:root {
  --bg: #0f0c11;
  --bg-panel: #191319;
  --bg-card: #201a22;
  --bg-card-hover: #2a2130;
  --border: #3a2c30;
  --text: #e8e2e6;
  --text-dim: #a89aa2;
  --accent: #8b1e2b;
  --accent-bright: #c62d3f;
  --gold: #e0c674;
  --green: #4caf7d;
  --danger: #c62d3f;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(ellipse at top, #1c1420 0%, var(--bg) 60%);
  color: var(--text);
  font-family: "Segoe UI", Tahoma, Verdana, sans-serif;
  min-height: 100vh;
}

a { color: var(--gold); }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: linear-gradient(180deg, #1a1216, #120d10);
  border-bottom: 2px solid var(--accent);
}

.brand { display: flex; align-items: baseline; gap: 10px; }
.brand-icon { font-size: 22px; color: var(--accent-bright); }
.brand-title { font-weight: 800; letter-spacing: 2px; font-size: 18px; color: var(--gold); }
.brand-sub { color: var(--text-dim); font-size: 13px; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent-bright);
  padding: 9px 16px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  text-decoration: none;
  transition: background .15s ease;
}
.btn:hover { background: var(--accent-bright); }
.btn-primary { background: var(--accent); }
.btn-small { padding: 6px 12px; font-size: 12px; }
.btn-danger { background: transparent; border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn[disabled] { opacity: .5; cursor: default; pointer-events: none; }

.auth-area { display: flex; align-items: center; gap: 14px; }
.steam-id { color: var(--text-dim); font-size: 13px; }

.banner { padding: 10px 24px; text-align: center; font-size: 14px; }
.banner-error { background: #3a1418; color: #ffb3b8; }

.layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 24px;
  padding: 24px 28px;
  max-width: 1200px;
  margin: 0 auto;
  align-items: start;
}

.sidebar {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: 16px;
}

.essence-card { text-align: center; padding: 10px 0; border-bottom: 1px solid var(--border); }
.essence-label { color: var(--text-dim); font-size: 12px; text-transform: uppercase; letter-spacing: 1px; }
.essence-value { font-size: 28px; font-weight: 800; color: var(--gold); }

.season-card { border-bottom: 1px solid var(--border); padding-bottom: 14px; display: flex; flex-direction: column; gap: 8px; }
.season-head { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--text-dim); }
.season-level { font-size: 14px; }
.season-xp { font-size: 12px; color: var(--text-dim); }
.season-prestige { font-size: 12px; color: var(--gold); }

.pill {
  background: #2a222a;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2px 10px;
  font-size: 11px;
}
.pill.premium { color: var(--gold); border-color: var(--gold); }

.progress-bar { height: 8px; background: #100c10; border-radius: 4px; overflow: hidden; border: 1px solid var(--border); }
.progress-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--gold)); width: 0%; transition: width .3s ease; }

.tabs { display: flex; flex-direction: column; gap: 4px; }
.tab-btn {
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-dim);
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}
.tab-btn:hover { background: var(--bg-card); color: var(--text); }
.tab-btn.active { background: var(--bg-card-hover); color: var(--gold); border-color: var(--border); }

.content-tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.content-tab {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 8px 18px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 13px;
}
.content-tab.active { background: var(--accent); color: #fff; border-color: var(--accent-bright); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color .15s ease, transform .1s ease;
}
.card:hover { border-color: var(--accent-bright); }

.card-swatch {
  height: 64px;
  border-radius: 6px;
  background: linear-gradient(135deg, #2a222a, #191319);
  border: 1px solid var(--border);
}

.card-name { font-weight: 700; font-size: 14px; }
.card-desc { color: var(--text-dim); font-size: 12px; min-height: 32px; }
.card-price { display: flex; justify-content: space-between; align-items: center; font-size: 13px; margin-top: auto; }
.price-tag { color: var(--gold); font-weight: 700; }
.price-alt { color: var(--text-dim); font-size: 11px; }

.owned-badge { color: var(--green); font-size: 12px; font-weight: 700; }

.login-hint {
  color: var(--text-dim);
  font-size: 13px;
  margin-top: 24px;
  text-align: center;
  border-top: 1px dashed var(--border);
  padding-top: 14px;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: #201a22;
  border: 1px solid var(--gold);
  color: var(--text);
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(0,0,0,.5);
}

.footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 12px;
  padding: 20px;
  border-top: 1px solid var(--border);
}

@media (max-width: 800px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}