:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --text-main: #1f2937;
    --text-muted: #4b5563;
    --text-light: #9ca3af;
    --bg-main: #f9fafb;
    --bg-card: #ffffff;
    --border: #e5e7eb;
    --accent: #dbeafe;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-main);
    text-decoration: none;
}

.logo:hover {
    text-decoration: none;
}

.logo img {
    height: 32px;
    width: auto;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

nav a {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
}

nav a:hover {
    color: var(--primary);
    text-decoration: none;
}

/* Typography */
h1, h2, h3, h4 {
    color: var(--text-main);
    line-height: 1.2;
    margin-bottom: 1rem;
    font-weight: 700;
}

h1 {
    font-size: 2.5rem;
    letter-spacing: -0.025em;
}

h2 {
    font-size: 2rem;
    margin-top: 2.5rem;
    letter-spacing: -0.025em;
}

h3 {
    font-size: 1.5rem;
    margin-top: 2rem;
}

p {
    margin-bottom: 1.25rem;
    color: var(--text-muted);
}

/* Hero Section */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 5rem 1.5rem;
    background: linear-gradient(to bottom, #ffffff, var(--bg-main));
    border-bottom: 1px solid var(--border);
}

.hero h1 {
    max-width: 800px;
    margin: 0 auto 1.25rem auto;
}

.hero p.subhead {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 2rem auto;
}

/* Button Component */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    color: #ffffff;
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--bg-card);
    color: var(--text-main);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background-color: var(--bg-main);
    color: var(--text-main);
    text-decoration: none;
}

/* Sections */
section {
    padding: 4rem 0;
}

.bg-white {
    background-color: var(--bg-card);
}

/* Cards & Grid */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
    background-color: var(--accent);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-icon img {
    width: 24px;
    height: 24px;
}

/* Lists */
ul.checklist {
    list-style: none;
    padding-left: 0;
}

ul.checklist li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 1rem;
    color: var(--text-muted);
}

ul.checklist li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--primary);
    font-weight: bold;
}

/* Call Script Box */
.script-box {
    background-color: var(--bg-main);
    border-left: 4px solid var(--primary);
    padding: 1.5rem;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--text-main);
    font-size: 1.1rem;
    margin: 2rem 0;
}

/* CTA Block */
.cta-block {
    background-color: var(--primary);
    color: #ffffff;
    text-align: center;
    padding: 4rem 1.5rem;
    border-radius: var(--radius-lg);
    margin: 4rem 0;
}

.cta-block h2 {
    color: #ffffff;
    margin-top: 0;
}

.cta-block p {
    color: #e0e7ff;
    max-width: 600px;
    margin: 0 auto 2rem;
}

/* Footer */
footer {
    background-color: var(--bg-card);
    border-top: 1px solid var(--border);
    padding: 3rem 0;
    margin-top: 4rem;
}

.footer-inner {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.footer-section h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--text-muted);
}

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

.disclaimer {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    color: var(--text-light);
    font-size: 0.875rem;
    text-align: center;
}

/* Mobile Nav */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-main);
    cursor: pointer;
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    nav ul {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-card);
        padding: 1rem;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-sm);
    }

    nav ul.active {
        display: flex;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
}