/* ============================================
   Farsley Climate Action - Main Stylesheet
   Premium NPO Design with Environmental Theme
   ============================================ */

/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
    /* Color Palette */
    --forest-green: #228B22;
    --leaf-green: #4CAF50;
    --earth-brown: #5D4037;
    --sky-blue: #87CEEB;
    --white: #FFFFFF;
    --light-green: #E8F5E9;
    --dark-green: #1B5E20;
    --gray-light: #F5F5F5;
    --gray-medium: #9E9E9E;
    --gray-dark: #424242;
    
    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--earth-brown);
    background-color: var(--white);
    overflow-x: hidden;
}

/* ============================================
   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(--dark-green);
}

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);
}

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

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

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

.section-light {
    background-color: var(--light-green);
}

.section-white {
    background-color: var(--white);
}

/* ============================================
   Top Bar
   ============================================ */
.top-bar {
    background: linear-gradient(135deg, var(--dark-green) 0%, var(--forest-green) 100%);
    color: var(--white);
    padding: var(--spacing-xs) 0;
    font-size: 0.9rem;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.contact-info {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.contact-info a {
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-fast);
}

.contact-info a:hover {
    opacity: 0.8;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    color: var(--white);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transition: var(--transition-fast);
}

.social-links a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* ============================================
   Main Header
   ============================================ */
.main-header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-normal);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--dark-green);
}

.logo img {
    width: 60px;
    height: 60px;
    object-fit: contain;
    transition: var(--transition-normal);
}

.logo:hover img {
    transform: scale(1.05);
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--forest-green);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 30px;
    height: 3px;
    background: var(--forest-green);
    border-radius: 3px;
    transition: var(--transition-fast);
}

/* Navigation */
.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.main-nav a {
    color: var(--earth-brown);
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 5px;
    transition: var(--transition-fast);
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--forest-green);
    transition: var(--transition-fast);
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--forest-green);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 80%;
}

/* ============================================
   Donate Bar
   ============================================ */
.donate-bar {
    background: linear-gradient(135deg, var(--leaf-green) 0%, var(--forest-green) 100%);
    padding: var(--spacing-sm) 0;
    text-align: center;
}

.donate-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--white);
    color: var(--forest-green);
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    transition: var(--transition-normal);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.donate-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    color: var(--dark-green);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(34, 139, 34, 0.8) 0%, rgba(27, 94, 32, 0.7) 100%);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
    padding: var(--spacing-md);
    animation: fadeInUp 1s ease;
}

.hero h1 {
    color: var(--white);
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-lg);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-block;
    padding: 14px 30px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-normal);
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background: var(--dark-green);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(34, 139, 34, 0.3);
}

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

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

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

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

/* ============================================
   Cards
   ============================================ */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: var(--transition-normal);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.card-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.card-content {
    padding: var(--spacing-md);
}

.card h3 {
    color: var(--forest-green);
    margin-bottom: var(--spacing-sm);
}

.card p {
    color: var(--gray-dark);
    margin-bottom: var(--spacing-sm);
}

/* Glassmorphism Card */
.card-glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* ============================================
   Statistics Section
   ============================================ */
.stats {
    background: linear-gradient(135deg, var(--forest-green) 0%, var(--dark-green) 100%);
    color: var(--white);
    padding: var(--spacing-xl) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-md);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    font-family: var(--font-heading);
    margin-bottom: var(--spacing-xs);
    color: var(--white);
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

.stat-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.8;
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--dark-green);
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: 1.2rem;
    color: var(--gray-dark);
    max-width: 700px;
    margin: 0 auto;
}

.section-divider {
    width: 80px;
    height: 4px;
    background: var(--forest-green);
    margin: var(--spacing-sm) auto;
    border-radius: 2px;
}

/* ============================================
   Footer
   ============================================ */
.main-footer {
    background: linear-gradient(135deg, var(--dark-green) 0%, var(--earth-brown) 100%);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-column h4 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
    font-size: 1.3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.footer-logo img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.footer-logo h3 {
    color: var(--white);
    font-size: 1.3rem;
}

.footer-description {
    opacity: 0.9;
    line-height: 1.6;
}

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

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

.footer-links a {
    color: var(--white);
    opacity: 0.9;
    transition: var(--transition-fast);
    display: inline-block;
}

.footer-links a:hover {
    opacity: 1;
    transform: translateX(5px);
}

.footer-contact p {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
}

.footer-contact i {
    margin-top: 3px;
    color: var(--leaf-green);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    text-align: center;
}

.charity-info {
    font-weight: 600;
    color: var(--white);
}

.copyright {
    opacity: 0.9;
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    color: var(--white);
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transition: var(--transition-fast);
}

.footer-social a:hover {
    background: var(--leaf-green);
    transform: translateY(-3px);
}

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

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

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--gray-light);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--forest-green);
    box-shadow: 0 0 0 3px rgba(34, 139, 34, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 150px;
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    animation: fadeIn 1s ease;
}

.fade-in-up {
    animation: fadeInUp 1s ease;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.5rem; }
    
    .top-bar-content {
        justify-content: center;
        text-align: center;
    }
    
    .contact-info {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        max-height: 0;
        overflow: hidden;
        transition: var(--transition-normal);
    }
    
    .main-nav.active {
        max-height: 500px;
    }
    
    .main-nav ul {
        flex-direction: column;
        padding: var(--spacing-sm);
        gap: 0;
    }
    
    .main-nav li {
        border-bottom: 1px solid var(--gray-light);
    }
    
    .main-nav a {
        display: block;
        padding: var(--spacing-sm);
    }
    
    .logo-text {
        font-size: 1.2rem;
    }
    
    .hero {
        height: 500px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .logo img {
        width: 50px;
        height: 50px;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
}