/* Modern & Professional Design System */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@500;700&display=swap');

:root {
    /* Colors */
    --bg-color: #ffffff;
    --bg-secondary: #f8fafc;
    /* Very light slate for contrast */
    --text-primary: #1e293b;
    /* Slate 800 - Deep, professional dark */
    --text-secondary: #475569;
    /* Slate 600 - Readable contrast */
    --accent-primary: #2563eb;
    /* Royal Blue - Trust & Clarity */
    --accent-hover: #1d4ed8;
    --border-color: #e2e8f0;

    /* Spacing & Layout */
    --section-spacing: 120px;
    --container-width: 1080px;
    --card-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
    --card-hover-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Base Reset & Typography */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    /* Modern Display Font */
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
    /* 18px */
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: all 0.2s ease;
    font-weight: 500;
}

/* Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

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

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

/* Components */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--accent-primary);
    color: #fff;
    padding: 16px 40px;
    border-radius: 8px;
    /* Slightly more rounded */
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 1.1rem;
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 12px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 12px 24px;
    border-radius: 6px;
    font-size: 0.95rem;
}

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

/* Section Styles */
section {
    padding: var(--section-spacing) 0;
}

/* Hero Section - Gradient & Modern */
.hero {
    background:
        radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.05) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(37, 99, 235, 0.03) 0%, transparent 20%);
    text-align: center;
    padding: 160px 0 120px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, #475569 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .subtitle {
    font-size: 1.35rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    font-weight: 400;
}

/* About Section - Clean Text */
.about {
    background-color: #fff;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

/* Content List / Features - Cards */
.content-list {
    background-color: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

/* Subtle background pattern */
.content-list::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.feature-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 12px;
    border: 1px solid rgba(226, 232, 240, 0.6);
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-hover-shadow);
    border-color: rgba(37, 99, 235, 0.2);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 1rem;
    margin-bottom: 0;
}

.check-icon {
    color: var(--accent-primary);
    font-size: 1.5rem;
    margin-bottom: 15px;
    display: block;
}

/* Target Audience */
.audience {
    background-color: #fff;
}

.audience-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
}

.audience-item {
    background: var(--bg-secondary);
    padding: 20px 30px;
    border-radius: 50px;
    /* Pill shape */
    font-weight: 500;
    color: var(--text-primary);
    border: 1px solid transparent;
    transition: all 0.2s;
}

.audience-item:hover {
    border-color: var(--accent-primary);
    background: #fff;
    box-shadow: var(--card-shadow);
}

/* Format Section */
.format {
    text-align: center;
    background-color: var(--bg-secondary);
}

/* Disclaimer - Professional Alert */
.disclaimer {
    padding: 60px 0;
}

.disclaimer-box {
    background-color: #fef2f2;
    /* Very light red/warning tint for disclaimer */
    border-left: 4px solid #ef4444;
    /* Red accent line */
    padding: 30px 40px;
    border-radius: 4px;
    font-size: 0.95rem;
    text-align: left;
    max-width: 800px;
    margin: 0 auto;
}

.disclaimer-box h3 {
    color: #991b1b;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.disclaimer-box p {
    color: #7f1d1d;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

/* Footer */
footer {
    background-color: #fff;
    border-top: 1px solid var(--border-color);
    padding: 60px 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

footer nav {
    margin-top: 20px;
}

footer a {
    color: var(--text-secondary);
    margin: 0 15px;
    font-weight: 500;
}

footer a:hover {
    color: var(--accent-primary);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    :root {
        --section-spacing: 80px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero .subtitle {
        font-size: 1.125rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .btn-primary {
        width: 100%;
    }
}

/* Modal / Popup Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.6);
    /* Backdrop blur dark slate */
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 16px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.close-modal:hover {
    color: var(--text-primary);
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.success-message {
    display: none;
    text-align: center;
    color: #059669;
    /* Green 600 */
}

.success-icon {
    font-size: 3rem;
    margin-bottom: 10px;
    display: block;
}