body {
    font-family: "Istok Web", sans-serif;
    font-size: 16px;
    margin: 0;
    padding: 0;
    width: 100vw;
    overflow-x: hidden;
}

:root {
    --rouge: #e82025;
}

/* STRUCTURE
********************************************************************************/
#wrapper {
    margin: 0;
    padding: 20px;
}

#header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#header h1 {
    text-indent: -9999px;
    background: url(../img/logo.svg) no-repeat;
    background-size: auto 30px;
    background-position: left center;
    flex: 0 0 20%;
}

#header .titre   {
    flex: 0 0 40%;
    text-align: center;
}

#header .titre h2  {
    font-size: 220%;
    margin: 0;
}

#header .titre h3  {
    font-size: 120%;
    margin: 0;
}

#header div {
    flex: 0 0 20%;
    text-align: right;
}

#col-wrapper {
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-between;
    width: 96vw;
    margin: 0 auto;
}

.col {
    flex: 0 0 49%;
    padding: 2em;
}

.btn {
    color: white;
    font-weight: 700;
    background: #5B5B5B;
    border-radius: 4px;
    padding: .2em .5em;
    text-align: center;
    /*margin-top: 2em;*/
    border: 0;
    cursor: pointer;
    float: right;
    text-decoration: none;
}

.btn:disabled,
.btn.disabled {
    opacity: .3;
    cursor: not-allowed;
}

.help {
    font-size: 80%;
    color: grey;
    margin-top: .5em;
}

@media screen and (min-device-width: 320px) and (max-width: 768px) {
    body {
        width:100vw;
        overflow-x: hidden;
    }
    #wrapper {
        padding: 0;
    }

    #header {
        flex-wrap: wrap;
        padding: 4px;
    }

    #header h1, #header h2, #header div {
        flex: 0 0 100%
    }

    #header .titre {
        order:1;
        flex: 0 0 100%
    }

    #header h1 {
        order: 0;
        background-size: 100px 30px;
    }

    #header .apropos {
        order: 3;
    }

    #col-wrapper {
        flex-wrap: wrap;
    }

    .col {
        flex: 0 0 100%;
        padding: 20px;
    }

}

/* Typo
********************************************************************************/
h3 {
    color: grey;
    font-size: 150%;
    margin-top: 1em;
}

label {
    font-weight: 700;
    display: block;
    margin-top: .5em;
}

input {
    font-family: "Istok Web", sans-serif;
    width: 100%;
    border: 1px solid silver;
    font-size: 100%;
    padding: 4px;
    border-radius: 4px;
}

input[type=checkbox] {
    width: 1em;
}

/* UI
********************************************************************************/
.sticky {
    position: sticky;
    top: 0;
}

.busy {
    color: white;
    background: var(--rouge);
}

.busy.option {
    background: silver;
}

.error-message {
    color: var(--rouge);
}

/* CALENDRIER
********************************************************************************/

#oCalendar {
    width: 100%;
    border-collapse: collapse;
    border-spacing: 0;
    margin-top: 1em;
}

#oCalendar td:not(.oDays) {
    height: 4em;
    border: 1px solid silver;
    /*cursor: pointer;*/
}

#oCalendar td.busy {
    cursor: not-allowed;
}

#oCalendar th {
    font-size: 200%;
}

#oCalendar td.oDays {
    font-weight: bold;
    text-align: center;
}

.two-cols {
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-between;
}

.two-cols > div {
    flex: 0 0 49%
}

.calendar-month-button {
    text-decoration: none;
}

.legende td.option {
    width: 20px;
    height: 20px;
    margin: 0 10px 0 0;
    background: silver;
}

@media screen and (min-device-width: 320px) and (max-width: 768px) {
    #oCalendar td:not(.oDays) {
        height: 2.5em;
    }
}

/* Contenu
********************************************************************************/
.ok {
    padding: 10vh 0;
    text-align: center;
}

/* Footer
********************************************************************************/
#footer {
    background: silver;
    padding: 20px;
}
/* 404
********************************************************************************/
#error404 {
    width: 80vw;
    height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    margin: 0 auto;
}

#error404 h4 {
    font-size: 200%;
    font-weight: 900;
    color: var(--rouge);
}

#error404 a {
    color: var(--rouge);
}