/* Control Dynamics – Shared Styles */
:root{
  --bg:#0b0f14;          /* page background */
  --panel:#121821;       /* card/nav background */
  --ink:#e7edf5;         /* primary text */
  --muted:#9fb0c4;       /* secondary text */
  --accent:#50aaed;      /* call-to-action / highlights (tune to match your brand) */
  --accent-ink:#0c1a11;
  --danger:#ff4d4d;
  --warn:#ffc847;
  --ok:#49d17d;
  --shadow:0 10px 24px rgba(0,0,0,.35);
  --radius:16px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,"Helvetica Neue",Arial,"Noto Sans",sans-serif}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
.container{max-width:1100px;margin:0 auto;padding:24px}
.header{
  background:linear-gradient(180deg,rgba(20,28,38,.85),rgba(18,24,33,.95));
  position:sticky;top:0;z-index:10;backdrop-filter:blur(6px);border-bottom:1px solid rgba(255,255,255,.06)
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:12px 24px}
.brand{font-weight:700;letter-spacing:.4px}
.brand a{color:var(--ink)}
.menu{display:flex;gap:18px;flex-wrap:wrap}
.menu a{padding:8px 10px;border-radius:10px}
.menu a.active,.menu a:hover{background:rgba(255,255,255,.06)}
.hero{padding:24px 24px;background:linear-gradient(180deg,rgba(24,34,48,.7),rgba(11,15,20,.0))}
.hero h1{margin:0 0 8px;font-size:clamp(28px,4.2vw,40px)}
.hero p{margin:0;color:var(--muted)}

.card{background:var(--panel);border:1px solid rgba(255,255,255,.06);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}
.grid{display:grid;gap:18px}
.grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:900px){.grid.cols-2,.grid.cols-3{grid-template-columns:1fr}}
.label{display:block;margin:12px 0 6px;color:var(--muted);font-weight:600}
.input,.select,textarea{
  width:100%;padding:12px 14px;border-radius:12px;border:1px solid rgba(255,255,255,.08);
  background:#0e141c;color:var(--ink);outline:none
}
textarea{min-height:140px;resize:vertical}
.input:focus,.select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(73,209,125,.18)}
.help{color:var(--muted);font-size:.95rem;margin-top:8px}
.row{display:flex;gap:14px;flex-wrap:wrap}
button,.btn{
  display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:var(--accent-ink);
  padding:12px 18px;border-radius:12px;border:none;font-weight:700;cursor:pointer
}
.btn.secondary{background:transparent;color:var(--ink);border:1px solid rgba(255,255,255,.14)}
.badge{display:inline-block;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.08);color:var(--muted);font-size:.85rem}

.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:12px;border-bottom:1px solid rgba(255,255,255,.06)}
.table th{color:var(--muted);font-weight:600;text-align:left}

.status{display:inline-flex;align-items:center;gap:8px}
.dot{width:10px;height:10px;border-radius:999px;display:inline-block}
.dot.ok{background:var(--ok)} .dot.warn{background:var(--warn)} .dot.danger{background:var(--danger)}

.footer{color:var(--muted);border-top:1px solid rgba(255,255,255,.06);padding:24px;margin-top:40px;text-align:center}

/* Form toasts */
.toast{display:none;margin-top:14px;padding:12px 14px;border-radius:12px}
.toast.show{display:block}
.toast.ok{background:rgba(73,209,125,.12);border:1px solid rgba(73,209,125,.35);color:#baf0cf}
.toast.err{background:rgba(255,77,77,.12);border:1px solid rgba(255,77,77,.35);color:#ffc9c9}

/* Course card styling */
.course{display:flex;flex-direction:column;gap:10px}
.course h3{margin:6px 0 2px}
.meta{color:var(--muted);font-size:.95rem}

.cd-news-banner {
  margin: 2rem 0 0 1rem;
  padding: 0.9rem 1rem;
  border-radius: 12px;
  border: 1px solid rgba(56, 189, 248, 0.6);
  background: rgba(15, 23, 42, 0.9);
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

.cd-news-label {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.12);
  color: #bbf7d0;
  border: 1px solid rgba(34, 197, 94, 0.5);
  flex-shrink: 0;
}

.cd-news-content {
  font-size: 0.9rem;
  color: #e5e7eb;
}

.cd-news-link {
  margin-left: 0.4rem;
  color: #7dd3fc;
  font-weight: 600;
  text-decoration: none;
}

.cd-news-link:hover {
  text-decoration: underline;
}