:root {
    --primary-color: #4a90e2;
    --secondary-color: #50e3c2;
    --background-color: #f0f2f5;
    --card-background: #ffffff;
    --text-color: #333;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --glow-color: rgba(74, 144, 226, 0.5);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-image: linear-gradient(to right, #ffecd2 0%, #fcb69f 100%);

}

.app-container {
    text-align: center;
    padding: 2rem;
}

.app-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.app-description {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
}

.lotto-card {
    background-color: var(--card-background);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 10px 20px var(--shadow-color), 0 6px 6px var(--shadow-color);
    transition: transform 0.3s ease;
}

.lotto-card:hover {
    transform: translateY(-5px);
}

.lotto-numbers {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.bonus-row {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
    padding: 0.5rem 1rem;
    border-radius: 999px;
    background: #f6f0ff;
}

.bonus-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: #6a4cc3;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.bonus-number {
    display: flex;
    align-items: center;
}

.number-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: #fff;
    background-image: linear-gradient(120deg, #84fab0 0%, #8fd3f4 100%);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transform: scale(0);
    animation: popIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.number-circle.bonus-circle {
    background-image: linear-gradient(120deg, #ffd369 0%, #ff8b5e 100%);
    box-shadow: 0 6px 14px rgba(255, 139, 94, 0.35);
}

@keyframes popIn {
    from {
        transform: scale(0);
    }
    to {
        transform: scale(1);
    }
}

.generate-button {
    font-size: 1.2rem;
    font-weight: 600;
    color: #fff;
    background-color: var(--primary-color);
    border: none;
    padding: 1rem 2.5rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--glow-color);
}

.generate-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--glow-color);
}

.generate-button:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 10px var(--glow-color);
}

.partner-card {
    margin-top: 2rem;
    background-color: var(--card-background);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 10px 20px var(--shadow-color), 0 6px 6px var(--shadow-color);
    text-align: left;
}

.partner-title {
    margin: 0 0 0.5rem;
    font-size: 1.6rem;
    color: var(--primary-color);
}

.partner-description {
    margin: 0 0 1.5rem;
    color: #666;
}

.partner-form {
    display: grid;
    gap: 1rem;
}

.form-field {
    display: grid;
    gap: 0.35rem;
    font-size: 0.95rem;
    color: #555;
}

.form-label {
    font-weight: 600;
}

.partner-form input,
.partner-form textarea {
    border: 1px solid #d8dee6;
    border-radius: 10px;
    padding: 0.75rem 0.9rem;
    font-size: 1rem;
    font-family: inherit;
    background-color: #fff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.partner-form input:focus,
.partner-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.2);
}

.submit-button {
    justify-self: start;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    background-color: #111827;
    border: none;
    padding: 0.85rem 1.8rem;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 8px 18px rgba(17, 24, 39, 0.2);
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 22px rgba(17, 24, 39, 0.28);
}

@media (max-width: 600px) {
    .app-title {
        font-size: 2rem;
    }

    .lotto-card {
        padding: 2rem;
    }

    .number-circle {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }

    .bonus-row {
        padding: 0.4rem 0.8rem;
    }

    .generate-button {
        padding: 0.8rem 2rem;
    }

    .partner-card {
        padding: 2rem;
    }
}