/* =====================================================
   MISTUDIA ENGLISH TENSE TRAINER
===================================================== */

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

body{

    font-family:Arial,Helvetica,sans-serif;
    background:#f5f6fa;
    color:#222;

}

.container{

    width:96%;
    max-width:1800px;
    margin:25px auto;

}

h1{

    text-align:center;
    margin-bottom:25px;
    color:#17365D;

}

h2{

    margin-bottom:15px;

}

#filter{

    background:white;

    border-radius:8px;

    padding:20px;

    margin-bottom:25px;

    box-shadow:0 3px 10px rgba(0,0,0,.12);

}

#tenseSelection{

    display:grid;

    grid-template-columns:repeat(auto-fill,minmax(260px,1fr));

    gap:8px;

    margin-bottom:20px;

}

#tenseSelection label{

    display:flex;

    align-items:center;

    gap:10px;

}

.filterButtons,
.exerciseButtons{

    display:flex;

    gap:15px;

    flex-wrap:wrap;

    margin-top:15px;

}

button{

    padding:10px 18px;

    border:none;

    border-radius:6px;

    background:#1976D2;

    color:white;

    cursor:pointer;

    font-size:15px;

}

button:hover{

    background:#125EA8;

}

.tableWrapper{

    overflow:auto;

    border:1px solid #bbb;

    background:white;

    border-radius:8px;

    box-shadow:0 4px 12px rgba(0,0,0,.15);

}

table{

    border-collapse:collapse;

    width:100%;

    min-width:1600px;

}

thead th{

    position:sticky;

    top:0;

    z-index:5;

    background:#FFFF00;

    border:1px solid #999;

    padding:10px;

    text-align:center;

}

tbody td{

    border:1px solid #ccc;

    padding:6px;

    text-align:center;

    background:white;

}

tbody td:first-child{

    position:sticky;

    left:0;

    background:#FFF2CC;

    z-index:4;

    text-align:left;

    font-weight:bold;

    min-width:220px;

}

input{

    width:120px;

    padding:6px;

    text-align:center;

    border:1px solid #999;

    border-radius:4px;

}

select{

    width:130px;

    padding:6px;

}

.correct{

    background:#C6EFCE !important;

    border:2px solid #2E7D32 !important;

}

.wrong{

    background:#FFC7CE !important;

    border:2px solid #C62828 !important;

}

.solution{

    display:block;

    margin-top:3px;

    font-size:11px;

    color:#0B8043;

    font-weight:bold;

}

#statistics{

    margin-top:25px;

    padding:20px;

    background:white;

    border-radius:8px;

    box-shadow:0 3px 10px rgba(0,0,0,.12);

}

#statistics p{

    margin:8px 0;

    font-size:18px;

}

#score,
#percent{

    font-weight:bold;

}

@media(max-width:900px){

    input{

        width:90px;

    }

}

.languageSelection{

    display:flex;
    align-items:center;
    gap:10px;

    margin-bottom:20px;

}

.languageSelection label{

    font-weight:bold;

}

.languageSelection select{

    min-width:180px;

    padding:8px 32px 8px 10px;

    border:1px solid #999;

    border-radius:4px;

    background:white;

    font-size:15px;

    cursor:pointer;

}


.tenseDropdown{
    position:relative;
    display:inline-block;
    min-width:300px;
}

.tenseDropdownBtn{
    width:100%;
    text-align:left;
    background:white;
    color:#222;
    border:1px solid #999;
    border-radius:4px;
}

.tenseDropdownBtn:hover{
    background:#f2f2f2;
}

.tenseDropdownMenu{
    display:none;
    position:absolute;
    top:100%;
    left:0;
    z-index:100;

    width:380px;
    max-height:500px;
    overflow-y:auto;

    padding:15px;

    background:white;
    border:1px solid #999;

    box-shadow:0 5px 15px rgba(0,0,0,.2);
}

.tenseDropdownMenu.open{
    display:block;
}

#tenseSelection{
    display:block;
    margin-bottom:15px;
}

#tenseSelection label{
    display:flex;
    align-items:center;
    gap:10px;
    padding:6px 4px;
}

.dropdownActions{
    display:flex;
    flex-wrap:wrap;
    gap:6px;
    padding-top:10px;
    border-top:1px solid #ddd;
}

.dropdownActions button{
    padding:6px 10px;
    font-size:13px;
}

#tenseTable tbody tr:not(:first-child) td:first-child {
    background: #FFFF00;
}

#tenseTable thead th {
    background: #4FADEA;
}

#tenseTable thead th:first-child {
    background: #FFFF00;
    color: #000000;
}

.pageHeader {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-bottom: 25px;
}

.mistudiaLogo {
    width: 260px;
    height: auto;
    display: block;
}

.pageHeader h1 {
    flex: 1;
    margin: 0;
    text-align: center;
}

/* =====================================================
   STICKY FIRST COLUMN
===================================================== */

#tenseTable thead th:first-child,
#tenseTable tbody td:first-child {
    position: sticky;
    left: 0;
}

/* Tense oben links */

#tenseTable thead th:first-child {
    background: #FFFF00;
    color: #000000;
    z-index: 20;
}

/* Zeitformen links */

#tenseTable tbody tr:not(:first-child) td:first-child {
    background: #FFFF00;
    z-index: 10;
}

/* Infinitive links */

#tenseTable tbody tr:first-child td:first-child {
    background: #FFF2CC;
    z-index: 10;
}


/* =====================================================
   VERB OPTIONS
===================================================== */

.verbOptions {
    display: flex;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 20px;
    margin: 25px 0;
}

.optionGroup {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.optionGroup label {
    font-weight: bold;
}

.optionGroup select {
    width: auto;
    min-width: 180px;
}

.verbChooser {
    position: relative;
}

.verbDropdownBtn {
    min-width: 220px;
    text-align: left;
    background: white;
    color: #222;
    border: 1px solid #999;
}

.verbDropdownBtn:hover {
    background: #f2f2f2;
}

.verbDropdownMenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 150;

    width: 320px;
    max-height: 450px;
    overflow-y: auto;

    padding: 15px;

    background: white;
    border: 1px solid #999;
    box-shadow: 0 5px 15px rgba(0,0,0,.2);
}

.verbDropdownMenu.open {
    display: block;
}

#verbSearch {
    width: 100%;
    margin-bottom: 10px;
    text-align: left;
}

#verbSelection label {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px;
}


.topArea {
    background: #FFFF00;
    padding: 20px;
    margin-bottom: 25px;
    border-radius: 8px;
}