:root {
    --bg-color: #0a0a12;
    --card-bg: #161622;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --accent-green: #00ff88;
    --accent-blue: #2d8cf0;
    --border-color: #2a2a35;
    --gradient-main: linear-gradient(135deg, #00ff88 0%, #2d8cf0 100%);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background: rgba(10, 10, 18, 0.95);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.highlight {
    color: var(--accent-green);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--accent-green);
}

/* Buttons */
.btn-primary {
    background: var(--accent-green);
    color: #000;
    padding: 10px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 255, 136, 0.3);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
}

.btn-secondary:hover {
    border-color: var(--text-primary);
}

/* Hero Section */
.hero {
    padding: 100px 0 80px;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
}

.gradient-text {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
}

.hero-btns {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 60px;
}

.stats-preview {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 40px;
    border-top: 1px solid var(--border-color);
    padding-top: 40px;
}

.stat-box {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-blue);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Features */
.features {
    padding: 80px 0;
    background: var(--card-bg);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--bg-color);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
}

.feature-card .icon {
    font-size: 2rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 10px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Pricing */
.pricing {
    padding: 100px 0;
}

.pricing h2 {
    text-align: center;
    margin-bottom: 60px;
    font-size: 2.5rem;
}

.pricing-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.pricing-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    width: 350px;
    text-align: center;
    position: relative;
}

.pricing-card.popular {
    border: 1px solid var(--accent-green);
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.1);
}

.badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-green);
    color: #000;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
}

.price {
    font-size: 3rem;
    font-weight: 700;
    margin: 20px 0 10px;
}

.price span {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.savings {
    color: var(--accent-green);
    font-size: 0.9rem;
    margin-bottom: 30px;
}

.features-list {
    list-style: none;
    margin-bottom: 40px;
    text-align: left;
}

.features-list li {
    margin-bottom: 15px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
}

.features-list li::before {
    content: "✓";
    color: var(--accent-green);
    margin-right: 10px;
    font-weight: bold;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--text-secondary);
    color: var(--text-primary);
    padding: 12px 100%;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

.btn-outline:hover {
    border-color: var(--text-primary);
}

/* Signup Form */
.signup-section {
    padding: 100px 0;
    background: var(--card-bg);
}

.form-container {
    max-width: 500px;
    margin: 0 auto;
    background: var(--bg-color);
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.form-container h2 {
    margin-bottom: 10px;
    text-align: center;
}

.form-container p {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 24px;
}

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

.form-group input {
    width: 100%;
    padding: 12px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.plan-selector {
    display: flex;
    gap: 10px;
}

.radio-option {
    flex: 1;
    border: 1px solid var(--border-color);
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.2s;
}

.radio-option:hover {
    background: var(--card-bg);
}

.radio-option.selected {
    border-color: var(--accent-green);
    background: rgba(0, 255, 136, 0.05);
}

.radio-circle {
    width: 16px;
    height: 16px;
    border: 2px solid var(--text-secondary);
    border-radius: 50%;
}

.radio-option.selected .radio-circle {
    border-color: var(--accent-green);
    background: var(--accent-green);
}

.payment-methods {
    display: flex;
    gap: 10px;
}

.pay-btn {
    flex: 1;
    padding: 12px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s;
}

.pay-btn:hover {
    border-color: var(--accent-blue);
}

.pay-btn.selected {
    border-color: var(--accent-blue);
    background: rgba(45, 140, 240, 0.1);
}

.btn-submit {
    width: 100%;
    padding: 14px;
    background: var(--gradient-main);
    border: none;
    border-radius: 8px;
    color: #000;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    margin-top: 10px;
}

/* Hidden/Success States */
.hidden {
    display: none;
}

.success-message {
    text-align: center;
    animation: fadeIn 0.5s ease;
}

.key-box {
    background: #000;
    padding: 15px;
    border-radius: 8px;
    margin: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--border-color);
}

.key-box code {
    font-family: monospace;
    color: var(--accent-green);
    font-size: 1.1rem;
}

.key-box button {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 4px 10px;
    border-radius: 4px;
    cursor: pointer;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .nav-links { display: none; } /* Simplified mobile nav for now */
    .pricing-grid { flex-direction: column; align-items: center; }
}