/* Base Styles & CSS Variables */
:root {
    --primary: #0A52A0; /* Trustworthy Medical Blue */
    --primary-light: #2563EB;
    --primary-dark: #1E3A8A;
    --secondary: #0F766E; /* Teal */
    --accent: #F97316; /* Action Orange */
    --text-main: #1E293B;
    --text-muted: #64748B;
    --bg-main: #F8FAFC;
    --bg-card: #FFFFFF;
    --border: #E2E8F0;
    --radius: 12px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

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

h1 { font-size: 2.5rem; margin-bottom: 1.5rem; letter-spacing: -0.025em; }
h2 { font-size: 2rem; margin-top: 2.5rem; margin-bottom: 1rem; letter-spacing: -0.025em; }
h3 { font-size: 1.5rem; margin-top: 2rem; margin-bottom: 0.75rem; }
p { margin-bottom: 1.25rem; font-size: 1.125rem; color: var(--text-muted); }
ul, ol { margin-bottom: 1.5rem; padding-left: 1.5rem; color: var(--text-muted); font-size: 1.125rem; }
li { margin-bottom: 0.5rem; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }

/* Layout Containers */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header & Navigation */
.header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
    padding: 1rem 0;
    transition: var(--transition);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--secondary);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: var(--text-main);
    font-weight: 500;
    font-size: 1rem;
}

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

/* CTA Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.btn-primary {
    background-color: var(--primary);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    color: white;
}

.btn-accent {
    background-color: var(--accent);
    color: white;
}

.btn-accent:hover {
    background-color: #EA580C;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    color: white;
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background-color: var(--primary);
    color: white;
}

/* Hero Section */
.hero {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f0f7ff 0%, #e0e7ff 100%);
    position: relative;
    overflow: hidden;
}

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

.hero h1 {
    font-size: 3rem;
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.hero-ctas {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Main Content Area */
.main-content {
    padding: 4rem 0;
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    margin: -3rem auto 3rem;
    position: relative;
    z-index: 10;
    max-width: 900px;
}

.content-wrapper {
    padding: 0 3rem;
}

.content-section {
    margin-bottom: 3rem;
}

/* Cards & Lists */
.feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    list-style: none;
    padding: 0;
    margin-top: 1.5rem;
}

.feature-list li {
    background: var(--bg-main);
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: var(--transition);
}

.feature-list li:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
    border-color: var(--primary-light);
}

.feature-list li::before {
    content: "✓";
    color: var(--secondary);
    font-weight: bold;
    font-size: 1.25rem;
}

/* Step-by-step Guides */
.steps-container {
    counter-reset: steps;
    margin-top: 2rem;
}

.step-item {
    position: relative;
    padding-left: 3rem;
    margin-bottom: 2rem;
}

.step-item::before {
    counter-increment: steps;
    content: counter(steps);
    position: absolute;
    left: 0;
    top: 0;
    width: 2rem;
    height: 2rem;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1rem;
}

/* Alert Boxes */
.alert-box {
    background: #FFFBEB;
    border-left: 4px solid #F59E0B;
    padding: 1rem 1.5rem;
    border-radius: 0 var(--radius) var(--radius) 0;
    margin: 1.5rem 0;
}

.alert-box.info {
    background: #EFF6FF;
    border-left-color: var(--primary-light);
}

/* FAQ Section */
.faq-item {
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 0;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-item h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--primary-dark);
}

.faq-item p {
    margin-bottom: 0;
    font-size: 1rem;
}

/* CTA Banner */
.cta-banner {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 4rem 2rem;
    text-align: center;
    border-radius: var(--radius);
    margin: 4rem auto;
    max-width: 1000px;
    box-shadow: var(--shadow-lg);
}

.cta-banner h2 {
    color: white;
    margin-top: 0;
}

.cta-banner p {
    color: #E2E8F0;
}

/* Footer */
.footer {
    background: #0F172A;
    color: #94A3B8;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer h3 {
    color: white;
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    margin-top: 0;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: #94A3B8;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #1E293B;
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-links {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero h1 { font-size: 2rem; }
    
    .content-wrapper { padding: 0 1.5rem; }
    
    .hero-ctas { flex-direction: column; }
}