:root {
  --bg: #050912;
  --panel: rgba(15, 23, 42, 0.74);
  --line: rgba(125, 211, 252, 0.18);
  --text: #eef6ff;
  --muted: #9fb0c7;
  --cyan: #38bdf8;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 12%, rgba(14, 165, 233, 0.18), transparent 32%),
    linear-gradient(135deg, #020617, #08111f 48%, #020617);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(148,163,184,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(148,163,184,.035) 1px, transparent 1px);
  background-size: 48px 48px;
}

.foro-header,
.foro-shell {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.foro-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 0;
}

.foro-brand { display: flex; align-items: center; gap: 14px; }
.foro-brand img { width: 54px; height: 54px; border-radius: 16px; border: 1px solid var(--line); }
.foro-brand h1 { margin: 0; font-size: 1.35rem; }
.foro-brand p { margin: 4px 0 0; color: var(--muted); }

button {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 11px 16px;
  color: var(--text);
  background: linear-gradient(135deg, rgba(37, 99, 235, .9), rgba(6, 182, 212, .85));
  cursor: pointer;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
button:hover { transform: translateY(-2px); box-shadow: 0 16px 45px rgba(8, 145, 178, .2); }

.foro-hero,
.foro-panel {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: 0 28px 90px rgba(2, 8, 23, .35);
  backdrop-filter: blur(18px);
}

.foro-hero { padding: 38px; margin-bottom: 22px; }
.foro-hero span, #foroSalaBadge { color: #7dd3fc; font-size: .76rem; letter-spacing: .16em; text-transform: uppercase; font-weight: 800; }
.foro-hero h2 { margin: 12px 0; font-size: clamp(2rem, 5vw, 4rem); }
.foro-hero p, .foro-panel p { color: var(--muted); line-height: 1.6; }

.foro-tabs { display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 18px; }
.foro-tab { background: rgba(15, 23, 42, .68); }
.foro-tab.activa { border-color: rgba(56,189,248,.7); background: rgba(8, 47, 73, .78); }

.foro-panel { padding: 26px; }
.foro-panel-header h2 { margin: 6px 0; }
.foro-form { display: grid; gap: 14px; margin: 18px 0 22px; }
.foro-form label { display: grid; gap: 6px; color: #cbd5e1; font-size: .88rem; }
.foro-form input, .foro-form textarea {
  width: 100%;
  border: 1px solid rgba(125,211,252,.18);
  border-radius: 16px;
  padding: 12px 14px;
  color: var(--text);
  background: rgba(15, 23, 42, .74);
  outline: none;
}
.foro-form textarea { min-height: 110px; resize: vertical; }
.foro-lista { display: grid; gap: 12px; }
.foro-mensaje {
  padding: 16px;
  border: 1px solid rgba(148, 163, 184, .14);
  border-radius: 18px;
  background: rgba(2, 6, 23, .34);
}
.foro-mensaje strong { display: block; margin-bottom: 4px; }
.foro-mensaje span { color: #7dd3fc; font-size: .78rem; }

@media (max-width: 720px) {
  .foro-header { align-items: flex-start; flex-direction: column; }
  .foro-hero, .foro-panel { padding: 22px; }
}