:root{--brand:#21a1b3;--bg:#0b1115;--card:#121a21;--text:#e6f0f2}
html,body{height:100%}
body{background:#f7fbfc}
.dark body{background:var(--bg);color:var(--text)}
.card{border-radius:1rem;box-shadow:0 10px 20px rgba(0,0,0,.06)}
.btn-brand{background:var(--brand);border-color:var(--brand)}
.brand{color:var(--brand)}
.minh-60{min-height:60vh}

.btn-brand { background: #1f9aa2; color: #fff; border: none; }
.btn-brand:hover { opacity: .9; }
.table tr { vertical-align: middle; }
.card-ghost { border: 1px solid #eef2f4; border-radius: 16px; }
.badge { font-weight: 500; }