*, ::after, ::before{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html{
    scroll-behavior: smooth;
}
:root{
    --border-radius-0: 8px;
    --field-bg-color: #e7e7e7;
    --primary-color: rgb(221, 30, 110);;
    --background-color-0: #fff;
    --background-color-1: #000;
    --font-color-0: #000;
    --font-color-1: #fff;
    --font-color-2: #808080;
    --font-color-3: #414141;
    --border-color-0: var(--field-bg-color);
    --body-color-0: #ffffff;
    --box-shadow-0-4: rgba(225, 225, 225, 0.2); 
    --box-shadow-0-5: 0 0 100vh 100vh rgba(0, 0, 0, 0); 
    
}
body{
    font-family: "Roboto", sans-serif;
    font-size: 16px;
    background-color: var(--body-color-0);
    transition: background 400ms ease-in-out;
    color: var(--font-color-0);
}
::placeholder {
    color: var(--font-color-2);
}
::-webkit-scrollbar {
    display: none;
}
h1, h2 {
    color: var(--font-color-0);
    font-weight: normal;
}
p {
    color: var(--font-color-0);
}
a{
    text-decoration: none;
}
li{
    list-style: none;
}
.intro-title i {
    color: var(--background-color-1);
    font-size: 0.8em;
    margin: 0 1rem;
    border: 1px solid var(--background-color-1);
    padding: 0.5rem;
    border-radius: var(--border-radius-0);
    cursor: pointer;
}
.container{
    margin: 0 auto;
    max-width: 700px;
}
.pages-p {
    margin-top: 1rem;
}
::selection {
    background: var(--background-color-1);
    color: var(--font-color-1);
}

/* navigation */
nav{
    width: 100%;
    position: sticky;
    position: -webkit-sticky;
    top: 0;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--box-shadow-0-4);
    padding: 0.8rem;
    border-bottom: 1px solid var(--field-bg-color);
    backdrop-filter: blur(30px);
    z-index: 5;
}
.logo{
    font-weight: 600;
    font-size: 1.4em;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}
.logo img {
    width: 40px;
    border-radius: 5px;
    margin-right: 0.5rem;
    /* box-shadow: 4px 2px 5px 0 rgba(255, 255, 255, 0.7); */
    border-right: 2px solid #eee;
}
.logo .logo-text {
    margin-right: 0.5rem;
    color: var(--font-color-0);
}
.logo span{
    color: var(--font-color-0);
}
.theme {
    display: none;
}
.nav-links-container {
    overflow-x: auto;
}
.nav-links {
    width: 600px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    padding: 1rem;
}
nav .item-2 {
    display: flex;
    align-items: center;
}
nav .btn-0 {
    margin-left: 0.5rem;
}
nav .item-2 .theme {
    margin: 0 0.5rem 0 2rem;
    cursor: pointer;
    position: relative;
}
nav .item-2 .theme svg path {
    fill: var(--font-color-0);
}

/* form */
form{
    padding-top: 0rem;
}
form h1{
    margin-left: 0rem;
    font-size: 2em;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--font-color-0);
}
form h2 {
    font-size: 1.2em;
    color: var(--font-color-3);
    font-weight: 400;
}
form h1 span {
    color: var(--primary-color);
}
form h2 span {
    color: var(--primary-color);
}
input{
    width: 100%;
    border: 2px solid var(--border-color-0);
    padding: 0.5rem;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    outline: none;
    font-size: 1em;
    font-weight: 600;
    background-color: var(--field-bg-color);
    margin: 0.2rem 0 0.5rem 0;
    border-radius: var(--border-radius-0);
    color: var(--font-color-0);
}
input[type="text"]:focus{
    border: 2px solid var(--background-color-1);
}
select{
    width: 100%;
    padding: 0.5rem;
    background-color: var(--field-bg-color);
    color: var(--font-color-0);
    border-radius: var(--border-radius-0);
    border: 1px solid var(--border-color-0);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    font-size: 1em;
    cursor: pointer;
    margin: 0.2rem 0 0.5rem 0;
     /* for Firefox */
  -moz-appearance: none;
  /* for Chrome */
  -webkit-appearance: none;
  appearance: none;
}
#section-0 .container .item-1,
#section-0 .container .item-2,
#section-0 .container .item-3 {
    margin: 2rem 0 2rem 0;
    color: var(--font-color-3);
    padding: 1rem;
    border-radius: var(--border-radius-0);
    background-color: var(--background-color-0);
}
/* select:hover{
    appearance: none;
} */
textarea{
    border: 2px solid var(--background-color-1);
    outline: none;
    resize:none;
    margin: 1rem 0;
    padding: 1rem;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    width: 100%;
    height: 200px;
    border-radius: var(--border-radius-0);
    font-weight: 600;
}

.group-no{
    margin-bottom: 1rem;
}

.members{
    display: none;
    margin-top: 1rem;
}
.members.active{
    display: block;
}

/* section-0 */
#section-0 {
    padding-bottom: 4rem;
}
 
/* section-1 */
#section-1{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--box-shadow-0-4);
    transition: 300ms;
    visibility: hidden;
    opacity: 0;
    z-index: 5;
}
#section-1.active{
    visibility: visible;
    opacity: 1;
    backdrop-filter: blur(50px);
}
#section-1 .container{
    background-color: var(--background-color-0);
    margin: 6rem auto 1rem auto;
    position: relative;
    box-shadow: var(--box-shadow-0-5);
    padding: 4rem 1rem;
    border-radius: var(--border-radius-0);
    text-align: center;
}
#section-1 form{
    padding-top: 1rem;
    display: none;
}
#section-1 svg {
    position: absolute;
    top: 0;
    right: 0;
    cursor: pointer;
    margin: 1rem;
}
#section-1 svg path {
    fill: var(--background-color-1);
}
#section-1 .container .copyrights{
    padding: 1rem;
}
#section-1 .container .owner {
    color: var(--font-color-3);
}
#section-1 .items{
    display: flex;
    justify-content: space-between;
    align-items: center;

}
#section-1 .items .item-1 h2{
    color: var(--primary-color);
    font-weight: normal;
    margin-bottom: 1rem;
}
#section-1 .items .item-1 p{
    color: var(--font-color-3);
    margin: 0.5rem 0;
}
#section-1 .container img{
    width: 340px;
    position: relative;
    box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.1);
}

/* error */
.error .container{
    color: #ff0066;
    font-weight: 600;
}
.notification .container{
    color: #00bd55;
}

/* footer */
footer{
    margin: 2rem 0;
}
.copyrights{
    color: var(--font-color-3);
}
.copyrights p,
.copyrights a {
    font-size: 0.7em;
    color: var(--font-color-3);
}
footer .container .owner {
    color: var(--font-color-3);
}


/* button */
.btn{
    color: var(--font-color-0);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-0);
    font-weight: 600;
    cursor: pointer;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    font-size: 1em;
    border: none;
}
.btn-0 {
    background: var(--primary-color);
    margin-left: 1rem;
    color: #eee;
}
.btn-1{
    color: var(--font-color-1);
    background-color: var(--background-color-1);
    margin-top: 1rem;
    font-size: 0.8em;
}
.btn-2{
    background-color: var(--background-color-0);
    border: none;
    font-weight: 600;
    cursor: pointer;
}
.btn-3 {
    background: var(--primary-color);
    color: #eee;
    margin-top: 1rem;
}
.btn-4 {
    background: var(--background-color-1);
    color: var(--font-color-1);
}
.btn-5 {
    color: var(--font-color-0);
    margin-left: 1rem;
    font-weight: 500;
}
.btn-6 {
    background: var(--field-bg-color);
    color: var(--font-color-0);
    border-radius: var(--border-radius-0);
    padding: 0.4rem 0.6rem;
    text-decoration: none;
    font-size: 0.8em;
    font-weight: 500;
    cursor: pointer;
}
.btn-6.active {
    background: var(--background-color-1);
    color: var(--font-color-1);
}

/* MEDIA */
@media screen and (max-width: 540px){
    form h1 {
        padding: 0 1rem;
    }
    form h2 {
        margin: 0 1rem;
    }
    #section-1 .container{
        margin: 1rem;
    }
    #section-1 .items{
        flex-direction: column;
    }
    #section-1 .container img{
        width: 100%;
    }
    .btn-3 {
        background: var(--primary-color);
        color: #eee;
        margin-left: 1rem;
    }

}


/* about page */
.avatar {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.owner-avatar {
    border-radius: 50%;
    margin: 1rem;
    width: 80px;
}
.about-page .item-1 {
    text-align: center;
}



/* notice */
.notice {
    padding: 2rem;
    text-align: center;
    background: #008b69;
    border-radius: 5px;
}
.notice p {
    color: #fff;
    margin-bottom: 1rem;
    font-weight: 400;
    font-size: 1.4em;
}
.notice a {
    padding: 0.5rem 1rem;
    color: #000;
    background: #fff;
    font-weight: 600;
    border-radius: 5px;
}


/* ads */
.ads {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-start;
    overflow-x: auto;
    color: var(--background-color-1);
}
.ads::-webkit-scrollbar {
    display: block !important;
    background: var(--field-bg-color);
    height: 8px;
    border-radius: 5px;
}
.ads::-webkit-scrollbar-thumb {
    background: var(--background-color-1);
    border-radius: 10px;
}
.ads .set {
    display: flex;
    gap: 0.5rem;
}
.ads iframe {
    width: 260px;
    height: 160px;
    border-radius: 1rem;
    border: 2px solid var(--field-bg-color);
}
.ads a {
    padding: 0.5rem 1rem;
    color: var(--background-color-0);
    background: var(--background-color-1);
    border-radius: 0.5rem;
    font-size: 0.8em;
}

/* login */
.login {
    position: fixed;
    width: 100%;
    height: 100%;
    overflow: auto;
    background: var(--background-color-0);
    z-index: 10;
    left: 0;
    top: 0;
    display: flex;
    align-items: center;
    flex-direction: column;
    padding-bottom: 4rem;
    /* visibility: hidden; */
}
.login .container {
    display: flex;
    align-items: center;
    flex-direction: column;
    margin-top: 6rem;
}
.login form {
    max-width: 360px;
    padding: 1rem;
    text-align: center;
    margin-top: 1rem;
}
.login form input[type="text"] {
    padding: 0.6rem;
}
.login .logo {
    padding: 1rem;
    width: 100px;
    border-radius: 2rem;
    box-shadow: 2px -2px 10px 0 rgba(255, 255, 255, 0.7); 
    margin-bottom: 0.5rem;
}
.login form input {
    border-radius: 1rem;
}
.login .btn-0 {
    padding: 0.6rem 1rem;
}
.login form a {
    color: var(--font-color-0);
}
.login .covers {
    display: flex;
    justify-content:center;
    flex-direction: column;
    max-width: 920px;
    align-items: center;
}
.login .cover {
    border-radius: 2rem;
    padding: 1rem;
    width: 100%;
}

/* key */
.key .container {
    padding: 1rem;
    max-width: 600px;
}
.key .container .cover {
    width: 100%;
    margin: 1rem 0;
    border-radius: 1rem;
}
.key h1 {
    font-size: 3em;
    font-weight: normal;
}
.key h1, h2 {
    font-weight: bold;
}
.key form {
    max-width: 600px;
    padding: 1rem;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.key .logo {
    text-align: center;
    width: 60px;
    border-radius: 1rem;
    margin: 1rem auto;
    box-shadow: 2px -2px 10px 0 rgba(255, 255, 255, 0.7); 
    margin-bottom: 0.5rem;
    margin-top: 2rem;
}
.key .btn-0 {
    padding: 0.6rem 1rem;
    margin-left: 0;
    background: var(--background-color-1);
    color: var(--font-color-1);
}
.key ul {
    margin-left: 1rem;
}
.key ul li {
    list-style:square;
    color: var(--font-color-0);
}

/* footer */
footer {
    text-align: center;
    font-size: 0.7em;
}
footer a {
    color: var(--font-color-0);
}


/* Dark theme */
@media (prefers-color-scheme: dark) {
    :root {
    --border-radius-0: 5px;
    --field-bg-color: #2b2b2b;
    --background-color-0: #000000;
    --background-color-1: #eee;
    --font-color-0: #eeee;
    --font-color-1: #000000;
    --font-color-2: #808080;
    --font-color-3: #eee;
    --border-color-0: #202020;
    --body-color-0: #000000;
    --box-shadow-0-4: rgba(0, 0, 0, 0.2); 
    --box-shadow-0-5: 0 0 100vh 100vh rgba(255, 255, 255, 0.1); 
    }
}

@media screen and (max-width: 1090px) {
    .covers {
        flex-direction: column;
    }
}

@media screen and (max-width: 540px) {
    .ads::-webkit-scrollbar {
        display: none !important;
    }
    nav .logo .logo-text {
        display: none;
    }
    .key h1 {
        font-size: 2em;
    }
    .covers {
        flex-direction: column;
    }
}