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

:root {
    /* Color Palette - Dark Green Theme */
    --primary-dark: #1a3a2e;
    --primary-green: #2d5a47;
    --accent-green: #4a8f6f;
    --light-green: #6db595;
    --accent-orange: #f4a261;
    --text-dark: #1a1a1a;
    --text-light: #f8f9fa;
    --text-gray: #6c757d;
    --bg-light: #ffffff;
    --bg-dark: #0f1e1a;
    --bg-section: #f8f9fa;
    
    /* Typography */
    --font-primary: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    /* Subtle ambient background pattern */
    background-image:
        radial-gradient(ellipse at 20% 30%, rgba(74, 143, 111, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(109, 181, 149, 0.03) 0%, transparent 50%);
    background-attachment: fixed;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-dark);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
    max-width: 70ch;
}

a {
    color: var(--accent-green);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

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

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header and Navigation */
.header {
    background-color: var(--bg-light);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-normal);
}

.header.scrolled {
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-green), var(--accent-green));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--text-dark);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--accent-green);
}

.nav-link.active {
    color: var(--accent-green);
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-toggle::after {
    content: '▼';
    font-size: 0.7rem;
    margin-left: 0.25rem;
    transition: transform var(--transition-fast);
}

.dropdown:hover .dropdown-toggle::after {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--bg-light);
    min-width: 220px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    border-radius: 8px;
    padding: var(--spacing-xs) 0;
    padding-top: calc(var(--spacing-xs) + 8px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
}

/* Bridge the gap between nav item and dropdown to prevent hover loss */
.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 0;
    right: 0;
    height: 8px;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-dark);
    display: block;
    transition: background-color var(--transition-fast);
}

.dropdown-item:hover {
    background-color: var(--bg-section);
    color: var(--accent-green);
}

/* Mobile Menu Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-dark);
    transition: all var(--transition-normal);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-green) 100%);
    color: var(--text-light);
    padding: var(--spacing-xl) 0;
    min-height: 600px;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero h1 {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.hero p {
    color: rgba(255,255,255,0.9);
}

.hero-text h1 {
    font-size: 3.5rem;
}

.hero-text p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    max-width: 100%;
}

.hero-image {
    background-color: rgba(255,255,255,0.1);
    border-radius: 16px;
    padding: var(--spacing-md);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.hero-image-placeholder {
    color: rgba(255,255,255,0.5);
    text-align: center;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: #e89450;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(244, 162, 97, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-light);
    border-color: var(--text-light);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--accent-green);
    border-color: var(--accent-green);
}

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

.btn-group {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* Sections */
.section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

/* Alternating subtle backgrounds for visual rhythm */
.section:nth-of-type(odd):not(.section-dark):not(.section-light):not(.hero) {
    background: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(248,249,250,0.5) 50%, rgba(255,255,255,0) 100%);
}

.section-dark {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #0f2a22 100%);
    color: var(--text-light);
}

.section-dark h2,
.section-dark h3,
.section-dark h4 {
    color: var(--text-light);
}

.section-dark p {
    color: rgba(255,255,255,0.9);
}

.section-light {
    background: linear-gradient(180deg, var(--bg-section) 0%, #f0f4f2 100%);
    border-top: 1px solid rgba(74, 143, 111, 0.08);
    border-bottom: 1px solid rgba(74, 143, 111, 0.08);
}

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

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
}

.section-header .section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 10%;
    right: 10%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-green), var(--light-green));
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-gray);
    max-width: 700px;
    margin: var(--spacing-sm) auto 0;
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* Cards - Base styles (static/read-only by default) */
.card {
    background: linear-gradient(145deg, #fafbfa 0%, #f5f7f6 100%);
    border-radius: 12px;
    padding: var(--spacing-md);
    box-shadow: none;
    border: 1px solid rgba(74, 143, 111, 0.08);
    transition: none;
}

/* Static cards - no hover effects */
.card-static,
.card-static:hover {
    transform: none;
    box-shadow: none;
    cursor: default;
}

/* Clickable/Interactive cards */
.card-link {
    background: linear-gradient(145deg, #ffffff 0%, #fafbfa 100%);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    border: 1px solid rgba(74, 143, 111, 0.06);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
}

.card-link::after {
    content: '';
    position: absolute;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    width: 24px;
    height: 24px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%234a8f6f' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12h14M12 5l7 7-7 7'/%3E%3C/svg%3E");
    background-size: contain;
    opacity: 0.5;
    transition: all var(--transition-normal);
}

.card-link:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(26, 58, 46, 0.12);
    border-color: var(--accent-green);
}

.card-link:hover::after {
    opacity: 1;
    transform: translateX(4px);
}

/* Card as link element - inherit text colors */
a.card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

a.card-link h3,
a.card-link h4 {
    color: var(--primary-dark);
}

a.card-link:hover h3,
a.card-link:hover h4 {
    color: var(--accent-green);
}

/* Accent card variant */
.card-accent {
    border-left: 4px solid var(--accent-green);
}

/* Highlighted card variant */
.card-highlight {
    background: linear-gradient(145deg, rgba(74, 143, 111, 0.03) 0%, rgba(109, 181, 149, 0.02) 100%);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-green), var(--light-green));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
    color: white;
    box-shadow: 0 4px 12px rgba(74, 143, 111, 0.25);
}

.card-icon svg {
    width: 28px;
    height: 28px;
    fill: currentColor;
}

/* Icon sizes */
.icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.icon svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

.icon-sm svg {
    width: 16px;
    height: 16px;
}

.icon-lg svg {
    width: 32px;
    height: 32px;
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.card-text {
    color: var(--text-gray);
}

/* Feature Section */
.feature {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(248,249,250,0.5) 0%, rgba(255,255,255,0.8) 100%);
    border: 1px solid rgba(74, 143, 111, 0.05);
}

.feature:nth-child(even) {
    direction: rtl;
    background: linear-gradient(225deg, rgba(248,249,250,0.5) 0%, rgba(255,255,255,0.8) 100%);
}

.feature:nth-child(even) > * {
    direction: ltr;
}

.feature-image {
    background: linear-gradient(145deg, #f0f4f2 0%, #e8eeeb 100%);
    border-radius: 12px;
    padding: var(--spacing-md);
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(74, 143, 111, 0.08);
}

.feature-content h3 {
    margin-bottom: var(--spacing-sm);
    position: relative;
    padding-left: var(--spacing-sm);
}

.feature-content h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.2em;
    bottom: 0.2em;
    width: 3px;
    background: linear-gradient(180deg, var(--accent-green), var(--light-green));
    border-radius: 2px;
}

/* Form Styles */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-dark);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--accent-green);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-error {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

.form-success {
    color: #28a745;
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

/* Footer */
.footer {
    background-color: var(--primary-dark);
    color: var(--text-light);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--text-light);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--spacing-md);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255,255,255,0.6);
}

/* Responsive Design */
@media (max-width: 968px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.75rem; }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .hero-content,
    .feature {
        grid-template-columns: 1fr;
    }
    
    .feature:nth-child(even) {
        direction: ltr;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-light);
        flex-direction: column;
        padding: var(--spacing-sm);
        box-shadow: 0 8px 24px rgba(0,0,0,0.15);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all var(--transition-normal);
        max-height: 80vh;
        overflow-y: auto;
    }

    .nav-menu.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .nav-item {
        width: 100%;
    }

    .nav-link {
        display: block;
        padding: var(--spacing-xs) 0;
    }

    /* Mobile dropdown - hidden by default, shown on click via JS */
    .dropdown-menu {
        position: static;
        opacity: 0;
        visibility: hidden;
        max-height: 0;
        overflow: hidden;
        transform: none;
        box-shadow: none;
        padding: 0;
        margin-top: 0;
        transition: all var(--transition-normal);
    }

    .dropdown-menu::before {
        display: none;
    }

    .dropdown.active .dropdown-menu {
        opacity: 1;
        visibility: visible;
        max-height: 500px;
        padding: var(--spacing-xs) 0 var(--spacing-xs) var(--spacing-sm);
    }

    .dropdown-item {
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    /* Mobile CTA button */
    .nav-item .btn.btn-primary {
        display: block;
        width: 100%;
        margin-top: var(--spacing-sm);
        text-align: center;
    }

    /* Hide card-link arrow on mobile */
    .card-link::after {
        display: none;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

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

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

    .feature {
        padding: var(--spacing-sm);
    }

    .feature-content h3::before {
        display: none;
    }

    .feature-content h3 {
        padding-left: 0;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .btn-group {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .btn-group .btn {
        width: 100%;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.hidden { display: none; }