:root {
    --primary: #6e8efb;
    --secondary: #a777e3;
    --text: #333;
    --white: #ffffff;
    --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    --glass: rgba(255, 255, 255, 0.85);
    --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-gradient);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text);
}

.glassmorphism {
    background: var(--glass);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: var(--shadow);
    width: 100%;
    max-width: 500px;
    padding: 40px;
    text-align: center;
}

header h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.gradient-text {
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 30px;
}

.qa-item {
    text-align: left;
    margin-bottom: 24px;
}

.qa-item label {
    display: block;
    font-weight: 600;
    margin-bottom: 10px;
    color: #444;
}

.qa-item input[type="text"],
.qa-item select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

.qa-item input[type="text"]:focus,
.qa-item select:focus {
    border-color: var(--primary);
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
}

.option-btn {
    padding: 10px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.option-btn:hover, .option-btn.selected {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.submit-btn {
    width: 100%;
    padding: 16px;
    margin-top: 20px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(110, 142, 251, 0.4);
    transition: transform 0.2s;
}

.submit-btn:hover {
    transform: scale(1.02);
}

.reward-box {
    background: #f0f4ff;
    padding: 30px;
    border-radius: 16px;
    margin-top: 20px;
}

.coupon-code {
    font-family: 'Outfit', sans-serif;
    font-size: 1.8rem;
    padding: 15px;
    background: white;
    border: 2px dashed var(--primary);
    border-radius: 8px;
    margin: 20px 0;
    letter-spacing: 2px;
    color: var(--primary);
}

.copy-btn {
    background: var(--primary);
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: 6px;
    cursor: pointer;
}

footer {
    margin-top: 40px;
    font-size: 0.8rem;
    color: #888;
}

.loader {
    padding: 40px;
    font-style: italic;
    color: #666;
}