/* Variabile CSS pentru sistemul Light/Dark Mode */
:root {
    --bg-color: #f4f7f6;
    --text-color: #333333;
    --sidebar-bg: #2c3e50;
    --sidebar-text: #ecf0f1;
    --card-bg: #ffffff;
    --accent-color: #3498db;
    --border-color: #e0e0e0;
}

[data-theme="dark"] {
    --bg-color: #1a1a2e;
    --text-color: #e6e6e6;
    --sidebar-bg: #16213e;
    --sidebar-text: #ffffff;
    --card-bg: #0f3460;
    --accent-color: #e94560;
    --border-color: #2a2a4a;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    transition: background-color 0.3s, color 0.3s;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    padding: 20px 0;
}

.sidebar h2 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 22px;
    letter-spacing: 1px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 15px;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.nav-links li a {
    display: block;
    padding: 15px 25px;
    color: var(--sidebar-text);
    text-decoration: none;
    font-size: 16px;
    border-left: 4px solid transparent;
}

.nav-links li a:hover, .nav-links li a.active {
    background-color: rgba(255,255,255,0.05);
    border-left: 4px solid var(--accent-color);
}

/* Main Content Styling */
.main-content {
    flex: 1;
    padding: 30px;
    display: flex;
    flex-direction: column;
}

/* Topbar */
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.theme-switch {
    background-color: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 8px 15px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
    outline: none;
}

.theme-switch:hover {
    background-color: var(--accent-color);
    color: white;
}

/* Cards / Modules Placeholder */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.card {
    background-color: var(--card-bg);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
}

.card h3 {
    margin-bottom: 15px;
    color: var(--accent-color);
}

/* --- Tabel și Regula 2 (Semaforizare) --- */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
    font-size: 14px;
}
.data-table th, .data-table td {
    border: 1px solid var(--border-color);
    padding: 12px;
    text-align: center;
    vertical-align: middle;
}
.data-table th {
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--text-color);
}
[data-theme="dark"] .data-table th {
    background-color: rgba(255, 255, 255, 0.05);
}
.prod-img { width: 50px; height: 50px; object-fit: cover; border-radius: 4px; }
.text-left { text-align: left !important; }

/* Semafoare */
.semafor { font-weight: bold; padding: 6px 10px; border-radius: 4px; display: inline-block; width: 100%; }
.verde { background-color: #28a745; color: white; }
.portocaliu { background-color: #ffc107; color: black; }
.rosu { background-color: #dc3545; color: white; }

/* Butoane Acțiuni */
.btn-action { padding: 6px 10px; border: none; border-radius: 4px; color: white; cursor: pointer; font-size: 12px; margin: 2px; }
.btn-edit { background-color: var(--accent-color); }
.btn-edit:hover { opacity: 0.8; }