/*
=============== 
Fonts
===============
*/
@import url("https://fonts.googleapis.com/css?family=Open+Sans|Roboto:400,700&display=swap");

/*
=============== 
Variables
===============
*/

:root {
    /* dark shades of primary color*/
    --clr-primary-1: hsl(205, 86%, 17%);
    --clr-primary-2: hsl(205, 77%, 27%);
    --clr-primary-3: hsl(205, 72%, 37%);
    --clr-primary-4: hsl(205, 63%, 48%);
    /* primary/main color */
    --clr-primary-5: hsl(205, 78%, 60%);
    /* lighter shades of primary color */
    --clr-primary-6: hsl(205, 89%, 70%);
    --clr-primary-7: hsl(205, 90%, 76%);
    --clr-primary-8: hsl(205, 86%, 81%);
    --clr-primary-9: hsl(205, 90%, 88%);
    --clr-primary-10: hsl(205, 100%, 96%);
    /* darkest grey - used for headings */
    --clr-grey-1: hsl(209, 61%, 16%);
    --clr-grey-2: hsl(211, 39%, 23%);
    --clr-grey-3: hsl(209, 34%, 30%);
    --clr-grey-4: hsl(209, 28%, 39%);
    /* grey used for paragraphs */
    --clr-grey-5: hsl(210, 22%, 49%);
    --clr-grey-6: hsl(209, 23%, 60%);
    --clr-grey-7: hsl(211, 27%, 70%);
    --clr-grey-8: hsl(210, 31%, 80%);
    --clr-grey-9: hsl(212, 33%, 89%);
    --clr-grey-10: hsl(210, 36%, 96%);
    --clr-white: #fff;
    --clr-red-dark: hsl(360, 67%, 44%);
    --clr-red-light: hsl(360, 71%, 66%);
    --clr-green-dark: hsl(125, 67%, 44%);
    --clr-green-light: hsl(125, 71%, 66%);
    --clr-black: #222;
    --ff-primary: "Roboto", sans-serif;
    --ff-secondary: "Open Sans", sans-serif;
    --transition: all 0.3s linear;
    --spacing: 0.1rem;
    --radius: 0.25rem;
    --light-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --dark-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    --max-width: 1170px;
    --fixed-width: 620px;
}

/*
=============== 
Global Styles
===============
*/

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

body {
    font-family: var(--ff-secondary);
    background: var(--clr-grey-10);
    color: var(--clr-grey-1);
    line-height: 1.5;
    font-size: 0.875rem;
}

ul {
    list-style-type: none;
}

a {
    text-decoration: none;
}

h1,
h2,
h3,
h4 {
    letter-spacing: var(--spacing);
    text-transform: capitalize;
    line-height: 1.25;
    margin-bottom: 0.75rem;
    font-family: var(--ff-primary);
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.25rem;
}

h4 {
    font-size: 0.875rem;
}

p {
    margin-bottom: 1.25rem;
    color: var(--clr-grey-5);
}

@media screen and (min-width: 800px) {
    h1 {
        font-size: 4rem;
    }

    h2 {
        font-size: 2.5rem;
    }

    h3 {
        font-size: 1.75rem;
    }

    h4 {
        font-size: 1rem;
    }

    body {
        font-size: 1rem;
    }

    h1,
    h2,
    h3,
    h4 {
        line-height: 1;
    }
}

/*  global classes */

/* section */
.section {
    padding: 5rem 0;
}

.section-center {
    width: 90vw;
    margin: 0 auto;
    max-width: 1170px;
}

@media screen and (min-width: 992px) {
    .section-center {
        width: 95vw;
    }
}

main {
    min-height: 100vh;
    display: grid;
    place-items: center;
}

/*
=============== 
Navbar
===============
*/
nav {
    background: var(--clr-white);
    box-shadow: var(--light-shadow);
}

.nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
}

.nav-toggle {
    font-size: 1.5rem;
    color: var(--clr-primary-5);
    background: transparent;
    border-color: transparent;
    transition: var(--transition);
    cursor: pointer;
}

.nav-toggle:hover {
    color: var(--clr-primary-1);
    transform: rotate(90deg);
}

.logo {
    height: 40px;
}

.links a {
    color: var(--clr-grey-3);
    font-size: 1rem;
    text-transform: capitalize;
    letter-spacing: var(--spacing);
    display: block;
    padding: 0.5rem 1rem;
    transition: var(--transition);
}

.links a:hover {
    background: var(--clr-primary-8);
    color: var(--clr-primary-5);
    padding-left: 1.5rem;
}

.social-icons {
    display: none;
}

.links {
    height: 0;
    overflow: hidden;
    transition: var(--transition);
}

.show-links {
    height: 10rem;
}

@media screen and (min-width: 800px) {
    .nav-center {
        max-width: 1170px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 1rem;
    }

    .nav-header {
        padding: 0;
    }

    .nav-toggle {
        display: none;
    }

    .links {
        height: auto;
        display: flex;
    }

    .links a {
        padding: 0;
        margin: 0 0.5rem;
    }

    .links a:hover {
        padding: 0;
        background: transparent;
    }

    .social-icons {
        display: flex;
    }

    .social-icons a {
        margin: 0 0.5rem;
        color: var(--clr-primary-5);
        transition: var(--transition);
    }

    .social-icons a:hover {
        color: var(--clr-primary-7);
    }
}