:root {
    /**
    *colors
    */

    --cadet-blue-crayola: hsl(227, 13%, 73%);
    --maximum-yellow-red: hsl(41, 95%, 61%);
    --medium-sea-green: hsl(142, 43%, 54%);
    --blue-crayola_10: hsla(222, 100%, 61%, 0.05);
    --smocky-black_30: hsla(0, 0%, 6%, 0.3);
    --eerie-black-1: hsl(240, 5%, 8%);
    --eerie-black-2: hsl(228, 9%, 10%);
    --raisin-black: hsl(225, 15%, 16%);
    --blue-crayola: hsl(222, 100%, 61%);
    --roman-silver: hsl(223, 10%, 52%);
    --presian-red: hsl(0, 64%, 52%);
    --gunmetal_50: hsla(230, 16%, 22%, 0.5);
    --gainsboro: hsl(0, 0%, 85%);
    --cultured: hsl(0, 0%, 93%);
    --white_50: hsla(0, 0%, 100%, 0.5);
    --white_30: hsla(0, 0%, 100%, 0.3);
    --white_10: hsla(0, 0%, 100%, 0.1);
    --black_10: hsla(0, 0%, 0%, 0.1);
    --white: hsl(0, 0%, 100%);

    /**
    *gradient color
    */
    --gradient: linear-gradient(90deg, var(--white_10) 0px 77%, var(--white_50) 92%, transparent)

    
    /**
    *typography
    */

    --ff-dm-sans: 'Dm Sans', sans-serif;
    --fs-1: 3.2rem;
    --fs-2: 3rem;
    --fs-3: 2.4rem;
    --fs-4: 2rem;
    --fs-5: 1.8rem;
    --fs-6: 1.5rem;
    --fs-7: 1.4rem;
    --fs-8: 1.2rem;


    --fw-500: 500;
    --fw-700: 700;


    
    /**
    *spacing
    */

    --section-padding: 100px;

    
    /**
    *shadow
    */

    --shadow-1: 0px 4px 8px var(--black_10);
    --shadow-2: 0px 30px 10px -20px var(--smocky-black_30);
    --shadow-3: 0px 15px 10px -20px var(--smocky-black_30);


      /**
    * radius
    */

    --radius-12: 12px;
    --radius-24: 24px;


      /**
    *transition
    */

    --transition-1: 0.25s ease;
    --transition-2: 0.5s ease;
    --transition-1: 1s ease;
    --cubic-out: cubic-bezier(0.33, 0.85, 0.4, 0.96);


    


}

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




li { list-style: none;}

a{
    text-decoration: none;
    color: inherit;
}


a,
img,
svg,
data,
span,
button { display: block;}

img { height: auto;}

button{
    background: none;
    border: none;
    font: inherit;
    cursor: pointer;
}
.msg1{
    color: var(--presian-red);
}


address { font-style: normal;}

table { border-collapse: collapse;}


html {
    font-family: var(--ff-dm-sans);
    font-size: 10px;
    scroll-behavior: smooth;
}

body{
    background-color: var(--eerie-black-2);
    color: var(--cadet-blue-crayola);
    font-size: 1.6rem;
    line-height: 1.4;
    
}

::-webkit-scrollbar { width: 10px; }

::-webkit-scrollbar-track { background-color: hsl(220, 4%, 5%); }

::-webkit-scrollbar-thumb { background-color: hsl(220, 5%, 20%);}

::-webkit-scrollbar-thumb:hover { background-color: hsl(220, 5%, 30%);}

:focus-visible { outline-offset: 4px;}


/* HEader */


.header{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--eerie-black-1);
    padding-block: 15px;
    z-index: 4;
}

.header .acti {
    position: fixed;
    top: -66px;
    background-color: var(--white);
    border-block-start: 1px solid var(--cultured);
    box-shadow: var(--shadow-1);
    animation: slideIn 0.25 var(--cubic-out) forwards;
}

.animate{
    opacity: 0;
    animation: slideTop 1s ease forwards;
    animation-delay: .3s;
}

@keyframes slideIn {
    0%{
        transform: translateY(0);
        background-color: var(--white);
    }

    100%{
        transform: translateY(100%);
        background-color: var(--eerie-black-2);
    }
}
@keyframes slideRight {
    0% {
        transform: translateX(-100px);
        opacity: 0;
    }
    100% {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideLeft {
    0% {
        transform: translateX(100px);
        opacity: 0;
    }
    100% {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideTop {
    0% {
        transform: translateY(100px);
        opacity: 0;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}



@keyframes slideBottom {
    0% {
        transform: translateY(-100px);
        opacity: 0;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}


@keyframes zoomIn {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}



@keyframes floatImage {
    0% {
        transform: translateY(0);
        
    }
    50% {
        transform: translateY(-24px);
    
    }
    100% {
        transform: translateY(0);
    
    }
}

.trade-view{
    margin-top: 130px;
}

.header > .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.logo {
    color: var(--white);
    font-family: var(--ff-dm-sans);
    font-size: 2.5rem;
    font-weight: var(--fw-700);
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav-toggle-btn .line{
    width: 26px;
    height: 3px;
    background-color: var(--white);
    transition: var(--transition-1);
}

.nav-toggle-btn .line:not(:last-child) { margin-block-end: 4px;}


.nav-toggle-btn {
    padding: 8px 5px;
    margin-inline-start: auto;
}

.nav-toggle-btn.activ .line-1 { transform: rotate(45deg) translate(5px, 6px);}

.nav-toggle-btn.activ .line-2 { opacity: 0;}

.nav-toggle-btn.activ .line-3 { transform: rotate(-45deg) translate(4px, -5px);}

.navbar { 
    
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--eerie-black-1);
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    transition: 0.25s var(--cubic-out);
}
.navbar.active {
    max-height: calc(100vh - 63px);
    visibility: visible;
    transition-duration: 0.5s;
}

.navbar-item:not(:last-child) { border-block-end: 1px solid var(--white_30); }

.navbar-link{
    color: var(--white);
    font-weight: var(--fw-700);
    padding: 12px 30px;
    transition: var(--transition-1);
}
.navbar-link:is(:hover, :focus, .active) { color: var(--blue-crayola); }


/*Reused */

.container { padding-inline: 15px;}

.btn {
    color: var(--white);
    border-radius: 50px;
}
.btn-outline {
    font-size: var(--fs-6);
    font-weight: var(--fw-500);
    border: 1px solid var(--white);
    padding: 5px 15px;
    transition: var(--transition-1);
}

.btn-outline:is(:hover, :focus) {
    background-color: var(--blue-crayola);
    border-color: var(--blue-crayola);
}

.btn-primary {
    position: relative;
    background-color: var(--blue-crayola);
    max-width: max-content;
    font-weight: var(--fw-700);
    padding: 13px 30px;
    overflow: hidden;
    z-index: 1;
    opacity: 0;
    animation: slideTop 1s ease forwards;
    animation-delay: 2s;
}

.btn-primary::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: -50px;
    background-image: var(--gradient);
    transform: translateX(-100%);
    opacity: 0;
    z-index: -1;
    transition: var(--transition-2);
}

.btn-primary:is(:hover, :focus)::after{
    transform: translateX(0);
    opacity: 1;
}

/*
[data-section] > * {
    transform: translateY(50px);
    opacity: 0;
    transition: var(--transition-3);
}

[data-section].active > * {
    opacity: 1;
    transform: translateY(0);
}

*/

.h1,
.h2,
.h3 {
    color: var(--white);
    line-height: 1.1;
}

.h1 {
    font-size: var(--fs-1);
}

.h2 { font-size: var(--fs-2);}

.h3 { font-size: var(--fs-3);}

.w-100 { width: 100%;}

.badge {
    color: var(--white);
    font-size: var(--fs-8);
    font-weight: var(--fw-700);
    padding: 4px 8px;
    border-radius: 50px;
}
.badge.red { background-color: var(--presian-red);}

.badge.green { background-color: var(--medium-sea-green);}

.last-update.red { color: var(--presian-red);}

.last-update.green { color: var(--medium-sea-green);}

.section-text {
    font-size: var(--fs-5);
    margin-block-end: 15px 35px;
}

.section-list { margin-block-end: 35px;}

.section-item:not(:last-child) { margin-block-end: 25px;}

.section-item .title-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-block-end: 15px;
}
.section-item .title-wrapper i {
    flex-shrink: 0;
    color: var(--blue-crayola);
    font-size: 24px;
}

/* HERD */

.hero { padding-block: 150px 140px; }

.hero-content { margin-block-end: 80px;}

.hero-text {
     font-size: var(--fs-5);
     margin-block: 25px 40px;
     opacity: 0;
    animation: slideLeft 1s ease forwards;
    animation-delay: calc(.2s * var(--i));
    }

.hero-title{
    opacity: 0;
    animation: slideRight 1s ease forwards;
    animation-delay: .7s;
}


/* TREND */

.trend{
    background-color: var(--eerie-black-1);
    padding-block-end: 0;
}

.trend-tab {
    background-color: var(--eerie-black-2);
    border: 1px solid var(--raisin-black);
    border-radius: var(--radius-24);
    padding: 20px;
    box-shadow: var(--shadow-2);
    margin-block-start: -160px;
}

.trend-tab .tab-nav{
    display: flex;
    flex-wrap: wrap;
    padding-block-end: 20px;
    margin-block-end: 20px;
    border-block-end: 1px solid var(--raisin-black);
}

.trend-tab .tab-btn {
    color: var(--white);
    font-size: var(--fs-7);
    font-weight: var(--fw-700);
    padding: 7px 15px;
    border-radius: 50px;
    transition: var(--transition-1);
}

.trend-tab .tab-btn.active { background-color: var(--blue-crayola);}

.trend-tab .tab-content {
    display: grid;
    gap: 20px;
}

.trend-card {
    padding: 20px;
    border-radius: var(--radius-12);
    transition: var(--transition-1);
}
.trend-card:is(:hover, .active) { 
    background-color: var(--gunmetal_50);
    box-shadow: var(--shadow-3);
}

.trend-card .card-title-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}

.trend-card .card-title {
    color: var(--white);
    font-size: var(--fs-7);
    font-weight: var(--fw-700);
    transition: var(--transition-1);
}

.trend-card .card-title:is(:hover, :focus) { color: var(--blue-crayola);}

.trend-card  .card-title .span {
    color: var(--cadet-blue-crayola);
    display: inline-block;
    margin-inline-start: 5px;
}

.trend-card .card-value {
    color: var(--white);
    font-size: var(--fs-3);
    font-weight: var(--fw-700);
    margin-block: 10px;
}

.trend-card .card-analytics {
    display: flex;
    align-items: center;
    gap: 8px;
}

.trend-card .current-price { font-size: var(--fs-7);}


/* market */

.market {
    background-color: var(--eerie-black-1);
    color: var(--white);
}

.market .title-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin-block-end: 25px;
}

.market .btn-link {
    position: relative;
    min-width: max-content;
    font-weight: var(--fw-700);
    transition: var(--transition-1);
}

.market .btn-link:is(:hover, :focus) { color: var(--blue-crayola);}

.market .btn-link::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--raisin-black);
    transition: var(--transition-1);
}

.market .btn-link:is(:hover, :focus)::after { background-color: var(--blue-crayola);}

.market-tab {
    overflow-x: auto;
    padding-block-end: 30px;
}

.market-tab::-webkit-scrollbar { height: 14px;}

.market-tab::-webkit-scrollbar-thumb {
    border: 2px solid hsl(220, 4%, 5%);
    border-width: 2px 10px;
}

.market-tab .tab-nav {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-block-end: 40px;
}

.market-tab .tab-btn  {
    min-width: max-content;
    color: var(--white);
    font-size: var(--fs-7);
    font-weight: var(--fw-700);
    padding: 7px 24px;
    border-radius: 50px;
}

.market-tab .tab-btn.active { background-color: var(--blue-crayola);}

.market-table { width: 100%;}

.table-heading,
.table-data { padding: 8px;}

.table-heading {
    font-size: var(--fs-5);
    text-align: left;
    white-space: nowrap;
}

.market-table .table-head { border-block-end: 2px solid var(--white);}

.table-row:not(.table-title) { height: 90px;}

.market-table .table-row {
    font-size: var(--fs-5);
    border-block-end: 1px solid var(--raisin-black);
    transition: var(--transition-1);
}

.market-table .table-body .table-row:is(:hover, :focus-within) {
    background-color: var(--blue-crayola_10);
}

.market-table .add-to-fav {
    color: var(--cadet-blue-crayola);
    font-size: 10px;
}


.market-table .add-to-fav.active .icon-outline,
.market-table .add-to-fav .icon-fill { display: none;}


.market-table .add-to-fav .icon-outline,
.market-table .add-to-fav.active .icon-fill { display: block;}

.market-table .add-to-fav.active i { color: var(--maximum-yellow-red);}

.market-table .wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: max-content;
}

.market-table .coin-name {
    font-size: var(--fs-5);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition-1);
}

.market-table .coin-name .span{
    color: var(--roman-silver);
    font-size: var(--fs-7);
}

.market-table .coin-name:is(:hover, :focus) { color: var(--blue-crayola);}

.market-table :is(.rank .last-price, .market-cap) { font-weight: var(--fw-700);}

.market-table .btn-outline {
    border-width: 2px;
    padding-inline: 10px;
}

.market-table .table-row:is(:hover, :focus-within) .btn-outline {
    background-color: var(--blue-crayola);
    border-color: var(--blue-crayola);
}

/** 
# Instruction 
*/

.instruction :is(.section-title, .section-text) { text-align: center; }

.instruction .section-title { margin-block-end: 15px; }

.instruction-list {
    display: grid;
    gap: 30px;
    margin-block-end: 50px;
}

.instruction-card { text-align: center; }

.instruction-card .card-banner { transition: var(--transition-2);}

.instruction-card:hover .card-banner { transform: rotateY(1turn);}

.instruction-card .img {
    margin-inline: auto;
    margin-block-end: 12px;
}

.instruction-card .card-subtitle {
    font-size: var(--ff-dm-sans);
    font-weight: var(--fw-700);
    text-transform: uppercase;
}

.instruction-card .card-title{
    font-size: var(--fs-4);
    margin-block: 5px 15px;
}

.instruction-card .card-text { padding-inline: 20px;}


/*
* #ABOUT 
*/

.about { background-color: var(--eerie-black-1);}

.about-banner { margin-block-end: 40px;}


/*  
* #APP
*/

.app {
    overflow: hidden;
    padding-block-end: 0;
}

.app-wrapper {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 15px;
}

.app-banner {
    position: relative;
    margin-block-start: 60px;
}

.app-banner .span {
    position: absolute;
    top: 10%;
    left: 0;
    color: var(--white);
    font-size: var(--fs-7);
    font-weight: var(--fw-700);
    padding: 8px 15px;
    border: 2px solid var(--white);
    border-radius: 50px;
}

/* 
* # footer
*/

.footer-top{
    background-color: var(--eerie-black-1);
    padding-block: 80px 50px;
}

.footer-top .container {
    display: grid;
    gap: 50px;
}

.footer .logo { font-size: 3rem;}

.footer-title {
    color: var(--white);
    font-size: var(--fs-3);
    margin-block: 25px 20px;
}

.footer-contact-link:not(:last-child) { margin-block-end: 12px;}

address.footer-contact-link { max-width: 30ch;}

.footer-list-title {
    color: var(--white);
    font-size: var(--fs-7);
    font-weight: var(--fw-700);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-list > li:not(:last-child) { margin-block-end: 10px;}

.footer-list > li:first-child { margin-block-end: 20px;}

.footer-link {
    color: var(--gainsboro);
    transition: var(--transition-1);
}

.footer-link:is(:hover, :focus) { color: var(--blue-crayola);}

.footer-bottom {
    background-color: var(--eerie-black-2);
    padding-block: 20px;
}

.copyright {
    text-align: center;
    margin-block-end: 20px;
}

.copyright-link {
    display: inline-block;
    color: var(--blue-crayola);
}

.social-list{
    display: flex;
    justify-content: center;
    gap: 20px;
}

.social-link {
    font-size: 18px;
    transition: var(--transition-1);
}
.social-link:is(:hover, :focus) { color: var(--blue-crayola);}

/*
* responsive for larger than 575px screen
*/

@media ( min-width: 575px) {
    /*
    * Custom Property
    */

    :root {
        /*
        * typography
        */

        --fs-1: 4rem;
        --fs-2: 3.4rem;
    }


    /*
    * REUSED STYLE
    */
    .container {
        max-width: 540px;
        width: 100%;
        margin-inline: auto;
    }

      /*
    * herd
    */

    .hero-text { --fs-5: 2rem;}
}


/*
* responsive for larger than 768px screen
*/

@media ( min-width: 768px) {

    /*
    * CUSTOM PROPERTY
    */

    :root {
        /*
        * typography
         */

         --fs-1: 5rem;
         --fs-2: 4rem;
    }



    /*
    * REUSED STYLE
    */

    .container { max-width: 750px;}

    

    /*
    * HERD
    */

    .hero-banner {
        max-width: max-content;
        margin-inline: auto;
        opacity: 0;
        animation: zoomIn 1s ease forwards, floatImage 4s ease-in-out infinite;
        animation-delay: 2s, 3s;
    }

    
    /*
    * Trend 
    */

    .trend-tab .tab-content { grid-template-columns: 1fr 1fr;}

  
    /*
    * Instruction
    */  

    .instruction { overflow: hidden; }

    .instruction .section-text {
        max-width: 40ch;
        margin-inline: auto;
    }

    .instruction-list { grid-template-columns: 1fr 1fr;}

    .instruction-card { position: relative;}

    .instruction-card::after{
        content: "";
        width: 160px;
        height: 12px;
        background-image: '';
        background-size: contain;
        background-position: center;
        position: absolute;
        top: 50px;
        right: -95px;
    }

    .instruction-list > li:nth-child(even) .instruction-card::after{
        display: none;
    }


    
    /*
    * APP
    */

    .app-banner { max-width: max-content;}



    
    /*
    * footer
    */

    .footer-top .container { grid-template-columns: 1fr 1fr 1fr;}

    .footer-brand { grid-column: 1 / 3;}

    .footer-bottom .container {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .copyright{ margin-block-end: 0;}


}


/*
* responsive for larger than 992 {px screen
*/

@media ( min-width: 992px) {
    /*
    * REUSED STYLE
     */
     .container { max-width: 960px;}

       /*
    * Header
     */

     .header { padding-block: 5px;}

     .header.active { top: -6px;}

     .header > .container { gap: 50px;}

     .nav-toggle-btn { display: none; }

     .navbar,
     .navbar.active {
        all: unset;
        margin-inline-end: auto;
     }

     .navbar-list {
        display: flex;
        align-items: center;
     }

     .navbar-item:not(:last-child) { border-block-end: none;}

     .navbar-link {
        font-size: var(--fs-7);
        padding: 15px 12px;
     }

     .navvar-link:is(:hover, :focus, .active) {
        background-color: var(--blue-crayola);
        color: var(--white);
     }

       /*
    * Hero
     */

     .hero .container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        align-items: center;
        gap: 30px;
     }

     .hero-content { margin-block-end: 0;}

     /*
     * Market
     */
     .market-tab { padding-block-end: 0;}

       /*
    * ABOUT
     */
     .about .container {
        display: grid;
        grid-template-columns: 1fr 0.8fr;
        align-items: center;
        gap: 30px;
     }

     .about-banner { 
        margin-block-end: 0;
        opacity: 0;
        animation: zoomIn 1s ease forwards, floatImage 4s ease-in-out infinite;
        animation-delay: 2s, 3s;
    }

       /*
    * APP
     */

     .app { padding-block: 0;}

     .app .container {
        display: grid;
        grid-template-columns: 0.8fr 1fr;
        align-items: flex-end;
        gap: 30px;
     }

     .app-banner { margin-block-start: 0;}

     .app-content { margin-block: 50px;}


}


/*
* responsive for larger than 1200px {px screen
*/

@media ( min-width: 1200px) {
    /*
    * CUSTOM PROPERTY
    */

    :root {
        /*
        * typography
         */

         --fs-1: 6.4rem;
         --fs-2: 4.8rem;
    }

     /*
        * REUSED STYLE
     */

     .container { max-width: 1200px;}

      /*
        * HEADER
     */

     .header.active { top: -64px;}

     .navbar-link { font-size: unset}

      /*
        * HERD
     */

     .hero .container { gap: 100px;}

      /*
        * TREND
    */

    .trend-tab .tab-content { grid-template-columns: repeat(4, 1fr);}

     /*
        * Instruction
      */

      .instruction-list { grid-template-columns: repeat(4, 1fr);}

      .instruction-list > li:nth-child(even) .instruction-card::after{
        display: block;
      }

      .instruction-list > li:last-child .instruction-card::after{
        display: none;
      }

       /*
        * about, app
     */

     :is(.about, .app) .container { gap: 60px;}

      /*
        * APP
      */

      .app-content{ margin-block: 100px;}

       /*
        * FOOTER
        */

        .footer-top { padding-block: 100px 90px;}

        .footer-top .container { grid-template-columns: 1fr 0.5fr 0.5fr 0.5fr 0.5fr;}

        .footer-brand { grid-column: auto;}





}