/* Dark Theme Variables */
:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --dark-bg: #0f172a;
    --darker-bg: #020617;
    --card-bg: #1e293b;
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --border: #334155;
    --success: #10b981;
    --warning: #f59e0b;
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
body {
    background-color: var(--dark-bg);
    color: var(--text);
    line-height: 1.6;
}
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
a {
    text-decoration: none;
    color: inherit;
}
.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--primary);
    color: white;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.3s ease;
}
.btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}
section {
    padding: 80px 0;
}
h2 {
    font-size: 32px;
    margin-bottom: 30px;
}

/* Header */
header {
    background-color: var(--darker-bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}
.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}
.nav-links {
    display: flex;
    gap: 30px;
}
.nav-links a {
    font-weight: 500;
    color: var(--text);
    transition: color 0.3s ease;
}
.nav-links a:hover {
    color: var(--primary);
}
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text);
    cursor: pointer;
}

/* Product Intro */
.product-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}
.product-intro p {
    color: var(--text-muted);
    font-size: 18px;
    margin-top: 20px;
}

/* Alert Builder Form */
.alert-builder {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 40px;
    margin-bottom: 40px;
}
.form-section {
    margin-bottom: 40px;
}
.form-section h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 10px;
}
.form-section h3 i {
    font-size: 20px;
}
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}
select, input, textarea {
    width: 100%;
    padding: 12px 15px;
    background-color: var(--darker-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 16px;
}
select:focus, input:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
}
textarea {
    min-height: 100px;
    resize: vertical;
}

/* Premium Feature Box */
.premium-feature-box {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success);
    border-radius: 8px;
    padding: 25px;
    margin: 15px 0;
    animation: fadeIn 0.5s ease-in-out;
}
.premium-feature-box h4 {
    color: var(--success);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
}
.premium-feature-box h4 i {
    font-size: 20px;
}
.premium-feature-box p {
    color: var(--text);
    margin: 0;
    font-size: 14px;
    line-height: 1.5;
}

/* Plan Options */
.plan-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}
.plan-option {
    background-color: var(--darker-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
}
.plan-option:hover {
    border-color: var(--primary);
}
.plan-option.active {
    background-color: rgba(59, 130, 246, 0.1);
    border: 2px solid var(--primary);
}
.plan-option h4 {
    font-size: 20px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
}
.plan-option .price {
    color: var(--primary);
}
.plan-option ul {
    list-style-type: none;
    margin-top: 15px;
}
.plan-option li {
    margin-bottom: 8px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}
.plan-option li i {
    color: var(--success);
    font-size: 14px;
    margin-top: 3px;
}

/* Catalyst Options */
.catalyst-options {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
    margin-top: 15px;
}
.catalyst-option {
    background-color: var(--darker-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
}
.catalyst-option:hover {
    border-color: var(--primary);
}
.catalyst-option.active {
    background-color: rgba(59, 130, 246, 0.1);
    border-color: var(--primary);
}
.catalyst-option h4 {
    margin-bottom: 5px;
    font-size: 16px;
}
.catalyst-option p {
    font-size: 14px;
    color: var(--text-muted);
}
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--text-muted);
    padding: 20px;
}

/* Account Creation */
.account-creation {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 40px;
    margin-top: 40px;
}
.account-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.form-note {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 20px;
}

/* Footer */
footer {
    background-color: var(--darker-bg);
    border-top: 1px solid var(--border);
}
.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    padding: 50px 0;
}
.footer-logo {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--primary);
}
.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-links a:hover {
    color: var(--primary);
}
.social-links {
    display: flex;
    gap: 15px;
}
.social-links a {
    font-size: 20px;
    transition: color 0.3s ease;
}
.social-links a:hover {
    color: var(--primary);
}
.copyright {
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 14px;
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--card-bg);
        padding: 20px;
        border-top: 1px solid var(--border);
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
    }
    .nav-links.active {
        display: flex;
    }
    .mobile-menu-btn {
        display: block;
    }
    section {
        padding: 60px 0;
    }
    .alert-builder, .account-creation {
        padding: 30px 20px;
    }
    .plan-options {
        grid-template-columns: 1fr;
    }
    .catalyst-options {
        grid-template-columns: 1fr;
    }
}

/* Premium Plan Feature Box */
.premium-plan-feature-box {
    grid-column: 1 / -1;
    background-color: rgba(59, 130, 246, 0.1);
    border: 1px solid var(--primary);
    border-radius: 8px;
    padding: 25px;
    margin-top: -15px;
    margin-bottom: 20px;
    animation: fadeIn 0.3s ease-out;
}

.premium-plan-feature-box h4 {
    color: var(--primary);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.premium-plan-feature-box p {
    margin-bottom: 10px;
    line-height: 1.6;
}

.premium-plan-feature-box p:last-child {
    margin-bottom: 0;
}