/* ========================================
   PESU - Cloudflare Pages Test Stylesheet
   テスト用 — 本番構築時に置き換え予定
   ======================================== */

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

:root {
  /* Color Palette — 青系統ベース */
  --color-primary: #1a3a5c;
  --color-primary-light: #2c5f8a;
  --color-accent: #3b82f6;
  --color-accent-light: #60a5fa;
  --color-bg: #f8fafc;
  --color-bg-dark: #0f172a;
  --color-text: #1e293b;
  --color-text-light: #64748b;
  --color-text-on-dark: #e2e8f0;
  --color-border: #e2e8f0;
  --color-success: #22c55e;
  --color-warning: #f59e0b;

  /* Typography */
  --font-sans: 'Noto Sans JP', 'Helvetica Neue', Arial, sans-serif;
  --font-serif: 'Noto Serif JP', 'Georgia', serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;

  /* Transitions */
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-primary-light);
}

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

/* --- Layout --- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* --- Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-base);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.site-header__logo {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}

.site-header__nav ul {
  display: flex;
  gap: var(--space-md);
  list-style: none;
}

.site-header__nav a {
  font-size: 0.85rem;
  color: var(--color-text-light);
  font-weight: 500;
  position: relative;
}

.site-header__nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.site-header__nav a:hover::after {
  width: 100%;
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 600px 600px at 20% 50%, rgba(59, 130, 246, 0.15), transparent),
    radial-gradient(ellipse 400px 400px at 80% 30%, rgba(96, 165, 250, 0.1), transparent);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  padding: var(--space-lg) var(--space-md);
}

.hero__badge {
  display: inline-block;
  padding: 0.4rem 1.2rem;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--color-accent-light);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
  backdrop-filter: blur(8px);
  background: rgba(255,255,255,0.05);
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
  margin-bottom: var(--space-sm);
}

.hero__subtitle {
  font-size: 1rem;
  color: var(--color-text-on-dark);
  opacity: 0.8;
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.hero__meta {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: var(--space-md);
}

/* Floating particles animation */
.hero__particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: rgba(96, 165, 250, 0.4);
  border-radius: 50%;
  animation: float-up linear infinite;
}

@keyframes float-up {
  0% {
    transform: translateY(100vh) scale(0);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-10vh) scale(1);
    opacity: 0;
  }
}

/* --- Sections --- */
.section {
  padding: var(--space-xl) 0;
}

.section--alt {
  background: #fff;
}

.section__label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.section__title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  line-height: 1.4;
}

.section__text {
  font-size: 0.95rem;
  color: var(--color-text-light);
  max-width: 640px;
  line-height: 1.9;
}

/* --- Check Grid --- */
.check-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.check-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: var(--space-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.check-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
}

.check-card__icon {
  font-size: 1.8rem;
  margin-bottom: var(--space-sm);
}

.check-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.check-card__status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  margin-top: var(--space-sm);
}

.check-card__status--ok {
  background: #dcfce7;
  color: #166534;
}

.check-card__status--pending {
  background: #fef3c7;
  color: #92400e;
}

.check-card__desc {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-top: var(--space-xs);
}

/* --- Environment Info --- */
.env-info {
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  border-radius: 12px;
  padding: var(--space-md);
  margin-top: var(--space-md);
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
  line-height: 2;
  overflow-x: auto;
}

.env-info__row {
  display: flex;
  gap: var(--space-sm);
}

.env-info__label {
  color: var(--color-accent-light);
  min-width: 160px;
  flex-shrink: 0;
}

.env-info__value {
  color: var(--color-text-on-dark);
}

/* --- Footer --- */
.site-footer {
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  padding: var(--space-lg) 0 var(--space-md);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  text-align: center;
}

.site-footer__logo {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.site-footer__org {
  font-size: 0.8rem;
  color: var(--color-text-light);
}

.site-footer__nav ul {
  display: flex;
  gap: var(--space-md);
  list-style: none;
  flex-wrap: wrap;
  justify-content: center;
}

.site-footer__nav a {
  font-size: 0.8rem;
  color: var(--color-text-light);
}

.site-footer__nav a:hover {
  color: #fff;
}

.site-footer__copy {
  font-size: 0.7rem;
  color: var(--color-text-light);
  opacity: 0.6;
  margin-top: var(--space-sm);
}

/* --- Sub Page --- */
.page-header {
  padding-top: calc(64px + var(--space-lg));
  padding-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  text-align: center;
}

.page-header__title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.page-header__subtitle {
  font-size: 0.9rem;
  opacity: 0.7;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .site-header__nav ul {
    gap: var(--space-sm);
  }

  .site-header__nav a {
    font-size: 0.75rem;
  }

  .check-grid {
    grid-template-columns: 1fr;
  }

  .env-info__row {
    flex-direction: column;
    gap: 0.2rem;
  }

  .env-info__label {
    min-width: auto;
  }
}