/* ===========================
   CSS Custom Properties
   =========================== */
:root {
  /* Colors */
  --color-primary: #EC008C;
  --color-text: #1a1a1a;
  --color-text-light: #666666;
  --color-bg: #ffffff;
  --color-bg-sub: #ffe9f6;
  --color-bg-header: #0e0e0e;
  --color-border: #e0d8cf;
  --color-cta: var(--color-primary);
  --color-cta-hover: #c86825;
  --color-cta-text: #ffffff;

  /* Hybrid LP追加カラー */
  --color-hero-bg: #1a1a2e;
  --color-hero-text: #ffffff;
  --color-step-bg: var(--color-bg);
  --color-step-border: var(--color-primary);

  /* Typography */
  --font-base: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --line-height-body: 1.9;
  --line-height-heading: 1.4;

  /* Spacing */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 48px;
  --space-xl: 80px;
}

/* ===========================
   Reset & Base
   =========================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: var(--line-height-body);
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ===========================
   Utilities
   =========================== */
.screenshot-placeholder {
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: var(--color-bg-sub);
  border: 2px dashed var(--color-border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 14px;
}

@keyframes cta-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.cta-button {
  display: inline-block;
  background-color: var(--color-cta);
  color: var(--color-cta-text);
  padding: 16px 40px;
  border-radius: 100px;
  font-size: 18px;
  font-weight: bold;
  text-decoration: none;
  transition: background-color 0.2s ease;
  animation: cta-pulse 2s ease-in-out infinite;
}

.cta-button:hover {
  background-color: var(--color-cta-hover);
  text-decoration: none;
  animation-play-state: paused;
}