;
}

.section-heading {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(2.4rem, 6vw, 5rem);
  line-height: 1;
  letter-spacing: -0.035em;
  color: var(--ink);
  font-variation-settings: "opsz" 144, "SOFT" 40;
}
.section--ink .section-heading { color: var(--paper); }
.section-heading em {
  font-style: italic;
  color: var(--accent);
  font-weight: 300;
  font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
}

/* ─────────── FOOTER ─────────── */
.footer {
  background: var(--paper);
  color: var(--ink);
  padding: 48px var(--edge) 40px;
  border-top: 1px solid var(--rule);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  max-width: var(--maxw);
  margin: 0 auto 48px;
  align-items: start;
}
.footer__col-label {
  display: block;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 14px;
}
.footer__links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer__link {
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--ink-soft);
  transition: color 0.3s;
}
.footer__link:hover { color: var(--accent); font-style: italic; }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-dim);
  flex-wrap: wrap;
  gap: 16px;
}
.footer__top-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  transition: color 0.3s;
}
.footer__top-btn:hover { color: var(--accent); }

/* ═══════════════════════════════════════════════════════
   CASE STUDY PAGE PRIMITIVES
   ═══════════════════════════════════════════════════════ */

/* ─── Case hero ─── */
.case-hero {
  position: relative;
  padding-top: clamp(140px, 18vh, 220px);
  padding-bottom: 40px;
}
.case-hero__breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 40px;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
  transition: color 0.3s;
}
.case-hero__breadcrumb:hover { color: var(--accent); }
.case-hero__breadcrumb-arrow { transition: transform 0.35s var(--ease); }
.case-hero__breadcrumb:hover .case-hero__breadcrumb-arrow { transform: translateX(-4px); }

.case-hero__meta-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 28px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.case-hero__meta-num {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 1rem;
  color: var(--accent);
  text-transform: none;
  letter-spacing: 0;
  margin-right: 10px;
}
.case-hero__category {
  color: var(--ink-soft);
  font-weight: 500;
}
.case-hero__readtime {
  font-family: var(--serif);
  font-style: italic;
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.9rem;
  color: var(--ink-dim);
}

.case-hero__title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(2.6rem, 7vw, 6rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
  color: var(--ink);
  max-width: 18ch;
  margin-bottom: 36px;
  font-variation-settings: "opsz" 144, "SOFT" 40;
}
.case-hero__title em {
  font-style: italic;
  color: var(--accent);
  font-weight: 300;
  font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
}

.case-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 56px;
}
.case-hero__tag {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
  padding: 6px 12px;
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
}

.case-hero__image {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--paper-deep);
  border: 1px solid var(--rule);
}
.case-hero__image img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.case-hero__image-caption {
  position: absolute;
  bottom: 16px; left: 16px; right: 16px;
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--paper);
  mix-blend-mode: difference;
}

/* ─── Case article body ─── */
.case-article {
  padding: clamp(80px, 12vh, 140px) 0 clamp(80px, 12vh, 140px);
}

.case-section {
  max-width: var(--prose);
  margin: 0 auto;
  padding-inline: var(--edge);
  margin-bottom: clamp(64px, 10vh, 96px);
}

.case-section__label {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 16px;
}
.case-section__label-num {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 1rem;
  color: var(--accent);
  text-transform: none;
  letter-spacing: 0;
}
.case-section__label-line {
  flex: 1;
  height: 1px;
  background: var(--rule);
  max-width: 80px;
}

.case-section__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--rule);
  font-variation-settings: "opsz" 144, "SOFT" 60;
}
.case-section__title em {
  font-style: italic;
  color: var(--accent);
  font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
}

.case-section h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.25rem, 1.9vw, 1.5rem);
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-top: 40px;
  margin-bottom: 16px;
}
.case-section h3 em {
  font-style: italic;
  color: var(--accent);
}

.case-section p {
  font-family: var(--serif);
  font-size: clamp(1.05rem, 1.2vw, 1.2rem);
  line-height: 1.65;
  letter-spacing: -0.005em;
  color: var(--ink-soft);
  margin-bottom: 20px;
}
.case-section p strong {
  font-weight: 600;
  color: var(--ink);
  font-style: italic;
}

.case-section__intro p:first-child::first-letter {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 300;
  font-size: 3.4em;
  float: left;
  line-height: 0.85;
  padding: 8px 10px 0 0;
  color: var(--accent);
  font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
}

/* Quote */
.case-quote {
  position: relative;
  margin: 48px 0;
  padding: 32px 40px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  font-family: var(--serif);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1.3rem, 2.2vw, 1.75rem);
  line-height: 1.35;
  letter-spacing: -0.015em;
  color: var(--ink);
  font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
}
.case-quote::before {
  content: "\201C";
  position: absolute;
  top: -4px; left: 10px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 4rem;
  color: var(--accent);
  line-height: 1;
  font-weight: 300;
}
.case-quote::after {
  content: "";
  display: block;
  position: absolute;
  bottom: -1px; left: 0;
  width: 48px;
  height: 2px;
  background: var(--accent);
}

.case-quote + p::first-letter {
  all: unset;
}

/* Figure + caption */
.case-figure {
  margin: 48px 0;
}
.case-figure--bleed {
  max-width: calc(var(--prose) + 160px);
  margin-left: 50%;
  transform: translateX(-50%);
}
.case-figure img {
  width: 100%;
  display: block;
  border: 1px solid var(--rule);
  background: var(--paper-deep);
}
.case-figure figcaption {
  margin-top: 14px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--ink-dim);
  text-align: center;
  letter-spacing: -0.005em;
}

/* Image grid */
.case-grid {
  display: grid;
  gap: 16px;
  margin: 40px 0;
}
.case-grid--2 { grid-template-columns: repeat(2, 1fr); }
.case-grid--3 { grid-template-columns: repeat(3, 1fr); }
.case-grid img { width: 100%; display: block; border: 1px solid var(--rule); background: var(--paper-deep); }

/* Info cards (pain points, objectives, etc) */
.case-cards {
  display: grid;
  gap: 16px;
  margin: 24px 0 32px;
}
.case-cards--2 { grid-template-columns: repeat(2, 1fr); }
.case-cards--3 { grid-template-columns: repeat(3, 1fr); }

.case-card {
  padding: 28px 24px;
  background: var(--paper-soft);
  border: 1px solid var(--rule);
  position: relative;
  transition: border-color 0.3s, background 0.3s;
}
.case-card:hover {
  border-color: var(--accent);
  background: var(--paper);
}
.case-card__num {
  display: block;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 1.1rem;
  color: var(--accent);
  margin-bottom: 10px;
}
.case-card__title {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-bottom: 8px;
  line-height: 1.25;
}
.case-card__desc {
  font-family: var(--serif);
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--ink-soft);
  margin: 0;
}

/* Meta strip (3 col data) */
.case-meta-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin: 32px 0 40px;
  border: 1px solid var(--rule);
  background: var(--paper-soft);
}
.case-meta-strip__item {
  padding: 24px;
  border-right: 1px solid var(--rule);
}
.case-meta-strip__item:last-child { border-right: 0; }
.case-meta-strip__label {
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 8px;
  display: block;
}
.case-meta-strip__value {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.case-meta-strip__value em {
  font-style: italic;
  color: var(--accent);
  font-weight: 400;
}

/* Persona card */
.case-persona {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 24px;
  background: var(--paper-soft);
  border: 1px solid var(--rule);
  transition: border-color 0.3s;
}
.case-persona:hover { border-color: var(--accent); }

.case-persona__img {
  width: 80px; height: 80px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  filter: grayscale(20%);
  border: 1px solid var(--rule);
}
.case-persona__role {
  display: block;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}
.case-persona__name {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-bottom: 10px;
  line-height: 1.2;
}
.case-persona__desc {
  font-family: var(--serif);
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0;
}

/* Principle list */
.case-principle {
  display: flex;
  gap: 16px;
  padding: 20px 24px;
  margin-bottom: 10px;
  background: var(--paper-soft);
  border-left: 2px solid var(--accent);
  border-right: 1px solid var(--rule);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  transition: transform 0.35s var(--ease);
}
.case-principle:hover { transform: translateX(4px); }

.case-principle__arrow {
  color: var(--accent);
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.3rem;
  line-height: 1.3;
  flex-shrink: 0;
}
.case-principle__title {
  display: block;
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}
.case-principle__desc {
  font-family: var(--serif);
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--ink-soft);
  margin: 0;
}

/* Swatch row (color palette display) */
.case-swatches {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin: 20px 0 40px;
}
.case-swatch__box {
  aspect-ratio: 3 / 2;
  border: 1px solid var(--rule);
  margin-bottom: 10px;
}
.case-swatch__label {
  font-family: var(--serif);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 2px;
  display: block;
}
.case-swatch__hex {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-dim);
  letter-spacing: 0.04em;
}

/* Proto embed */
.case-embed {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  background: var(--paper-deep);
  border: 1px solid var(--rule);
  overflow: hidden;
  margin: 24px 0 12px;
}
.case-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  border: 0;
}
.case-embed__hint {
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.9rem;
  text-align: center;
  color: var(--ink-dim);
  margin: 8px 0 24px;
}

/* Next case */
.case-next {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  padding: clamp(80px, 12vh, 140px) var(--edge);
  text-align: center;
  overflow: hidden;
}
.case-next__grain {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(177, 53, 34, 0.22) 0%, transparent 55%),
    radial-gradient(circle at 80% 70%, rgba(177, 53, 34, 0.14) 0%, transparent 55%);
  pointer-events: none;
}
.case-next > * { position: relative; z-index: 1; }
.case-next__label {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper-deep);
  margin-bottom: 16px;
}
.case-next__title {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 1;
  letter-spacing: -0.035em;
  color: var(--paper);
  transition: color 0.4s var(--ease), gap 0.4s var(--ease);
  font-variation-settings: "opsz" 144, "SOFT" 60;
}
.case-next__title em {
  font-style: italic;
  color: var(--accent);
  font-weight: 300;
  font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
}
.case-next__title:hover { color: var(--accent); gap: 32px; }
.case-next__arrow {
  display: inline-flex;
  width: 72px; height: 72px;
  border-radius: 50%;
  border: 1px solid rgba(245, 241, 232, 0.3);
  align-items: center;
  justify-content: center;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), transform 0.5s var(--ease);
}
.case-next__title:hover .case-next__arrow {
  background: var(--accent);
  border-color: var(--accent);
  transform: rotate(-20deg);
}

/* ═══════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .case-figure--bleed {
    max-width: 100%;
    margin-left: 0;
    transform: none;
  }
  .case-cards--3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .nav__links { display: none; }
  .nav__toggle { display: block; }

  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; gap: 12px; }

  .case-hero__title { max-width: 100%; }
  .case-cards--2, .case-cards--3 { grid-template-columns: 1fr; }
  .case-meta-strip { grid-template-columns: 1fr; }
  .case-meta-strip__item { border-right: 0; border-bottom: 1px solid var(--rule); }
  .case-meta-strip__item:last-child { border-bottom: 0; }
  .case-grid--2, .case-grid--3 { grid-template-columns: 1fr; }
  .case-persona { flex-direction: column; }
  .case-quote { padding: 28px 24px; font-size: 1.2rem; }
  .case-quote::before { font-size: 3rem; left: 6px; top: -2px; }
}

@media (max-width: 520px) {
  .nav { top: 32px; padding: 12px var(--edge); }
  .case-hero { padding-top: 130px; }
}

/* ─── Reduced motion ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .cursor { display: none; }
}