/* CSS Variables */
:root {
    --color-primary: #2D3748; /* Deep Indigo */
    --color-secondary: #48BB78; /* Jade */
    --color-accent: #FFF8E1; /* Cream */
    --color-white: #FFFFFF;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;
    
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --max-width: 1200px;
    --border-radius: 8px;
    --shadow: 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);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-white);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
    font-weight: 600;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

h4 {
    font-size: 1.25rem;
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
    line-height: 1.5;
}

/* Header */
.header {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    flex-shrink: 0;
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
}

/* Navigation for auxiliary pages */
.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    color: var(--color-gray-600);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    min-height: 44px;
}

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

.btn-primary:hover {
    background-color: #38A169;
}

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

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

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

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

/* Hero Section */
.hero {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-gray-50) 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-img,
.section-img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--color-gray-600);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

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

/* Features Section */
.features {
    padding: 4rem 0;
    text-align: center;
}

.features h2 {
    text-align: center;
    margin-bottom: 3rem;
}

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

.feature-card {
    background-color: var(--color-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
}

.feature-icon {
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.feature-card p {
    color: var(--color-gray-600);
    margin-bottom: 0;
}

/* Section Content Layout */
.section-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.section-content.reverse {
    direction: rtl;
}

.section-content.reverse > * {
    direction: ltr;
}

.content-text h2 {
    margin-bottom: 1.5rem;
}

.content-text p {
    color: var(--color-gray-600);
    margin-bottom: 1.5rem;
}

/* Tax Guide Section */
.tax-guide {
    padding: 4rem 0;
    background-color: var(--color-gray-50);
    text-align: center;
}

.benefit-list {
    list-style: none;
    padding: 0;
}

.benefit-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.benefit-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-secondary);
    font-weight: 600;
}

/* Deduction Finder */
.deduction-finder {
    padding: 4rem 0;
    text-align: center;
}

.deduction-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.category {
    background-color: var(--color-secondary);
    color: var(--color-white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* Budget Tools */
.budget-tools {
    padding: 4rem 0;
    background-color: var(--color-gray-50);
    text-align: center;
}

.tool-features {
    margin-top: 1.5rem;
}

.tool-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.feature-icon-small {
    font-size: 1.25rem;
}

/* Investment Guide */
.investment-guide {
    padding: 4rem 0;
    text-align: center;
}

.investment-topics {
    margin-top: 1.5rem;
}

.topic {
    margin-bottom: 1.5rem;
}

.topic h4 {
    margin-bottom: 0.5rem;
    color: var(--color-secondary);
}

.topic p {
    color: var(--color-gray-600);
    margin-bottom: 0;
}

/* Filing Tracker */
.filing-tracker {
    padding: 4rem 0;
    background-color: var(--color-gray-50);
    text-align: center;
}

.section-subtitle {
    color: var(--color-gray-600);
    font-size: 1.125rem;
    margin-bottom: 3rem;
}

.tracker-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.tracker-item {
    background-color: var(--color-white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.date {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: 0.5rem;
}

.event {
    color: var(--color-gray-700);
    font-weight: 500;
}

/* Products Section */
.products {
    padding: 4rem 0;
    text-align: center;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.product-card {
    background-color: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--border-radius);
    padding: 2rem;
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card.featured {
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-lg);
    transform: scale(1.02);
}

.product-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-secondary);
    color: var(--color-white);
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.product-card h3 {
    margin-top: 0.5rem;
    margin-bottom: 1rem;
}

.product-card p {
    color: var(--color-gray-600);
    flex-grow: 1;
    margin-bottom: 1.5rem;
}

.product-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

.product-price span {
    font-size: 1rem;
    color: var(--color-gray-500);
    font-weight: 400;
}

/* Benefits Section */
.benefits {
    padding: 4rem 0;
    background-color: var(--color-gray-50);
    text-align: center;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.benefit-item {
    background-color: var(--color-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.benefit-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.benefit-item h3 {
    margin-bottom: 1rem;
}

.benefit-item p {
    color: var(--color-gray-600);
    margin-bottom: 0;
}

/* Contacts Section */
.contacts {
    padding: 4rem 0;
    text-align: center;
}

.contacts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.contact-item {
    background-color: var(--color-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.contact-icon {
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
}

.contact-item h3 {
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.contact-item p {
    color: var(--color-gray-600);
    margin-bottom: 0;
}

/* Footer */
.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--color-white);
    margin-bottom: 1rem;
}

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

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

.footer-section a {
    color: var(--color-gray-300);
    text-decoration: none;
    transition: color 0.2s;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-white);
}

.footer-section p {
    color: var(--color-gray-300);
    margin-bottom: 0;
}

.footer-bottom {
    border-top: 1px solid var(--color-gray-600);
    padding-top: 1rem;
    text-align: center;
    color: var(--color-gray-400);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-direction: column;
        gap: 1rem;
    }
    
    .section-content,
    .section-content.reverse {
        grid-template-columns: 1fr;
        gap: 2rem;
        direction: ltr;
    }
    
    .features-grid,
    .products-grid,
    .benefits-grid,
    .contacts-grid {
        grid-template-columns: 1fr;
    }
    
    .tracker-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .deduction-categories {
        justify-content: center;
    }
    
    .nav-links {
        display: none;
    }
}

    .tracker-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-content h1 {
        font-size: 1.75rem;
    }
    
    .product-card.featured {
        transform: none;
    }
}