/* Components: nav, buttons, cursor, grain, preloader, marquee, footer */

/* ----------------------------------------------------------
   GRAIN OVERLAY — SVG noise, low opacity, subtle shimmer
---------------------------------------------------------- */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9000;
  opacity: 0.045;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix type='matrix' values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.9 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  background-size: 200px 200px;
  animation: grainShift 0.9s steps(6) infinite;
}
@keyframes grainShift {
  0%   { transform: translate(0, 0); }
  20%  { transform: translate(-6%, 3%); }
  40%  { transform: translate(-3%, 6%); }
  60%  { transform: translate(4%, 1%); }
  80%  { transform: translate(-5%, 2%); }
  100% { transform: translate(0, 0); }
}
@media (prefers-reduced-motion: reduce) {
  .grain { animation: none; }
}

/* ----------------------------------------------------------
   CUSTOM CURSOR — tiny dot + ring, difference-blend
---------------------------------------------------------- */
.cursor {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 10000;
  mix-blend-mode: difference;
}
.cursor__dot {
  position: fixed;
  top: 0; left: 0;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--bone);
  transform: translate(-50%, -50%);
  will-change: transform;
}
.cursor__ring {
  position: fixed;
  top: 0; left: 0;
  width: 32px; height: 32px;
  border: 1px solid var(--bone);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.3s var(--ease-out), height 0.3s var(--ease-out), background 0.3s var(--ease-out), opacity 0.3s var(--ease-out);
  will-change: transform;
}
.cursor__label {
  position: fixed;
  top: 0; left: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--bone);
  padding: 6px 12px;
  border-radius: 999px;
  transform: translate(-50%, -50%) scale(0.8);
  opacity: 0;
  transition: opacity 0.25s var(--ease-out), transform 0.3s var(--ease-out);
  white-space: nowrap;
  will-change: transform;
}
body.cursor-hover .cursor__ring {
  width: 52px; height: 52px;
  background: rgba(232,230,224,0.05);
}
body.cursor-play .cursor__ring { opacity: 0; }
body.cursor-play .cursor__dot { opacity: 0; }
body.cursor-play .cursor__label { opacity: 1; transform: translate(-50%, -50%) scale(1); }
body.cursor-drag .cursor__ring { opacity: 0; }
body.cursor-drag .cursor__dot { opacity: 0; }
body.cursor-drag .cursor__label { opacity: 1; transform: translate(-50%, -50%) scale(1); }

@media (hover: none), (pointer: coarse) {
  .cursor { display: none; }
}

/* ----------------------------------------------------------
   NAV — small, tight, editorial
---------------------------------------------------------- */
/* NAV — flat, minimal, matches hairline aesthetic */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  padding: 18px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-5);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: transform 0.5s var(--ease-out), background 0.5s var(--ease-out), border-color 0.5s var(--ease-out), padding 0.4s var(--ease-out), backdrop-filter 0.5s var(--ease-out);
}
.nav.is-scrolled {
  padding: 12px var(--gutter);
  background: rgba(7, 7, 10, 0.72);
  border-bottom-color: var(--line);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
}
.nav.is-hidden { transform: translateY(-110%); }

/* Monogram — clean bone letters, no ring */
.nav__brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--bone);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 2px;
  position: relative;
  transition: opacity 0.3s var(--ease-out);
}
.nav__brand::after {
  content: '';
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--bone);
  opacity: 0.5;
  transition: opacity 0.3s var(--ease-out), transform 0.4s var(--ease-out);
}
.nav__brand:hover { opacity: 0.85; }
.nav__brand:hover::after { opacity: 1; transform: scale(1.3); }

.nav__links {
  display: flex;
  gap: var(--s-6);
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}
.nav__links a {
  position: relative;
  padding: 6px 0;
  color: var(--bone-dim);
  transition: color 0.25s var(--ease-out);
}
.nav__links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--bone);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease-out);
}
.nav__links a:hover { color: var(--bone); }
.nav__links a:hover::after, .nav__links a.is-active::after { transform: scaleX(1); }
.nav__links a.is-active { color: var(--bone); }

/* CTA — clean text link with arrow, no box */
.nav__cta {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 6px 0;
  color: var(--bone);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  position: relative;
  transition: color 0.3s var(--ease-out);
  white-space: nowrap;
}
.nav__cta::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1px;
  width: 100%;
  background: var(--bone);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.5s var(--ease-out);
}
.nav__cta:hover::after { transform: scaleX(1); transform-origin: left; }

.nav__burger {
  display: none;
  width: 32px; height: 32px;
  position: relative;
  background: transparent;
  border: none;
  cursor: pointer;
}
.nav__burger span {
  position: absolute;
  left: 4px; right: 4px;
  height: 1px;
  background: var(--bone);
  transition: transform 0.4s var(--ease-out), top 0.4s var(--ease-out), opacity 0.3s;
}
.nav__burger span:nth-child(1) { top: 12px; }
.nav__burger span:nth-child(2) { top: 19px; }
.nav.is-open .nav__burger span:nth-child(1) { top: 15px; transform: rotate(45deg); }
.nav.is-open .nav__burger span:nth-child(2) { top: 15px; transform: rotate(-45deg); }

.nav-overlay {
  position: fixed;
  inset: 0;
  background: var(--ink);
  z-index: 490;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--gutter);
  transform: translateY(-100%);
  transition: transform 0.7s var(--ease-cinema);
  pointer-events: none;
}
.nav-overlay.is-open {
  transform: translateY(0);
  pointer-events: auto;
}
.nav-overlay a {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 10vw, 5.5rem);
  line-height: 1;
  font-weight: 500;
  letter-spacing: -0.05em;
  text-transform: uppercase;
  padding-block: 0.1em;
  display: block;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.nav-overlay.is-open a {
  opacity: 1;
  transform: translateY(0);
}
.nav-overlay.is-open a:nth-child(1) { transition-delay: 0.15s; }
.nav-overlay.is-open a:nth-child(2) { transition-delay: 0.25s; }
.nav-overlay.is-open a:nth-child(3) { transition-delay: 0.35s; }
.nav-overlay.is-open a:nth-child(4) { transition-delay: 0.45s; }

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__cta { display: none; }
  .nav__burger { display: block; }
}

/* ----------------------------------------------------------
   BUTTONS
---------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  padding: 16px 26px;
  border: 1px solid var(--bone);
  color: var(--bone);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
  background: transparent;
  position: relative;
  overflow: hidden;
  transition: color 0.5s var(--ease-out);
  will-change: transform;
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--bone);
  transform: translateY(101%);
  transition: transform 0.5s var(--ease-cinema);
  z-index: -1;
}
.btn:hover { color: var(--ink); }
.btn:hover::before { transform: translateY(0); }
.btn__arrow { transition: transform 0.4s var(--ease-out); }
.btn:hover .btn__arrow { transform: translateX(4px); }

.btn--signal { border-color: var(--signal); color: var(--signal); }
.btn--signal::before { background: var(--signal); }

/* Inline link — mono label with two-pass underline */
.link-inline {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding-bottom: 4px;
  color: var(--bone);
}
.link-inline::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--bone);
  transform-origin: right;
  transition: transform 0.5s var(--ease-cinema);
}
.link-inline:hover::after { transform: scaleX(0); transform-origin: left; }
.link-inline::before {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--bone);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease-cinema) 0.15s;
}
.link-inline:hover::before { transform: scaleX(1); }

/* ----------------------------------------------------------
   PRELOADER — editorial mark, serif italic tagline
---------------------------------------------------------- */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 1.1s var(--ease-cinema);
}
.preloader.is-done { transform: translateY(-100%); }
.preloader::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--ink);
  transform: translateY(0);
  transition: transform 1.1s var(--ease-cinema) 0.1s;
}
.preloader.is-done::after { transform: translateY(-100%); }

.preloader__inner {
  position: relative;
  z-index: 2;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-5);
}
.preloader__brand {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  text-transform: uppercase;
  overflow: hidden;
  line-height: 1;
}
.preloader__brand em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: 1.08em;
  text-transform: none;
  letter-spacing: -0.015em;
}
.preloader__brand span {
  display: inline-block;
  transform: translateY(110%);
  animation: preloaderRise 1s var(--ease-cinema) 0.2s forwards;
}
@keyframes preloaderRise {
  to { transform: translateY(0); }
}
.preloader__bar {
  width: 240px;
  height: 1px;
  background: var(--line);
  position: relative;
  overflow: hidden;
}
.preloader__bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--bone);
  transform-origin: left;
  transform: scaleX(0);
  animation: preloaderFill 1.2s var(--ease-cinema) 0.3s forwards;
}
@keyframes preloaderFill { to { transform: scaleX(1); } }
.preloader__label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0;
  animation: fadeIn 0.6s 0.3s forwards;
}
@keyframes fadeIn { to { opacity: 1; } }

/* ----------------------------------------------------------
   FOOTER
---------------------------------------------------------- */
.footer {
  padding: var(--s-10) var(--gutter) var(--s-6);
  border-top: 1px solid var(--line);
  position: relative;
  z-index: 10;
  background: var(--ink);
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--s-8);
  align-items: start;
  max-width: var(--max-w);
  margin-inline: auto;
}
.footer__brand-block { max-width: 34ch; }
.footer__brand-block h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  margin-bottom: var(--s-4);
}
.footer__brand-block h3 em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  text-transform: none;
  font-size: 1.1em;
  letter-spacing: -0.02em;
  background: var(--grad-mono);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.footer__col h4 {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: var(--s-4);
  font-weight: 500;
}
.footer__col ul { display: flex; flex-direction: column; gap: 10px; }
.footer__col a {
  color: var(--bone-dim);
  font-size: var(--fs-sm);
  transition: color 0.25s var(--ease-out);
}
.footer__col a:hover { color: var(--bone); }
.footer__bottom {
  display: flex;
  justify-content: space-between;
  gap: var(--s-4);
  padding-top: var(--s-6);
  margin-top: var(--s-8);
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  max-width: var(--max-w);
  margin-inline: auto;
  flex-wrap: wrap;
}
@media (max-width: 900px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--s-6); }
  .footer__brand-block { grid-column: 1 / -1; }
}

/* ----------------------------------------------------------
   PAGE TRANSITION CURTAIN
---------------------------------------------------------- */
.page-curtain {
  position: fixed;
  inset: 0;
  z-index: 9800;
  background: var(--ink);
  transform: translateY(100%);
  pointer-events: none;
}
.page-curtain.is-in { transform: translateY(0); transition: transform 0.7s var(--ease-cinema); }
.page-curtain.is-out { transform: translateY(-100%); transition: transform 0.7s var(--ease-cinema); }

/* ----------------------------------------------------------
   SCROLL PROGRESS RAIL — right edge, monochrome
---------------------------------------------------------- */
.scroll-rail {
  position: fixed;
  top: 0; right: 0;
  width: 2px;
  height: 100vh;
  z-index: 480;
  background: transparent;
  pointer-events: none;
}
.scroll-rail::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--line);
}
.scroll-rail__fill {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: var(--scroll-progress, 0%);
  background: var(--grad-mono);
  transition: height 0.08s linear;
}
@media (max-width: 768px) { .scroll-rail { width: 1px; } }
@media (prefers-reduced-motion: reduce) { .scroll-rail__fill { transition: none; } }

/* ----------------------------------------------------------
   SECTION HEAD — case-file index + serif italic name
---------------------------------------------------------- */
.section-head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--s-6);
  align-items: end;
  padding-inline: var(--gutter);
  margin-bottom: var(--s-8);
  max-width: var(--max-w);
  margin-inline: auto;
  padding-block-end: var(--s-4);
  border-bottom: 1px solid var(--line);
}
.section-head__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.75rem, 6vw, 5.75rem);
  line-height: 0.88;
  letter-spacing: -0.045em;
  text-transform: uppercase;
  color: var(--bone);
}
.section-head__title em,
.section-head__title .ital {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  text-transform: none;
  font-size: 1.12em;
  letter-spacing: -0.02em;
  background: var(--grad-mono);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.section-head__meta {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  text-align: right;
}
.section-head__meta strong { color: var(--bone); font-weight: 500; }
.section-head__meta .ital {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  text-transform: none;
  font-size: 1.05em;
  letter-spacing: -0.005em;
  color: var(--bone);
}

@media (max-width: 768px) {
  .section-head { grid-template-columns: 1fr; }
  .section-head__meta { text-align: left; flex-direction: row; gap: var(--s-4); }
}

/* ----------------------------------------------------------
   GLASS PRIMITIVES — frosted panels, chips, gradient borders
---------------------------------------------------------- */
.glass {
  background: var(--glass-fill);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: var(--r-lg);
}

.glass-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: 8px 14px;
  border-radius: var(--r-pill);
  background: var(--glass-fill);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bone-dim);
  white-space: nowrap;
}
.glass-chip strong { color: var(--bone); font-weight: 500; }
.glass-chip em {
  font-family: var(--font-serif);
  font-style: italic;
  text-transform: none;
  letter-spacing: -0.01em;
  font-size: 1.2em;
  background: var(--grad-mono);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.glass-panel {
  position: relative;
  background: var(--glass-fill);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur-lg);
  -webkit-backdrop-filter: var(--glass-blur-lg);
  border-radius: var(--r-xl);
  overflow: hidden;
}

/* Gradient text utility */
.grad-text {
  background: var(--grad-mono);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Status dot — pulsing aurora */
.dot-pulse {
  position: relative;
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--c-mint);
  box-shadow: 0 0 0 0 rgba(102, 240, 194, 0.5);
  animation: dotPulse 2.2s ease-out infinite;
}
@keyframes dotPulse {
  0%   { box-shadow: 0 0 0 0 rgba(102, 240, 194, 0.55); }
  70%  { box-shadow: 0 0 0 10px rgba(102, 240, 194, 0); }
  100% { box-shadow: 0 0 0 0 rgba(102, 240, 194, 0); }
}
@media (prefers-reduced-motion: reduce) {
  .dot-pulse { animation: none; }
}