/* Painel Indoor — novo sistema. Visual limpo, moderno, sem dependencia de CDN. */

:root {
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --bg: #f4f5fb;
  --card-bg: #ffffff;
  --text: #1f2333;
  --muted: #6b7280;
  --danger: #dc2626;
  --success: #16a34a;
  --warning: #d97706;
  --border: #e5e7eb;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 240px;
  background: #171a2b;
  color: #cfd2e4;
  flex-shrink: 0;
  padding: 20px 0;
}

.sidebar .brand {
  font-weight: 700;
  font-size: 18px;
  color: #fff;
  padding: 0 20px 20px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  margin-bottom: 10px;
}

.sidebar nav a {
  display: block;
  padding: 11px 20px;
  color: #cfd2e4;
  font-size: 14px;
}

.sidebar nav a:hover { background: rgba(255,255,255,.06); text-decoration: none; }
.sidebar nav a.ativo { background: var(--primary); color: #fff; }

.sidebar .categoria {
  padding: 16px 20px 6px;
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  opacity: .55;
}

.main {
  flex: 1;
  min-width: 0;
}

.topbar {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 14px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar h1 { font-size: 18px; margin: 0; }

.topbar .usuario { font-size: 13px; color: var(--muted); }

.content { padding: 28px; max-width: 1100px; }

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 2px 14px rgba(20,20,43,.05);
  padding: 22px;
  margin-bottom: 22px;
}

.card h2 { margin-top: 0; font-size: 16px; }

.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .app-shell { flex-direction: column; }
  .sidebar { width: 100%; }
}

.stat {
  text-align: center;
}
.stat .valor { font-size: 26px; font-weight: 700; }
.stat .label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }

.btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 10px;
  border: none;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.btn:hover { background: var(--primary-dark); text-decoration: none; color: #fff; }
.btn.secundario { background: #e5e7eb; color: var(--text); }
.btn.perigo { background: var(--danger); }
.btn.sucesso { background: var(--success); }

form.inline { display: inline; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); }
th { font-size: 12px; text-transform: uppercase; color: var(--muted); letter-spacing: .04em; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.on { background: #dcfce7; color: var(--success); }
.badge.off { background: #fee2e2; color: var(--danger); }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.form-group input, .form-group select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 14px;
}

.alert { padding: 12px 16px; border-radius: 10px; margin-bottom: 18px; font-size: 14px; }
.alert.sucesso { background: #dcfce7; color: #166534; }
.alert.erro { background: #fee2e2; color: #991b1b; }
.alert.aviso { background: #fef3c7; color: #92400e; }

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), #171a2b);
}
.login-box {
  background: #fff;
  padding: 36px;
  border-radius: 18px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 20px 60px rgba(0,0,0,.25);
}
.login-box h1 { font-size: 20px; margin-bottom: 4px; }
.login-box p.subtitulo { color: var(--muted); font-size: 13px; margin-top: 0; margin-bottom: 22px; }

.player-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #171a2b;
  color: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
.player-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  padding: 30px;
  border-radius: 18px;
  text-align: center;
  width: 100%;
  max-width: 420px;
}
.player-card audio { width: 100%; margin-top: 16px; }

.tabs { display: flex; gap: 6px; margin-bottom: 18px; flex-wrap: wrap; }
.tabs a {
  padding: 8px 14px;
  border-radius: 8px;
  background: #eef0fb;
  font-size: 13px;
  color: var(--text);
}
.tabs a.ativo { background: var(--primary); color: #fff; }

.empty-state { text-align: center; color: var(--muted); padding: 30px 0; }