:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #16213e;
  --accent-blue: #00d4ff;
  --accent-purple: #7c3aed;
  --glass-border: rgba(0, 212, 255, 0.15);
  --glass-bg: rgba(255, 255, 255, 0.06);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.5);
  --text-muted: rgba(255, 255, 255, 0.3);
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

body {
  font-family: var(--font-stack);
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-tertiary) 100%);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ===== ZACH Watermarks ===== */
.zach-watermark { position: fixed; pointer-events: none; user-select: none; font-weight: 900; white-space: nowrap; z-index: 0; }
.zach-watermark--main { top: 50%; left: 50%; transform: translate(-50%, -50%); font-size: 220px; color: rgba(255,255,255,0.03); letter-spacing: 30px; }
.zach-watermark--top { top: 18%; left: 8%; font-size: 80px; color: rgba(0,212,255,0.04); letter-spacing: 15px; transform: rotate(-8deg); }
.zach-watermark--bottom { bottom: 12%; right: 5%; font-size: 100px; color: rgba(124,58,237,0.04); letter-spacing: 10px; transform: rotate(5deg); }

/* ===== Particles ===== */
.particle { position: fixed; border-radius: 50%; pointer-events: none; z-index: 0; }
.particle--blue { background: var(--accent-blue); box-shadow: 0 0 10px var(--accent-blue); }
.particle--purple { background: var(--accent-purple); box-shadow: 0 0 8px var(--accent-purple); }

/* ===== Navigation ===== */
.nav { display: flex; justify-content: space-between; align-items: center; padding: 18px 32px; position: relative; z-index: 10; }
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.nav-logo-icon { width: 30px; height: 30px; background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple)); border-radius: 7px; }
.nav-logo-text { color: var(--text-primary); font-weight: 700; font-size: 16px; }
.nav-links { display: flex; gap: 20px; align-items: center; }
.nav-link { color: var(--text-secondary); font-size: 14px; text-decoration: none; transition: color 0.2s; }
.nav-link:hover { color: var(--text-primary); }

/* ===== Buttons ===== */
.btn { display: inline-block; padding: 7px 18px; font-size: 13px; border-radius: 7px; border: none; cursor: pointer; font-family: var(--font-stack); text-decoration: none; transition: all 0.2s; }
.btn-primary { background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple)); color: #fff; }
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-outline { background: var(--glass-bg); border: 1px solid rgba(255,255,255,0.15); color: #fff; }
.btn-outline:hover { border-color: var(--accent-blue); }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-danger { background: #dc2626; color: #fff; }

/* ===== Hero ===== */
.hero { text-align: center; padding: 60px 32px 30px; position: relative; z-index: 1; }
.hero-subtitle { font-size: 13px; letter-spacing: 6px; color: var(--accent-blue); opacity: 0.7; text-transform: uppercase; margin-bottom: 10px; }
.hero-title { font-size: 48px; font-weight: 800; letter-spacing: 2px; line-height: 1.2; }
.hero-divider { width: 60px; height: 2px; background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple)); margin: 16px auto; }
.hero-desc { font-size: 15px; color: var(--text-secondary); max-width: 400px; margin: 0 auto; line-height: 1.6; }

/* ===== Cards ===== */
.cards { display: flex; gap: 18px; padding: 24px 32px; position: relative; z-index: 1; justify-content: center; flex-wrap: wrap; }
.card { flex: 0 0 230px; background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: 14px; padding: 22px; backdrop-filter: blur(10px); transition: all 0.3s; cursor: pointer; text-decoration: none; color: var(--text-primary); }
.card:hover { transform: translateY(-4px); border-color: var(--accent-blue); box-shadow: 0 8px 30px rgba(0,212,255,0.1); }
.card--disabled { opacity: 0.45; cursor: default; }
.card--disabled:hover { transform: none; border-color: var(--glass-border); box-shadow: none; }
.card-icon { font-size: 30px; margin-bottom: 12px; }
.card-title { font-size: 16px; font-weight: 600; margin-bottom: 5px; }
.card-desc { font-size: 12px; color: var(--text-secondary); line-height: 1.5; margin-bottom: 16px; }
.card-btn { display: block; text-align: center; padding: 7px 0; border-radius: 8px; font-size: 12px; }
.card-btn--active { background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple)); color: #fff; }
.card-btn--disabled { background: rgba(255,255,255,0.06); color: var(--text-muted); }

/* ===== Token Bar ===== */
.token-bar { margin: 24px 32px; padding: 12px 18px; background: rgba(0,212,255,0.06); border: 1px solid rgba(0,212,255,0.1); border-radius: 10px; display: flex; justify-content: space-between; align-items: center; position: relative; z-index: 1; }
.token-bar-dot { width: 8px; height: 8px; background: var(--accent-blue); border-radius: 50%; box-shadow: 0 0 6px var(--accent-blue); display: inline-block; margin-right: 8px; }
.token-bar-text { color: var(--text-secondary); font-size: 13px; }
.token-bar-link { color: var(--accent-blue); font-size: 13px; text-decoration: none; }

/* ===== Forms ===== */
.form-container { max-width: 400px; margin: 60px auto; padding: 32px; background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: 16px; backdrop-filter: blur(10px); position: relative; z-index: 1; }
.form-title { font-size: 24px; font-weight: 700; text-align: center; margin-bottom: 24px; }
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 6px; }
.form-input { width: 100%; padding: 10px 14px; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.12); border-radius: 8px; color: var(--text-primary); font-size: 14px; font-family: var(--font-stack); outline: none; transition: border-color 0.2s; }
.form-input:focus { border-color: var(--accent-blue); }
.form-input::placeholder { color: var(--text-muted); }
.form-hint { font-size: 11px; color: var(--text-muted); margin-top: 4px; }
.form-error { color: #ef4444; font-size: 13px; text-align: center; margin-bottom: 14px; display: none; }
.form-submit { width: 100%; padding: 11px; font-size: 15px; margin-top: 6px; }
.form-footer { text-align: center; margin-top: 18px; font-size: 13px; color: var(--text-secondary); }
.form-footer a { color: var(--accent-blue); text-decoration: none; }

/* ===== Profile ===== */
.profile-container { max-width: 600px; margin: 40px auto; padding: 0 32px; position: relative; z-index: 1; }
.profile-section { background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: 14px; padding: 24px; margin-bottom: 20px; }
.profile-section h3 { font-size: 16px; margin-bottom: 16px; }
.profile-row { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.06); }
.profile-row:last-child { border-bottom: none; }
.profile-label { font-size: 13px; color: var(--text-secondary); }
.profile-value { font-size: 14px; }
.token-stat { text-align: center; padding: 12px; }
.token-stat-value { font-size: 28px; font-weight: 700; color: var(--accent-blue); }
.token-stat-label { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }

/* ===== Admin ===== */
.admin-container { max-width: 1000px; margin: 30px auto; padding: 0 32px; position: relative; z-index: 1; }
.admin-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.admin-search { display: flex; gap: 10px; }
.admin-search input { width: 260px; }
.admin-table { width: 100%; border-collapse: collapse; background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: 12px; overflow: hidden; }
.admin-table th { padding: 12px 14px; text-align: left; font-size: 12px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.admin-table td { padding: 12px 14px; font-size: 13px; border-bottom: 1px solid rgba(255,255,255,0.04); }
.admin-table tr:hover td { background: rgba(255,255,255,0.03); }
.admin-pagination { display: flex; justify-content: center; gap: 8px; margin-top: 20px; }

/* ===== Modal ===== */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: none; align-items: center; justify-content: center; z-index: 100; }
.modal-overlay.active { display: flex; }
.modal { background: var(--bg-secondary); border: 1px solid var(--glass-border); border-radius: 14px; padding: 28px; min-width: 340px; }
.modal h3 { margin-bottom: 16px; }

/* ===== Responsive ===== */
/* ===== Footer ===== */
.site-footer { text-align: center; padding: 30px 20px 20px; position: relative; z-index: 1; margin-top: 40px; border-top: 1px solid rgba(255,255,255,0.06); }
.site-footer-text { font-size: 12px; color: var(--text-muted); }
.site-footer a { color: var(--accent-blue); text-decoration: none; }

/* ===== Hot News Section ===== */
.news-section {
  max-width: 750px;
  margin: 30px auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}
.news-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.news-title { font-size: 20px; font-weight: 700; }
.news-update { font-size: 12px; color: var(--text-muted); }
.news-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  overflow-x: auto;
  padding-bottom: 4px;
}
.news-tab {
  padding: 6px 14px;
  font-size: 13px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.1);
  background: var(--glass-bg);
  color: var(--text-secondary);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
  backdrop-filter: blur(6px);
}
.news-tab:hover {
  border-color: var(--accent-blue);
  color: var(--text-primary);
}
.news-tab--active {
  background: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(124,58,237,0.15));
  border-color: var(--accent-blue);
  color: var(--text-primary);
}
.news-content {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 16px 20px;
  backdrop-filter: blur(10px);
  min-height: 200px;
}
.news-loading {
  text-align: center;
  color: var(--text-muted);
  padding: 40px 0;
  font-size: 14px;
}
.news-list { list-style: none; }
.news-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.news-item:last-child { border-bottom: none; }
.news-rank {
  flex-shrink: 0;
  width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 600;
  color: var(--text-muted);
  background: rgba(255,255,255,0.04);
  border-radius: 6px;
}
.news-rank--top {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  color: #fff;
}
.news-link {
  flex: 1;
  font-size: 13px;
  color: var(--text-primary);
  text-decoration: none;
  line-height: 1.4;
  transition: color 0.2s;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.news-link:hover { color: var(--accent-blue); }
.news-hot {
  flex-shrink: 0;
  font-size: 11px;
  color: var(--text-muted);
  background: rgba(255,255,255,0.04);
  padding: 2px 8px;
  border-radius: 10px;
}
.news-item--error {
  justify-content: center;
  color: var(--text-muted);
  padding: 30px 0;
}

@media (max-width: 768px) {
  .cards { flex-direction: column; align-items: center; }
  .card { flex: 0 0 auto; width: 100%; max-width: 320px; }
  .hero-title { font-size: 32px; }
  .nav { padding: 14px 16px; }
  .nav-links { gap: 12px; }
  .admin-table { font-size: 12px; }
  .admin-table th, .admin-table td { padding: 8px 10px; }
  .news-section { padding: 0 16px; }
  .news-tabs { gap: 6px; }
  .news-tab { padding: 5px 10px; font-size: 12px; }
  .news-hot { display: none; }
}