:root {
    --primary: #6C63FF;
    --secondary: #3ECFB2;
    --danger: #FF6B6B;
    --warning: #FFD93D;
    --bg-color: #f4f7f6;
    --surface-color: #ffffff;
    --text-color: #333333;
    --text-muted: #888888;
    --border-color: #e0e0e0;
    --sidebar-width: 250px;
}

[data-theme="dark"] {
    --bg-color: #121212;
    --surface-color: #1e1e1e;
    --text-color: #ffffff;
    --text-muted: #aaaaaa;
    --border-color: #333333;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Inter', 'Noto Sans Tamil', sans-serif; background-color: var(--bg-color); color: var(--text-color); transition: background-color 0.3s, color 0.3s; zoom: 0.7; }

.app-container { display: flex; height: calc(100vh / 0.7); overflow: hidden; }

/* Sidebar */
.sidebar { width: var(--sidebar-width); background-color: var(--surface-color); border-right: 1px solid var(--border-color); display: flex; flex-direction: column; transition: transform 0.3s; }
.sidebar .logo { padding: 20px; font-size: 24px; font-weight: bold; color: var(--primary); display: flex; align-items: center; gap: 10px; border-bottom: 1px solid var(--border-color); }
.nav-links { flex: 1; padding: 20px 0; display: flex; flex-direction: column; gap: 10px; }
.nav-item { padding: 12px 20px; display: flex; align-items: center; gap: 15px; text-decoration: none; color: var(--text-color); font-weight: 500; transition: all 0.2s; border: none; background: none; width: 100%; text-align: left; cursor: pointer; font-size: 16px;}
.nav-item:hover, .nav-item.active { background-color: rgba(108, 99, 255, 0.1); color: var(--primary); border-right: 4px solid var(--primary); }
.sidebar-footer { padding: 20px; border-top: 1px solid var(--border-color); }

.lang-toggle { display: flex; gap: 10px; margin-top: 15px; }
.lang-toggle button { flex: 1; padding: 8px; border: 1px solid var(--border-color); background: var(--surface-color); color: var(--text-color); border-radius: 6px; cursor: pointer; transition: 0.2s; }
.lang-toggle button.active { background: var(--primary); color: white; border-color: var(--primary); }

/* Main Content */
.main-content { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.topbar { height: 60px; background-color: var(--surface-color); border-bottom: 1px solid var(--border-color); display: flex; align-items: center; justify-content: space-between; padding: 0 20px; }
.content-area { flex: 1; padding: 20px; overflow-y: auto; }

/* Components */
.page-title { margin-bottom: 20px; }
.animated-card { background: var(--surface-color); border-radius: 12px; padding: 20px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); transition: transform 0.3s, box-shadow 0.3s; border: 1px solid var(--border-color); }
.animated-card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.1); }

/* Dashboard Grid */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; margin-bottom: 20px; }
.kpi-card { display: flex; align-items: center; gap: 15px; }
.kpi-icon { width: 50px; height: 50px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 24px; }
.kpi-details h3 { font-size: 14px; color: var(--text-muted); margin-bottom: 5px; }
.kpi-value { font-size: 24px; font-weight: bold; }

.dashboard-widgets { display: grid; grid-template-columns: 2fr 1fr; gap: 20px; }
.widget-card h2 { font-size: 18px; margin-bottom: 15px; }

/* Responsive */
#mobile-menu-btn { display: none; background: none; border: none; font-size: 24px; color: var(--text-color); cursor: pointer; }
@media (max-width: 768px) {
    .sidebar { position: fixed; transform: translateX(-100%); z-index: 1000; height: 100%; }
    .sidebar.open { transform: translateX(0); }
    #mobile-menu-btn { display: block; }
    .dashboard-widgets { grid-template-columns: 1fr; }
}

.badge { padding: 4px 8px; border-radius: 4px; font-size: 12px; font-weight: bold; }
.badge.voice { background: #e0dfff; color: var(--primary); }
.badge.pos { background: #e0f8e3; color: var(--secondary); }
.recent-orders-list { list-style: none; }
.recent-orders-list li { padding: 10px 0; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center;}
.recent-orders-list li:last-child { border-bottom: none; }