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

:root {
  --ink:     #444444;
  --paper:   #FEFEF8;
  --electric: #00F0FF;
  --gray:    #4A5568;
}

body {
  font-family: 'Zen Kaku Gothic New', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.7;
  font-weight: 400;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    transparent,
    transparent 2px,
    rgba(68, 68, 68, 0.015) 2px,
    rgba(68, 68, 68, 0.015) 4px
  );
  pointer-events: none;
  z-index: 1;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }

/* Nav */
nav {
  position: sticky;
  top: 0;
  width: 100%;
  background: rgba(254, 254, 248, 0.95);
  backdrop-filter: blur(10px);
  z-index: 100;
  padding: 1.5rem 2rem;
  box-shadow: 0 1px 0 rgba(68, 68, 68, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  font-size: 0.9rem;
  color: var(--gray);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--ink); text-decoration: none; }

.nav-title {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.nav-title:hover { text-decoration: none; }

.nav-logo { border-radius: 50%; }

.lang-switch {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--gray);
  transition: color 0.2s;
}
.lang-switch:hover { color: var(--ink); text-decoration: none; }

/* Index page */
main {
  max-width: 800px;
  margin: 0 auto;
  padding: 80px 2rem 80px;
}

.intro {
  font-size: 1rem;
  color: var(--gray);
  margin-bottom: 1rem;
}

.tagline {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--gray);
  opacity: 0.7;
  margin-bottom: 3rem;
}

.section-label {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  opacity: 0.5;
  margin-bottom: 1.5rem;
}

.app-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.card {
  background: var(--paper);
  border: 2px solid var(--ink);
  padding: 2rem;
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  transition: border-color 0.2s;
}
.card:hover { border-color: var(--gray); }

.card-content { flex: 1; min-width: 0; }

.card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.5rem;
}
.card-header img { border-radius: 10px; flex-shrink: 0; }

.card-name {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.card-name:hover { text-decoration: underline; }

.card-desc {
  font-size: 0.95rem;
  color: var(--gray);
  margin-bottom: 1rem;
}

.card-meta {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  font-family: 'Space Grotesk', monospace;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--gray);
}

.card-meta span {
  border: 1px solid currentColor;
  padding: 0.1rem 0.5rem;
}

.card-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex-shrink: 0;
}

.btn {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.5rem 1rem;
  border: 1.5px solid var(--ink);
  color: var(--ink);
  text-decoration: none;
  text-align: center;
  white-space: nowrap;
  transition: background 0.2s, color 0.2s;
  cursor: pointer;
  background: transparent;
}
.btn:hover {
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
}

/* App detail page */
.app-detail {
  max-width: 720px;
  margin: 0 auto;
  padding: 60px 2rem 100px;
}

.back-link {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--gray);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 2.5rem;
}
.back-link:hover { color: var(--ink); text-decoration: none; }

.app-hero {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}
.app-hero img { border-radius: 18px; flex-shrink: 0; }

.app-hero-text h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.25rem;
}

.app-hero-meta {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--gray);
}

.app-desc {
  font-size: 1rem;
  color: var(--gray);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.app-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.app-actions .btn {
  font-size: 0.85rem;
  padding: 0.65rem 1.5rem;
}

/* Legal sections */
.legal-sections {
  border-top: 1px solid rgba(68, 68, 68, 0.15);
  display: flex;
  flex-direction: column;
  gap: 3rem;
  padding-top: 3rem;
}

.legal-section h2 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(68, 68, 68, 0.15);
}

.legal-section h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-top: 1.25rem;
  margin-bottom: 0.4rem;
}

.legal-section p,
.legal-section li {
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.8;
}

.legal-section ul {
  padding-left: 1.25rem;
  margin-top: 0.25rem;
}
.legal-section li { margin-bottom: 0.25rem; }

.legal-section a { color: var(--ink); text-decoration: underline; }

.legal-section table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.legal-section th,
.legal-section td {
  padding: 0.65rem 0.9rem;
  border: 1px solid rgba(68, 68, 68, 0.2);
  text-align: left;
  vertical-align: top;
}
.legal-section th {
  font-weight: 700;
  width: 38%;
  color: var(--ink);
}
.legal-section td { color: var(--gray); }

.legal-date {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.75rem;
  color: var(--gray);
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

/* Footer */
footer {
  margin-top: auto;
  border-top: 1px solid rgba(68, 68, 68, 0.15);
  padding: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--gray);
}

footer a { color: var(--gray); }
footer a:hover { color: var(--ink); text-decoration: none; }

footer div {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

/* Contact */
.contact {
  max-width: 560px;
  margin: 0 auto;
  padding: 60px 2rem 100px;
}

.contact h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.contact-desc {
  font-size: 0.95rem;
  color: var(--gray);
  margin-bottom: 2rem;
  line-height: 1.8;
}

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

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

.form-row label {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.contact input,
.contact select,
.contact textarea {
  width: 100%;
  padding: 0.7rem 1rem;
  background: var(--paper);
  border: 2px solid rgba(68, 68, 68, 0.3);
  color: var(--ink);
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
  appearance: none;
}

.contact input:focus,
.contact select:focus,
.contact textarea:focus { border-color: var(--ink); }

.contact textarea { resize: vertical; min-height: 140px; }

.form-status {
  font-size: 0.88rem;
  margin-top: 0.25rem;
}
.form-status.success { color: #22c55e; }
.form-status.error   { color: #ef4444; }

/* Responsive */
@media (max-width: 600px) {
  nav  { padding: 1.25rem 1.5rem; }
  main { padding: 60px 1.5rem 60px; }
  .card { flex-direction: column; }
  .card-actions { flex-direction: row; flex-wrap: wrap; }
  .app-detail { padding: 40px 1.5rem 80px; }
  .app-hero { flex-direction: column; align-items: flex-start; }
}