:root {
  --ignite-primary: #6C5CE7;
  --ignite-primary-dark: #4834D4;
  --ignite-accent: #00CEC9;
  --ignite-bg: #F4F6FB;
  --ignite-card-bg: rgba(255, 255, 255, 0.75);
  --ignite-text: #1E2140;
  --ignite-radius: 16px;
  --sidebar-width: 260px;
}

[data-theme="dark"] {
  --ignite-bg: #0F1226;
  --ignite-card-bg: rgba(30, 33, 64, 0.65);
  --ignite-text: #EDEFFB;
}

* { box-sizing: border-box; }

body {
  background: var(--ignite-bg);
  color: var(--ignite-text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  min-height: 100vh;
  transition: background .3s ease, color .3s ease;
}

.glass-card {
  background: var(--ignite-card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--ignite-radius);
  box-shadow: 0 8px 32px rgba(31, 38, 135, 0.08);
}

.app-sidebar {
  width: var(--sidebar-width);
  min-height: 100vh;
  position: fixed;
  top: 0; left: 0;
  background: linear-gradient(180deg, var(--ignite-primary-dark), var(--ignite-primary));
  color: #fff;
  padding: 24px 16px;
  z-index: 1030;
  transition: transform .3s ease;
}

.app-sidebar .brand { font-weight: 700; font-size: 1.25rem; margin-bottom: 28px; display:flex; align-items:center; gap:10px;}
.app-sidebar a.nav-link {
  color: rgba(255,255,255,0.85);
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 4px;
  display: flex; align-items: center; gap: 10px;
  font-size: .92rem;
}
.app-sidebar a.nav-link.active,
.app-sidebar a.nav-link:hover { background: rgba(255,255,255,0.15); color: #fff; }

.app-main { margin-left: var(--sidebar-width); padding: 24px; min-height: 100vh; }

.app-topbar {
  position: sticky; top: 0; z-index: 1020;
  padding: 14px 20px; margin-bottom: 20px;
  display: flex; align-items: center; justify-content: space-between;
}

.stat-card { padding: 20px; border-radius: var(--ignite-radius); }
.stat-card .stat-value { font-size: 1.8rem; font-weight: 700; }
.stat-card .stat-label { font-size: .8rem; opacity: .7; text-transform: uppercase; letter-spacing: .04em; }
.stat-icon {
  width: 46px; height: 46px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; color: #fff;
}

.fab {
  position: fixed; bottom: 28px; right: 28px; z-index: 1040;
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--ignite-primary); color: #fff; border: none;
  box-shadow: 0 10px 25px rgba(108,92,231,.4);
  display:flex; align-items:center; justify-content:center; font-size:1.4rem;
}

.bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 1035;
  display: none;
  background: var(--ignite-card-bg);
  backdrop-filter: blur(16px);
  border-top: 1px solid rgba(0,0,0,0.06);
  padding: 8px 0;
}
.bottom-nav a { flex:1; text-align:center; font-size:.7rem; color: var(--ignite-text); }
.bottom-nav a i { display:block; font-size:1.2rem; margin-bottom:2px; }

.login-page {
  min-height: 100vh; display:flex; align-items:center; justify-content:center;
  background: radial-gradient(circle at top left, #4834D4, #0F1226 70%);
}
.login-card { width: 100%; max-width: 420px; padding: 40px; }

.skeleton { background: linear-gradient(90deg,#e9ecf5 25%,#f4f6fb 37%,#e9ecf5 63%); background-size:400% 100%; animation: skeleton 1.4s ease infinite; border-radius:8px; }
@keyframes skeleton { 0%{background-position:100% 50%} 100%{background-position:0 50%} }

.empty-state { text-align:center; padding: 60px 20px; opacity:.7; }
.empty-state i { font-size: 3rem; margin-bottom: 12px; display:block; }

@media (max-width: 992px) {
  .app-sidebar { transform: translateX(-100%); }
  .app-sidebar.open { transform: translateX(0); }
  .app-main { margin-left: 0; padding-bottom: 80px; }
  .bottom-nav { display: flex; }
}