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

:root {
  --glass-dark: rgba(30, 41, 59, 0.55);
  --glass-dark-strong: rgba(24, 33, 48, 0.7);
  --color-text: #ffffff;
  --color-text-muted: rgba(255, 255, 255, 0.8);
  --color-primary: #60a5fa;
  --color-primary-hover: #93c5fd;
  --color-border: rgba(255, 255, 255, 0.15);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
  --radius: 12px;
  --font-sans: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('https://images.unsplash.com/photo-1498050108023-c5249f4df085?auto=format&fit=crop&w=1920&q=80');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: -2;
}

body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.4) 0%, rgba(30, 41, 59, 0.35) 100%);
  z-index: -1;
}

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

a:hover {
  text-decoration: underline;
}

/* Layout */
.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* Hero / Header */
.hero {
  text-align: center;
  margin-bottom: 2rem;
  padding: 2.5rem 2rem;
}

.hero h1 {
  font-size: 2.75rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.hero .tagline {
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--color-text-muted);
  margin: 0;
}

/* Sections - Frosted Glass */
.section {
  background: var(--glass-dark);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
}

.section h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}

.company-description {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--color-text-muted);
}

/* Info List (Company Overview) */
.info-list,
.business-list {
  list-style: none;
}

.info-item,
.business-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
}

.info-item:last-child,
.business-item:last-child {
  border-bottom: none;
}

.info-item dt,
.business-item dt {
  font-weight: 500;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.info-item dd,
.business-item dd {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text);
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

  .info-item,
  .business-item {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }
}

/* Contact Form */
.form-status {
  margin-bottom: 1rem;
  padding: 0.75rem;
  border-radius: 6px;
  font-size: 0.9rem;
}

.form-status--success {
  background: rgba(34, 197, 94, 0.2);
  color: #86efac;
  border: 1px solid rgba(34, 197, 94, 0.4);
}

.form-status--error {
  background: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.4);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color 0.2s, background 0.2s;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(96, 165, 250, 0.3);
  background: rgba(255, 255, 255, 0.12);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.submit-btn {
  align-self: flex-start;
  padding: 0.65rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  color: #0f172a;
  background: var(--color-primary);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s, transform 0.15s;
}

.submit-btn:hover {
  background: var(--color-primary-hover);
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem 0;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.85);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

footer a {
  color: rgba(255, 255, 255, 0.9);
}

.footer-sep {
  margin: 0 0.5rem;
  opacity: 0.7;
}

/* Privacy / Legal pages */
.page-content h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
  color: var(--color-text);
}

.page-content h3:first-child {
  margin-top: 0;
}

.page-content p,
.page-content ul {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--color-text-muted);
}

.page-content ul {
  padding-left: 1.25rem;
}