:root {
    --background-color: #1A1A1A;
    --second-background-color: #2D2D2D;
    --second-background-color-opacity: rgba(45, 45, 45, 1);
    --second-background-color-opacity: rgba(32, 41, 56, 1);
    --text-color: #FFFFFF;
    --hint-color: #9DA1AC;
    --primary-color: #7C2629;
    --button-color: #F18A50;
    --button-color-opacity: rgba(241, 138, 80, 0.5);
    --primary-color-opacity: rgba(124, 38, 41, 0.5);

    --positive-color: #00FF00;
    --negative-color: #FF0000;
} 

* {
    margin: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
    color: var(--text-color);

    transition: all 0.2s ease-in-out;
    -webkit-tap-highlight-color: transparent;
}

body {
    padding: 20px;
    background-color: var(--background-color);
/* 
    background-image: url('/static/images/background-blur.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed; */
    
    /* background-repeat: repeat-x; */
    /* background-size: 400% 400%; */
    /* background-blend-mode: darken; */
    /* backdrop-filter: blur(5px); */

    height: 100vh;
}

button {
    background-color: var(--button-color);
    color: var(--text-color);
    border: none;
    border-radius: 10px;
    padding: 5px 25px;
    font-size: 15px;
    cursor: pointer;

    width: 100%;
}

button:disabled {
    opacity: 0.5;
}

button:enabled:active {
    transform: scale(0.95);
}

.input-field {
    background-color: var(--second-background-color);
    border: none;
    border-radius: 10px;
    padding: 5px 10px;
    font-size: 15px;
    color: var(--text-color);
    height: 45px;

    display: flex;
    align-items: center;

    gap: 15px
}

input {
    background-color: var(--second-background-color-opacity);
    border: 1px solid var(--second-background-color-opacity);

    border-radius: 10px;
    font-size: 15px;
    color: var(--text-color);
    height: 100%;
    width: 100%;
    padding: 15px;

    outline: none;
}

input:focus {
    border: 1px solid var(--primary-color);
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* consturctor */
.row {
    display: flex;
    flex-direction: row;
}

.column {
    display: flex;
    flex-direction: column;
}

.space-around {
    display: flex;
    justify-content: space-around;
}

.space-between {
    display: flex;
    justify-content: space-between;
}

.space-evenly {
    display: flex;
    justify-content: space-evenly;
}

/* texts */
.page-title {
    font-size: 25px;
    font-weight: normal;
}

.param-subtitle {
    font-size: 20px;
    color: var(--hint-color);
}

.subtitle {
    font-size: 14px;
    color: var(--hint-color)
}

.param-title {
    font-size: 22px;
    font-weight: normal;
}

/* custom blocks */
.bottom-bar {
    display: flex;

    position: sticky;

    bottom: 0;
    right: 0;
    left: 0;
    width: 100%;

    background-color: var(--second-background-color);
    padding: 15px;
    border-radius: 15px;

    justify-content: space-around;

    background: rgba(31, 31, 31, 0.75);    
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.bottom-bar svg {
    width: 40px;
}

.spinner {
    width: 30px;
    height: 30px;

    border-radius: 100%;

    border: 2px solid var(--text-color);
    border-top-color: var(--second-background-color);
    
    animation: spin 1s linear infinite;
}

.divider {
    width: 100%;
    height: 1px;

    margin: 10px 0;

    background-color: var(--primary-color-opacity);   
}

.block {
    padding: 15px;
    border-radius: 15px;
    background-color: var(--second-background-color-opacity);
    border: 1px solid var(--second-background-color);
}

.block.accent {
    background-color: var(--primary-color-opacity);
    border: 1px solid var(--primary-color);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.title {
    font-family: 'Montserrat', sans-serif;
}

.popup {
    position: fixed;
    bottom: -100%;
    left: 0;
    right: 0;
    height: 50%;
    background-color: var(--second-background-color);
    color: white;
    padding: 20px;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;

    border-top-left-radius: 10px;
    border-top-right-radius: 10px;

    border-bottom-left-radius: 0px;
    border-bottom-right-radius: 0px;

    overflow: scroll;
}
.popup-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-align: center;
}