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

body{
    background: #f5f0e8;
    font-family: 'IBM Plex Mono' , monospace;
    min-height: 100vh;
    color: #1a1208;
    overflow-x: hidden;
    background-image: repeating-linear-gradient(transparent, transparent 31px, #c9bfa355 31px, #c9bfa355 32px);
}

.page{
    max-width: 640px;
    margin: 0 auto;
    padding: 44px 2px 8px 80px;
}

h1{
    font-family: 'Playfair Display', serif;
    font-size: 36px;
    font-weight: 700;
    border-bottom: 2px solid #1a1208;
    padding-bottom: 10px;
    margin-bottom: 28px;

}

h1 em{
    font-style: italic;
    color: #c0392b;
}

.label{
    font-size: 9px;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: #8c7e60;
    margin-bottom: 8px;
}

.degs{
    display: flex;
    border: 1.5px solid #1a1208;
    width: fit-content;
    margin-bottom: 24px;
}

.degs button{
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    border-right: 1px solid #1a1208;
    font-family: 'Playfair Display', serif;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: background .1s;
}

.degs button:last-child{
    border-right: none;
}

.degs button.on{
    background: #1a1208;
    color: #f5f0e8;
}

.eq{
    background: #ede8dc;
    border-left: 4px solid #1a1208;
    padding: 12px 18px;
    margin-bottom: 24px;
    font-family: 'Playfair Display', serif;
    font-style: italic;
    min-height: 48px;
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.eq .c{
    color: #c0392b;
    font-style: normal;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 14px;
}

.eq .op{
    color: #8c7e60;
    font-style: normal;
    font-size: 13px;
    margin: 0 2px;
}

#fields{
    display: grid;
    grid-template-columns: repeat(auto-fill);
    gap: 12px 16px;
    margin-bottom: 22px;
}

.field label{
        display: block;
        font-size: 10px;
        color: #8c7e60;
        letter-spacing: .08em;
        margin-bottom: 4px;
}

.field label span{color: #1a4a7a;}

.field input{
    width: 100%;
    background: none;
    border: none;
    border-bottom: 1.5px solid #3d3520;
    padding: 5px 3px;
    font-family: 'IBM Plex Mono', monospace; 
    font-size: 15px; 
    outline: none; 
    transition: border-color .15s;

}

.field input:focus{ border-bottom-color: #c0392b; }
 
button.go{ 
    padding: 11px 26px; 
    background: #1a1208; 
    color: #f5f0e8; 
    border: none;
    font-family: 'IBM Plex Mono', monospace; 
    font-size: 11px; 
    letter-spacing: .14em; 
    text-transform: uppercase; 
    cursor: pointer; 
}
.err{ 
     font-size: 12px; 
     color: #c0392b; 
     margin-top: 8px; 
     display: none; 
}
 
#out{ 
     margin-top: 36px; 
     border-top: 2px solid #1a1208; 
     padding-top: 24px; 
     display: none; 
}

#out table{ 
            width: 100%; 
            border-collapse: collapse; 
            margin-bottom: 20px; 
}
  #out tr{ 
    border-bottom: 1px solid #c9bfa3; 
    animation: up .3s ease both; 
}

#out td { padding: 11px 5px; }

#out td:first-child{ 
    font-family: 'Playfair Display', 
    serif; font-style: italic; 
    color: #8c7e60; 
    width: 48px; 
}

#out td:nth-child(2){ 
    font-family: 'Playfair Display', serif; 
    font-size: 18px; 
    font-weight: 700; 
}

#out td:last-child{ 
    text-align: right; 
    font-size: 9px; 
    letter-spacing: .14em; 
    text-transform: capitalize; 
    color: #8c7e60; 
}

.real { color: #1a1208; } 
.cplx { color: #1a4a7a; } 
.rep { color: #c0392b; }
 
.stats{ 
    display: flex; 
    border: 1.5px solid #1a1208; 
    width: fit-content; 
}
 
.stat{ 
    padding: 10px 18px; 
    border-right: 1px solid #1a1208; 
    text-align: center; 
    min-width: 72px;
}

.stat:last-child{ border-right: none; }

.stat b{ 
    display: block; 
    font-family: 'Playfair Display', serif; 
    font-size: 24px; font-weight: 700; 
    line-height: 1; 
}

.stat span{ 
    font-size: 9px; 
    color: #8c7e60; 
    letter-spacing: .1em; 
    text-transform: capitalize;
}
 
@keyframes up { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: none; } }

body.dark{ 
    background: #1a1208; 
    color: #f5f0e8; 
    background-image: repeating-linear-gradient(transparent, transparent 31px, #ffffff11 31px, #ffffff11 32px); 
}
body.dark h1 { border-bottom-color: #f5f0e8; }

body.dark .eq { 
    background: #2a1f0e; 
    border-left-color: #f5f0e8; 
    color: #f0e8d8; 
}

body.dark .degs { border-color: #f5f0e8; }

body.dark .degs button{ 
    border-right-color: #f5f0e8; 
    color: #f5f0e8;
}

body.dark .degs button.on {
     background: #f5f0e8; 
     color: #1a1208; 
}

body.dark .field input {
     border-bottom-color: #f5f0e8; 
     color: #f5f0e8; 
}

body.dark .go { 
    background: #f5f0e8; 
    color: #1a1208; 
}