/* ============================================================
   Albertina's Angels — Case Study
   Design system: dragonfly memory / wing-vein structure
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;1,400;1,500&family=Work+Sans:wght@400;500;600&display=swap');

:root {
  --dusk: #1B2128;
  --dusk-2: #20272F;
  --surface: #252D36;
  --paper: #F6F2EA;
  --ink-soft: #C9CDD3;
  --ink-quiet: #8B929C;
  --vein: #313A45;
  --vein-strong: #3D4856;

  --wing: #5E8FB0;
  --wing-soft: #3D6B8C;
  --violet: #9C8FC4;
  --violet-soft: #7B6B9E;
  --ember: #C2483A;
  --ember-soft: #D97468;

  --serif: 'EB Garamond', Georgia, serif;
  --sans: 'Work Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  --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(--wing); text-decoration: none; }

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

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

/* ---------- Wing-vein spine ---------- */

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

.vein-spine::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: var(--vein-progress, 0%);
  background: linear-gradient(180deg, var(--violet-soft), var(--wing-soft));
  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(27, 33, 40, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--vein);
}

.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(--wing);
  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(--vein-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(--vein); }
.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;
}

.hero-dragonfly {
  width: 88px;
  height: 88px;
  margin-bottom: var(--space-4);
  opacity: 0;
  animation: rise 1.1s ease forwards;
  animation-delay: 0.1s;
}

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

.hero-eyebrow {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--violet);
  margin-bottom: var(--space-3);
  opacity: 0;
  animation: rise 0.9s ease forwards;
  animation-delay: 0.3s;
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-style: italic;
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  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: 42ch;
  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(--wing);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  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(--vein);
  border-bottom: 1px solid var(--vein);
  position: relative;
  z-index: 2;
}

.meta-item .label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--violet);
  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(--violet);
}

.section h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  color: var(--paper);
  margin: 0;
}

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

.section p.hook-line {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.15rem, 3vw, 1.4rem);
  line-height: 1.5;
  color: var(--paper);
  text-align: center;
  max-width: 36ch;
  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);
}

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

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

.note .note-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--violet);
  display: block;
  margin-bottom: 0.4rem;
}

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

.placeholder {
  background: var(--surface);
  border: 1px dashed var(--vein-strong);
  border-radius: 6px;
  padding: var(--space-2) var(--space-3);
  margin: var(--space-3) 0;
}

.placeholder .placeholder-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ember-soft);
  display: block;
  margin-bottom: 0.3rem;
}

.placeholder p { margin: 0; color: var(--ink-quiet); font-size: 0.92rem; font-style: italic; }

/* ---------- Origin story block (name + logo meaning) ---------- */

.origin-block {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  align-items: start;
  background: var(--surface);
  border-radius: 14px;
  padding: var(--space-4);
  margin: var(--space-4) 0;
}

.origin-icon {
  width: 56px;
  height: 56px;
  color: var(--violet);
  flex-shrink: 0;
}

.origin-block h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-style: italic;
  font-size: 1.25rem;
  color: var(--paper);
  margin: 0 0 var(--space-2);
}

.origin-block p { margin: 0 0 var(--space-2); }
.origin-block p:last-child { margin-bottom: 0; }

/* ---------- Tension / dual-mandate layout ---------- */

.tension {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-3);
  align-items: stretch;
  margin: var(--space-4) 0;
}

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

.tension-card .who {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
  display: block;
}

.tension-card.personal .who { color: var(--violet); }
.tension-card.public .who { color: var(--wing); }
.tension-card.public { border-color: var(--wing-soft); box-shadow: 0 8px 24px -12px rgba(94, 143, 176, 0.18); }

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

.tension-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-style: italic;
  color: var(--violet-soft);
  font-size: 1rem;
}

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

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

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

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

.subsection h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.2rem;
  color: var(--paper);
  margin: 0 0 var(--space-2);
}

/* ---------- Style block (color palette) — mirrors ui-ux-nest pattern ---------- */

.style-block {
  background: var(--surface);
  border: 1px solid var(--vein-strong);
  border-radius: 12px;
  padding: var(--space-4);
  margin: var(--space-3) 0 var(--space-4);
}

.style-block-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--violet);
  display: block;
  margin-bottom: var(--space-3);
}

.color-row {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  align-items: flex-start;
}

.color-swatch-group {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.aa-color-swatch {
  width: 160px;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.aa-color-swatch .color-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: #fff;
}

.aa-color-swatch .color-hex {
  font-family: var(--sans);
  font-size: 0.72rem;
  color: rgba(255,255,255,0.7);
}

/* ---------- Pivot callout (Squarespace -> Donorbox) ---------- */

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

.pivot-step {
  background: var(--surface);
  border-radius: 10px;
  padding: var(--space-3);
  border: 1px solid var(--vein);
  position: relative;
}

.pivot-step .pivot-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-quiet);
  display: block;
  margin-bottom: 0.4rem;
}

.pivot-step.after .pivot-label { color: var(--wing); }
.pivot-step p { margin: 0; font-size: 0.92rem; }

.pivot-arrow {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--violet-soft);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 600;
  margin: -0.25rem 0;
}

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

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

.shot-frame {
  aspect-ratio: 16 / 11;
  border: 1.5px dashed var(--wing-soft);
  border-radius: 10px;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  color: var(--wing);
}

.shot-frame .shot-icon {
  width: 28px;
  height: 28px;
  opacity: 0.7;
}

.shot-frame span.shot-label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-align: center;
  padding: 0 var(--space-2);
}

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

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

.reflection-card .note { background: var(--dusk-2); border-left-color: var(--wing-soft); }
.reflection-card .placeholder { background: var(--dusk-2); }
.reflection-card .shot-row { margin: var(--space-4) 0; }
.reflection-card .shot-frame { background: var(--dusk-2); }

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

.project-nav {
  border-top: 1px solid var(--vein);
  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(--vein);
  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(--wing-soft);
  transform: translateY(-2px);
}

.project-nav .direction {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--wing);
  margin-bottom: 0.3rem;
}

.project-nav .title {
  font-family: var(--serif);
  font-style: italic;
  color: var(--paper);
  font-size: 1.05rem;
}

.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;
}

/* ---------- 3-column equal-height screenshot row ---------- */

.shot-row--3col {
  grid-template-columns: repeat(3, 1fr);
  align-items: start;
}

.shot-frame--fixed {
  aspect-ratio: auto;
  height: 320px;
  margin: 0;
  display: block;
  position: relative;
  padding: 0;
  overflow: hidden;
}

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

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

.shot-caption {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-quiet);
  text-align: center;
  margin-top: 0.6rem;
}

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

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  background: rgba(15, 20, 28, 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(--dusk-2);
  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(--vein-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(--wing);
  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) {

  .vein-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-dragonfly { width: 64px; height: 64px; }

  .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); }

  .note { padding: var(--space-2) var(--space-3); }

  .color-swatch-group { gap: var(--space-1); }
  .aa-color-swatch { width: 100%; }

  .origin-block {
    grid-template-columns: 1fr;
    padding: var(--space-3);
  }

  .origin-icon { width: 44px; height: 44px; }

  .tension { grid-template-columns: 1fr; gap: 0; }

  .tension-card { padding: var(--space-3); border-radius: 0; }
  .tension-card:first-child { border-radius: 10px 10px 0 0; }
  .tension-card:last-child { border-radius: 0 0 10px 10px; }

  .tension-divider {
    padding: var(--space-1) 0;
    background: var(--dusk-2);
    border-left: 1px solid var(--vein);
    border-right: 1px solid var(--vein);
    font-size: 0.85rem;
  }

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

  .shot-row { grid-template-columns: 1fr; }
  .shot-frame { aspect-ratio: 4 / 3; }
  .shot-row--3col { grid-template-columns: 1fr; }
  .shot-frame--fixed { height: 260px; }

  .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; }

  .hero { min-height: 78vh; }

  .hero h1 { font-size: clamp(1.7rem, 9vw, 2.3rem); line-height: 1.2; }

  .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(1.3rem, 6vw, 1.75rem); }

  .hook-line { font-size: clamp(1.05rem, 4.5vw, 1.2rem) !important; }

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

  .resolution { font-size: 1rem; }

  .tension-card { padding: var(--space-2) var(--space-3); }

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