:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --text-primary: #ffffff;
  --text-secondary: #9ca3af;
  --accent: #c9952e;
  --font-main: 'Inter', 'Noto Sans JP', sans-serif;
}

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

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.7;
  overflow-x: hidden;
}

/* Header */
.header-scrolled {
  background: rgba(10, 14, 26, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.3);
}

/* Hero gradient text */
.gradient-text {
  background: linear-gradient(135deg, var(--accent), #f0d68a);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Fade-in animation */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Keyframes */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* Cards hover */
.feature-card,
.service-card,
.testimonial-card {
  background: var(--bg-secondary);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover,
.service-card:hover,
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 40px rgba(201, 149, 46, 0.1);
}

/* CTA section glow */
.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(201, 149, 46, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

/* Form focus */
input:focus,
textarea:focus {
  border-color: var(--accent);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--text-secondary);
  border-radius: 4px;
}

/* Selection */
::selection {
  background: var(--accent);
  color: var(--bg-primary);
}

/* Responsive tweaks */
@media (max-width: 768px) {
  .hero-section {
    min-height: 80vh;
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}