:root {
  --bg: #0b0d12;
  --card: #141821;
  --border: #262c38;
  --text: #eef1f6;
  --muted: #8b93a3;
  --accent: #2fbf85;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

.shell {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0;
}

.login-shell {
  width: min(380px, calc(100% - 32px));
  margin: 12vh auto 0;
}

h1 { font-size: 26px; margin: 0 0 4px; }
p.muted { color: var(--muted); margin: 0 0 28px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px;
}

label { display: block; font-size: 13px; color: var(--muted); margin: 14px 0 6px; }
input {
  width: 100%;
  padding: 10px 12px;
  background: #0f1319;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
}

.btn {
  display: inline-block;
  margin-top: 20px;
  width: 100%;
  padding: 11px 16px;
  background: var(--accent);
  color: #06110c;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
}

.error {
  background: #2a1414;
  border: 1px solid #5b2323;
  color: #ff9a9a;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 6px;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
}

.top form { margin: 0; }
.top button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.tile {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-top: 3px solid var(--tile-color, var(--accent));
  border-radius: 12px;
  padding: 22px;
  text-decoration: none;
  color: var(--text);
  transition: transform .12s ease, border-color .12s ease;
}
.tile:hover { transform: translateY(-2px); border-color: #3a4152; }
.tile-name { font-size: 18px; font-weight: 700; margin: 0 0 6px; }
.tile-desc { font-size: 13px; color: var(--muted); margin: 0; }
.tile-arrow { float: right; color: var(--muted); }

.empty {
  color: var(--muted);
  font-size: 14px;
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
}