/* ===========================
   CSS Reset & Base Styles
   =========================== */

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

:root {
    --primary-color: #1a1a1a;
    --secondary-color: #4a4a4a;
    --accent-color: #2563eb;
    --background-color: #ffffff;
    --background-alt: #f8f9fa;
    --border-color: #e5e7eb;
    --text-primary: #1a1a1a;
    --text-secondary: #6b7280;
    --max-width: 1200px;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2.5rem;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===========================
   Typography
   =========================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--primary-color);
}

h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

p {
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

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

a:hover {
    opacity: 0.8;
}

/* ===========================
   Hero Section
   =========================== */

.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 12rem 0;
    background: linear-gradient(135deg, var(--background-alt) 0%, var(--background-color) 100%);
}

.hero-name {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.hero-title {
    font-size: 1.75rem;
    color: var(--secondary-color);
    font-weight: 400;
    margin-bottom: 1rem;
}

.hero-tagline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

.hero-experience {
    font-size: 1.125rem;
    color: var(--secondary-color);
    font-weight: 500;
    margin-top: var(--spacing-md);
}

/* ===========================
   Section Styles
   =========================== */

.section {
    padding: var(--spacing-xl) 0;
}

.section:nth-child(even) {
    background-color: var(--background-alt);
}

.section-title {
    text-align: center;
    margin-bottom: 2rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--accent-color);
    margin: 0.5rem auto 0;
    border-radius: 2px;
}

/* ===========================
   Benefits Section
   =========================== */

.benefits-list {
    max-width: 800px;
    margin: 1.5rem auto 0;
}

.benefit-item {
    margin-bottom: var(--spacing-md);
}

.benefit-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.25rem;
    font-size: 1.25rem;
}

.benefit-item p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* ===========================
   Results Section
   =========================== */

.results-list {
    max-width: 800px;
    margin: 1.5rem auto 0;
}

.result-item {
    margin-bottom: var(--spacing-lg);
}

.result-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.result-item ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.result-item li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.result-item li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* ===========================
   When to Connect Section
   =========================== */

.when-list {
    max-width: 800px;
    margin: 1.5rem auto 0;
}

.when-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.when-list li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 1.125rem;
}

.when-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* ===========================
   Principles Section
   =========================== */

.principles-list {
    max-width: 800px;
    margin: 1.5rem auto 0;
}

.principles-list p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-style: italic;
}

/* ===========================
   Contact Section
   =========================== */

.contact-list {
    max-width: 800px;
    margin: 1.5rem auto 0;
}

.contact-list p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.contact-list strong {
    color: var(--primary-color);
    font-weight: 600;
}

.contact-list a {
    color: var(--accent-color);
    text-decoration: none;
}

.contact-list a:hover {
    text-decoration: underline;
}

/* ===========================
   Footer
   =========================== */

.footer {
    background-color: var(--primary-color);
    color: #ffffff;
    text-align: center;
    padding: var(--spacing-md) 0;
}

.footer p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

/* ===========================
   Responsive Design
   =========================== */

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

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

    .hero-title {
        font-size: 1.25rem;
    }

    .hero-tagline {
        font-size: 1rem;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .section {
        padding: var(--spacing-xl) 0;
    }
}

@media (max-width: 480px) {
    .hero-name {
        font-size: 2rem;
    }

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

    .hero-tagline {
        font-size: 0.9rem;
    }
    
    .hero-experience {
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 1.75rem;
    }
}

/* ===========================
   Print Styles
   =========================== */

@media print {
    .nav {
        display: none;
    }

    .section {
        page-break-inside: avoid;
    }
}