@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;600;800&display=swap');

:root {
    --bg-dark: #05070a;
    --card-glass: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --primary-glow: #0066ff;
    --primary-accent: #2980b9;
    --text-main: #ffffff;
    --text-muted: #a0aab5;
    --gradient-blue: linear-gradient(135deg, #0066ff 0%, #5dade2 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Montserrat', sans-serif;
}

body {
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(0, 102, 255, 0.08) 0%, transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(41, 128, 185, 0.05) 0%, transparent 25%);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-x: hidden;
}

header {
    width: 100%;
    height: 90px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(5, 7, 10, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: fixed;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--card-border);
}

.logo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.1);
    box-shadow: 0 0 20px rgba(0, 102, 255, 0.2);
    object-fit: cover;
}

main {
    width: 100%;
    max-width: 1280px;
    padding: 120px 20px 60px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.intro-slogan {
    text-align: center;
    margin: 0 0 50px 0;
    width: 100%;
    animation: fadeInDown 1s ease-out;
    position: relative;
}

.intro-slogan span {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 6px;
    background: linear-gradient(90deg, #555555, #ffffff, #555555);
    background-size: 200% auto;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0.9;
    padding: 10px 20px;
    border-radius: 50px;
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid rgba(255, 255, 255, 0.03);
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.5);
}

.vip-showcase {
    width: 100%;
    margin-bottom: 80px;
}

.cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
    width: 100%;
}

.vip-card {
    background: var(--card-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 35px;
    display: flex;
    flex-direction: column;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.vip-card:hover {
    transform: translateY(-7px);
    border-color: rgba(0, 102, 255, 0.3);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4), 
                0 0 30px rgba(0, 102, 255, 0.1);
}

.vip-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-blue);
    opacity: 0.5;
    transition: opacity 0.3s;
}

.vip-card:hover::before {
    opacity: 1;
    box-shadow: 0 0 15px var(--primary-glow);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.icon-box {
    width: 50px;
    height: 50px;
    background: rgba(0, 102, 255, 0.1);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid rgba(0, 102, 255, 0.2);
}

.icon-box i {
    font-size: 1.5rem;
    color: #4da6ff;
    filter: drop-shadow(0 0 5px rgba(0, 102, 255, 0.5));
}

.multi-icons {
    display: flex;
    gap: 2px;
}

.multi-icons i {
    font-size: 0.8rem;
}

.card-header h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: 0.5px;
}

.vip-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 30px;
    flex-grow: 1;
    font-weight: 400;
}

.card-stats {
    background: rgba(255, 255, 255, 0.03);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: #ffffff;
    padding: 15px;
    margin: 0 -35px 25px -35px;
    text-align: center;
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.stat-highlight {
    color: #4da6ff;
    font-weight: 800;
}

.card-btn {
    width: 100%;
    padding: 14px;
    border-radius: 12px;
    background: transparent;
    border: 1px solid rgba(0, 102, 255, 0.5);
    color: #ffffff;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.card-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0%;
    height: 100%;
    background: var(--gradient-blue);
    z-index: -1;
    transition: width 0.3s ease;
}

.vip-card:hover .card-btn {
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.3);
}

.vip-card:hover .card-btn::after {
    width: 100%;
}

.hero-text {
    max-width: 900px;
    text-align: center;
    margin: 40px 0 80px 0;
}

.hero-text h1 {
    font-size: 2.8rem;
    margin-bottom: 25px;
    background: linear-gradient(90deg, #ffffff, #a0aab5);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-transform: uppercase;
    font-weight: 800;
    letter-spacing: 2px;
}

.hero-text p {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 20px;
}

.quiz-container {
    width: 100%;
    display: flex;
    justify-content: center;
}

.quiz-content {
    background: rgba(10, 15, 20, 0.8);
    backdrop-filter: blur(20px);
    padding: 50px;
    border: 1px solid var(--card-border);
    border-radius: 24px;
    width: 100%;
    max-width: 650px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    position: relative;
}

.quiz-content::before {
    content: '';
    position: absolute;
    top: -2px; left: -2px; right: -2px; bottom: -2px;
    background: linear-gradient(45deg, transparent, rgba(0,102,255,0.3), transparent);
    z-index: -1;
    border-radius: 26px;
    filter: blur(10px);
}

.step h3 {
    text-align: center;
    margin-bottom: 10px;
    font-size: 1.6rem;
    color: white;
}

.subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 35px;
}

.options-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.checkbox-option, .radio-option {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
    user-select: none;
    color: var(--text-muted);
}

.checkbox-option:hover, .radio-option:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
    color: white;
}

.checkbox-option input, .radio-option input {
    display: none;
}

.custom-check, .custom-radio {
    width: 22px;
    height: 22px;
    border: 2px solid #555;
    border-radius: 6px;
    margin-right: 15px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.custom-radio { border-radius: 50%; }

.checkbox-option:has(input:checked),
.radio-option:has(input:checked) {
    border-color: #0066ff;
    background: rgba(0, 102, 255, 0.05);
    color: white;
    box-shadow: 0 0 15px rgba(0, 102, 255, 0.1);
}

.checkbox-option input:checked + .custom-check,
.radio-option input:checked + .custom-radio {
    border-color: #0066ff;
    background: #0066ff;
    box-shadow: 0 0 10px rgba(0, 102, 255, 0.6);
}

.checkbox-option input:checked + .custom-check::after {
    content: '\2714';
    font-size: 12px;
    color: white;
}

.radio-option input:checked + .custom-radio::after {
    content: '';
    width: 8px;
    height: 8px;
    background-color: white;
    border-radius: 50%;
}

.special-option {
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.quiz-footer button {
    margin-top: 25px;
    background: var(--gradient-blue);
    color: white;
    border: none;
    padding: 16px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    width: 100%;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    box-shadow: 0 5px 20px rgba(0, 102, 255, 0.3);
    transition: transform 0.2s;
}

.quiz-footer button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 102, 255, 0.5);
}

.step.hidden { display: none; }
.hint { opacity: 0; color: var(--text-muted); font-size: 0.8rem; margin-bottom: 5px; transition: 0.3s; }
.hint.active { opacity: 1; }

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    header {
        height: 70px;
    }

    .hero-text h1 {
        font-size: 1.8rem;
    }

    main {
        padding-top: 100px;
        padding-left: 15px;
        padding-right: 15px;
    }

    .intro-slogan span {
        font-size: 0.7rem;
        letter-spacing: 3px;
        margin-bottom: 10px;
    }

    .vip-card {
        text-align: center;
    }

    .card-header {
        justify-content: center;
        flex-direction: column;
    }

    .card-stats {
        margin: 0 -20px 20px -20px;
    }

    .quiz-content {
        padding: 30px 20px;
        border-radius: 24px;
        overflow: hidden;
        width: 100%;
    }

    .quiz-content::before {
        border-radius: 24px;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
    }

    .step h3 {
        font-size: 1.3rem;
        margin-bottom: 20px;
    }

    .subtitle {
        margin-bottom: 25px;
        font-size: 0.85rem;
    }

    .options-group {
        gap: 10px;
    }

    .checkbox-option, .radio-option {
        padding: 14px 15px;
        font-size: 0.9rem;
        border-radius: 12px;
    }

    .custom-check, .custom-radio {
        margin-right: 12px;
        width: 20px;
        height: 20px;
        min-width: 20px;
    }

    .quiz-footer button {
        margin-top: 20px;
        padding: 14px;
        font-size: 0.9rem;
    }
}