@import url('https://fonts.googleapis.com/css2?family=Sarabun:wght@300;400;500;600;700&display=swap');

body {
    font-family: 'Sarabun', sans-serif;
    background-color: #f4f6f9;
    margin: 0;
    padding: 0;
    color: #333;
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background: #343a40;
    color: #c2c7d0;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
}

.sidebar-header {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid #4f5962;
    background: #23272b;
}

.sidebar-header h3 {
    margin: 0;
    color: #fff;
    font-size: 20px;
    font-weight: 600;
}

.sidebar-nav {
    flex: 1;
    padding-top: 20px;
}

.sidebar-nav a {
    display: block;
    padding: 12px 20px;
    color: #c2c7d0;
    text-decoration: none;
    font-size: 16px;
    transition: 0.2s;
}

.sidebar-nav a:hover, .sidebar-nav a.active {
    background: #007bff;
    color: #fff;
}

.sidebar-nav a i {
    width: 25px;
    text-align: center;
    margin-right: 10px;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 250px;
    display: flex;
    flex-direction: column;
}

.top-navbar {
    background: #fff;
    padding: 15px 30px;
    border-bottom: 1px solid #dee2e6;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 1px 5px rgba(0,0,0,0.05);
}

.top-navbar h4 {
    margin: 0;
    font-size: 18px;
    color: #495057;
}

.content-wrapper {
    padding: 30px;
    flex: 1;
}

/* Cards */
.card {
    background: #fff;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 0 1px rgba(0,0,0,.125), 0 1px 3px rgba(0,0,0,.2);
    margin-bottom: 20px;
}

.card h3 {
    margin-top: 0;
    color: #343a40;
    border-bottom: 1px solid #eee;
    padding-bottom: 15px;
    margin-bottom: 20px;
}

/* Buttons */
.btn-primary {
    background: #007bff;
    color: #fff;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    transition: 0.2s;
    font-family: inherit;
    font-size: 15px;
}
.btn-primary:hover { background: #0056b3; }

.btn-danger { background: #dc3545; color: #fff; border: none; padding: 6px 12px; border-radius: 4px; cursor: pointer; text-decoration: none; font-size: 14px;}
.btn-warning { background: #ffc107; color: #212529; border: none; padding: 6px 12px; border-radius: 4px; cursor: pointer; text-decoration: none; font-size: 14px;}

/* Inputs */
.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-family: inherit;
    box-sizing: border-box;
}

/* 2FA 6-digit Inputs (Login & Setup) */
.otp-wrapper {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: 20px 0;
}
.otp-wrapper input {
    width: 45px;
    height: 55px;
    text-align: center;
    font-size: 24px;
    font-weight: 700;
    border: 2px solid #ddd;
    border-radius: 8px;
    background: #fdfdfd;
    transition: 0.3s;
    font-family: inherit;
}
.otp-wrapper input:focus {
    border-color: #007bff;
    box-shadow: 0 0 8px rgba(0,123,255,0.2);
    outline: none;
}