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

:root {
    --primary-color: #2e7d32;
    --primary-light: #4caf50;
    --primary-dark: #1b5e20;
    --secondary-color: #66bb6a;
    --accent-color: #81c784;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --bg-light: #f1f8e9;
    --border-color: #e5e7eb;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--bg-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background-color: var(--bg-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-icon {
    width: 32px;
    height: 32px;
    object-fit: contain;
    border-radius: 8px;
}

.nav-brand h1 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #2e7d32 0%, #1b5e20 100%);
    color: white;
    padding: 6rem 0;
    text-align: center;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

/* Features Section */
.features {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-color);
}

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

.feature-card {
    background-color: var(--bg-color);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.feature-card p {
    color: var(--text-light);
}

/* About Section */
.about {
    padding: 5rem 0;
}

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

.about-content p {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

/* Footer */
.footer {
    background-color: var(--text-color);
    color: var(--bg-color);
    padding: 2rem 0;
    margin-top: 4rem;
}

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

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--bg-color);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 1;
}

/* Guide Page Styles */
.guide-container {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 20px;
}

.guide-sidebar {
    position: sticky;
    top: 80px;
    height: fit-content;
    background-color: var(--bg-light);
    padding: 1.5rem;
    border-radius: 0.5rem;
}

.guide-sidebar h3 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

.guide-nav {
    list-style: none;
}

.guide-nav li {
    margin-bottom: 0.5rem;
}

.guide-nav a {
    color: var(--text-light);
    text-decoration: none;
    display: block;
    padding: 0.5rem;
    border-radius: 0.25rem;
    transition: all 0.3s;
}

.guide-nav a:hover {
    background-color: var(--bg-color);
    color: var(--primary-color);
}

.guide-content {
    background-color: var(--bg-color);
    padding: 3rem;
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
}

.guide-content h1 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--text-color);
}

.guide-section {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.guide-section:last-child {
    border-bottom: none;
}

.guide-section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.guide-section h3 {
    font-size: 1.5rem;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.guide-section p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

.guide-list {
    margin-left: 2rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.guide-list li {
    margin-bottom: 0.5rem;
}

/* Step Cards */
.step-card {
    background-color: var(--bg-light);
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    border-left: 4px solid var(--primary-color);
}

.step-card h3 {
    margin-top: 0;
    color: var(--primary-color);
}

/* Flowchart Styles */
.flowchart {
    margin: 2rem 0;
    padding: 2rem;
    background-color: var(--bg-light);
    border-radius: 0.5rem;
}

.flowchart-img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.flowchart-placeholder {
    text-align: center;
}

.flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.flow-node {
    background-color: var(--bg-color);
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
    font-weight: 600;
    min-width: 200px;
    text-align: center;
}

.flow-arrow {
    font-size: 2rem;
    color: var(--primary-color);
}

/* Category Grid */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.category-item {
    background-color: var(--bg-light);
    padding: 1rem;
    border-radius: 0.5rem;
    text-align: center;
    font-weight: 600;
}

/* Info Box */
.info-box {
    background-color: #dbeafe;
    border-left: 4px solid var(--primary-color);
    padding: 1rem;
    border-radius: 0.5rem;
    margin: 1.5rem 0;
}

/* Tip Cards */
.tip-card {
    background-color: var(--bg-light);
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
}

.tip-card h3 {
    margin-top: 0;
    color: var(--primary-color);
}

/* Guide Footer */
.guide-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
    text-align: center;
}

.guide-footer p {
    margin-bottom: 1rem;
}

.guide-footer a[href^="mailto"] {
    color: var(--primary-color);
    text-decoration: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content h2 {
        font-size: 2rem;
    }

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

    .hero-buttons {
        flex-direction: column;
    }

    .nav-menu {
        gap: 1rem;
        font-size: 0.9rem;
    }

    .guide-container {
        grid-template-columns: 1fr;
    }

    .guide-sidebar {
        position: static;
    }

    .guide-content {
        padding: 1.5rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .footer .container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .category-grid {
        grid-template-columns: 1fr;
    }
}

/* Animation classes */
.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.5s ease-out 0.1s forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 480px) {
    .hero-content h2 {
        font-size: 1.5rem;
    }

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

    .guide-content h1 {
        font-size: 1.75rem;
    }

    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
    }
}