/* ==============================
   AI Earth — v3 Stylesheet
   Apple minimalism + Linear dark + AI-forward
   ============================== */

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

:root {
  --bg:       #0a0a0a;
  --bg-up:    #111111;
  --bg-card:  #161616;
  --border:   #222222;
  --text:     #e8e8e8;
  --text-dim: #888888;
  --accent:   #3bf0a0;
  --accent2:  #2ad18a;
  --mono:     'JetBrains Mono', monospace;
  --sans:     'Outfit', 'Noto Sans JP', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
code { font-family: var(--mono); }

/* --- Nav --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(10, 10, 10, 0.7);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
.nav-right { display: flex; gap: 24px; align-items: center; }
.nav-link {
  font-size: 0.875rem;
  color: var(--text-dim);
  transition: color 0.2s;
}
.nav-link:hover { color: var(--text); }

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,240,160,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,240,160,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 50%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 50%, black, transparent);
}
.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(59,240,160,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
}
.hero-ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  border: 1px solid rgba(59,240,160,0.2);
  border-radius: 999px;
  padding: 6px 16px;
  margin-bottom: 32px;
}
.ai-pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

.hero h1 {
  font-size: clamp(2.5rem, 8vw, 6rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
.hero-sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-dim);
  max-width: 500px;
  margin: 0 auto 48px;
  font-weight: 300;
  line-height: 1.8;
}
.hero-ip {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}
.hero-ip code {
  font-size: 1.1rem;
  padding: 12px 32px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-up);
  transition: border-color 0.2s, background 0.2s;
}
.hero-ip:hover code {
  border-color: var(--accent);
  background: rgba(59,240,160,0.04);
}
.hero-ip-hint {
  font-size: 0.7rem;
  color: var(--text-dim);
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.6;
}

/* --- What section --- */
.what {
  padding: 120px 24px;
  border-top: 1px solid var(--border);
}
.what-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.what-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 16px;
}
.what-lead h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
}
.what-body p {
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

/* --- Bento grid --- */
.bento {
  padding: 0 24px 120px;
}
.bento-grid {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px 32px;
  transition: border-color 0.25s;
}
.bento-card:hover {
  border-color: rgba(59,240,160,0.25);
}
.bento-card--wide {
  grid-column: span 2;
}
.bento-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  display: block;
  margin-bottom: 12px;
}
.bento-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.bento-card p {
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* --- Join --- */
.join {
  padding: 120px 24px;
  border-top: 1px solid var(--border);
  text-align: center;
}
.join-inner {
  max-width: 800px;
  margin: 0 auto;
}
.join h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 48px;
  letter-spacing: -0.02em;
}
.join-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 48px;
}
.join-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 24px;
  text-align: center;
}
.join-card h4 {
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 16px;
  color: var(--text-dim);
}
.join-ip {
  cursor: pointer;
  margin-bottom: 12px;
}
.join-ip code {
  font-size: 1rem;
  color: var(--text);
  padding: 8px 20px;
  border: 1px solid var(--border);
  border-radius: 6px;
  display: inline-block;
  transition: border-color 0.2s;
}
.join-ip:hover code {
  border-color: var(--accent);
}
.join-meta {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-family: var(--mono);
}
.join-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}
.join-stack span {
  font-family: var(--mono);
  font-size: 0.7rem;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-dim);
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-dim);
}
.footer-mojang { opacity: 0.5; }

/* --- Animations --- */
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

/* --- Scroll reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .what-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .bento-grid {
    grid-template-columns: 1fr;
  }
  .bento-card--wide {
    grid-column: span 1;
  }
  .join-cards {
    grid-template-columns: 1fr;
  }
  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

/* --- Copyable feedback --- */
.copyable.copied code {
  border-color: var(--accent) !important;
}
.copyable.copied .hero-ip-hint {
  color: var(--accent);
}

/* --- Nav enhancements --- */
.nav-link--active { color: var(--text) !important; }
.nav-link--accent {
  color: var(--accent) !important;
  border: 1px solid rgba(59,240,160,0.3);
  border-radius: 6px;
  padding: 4px 12px;
  font-size: 0.8rem !important;
}
.nav-link--accent:hover { background: rgba(59,240,160,0.08); }

/* --- Footer links --- */
.footer-links { display: flex; gap: 16px; }
.footer-links a {
  color: var(--text-dim);
  font-size: 0.75rem;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--accent); }

/* --- Page Hero (subpages) --- */
.page-hero {
  padding: 140px 24px 80px;
  text-align: center;
  position: relative;
}
.page-hero-inner { max-width: 800px; margin: 0 auto; }
.page-hero h1 {
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.page-hero-sub {
  color: var(--text-dim);
  font-size: 1rem;
  font-weight: 300;
}

/* ===========================
   STATUS PAGE
   =========================== */
.status-section { padding: 0 24px 120px; }
.status-inner { max-width: 900px; margin: 0 auto; }

.status-overall {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px 32px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  margin-bottom: 24px;
}
.status-overall--ok { border-color: rgba(59,240,160,0.3); background: rgba(59,240,160,0.04); }
.status-overall--warn { border-color: rgba(255,200,50,0.3); background: rgba(255,200,50,0.04); }
.status-overall--down { border-color: rgba(255,80,80,0.3); background: rgba(255,80,80,0.04); }

.status-overall h2 { font-size: 1.1rem; font-weight: 600; margin-bottom: 2px; }
.status-overall p { font-size: 0.8rem; color: var(--text-dim); font-family: var(--mono); }

.status-icon-ok {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(59,240,160,0.15); color: var(--accent);
  font-size: 1.2rem; font-weight: 700;
}
.status-icon-warn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,200,50,0.15); color: #ffc832;
  font-size: 1.2rem; font-weight: 700;
}
.status-icon-x, .status-icon-down {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,80,80,0.15); color: #ff5050;
  font-size: 1.2rem; font-weight: 700;
}
.status-spinner {
  display: inline-block; width: 32px; height: 32px;
  border: 3px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.status-players {
  text-align: center;
  padding: 32px 0;
  margin-bottom: 24px;
}
.status-players-num {
  font-size: 3rem; font-weight: 900; color: var(--accent);
  font-family: var(--mono);
}
.status-players-label {
  font-size: 1rem; color: var(--text-dim); margin-left: 4px;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 48px;
}
.status-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  transition: border-color 0.2s;
}
.status-card--ok { border-left: 3px solid var(--accent); }
.status-card--down { border-left: 3px solid #ff5050; }
.status-card-header {
  display: flex; align-items: center; gap: 8px; margin-bottom: 12px;
}
.status-card-icon { font-size: 1.1rem; }
.status-card-name { font-weight: 600; font-size: 0.85rem; flex: 1; }
.status-latency {
  font-family: var(--mono); font-size: 0.7rem; color: var(--text-dim);
  background: rgba(59,240,160,0.08); padding: 2px 8px; border-radius: 4px;
}
.status-card-body { display: flex; align-items: center; gap: 6px; margin-bottom: 6px; }
.status-dot {
  width: 8px; height: 8px; border-radius: 50%;
}
.status-dot--ok { background: var(--accent); box-shadow: 0 0 8px rgba(59,240,160,0.4); }
.status-dot--down { background: #ff5050; box-shadow: 0 0 8px rgba(255,80,80,0.4); }
.status-card-status { font-size: 0.8rem; font-weight: 500; }
.status-card-desc { font-size: 0.7rem; color: var(--text-dim); }

.status-info {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.status-info-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; padding: 32px;
}
.status-info-card h3 { font-size: 1rem; margin-bottom: 16px; }
.status-table { width: 100%; border-collapse: collapse; }
.status-table td {
  padding: 8px 0; font-size: 0.85rem; border-bottom: 1px solid var(--border);
}
.status-table td:first-child { color: var(--text-dim); width: 40%; }
.status-table td code { font-size: 0.8rem; }
.status-link { color: var(--accent); transition: opacity 0.2s; }
.status-link:hover { opacity: 0.8; }

/* ===========================
   HELP PAGE
   =========================== */
.help-section { padding: 0 24px 120px; }
.help-inner { max-width: 900px; margin: 0 auto; }

.help-block {
  margin-bottom: 64px;
  border-top: 1px solid var(--border);
  padding-top: 48px;
}
.help-block h2 {
  font-size: 1.5rem; font-weight: 700; margin-bottom: 32px;
  display: flex; align-items: center; gap: 16px;
  letter-spacing: -0.02em;
}
.help-num {
  font-family: var(--mono); font-size: 0.7rem;
  color: var(--accent); background: rgba(59,240,160,0.08);
  padding: 4px 10px; border-radius: 4px; letter-spacing: 0.05em;
}
.help-content { padding-left: 0; }
.help-content p { color: var(--text-dim); font-size: 0.9rem; line-height: 1.8; margin-bottom: 16px; }
.help-content p strong { color: var(--text); }

.help-step {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 24px; margin-bottom: 16px;
}
.help-step h3 { font-size: 1rem; margin-bottom: 12px; }

.help-code-block { margin: 16px 0; }
.help-code-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px; background: var(--bg-up);
  border: 1px solid var(--border); border-radius: 6px;
  margin-bottom: 6px;
}
.help-code-label {
  font-family: var(--mono); font-size: 0.65rem;
  text-transform: uppercase; color: var(--accent);
  min-width: 60px; letter-spacing: 0.1em;
}
.help-code-row code { font-size: 0.9rem; }

.help-cmd {
  background: var(--bg-up); border: 1px solid var(--border);
  border-radius: 6px; padding: 12px 20px;
  display: inline-block; margin: 8px 0;
}
.help-cmd code { color: var(--accent); font-size: 0.9rem; }

.help-cmd-group { margin: 24px 0; }
.help-cmd-group h4 {
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--accent); font-family: var(--mono); margin-bottom: 12px;
}

.help-table { width: 100%; border-collapse: collapse; }
.help-table td, .help-table th {
  padding: 10px 12px; font-size: 0.85rem;
  border-bottom: 1px solid var(--border); text-align: left;
}
.help-table td:first-child { width: 40%; }
.help-table td:first-child code {
  color: var(--accent); background: rgba(59,240,160,0.06);
  padding: 2px 8px; border-radius: 4px; font-size: 0.8rem;
}
.help-table td:last-child { color: var(--text-dim); }
.help-table th {
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-dim); font-family: var(--mono);
}

.help-tip {
  background: rgba(59,240,160,0.04); border: 1px solid rgba(59,240,160,0.15);
  border-radius: 8px; padding: 16px 20px; margin-top: 16px;
  font-size: 0.85rem; color: var(--text-dim); line-height: 1.6;
}

.help-skills-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 8px; margin: 20px 0;
}
.help-skill {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 8px; padding: 12px; text-align: center;
  font-size: 0.8rem; font-weight: 500;
}
.help-skill span { display: block; font-size: 1.2rem; margin-bottom: 4px; }

.help-landmarks {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 8px; margin: 20px 0;
}
.help-landmark {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 8px; padding: 14px 16px;
  font-size: 0.85rem; font-weight: 500;
  display: flex; justify-content: space-between; align-items: center;
}
.help-landmark span { color: var(--text-dim); font-size: 0.75rem; font-weight: 400; }

.help-faq { display: flex; flex-direction: column; gap: 8px; }
.help-faq details {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 8px; overflow: hidden;
}
.help-faq summary {
  padding: 16px 20px; cursor: pointer;
  font-weight: 500; font-size: 0.9rem;
  list-style: none; position: relative;
}
.help-faq summary::after {
  content: "+"; position: absolute; right: 20px; top: 50%;
  transform: translateY(-50%); color: var(--accent);
  font-family: var(--mono); font-size: 1.2rem;
}
.help-faq details[open] summary::after { content: "−"; }
.help-faq details[open] summary { border-bottom: 1px solid var(--border); }
.help-faq details p {
  padding: 16px 20px; margin: 0; font-size: 0.85rem;
}

/* ===========================
   TERMS PAGE
   =========================== */
.terms-section { padding: 0 24px 120px; }
.terms-inner { max-width: 800px; margin: 0 auto; }

.terms-notice {
  background: rgba(59,240,160,0.04); border: 1px solid rgba(59,240,160,0.15);
  border-radius: 10px; padding: 24px; margin-bottom: 48px;
}
.terms-notice p { color: var(--text-dim); font-size: 0.9rem; line-height: 1.8; margin: 0; }

.terms-block {
  margin-bottom: 64px;
  border-top: 1px solid var(--border);
  padding-top: 48px;
}
.terms-block h2 {
  font-size: 1.5rem; font-weight: 700; margin-bottom: 32px;
  letter-spacing: -0.02em;
}

.terms-rule {
  display: flex; gap: 20px; margin-bottom: 24px;
  padding: 20px 24px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: 10px;
}
.terms-rule-num {
  font-family: var(--mono); font-size: 0.7rem;
  color: var(--accent); background: rgba(59,240,160,0.08);
  padding: 4px 10px; border-radius: 4px; height: fit-content;
  letter-spacing: 0.05em; white-space: nowrap;
}
.terms-rule h4 { font-size: 0.95rem; margin-bottom: 8px; font-weight: 600; }
.terms-rule p { color: var(--text-dim); font-size: 0.85rem; line-height: 1.7; margin: 0; }

.terms-legal h3 {
  font-size: 0.95rem; font-weight: 600; margin: 32px 0 12px;
  padding-left: 12px; border-left: 3px solid var(--accent);
}
.terms-legal p {
  color: var(--text-dim); font-size: 0.85rem; line-height: 1.8;
  margin-bottom: 12px;
}
.terms-legal ul {
  color: var(--text-dim); font-size: 0.85rem; line-height: 2;
  margin: 8px 0 16px 24px;
}

.terms-punish-table thead th {
  background: var(--bg-up);
}

.terms-footer-note {
  text-align: center; padding: 48px 0; border-top: 1px solid var(--border);
}
.terms-footer-note p { color: var(--text-dim); font-size: 0.85rem; line-height: 1.8; }
.terms-date {
  font-family: var(--mono); font-size: 0.7rem !important;
  color: var(--text-dim); opacity: 0.6; margin-top: 8px;
}

/* ===========================
   RESPONSIVE (additional)
   =========================== */
@media (max-width: 768px) {
  .nav-right { gap: 12px; }
  .nav-link { font-size: 0.75rem !important; }
  .status-grid { grid-template-columns: repeat(2, 1fr); }
  .status-info { grid-template-columns: 1fr; }
  .help-skills-grid { grid-template-columns: repeat(3, 1fr); }
  .help-landmarks { grid-template-columns: 1fr; }
  .terms-rule { flex-direction: column; gap: 8px; }
  .footer-links { gap: 10px; }
}
@media (max-width: 480px) {
  .status-grid { grid-template-columns: 1fr; }
  .help-skills-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-right { gap: 8px; overflow-x: auto; flex-wrap: nowrap; }
}