:root {
  --color-primary: #111111;
  --color-secondary: #1a1a1a;
  --color-text-primary: #ffffff;
  --color-text-secondary: rgba(255, 255, 255, 0.68);
  --color-accent: #a56cff;
  --color-accent-hover: #8e54e9;
  --color-border: rgba(255, 255, 255, 0.14);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

.bg-primary {
  background-color: var(--color-primary);
}

.bg-secondary {
  background-color: var(--color-secondary);
}

.text-secondary {
  color: var(--color-text-secondary);
}

.text-accent {
  color: var(--color-accent);
}

header {
  background-color: var(--color-primary);
  backdrop-filter: blur(10px);
}

header.scrolled {
  background-color: rgba(17, 17, 17, 0.95);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.nav-link {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.3s ease;
  font-size: 0.95rem;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-accent);
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-primary);
  padding: 0.75rem 1.75rem;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-block;
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(165, 108, 255, 0.3);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-primary);
  padding: 0.75rem 1.75rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-block;
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.mobile-menu {
  display: none;
  background-color: var(--color-secondary);
  border-top: 1px solid var(--color-border);
}

.mobile-menu.active {
  display: block;
}

.hero-gradient {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(165, 108, 255, 0.15) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

.hero-circle {
  position: absolute;
  top: -20%;
  right: -30%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(165, 108, 255, 0.4) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
  z-index: 0;
}

.hero-image {
  position: relative;
  z-index: 2;
}

.context-item {
  padding: 1.5rem 0;
}

.divider {
  height: 1px;
  background-color: var(--color-border);
}

.analysis-card {
  background-color: var(--color-secondary);
  border: 1px solid var(--color-border);
  border-radius: 24px;
  padding: 2rem;
  transition: all 0.3s ease;
}

.analysis-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 8px 32px rgba(165, 108, 255, 0.15);
  transform: translateY(-4px);
}

.service-card {
  background-color: var(--color-primary);
  border: 1px solid var(--color-border);
  border-radius: 24px;
  padding: 2rem;
  transition: all 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 8px 32px rgba(165, 108, 255, 0.15);
  transform: translateY(-4px);
}

.material-card {
  background-color: var(--color-primary);
  border: 1px solid var(--color-border);
  border-radius: 18px;
  padding: 1.5rem;
  transition: all 0.3s ease;
}

.material-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.contact-form {
  background-color: var(--color-secondary);
  border: 1px solid var(--color-border);
  border-radius: 24px;
  padding: 3rem;
}

.form-input {
  width: 100%;
  padding: 1rem;
  background-color: var(--color-primary);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  color: var(--color-text-primary);
  font-size: 1rem;
  transition: all 0.3s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(165, 108, 255, 0.1);
}

.form-input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.error-message {
  display: none;
  color: #ff6b6b;
  font-size: 0.875rem;
  margin-top: 0.5rem;
}

.error-message.active {
  display: block;
}

.form-input.error {
  border-color: #ff6b6b;
}

@media (max-width: 768px) {
  .contact-form {
    padding: 2rem 1.5rem;
  }

  h1 {
    font-size: 2.5rem !important;
  }

  h2 {
    font-size: 2rem !important;
  }
}

html {
  scroll-behavior: smooth;
}

img {
  max-width: 100%;
  height: auto;
}