@import url('https://fonts.googleapis.com/css2?family=Archivo+Black&family=Poppins:wght@300;400;600;700&display=swap');

:root {
  --audio-surface: #ffffff;
  --audio-bg: #F4F0F8;
  --audio-vibe: #4A148C;
  --audio-pulse: #D500F9;
  --audio-wave: #00E5FF;
  --audio-deep: #1A1025;
  --audio-text: #2D2438;
  --audio-text-light: #ffffff;
  --audio-edge: #E1BEE7;
  --audio-shadow: rgba(74, 20, 140, 0.15);
  
  --audio-gradient: linear-gradient(135deg, #4A148C 0%, #D500F9 100%);
  --audio-gradient-rev: linear-gradient(135deg, #D500F9 0%, #4A148C 100%);
  
  --font-display: 'Archivo Black', sans-serif;
  --font-body: 'Poppins', sans-serif;
}

body {
  font-family: var(--font-body);
  color: var(--audio-text);
  background-color: var(--audio-bg);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--audio-deep);
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

/* Custom UI Elements instead of standard classes */
.sound-boundary {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.vibe-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 9999px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  font-family: var(--font-display);
}

.vibe-action-bold {
  background-color: var(--audio-wave);
  color: var(--audio-deep);
  box-shadow: 0 8px 20px rgba(0, 229, 255, 0.3);
}

.vibe-action-bold:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 25px rgba(0, 229, 255, 0.5);
  background-color: #ffffff;
}

.vibe-action-outline {
  background-color: transparent;
  color: var(--audio-text-light);
  border: 2px solid var(--audio-wave);
}

.vibe-action-outline:hover {
  background-color: var(--audio-wave);
  color: var(--audio-deep);
}

/* CSS-only Mobile Menu */
.audio-nav-toggle {
  display: none;
}
.audio-menu-icon {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 6px;
}
.audio-menu-icon span {
  display: block;
  width: 30px;
  height: 3px;
  background-color: var(--audio-text-light);
  transition: 0.3s;
}

@media (max-width: 768px) {
  .audio-menu-icon {
    display: flex;
  }
  .audio-nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--audio-vibe);
    flex-direction: column;
    padding: 1rem 0;
    box-shadow: 0 10px 20px var(--audio-shadow);
  }
  .audio-nav-links a {
    padding: 1rem 2rem;
    display: block;
  }
  .audio-nav-toggle:checked ~ .audio-nav-links {
    display: flex;
  }
  .audio-nav-toggle:checked ~ .audio-menu-icon span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }
  .audio-nav-toggle:checked ~ .audio-menu-icon span:nth-child(2) {
    opacity: 0;
  }
  .audio-nav-toggle:checked ~ .audio-menu-icon span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }
}

/* Preset C Specifics */
.offset-media-box {
  margin-left: -2rem;
  box-shadow: 20px 20px 0 var(--audio-pulse);
  border-radius: 0;
  position: relative;
  z-index: 2;
}

@media (max-width: 768px) {
  .offset-media-box {
    margin-left: 0;
    box-shadow: 10px 10px 0 var(--audio-pulse);
  }
}

.feature-row-layer {
  border-bottom: 2px solid var(--audio-edge);
  padding: 2rem 0;
}
.feature-row-layer:last-child {
  border-bottom: none;
}

.step-connector-line {
  position: relative;
  padding-left: 3rem;
}
.step-connector-line::before {
  content: '';
  position: absolute;
  left: 1rem;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--audio-gradient);
  border-radius: 4px;
}
.step-node {
  position: absolute;
  left: -0.2rem;
  top: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--audio-pulse);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.25rem;
  box-shadow: 0 4px 10px rgba(213, 0, 249, 0.4);
}

details > summary {
  list-style: none;
}
details > summary::-webkit-details-marker {
  display: none;
}
details[open] summary ~ * {
  animation: sweep .5s ease-in-out;
}
@keyframes sweep {
  0%    {opacity: 0; margin-top: -10px}
  100%  {opacity: 1; margin-top: 0px}
}