:root {
    --primary: #00f2ea; /* Cyan Neon */
    --secondary: #ff0055; /* Magenta Neon */
    --bg-dark: #050510;
    --card-bg: rgba(255, 255, 255, 0.05);
    --text-main: #ffffff;
    --text-muted: #a0a0b0;
    --font-family: 'Outfit', sans-serif;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-family);
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Background Effects */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: moveOrb 15s infinite alternate ease-in-out;
}

.orb-1 {
    width: 300px;
    height: 300px;
    background: var(--primary);
    top: -50px;
    left: -50px;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--secondary);
    bottom: -100px;
    right: -100px;
    animation-delay: -5s;
}

@keyframes moveOrb {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 50px) scale(1.1); }
}

/* Header */
.header {
    text-align: center;
    margin-top: 40px;
    margin-bottom: 20px;
    animation: fadeInDown 1s ease;
}

.logo {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: 2px;
}

.highlight {
    color: var(--primary);
    text-shadow: 0 0 15px var(--primary);
}

.tagline {
    color: var(--text-muted);
    font-weight: 300;
    margin-top: 5px;
}

/* Main Container */
.container {
    width: 100%;
    max-width: 600px; /* BioSite width */
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 25px;
    padding-bottom: 60px;
}

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 25px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    animation: fadeInUp 0.5s ease backwards;
}

.card:nth-child(1) { animation-delay: 0.1s; }
.card:nth-child(2) { animation-delay: 0.2s; }
.card:nth-child(3) { animation-delay: 0.3s; }
.card:nth-child(4) { animation-delay: 0.4s; }

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 242, 234, 0.4);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* Featured Card Style */
.card.featured {
    border-color: rgba(0, 242, 234, 0.5);
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(0,242,234,0.05) 100%);
}

.card-header {
    text-align: center;
    margin-bottom: 20px;
    position: relative;
}

.card h3 {
    font-size: 1.2rem;
    color: var(--text-muted);
    letter-spacing: 1px;
    margin-bottom: 10px;
}

.price-display {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
}

.currency {
    font-size: 1.5rem;
    font-weight: 600;
}

.value {
    font-size: 3.5rem;
    font-weight: 800;
    color: #fff;
    text-shadow: 0 0 20px rgba(255,255,255,0.2);
}

.period {
    font-size: 1rem;
    color: var(--text-muted);
}

.badge {
    position: absolute;
    top: -15px;
    right: -15px;
    background: var(--secondary);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.glow-badge {
    background: var(--primary);
    color: #000;
    box-shadow: 0 0 10px var(--primary);
}

/* Card Body */
.card-body ul {
    list-style: none;
    margin-bottom: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
}

.card-body li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
}

.card-body li i {
    color: var(--primary);
}

.card-body li strong {
    color: var(--primary);
}

/* Options */
.options {
    background: rgba(0,0,0,0.2);
    border-radius: 12px;
    padding: 15px;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.static-option {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

/* Toggles */
.toggle-option {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
    justify-content: space-between;
}

.slider {
    position: relative;
    width: 40px;
    height: 20px;
    background-color: #333;
    border-radius: 20px;
    transition: .4s;
    margin-right: 10px;
}

.slider::before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 2px;
    bottom: 2px;
    background-color: white;
    border-radius: 50%;
    transition: .4s;
}

input:checked + .slider {
    background-color: var(--secondary);
}

input:checked + .slider::before {
    transform: translateX(20px);
}

.label-text {
    flex: 1;
    font-size: 0.9rem;
}

/* Input checkbox hidden */
.toggle-option input {
    display: none;
}

/* Button */
.btn-select {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 50px;
    background: linear-gradient(90deg, var(--primary), #00c2c7);
    color: #000;
    font-weight: 800;
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-select:hover {
    transform: scale(1.02);
    box-shadow: 0 0 20px rgba(0, 242, 234, 0.4);
}

/* Footer */
.footer {
    padding: 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: auto;
}

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

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Media Queries for Mobile Responsiveness */
@media (max-width: 480px) {
    .container {
        padding: 15px;
    }
    
    .value {
        font-size: 3rem;
    }
    
    .logo {
        font-size: 2rem;
    }
}