/**
 * 07 — Hero / Signal Field Stylesheet
 * Neuform.ai Design System Specification
 * Dark Luxury, Kinetic WebGL Backdrop, Haute Couture Inter & JetBrains Mono Typography
 */

/* ─── LIQUID GLASS NAVBAR STYLING ─── */
.site-header {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 80px !important;
  z-index: 1000 !important;
  background: rgba(7, 7, 10, 0.75) !important;
  backdrop-filter: blur(20px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(20px) saturate(180%) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
}

.signal-hero-section {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: #07070a;
  color: #fafafa;
  font-family: 'Inter', -apple-system, sans-serif;
  padding: 80px 48px 40px;
  box-sizing: border-box;
}

/* Three.js Background Canvas */
.signal-three-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  display: block;
}

/* Gradient Contrast Overlays - Softer top and right to illuminate kinetic rods */
.signal-overlay-gradient {
  pointer-events: none;
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    radial-gradient(ellipse 65% 55% at 78% 32%, rgba(255, 91, 22, 0.08) 0%, transparent 65%),
    linear-gradient(270deg, rgba(7, 7, 10, 0.82) 0%, rgba(7, 7, 10, 0.48) 48%, transparent 88%),
    linear-gradient(180deg, rgba(7, 7, 10, 0.52) 0%, transparent 22%, transparent 72%, rgba(7, 7, 10, 0.96) 100%);
}

/* Center Content */
.signal-hero-main {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 64px 48px;
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
}

.signal-title {
  font-family: 'Inter', -apple-system, sans-serif;
  font-size: clamp(3.5rem, 8.5vw, 8.2rem);
  font-weight: 700;
  line-height: 0.88;
  letter-spacing: -0.07em;
  color: #fafafa;
  margin-bottom: 32px;
  max-width: 1100px;
  text-transform: uppercase;
  overflow: visible;
}

/* Letter-by-letter kinetic cascade */
.signal-hero-section:not(.is-ready) .signal-char,
.signal-hero-section:not(.is-ready) .signal-subtitle,
.signal-hero-section:not(.is-ready) .signal-btn-primary,
.signal-hero-section:not(.is-ready) .signal-btn-link {
  opacity: 0 !important;
  visibility: hidden;
}

.signal-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(-90px) scaleY(1.22);
  filter: blur(10px);
  will-change: transform, opacity, filter;
}

.signal-hero-section.is-ready .signal-char {
  visibility: visible;
  animation: signalCharDrop 0.65s cubic-bezier(0.2, 0.95, 0.3, 1) forwards;
}

.signal-title-accent {
  display: inline-block;
  position: relative;
  white-space: nowrap;
}

.signal-char-accent {
  background: linear-gradient(135deg, #ffffff 0%, #ff5b16 52%, #ffa033 100%);
  background-size: 1300% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 28px rgba(255, 91, 22, 0.4));
}

@keyframes signalCharDrop {
  0% {
    opacity: 0;
    transform: translateY(-90px) scaleY(1.22);
    filter: blur(10px);
  }
  62% {
    opacity: 1;
    transform: translateY(3px) scaleY(0.97);
    filter: blur(0px);
  }
  82% {
    transform: translateY(-1px) scaleY(1.01);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scaleY(1);
    filter: blur(0px);
  }
}

/* Subtitle - Lateral convergence & glide reveal */
.signal-subtitle {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  line-height: 1.8;
  letter-spacing: 0.08em;
  color: #8b8b96;
  max-width: 680px;
  margin-bottom: 44px;
  text-transform: uppercase;
  opacity: 0;
  visibility: hidden;
  transform: translateY(22px);
  will-change: transform, opacity, filter, letter-spacing;
}

.signal-hero-section.is-ready .signal-subtitle {
  animation: signalSubtitleReveal 0.75s cubic-bezier(0.16, 1, 0.3, 1) both;
  animation-delay: 1500ms;
}

@keyframes signalSubtitleReveal {
  0% {
    opacity: 0;
    visibility: hidden;
    letter-spacing: 0.18em;
    transform: translateY(22px);
    filter: blur(8px);
  }
  1% {
    visibility: visible;
  }
  50% {
    opacity: 0.85;
    letter-spacing: 0.10em;
    filter: blur(2px);
  }
  100% {
    opacity: 1;
    visibility: visible;
    letter-spacing: 0.08em;
    transform: translateY(0);
    filter: blur(0px);
  }
}

.signal-cta-group {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* Primary Button - Aperture Dissolve Reveal */
.signal-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #fafafa;
  color: #07070a !important;
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 18px 36px;
  border-radius: 4px;
  text-decoration: none;
  box-shadow: rgba(255, 91, 22, 0.35) 0px 18px 40px -18px, rgba(0, 0, 0, 0.6) 0px 2px 6px 0px;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.86) translateY(14px);
  will-change: transform, opacity, filter, box-shadow;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease, background-color 0.25s ease;
}

.signal-hero-section.is-ready .signal-btn-primary {
  animation: signalApertureOpen 0.75s cubic-bezier(0.16, 1, 0.3, 1) both;
  animation-delay: 2050ms;
}

.signal-btn-primary:hover {
  transform: translateY(-2px) scale(1) !important;
  background: #ffffff;
  color: #07070a !important;
  box-shadow: rgba(255, 91, 22, 0.65) 0px 20px 48px -12px;
}

.signal-btn-primary .signal-arrow {
  display: inline-block;
  font-size: 14px;
  line-height: 1;
  transition: transform 0.25s ease;
}

.signal-btn-primary:hover .signal-arrow {
  transform: translateY(2px);
}

/* Secondary Button - Aperture Dissolve Stagger */
.signal-btn-link {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #8b8b96 !important;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.88) translateY(12px);
  will-change: transform, opacity, filter, color;
  transition: color 0.2s ease, transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.signal-hero-section.is-ready .signal-btn-link {
  animation: signalApertureOpen 0.75s cubic-bezier(0.16, 1, 0.3, 1) both;
  animation-delay: 2200ms;
}

.signal-btn-link:hover {
  color: #fafafa !important;
  transform: translateY(-1px) scale(1) !important;
}

@keyframes signalApertureOpen {
  0% {
    opacity: 0;
    visibility: hidden;
    transform: scale(0.86) translateY(14px);
    filter: blur(14px);
  }
  1% {
    visibility: visible;
  }
  50% {
    opacity: 0.75;
    filter: blur(3px);
  }
  100% {
    opacity: 1;
    visibility: visible;
    transform: scale(1) translateY(0);
    filter: blur(0px);
  }
}

/* Responsive */
@media (max-width: 1024px) {
  .signal-title {
    font-size: clamp(3rem, 9vw, 5.5rem);
  }
  .signal-hero-main {
    padding: 48px 24px;
  }
}

@media (max-width: 768px) {
  .signal-hero-section {
    padding: 100px 20px 60px;
    min-height: auto;
  }
  .signal-hero-main {
    padding: 32px 0;
  }
  .signal-title {
    font-size: clamp(2.4rem, 10vw, 3.8rem);
    line-height: 0.95;
    letter-spacing: -0.05em;
    margin-bottom: 24px;
  }
  .signal-subtitle {
    font-size: 12px;
    margin-bottom: 32px;
  }
  .signal-cta-group {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 12px;
  }
  .signal-btn-primary {
    justify-content: center;
    width: 100%;
  }
  .signal-btn-link {
    justify-content: center;
    width: 100%;
  }
}

/* Reduced Motion Accessibility */
@media (prefers-reduced-motion: reduce) {
  .signal-char,
  .signal-subtitle,
  .signal-btn-primary,
  .signal-btn-link {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    animation: none !important;
  }
}