:root {
    --arrow-bg: rgba(255, 255, 255, 0.3);
    --arrow-icon: url(https://upload.wikimedia.org/wikipedia/commons/9/9d/Caret_down_font_awesome_whitevariation.svg);
    --option-bg: white;
    --select-bg: rgba(255, 255, 255, 0.2);
}

.footer,
button.accordion {
    position: relative;
    z-index: 2
}

#main {
    max-width: 450px;
    margin-left: auto;
    margin-right: auto;
    background: #fff;
}

button.accordion {
    color: #fff;
    cursor: pointer;
    padding: 18px 18px 20px 10px;
    width: 100%;
    text-align: left;
    border: none;
    outline: 0;
    transition: .4s;
    width: calc(100% - 20px);
    font-size: 18px;
    margin-top: 4px;
    border-radius: 40px;
    margin-left: 10px;
    margin-right: 10px;
    margin-bottom: 4px;
    font-weight: bold;
    padding-left: 20px;
    text-shadow: 1px 1px 2px #00000045;
}

button.accordion:after {
    content: '→';
    font-size: 18px;
    color: #fff;
    float: left;
    margin-right: 7px;
    margin-top: -2px;
    font-weight: 700;
    padding-top: 2px;
}

button.accordion.active:after {
    content: '↓';
    padding-top: 2px;
    padding-right: 2px;
}

a {
    cursor: pointer
}

.b {
    font-weight: bold;
}

.aleft {
    text-align: left;
}

.info {
    font-size: 11px;
    line-height: 18px;
    color: #767676;
}

.color1 {
    color: #31b6e5
}

.color2 {
    color: #b8cc1c
}

.color3 {
    color: #f5a427
}

.color4 {
    color: #e5398a
}

.color5 {
    color: #2f3f5c
}

.color6 {
    color: #c7c7c7
}

button.bg1 {
    background-color: #31b6e5
}

button.bg2 {
    background-color: #b8cc1c
}

button.bg3 {
    background-color: #f5a427
}

button.bg4 {
    background-color: #e5398a
}

button.bg5 {
    background-color: #2f3f5c
}

button.bg6 {
    background-color: #c7c7c7
}

li,
ol,
ul {
    margin-left: -10px;
    font-size: 15px
}

.it {
    font-style: italic;
}

.colorb {
    color: #344164;
}

div.panel {
    font-weight: 400;
    font-size: 15px;
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: max-height .2s ease-out;
    text-align: justify;
    line-height: 23px;
    background: #fdfdfd;
    border-radius: 30px;
}

.footer {
    text-align: center
}

h2 {
    font-size: 18px;
}

body {
    margin: 0 auto;
    padding: 0;
    max-width: 100%;
    font-family: "Montserrat", sans-serif;
    font-optical-sizing: auto;
    background-image: linear-gradient(to bottom, #ffffff, #f8f7f8, #f1efef, #eae7e6, #e3dfdd, #e3dfdd, #e3dfdd, #e3dfdd, #eae7e6, #f1efef, #f8f7f8, #ffffff);
}

.lien_tel {
    color: #2f3f5c;
    text-decoration: none;
}

.header {
    padding-top: 30px;
    padding-bottom: 10px;
    width: 100%;
    height: 150px;
    text-align: center;
    background-image: linear-gradient(0deg, #fff 73%, #efeee9 100%) !important;
}

.header img {
    width: 62%;
    height: auto
}

.btn_img {
    position: absolute;
    right: 20px;
    margin-top: -23px;
    width: 26px;
}

.btn_img img {
    filter: drop-shadow(0 0 0.15rem #00000045);
}

.oiseau {
    background: url('img/oiseau.png') no-repeat;
    background-size: 50%;
    position: fixed;
    bottom: 0;
    width: 50px;
    height: 29px;
    right: calc(50% - 180px);
    z-index: 1000;
}

.footer {
    background-image: linear-gradient(to bottom, rgba(0, 0, 0, .1), rgba(0, 0, 0, 0));
    font-size: 12px;
    color: #767676;
    width: calc(100% - 20px);
    padding-top: 0px;
    margin-top: 5px;
    border-radius: 30px;
    margin-left: 10px;
    margin-right: 10px;
}

#clear {
    clear: both
}

select {
    /* Reset */
    appearance: none;
    outline: 0;
    font: inherit;
    /* Personalize */
    width: 100%;
    padding: 10px;
    background: var(--arrow-icon) no-repeat right 0.8em center / 1.4em, linear-gradient(to left, rgb(205, 207, 219) 3em, rgba(255, 255, 255, 0.2) 3em);
    color: #000;
    border: 1px solid #c5ceee;
    margin-top: 5px;
    border-radius: 0.25em;
    cursor: pointer;
    font-weight: bold;
    /* Remove IE arrow */
    &::-ms-expand {
        display: none;
    }
    /* Remove focus outline */
    &:focus {
        outline: none;
    }
    /* <option> colors */
    option {
        color: inherit;
        background-color: var(--option-bg);
    }
}

textarea {
    /* Reset */
    appearance: none;
    outline: 0;
    font: inherit;
    /* Personalize */
    width: calc(100% - 22px);
    padding: 10px;
    color: #000;
    border: 1px solid #c5ceee;
    margin-top: 5px;
    border-radius: 0.25em;
    height: 80px;
}

.installation {
    cursor: pointer;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-weight: bold;
    color: #2f3f5c;
    width: 140px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 20px;
    padding: 10px;
    background: linear-gradient(to bottom, rgba(0, 0, 0, .1), rgba(0, 0, 0, 0));
}

svg {
    opacity: 0.8;
}

.u {
    text-decoration: underline;
}

#send button {
    position: relative;
    width: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    background: none;
    cursor: pointer;
    outline: none;
    transition: 200ms;
    padding: 10px 42px;
    font-size: 15px;
    border-radius: 8px;
    border: 1px solid #c5ceee;
    background: transparent;
    color: #2f3f5c;
    margin-left: auto;
    margin-right: auto;
    margin-top: 10px;
    font-weight: bold;
}

#send i {
    position: absolute;
    color: transparent;
    transition: 200ms;
}

#send button:focus {
    color: transparent;
    outline: none;
    border: 2px solid transparent;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    padding: 25px 25px;
    border-left: 2px solid #344164;
    animation: spin 2s 500ms forwards;
}

#send button:focus i {
    animation: check 300ms 2250ms forwards;
}

@keyframes spin {
    80% {
        border: 2px solid transparent;
        border-left: 2px solid #344164;
    }
    100% {
        transform: rotate(720deg);
        border: 2px solid #344164;
    }
}

@keyframes check {
    to {
        color: #344164;
    }
}