/* import fonts  */
@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@200;300;400;500;600;700;800;900&display=swap');

/* Reset Style */
*,
*::after,
*::before {
    padding: 0;
    margin: 0;
    box-sizing: border-box;

}

:root {
    /* Typography  */
    --font-size: 18px;
    --font-family: 'Cairo', sans-serif;
    /* Colors */
    --dark: #100F0F;
    --darkslategray: #0F3D3E;
    --lightgray: #E2DCC8;
    --whitesmoke: #F1F1F1;
    --chocolate: #D1512D;
    --white: white;
}

body {
    background-color: var(--whitesmoke);
    color: var(--dark);
    font-family: var(--font-family);
}

/* utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* app  */
.app {
    padding: 2rem 0;
    width: 100%;
}

img.app__logo {
    width: 100px;
    position: relative;
    left: 50%;
    transform: translateX(-50%);
    -webkit-transform: translateX(-50%);
    -moz-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    -o-transform: translateX(-50%);
}

.app__title {
    font-size: 3rem;
    text-align: center;
    margin: .3rem 0;
}

.app__container {
    display: flex;
    flex-direction: column;
}

.columns {
    display: flex;
}

.row {
    width: 50%;
}

.row__left>.form {
    display: flex;
    flex-direction: column;
    padding: 3rem;
}

.row__left>.form .input {
    padding: .4rem .4rem .4rem .8rem;
    margin-bottom: 1rem;
    border: 1px solid var(--lightgray);
    outline: 0;
    font-size: 18px;
    border-radius: 4px;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    -ms-border-radius: 4px;
    -o-border-radius: 4px;
    background-color: var(--white);
}

.row__left>.form .input:focus {
    border: 2px solid var(--darkslategray);
}

.button {
    border-radius: 4px;
    outline: 0;
    border: 0;
    padding: .9rem .4rem;
    font-size: 18px;
    cursor: pointer;
}

.button:hover {
    opacity: .7;
    transition: .4s ease-in-out;
    -webkit-transition: .4s ease-in-out;
    -moz-transition: .4s ease-in-out;
    -ms-transition: .4s ease-in-out;
    -o-transition: .4s ease-in-out;
}

.button--add {
    background-color: var(--darkslategray);
    color: var(--whitesmoke);
}

.button--edit {
    background-color: var(--lightgray);
    color: var(--dark);
}

.row__right {
    padding: 3rem;
}

/* students */
.students {
    border-radius: .4rem;
    -webkit-border-radius: .4rem;
    -moz-border-radius: .4rem;
    -ms-border-radius: .4rem;
    -o-border-radius: .4rem;
    background-color: var(--darkslategray);
    padding: 1rem;
    overflow-x: auto;
    height: 400px;
    position: relative;
    box-shadow: inset 0px 6px 11px -5px #000000;
}

.students::-webkit-scrollbar {
    background-color: var(--lightgray);
    border-radius: 0 .4rem .4rem 0;
    -webkit-border-radius: 0 .4rem .4rem 0;
    -moz-border-radius: 0 .4rem .4rem 0;
    -ms-border-radius: 0 .4rem .4rem 0;
    -o-border-radius: 0 .4rem .4rem 0;
    width: .8rem;
}

.students::-webkit-scrollbar-thumb {
    background-color: var(--chocolate);
    border-radius: 0 .4rem .4rem 0;
    -webkit-border-radius: 0 .4rem .4rem 0;
    -moz-border-radius: 0 .4rem .4rem 0;
    -ms-border-radius: 0 .4rem .4rem 0;
    -o-border-radius: 0 .4rem .4rem 0;
}

.students__list {
    list-style-type: none;
    box-shadow: inset 0px 6px 11px -5px #000000;

}

.student__title {
    font-size: 1.4rem;
    color: var(--dark);
    text-align: center;
}

.no_students {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
    color: var(--chocolate);
    visibility: hidden;
    width: -2px;
    height: -2px;
    text-align: center;

}

.no_students.show {
    visibility: visible;
    width: initial;
    height: initial;
    font-size: 2rem;
}

.students__list .student:nth-child(even) {
    background-color: var(--lightgray);
}

.students__list .student:nth-child(odd) {
    background-color: var(--whitesmoke);
}

.student {
    color: var(--dark);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .8rem 1rem;
    margin-bottom: .8rem;
    border-radius: .4rem;
    -webkit-border-radius: .4rem;
    -moz-border-radius: .4rem;
    -ms-border-radius: .4rem;
    -o-border-radius: .4rem;
}

.student__infos {
    display: flex;
    flex-direction: column;
    font-size: 1rem;
}

.remove {
    color: var(--chocolate);
    cursor: pointer;
    transition: .2s ease-in-out;
    -webkit-transition: .2s ease-in-out;
    -moz-transition: .2s ease-in-out;
    -ms-transition: .2s ease-in-out;
    -o-transition: .2s ease-in-out;
}

.remove:active {
    transform: scale(1.3);
    -webkit-transform: scale(1.3);
    -moz-transform: scale(1.3);
    -ms-transform: scale(1.3);
    -o-transform: scale(1.3);
}

.student__name {
    font-size: 2rem;
    font-weight: 600;
    cursor: pointer;
    text-transform: capitalize;
}

.student__name:hover {
    text-decoration: underline;
}

.student__address,
.student__note {
    color: var(--darkslategray)
}

.student__id {
    visibility: hidden;
    width: 0;
    height: -2px;
    font-size: 0;
}

/* media query for mobile  */
@media screen and (max-width:768px) {

    .app__container>.columns {
        flex-direction: column;
    }

    .row {
        width: 100%;
    }

}