/* ============================================================
   LANDING GATE — full-screen intro overlay
   Locks scrolling until the visitor clicks "ENTER MY SITE".
   ============================================================ */

html.gate-locked,
html.gate-locked body {
  height: 100%;
  overflow: hidden;
}

.landing-gate {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;
  overflow: hidden;
  background: #000;
  opacity: 1;
  transition: opacity 0.9s ease;
}

.landing-gate.gate-hidden {
  opacity: 0;
  pointer-events: none;
}

/* ── BACKGROUND SLIDESHOW ─────────────────────────────────── */
.landing-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.landing-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  filter: grayscale(0.55) contrast(1.2) brightness(0.55) saturate(1.1);
  transform: scale(1.05);
  transition: opacity 1.8s ease, transform 9s ease-out;
}

.landing-slide.active {
  opacity: 1;
  transform: scale(1);
}

/* ── GRAIN TEXTURE ─────────────────────────────────────────── */
.landing-grain {
  position: absolute;
  inset: -60px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.28;
  mix-blend-mode: overlay;
  animation: grainShift 1s steps(6) infinite;
  pointer-events: none;
}

@keyframes grainShift {
  0%   { transform: translate(0, 0); }
  20%  { transform: translate(-4%, 3%); }
  40%  { transform: translate(3%, -5%); }
  60%  { transform: translate(-3%, 4%); }
  80%  { transform: translate(4%, 2%); }
  100% { transform: translate(0, 0); }
}

/* ── VIGNETTE / DARK OVERLAY ──────────────────────────────── */
.landing-vignette {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at center, rgba(0, 0, 0, 0.15) 0%, rgba(0, 0, 0, 0.78) 85%),
    rgba(0, 0, 0, 0.35);
  pointer-events: none;
}

/* ── CONTENT ───────────────────────────────────────────────── */
.landing-content {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1.5rem;
}

.enter-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: #fff;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: clamp(1rem, 2.4vw, 1.5rem);
  letter-spacing: 0.35em;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
  padding: 1rem 0.5rem;
}

.enter-btn-text {
  transition: letter-spacing 0.4s ease, opacity 0.3s ease;
}

.enter-btn-line {
  display: block;
  width: 220px;
  max-width: 60vw;
  height: 2px;
  background: rgba(255, 255, 255, 0.65);
  transform: scaleX(0.3);
  transform-origin: center;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.4s ease, background-color 0.4s ease;
}

.enter-btn:hover .enter-btn-text,
.enter-btn:focus-visible .enter-btn-text {
  letter-spacing: 0.5em;
}

.enter-btn:hover .enter-btn-line,
.enter-btn:focus-visible .enter-btn-line {
  transform: scaleX(1);
  background: #fff;
  box-shadow: 0 0 14px rgba(255, 255, 255, 0.85);
}

.enter-btn:active .enter-btn-line {
  box-shadow: 0 0 20px rgba(255, 255, 255, 1);
}

.enter-btn:focus-visible {
  outline: 1px dashed rgba(255, 255, 255, 0.6);
  outline-offset: 8px;
}

@media (max-width: 600px) {
  .enter-btn { letter-spacing: 0.25em; }
  .enter-btn:hover .enter-btn-text,
  .enter-btn:focus-visible .enter-btn-text { letter-spacing: 0.35em; }
}