/* Webdesign-2: Typography & WebGPU 3D Shapes LP Stylesheet */

:root {
  --color-define: #FF2A5F;
  --color-define-glow: rgba(255, 42, 95, 0.15);
  --color-design: #00E599;
  --color-design-glow: rgba(0, 229, 153, 0.15);
  --color-develop: #2563EB;
  --color-develop-glow: rgba(37, 99, 235, 0.15);
  --bg-primary: #FAF8FC;
}

body {
  background-color: var(--bg-primary);
  color: #111827;
  overflow-x: hidden;
  font-family: 'Zen Maru Gothic', 'Fredoka', sans-serif;
}

/* Background 3D WebGPU Canvas */
#webgpu-canvas-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 1;
}

/* Typography Enhancements (Rounded Modern Display) */
.font-display {
  font-family: 'Fredoka', 'Zen Maru Gothic', sans-serif;
  letter-spacing: -0.03em;
}

.font-sans {
  font-family: 'Zen Maru Gothic', sans-serif;
}

.font-mono {
  font-family: 'JetBrains Mono', monospace;
}

.font-serif-jp {
  font-family: 'Noto Serif JP', 'Playfair Display', serif;
}

/* Giant Watermark Typography */
.watermark-text {
  font-size: clamp(4rem, 14vw, 15rem);
  font-weight: 900;
  line-height: 0.85;
  letter-spacing: -0.05em;
  opacity: 0.05;
  user-select: none;
  pointer-events: none;
}

/* Glassmorphic Minimal Card */
.glass-panel {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.04), 0 0 1px 1px rgba(0, 0, 0, 0.02);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-panel:hover {
  transform: translateY(-3px);
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.08), 0 0 1px 1px rgba(0, 0, 0, 0.03);
}

/* 3 Primary Accents */
.accent-define {
  color: var(--color-define);
}
.border-define {
  border-color: var(--color-define);
}
.bg-define-soft {
  background: var(--color-define-glow);
}

.accent-design {
  color: var(--color-design);
}
.border-design {
  border-color: var(--color-design);
}
.bg-design-soft {
  background: var(--color-design-glow);
}

.accent-develop {
  color: var(--color-develop);
}
.border-develop {
  border-color: var(--color-develop);
}
.bg-develop-soft {
  background: var(--color-develop-glow);
}

/* Shape Badges */
.badge-shape {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Interactive Interactive Cursor Tip */
.interactive-tip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: #6b7280;
  border: 1px solid rgba(107, 114, 128, 0.2);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.6);
}

/* Number Callout */
.step-number {
  font-size: clamp(3rem, 7vw, 6.5rem);
  line-height: 1;
  font-weight: 900;
  letter-spacing: -0.06em;
}

/* Subtle Grid Guide */
.bg-grid-pattern {
  background-size: 40px 40px;
  background-image: 
    linear-gradient(to right, rgba(0, 0, 0, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.03) 1px, transparent 1px);
}

/* ==========================================================================
   Wavy / Undulating Typography Animation (Organic Perpetual Letters)
   ========================================================================== */
@keyframes letter-undulate {
  0% {
    transform: translateY(0px) rotate(0deg) scale(1, 1);
  }
  25% {
    transform: translateY(-22px) rotate(-2deg) scale(0.97, 1.04);
  }
  50% {
    transform: translateY(0px) rotate(0deg) scale(1, 1);
  }
  75% {
    transform: translateY(14px) rotate(1.8deg) scale(1.03, 0.97);
  }
  100% {
    transform: translateY(0px) rotate(0deg) scale(1, 1);
  }
}

.wave-text {
  display: inline-flex;
  white-space: nowrap;
}

.wave-char {
  display: inline-block;
  transform-origin: 50% 80%;
  will-change: transform;
  animation: letter-undulate var(--wave-dur, 3.2s) ease-in-out infinite;
  animation-delay: calc(var(--i, 0) * -0.16s + var(--wave-offset, 0s));
}

/* Polyrhythmic wave periods & offsets for the 3 primary rows */
.wave-row-1 .wave-char {
  --wave-dur: 3.0s;
  --wave-offset: 0s;
}

.wave-row-2 .wave-char {
  --wave-dur: 3.6s;
  --wave-offset: -1.2s;
}

.wave-row-3 .wave-char {
  --wave-dur: 4.2s;
  --wave-offset: -2.4s;
}

/* ==========================================================================
   Japanese Subcopy Wave Animation (Same physics, scaled for Japanese font)
   ========================================================================== */
@keyframes letter-undulate-sub {
  0%, 100% {
    transform: translateY(0px) rotate(0deg) scale(1, 1);
  }
  25% {
    transform: translateY(-9px) rotate(-1.5deg) scale(0.98, 1.02);
  }
  50% {
    transform: translateY(0px) rotate(0deg) scale(1, 1);
  }
  75% {
    transform: translateY(6px) rotate(1.2deg) scale(1.02, 0.98);
  }
}

.subcopy-wave {
  display: inline-flex;
  white-space: nowrap;
}

.subcopy-wave .wave-char {
  animation-name: letter-undulate-sub;
  animation-delay: calc(var(--i, 0) * -0.11s + var(--wave-offset, 0s) - 0.25s);
}