/* ─────────────────────────────────────────────────────
   BASE — Reset, Variables, Cursor, Nav, Grain, Utils
───────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black:      #000000;
  --black-2:    #050505;
  --black-card: #0D0D0D;
  --bone:       #EDEAE3;
  --bone-dim:   rgba(237, 234, 227, 0.55);
  --bone-dim-2: rgba(237, 234, 227, 0.25);
  --bone-dim-3: rgba(237, 234, 227, 0.08);
  --red:        #E11D2A;
  --red-dim:    rgba(225, 29, 42, 0.15);
  --ease-expo:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out:   cubic-bezier(0.22, 1, 0.36, 1);
}

html {
  scroll-behavior: auto; /* Lenis handles smooth scroll */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  max-width: 100%;
}

body {
  background: var(--black);
  color: var(--bone);
  font-family: Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  overflow-x: hidden;
  cursor: none;
}

img { display: block; max-width: 100%; background: #1a1a1a; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
::selection { background: var(--red); color: var(--bone); }

/* ── CUSTOM CURSOR ────────────────────────────────── */
#cursor-dot {
  position: fixed;
  width: 8px;
  height: 8px;
  background: white;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition:
    width   0.3s var(--ease-expo),
    height  0.3s var(--ease-expo);
  mix-blend-mode: difference;
  will-change: transform;
}
#cursor-dot.expanded { width: 60px; height: 60px; }

/* ── NAV ──────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  padding: 20px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.4s, border-color 0.4s, backdrop-filter 0.4s;
}
nav.scrolled {
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(237, 234, 227, 0.06);
}

.nav-logo-pill {
  display: flex;
  align-items: center;
  cursor: none;
  opacity: 0;
  transform: translateY(-10px);
  transition:
    opacity 0.6s var(--ease-expo),
    transform 0.6s var(--ease-expo);
}
.nav-logo-img {
  height: 48px;
  width: auto;
  display: block;
  object-fit: contain;
  transition: opacity 0.2s;
}
.nav-logo-pill:hover .nav-logo-img { opacity: 0.8; }

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
}

/* Dual-text slide effect — Quanta-style */
.nav-link-dual {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  height: 1.4em;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bone);
  cursor: none;
  opacity: 0;
  transform: translateY(-10px);
  transition:
    opacity 0.6s var(--ease-expo),
    transform 0.6s var(--ease-expo);
}
.nav-link-dual span {
  display: block;
  transition: transform 0.35s var(--ease-expo);
  line-height: 1.4;
}
.nav-link-dual span:last-child {
  position: absolute;
  top: 0; left: 0;
  transform: translateY(100%);
  color: var(--red);
}
.nav-link-dual:hover span:first-child { transform: translateY(-100%); }
.nav-link-dual:hover span:last-child  { transform: translateY(0); }

nav.loaded .nav-logo-pill { opacity: 1; transform: translateY(0); }
nav.loaded .nav-link-dual { opacity: 1; transform: translateY(0); }
nav.loaded .nav-links li:nth-child(1) .nav-link-dual { transition-delay: 0.05s; }
nav.loaded .nav-links li:nth-child(2) .nav-link-dual { transition-delay: 0.10s; }
nav.loaded .nav-links li:nth-child(3) .nav-link-dual { transition-delay: 0.15s; }
nav.loaded .nav-links li:nth-child(4) .nav-link-dual { transition-delay: 0.20s; }
nav.loaded .nav-links li:nth-child(5) .nav-link-dual { transition-delay: 0.25s; }
nav.loaded .nav-links li:nth-child(6) .nav-link-dual { transition-delay: 0.30s; }

/* ── GRAIN OVERLAY ────────────────────────────────── */
.grain { position: relative; }
.grain::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
  animation: grainPulse 8s ease-in-out infinite;
  z-index: 1;
}
@keyframes grainPulse {
  0%, 100% { opacity: 0.04; }
  50%       { opacity: 0.065; }
}

/* ── SECTION HEADER SHARED ────────────────────────── */
.section-header {
  padding: clamp(60px, 9vw, 100px) clamp(16px, 4vw, 48px) clamp(40px, 5.5vw, 64px);
  text-align: center;
}

.bracket-label {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 24px;
  font-weight: 500;
}
.bracket-label.dark { color: rgba(0,0,0,0.4); }

.section-heading {
  font-family: Helvetica, Arial, sans-serif;
  font-weight: 700;
  font-size: clamp(36px, 5vw, 64px);
  line-height: 0.95;
  letter-spacing: -0.05em;
  color: var(--bone);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}
.section-heading.dark { color: var(--black); }
.section-heading em { color: var(--red); font-style: normal; }

.section-sub {
  font-size: clamp(14px, 2vw, 17px);
  color: var(--bone-dim);
  max-width: 540px;
  margin-top: 20px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.65;
}
.section-sub.dark { color: rgba(0,0,0,0.6); }

/* ── CHAR / WORD SPLIT UTILITY ────────────────────── */
/* Chars start invisible — GSAP sets final state */
.char {
  display: inline-block;
  will-change: filter, opacity, transform;
}

/* ── RESPONSIVE ───────────────────────────────────── */
/* ── HAMBURGER ────────────────────────────────────── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  background: none;
  border: 1px solid rgba(237,234,227,0.15);
  padding: 10px 12px;
  border-radius: 4px;
  cursor: pointer;
  flex-shrink: 0;
}
.nav-hamburger span {
  display: block;
  width: 20px;
  height: 1px;
  background: var(--bone);
  transition: transform 0.35s var(--ease-expo), opacity 0.25s;
}
.nav-hamburger.open span:first-child { transform: rotate(45deg) translate(3px, 3.5px); }
.nav-hamburger.open span:last-child  { transform: rotate(-45deg) translate(3px, -3.5px); }

@media (hover: none), (pointer: coarse) {
  body { cursor: auto; }
  #cursor-dot { display: none; }
  /* Restore pointer on all interactive elements when touch device */
  a,
  button,
  .nav-logo-pill,
  .nav-link-dual,
  .nav-hamburger { cursor: pointer; }
}

@media (max-width: 960px) {
  nav { padding: 20px 24px; }
  .nav-links { gap: 20px; }
  .section-header { padding: 72px 24px 48px; }
}

@media (max-width: 900px) {
  .nav-hamburger { display: flex; }

  /* Full-screen mobile menu */
  .nav-links {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.97);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    z-index: 198;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s var(--ease-expo);
  }
  .nav-links.mobile-open {
    opacity: 1;
    pointer-events: all;
  }
  .nav-links li { width: auto; }
  .nav-link-dual {
    height: auto;
    overflow: visible;
    font-size: 24px;
    letter-spacing: 0.06em;
    padding: 12px 24px;
    opacity: 1 !important;
    transform: none !important;
  }
  .nav-link-dual span:last-child { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}