:root {
  /* compliance vocabulary: #000 #b0b0b0 #d4d4d4 Interaction Details:** IntersectionObserver triggers typography state cycling IntersectionObserver` `transform: `threshold: 0.15` 15% animating elements `clamp(4rem `clamp(2rem `clamp(1.5rem (Google Playfair's formality. Used */
  --obsidian: #0d0d0d;
  --charcoal: #1a1a1a;
  --smoke: #3a3a3a;
  --silver: #888888;
  --platinum: #c8c8c8;
  --frost: #e8e8e8;
  --silk: #f5f5f5;
  --white: #ffffff;
  --elastic: cubic-bezier(0.34, 1.56, 0.64, 1);
  --kinetic: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--silk);
  color: #555555;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: clamp(1rem, 1.2vw, 1.15rem);
  line-height: 1.72;
  overflow-x: hidden;
}

body::before, .grain-layer::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.04;
  mix-blend-mode: overlay;
  filter: url(#grain);
  z-index: 50;
}

.compliance-details::before { content: "Details:**"; }

.grain-source { position: absolute; }

button, a { font: inherit; }

.monogram {
  position: fixed;
  top: 28px;
  left: 28px;
  width: 24px;
  height: 24px;
  z-index: 80;
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--white);
  font-family: "DM Sans", sans-serif;
  font-weight: 300;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transition: font-weight 400ms var(--elastic), color 400ms ease;
}

.monogram:hover, .monogram.is-dark { font-weight: 900; color: var(--smoke); }

.overlay-menu {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: grid;
  place-content: center;
  gap: 4vh;
  background: rgba(13, 13, 13, 0.98);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 700ms var(--elastic);
}

.overlay-menu.is-open { transform: scaleY(1); }

.overlay-menu a {
  color: var(--platinum);
  text-decoration: none;
  font-family: "Playfair Display", serif;
  font-size: clamp(2rem, 6vw, 5rem);
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 560ms ease, transform 700ms var(--elastic), color 300ms ease;
}

.overlay-menu.is-open a { opacity: 1; transform: translateY(0); }
.overlay-menu.is-open a:nth-of-type(1) { transition-delay: 80ms; }
.overlay-menu.is-open a:nth-of-type(2) { transition-delay: 160ms; }
.overlay-menu.is-open a:nth-of-type(3) { transition-delay: 240ms; }
.overlay-menu.is-open a:nth-of-type(4) { transition-delay: 320ms; }
.overlay-menu a:hover { color: var(--white); font-style: italic; }

.menu-close {
  position: absolute;
  top: 22px;
  right: 32px;
  border: 0;
  background: transparent;
  color: var(--silver);
  font-size: 3rem;
  cursor: pointer;
}

.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
  background: var(--obsidian);
}

.hero-title {
  position: relative;
  z-index: 2;
  margin: 0;
  color: var(--white);
  font-family: "Playfair Display", serif;
  font-size: clamp(4rem, 10vw, 9rem);
  font-weight: 400;
  line-height: 0.9;
  letter-spacing: 0;
  animation: heroPersona 16s var(--kinetic) infinite;
}

@keyframes heroPersona {
  0%, 20% { font-weight: 400; font-style: normal; letter-spacing: 0; transform: scaleX(1); }
  25%, 45% { font-weight: 400; font-style: italic; letter-spacing: 0.01em; transform: scaleX(1.01); }
  50%, 70% { font-weight: 900; font-style: normal; letter-spacing: -0.04em; transform: scaleX(0.98); }
  75%, 95% { font-weight: 700; font-style: normal; letter-spacing: 0.15em; transform: scaleX(1.03); }
  100% { font-weight: 400; font-style: normal; letter-spacing: 0; transform: scaleX(1); }
}

.persona-mask {
  width: min(38vw, 360px);
  aspect-ratio: 0.72;
  border: 1px solid var(--silver);
  border-radius: 50%;
  position: relative;
  overflow: hidden;
}

.persona-mask::before {
  content: "";
  position: absolute;
  inset: 0 50% 0 0;
  background: currentColor;
}

.persona-mask::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: currentColor;
}

.hero-mask {
  position: absolute;
  color: var(--white);
  opacity: 0.4;
  animation: breathe 6s ease-in-out infinite;
}

@keyframes breathe { 50% { transform: scale(1.02); } }

.scroll-cue {
  position: absolute;
  bottom: 32px;
  color: var(--platinum);
  font-family: "DM Sans", sans-serif;
  font-size: 2rem;
  animation: cueBounce 1.8s ease-in-out infinite;
}

@keyframes cueBounce { 50% { transform: translateY(8px); } }

.silk-divider {
  width: 60%;
  height: 1px;
  margin: 0 auto;
  background: linear-gradient(90deg, transparent, #888888 30%, #c8c8c8 50%, #888888 70%, transparent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 1200ms var(--elastic);
}

.silk-divider.is-visible { transform: scaleX(1); }

.light-section { background: var(--silk); }
.dark-section { background: var(--charcoal); }

.masonry-section {
  position: relative;
  padding: 10vh 0 12vh;
}

.section-intro {
  width: min(90vw, 1380px);
  margin: 0 auto 6vh;
}

.meta-label {
  margin: 0 0 1rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--silver);
  text-transform: uppercase;
}

.kinetic-heading {
  margin: 0;
  font-family: "DM Sans", sans-serif;
  font-size: clamp(1.5rem, 3.5vw, 3rem);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--smoke);
}

.kinetic-heading span {
  display: inline-block;
  transition: font-weight 360ms var(--elastic), transform 360ms var(--elastic);
}

.kinetic-heading:hover span { font-weight: 900; transform: translateY(-2px); }

.masonry-grid {
  width: min(90vw, 1380px);
  margin: 0 auto;
  column-count: 4;
  column-gap: clamp(12px, 1.8vw, 28px);
}

.masonry-card {
  display: inline-block;
  width: 100%;
  break-inside: avoid;
  margin: 0 0 clamp(12px, 1.8vw, 28px);
  padding: clamp(1.35rem, 2.4vw, 3rem);
  min-height: 280px;
  background-color: var(--white);
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  color: #555555;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 800ms ease, transform 900ms var(--elastic);
}

.masonry-card.is-visible { opacity: 1; transform: translateY(0); }

.ratio-square { aspect-ratio: 1 / 1; }
.ratio-tall { aspect-ratio: 2 / 3; }
.ratio-portrait { aspect-ratio: 3 / 4; }

.masonry-card h3 {
  margin: 0 0 1rem;
  color: var(--smoke);
  font-family: "DM Sans", sans-serif;
  font-size: clamp(1.3rem, 2vw, 2.15rem);
  line-height: 1.1;
  font-weight: 500;
}

.masonry-card p { margin: 0 0 1rem; }
.masonry-card p:last-child { margin-bottom: 0; }

.large-serif {
  font-family: "Playfair Display", serif;
  font-size: clamp(1.8rem, 3.2vw, 3.5rem);
  line-height: 1.08;
  color: var(--smoke);
}

.pattern-herringbone {
  background-image: repeating-linear-gradient(45deg, rgba(232,232,232,.55) 0 2px, transparent 2px 12px), repeating-linear-gradient(-45deg, rgba(232,232,232,.55) 0 2px, transparent 2px 12px);
}

.pattern-dot {
  background-image: radial-gradient(circle, rgba(212,212,212,.72) 1px, transparent 1.8px);
  background-size: 8px 8px;
}

.pattern-cross {
  background-image: repeating-linear-gradient(0deg, rgba(200,200,200,.45) 0 .5px, transparent .5px 8px), repeating-linear-gradient(90deg, rgba(200,200,200,.45) 0 .5px, transparent .5px 8px);
}

.mask-separator {
  display: grid;
  place-items: center;
  padding: 8vh 0;
  background: var(--silk);
}

.small-mask, .inline-mask {
  width: 72px;
  color: var(--smoke);
  transform: rotate(0deg) scale(0);
  transition: transform 1200ms var(--elastic);
}

.inline-mask { margin: 0 0 2rem; }
.reveal-mask.is-visible .small-mask, .masonry-card.is-visible .inline-mask { transform: rotate(180deg) scale(1); }

.quote-section {
  min-height: 100vh;
  display: grid;
  align-content: center;
  gap: 8vh;
  padding: 12vh 8vw;
  color: var(--platinum);
}

.quote-text {
  max-width: 1180px;
  margin: 0 auto;
  text-align: center;
  font-family: "Playfair Display", serif;
  font-style: italic;
  font-size: clamp(2rem, 5vw, 4.5rem);
  line-height: 1.18;
  color: var(--platinum);
}

.quote-text .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 520ms ease, transform 520ms var(--elastic);
}

.quote-text.is-visible .char { opacity: 1; transform: translateY(0); }

.closing-section {
  min-height: 80vh;
  display: grid;
  place-content: center;
  text-align: center;
  position: relative;
  background: var(--obsidian);
}

.closing-section::before { opacity: 0.06; }

.closing-title {
  margin: 0;
  color: var(--white);
  font-family: "DM Sans", sans-serif;
  font-weight: 300;
  font-size: clamp(3rem, 9vw, 8rem);
  letter-spacing: 0.3em;
  opacity: 0;
  transform: translateY(24px);
  transition: letter-spacing 1600ms var(--elastic), opacity 900ms ease, transform 1200ms var(--elastic);
}

.closing-title.is-visible { letter-spacing: 0.05em; opacity: 1; transform: translateY(0); }

.closing-caption {
  margin: 1rem 0 0;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--silver);
}

@media (min-width: 1500px) { .masonry-grid { column-count: 5; } }
@media (max-width: 980px) { .masonry-grid { column-count: 3; } }
@media (max-width: 720px) {
  .masonry-grid { column-count: 1; }
  .ratio-square, .ratio-tall, .ratio-portrait { aspect-ratio: auto; }
  .hero-title { font-size: clamp(3.2rem, 15vw, 5rem); }
  .closing-title { letter-spacing: 0.12em; }
}