:root {
    /* Dark Mode Navy Blue Theme */
    --navy-dark: #0a1628;
    --navy-medium: #1a2a3a;
    --navy-light: #2e3857;
    --navy-accent: #4c89bf;
    --blue-bright: #4daaf2;
    --blue-light: #0C71C3;
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-muted: rgba(255, 255, 255, 0.6);
    
    /* Accent Colors */
    --accent-green: #50e0aa;
    --accent-pink: #ea5c84;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
}

/* RESET & BASE */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-primary);
    background-color: var(--navy-dark);
    line-height: 1.7;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

h1 {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 1.1rem;
}

a {
    color: var(--blue-bright);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--blue-light);
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* NAVIGATION */
.main-nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

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

.logo-link {
    display: flex;
    align-items: center;
}

.nav-logo {
    height: 60px;
    width: auto;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-menu li a {
    color: var(--text-primary);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--blue-bright);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-xs);
}

/* HERO SECTION */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    background: linear-gradient(180deg, var(--navy-light) 0%, var(--navy-dark) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    max-width: 600px;
}

.hero-lead {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.mission-statement {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin: var(--spacing-md) 0;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.frankie-logo {
    max-width: 100%;
    height: auto;
    max-height: 600px;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
}

.hero-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

/* BUTTONS */
.btn {
    display: inline-block;
    padding: 14px 30px;
    border-radius: 100px;
    font-weight: 700;
    font-size: 16px;
    text-align: center;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
}

.btn-primary {
    background-color: var(--blue-bright);
    color: var(--text-primary);
    box-shadow: 0px 8px 35px -6px rgba(77, 170, 242, 0.36);
}

.btn-primary:hover {
    background-color: var(--blue-light);
    transform: translateY(-2px);
    box-shadow: 0px 12px 40px -6px rgba(77, 170, 242, 0.5);
    color: var(--text-primary);
}

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

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.btn-large {
    padding: 18px 40px;
    font-size: 18px;
}

.btn-link {
    background: none;
    color: var(--blue-bright);
    padding: 0;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 14px;
    letter-spacing: 0.5px;
}

.btn-link:hover {
    color: var(--blue-light);
    transform: none;
    box-shadow: none;
}

/* MISSION SECTION */
.mission {
    padding: var(--spacing-xl) 0;
    background-color: var(--navy-medium);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-label {
    font-weight: 700;
    font-size: 15px;
    color: var(--blue-bright);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.section-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.feature-card {
    background-color: var(--navy-light);
    padding: var(--spacing-md);
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* CTA SECTION */
.cta-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--blue-light);
    text-align: center;
}

.cta-section h2 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.cta-section p {
    color: var(--text-primary);
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto var(--spacing-md);
}

/* IMPACT SECTION */
.impact {
    padding: var(--spacing-xl) 0;
    background-color: var(--navy-dark);
}

.impact-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.impact-text h2,
.impact-future h2 {
    color: var(--blue-bright);
    margin-bottom: var(--spacing-md);
}

.impact-list {
    list-style: disc;
    padding-left: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.impact-list li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-xs);
}

.impact-future {
    background-color: var(--navy-light);
    padding: var(--spacing-md);
    border-radius: 12px;
}

/* DONATE SECTION */
.donate {
    padding: var(--spacing-xl) 0;
    background-color: var(--navy-medium);
}

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

.donate-text h2 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.donate-text ul {
    list-style: disc;
    text-align: left;
    max-width: 600px;
    margin: var(--spacing-md) auto;
    padding-left: var(--spacing-md);
}

.donate-text ul li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-xs);
}

/* RACHEL'S STORY SECTION */
.rachel-story-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--navy-medium);
}

.rachel-story-content {
    max-width: 900px;
    margin: 0 auto;
}

.rachel-story-text {
    text-align: left;
}

.rachel-story-text h2 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.rachel-story-lead {
    font-size: 1.3rem;
    color: var(--accent-green);
    text-align: center;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.rachel-story-text p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    line-height: 1.8;
}

.rachel-story-text p strong {
    color: var(--text-primary);
    font-weight: 600;
}

.rachel-story-cta {
    text-align: center;
    margin-top: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.rachel-story-cta .btn {
    margin: 0;
}

/* CONTACT SECTION */
.contact {
    padding: var(--spacing-xl) 0;
    background-color: var(--navy-dark);
    text-align: center;
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-text h2 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.contact-text p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* FOOTER */
.main-footer {
    padding: var(--spacing-md) 0;
    background-color: var(--navy-dark);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.main-footer p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

.main-footer a {
    color: var(--blue-bright);
}

/* RESPONSIVE DESIGN */
@media (max-width: 980px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .hero-image {
        order: -1;
    }
    
    .frankie-logo {
        max-height: 400px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .impact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        background-color: var(--navy-dark);
        flex-direction: column;
        padding: var(--spacing-md);
        transition: left 0.3s ease;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        width: 100%;
        text-align: center;
    }
    
    .nav-menu li a {
        display: block;
        padding: var(--spacing-sm);
    }
    
    .rachel-story-section {
        padding: var(--spacing-lg) 0;
    }
    
    .rachel-story-text h2 {
        font-size: 2rem;
    }
    
    .rachel-story-lead {
        font-size: 1.1rem;
    }
    
    .rachel-story-text p {
        font-size: 1rem;
    }
    
    .rachel-story-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .rachel-story-cta .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .hero {
        padding-top: 120px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .frankie-logo {
        max-height: 300px;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .hero-lead {
        font-size: 1.1rem;
    }
    
    .mission-statement {
        font-size: 1.1rem;
    }
}