/* Camsilo Chat design (from your provided index.html) + compatibility for existing PHP pages */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
  transition: background 0.2s ease, color 0.2s ease;
}

:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --text-muted: #475569;
  --border: #e2e8f0;
  --primary: #7c3aed;
  --primary-dark: #6d28d9;
  --danger: #ef4444;
  --success: #10b981;
  --warning: #f59e0b;
  --card-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

body.dark {
  --bg: #0f172a;
  --surface: #1e293b;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --border: #334155;
  --primary: #a78bfa;
  --primary-dark: #8b5cf6;
  --card-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

body {
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

a { color: inherit; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

main { margin-bottom: 70px; }
@media (min-width: 768px) { main { margin-bottom: 0; } }

button, .btn {
  cursor: pointer;
  background: var(--primary);
  border: none;
  padding: 8px 16px;
  border-radius: 40px;
  color: white;
  font-weight: 500;
  transition: 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

button:hover, .btn:hover { background: var(--primary-dark); }

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: color-mix(in oklab, var(--primary) 10%, transparent);
}

.btn-danger { background: var(--danger); }
.btn-danger:hover { background: color-mix(in oklab, var(--danger) 80%, black 20%); }

input, select, textarea,
.input, .select, .textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 10px 14px;
  border-radius: 24px;
  color: var(--text);
  font-size: 14px;
  outline: none;
}

.input, .select, .textarea { width: 100%; }
textarea, .textarea { width: 100%; border-radius: 20px; min-height: 110px; resize: vertical; }

.card,
.post-card,
.post {
  background: var(--surface);
  border-radius: 24px;
  padding: 20px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border);
}

.post-card, .post { border-radius: 20px; padding: 16px; }

.flex, .row {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.grid { display: grid; gap: 20px; }
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 700px) { .grid-2 { grid-template-columns: 1fr; } }

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.badge, .pill {
  background: var(--primary);
  padding: 4px 10px;
  border-radius: 50px;
  font-size: 12px;
  color: white;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.muted { color: var(--text-muted); }
.label { display: block; margin: 12px 0 6px; color: var(--text-muted); font-size: 13px; }

.meta {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: var(--text-muted);
  font-size: 12px;
}

.reactions { display: flex; gap: 16px; margin-top: 12px; flex-wrap: wrap; }
.reaction-btn {
  background: transparent;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 16px;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.reaction-btn:hover { background: color-mix(in oklab, var(--primary) 10%, transparent); }
.reaction-btn.active { color: var(--text); border-color: color-mix(in oklab, var(--primary) 35%, var(--border)); }

.chat-messages, .chatlog {
  height: 400px;
  overflow-y: auto;
  background: var(--bg);
  border-radius: 20px;
  padding: 12px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
}

.message, .msg .bubble {
  margin-bottom: 12px;
  padding: 8px 12px;
  background: var(--surface);
  border-radius: 18px;
  max-width: 80%;
  word-break: break-word;
  border: 1px solid var(--border);
}

.msg { display:flex; margin-bottom: 12px; }
.msg.me { justify-content: flex-end; }
.msg.me .bubble {
  background: var(--primary);
  color: white;
  border-color: color-mix(in oklab, var(--primary) 60%, var(--border));
}

.online-count {
  font-size: 13px;
  background: var(--success);
  padding: 4px 10px;
  border-radius: 30px;
  color: white;
}

.warning-screen { text-align: center; padding: 40px; }

.bottom-nav, .bottomnav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--surface);
  display: flex;
  justify-content: space-around;
  padding: 10px 0;
  border-top: 1px solid var(--border);
  z-index: 100;
}

.nav-item, .bottomnav a {
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
  flex: 1;
  text-decoration: none;
}
.nav-item i, .bottomnav a i { font-size: 24px; display:block; margin-bottom: 2px; }
.active-nav, .bottomnav a.active { color: var(--primary); }

@media (min-width: 768px) { .bottom-nav, .bottomnav { display: none; } }
@media (max-width: 767px) { .desktop-nav { display: none; } }

.modal {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.modal-content {
  background: var(--surface);
  max-width: 400px;
  width: 90%;
  border-radius: 32px;
  padding: 24px;
}
.hide { display:none; }

img { max-width: 100%; border-radius: 12px; }

/* Compatibility helpers (existing admin/user pages) */
.alert {
  padding: 12px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--primary) 6%, var(--surface));
}
.alert-danger {
  border-color: color-mix(in oklab, var(--danger) 40%, var(--border));
  background: color-mix(in oklab, var(--danger) 10%, var(--surface));
}
.alert-ok {
  border-color: color-mix(in oklab, var(--success) 40%, var(--border));
  background: color-mix(in oklab, var(--success) 10%, var(--surface));
}
.kpi {
  display:flex;
  justify-content:space-between;
  align-items: baseline;
  padding: 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--primary) 5%, var(--surface));
}
.kpi b { font-size: 18px; }
.nav { display:flex; gap:12px; flex-wrap:wrap; }
.nav a {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: 40px;
  text-decoration:none;
}
.nav a.active { color: var(--primary); border-color: color-mix(in oklab, var(--primary) 45%, var(--border)); }