:root {

    --growth-color: #ff4d6d;
    /* framboosrood */

    --start-color: #ffb347;

}

body {
    font-family: "Segoe UI", Roboto, sans-serif;
    margin: 0;
    padding: 40px;
    min-height: 100vh;

    background: linear-gradient(135deg, #6dd5fa, #2980b9);

    color: #1f2a33;
}


/* centrale layout */

main {
    max-width: 1000px;
    margin: auto;
    display: grid;
    gap: 30px;
}


/* glass panel */

section {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);

    border-radius: 16px;
    padding: 24px;

    border: 1px solid rgba(255, 255, 255, 0.25);

    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.15);
}


/* titels */

h1 {
    text-align: center;
    margin-bottom: 20px;
    color: white;
    font-weight: 600;
}

h2 {
    text-align: center;
    margin-top: 0;
    font-weight: 600;
}


/* sliders */

input[type=range] {
    width: 200px;
}


/* patroon grid */

#patternGrid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.patternBox {
    background: rgba(255, 255, 255, 0.25);
    border-radius: 12px;
    padding: 12px;
}


.patternBlocks {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}


/* blokjes */

.block {
    width: 18px;
    height: 18px;
    border-radius: 4px;
}

.growth {
    background: var(--growth-color);
}

.start {
    background: var(--start-color);
}

/* tabel */

#patternTable {
    border-collapse: collapse;
    width: 100%;
    margin-top: 10px;
}

#patternTable th,
#patternTable td {
    padding: 8px;
    text-align: center;
    border-bottom: 1px solid rgba(0, 0, 0, 0.15);
}


/* grafiek */

canvas {
    background: white;
    border-radius: 10px;
}


/* formule */

#formula {
    font-size: 20px;
    font-weight: 600;
    margin-top: 10px;
}

#aSlider {
    accent-color: var(--growth-color);
}

#bSlider {
    accent-color: var(--start-color);
}

.sliderContainer {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    margin: 20px 0;
    flex-wrap: wrap;
}

#aLabel {
    color: var(--growth-color);
    font-weight: 600;
}

#bLabel {
    color: var(--start-color);
    font-weight: 600;
}

#formula {
    font-family: "JetBrains Mono", monospace;
    font-size: 28px;

    text-align: center;

    font-weight: 600;
    margin-top: 10px;
}

section {
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* formule */

#formula {
    text-align: center;
    font-size: 28px;
    font-weight: 600;
    margin-top: 10px;
    font-family: "JetBrains Mono", monospace;
}

/* kleur van parameters */

#aFormula {
    color: var(--growth-color);
}

#bFormula {
    color: var(--start-color);
}

/* animatie */

@keyframes formulaPulse {

    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.15);
    }

    100% {
        transform: scale(1);
    }

}

.formulaPulse {
    animation: formulaPulse 0.35s ease;
}

@keyframes pulse {

    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.25);
    }

    100% {
        transform: scale(1);
    }

}

.pulse {
    animation: pulse 0.4s ease-in-out;
}

@keyframes numberWrite {

    0% {
        transform: scale(0.6);
        opacity: 0.2;
    }

    60% {
        transform: scale(1.55);
        opacity: 1;
    }

    100% {
        transform: scale(1);
    }

}

.writeEffect {
    animation: numberWrite 0.45s ease;
}