@layer reset, tokens, base, components;

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

@layer tokens {
  :root {
    --color-navy-dark: #1a365d;
    --color-navy-light: #2c5282;
    --color-accent-primary: #2563eb;
    --color-accent-error: #f85149;
    --color-bg-dark: #0d1117;
    --color-text-primary: #ffffff;
    --color-text-secondary: #8b949e;

    --font-family-base: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Oxygen, Ubuntu, sans-serif;

    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 2rem;
    --space-xl: 4rem;

    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
  }
}

@layer base {
  html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
  }

  body {
    font-family: var(--font-family-base);
    color: var(--color-text-primary);
    min-height: 100vh;
  }

  :focus-visible {
    outline: 2px solid var(--color-accent-primary);
    outline-offset: 2px;
  }

  @media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
    }
  }
}

@layer components {
  .landing {
    overflow: hidden;
    position: relative;
  }

  .background {
    position: fixed;
    inset: 0;
    z-index: 0;
    background: radial-gradient(ellipse at 50% 50%, var(--color-navy-dark) 0%, var(--color-bg-dark) 70%);
  }

  .wave-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
  }

  .hero {
    position: relative;
    z-index: 2;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    text-align: center;
  }

  .hero__title {
    font-size: clamp(3rem, 12vw, 9rem);
    font-weight: 900;
    font-style: italic;
    letter-spacing: -0.02em;
    line-height: 1;
    display: inline-flex;
    align-items: baseline;
    transform: skewX(-5deg);
    opacity: 0;
    animation: fade-in 0.8s ease-out 0.3s forwards;
  }

  .hero__dot {
    position: relative;
    display: inline-block;
    width: 0.12em;
    height: 0.12em;
    margin-inline-start: 0;
    margin-inline-end: 0.08em;
    margin-block-end: 0.08em;
    background: var(--color-accent-primary);
    border-radius: 50%;
    align-self: flex-end;
    box-shadow:
      0 0 8px var(--color-accent-primary),
      0 0 16px color-mix(in srgb, var(--color-accent-primary) 50%, transparent);

    &.is-pulsing {
      animation: dot-pulse 0.6s ease-out;
    }
  }

  .hero__divider {
    width: 6rem;
    height: 1px;
    margin-block: var(--space-xl) var(--space-lg);
    margin-inline: auto;
    background: linear-gradient(90deg, transparent, var(--color-text-secondary), transparent);
    border: none;
    opacity: 0;
    animation: fade-in 0.8s ease-out 0.6s forwards;
  }

  .hero__tagline {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    letter-spacing: 0.03em;
    opacity: 0;
    animation: fade-in 0.8s ease-out 0.6s forwards;
  }

  .site-footer {
    position: fixed;
    inset-block-end: 0;
    inset-inline: 0;
    padding: var(--space-md);
    text-align: center;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    letter-spacing: 0.05em;
    z-index: 2;
    opacity: 0;
    animation: fade-in 0.8s ease-out 0.9s forwards;
  }

  @keyframes fade-in {
    to { opacity: 1; }
  }

  @keyframes dot-pulse {
    0% {
      transform: scale(1);
      box-shadow:
        0 0 8px var(--color-accent-primary),
        0 0 16px color-mix(in srgb, var(--color-accent-primary) 50%, transparent);
    }
    50% {
      transform: scale(1.8);
      box-shadow:
        0 0 20px var(--color-accent-primary),
        0 0 40px color-mix(in srgb, var(--color-accent-primary) 80%, transparent);
    }
    100% {
      transform: scale(1);
      box-shadow:
        0 0 8px var(--color-accent-primary),
        0 0 16px color-mix(in srgb, var(--color-accent-primary) 50%, transparent);
    }
  }

  @media print {
    .background,
    .wave-canvas {
      display: none;
    }

    body {
      background: white;
      color: black;
    }

    .hero__dot {
      background: black;
      box-shadow: none;
    }
  }
}