/* ============================================================
   Chiron — Case Study
   Design system: "Take Aim"
   Built around the project's own name and tagline: Chiron, the
   centaur archer and mentor of Greek myth. The signature motif
   is a target reticle — concentric rings used as the section
   marker, standing in for both "take aim and shoot for your
   goals" (the product's tagline) and the actual shape of this
   project: a team finding its mark on a first attempt, with
   one teammate who'd already drawn the bow before.

   Palette: near-black dusk base (a nod to the deck's own dark
   slides) with a bronze/ochre "fletching" accent standing in
   for brass, leather, and wood — archery's real materials,
   not a generic gold. A quiet sage marks anything that landed
   (testing results, things that worked); the bronze is reserved
   for aim, draw, and release — the act itself, not the outcome.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Russo+One&family=Titillium+Web:ital,wght@0,400;0,600;0,700;1,400;1,600&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --dusk:        #14171F;
  --dusk-2:      #191D27;
  --surface:     #1F2430;
  --surface-2:   #262C3A;
  --paper:       #F3EFE6;
  --ink-soft:    #C7CCD6;
  --ink-quiet:   #868EA0;
  --line:        #2B313F;
  --line-strong: #3A4254;

  --bronze:      #C58A3F;
  --bronze-bright: #DDA659;
  --bronze-soft: rgba(197, 138, 63, 0.14);
  --bronze-line: rgba(197, 138, 63, 0.32);

  --sage:        #7C9A7E;
  --sage-bright: #9AB89C;
  --sage-soft:   rgba(124, 154, 126, 0.14);
  --sage-line:   rgba(124, 154, 126, 0.32);

  --display: 'Russo One', -apple-system, BlinkMacSystemFont, sans-serif;
  --sans:    'Titillium Web', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono:    'JetBrains Mono', 'SF Mono', monospace;

  --measure: 660px;
  --measure-wide: 960px;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;
  --space-7: 9rem;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--dusk);
  color: var(--ink-soft);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
}

a { color: var(--bronze-bright); text-decoration: none; }

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--bronze-bright);
  outline-offset: 3px;
  border-radius: 2px;
}

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

/* ---------- Reticle spine — the page's connective signature ----------
   A faint vertical line down the page center, broken at intervals
   by concentric ring "ticks" instead of a solid stroke — a nod to
   range markings on a target without drawing a literal bullseye
   down the whole page. */

.reticle-spine {
  position: fixed;
  top: 0;
  left: 50%;
  width: 1px;
  height: 100%;
  background: var(--line);
  z-index: 1;
  pointer-events: none;
}

.reticle-spine::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: var(--reticle-progress, 0%);
  background: linear-gradient(180deg, var(--bronze-bright), var(--bronze));
  transition: height 0.1s linear;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-5);
  background: rgba(20, 23, 31, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.site-header .logo {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.site-header .logo img {
  height: 28px;
  width: auto;
  display: block;
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.site-header nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
  position: relative;
  padding-bottom: 2px;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.site-header nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0%;
  height: 1px;
  background: var(--bronze-bright);
  transition: width 0.25s ease;
}

.site-header nav a:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  color: var(--paper);
  cursor: pointer;
  border-radius: 8px;
}

.nav-toggle:hover { background: var(--surface); }

.nav-links-mobile {
  display: none;
  list-style: none;
  flex-direction: column;
  background: var(--surface);
  border-bottom: 1px solid var(--line-strong);
  position: relative;
  z-index: 49;
  margin: 0;
  padding: 0;
}

.nav-links-mobile.is-open { display: flex; }

.nav-links-mobile li { border-top: 1px solid var(--line); }
.nav-links-mobile li:first-child { border-top: none; }

.nav-links-mobile a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 0 var(--space-3);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-soft);
}

/* ---------- Hero ---------- */

.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-6) var(--space-3) var(--space-5);
  position: relative;
  z-index: 2;
  overflow: hidden;
}

/* Target reticle mark above the headline */
.hero-target {
  width: 72px;
  height: 72px;
  margin-bottom: var(--space-4);
  opacity: 0;
  animation: rise 1.1s ease forwards, drift-in 1.4s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: 0.1s, 0.1s;
}

.hero-target svg { width: 100%; height: 100%; }

@keyframes drift-in {
  from { transform: scale(0.7) rotate(-8deg); }
  to { transform: scale(1) rotate(0deg); }
}

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bronze-bright);
  margin-bottom: var(--space-3);
  opacity: 0;
  animation: rise 0.9s ease forwards;
  animation-delay: 0.3s;
}

.hero h1 {
  font-family: var(--display);
  font-weight: 400;
  font-style: normal;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.18;
  color: var(--paper);
  max-width: 18ch;
  margin: 0 0 var(--space-4);
  opacity: 0;
  animation: rise 1s ease forwards;
  animation-delay: 0.45s;
}

.hero p.lede {
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  color: var(--ink-quiet);
  max-width: 44ch;
  margin: 0 auto var(--space-5);
  opacity: 0;
  animation: rise 1s ease forwards;
  animation-delay: 0.65s;
}

.hero .scroll-cue {
  opacity: 0;
  animation: rise 1s ease forwards, float 2.6s ease-in-out infinite;
  animation-delay: 0.85s, 1.8s;
  color: var(--bronze-bright);
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  font-weight: 500;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ---------- Metadata strip ---------- */

.meta-strip {
  max-width: var(--measure-wide);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5) var(--space-6);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  position: relative;
  z-index: 2;
}

.meta-item .label {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bronze-bright);
  margin-bottom: 0.35rem;
  display: block;
}

.meta-item .value {
  font-size: 0.95rem;
  color: var(--paper);
}

/* ---------- Sections ---------- */

.section {
  max-width: var(--measure);
  margin: 0 auto;
  padding: var(--space-6) var(--space-3);
  scroll-margin-top: 90px;
  position: relative;
  z-index: 2;
}

.section.wide { max-width: var(--measure-wide); }

.section-head {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.section-mark {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--bronze-bright);
}

.section h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.35rem, 2.7vw, 1.9rem);
  color: var(--paper);
  margin: 0;
}

.section p {
  margin: 0 0 var(--space-3);
  color: var(--ink-soft);
}

.section p.hook-line {
  font-family: var(--sans);
  font-style: italic;
  font-size: clamp(1.15rem, 3vw, 1.4rem);
  line-height: 1.5;
  color: var(--paper);
  text-align: center;
  max-width: 38ch;
  margin: 0 auto;
}

.fade-in {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Team strip ---------- */

.team-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-3) 0 var(--space-4);
}

.team-chip {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--paper);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
}

.team-chip.lead {
  background: var(--bronze-soft);
  border-color: var(--bronze-line);
  color: var(--bronze-bright);
}

/* ---------- Honest framing / placeholder callouts ---------- */

.note {
  background: var(--surface);
  border-left: 3px solid var(--bronze);
  border-radius: 4px;
  padding: var(--space-3) var(--space-4);
  margin: var(--space-3) 0 var(--space-4);
}

.note .note-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--bronze-bright);
  display: block;
  margin-bottom: 0.4rem;
}

.note p { margin: 0; color: var(--ink-soft); }

/* ---------- Stat grid (research data) ---------- */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin: var(--space-4) 0;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: var(--space-3) var(--space-4);
}

.stat-card .stat-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-quiet);
  display: block;
  margin-bottom: var(--space-2);
}

.stat-card .stat-num {
  font-family: var(--display);
  font-style: normal;
  font-size: 1.7rem;
  color: var(--bronze-bright);
  display: block;
  line-height: 1;
  margin-bottom: 0.3rem;
}

.stat-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

/* ---------- Persona card ---------- */

.persona-card {
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  padding: var(--space-4);
  margin: var(--space-4) 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
}

.persona-avatar {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: var(--surface-2);
  border: 2px solid var(--bronze-line);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bronze-bright);
}

.persona-avatar svg { width: 38px; height: 38px; }

.persona-name {
  font-family: var(--display);
  font-weight: 400;
  font-style: normal;
  font-size: 1.15rem;
  color: var(--paper);
  margin: 0 0 0.2rem;
}

.persona-quote {
  font-size: 0.9rem;
  color: var(--ink-quiet);
  margin: 0 0 var(--space-3);
}

.persona-facts {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-quiet);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-bottom: var(--space-3);
}

.persona-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.persona-cols h4 {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 0.6rem;
}

.persona-cols .goals h4 { color: var(--sage-bright); }
.persona-cols .pains h4 { color: var(--bronze-bright); }

.persona-cols ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.persona-cols li {
  font-size: 0.88rem;
  color: var(--ink-soft);
  padding-left: 0.9rem;
  position: relative;
}

.persona-cols li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
}

.persona-cols .goals li::before { background: var(--sage-bright); }
.persona-cols .pains li::before { background: var(--bronze-bright); }

/* ---------- Mentor / experience-gap block (signature framing) ----------
   Two unequal columns: a narrow "drawn bow" column (prior experience)
   beside a wider "the other three" column, converging into a single
   resolution line below — visualizing the project's real throughline
   without literal bow-and-arrow iconography. */

.draw-block {
  margin: var(--space-4) 0;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: var(--space-3);
  align-items: stretch;
}

.draw-card {
  background: var(--surface);
  border-radius: 10px;
  padding: var(--space-4);
  border: 1px solid var(--line);
}

.draw-card.lead { border-color: var(--bronze-line); }

.draw-card .who {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
  display: block;
}

.draw-card.lead .who { color: var(--bronze-bright); }
.draw-card.team .who { color: var(--ink-quiet); }

.draw-card p { margin: 0; font-size: 0.95rem; }

.draw-resolution {
  text-align: center;
  font-family: var(--sans);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--paper);
  margin-top: var(--space-3);
}

/* ---------- Competitor row ---------- */

.competitor-row {
  display: flex;
  gap: var(--space-3);
  margin: var(--space-3) 0 var(--space-4);
  flex-wrap: wrap;
}

.competitor-chip {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.5rem 1.1rem 0.5rem 0.6rem;
}

.competitor-chip .dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bronze-bright);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  flex-shrink: 0;
}

.competitor-chip span.name {
  font-size: 0.85rem;
  color: var(--ink-soft);
  font-weight: 500;
}

/* ---------- Range markers — the project's literal sequence ----------
   Numbered steps are earned here: this section IS the user flow,
   a real ordered sequence the screens have to follow. */

.range-path {
  margin: var(--space-4) 0;
  display: flex;
  flex-direction: column;
}

.range-step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: var(--space-3);
  position: relative;
  padding-bottom: var(--space-3);
}

.range-step:last-child { padding-bottom: 0; }

.range-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.range-marker .range-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1.5px solid var(--bronze-line);
  color: var(--bronze-bright);
  font-family: var(--mono);
  font-weight: 600;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.range-marker .range-line {
  flex: 1;
  width: 1px;
  background: var(--line-strong);
  margin-top: 0.3rem;
  min-height: 0.6rem;
}

.range-step:last-child .range-marker .range-line { display: none; }

.range-content {
  padding-top: 0.3rem;
}

.range-content h4 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--paper);
  margin: 0 0 0.2rem;
}

.range-content p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--ink-quiet);
}

/* ---------- Subsection blocks (Design Decisions) ---------- */

.subsection {
  padding: var(--space-3) 0;
  border-top: 1px solid var(--line);
}

.subsection:first-of-type { border-top: none; padding-top: 0; }

.subsection h3 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 1.05rem;
  color: var(--paper);
  margin: 0 0 var(--space-2);
}

/* ---------- Feature ledger (kept features) ---------- */

.feature-list {
  list-style: none;
  margin: var(--space-3) 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: var(--space-2) var(--space-3);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.feature-list .feature-mark {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--sage-bright);
}

/* ---------- Testing results ---------- */

.test-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin: var(--space-4) 0;
}

.test-card {
  background: var(--sage-soft);
  border: 1px solid var(--sage-line);
  border-radius: 10px;
  padding: var(--space-3);
  text-align: center;
}

.test-card .test-mark {
  width: 26px;
  height: 26px;
  color: var(--sage-bright);
  margin: 0 auto 0.6rem;
}

.test-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--paper);
}

/* ---------- Screenshot placeholders ---------- */

.shot-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin: var(--space-4) 0;
}

.shot-row.single { grid-template-columns: 1fr; }
.shot-row.cols-3 { grid-template-columns: repeat(3, 1fr); }

.shot-frame {
  aspect-ratio: 16 / 11;
  border: 1.5px dashed var(--line-strong);
  border-radius: 10px;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  color: var(--bronze-bright);
  padding: var(--space-2);
  text-align: center;
}

.shot-frame.tall { aspect-ratio: 9 / 16; max-width: 240px; margin: 0 auto; }

.shot-frame .shot-icon {
  width: 26px;
  height: 26px;
  opacity: 0.7;
}

.shot-frame span.shot-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.shot-frame span.shot-sub {
  font-size: 0.74rem;
  color: var(--ink-quiet);
  max-width: 22ch;
}

/* Real images replacing placeholders — solid border, image fills frame */
.shot-frame.has-image {
  border-style: solid;
  border-color: var(--line-strong);
  padding: 0;
  overflow: hidden;
  display: block;
}

.shot-frame.has-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  border-radius: 8px;
  display: block;
  cursor: zoom-in;
  transition: filter 0.2s ease, transform 0.3s ease;
}

.shot-frame.has-image img:hover,
.shot-frame.has-image img:focus-visible {
  filter: brightness(1.04);
  transform: scale(1.01);
}

/* ---------- Unboxed shot row (no border/background frame) ---------- */

.shot-row-plain {
  align-items: start;
}

.shot-frame-plain {
  display: block;
  max-width: 220px;
  margin: 0 auto;
}

.shot-frame-plain img {
  width: 100%;
  height: auto;
  display: block;
  cursor: zoom-in;
  transition: filter 0.2s ease, transform 0.3s ease;
}

.shot-frame-plain img:hover,
.shot-frame-plain img:focus-visible {
  filter: brightness(1.04);
  transform: scale(1.01);
}

/* ---------- Reflection card ---------- */

.reflection-card {
  background: var(--surface);
  border-radius: 14px;
  padding: var(--space-5) var(--space-4);
  border: 1px solid var(--line);
}

.reflection-card .note { background: var(--dusk-2); border-left-color: var(--bronze); }

/* ---------- Footer / project nav ---------- */

.project-nav {
  border-top: 1px solid var(--line);
  padding: var(--space-6) var(--space-5);
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  max-width: var(--measure-wide);
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.project-nav a {
  flex: 1;
  padding: var(--space-3);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--surface);
  transition: border-color 0.2s ease, transform 0.2s ease;
  min-height: 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.project-nav a:hover {
  border-color: var(--bronze-line);
  transform: translateY(-2px);
}

.project-nav .direction {
  display: block;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--bronze-bright);
  margin-bottom: 0.3rem;
}

.project-nav .title {
  font-family: var(--display);
  font-style: normal;
  color: var(--paper);
  font-size: 0.95rem;
}

.project-nav a.next { text-align: right; }

.site-footer {
  text-align: center;
  padding: var(--space-4) var(--space-3) var(--space-5);
  font-size: 0.85rem;
  color: var(--ink-quiet);
  position: relative;
  z-index: 2;
}

/* ---------- Image lightbox ---------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  background: rgba(10, 12, 16, 0.88);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox-img {
  max-width: min(92vw, 1400px);
  max-height: 88vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 24px 64px -16px rgba(0, 0, 0, 0.6);
  background: var(--surface);
  transform: scale(0.96);
  transition: transform 0.25s ease;
}

.lightbox.is-open .lightbox-img {
  transform: scale(1);
}

.lightbox-close {
  position: fixed;
  top: var(--space-3);
  right: var(--space-3);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--paper);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.lightbox-close:hover,
.lightbox-close:focus-visible {
  border-color: var(--bronze-bright);
  background: var(--dusk-2);
}

@media (max-width: 480px) {
  .lightbox { padding: var(--space-2); }
  .lightbox-close { top: var(--space-2); right: var(--space-2); width: 40px; height: 40px; }
}

/* ============================================================
   RESPONSIVE — 760px and below
   ============================================================ */

@media (max-width: 760px) {

  .reticle-spine { display: none; }

  .site-header { padding: 0 var(--space-3); height: 56px; }
  .site-header .logo img { height: 24px; }

  .site-header nav { display: none; }

  .nav-toggle { display: flex; order: -1; }

  .site-header .logo { order: 1; }

  /* Pinned mobile dropdown — stays fixed directly under the sticky
     header as the page scrolls, instead of scrolling away with content. */
  .nav-links-mobile.is-open {
    position: fixed;
    top: var(--mobile-nav-offset, 56px);
    left: 0;
    right: 0;
    max-height: calc(100vh - var(--mobile-nav-offset, 56px));
    overflow-y: auto;
    z-index: 49;
  }

  .hero { min-height: 82vh; padding: var(--space-5) var(--space-3) var(--space-4); }
  .hero-target { width: 56px; height: 56px; }
  .hero h1 { font-size: clamp(1.9rem, 8vw, 2.6rem); max-width: none; }
  .hero p.lede { font-size: 1rem; max-width: none; margin-bottom: var(--space-4); }

  .meta-strip {
    grid-template-columns: repeat(2, 1fr);
    padding: var(--space-3) var(--space-3) var(--space-4);
    gap: var(--space-2) var(--space-3);
  }

  .section { padding: var(--space-4) var(--space-3); }
  .section-head { margin-bottom: var(--space-3); gap: var(--space-1); }

  .stat-grid { grid-template-columns: 1fr; }

  .persona-card { grid-template-columns: 1fr; }
  .persona-cols { grid-template-columns: 1fr; gap: var(--space-2); }

  .draw-block { grid-template-columns: 1fr; gap: var(--space-2); }

  .feature-list { grid-template-columns: 1fr; }

  .test-grid { grid-template-columns: 1fr; }

  .shot-row { grid-template-columns: 1fr; }
  .shot-row.cols-3 { grid-template-columns: 1fr; }
  .shot-frame:not(.has-image) { aspect-ratio: 4 / 3; }
  .shot-frame.tall { max-width: 200px; }

  .reflection-card { padding: var(--space-3) var(--space-3); border-radius: 10px; }

  .project-nav {
    flex-direction: column;
    padding: var(--space-4) var(--space-3);
    gap: var(--space-2);
  }

  .project-nav a { flex: none; width: 100%; }
  .project-nav a.next { text-align: left; }
}

@media (max-width: 480px) {

  :root {
    --space-4: 2rem;
    --space-5: 3rem;
    --space-6: 4rem;
  }

  body { font-size: 16px; }

  .site-header {
    flex-wrap: wrap;
    row-gap: 0.5rem;
    height: auto;
    padding: var(--space-2) var(--space-3);
  }

  .site-header nav { gap: var(--space-2); }
  .site-header nav a { font-size: 0.85rem; min-height: 36px; }

  .hero { min-height: 78vh; }
  .hero h1 { font-size: clamp(1.7rem, 9vw, 2.2rem); line-height: 1.25; }

  .meta-strip { grid-template-columns: 1fr 1fr; gap: var(--space-2); }
  .meta-item .value { font-size: 0.88rem; word-break: break-word; }

  .section h2 { font-size: clamp(1.35rem, 6vw, 1.8rem); }
  .hook-line { font-size: clamp(1.05rem, 4.5vw, 1.25rem) !important; }

  .subsection h3 { font-size: 1.05rem; }

  .persona-facts { font-size: 0.72rem; }

  .note, .placeholder { padding: var(--space-2); }
}