style.css

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    /* font-family:monospace; */
    scroll-behavior: smooth;
    transition: 0.8s;
}

body {
    /* border: 2px solid rgb(26, 24, 24); */
    background: url(signupbg2.png);
    /* background: linear-gradient(to top, rgb(255, 273, 70) 50%, green); */
    /* background: linear-gradient(to bottom, rgb(148, 148, 148), rgb(53, 52, 52)); */
    /* background: linear-gradient(217deg, rgba(255,0,0,.8), rgba(255,0,0,0) 70.71%),            
    linear-gradient(127deg, rgba(0,255,0,.8), rgba(0,255,0,0) 70.71%),           
    linear-gradient(336deg, rgba(0,0,255,.8), rgba(0,0,255,0) 70.71%); */
    /* background: linear-gradient(red 0%, orange 25%, yellow 50%, green 75%, blue 100%); */
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
    /* height: 100vh; */
    scroll-behavior: smooth;
}

#about h3, #howtouse h3 {
    border-radius: 4px;
    width: max-content;
    padding: 5px;
    background-color: rgb(253, 206, 103);
    position: relative;
}
#about h3::after, #howtouse h3::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 3px;
    background-color: #000;
    transition: width 0.4s ease-in-out;
    cursor: progress;
}
#about h3:hover::after, #howtouse h3:hover::after {
    width: 100%;
}
header nav {
    display: flex;
    justify-content: space-between;
    /* background-color: rgb(193, 132, 228); */
    background-color: rgb(255, 222, 151);
    /* background-color: #21a126; */
    border-radius: 2px;
    color: black;
    overflow: hidden;
    position: fixed;
    top: 0;
    width: 100%;
    box-shadow: 3px 3px 5px black;
}
header ul {
    display: flex;
    justify-content: space-between;
    color: black;
}
header ul li {
    /* color: white; */
    color: black;
    /* color: black; */
    list-style-type: none;
    padding: 10px;
}

header ul a {
    color: black;
    text-decoration: none;
    font-size: 1.4em;
    font-weight: bold;
    padding-left: 5px;
    padding-right: 5px;
    margin: 0 5px;
}

header ul a:hover {
    /* background-color: #0dd114; */
    background-color: rgb(253, 206, 103);
    border-radius: 6px;
    /* text-decoration: underline; */
}

header h3 {
    font-size: 1.4rem;
    margin-top: auto;
    margin-bottom: auto;
}

.mainfront {
    margin-top: 130px;
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 85%;
    padding: 25px;
    border: 1px solid pink;
    border-radius: 5px;
    /* background-color: rgb(193, 132, 228); */
    background-color: rgb(255, 222, 151);
    /* background-color: #21a126; */
    /* background: linear-gradient(to right, #21a126, #0dd114); */
    /* background: linear-gradient(to right, lightgreen -50%, rgb(255, 222, 151)); */
    /* background: linear-gradient(to right, green, blue, red, yellow); */
    /* background: linear-gradient(to right,blue, red, yellow, green); */
    box-shadow: 3px 3px 6px black, 0px 0px 6px black;
    margin: auto;
    margin-bottom: 30px;
}

.first img {
    width: 550px;
    padding: 10px;
    /* padding-right: 60px;
    padding-top: 10px;
    padding-bottom: 10px;
    padding-right: 10px; */
}

.second {
    display: flex;
    justify-content: center;
    /* align-items: right; */
    flex-direction: column;
    border-left: 4px solid black;
    padding: 20px;
    /* border-top-left-radius: 5px;
    border-bottom-left-radius: 5px; */
    padding-left: 50px;
    padding-top: 20px;
    padding-bottom: 20px;
    padding-right: 20px;
}

.second .upsecond {
    font-size: 4.5rem;
    /* color: rgb(0, 132, 255); */
    color: black;
    font-weight: bold;
    /* visibility: hidden; */
    text-shadow: -4px 4px 4px rgb(211, 211, 206), 4px -4px 4px rgb(185, 185, 167);
    /* border: 1px solid purple; */
    width: 400px;
    margin-bottom: 15px;
    /* text-align: right; */
}

.second .midsecond {
    font-size: 2rem;
    /* color: rgb(35, 145, 248); */
    color: black;
    text-shadow: -3px 3px 5px rgb(243, 239, 239);
    width: 500px;
    margin-bottom: 35px;
    /* text-align: right; */
}

.downsecond a{
    background-color: black;
    color: white;
    border-radius: 4px;
    font-size: 1.2em;
    text-decoration: none;
    font-weight: bold;
    /* border: 1px solid black; */
    margin-top: 10px;
    padding: 10px;
    position: relative;
}

.downsecond a::before,
.downsecond a::after {
    content: '';
    position: absolute;
    height: 4px;
    width: 0;
    bottom: 0;
    background-color: white;
    transition: width 0.4s ease-in-out;
}

.downsecond a::before {
    left: 50%;
    transform: translateX(-50%);
}

.downsecond a::after {
    right: 50%;
    transform: translateX(50%);
}

.downsecond a:hover::before,
.downsecond a:hover::after {
    background-color: white;
    color: black;
    cursor: pointer;
    text-decoration: underline;
    width: 50%;
}
/* 
.downsecond a:hover {
    background-color: white;
    color: black;
    cursor: pointer;
    text-decoration: underline;
    opacity: 1;
    border: none;
} */
#attendancelogo {
    /* display: inline; */
    margin-top: 100px;
    width: 600px;
    border: 1px solid cyan;
    position: relative;
    right: 20px;
    /* height: auto; */
    /* position: relative; */
    /* animation: rotate 10s linear infinte; */
}
/* @keyframes rotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
} */
.signupstudentbody, .signupteacherbody {
    display: flex;
    /* border: 1px solid black; */
    justify-content: space-between;
}

.student-studying-img{
    /* width: 200px; */
    height: 350px;
    border-radius: 10px;
    box-shadow: 3px -3px 5px black;
    margin-left: 60px;
}
.teacher-teaching-img {
    width: 400px;
    border-radius: 10px;
    box-shadow: 3px -3px 5px black;
    margin-left: 60px;
}

#signup, #login {
    border-right: 3px solid saddlebrown;
    padding-right: 30px;
}
.logins {
    /* position: relative; */
    /* display: grid;
    grid-template-columns: 2fr 2fr 2fr;
    gap: 20px 2.5em; */
    /* top: 50%; */
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100vw;
    /* height: auto; */
    /* border: 2px solid red; */
    margin: auto;
    margin-top: 45px;
}

/* .logins:first-child {
    align-self: center;
}  */

.teacher {
    /* float: left; */
    width: max-content;
    height: auto;
    background-color: rgb(255, 222, 151);
    padding: 30px;
    border-radius: 10px;
    /* border: 1px solid black; */
    /* transition: 0.7s; */
    margin: 40px;
    /* left: 100px; */
    box-shadow: 3px 0px 5px black;
}
.student {
    /* float: right; */
    width: max-content;
    height: auto;
    background-color: rgb(255, 222, 151);
    padding: 30px;
    border-radius: 10px;
    /* border: 1px solid black; */
    /* transition: 0.7s; */
    margin: 30px;
    box-shadow: 3px 0px 5px black;
}

.signupstudent h1, .signupteacher h1 {
    font-size: 2.7rem;
    margin-bottom: 9px;
}

label {
    display: block;
    font-size: large;
    font-weight: bold;
    padding: 1px;
}

input {
    width: 300px;
    height: 30px;
    padding: 5px;
    font-size: 13px;
    margin-bottom: 9px;
    border-radius: 3px;
    border: none;
}

input[type="submit"] {
    /* background: linear-gradient(to right, pink, lightgreen); */
    background-color: white;
    border-radius: 3px;
    font-size: 18px;
    color: black;
    font-weight: bold;
    /* border: 1px solid black; */
    margin-top: 10px;
}

input[type="submit"]:hover {
    /* background: linear-gradient(to right, lightgreen, pink); */
    background-color: black;
    color: white;
    cursor: pointer;
    opacity: 1;
    border: none;
    /* transition: 0.4s; */
}

#iagree {
    display: flex;
    justify-content: left;
    align-items: center;
}
#agree-to-terms {
    max-width: fit-content;
}

#iagree label {
    font-size: 18px;
}

#forgetpwd {
    text-align: right;
    font-size: 15px;
    padding: 5px;
}
#forgetpwd a{
    font-weight: bold;
    letter-spacing: 0.6px;
    text-decoration: none;
}
#forgetpwd a:hover {
    cursor: pointer;
    text-decoration: underline;

}
 
.signupteacherfooter, .signupstudentfooter {
    text-align: center;
    margin-top: 10px;
}

.signupteacherfooter a, .signupstudentfooter a {
    /* background: linear-gradient(to right, pink, lightgreen); */
    background-color: white;
    border-radius: 3px;
    font-size: 18px;
    color: black;
    font-weight: bold;
    /* border: 1px solid black; */
    margin-top: 10px;
    text-decoration: none;
    padding: 3px;
}

.signupteacherfooter a:hover, .signupstudentfooter a:hover {
    opacity: 1;
    color: white;
    background-color: black;
    border: none;
    /* transition: 0.4s; */
}

#ttitle:hover, #stitle:hover {
    cursor: not-allowed;
}

#about h3, #howtouse h3 {
    font-size: 1.7em;
    margin-left: 10px;
    margin-bottom: 5px;
    padding: 7px 0px;
}
#about hr, .howtouse hr, .footer hr {
    width: 99%;
    margin-left: auto;
    margin-right: auto;
}
#about p{
    font-size: 1.2rem;
    margin: 18px 25px;
    padding: 7px 0px;
}
#howtouse p {
    font-size: 1.2em;
    margin: 18px 25px;
    padding: 7px 0px;
}
#howtouse ul li{
    font-size: 0.7em;
    /* list-style-type: none; */
}

.hideclass {
    display: none;
    visibility: hidden;
}

#tableContainer {
    margin-top: 20px;
    overflow-x: auto;
  }

#dataTable {
  width: 100%;
  border-collapse: collapse;
}
#dataTable th,
#dataTable td {
  padding: 10px;
  text-align: center;
}

#dataTable th:nth-child(1),
#dataTable td:nth-child(1),
#dataTable th:nth-child(2),
#dataTable td:nth-child(2),
#dataTable th:nth-child(3),
#dataTable td:nth-child(3) {
  min-width: 150px;
}
#dataTable th input[type="date"],
#dataTable td input[type="date"] {
  width: 100%;
  box-sizing: border-box;
  padding: 5px;
}
#dataTable th input[type="date"]::-webkit-inner-spin-button,
#dataTable th input[type="date"]::-webkit-calendar-picker-indicator,
#dataTable th input[type="date"]::-webkit-clear-button {
  display: none;
}
#dataTable th input[type="date"]:focus,
#dataTable td input[type="date"]:focus {
  outline: none;
  border: 2px solid #333;
  border-radius: 4px;
}
#dataTable th:first-child,
#dataTable td:first-child {
  position: sticky;
  left: 0;
  background-color: #f5f5f5;
  z-index: 1;
}
#dataTable td:first-child {
  text-align: left;
  font-weight: bold;
}
@media (max-width: 768px) {
  #tableContainer {
    overflow-x: scroll;
    padding-bottom: 10px;
  }
  #dataTable {
    min-width: 600px;
  }
}


/* student profile css */
/* Mobile-first styles */
#welcomestudent, #welcometeacher {
    margin-top: 80px;
    margin-bottom: 35px;
    margin-left: 20px;
    font-size: 2.3rem;
    width: max-content;
    padding: 5px;
    /* background-color: #21a126; */
    /* background: rgb(193, 132, 228); */
    background: rgb(255, 222, 151);
    border-radius: 6px;
    position: relative;
}

#welcomestudent::after, #welcometeacher::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 4px;
    background-color: #000;
    transition: width 0.4s ease-in-out;
    cursor: progress;
}
  
#welcomestudent:hover::after, #welcometeacher:hover::after {
    width: 100%;
}

#stuprohr, #teaprohr {
    width: 99%;
    margin-left: auto;
    margin-right: auto;
    height: 4px;
    border-radius: 5px;
    background-color: black;
    margin-bottom: 10px;
}
.enterprn {
    display: block;
    width: 100%;
    text-align: center;
    margin-bottom: 20px;
}

/* Style the input field */
#stuproprn {
    display: block;
    text-align: center;
    width: 30%;
    margin-left: auto;
    margin-right: auto;
    font-size: 18px;
    padding: 18px;
    box-sizing: border-box;
    margin-bottom: 12px;
    border: 1px solid black;
    border-radius: 4px;
}

/* Style the show data button */
#studatabtn {
    /* display: block; */
    width: 15%;
    margin-left: auto;
    margin-right: auto;
    padding: 10px;
    font-size: 18px;
    font-weight: bold;
    box-sizing: border-box;
    /* background-color: #4CAF50; */
    /* background-color: rgb(193, 132, 228); */
    /* background-color: #21a126; */
    background-color: rgb(255, 222, 151);
    color: black;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    position: relative;
}
#refreshbtnstupro {
    /* display: block; */
    width: 15%;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 20px;
    padding: 10px;
    font-size: 18px;
    font-weight: bold;
    box-sizing: border-box;
    /* background-color: #4CAF50; */
    /* background-color: rgb(193, 132, 228); */
    /* background-color: #21a126; */
    background-color: rgb(255, 222, 151);
    color: black;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    position: relative;
}

#studatabtn::before, #refreshbtnstupro::before {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background-color: black;
    transition: width 0.4s ease-in-out, left 0.4s ease-in-out;
    transform: translateX(-50%);
}
  
#studatabtn:hover::before, #refreshbtnstupro:hover::before {
    width: 25%;
    left: -10;
}
/* Adjust table styles */
table {
    width: 90%;
    margin-left: auto;
    margin-right: auto;
    border-collapse: collapse;
    border: 2px solid black;
    margin-top: 25px;
}

/* Center align table cells */
td, th {
    border: 2px solid black;
    font-size: 16px;
    text-align: center;
    padding: 12px;
    /* background-color: #21a126; */
    /* background-color: rgb(193, 132, 228); */
    background-color: rgb(255, 222, 151);
}

/* Apply border to table cells */
td {
    border: 1px solid black;
}

/* Style table headers */
.stableHead {
    border: 1px solid black;
    /* background-color: #4CAF50; */
    /* background-color: #21a126; */
    background-color: rgb(255, 222, 151);
    color: black;
}

/* Show table headers starting from tablet size */
@media (min-width: 800px) {
    .stableHead {
        display: table-row;
    }
}

/* Show table headers and apply background color starting from desktop size */
@media (min-width: 1024px) {
    .stableHead {
        display: table-row;
        /* background-color: #4CAF50; */
        background-color: rgb(255, 222, 151);
        /* background-color: #21a126; */
    }
}
/* teacherprofile css */
/* Center align buttons */
.buttons {
    width: 70%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    /* border: 1px solid black; */
    margin-top: 60px;
    margin-left: auto;
    margin-right: auto;
}
#showdata, #addstudent, #updatedata, #sendmails, #refreshbtnteapro, #saveSheet {
    /* display: block; */
    width: 15%;
    height: max-content;
    padding: 10px;
    margin-bottom: 10px;
    /* background-color: #4CAF50; */
    background-color: rgb(255, 222, 151);
    color: black;
    font-size: 1rem;
    font-weight: bold;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-top: auto;
    margin-bottom: auto;
    position: relative;
}

#showdata::before,
#addstudent::before,
#updatedata::before,
#sendmails::before,
#refreshbtnteapro::before,
#saveSheet::before {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 2px;
    background-color: black;
    transition: width 0.4s ease-in-out, left 0.4s ease-in-out;
}

#showdata:hover::before,
#addstudent:hover::before,
#updatedata:hover::before,
#sendmails:hover::before,
#refreshbtnteapro:hover::before,
#saveSheet:hover::before {
    width: 100%;
    left: 0;
}

/* Adjust table styles */
.tableteachershowdata {
    width: 30%;
    /* margin-left: auto;
    margin-right: auto; */
    border-collapse: collapse;
    border: 2px solid black;
    margin-top: 25px;
}

/* Center align table cells */
td, th {
    text-align: center;
    padding: 10px;
}

/* Style table headers */
#tableHead th {
    /* background-color: #4CAF50; */
    background-color: rgb(255, 222, 151);
    color: black;
}

/* Style the date input fields */
input[type="date"] {
    /* width: 100%; */
    padding: 10px;
    box-sizing: border-box;
    margin-top: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

/* Style the Save button */
#savedates {
    /* background-color: #4CAF50; */
    /* background-color: rgb(255, 222, 151); */
    background-color: rgb(255, 195, 65);
    color: black;
    font-weight: bold;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    padding: 5px 10px;
}

/* Increase padding for the Save button on desktop */
@media (min-width: 1024px) {
    #savedates {
        padding: 10px 20px;
    }
}