/* ============================================
   VF Portfolio — Design System
   tokens · base · components
   ============================================ */

/* ============================================
   TOKENS
   ============================================ */

:root {
  /* ---------- Type ---------- */
  --font-serif: 'Roslindale Display', serif;
  --font-sans:  'DM Sans', system-ui, sans-serif;
  --font-mono:  'DM Mono', 'IBM Plex Mono', ui-monospace, monospace;

  /* ---------- Color ---------- */
  --bg:       #FCF6EA;
  --bg-alt:   #F5EEE2;
  --ink:      #1A1814;
  --ink-70:   rgba(26, 24, 20, 0.72);
  --ink-50:   rgba(26, 24, 20, 0.5);
  --ink-30:   rgba(26, 24, 20, 0.3);
  --ink-15:   rgba(26, 24, 20, 0.15);
  --ink-08:   rgba(26, 24, 20, 0.08);
  --cream:    #FFFFFF;

  /* Accent */
  --accent:     #5753E0;
  --accent-ink: #FFFFFF;

  /* Palette */

  --col-blue:    #184EDD;
  --col-orange:  #ED6929;
  --col-peach:   #FFC093;
  --col-cyan:    #0696D1;
  --col-purple:  #A683E3;

  /* Hero colours */
  --col-vermillion: #FF3B0C;
  --col-amber:      #FDBB00;
  --col-blush:      #FDD8D2;
  --col-lemon:      #FFFF9B;
  --col-flame:      #FB6124;

  /* Hero palettes */
  --hero-1-bg: var(--col-vermillion); --hero-1-text: var(--col-amber);
  --hero-2-bg: var(--col-blush);      --hero-2-text: var(--col-vermillion);
  --hero-3-bg: var(--col-lemon);      --hero-3-text: var(--col-flame);

  --col-indigo: #5753E0;
  --col-brown:  #AC503E;

  /* ---------- Space ---------- */
  --s-1: 4px;  --s-2: 8px;   --s-3: 12px;  --s-4: 16px;
  --s-5: 24px; --s-6: 32px;  --s-7: 48px;  --s-8: 64px;
  --s-9: 96px; --s-10: 128px;

  /* Section rhythm */
  --section-y:     128px;
  --container-x:   clamp(24px, 5vw, 64px);
  --container-max: 1280px;

  /* ---------- Type scale ---------- */
  --fs-display: clamp(64px, 10vw, 136px);
  --fs-serif-1: clamp(56px, 8vw, 108px);
  --fs-serif-2: clamp(40px, 5vw, 72px);
  --fs-serif-3: clamp(22px, 2vw, 30px);
  --fs-heading: clamp(22px, 2vw, 30px);
  --fs-quote:   clamp(17px, 1.5vw, 21px);
  --fs-lead:    clamp(18px, 1.8vw, 24px);
  --fs-body:    16px;
  --fs-small:   14px;
  --fs-label:   11px;

  /* ---------- Misc ---------- */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --ease:      cubic-bezier(0.2, 0.6, 0.2, 1);
  --reveal-y:  16px;
}


/* ============================================
   BASE
   ============================================ */

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

html { scroll-behavior: smooth; background: var(--ink); }

.toast {
  position: fixed;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  padding: 0.6rem 1.2rem;
  border-radius: 100px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 9999;
  white-space: nowrap;
  transform: translateY(6px);
}
.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

img, svg, video { display: block; max-width: 100%; }

a {
  color: inherit;
  text-decoration: none;
  transition: color 180ms var(--ease), opacity 180ms var(--ease);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

p { margin: 0 0 1em; text-wrap: pretty; }
p:last-child { margin-bottom: 0; }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-variation-settings: 'wght' 400, 'wdth' 75;
  line-height: 1;
  margin: 0;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

/* ---- Roslindale type tokens ---- */
.t-display {
  font-family: 'Roslindale Display', serif;
  font-size: clamp(48px, 13vw, 102px);
  font-variation-settings: 'wght' 400, 'wdth' 75;
  letter-spacing: -0.02em;
  line-height: 1.05;
}
.t-title {
  font-family: 'Roslindale Display', serif;
  font-size: var(--fs-serif-2);
  font-variation-settings: 'wght' 400, 'wdth' 75;
  line-height: 1.05;
  letter-spacing: -0.02em;
}
.t-heading {
  font-family: 'Roslindale Display', serif;
  font-size: clamp(1.6rem, 3.2vw, 2.8rem);
  font-variation-settings: 'wght' 400, 'wdth' 75;
  line-height: 1.15;
  letter-spacing: -0.01em;
}
.t-heading-em {
  font-family: 'Roslindale Display', serif;
  font-size: clamp(1.6rem, 3.2vw, 2.8rem);
  font-variation-settings: 'wght' 700, 'wdth' 75;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

/* ---------- Layout ---------- */

.section {
  padding-top: var(--section-y);
  padding-bottom: var(--section-y);
  position: relative;
}
.section--bleed-accent { background: var(--accent);  color: var(--accent-ink); }
.section--white        { background: var(--cream); }

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left:  var(--container-x);
  padding-right: var(--container-x);
}

.section-label {
  font-family: var(--font-sans);
  font-size: var(--fs-label);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-50);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: var(--s-6);
}
.section-label::before {
  content: "";
  width: 32px;
  height: 1px;
  background: currentColor;
  opacity: 0.5;
}

.section-title {
  font-size: var(--fs-display-md);
  max-width: 18ch;
  margin-bottom: var(--s-7);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  transition: background 180ms var(--ease), color 180ms var(--ease),
              border-color 180ms var(--ease), transform 180ms var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary {
  background: var(--ink);
  color: var(--cream);
}
.btn--primary:hover { background: var(--accent); color: var(--accent-ink); }
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink-30);
}
.btn--ghost:hover { border-color: var(--ink); background: var(--ink); color: var(--cream); }
.btn--accent {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn--accent:hover { opacity: 0.9; transform: translateY(-1px); }
.btn--icon {
  width: 46px; height: 46px;
  padding: 0;
  justify-content: center;
  border: 1px solid var(--ink-08);
  background: transparent;
  color: var(--ink-70);
}
.btn--icon:hover { border-color: var(--ink); background: var(--ink); color: var(--cream); }
.btn .arrow {
  display: inline-block;
  transition: transform 200ms var(--ease);
}
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- Tags ---------- */

.tag {
  display: inline-block;
  padding: 5px 10px;
  border: 1px solid var(--ink-08);
  border-radius: 999px;
  font-size: var(--fs-label);
  color: var(--ink-50);
  font-family: var(--font-sans);
  letter-spacing: 0.06em;
}

/* ---------- Reveal ---------- */

.reveal {
  opacity: 0;
  transform: translateY(var(--reveal-y));
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
.reveal.is-in { opacity: 1; transform: translateY(0); }

/* ---------- Placeholder image ---------- */

.placeholder-img {
  position: relative;
  background:
    repeating-linear-gradient(135deg, var(--bg-alt) 0 10px, transparent 10px 20px),
    var(--bg);
  border: 1px solid var(--ink-08);
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  overflow: hidden;
  isolation: isolate;
}
.placeholder-img::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 60%, var(--bg) 100%);
  opacity: 0.4;
  pointer-events: none;
}
.placeholder-img__label {
  position: relative;
  z-index: 2;
  font-family: var(--font-sans);
  font-size: var(--fs-label);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-50);
  padding: 10px 14px;
  background: var(--bg);
  border-top: 1px solid var(--ink-08);
  border-right: 1px solid var(--ink-08);
  width: 100%;
}
.placeholder-img__label::before { content: "◇ "; opacity: 0.6; }

/* ---------- Inline link ---------- */

.link-underline {
  position: relative;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 100% 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  padding-bottom: 1px;
  transition: background-size 300ms var(--ease), color 180ms var(--ease);
}
.link-underline:hover { background-size: 0% 1px; color: var(--accent); }

/* ---------- Utilities ---------- */

.mono  { font-family: var(--font-sans); }
.serif { font-family: var(--font-serif); }
.text-accent { color: var(--accent); }
.muted { color: var(--ink-50); }

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0ms !important; transition-duration: 0ms !important; }
  .reveal { opacity: 1; transform: none; }
}


/* ============================================
   COMPONENTS
   ============================================ */

/* ---------- Nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 200ms var(--ease), background 200ms var(--ease);
}
.nav.is-scrolled { border-bottom-color: var(--ink-08); }

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
  gap: 24px;
}
.nav__logo {
  font-family: var(--font-serif);
  font-size: 28px;
  line-height: 1;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.nav__logo::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
  margin-top: 14px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
  flex: 1;
}
.nav__link {
  font-size: 14px;
  color: var(--ink-70);
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 100% 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  padding-bottom: 1px;
  transition: color 180ms var(--ease), background-size 300ms var(--ease);
}
.nav__link:hover { color: var(--accent); background-size: 0% 1px; }

.nav__link[data-copy-email] {
  background-image: none;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1.5px;
  font-size: var(--fs-body);
  font-weight: 300;
  color: var(--ink);
}
.nav__link[data-copy-email]:hover {
  color: var(--accent);
  text-decoration: underline;
}

.nav__contextual {
  display: flex;
  align-items: center;
  gap: 24px;
  flex: 1;
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity 240ms var(--ease), transform 240ms var(--ease);
}
.nav.links-visible .nav__contextual {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
@media (max-width: 820px) { .nav__contextual { display: none; } }

.nav__right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--cream) !important;
  font-size: 14px;
  transition: background 180ms var(--ease);
  white-space: nowrap;
}
.nav__cta:hover { background: var(--accent); }


/* ---------- Hero (editorial) ---------- */

.hero {
  /* height set by JS */
}

.hero .container {
  height: 100%;
}

.hero__stage {
  position: sticky;
  /* top + height set by JS */
  width: 100%;
  overflow: hidden;
  border-radius: 12px;
}

.hero__letter {
  font-family: 'Roslindale Display', serif;
  display: inline-block;
  white-space: pre;
  position: absolute;
  letter-spacing: 0.01em;
}

.tagline-section {
  padding: clamp(80px, 10vw, 140px) 0;
}

.tagline {
  color: var(--ink);
  padding: 0 clamp(24px, 5vw, 80px);
  text-align: center;
}

/* ---------- About ---------- */

.about-section {
  padding: clamp(64px, 8vw, 120px) 0;
  background: var(--col-brown);
}

.about-cols__portrait-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-md);
  display: block;
}

.about-bio {
  margin-bottom: clamp(48px, 6vw, 80px);
}
.about-bio p {
  font-family: 'Roslindale Display', serif;
  font-size: clamp(1.6rem, 3.2vw, 2.8rem);
  font-variation-settings: 'wght' 700, 'wdth' 75;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-wrap: pretty;
}
.about-bio p + p {
  margin-top: 1em;
}

.about-rule {
  border: none;
  border-top: 1px solid var(--ink-15);
  margin: 0 0 clamp(40px, 5vw, 64px);
}

.about-cols {
  display: grid;
  grid-template-columns: 280px 1fr 1fr 1fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}

.about-cols__portrait {
  width: 280px;
  aspect-ratio: 3/4;
  border-radius: var(--radius-md);
}

.about-cols__col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.about-cols__heading {
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  font-weight: 900;
  font-variation-settings: normal;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 0 0 1.2em 0;
  padding: 0;
  width: 100%;
}

.about-cols__list {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.9em;
}
.about-cols__list li {
  display: flex;
  flex-direction: column;
  gap: 0.1em;
  padding: 0;
  margin: 0;
}
.about-cols__org {
  font-size: var(--fs-body);
  font-weight: 900;
  color: var(--ink);
}
.about-cols__meta {
  font-size: var(--fs-body);
  font-weight: 300;
  color: var(--ink);
}
.about-cols__list a {
  font-size: var(--fs-body);
  font-weight: 300;
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1.5px;
}
.about-cols__list a:hover { color: var(--accent); }

@media (max-width: 900px) {
  .about-cols {
    grid-template-columns: 1fr 1fr;
  }
  .about-cols__portrait {
    grid-column: 1 / -1;
    max-width: 320px;
  }
}
@media (max-width: 560px) {
  .about-cols { grid-template-columns: 1fr; }
  .about-cols__portrait { max-width: 260px; }
}

/* ---------- Work / Case studies list ---------- */

.work-section {
  padding: clamp(64px, 8vw, 120px) 0;
}

.work-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.work-item {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--ink-15);
}


.work-item__link {
  display: block;
  padding: clamp(20px, 2.5vw, 32px) 0;
  text-decoration: none;
  cursor: pointer;
}

.work-item__name {
  font-family: 'Roslindale Display', serif;
  font-size: clamp(2.8rem, 5.5vw, 5.5rem);
  font-variation-settings: 'wght' 400, 'wdth' 75;
  line-height: 1.05;
  color: var(--ink);
  transition: font-variation-settings 0.25s ease;
}

.work-item.is-active .work-item__name {
  font-variation-settings: 'wght' 700, 'wdth' 100;
}

.work-item__detail {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows 0.3s ease, opacity 0.3s ease, margin 0.3s ease;
  margin-top: 0;
}
.work-item__detail > * { overflow: hidden; }

.work-item.is-active .work-item__detail {
  grid-template-rows: 1fr;
  opacity: 1;
  margin-top: 10px;
}

.work-item__subtitle {
  font-family: var(--font-sans);
  font-size: var(--fs-quote);
  color: var(--ink);
  line-height: 1.35;
  text-wrap: pretty;
  margin-bottom: 8px;
}

.work-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  margin-top: 6px;
}
.wtag {
  display: inline-flex;
  align-items: center;
  font-size: var(--fs-body);
  letter-spacing: 0.04em;
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid currentColor;
}
.wtag { color: var(--ink); }

.work-key {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--s-6);
}
.work-key .wtag { cursor: pointer; transition: background 180ms, opacity 180ms, color 180ms, border-color 180ms; }
@media (hover: hover) {
  .work-key .wtag:hover { color: var(--accent); border-color: var(--accent); }
}
.work-key.has-active .wtag:not(.is-active) { opacity: 0.35; }
.work-key .wtag.is-active {
  color: var(--accent);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}
.work-item { transition: opacity 250ms var(--ease); }
.work-item.is-filtered { opacity: 0.15; pointer-events: none; }

/* Right-side image panel — shifts vertically to track hovered item */
@media (max-width: 800px) {
  .work-item__preview { display: none; }
  .work-item__detail { grid-template-rows: 1fr; opacity: 1; margin-top: 10px; }
}

/* ---------- Manifesto / Principles ---------- */

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  border-top: 1px solid var(--ink-08);
  padding-top: 40px;
}
.principle { padding-right: 24px; }
.principle__num {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-50);
  margin-bottom: 12px;
}
.principle__title {
  font-family: var(--font-serif);
  font-size: var(--fs-heading);
  line-height: 1.2;
  margin-bottom: 8px;
}
.principle__text { font-size: 14px; color: var(--ink-70); line-height: 1.5; }

@media (max-width: 800px) {
  .principles { grid-template-columns: 1fr; gap: 32px; }
}

/* ---------- Case study filters ---------- */

.case-card.is-hidden {
  display: none;
}

/* ---------- Case studies ---------- */

.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px 32px;
}
@media (max-width: 900px) { .case-grid { grid-template-columns: 1fr; gap: 48px; } }

.case-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  color: inherit;
  transition: transform 300ms var(--ease);
}

.case-card__media {
  aspect-ratio: 4/3;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  transition: background-color 300ms var(--ease);
  box-shadow: inset 0 0 0 1px var(--ink-08);
}
.case-card__media .placeholder-img { width: 100%; height: 100%; }
.case-card__img { width: 100%; height: 100%; object-fit: cover; display: block; }
.case-card__media::before {
  content: 'View case study →';
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--cream);
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 300ms var(--ease);
  z-index: 5;
  pointer-events: none;
}
.case-card:hover .case-card__media::before { opacity: 1; }
.case-card .placeholder-img__label { display: none; }
.case-card .placeholder-img {
  background: repeating-linear-gradient(135deg, rgba(0,0,0,0.06) 0 10px, transparent 10px 20px);
  border: none;
}
.case-card__media::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 300ms var(--ease);
  z-index: 3;
}

.case-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-sans);
  font-size: var(--fs-label);
  letter-spacing: 0.06em;
  color: var(--ink-50);
}
.case-card__meta strong { color: var(--ink); font-weight: 500; }

.case-card__title {
  font-family: var(--font-serif);
  font-size: var(--fs-heading);
  line-height: 1.15;
  letter-spacing: -0.01em;
  text-wrap: balance;
  max-width: 22ch;
}
.case-card__tags { display: flex; flex-wrap: wrap; gap: 6px; }

/* ---------- Recommendations ---------- */

/* Desktop: horizontal scroll showing ~2.5 cards */
.rec-cards {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  overscroll-behavior-x: contain;
  min-width: 0;
  padding-bottom: 4px;
}
.rec-cards::-webkit-scrollbar { display: none; }

.rec-card {
  flex: 0 0 min(380px, 78vw);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 24px;
  background: var(--cream);
  border: 1px solid var(--ink-08);
  border-radius: var(--radius-lg);
  padding: 36px 36px 32px;
}

.rec-controls { display: none; }

/* Mobile: single card + arrow controls */
@media (max-width: 700px) {
  .rec-cards { display: block; overflow: visible; padding-bottom: 0; }
  .rec-card { display: none; }
  .rec-card.is-active { display: flex; }
  .rec-controls { display: flex; align-items: center; gap: var(--s-4); margin-top: var(--s-5); }
}

.rec-card__quote {
  font-family: var(--font-sans);
  font-size: var(--fs-quote);
  line-height: 1.35;
  color: var(--ink);
  flex: 1;
  text-wrap: pretty;
}
.rec-card__quote::before { content: "\201C"; }
.rec-card__quote::after  { content: "\201D"; }

.rec-card__meta {
  display: flex;
  gap: 14px;
  align-items: center;
  border-top: 1px solid var(--ink-08);
  padding-top: 24px;
}
.rec-card__avatar {
  width: 48px; height: 48px;
  border-radius: 999px;
  background: var(--ink-08);
  overflow: hidden;
  flex-shrink: 0;
}
.rec-card__avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }
.rec-card__name { font-size: var(--fs-body); font-weight: 500; color: var(--ink); margin-bottom: 2px; }
.rec-card__role { font-size: var(--fs-small); color: var(--ink-70); line-height: 1.35; }

.rec-controls__count {
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  color: var(--ink-50);
}
.rec-controls__btn {
  width: 44px; height: 44px;
  border-radius: 999px;
  border: 1px solid var(--ink-15);
  background: transparent;
  color: var(--ink);
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: background 200ms var(--ease), border-color 200ms var(--ease), color 200ms var(--ease);
  flex-shrink: 0;
}
@media (hover: hover) {
  .rec-controls__btn:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
}
.rec-controls__btn:active { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.rec-controls__btn:disabled { opacity: 0.3; cursor: default; }

/* ---------- Skills ---------- */

.skills-list {}

.skill-row {
  display: grid;
  grid-template-columns: 80px 1fr 2fr;
  gap: 32px;
  align-items: baseline;
  padding: 28px 0;
  border-bottom: 1px solid var(--ink-08);
}

.skill-row__num {
  font-family: var(--font-sans);
  font-size: var(--fs-label);
  color: var(--ink-50);
  letter-spacing: 0.06em;
}
.skill-row__title {}
.skill-row__body {
  font-size: var(--fs-quote);
  line-height: 1.35;
  color: var(--ink);
  text-wrap: pretty;
  margin: 0;
}

@media (max-width: 800px) {
  .skill-row { grid-template-columns: 60px 1fr; gap: 8px 20px; padding: 20px 0; }
  .skill-row__body { grid-column: 2; }
}
@media (max-width: 500px) {
  .skill-row { grid-template-columns: 1fr; gap: 6px; }
  .skill-row__num { font-size: 11px; }
  .skill-row__body { grid-column: 1; }
}

/* Logo row */
.logo-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 0;
  border-bottom: 1px solid var(--ink-08);
  margin-bottom: 0;
  flex-wrap: wrap;
  gap: 24px;
}
.logo-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.logo-item__img {
  width: 28px;
  height: 28px;
  object-fit: contain;
  filter: grayscale(1) opacity(0.3);
  transition: filter 220ms var(--ease);
}

.logo-item__name {
  font-family: var(--font-sans);
  font-size: var(--fs-label);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-50);
}

/* Tools row */
.tools {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px 32px;
}
@media (max-width: 900px) { .tools { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 600px) { .tools { grid-template-columns: repeat(2, 1fr); } }

.tool-group__label {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-50);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ink-08);
}
.tool-group__items {
  list-style: none;
  padding: 0; margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.tool-group__items li { font-size: 14px; color: var(--ink); }



/* ---------- Reading ---------- */

/* ---------- Sidebar layout experiment ----------
   To revert: remove .section--sl from each section and remove the
   <div class="sl"><span class="sl__label">…</span><div class="sl__body"> wrappers.
   ------------------------------------------------ */
.section--sl {
  padding-top: clamp(64px, 8vw, 120px);
  padding-bottom: clamp(64px, 8vw, 120px);
}
.section--cs {
  padding-top: clamp(24px, 3vw, 40px);
  padding-bottom: clamp(24px, 3vw, 40px);
}
.sl {
  display: flex;
  align-items: flex-start;
  gap: var(--s-6);
}
.sl__label {
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  font-weight: 900;
  font-variation-settings: normal;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  white-space: nowrap;
  flex-shrink: 0;
  width: 160px;
  padding-top: 3px;
}
.sl__body {
  flex: 1;
  min-width: 0;
}
@media (max-width: 700px) {
  .sl { flex-direction: column; gap: var(--s-4); }
  .sl__label { width: auto; }
}
/* ------------------------------------------------ */

.reading-section {
  padding: 0;
}
.reading-section .container {
  background: #FFFF04;
  border-radius: var(--radius-lg);
  padding: var(--s-6) var(--container-x);
}
.reading-section .reading-link { border-bottom-color: rgba(0,0,0,0.12); }
.reading-section .reading-bar__label { color: rgba(0,0,0,0.5); }

.reading-bar {
  display: flex;
  align-items: baseline;
  gap: var(--s-6);
  flex-wrap: wrap;
}

.reading-bar__label {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-50);
  white-space: nowrap;
  flex-shrink: 0;
}

.reading-bar__list {
  display: flex;
  flex-direction: column;
  gap: 0;
  flex: 1;
}

.reading-link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--ink-08);
  color: inherit;
  transition: padding-left 180ms var(--ease);
}
.reading-link:last-child { border-bottom: none; }
.reading-link:hover { padding-left: 8px; }

.reading-link__title {
  font-size: 14px;
  font-weight: 500;
  flex: 1;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  min-width: 0;
}
.reading-link__date {
  font-family: var(--font-sans);
  font-size: var(--fs-label);
  color: var(--ink-50);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}
.reading-link__meta {
  font-family: var(--font-sans);
  font-size: var(--fs-label);
  color: var(--ink-50);
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.reading-link__arrow {
  font-size: var(--fs-label);
  color: var(--ink-50);
  transition: color 180ms var(--ease), transform 180ms var(--ease);
}
.reading-link:hover .reading-link__arrow { color: var(--accent); transform: translate(2px, -2px); }

@media (max-width: 600px) {
  .reading-bar { flex-direction: column; gap: var(--s-3); }
  .reading-link__meta { display: none; }
}

/* ---------- Footer ---------- */

.footer {
  background: var(--bg-alt);
  color: var(--ink);
  padding: 96px 0 40px;
  margin-top: 80px;
}
.footer__nav {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  padding-bottom: var(--s-6);
  border-bottom: 1px solid var(--ink-08);
}
.footer__cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: var(--fs-body);
  font-weight: 500;
  transition: opacity 180ms var(--ease), transform 180ms var(--ease);
  align-self: flex-start;
}
.footer__cta:hover { opacity: 0.88; transform: translateY(-1px); }
.footer__cta .arrow { display: inline-block; transition: transform 200ms var(--ease); }
.footer__cta:hover .arrow { transform: translateX(3px); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-family: var(--font-sans);
  font-size: var(--fs-label);
  color: var(--ink-50);
  letter-spacing: 0.12em;
  flex-wrap: wrap;
  gap: 12px;
}
.footer__bottom a:hover { color: var(--accent); }

.site-footer {
  background: #6BFD00;
  color: #000;
  padding: var(--s-6) 0;
  padding-bottom: calc(var(--s-6) + env(safe-area-inset-bottom));
  font-family: var(--font-sans);
  font-size: var(--fs-body);
}
.site-footer__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-x);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--s-4);
}
.site-footer__links {
  display: flex;
  gap: var(--s-5);
  align-items: center;
}
.site-footer__link {
  color: #000;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1.5px;
  transition: color 180ms var(--ease);
}
.site-footer__link:hover {
  color: var(--accent);
}

/* ---------- Case study pages ---------- */

.cs-back {
  font-size: var(--fs-body);
  font-weight: 300;
  color: var(--ink);
  text-transform: none;
  letter-spacing: 0;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1.5px;
  display: inline-block;
  transition: color 180ms var(--ease);
}
.cs-back:hover { color: var(--accent); }

.cs-title {
  max-width: 22ch;
  margin-top: var(--s-4);
}

.cs-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--s-6);
}

/* ---- Stat bar ---- */
.stat-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat-bar__item {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  padding: 0 var(--s-6);
  border-left: 1px solid var(--ink-15);
}
.stat-bar__item:first-child {
  padding-left: 0;
  border-left: none;
}
.stat-bar__label {
  font-size: var(--fs-small);
  color: var(--ink-50);
  line-height: 1.4;
}
@media (max-width: 600px) {
  .stat-bar { grid-template-columns: repeat(2, 1fr); row-gap: var(--s-6); }
  .stat-bar__item:nth-child(odd) { padding-left: 0; border-left: none; }
  .stat-bar__item--hide-mobile { display: none; }
}

.cs-cover {
  display: none;
}
.cs-cover__img {
  aspect-ratio: 16/9;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--bg-alt);
  position: relative;
}
.cs-cover__img--contain { background: var(--bg); }
.cs-cover__img img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.cs-cover__img--contain img { object-fit: contain; }
.cs-cover__img::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--ink-08);
  border-radius: var(--radius-md);
  z-index: 2;
  pointer-events: none;
}

.cs-soon p {
  font-size: var(--fs-body);
  color: var(--ink-70);
  line-height: 1.65;
  max-width: 48ch;
  margin-bottom: var(--s-5);
}

.cs-section-title {
  margin-bottom: var(--s-4);
  color: var(--ink);
}

.cs-body p {
  font-size: var(--fs-body);
  color: var(--ink-70);
  line-height: 1.65;
  max-width: 60ch;
  margin-bottom: 1.4em;
}
.cs-body p:last-child { margin-bottom: 0; }

.cs-figure {
  margin: var(--s-6) 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--ink-08);
}
.cs-figure__placeholder {
  aspect-ratio: 16/9;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: var(--fs-label);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-50);
}
.cs-figure figcaption {
  padding: var(--s-3) var(--s-4);
  font-family: var(--font-sans);
  font-size: var(--fs-label);
  color: var(--ink-50);
  letter-spacing: 0.06em;
  border-top: 1px solid var(--ink-08);
  line-height: 1.5;
}

.cs-figure-pair {
  display: flex;
  gap: var(--s-3);
  margin: var(--s-6) 0;
  align-items: flex-start;
}
.cs-figure-pair .cs-figure {
  margin: 0;
  min-width: 0;
  flex: 1;
}
.cs-figure-pair .cs-figure img {
  width: 100%;
  height: auto;
  object-fit: contain;
}
@media (max-width: 600px) {
  .cs-figure-pair { flex-direction: column; }
  .cs-figure-pair .cs-figure { flex: none; width: 100%; }
}

/* ---------- Case study slideshow ---------- */
.cs-slideshow {
  position: relative;
  background: var(--bg);
}
.cs-slideshow__track {
  display: grid;
}
.cs-slideshow__slide {
  grid-column: 1;
  grid-row: 1;
  opacity: 0;
  transition: opacity 350ms ease;
  pointer-events: none;
}
.cs-slideshow__slide--active {
  opacity: 1;
  pointer-events: auto;
}
.cs-slideshow__slide img {
  width: 100%;
  display: block;
}
.cs-slideshow__nav {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--s-3);
  pointer-events: none;
}
.cs-slideshow__btn {
  pointer-events: auto;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: var(--ink);
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  transition: background 200ms, opacity 200ms;
  line-height: 1;
}
.cs-slideshow__btn:hover:not(:disabled) { background: rgba(255, 255, 255, 1); }
.cs-slideshow__btn:disabled { opacity: 0.25; cursor: default; }

/* ---------- Lightbox ---------- */
.cs-figure img,
.cs-cover__img img {
  cursor: zoom-in;
}
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 900;
  overflow-y: auto;
  opacity: 0;
  pointer-events: none;
  transition: opacity 250ms ease;
  cursor: zoom-out;
  padding: 5vh 5vw;
}
.lightbox.is-open {
  opacity: 1;
  pointer-events: auto;
}
.lightbox__img {
  display: block;
  margin: 0 auto;
  width: 100%;
  max-width: min(90vw, 1400px);
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
  cursor: default;
}
.lightbox__nav {
  position: fixed;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  display: none;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--s-4);
  pointer-events: none;
  z-index: 901;
}
.lightbox__btn {
  pointer-events: auto;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 200ms, opacity 200ms;
}
.lightbox__btn:hover:not(:disabled) { background: rgba(255, 255, 255, 0.3); }
.lightbox__btn:disabled { opacity: 0.2; cursor: default; }