:root {
    --bg-color: #050510;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --primary: #bb86fc;
    --secondary: #03dac6;
    --text: #ffffff;
    --text-dim: #a0a0a0;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text);
    overflow: hidden; /* Prevent scrolling, canvas is full screen */
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

#canvas-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.ui-container {
    position: relative;
    z-index: 10;
    width: 400px;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

header h1 {
    font-weight: 700;
    font-size: 2rem;
    letter-spacing: -1px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--text-dim);
    font-size: 0.9rem;
    margin-top: 5px;
}

.controls {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-dim);
    font-weight: 500;
}

.select-wrapper {
    position: relative;
}

.select-wrapper::after {
    content: '▼';
    font-size: 0.7rem;
    color: var(--primary);
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

select, textarea {
    width: 100%;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 12px 15px;
    color: var(--text);
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
}

select {
    appearance: none;
    cursor: pointer;
}

textarea {
    resize: none;
    min-height: 100px;
}

select:focus, textarea:focus {
    border-color: var(--primary);
    background: rgba(0, 0, 0, 0.5);
}

button {
    position: relative;
    background: transparent;
    border: none;
    padding: 15px;
    border-radius: 10px;
    cursor: pointer;
    overflow: hidden;
    color: var(--bg-color);
    font-weight: 700;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: transform 0.2s;
}

button span {
    position: relative;
    z-index: 1;
}

.btn-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    z-index: 0;
    transition: opacity 0.3s;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(187, 134, 252, 0.4);
}

button:active {
    transform: translateY(0);
}