@import url('https://fonts.googleapis.com/css2?family=Black+Ops+One&family=Fira+Sans:ital,wght@0,300;0,500;0,900;1,300;1,500&family=Noto+Serif+Tamil:wght@300;400;900&family=Tangerine:wght@700&display=swap');

/* 
font-family: 'Black Ops One', cursive;
font-family: 'Fira Sans', sans-serif;
font-family: 'Noto Serif Tamil', serif;
font-family: 'Tangerine', cursive;
*/

:root {
    /* Color Variables */
    --primary-color-black: #272829;
    --primary-color-grey: hsl(226, 11%, 43%);
    --accent-color-light-grey: #D8D9DA;
    --accent-color-beige: #FFF6E0;
    --text-color: #333333;

    /* Size Variables */ 
    --top-nav-height: 2rem;
    --main-nav-height: 6.5rem;
}

*,
*::after,
*::before {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    color: inherit;
}

body {
    font-size: 15px;
    color: var(--text-color);
    font-family: 'Fira Sans', sans-serif;
}

body:has(.mobile-dropdown-btn:hover) {
    overflow-y: hidden;
}

/* Sticky position main header used to make it so the top-nav is hidden */

.main-header {
    position: sticky;
    top: calc(-1 * var(--top-nav-height));
    z-index: 1;
}

/* CSS for Top Nav */

.top-nav {
    background-color: var(--accent-color-light-grey);
    height: var(--top-nav-height);
    padding-right: 1.5rem;
}

.top-nav ul {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

.top-nav li {
    display: flex;
    align-items: center;
}

.top-nav * {
    height: 100%;
}

.main-header a,
.main-header ul {
    text-decoration: none;
    list-style: none;
}

.top-nav a {
    height: 75%;
}

.top-nav li:first-child a,
.top-nav li:nth-child(2) a {
    height: auto;
    font-size: 1.25rem;
    margin-right: 0.5rem;
    font-weight: bold;
}

.icon-wrapper {
    height: 100%;
    display: flex;
    align-items: center;
}

.icon-wrapper.envelope:hover .plain-envelope {
    /* content: url("./imgs/envelope-icon-hover.svg"); */
    display: none;
}

.icon-wrapper.envelope .heart-envelope{
    display: none;
}

.icon-wrapper.envelope:hover .heart-envelope {
    display: flex;
}

.icon-wrapper.telephone:hover .plain-phone {
    /* content: url("./imgs/telepone-icon-hover.svg"); */
    display: none;
}

.icon-wrapper.telephone .bold-phone {
    display: none;
}

.icon-wrapper.telephone:hover .bold-phone {
    display: flex;
}

.icon-wrapper.linkedIn:hover {
    color: black;
}

.top-nav li:first-child a:hover,
.top-nav li:nth-child(2) a:hover {
    color: black;
}

/* CSS for Main Navigation */

.main-nav {
    height: var(--main-nav-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--primary-color-black);
    padding: 0 1.5rem;
    box-shadow: 0 5px 10px 1px rgba(0, 0, 0, 0.2);
}

/* CSS for the logo inside main and mobile navigation*/

.logo-container {
    /* background-color: white; */
    border-radius: 100vw;
    border: 4px solid white;
    box-shadow: inset 0 0 0px 3px hsl(0, 0%, 80%);
    outline: 2px solid hsla(210, 3%, 30%, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.main-logo-text {
    color: white;
    position: relative;
    -webkit-user-select: none;
    /* Safari */
    -ms-user-select: none;
    /* IE 10 and IE 11 */
    user-select: none;
    /* Standard syntax */
}

.logo-bold-text {
    font-family: 'Black Ops One', cursive;
    font-size: 3.25rem;
    position: black;
}

a.logo-home-link {
    text-decoration: none;
    display: block;
    height: 5.4rem;
    width: 5.4rem;
    border-radius: 100vw;
}

.logo-cursive-text {
    color: hsl(226, 11%, 60%);
    position: absolute;
    font-size: 1.5rem;
    font-family: 'Tangerine', cursive;
    bottom: 0;
    right: 0;
    translate: -10% -10%;
}

/* logo css ending */

.main-nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 3rem;
    font-size: 1.25rem;
    font-weight: bold;
    white-space: nowrap;
}

.main-nav a {
    color: var(--accent-color-light-grey);
}

.main-nav a:hover {
    color: hsl(210, 3%, 60%);
}

/* CSS for Mobile Navigation */

.mobile-nav {
    height: var(--main-nav-height);
    background-color: var(--primary-color-black);
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem;
    display: none;
    z-index: 1;
}

/* CTA contact button by mobile nav */

.mobile-phone-icon .icon-wrapper {
    width: calc(var(--main-nav-height) * 0.3);
}

.mobile-phone-icon .icon-wrapper .plain-phone {
    fill: var(--accent-color-light-grey);
}

.mobile-phone-icon .icon-wrapper .bold-phone {
    /* fill: hsla(185, 53%, 40%, 0.75); */
    fill: white;
}

/* end */

.mobile-dropdown-btn {
    width: calc(var(--main-nav-height) * 0.5);
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    background:transparent;
    background: none;
    border: none;
}

.mobile-nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mobile-dropdown-btn:hover > .mobile-nav-container {
    translate: 0 0;
    box-shadow: 0 0 10px 2px rgba(0, 0, 0, 0.2);
    overflow-x: hidden;
}

.mobile-nav-icon-wrapper {
    overflow: hidden;
    cursor: pointer;
    color: var(--accent-color-light-grey);
    width: calc(var(--main-nav-height) * 0.5);
    border-radius: 100vw;
    display: flex;
    justify-content: center;
    align-items: center;
}

.mobile-nav-icon-wrapper:hover {
    background-color: rgba(255, 255, 255, 0.2);
    color: hsla(210, 3%, 50%);
}

.mobile-nav-container {
    position: fixed;
    height: 100vh;
    width: 50vw;
    background-color: var(--accent-color-beige);
    top: 0;
    right: 0;
    translate: 100% 0;
    transition: translate 300ms ease-in-out;
    overflow-y: hidden;
    z-index: 2;
}

.mobile-nav-decor {
    height: 4rem;
    width: 100%;
    position: absolute;
    background-image: url("./imgs/Montains.svg");
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
    margin-top: 0.25rem;
    rotate: 10deg;
    /* -webkit-transform: scaleX(-1);
    transform: scaleX(-1); */
}

.decor-lines:first-child {
    left: auto;
    right: 50%;
    rotate: -20deg;
    translate: 1.5rem 0.5rem;
}

.mobile-nav-container > ul:first-of-type::before {
    content: "";
    background-color: hsla(210, 3%, 50%, 0.5);
    height: 4px;
    width: 100%;
    position: absolute;
    bottom: 0;
    translate: 0 4rem;
}

.mobile-nav-container ul:first-of-type {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 4.5rem;
    height: var(--top-nav-height);
    position: relative;
}

.mobile-nav-separator {
    height: 4rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    position: relative;
}

.mobile-nav-separator::before,
.mobile-nav-separator::after {
    position: absolute;
    font-family: 'Black Ops One', cursive;
    font-weight: 500;
    top: 50%;
    color: #333333;
    font-size: 2.5rem;
    z-index: 2;
}

.mobile-nav-separator::before {
    left: 50%;
    content: "Z";
    translate: -2.5rem -45%;
}

.mobile-nav-separator::after {
    content: "T";
    left: auto;
    right: 50%;
    translate: 2.4rem -45%;
}

.mobile-nav-separator .separator-lines {
    height: 2px;
    width: 40%;
    position: relative;
    background-color: hsla(210, 3%, 50%, 0.5);
    /* background-color: var(--primary-color-grey); */
}

.mobile-nav-separator .separator-lines:nth-child(2) {
    width: 65%;
    position: relative;
}

/* .mobile-nav-separator::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    translate: -50% -50%;
    height: 2rem;
    width: 2px;
    background-color: var(--primary-color-grey);
    z-index: 2;
    border-radius: 100vw;
} */

.mobile-nav-separator .separator-lines:nth-child(2)::before {
    content: "";
    position: absolute;
    width: 0; 
    height: 0; 
    border-top: 1rem solid transparent;
    border-bottom: 1rem solid transparent;
    border-left: 1rem solid #333333;
    bottom: 0;
    translate: -50% 50%;
}

.mobile-nav-separator .separator-lines:nth-child(2)::after {
    content: "";
    position: absolute;
    width: 0; 
    height: 0; 
    border-top: 1rem solid transparent;
    border-bottom: 1rem solid transparent;
    border-right: 1rem solid #333333;
    bottom: 0;
    translate: -50% 50%;
}

.mobile-nav-container ul:last-child {
    display: flex;
    /* height: 24rem; */
    flex-direction: column;
    align-items: center;
    overflow-y: auto;
    border-bottom: 4px solid hsla(210, 3%, 50%, 0.5);
}

.mobile-nav-container ul:last-child li,
.mobile-nav-container ul:last-child a {
    width: 100%;
    height: 4rem;
    display: block;
    font-size: 2rem;
    text-align: center;
}

.mobile-nav-container ul:last-child a {
    height: 100%;
    padding: 1rem;
    border-bottom: 2px solid hsla(210, 3%, 85%, 0.5);
}

.mobile-nav-container ul:last-child a:hover {
    background-color: hsla(43, 80%, 90%);
}

/* CSS for visual accessibility */

.top-nav a:focus {
    outline: 3px solid var(--primary-color-grey);
    outline-offset: 2px;
    border-radius: 100vw;
    overflow: hidden;
}

.main-nav a:first-child:focus,
.mobile-nav a:first-child:focus  {
    outline-offset: 3px;
    box-shadow: none;
}

.main-nav a:focus,
.mobile-nav a:focus,
.mobile-nav button:focus {
    outline: 3px solid var(--accent-color-light-grey);
    border-radius: 100vw;
    outline-offset: 2px;
    overflow: hidden;
}

/* .main-nav a:first-child:focus .logo-bold-text {
    color: var(--primary-color-grey);
}

.main-nav a:first-child:focus .logo-cursive-text {
    color: var(--accent-color-light-grey);
} */

/* CSS for main content */

.main-content {
    height: 300vh;
}

/* CSS for main footer */

.main-footer {
    height: calc(var(--main-nav-height) * 0.7);
    width: 100vw;
    background-color: var(--primary-color-black);
    padding: 0 1.5rem;
    /* position: relative;
    z-index: 0; */
}

.main-nav-footer ul {
    display: flex;
    height: inherit;
    justify-content: flex-start;
    align-items: center;
    list-style: none;
    color: var(--accent-color-light-grey);
    gap: 1.5rem;
}

.main-nav-footer,
.main-nav-footer ul {
    height: 100%;
    font-size: 1rem;
    font-weight: bold;
}

.main-nav-footer ul li a {
    display: block;
    width: calc(var(--main-nav-height) * 0.35);
}

.main-nav-footer .icon-wrapper:hover {
    color: white;
}

.main-nav-footer .text-link.my-learning {
    margin-left: 1.5rem;
}

.main-nav-footer .text-link {
    position: relative;
    z-index: 0;
}

.main-nav-footer .text-link {
    text-decoration: none;
    width: auto;
    color: var(--accent-color-light-grey);
}

.main-nav-footer .text-link:hover {
    color: hsl(210, 3%, 60%);
}

.main-nav-footer .text-link.my-learning::before {
    content: "";
    width: 2px;
    height: calc(var(--main-nav-height) * 0.7);
    background-color: rgba(255, 255, 255, 0.201);
    position: absolute;
    left: -1.5rem;
    top: 50%;
    translate: 50% -50%;
    pointer-events: none;
}

/* Main footer navigation */

/* Media Queries */

@media (max-width: 800px) {
    .top-nav {
        display: none;
    }

    .main-header {
        top: 0;
    }

    .main-nav {
        display: none;
    }

    .mobile-nav {
        display: flex;
    }

    .mobile-nav-icon-wrapper:hover { 
        background-color: transparent;
        background: none;
    }
}

@media (max-width: 500px) {
    .mobile-nav-container {
        width: 70vw;
    }

    .main-nav-footer .text-link.my-learning {
        display: none;
    }
    .main-nav-footer .text-link::before {
        content: "";
        width: 2px;
        height: calc(var(--main-nav-height) * 0.7);
        background-color: rgba(255, 255, 255, 0.201);
        position: absolute;
        left: -1.5rem;
        top: 50%;
        translate: 50% -50%;
    }
}

@media (max-height: 540px) {
    .mobile-nav-container ul:last-child {
        height: 20rem;
        border-bottom: 4px dashed hsla(210, 3%, 50%, 0.5);
    }

    .mobile-nav-container ul:last-child::before {
        content: "";
        width: 0;
        height: 0;
        border-left: 10px solid transparent;
        border-right: 10px solid transparent;
        border-top: 10px solid hsla(210, 3%, 50%, 0.5);
        position: absolute;
        top: 30.6rem;
    }
}