/* =============================================
   TEMA CLARO (default)
   ============================================= */
:root {
  --bg-base: #F5F3FF;
  --bg-surface: #FFFFFF;
  --bg-sidebar: #FFFFFF;
  --bg-elevated: #F0EDFF;
  --bg-muted: #EDE9FE;
  --bg-highlight: #E4DFFE;
  --border-subtle: #DDD6FE;
  --border-active: #7C5CFC;
  --text-primary: #1E1B2E;
  --text-secondary: #4A4562;
  --text-muted: #7C7594;
  --brand: #7C5CFC;
  --brand-light: #6D4AE8;
  --brand-bg: rgba(124,92,252,0.08);
  --brand-border: rgba(124,92,252,0.25);
  --ok: #16A34A;
  --ok-bg: rgba(22,163,74,0.08);
  --warn: #CA8A04;
  --warn-bg: rgba(202,138,4,0.08);
  --error: #E11D48;
  --error-bg: rgba(225,29,72,0.08);
  --info: #0891B2;
  --info-bg: rgba(8,145,178,0.08);
  --data: #7C5CFC;
  --shadow: rgba(124,92,252,0.06);
  --sidebar-active-text: #7C5CFC;
}

/* =============================================
   TEMA OSCURO
   ============================================= */
[data-theme="dark"] {
  --bg-base: #13111C;
  --bg-surface: #1A1726;
  --bg-sidebar: #16132A;
  --bg-elevated: #211D35;
  --bg-muted: #2A2545;
  --bg-highlight: #322D52;
  --border-subtle: #2E2950;
  --border-active: #7C5CFC;
  --text-primary: #FFFFFF;
  --text-secondary: #D0CDE0;
  --text-muted: #A8A3C0;
  --brand: #7C5CFC;
  --brand-light: #9B7EFF;
  --brand-bg: rgba(124,92,252,0.12);
  --brand-border: rgba(124,92,252,0.3);
  --ok: #4ADE80;
  --ok-bg: rgba(74,222,128,0.1);
  --warn: #FBBF24;
  --warn-bg: rgba(251,191,36,0.1);
  --error: #FB7185;
  --error-bg: rgba(251,113,133,0.1);
  --info: #67E8F9;
  --info-bg: rgba(103,232,249,0.1);
  --data: #A78BFA;
  --shadow: rgba(0,0,0,0.3);
  --sidebar-active-text: #FFFFFF;
}

/* =============================================
   BASE STYLES
   ============================================= */
body {
  background: var(--bg-base);
  color: var(--text-primary);
  transition: background 0.3s, color 0.3s;
}

/* Cards */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  box-shadow: 0 1px 3px var(--shadow);
  transition: all 0.3s;
}
.card:hover { border-color: var(--brand-border); }

/* Sidebar */
.sidebar {
  background: var(--bg-sidebar);
  transition: background 0.3s;
}
.sidebar-link {
  color: var(--text-secondary);
  transition: all 0.15s;
}
.sidebar-link:hover {
  background: var(--bg-muted);
  color: var(--text-primary);
}
.sidebar-link.active {
  background: var(--brand-bg);
  border-left: 2px solid var(--brand);
  color: var(--sidebar-active-text);
}

/* Inputs */
input, select, textarea {
  background: var(--bg-elevated) !important;
  border: 1px solid var(--border-subtle) !important;
  color: var(--text-primary) !important;
  transition: all 0.2s;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--brand) !important;
  box-shadow: 0 0 0 3px rgba(124,92,252,0.2) !important;
  outline: none !important;
}
input::placeholder { color: var(--text-muted) !important; }

/* Tables */
.tbl-header { background: var(--bg-elevated); }
.tbl-row:hover { background: var(--bg-muted); }

/* Buttons */
.btn-primary {
  background: linear-gradient(135deg, #6D4AE8, #7C5CFC, #9B7EFF);
  color: #fff;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-primary:hover {
  box-shadow: 0 4px 15px rgba(124,92,252,0.35);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--brand);
  color: var(--brand);
  cursor: pointer;
  transition: all 0.2s;
}
.btn-outline:hover {
  background: var(--brand-bg);
}

/* Badges */
.badge-ok { background: var(--ok-bg); color: var(--ok); border: 1px solid transparent; }
.badge-warn { background: var(--warn-bg); color: var(--warn); border: 1px solid transparent; }
.badge-error { background: var(--error-bg); color: var(--error); border: 1px solid transparent; }
.badge-info { background: var(--info-bg); color: var(--info); border: 1px solid transparent; }

/* Stat icon backgrounds */
.stat-icon-brand { background: var(--brand-bg); color: var(--brand); }
.stat-icon-ok { background: var(--ok-bg); color: var(--ok); }
.stat-icon-error { background: var(--error-bg); color: var(--error); }
.stat-icon-info { background: var(--info-bg); color: var(--info); }

/* Scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--border-subtle); border-radius: 3px; }

/* Animations */
@keyframes pulse-dot { 0%,100%{opacity:1} 50%{opacity:0.4} }
.pulse-dot { animation: pulse-dot 2s ease-in-out infinite; }

/* Theme toggle button */
.theme-toggle {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
}
.theme-toggle:hover {
  border-color: var(--brand);
  color: var(--brand);
}