:root{
  --bg:#0b1020;
  --card:#121a33;
  --card-2:#172445;
  --ink:#e9f0ff;
  --muted:#c4d1ff;
  --brand:#6be3ff;
  --brand-2:#a0ffa6;
  --brand-3:#ffd479;
  --accent-a: linear-gradient(135deg, #182a68 0%, #2a4ab0 100%);
  --accent-b: linear-gradient(135deg, #1b4f3b 0%, #2f8f77 100%);
  --accent-c: linear-gradient(135deg, #5a1b5a 0%, #a03ba0 100%);
  --accent-d: linear-gradient(135deg, #5a1b26 0%, #b03a5a 100%);
  --accent-e: linear-gradient(135deg, #3b2a0f 0%, #8f6b2a 100%);
  --accent-f: linear-gradient(135deg, #1b3b5a 0%, #3a7ab0 100%);
  --ring: 0 0 0 3px rgba(107,227,255,.25);
  --radius: 16px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: radial-gradient(1200px 800px at 10% -10%, rgba(107,227,255,.15), transparent 60%),
              radial-gradient(800px 600px at 100% 10%, rgba(160,255,166,.12), transparent 60%),
              var(--bg);
  color: var(--ink);
  line-height:1.55;
}

.container{max-width:1200px;margin-inline:auto;padding:24px}

.site-header{
  position:sticky; top:0; z-index:1000;
  backdrop-filter: blur(8px);
  background: rgba(11,16,32,.7);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.header-inner{display:flex; align-items:center; justify-content:space-between; gap:16px}
.brand{display:flex; align-items:center; gap:12px; color:var(--ink)}
.brand-logo{height:48px; width:auto; filter: drop-shadow(0 4px 20px rgba(107,227,255,.35));}
.brand-title{font-weight:800; letter-spacing:.3px}
.brand-sub{font-size:.9rem; color:var(--muted)}

.topnav{display:flex; align-items:center; gap:10px}
.nav-toggle{display:none; background:transparent; border:1px solid rgba(255,255,255,.2); color:var(--ink); padding:8px 10px; border-radius:10px}
.nav-menu{display:flex; list-style:none; gap:10px; margin:0; padding:0}
.nav-menu a{display:block; padding:10px 12px; border-radius:10px; color:var(--ink)}
.nav-menu a:hover{background:rgba(255,255,255,.06)}

@media (max-width: 900px){
  .nav-toggle{display:block}
  .nav-menu{display:none; flex-direction:column; position:absolute; top:64px; right:16px; background:#0d1430; padding:10px; border:1px solid rgba(255,255,255,.1); border-radius:12px}
  .nav-menu.show{display:flex}
}

.hero-card{
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.08);
  border-radius: var(--radius);
  padding:24px;
  box-shadow: 0 20px 60px rgba(0,0,0,.35), 0 0 0 1px rgba(255,255,255,.02) inset;
}

.meta{color:var(--muted)}
.badge{
  display:inline-block;
  padding:4px 10px;
  border:1px solid rgba(255,255,255,.15);
  border-radius:999px;
  font-size:.8rem;
  background:rgba(255,255,255,.04);
  margin:2px 4px;
}

.filters{display:flex; align-items:center; gap:12px; margin-top:12px; flex-wrap:wrap}
.filter-group{display:flex; flex-wrap:wrap; gap:8px}
.chip{padding:8px 12px; border-radius:999px; border:1px solid rgba(255,255,255,.2); background:rgba(255,255,255,.06); color:var(--ink); cursor:pointer}
.chip.active{outline:var(--ring); box-shadow: var(--ring)}

.months-grid{display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap:20px; margin-top:24px}
@media (max-width: 960px){ .months-grid{grid-template-columns:1fr} }

.month-card{
  border-radius: var(--radius);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.09);
  background: var(--card);
  transition: transform .2s ease, box-shadow .2s ease;
}
.month-card:hover{transform: translateY(-3px); box-shadow: 0 20px 50px rgba(0,0,0,.45)}

.month-header{
  padding:18px 20px 12px;
  background: var(--card-2);
}
.month-card.accent-a .month-header{ background: var(--accent-a) }
.month-card.accent-b .month-header{ background: var(--accent-b) }
.month-card.accent-c .month-header{ background: var(--accent-c) }
.month-card.accent-d .month-header{ background: var(--accent-d) }
.month-card.accent-e .month-header{ background: var(--accent-e) }
.month-card.accent-f .month-header{ background: var(--accent-f) }

.month-label{font-weight:800; letter-spacing:.5px; opacity:.95}
.month-title{margin:6px 0 4px; font-size:1.4rem}
.cover-focus{margin:0; color:#fff; opacity:.95}
.regions{margin-top:10px}
.month-details{padding:18px 20px 20px; background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01))}
.summary{cursor:pointer; padding:10px 0; font-weight:700}
.nice-list{margin:8px 0 0 18px}
.nice-list li{margin:6px 0}
.supplement{margin-top:12px; color:var(--muted)}

.cta-card{
  margin-top:28px; text-align:center;
  padding:28px; background: linear-gradient(135deg, rgba(107,227,255,.12), rgba(160,255,166,.12));
  border:1px solid rgba(255,255,255,.15); border-radius: var(--radius);
}
.button{
  display:inline-block; padding:12px 18px; border-radius:12px; border:1px solid rgba(255,255,255,.2);
  text-decoration:none; color:var(--ink); margin-top:10px
}
.button.primary{ background: linear-gradient(135deg, #6be3ff, #a0ffa6); color:#06101b; font-weight:800}

.site-footer{border-top:1px solid rgba(255,255,255,.08); margin-top:40px; background: rgba(0,0,0,.15)}
.footer-inner{display:flex; align-items:center; justify-content:space-between; gap:12px}
.small{opacity:.8; font-size:.9rem}

.back-to-top{
  position:fixed; right:16px; bottom:16px; border:none; border-radius:999px; width:48px; height:48px;
  background: linear-gradient(135deg, #6be3ff, #ffd479); color:#08121e; font-size:20px; font-weight:900;
  box-shadow: 0 10px 30px rgba(0,0,0,.35); cursor:pointer; display:none;
}
.back-to-top.show{display:block}