:root {
    --color-red: #C61F24;
    --color-blue: #014A92;
    --color-yellow: #F3D00F;
    --color-black: #211E1F;
    --color-bg-white: #F2F5F1;
    --color-text: #211E1F;
    --font-main: 'Outfit', sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--color-bg-white);
    color: var(--color-text);
    display: flex;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
}

.app-container {
    max-width: 1200px;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

header {
    text-align: center;
    border-bottom: 4px solid var(--color-black);
    padding-bottom: 1.5rem;
}

header h1 {
    font-weight: 600;
    font-size: 2.5rem;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-weight: 300;
    font-size: 1.1rem;
    color: #555;
}

main {
    display: flex;
    flex-wrap: wrap;
    gap: 3rem;
    justify-content: center;
    align-items: flex-start;
}

.canvas-wrapper {
    background: #fff;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    padding: 1rem;
    border: 1px solid #ddd;
    display: flex;
    justify-content: center;
    align-items: center;
}

canvas {
    display: block;
    max-width: 100%;
    height: auto;
}

.controls {
    flex: 1;
    min-width: 300px;
    max-width: 400px;
    background: #fff;
    padding: 2rem;
    border: 4px solid var(--color-black);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.control-group label {
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.control-group input[type="number"] {
    padding: 0.8rem;
    border: 2px solid var(--color-black);
    font-family: var(--font-main);
    font-size: 1rem;
    width: 100%;
}

.toggle-group {
    flex-direction: row;
    align-items: center;
    gap: 1rem;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border: 2px solid var(--color-black);
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: var(--color-black);
    transition: .4s;
}

input:checked + .slider {
    background-color: var(--color-yellow);
}

input:checked + .slider:before {
    transform: translateX(24px);
}

.button-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
}

.btn {
    padding: 1rem;
    font-family: var(--font-main);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    border: 4px solid var(--color-black);
    transition: all 0.2s ease;
    font-size: 1rem;
}

.btn.primary {
    background-color: var(--color-red);
    color: white;
    border-color: var(--color-black);
}

.btn.primary:hover {
    background-color: #a01519;
}

.btn.secondary {
    background-color: var(--color-blue);
    color: white;
}

.btn.secondary:hover {
    background-color: #01366b;
}

.btn.outline {
    background-color: transparent;
    color: var(--color-text);
}

.btn.outline:hover {
    background-color: var(--color-black);
    color: white;
}

footer {
    text-align: center;
    margin-top: auto;
    color: #777;
    font-size: 0.9rem;
}

@media (max-width: 800px) {
    main {
        flex-direction: column;
        align-items: center;
    }
    
    .controls {
        width: 100%;
        max-width: 100%;
    }
}