@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&display=swap');

:root {
    --color-primary: #5A67D8;
    --color-secondary: #9F7AEA;
    --color-danger: #E53E3E;
    --color-success: #38A169;
    --color-background: #1A202C;
    --color-surface: #2D3748;
    --color-text-primary: #EDF2F7;
    --color-text-secondary: #A0AEC0;
    --color-border: #4A5568;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--color-background);
    color: var(--color-text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}

.container {
    background-color: var(--color-surface);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    width: 100%;
    max-width: 600px;
    text-align: center;
}

h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 30px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.input-section {
    background-color: rgba(0,0,0,0.2);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 25px;
    text-align: left;
}

.input-group {
    margin-bottom: 20px;
}

label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
}

input[type="text"], select {
    width: 100%;
    padding: 12px 15px;
    font-size: 1rem;
    border-radius: 8px;
    border: 2px solid var(--color-border);
    background-color: var(--color-background);
    color: var(--color-text-primary);
    box-sizing: border-box;
    transition: border-color 0.3s;
}

input[type="text"]:focus, select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.error-message {
    color: var(--color-danger);
    font-size: 0.9rem;
    margin-top: 10px;
    font-weight: 600;
    display: none;
}

.ai-filters {
    background-color: rgba(0,0,0,0.2);
    border: none;
}

.filter-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    font-size: 0.9rem;
}

.filter-options label {
    display: flex;
    align-items: center;
    background-color: var(--color-surface);
    padding: 10px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.filter-options label:hover {
    background-color: #3e4a5e;
}

input[type="checkbox"] {
    margin-right: 10px;
}

.filter-info {
    margin-top: 20px;
    padding: 15px;
    border-radius: 8px;
    background-color: rgba(0,0,0,0.3);
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    text-align: left;
}
.filter-info ul {
    padding-left: 20px;
    margin: 0;
}

button#generateBtn {
    width: 100%;
    padding: 15px;
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.3s;
    margin-top: 20px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.4);
}

button#generateBtn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(90, 103, 216, 0.5);
}

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

.result-group {
    margin-top: 30px;
    max-height: 400px;
    overflow-y: auto;
    padding-right: 10px;
}

.game-row {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    background-color: rgba(0,0,0,0.2);
    padding: 10px;
    border-radius: 10px;
}
.game-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    min-width: 40px;
    text-align: center;
}

.numbers {
    display: flex;
    flex-grow: 1;
    justify-content: center;
    gap: 10px;
}

.ball {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0,0,0,0.4), inset 0 -4px 6px rgba(0,0,0,0.3);
}
.ball::before {
    content: '';
    position: absolute;
    top: 5%;
    left: 10%;
    width: 80%;
    height: 80%;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.6), rgba(255,255,255,0.1));
}

/* Responsive */
@media (max-width: 480px) {
    .container {
        padding: 20px;
    }
    h2 {
        font-size: 1.5rem;
    }
    .filter-options {
        grid-template-columns: 1fr;
    }
    .ball {
        width: 38px;
        height: 38px;
        font-size: 1rem;
    }
}