/* Colors */
:root {
    --flx-blue: #1661a0;
    --flx-petrol: #238a91;
    --flx-white: #f3f3f3;
    --flx-white-hover: #e3e3e3;
    --flx-black: #191919;
    --flx-black-hover: #292929;
}
:root {
    --bg-default: var(--flx-white);
    --bg-default-hover: var(--flx-white-hover);
    --bg-inverse: var(--flx-black);
    --bg-inverse-hover: var(--flx-black-hover);
    --fg-default: var(--flx-black);
    --fg-inverse: var(--flx-white);
    --bg-blueish: #bbddffa0;
    --bg-darken: #00000000;
    --bg-error: #cc0000;
    --flx-grey: #dddddd;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg-default: var(--flx-black);
        --bg-default-hover: var(--flx-black-hover);
        --bg-inverse: var(--flx-white);
        --bg-inverse-hover: var(--flx-white-hover);
        --fg-default: var(--flx-white);
        --fg-inverse: var(--flx-black);
        --bg-blueish: #6688aaa0;
        --bg-darken: #00000060;
        --bg-error: #880000;
        --flx-grey: #333333;
    }
}
/* Defaults */
* {
    font-family: Arial, Helvetica, sans-serif;
    box-sizing: border-box;
}
html,
body {
    margin: 0;
    padding: 0;
    background-color: var(--bg-default);
    color: var(--fg-default);
}
a {
    color: var(--fg-default);
}
a.button {
    display: inline-block;
    padding: 1em 2em;
    margin: 2em 0;
    color: var(--fg-inverse);
    background-color: var(--bg-inverse);
    border-radius: 3px;
    text-decoration: none;
}
a.button:hover {
    background-color: var(--bg-inverse-hover);
}
a.button.inverse {
    color: var(--fg-default);
    background-color: var(--bg-default);
}
a.button.inverse:hover {
    background-color: var(--bg-default-hover);
}
h1 {
    font-weight: 600;
    font-size: calc(42px + 1vw);
    line-height: 1.3;
}
h1.shadowed {
    text-shadow: 0px 0px 10px rgba(0,0,0,.75);
}
h2 {
    font-weight: 600;
    font-size: calc(24px + 0.6vw);
    line-height: 1.3;
}
h3 {
    font-weight: 600;
    font-size: calc(20px + 0.5vw);
    line-height: 1.3;
}
p.shadowed {
    text-shadow: 0px 0px 12px rgba(0,0,0,1);
}
/* Header bar - logo & name*/
header {
    display: flex;
    position: fixed;
    top: 0;
    width: 100%;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
    font-size: 1rem;
    color: var(--flx-white);
    background-color: var(--flx-blue);
    z-index: 100;
    box-shadow: 2px 5px 15px -2px rgba(0,0,0,0.75);
}
header .title {
    display: flex;
    position: relative;
    flex-wrap: nowrap;
    align-items: center;
    gap: 1rem;
    margin-left: 5vw;
}
header .title .logo {
    padding: 0.5rem;
    border-radius: 100%;
    background-color: var(--bg-default);
    line-height: 0;
}
header .title .logo img {
    width: 1.5rem;
}
header > .medium {
    margin-right: 5vw;
    flex: 1 1 auto;
    justify-content: end;
    align-self: stretch;
}
header > .small {
    position: relative;
    flex-wrap: nowrap;
    justify-content: end;
    align-self: stretch;
    flex: 1 1 auto;
}
/* Switch between full and hamburger menu at 800px */
@media (max-width: 799px) {
    header > .small {
        display: flex;
    }
    header > .medium {
        display: none;
    }
}
@media (min-width: 800px) {
    header > .small {
        display: none;
    }
    header > .medium {
        display: flex;
    }
}
/* Hamburger menu toggled by state of hidden checkbutton */
header > .small > input {
    display: none;
}
/* Container for Hamburger or cross */
header > .small > label {
    display: flex;
    position: relative;
    flex-flow: row;
    align-items: center;
    padding: 0.75rem 5vw 0.75rem 1vw;
    cursor: pointer;
}
header > .small > label > div {
    position: relative;
    width: 1rem;
    height: 1rem;
    overflow: hidden;
}
/* Hamburger (closed menu) made from 3 divs */
header > .small > input:checked + label > div > .hamburger-line {
    opacity: 0;
}
header > .small > label > div > .hamburger-line {
    opacity: 1;
    position: relative;
    width: 100%;
    height: 12.5%;
    background-color: var(--flx-white);
    transition: opacity .3s ease-in-out;
}
header > .small > label > div > .hamburger-line + .hamburger-line {
    margin-top: 31.25%;
}
/* Cross (opened menu) made from 2 divs */
header > .small > input:checked + label > div > .cross-line {
    opacity: 1;
}
header > .small > label > div > .cross-line {
    opacity: 0;
    position: absolute;
    top: 42%;
    left: -50%;
    width: 200%;
    height: 18%;
    background-color: var(--flx-white);
    transition: opacity .3s ease-in-out;
}
header > .small > label > div > .tl-br {
    rotate: 45deg;
}
header > .small > label > div > .tr-bl {
    rotate: -45deg;
}
header > .small > .closer {
    display: none;
    position: fixed;
    left: 0;
    top: 0;
    width: 100vw;
    height: 100vh;
    background-color: #00000000;
    cursor: default;
}
header > .small > input:checked + label + .closer {
    display: block;
}
/* Menu toggled by hamburger */
header > .small > input:checked + label + .closer + nav {
    transform: scaleY(1);
    transform-origin: top;
    box-shadow: 8px 8px 15px 9px rgba(0,0,0,0.75);
    transition: transform .3s ease-in-out, box-shadow 0s steps(1,end);
}
header > .small > nav {
    position: absolute;
    right: 5vw;
    top: 3rem;
    padding: 0.5rem;
    border-radius: 3px;
    background-color: var(--flx-blue);
    transform: scaleY(0);
    transform-origin: top;
    box-shadow: none;
    transition: transform .3s ease-in-out, box-shadow .3s steps(1,end);
    overflow: hidden;
}
header > .small > nav > ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
}
header > .small > nav > ul > li {
    white-space: nowrap;
    padding: 0.75rem 0.75rem;
}
header > .small > nav > ul > li > a {
    display: block;
    padding: 0.25rem 0.25rem;
    color: var(--flx-white);
    text-decoration: none;
    border-bottom: 2px solid rgb(0, 0, 0, 0);
    transition: border-bottom-color .5s;
}
header > .small > nav > ul > li > a.sub {
    margin-left: 1em;
}
header > .small > nav > ul > li > a:hover,
header > .small > nav > ul > li.current > a {
    border-bottom-color: var(--flx-white);
    transition: border-bottom-color .5s;
}
/* Wide menu */
header > .medium > ul {
    display: flex;
    position: relative;
    flex-flow: row nowrap;
    list-style-type: none;
    margin: 0;
    padding: 0;
}
header > .medium > ul > li > a {
    display: inline-flex;
    position: relative;
    height: 100%;
    align-items: center;
    padding: 0rem 1rem;
    text-decoration: none;
}
header > .medium > ul > li > a > div {
    color: var(--flx-white);
    border-bottom: 2px solid rgb(0, 0, 0, 0);
    transition: border-bottom-color .5s;
}
header > .medium > ul > li:hover > a > div,
header > .medium > ul > li.current > a > div{
    border-bottom-color: var(--flx-white);
    transition: border-bottom-color .5s;
}
header > .medium > ul > li > ul.products-menu {
    position: absolute;
    background-color: var(--flx-blue);
    list-style-type: none;
    margin: 0;
    padding: 0;
    transform: scaleY(0);
    transform-origin: top;
    box-shadow: none;
    transition: transform .3s ease-in-out, box-shadow .3s steps(1,end);
}
header > .medium > ul > li:hover > ul.products-menu {
    transform: scaleY(1);
    transform-origin: top;
    box-shadow: 8px 8px 15px 9px rgba(0,0,0,0.75);
    transition: transform .3s ease-in-out, box-shadow 0s steps(1,end);
}
header > .medium > ul > li > ul.products-menu > li {
    padding: 0.75rem 0.75rem;
}
header > .medium > ul > li > ul.products-menu > li > a {
    display: block;
    padding: 0.25rem 0.25rem;
    color: var(--flx-white);
    text-decoration: none;
    border-bottom: 2px solid rgb(0, 0, 0, 0);
    transition: border-bottom-color .5s;
}
header > .medium > ul > li > ul.products-menu > li > a:hover,
header > .medium > ul > li > ul.products-menu > li.current > a {
    border-bottom-color: var(--flx-white);
    transition: border-bottom-color .5s;
}
/* page content */
main {
    font-size: 1.1rem;
    line-height: 1.6rem;
}
main > :first-child {
    margin-top: 5rem;
}
.fullsize-starter {
    position: relative;
    height: calc(100vh - 5rem);
}
.content-box {
    position: relative;
    padding: 4vw 5vw;
    color: var(--fg-default);
    background-color: var(--bg-default);
    text-align: center;
}
.content-box.flx-petrol {
    color: var(--flx-white);
    background-color: var(--flx-petrol);
}
.content-box.flx-blue {
    color: var(--flx-white);
    background-color: var(--flx-blue);
}
/* content box with a single block only */
.content-box.left-block > * {
    display: inline-block;
    margin-top: 5rem;
    text-align: left;
}
/* content block splitted in right and left part */
.content-box.splitted {
    display: flex;
    flex-flow: row wrap;
    gap: 2rem;
    text-align: left;
    justify-content: space-between;
}
.content-box.splitted > * {
    flex: 1 1 0;
}
.content-box.splitted > * * {
    max-width: 90vw;
}
.content-box h1 {
    margin-top: 1rem;
}
.content-box h1,
.content-box h2,
.content-box h3,
.content-box p,
.content-box ul {
    position: relative;
    left: 50%;
    transform: translateX(-50%);
    max-width: 50rem;
}
/* Footer */
footer {
    display: flex;
    padding: 2.5vw;
    justify-content: space-between;
    background-color: var(--flx-grey);
}
footer > div {
    display: flex;
    flex-flow: column nowrap;
    padding: 2.5vw;
    gap: 0.5rem;
}
@media (max-width: 639px) {
    footer {
        flex-flow: column nowrap;
    }
    footer > div:last-child {
        align-items: flex-start;
    }
}
@media (min-width: 640px) {
    footer {
        flex-flow: row nowrap;
    }
    footer > div:last-child {
        align-items: flex-end;
    }
}
footer a {
    display: block;
    white-space: nowrap;
}