/* assets/css/style.css */
body {
    font-family: 'Sarabun', sans-serif;
    background-color: #f0f2f5;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

/* ควบคุมโครงสร้างหลัก */
.wrapper {
    display: flex;
    width: 100%;
    align-items: stretch;
}

/* Sidebar Styling */
#sidebar {
    min-width: 260px;
    max-width: 260px;
    background: #2c3e50;
    color: #fff;
    transition: all 0.3s;
    min-height: 100vh;
    position: fixed; /* ล็อคให้อยู่กับที่ */
}

#sidebar .nav-link {
    color: rgba(255,255,255,0.8);
    padding: 15px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

#sidebar .nav-link:hover {
    background: #1a252f;
    color: #fff;
}

/* Content Area Styling */
.main-content {
    width: 100%;
    padding: 20px 40px;
    margin-left: 260px; /* ดันเนื้อหาไปทางขวาเท่ากับความกว้าง Sidebar */
    min-height: 100vh;
}

/* Dashboard Cards */
.card-stat {
    border: none;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: 0.3s;
}

.card-stat:hover {
    transform: translateY(-5px);
}

@media (max-width: 768px) {
    #sidebar { margin-left: -260px; }
    .main-content { margin-left: 0; padding: 15px; }
}