/* ============================================
   Yadgir Future Charitable Trust - Main Stylesheet
   Modern, Responsive, Mobile-First Design
   ============================================ */

/* ===== CSS Variables ===== */
:root {
    --primary-green: #2d8659;
    --primary-blue: #1e6fa8;
    --accent-green: #4caf50;
    --accent-blue: #2196f3;
    --dark-text: #333333;
    --light-text: #666666;
    --white: #ffffff;
    --light-bg: #f8f9fa;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-text);
    background-color: var(--white);
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--dark-text);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

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

/* ===== Header & Navigation ===== */
header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-green);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo::before {
    content: "🌱";
    font-size: 2rem;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--dark-text);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: var(--transition);
}

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

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-green);
}

/* ===== Hero Section ===== */
.hero {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-blue) 100%);
    color: var(--white);
    padding: 5rem 2rem;
    text-align: center;
    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"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--white);
    animation: fadeInUp 1s ease;
}

.hero .tagline {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: var(--white);
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.4s both;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.6s both;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--primary-green);
    border-color: var(--primary-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

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

.btn-secondary:hover {
    background-color: var(--white);
    color: var(--primary-green);
    transform: translateY(-2px);
}

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

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

/* ===== Section Styles ===== */
section {
    padding: 4rem 2rem;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--light-text);
    max-width: 600px;
    margin: 0 auto;
}

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

/* ===== Focus Areas / Activities Grid ===== */
.focus-areas,
.activities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.focus-card,
.activity-card {
    background-color: var(--white);
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 4px solid var(--primary-green);
}

.focus-card:hover,
.activity-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.focus-card .icon,
.activity-card .icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.focus-card h3,
.activity-card h3 {
    color: var(--primary-green);
    margin-bottom: 1rem;
}

/* ===== About Section ===== */
.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 2rem;
}

.about-box {
    background-color: var(--light-bg);
    padding: 2rem;
    border-radius: 10px;
    border-left: 4px solid var(--primary-green);
}

.about-box h3 {
    color: var(--primary-green);
    margin-bottom: 1rem;
}

/* ===== Donate Section ===== */
.donate-content {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--light-bg);
    padding: 3rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

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

.donate-method {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    border: 2px solid var(--border-color);
}

.donate-method h3 {
    color: var(--primary-green);
    margin-bottom: 1rem;
}

.qr-placeholder {
    width: 200px;
    height: 200px;
    background-color: var(--light-bg);
    border: 2px dashed var(--border-color);
    border-radius: 10px;
    margin: 1rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light-text);
}

/* ===== Gallery ===== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: var(--transition);
}

.gallery-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-hover);
}

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: var(--white);
    padding: 1rem;
    transform: translateY(100%);
    transition: var(--transition);
}

.gallery-item:hover .gallery-caption {
    transform: translateY(0);
}

.placeholder-image {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-blue) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
}

/* ===== Contact Form ===== */
.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 2rem;
}

.contact-info {
    background-color: var(--light-bg);
    padding: 2rem;
    border-radius: 10px;
}

.contact-info h3 {
    color: var(--primary-green);
    margin-bottom: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-item .icon {
    font-size: 1.5rem;
    color: var(--primary-green);
    min-width: 30px;
}

.contact-form {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--dark-text);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(45, 134, 89, 0.1);
}

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

.form-group .error {
    color: #e74c3c;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: none;
}

.form-group.error input,
.form-group.error textarea {
    border-color: #e74c3c;
}

.form-group.error .error {
    display: block;
}

.map-placeholder {
    width: 100%;
    height: 300px;
    background-color: var(--light-bg);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--light-text);
    margin-top: 2rem;
}

/* ===== Footer ===== */
footer {
    background-color: var(--dark-text);
    color: var(--white);
    padding: 3rem 2rem 1rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.5rem;
    display: block;
}

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

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-green);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

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

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow);
        transition: var(--transition);
    }

    .nav-menu.active {
        left: 0;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero {
        padding: 3rem 1.5rem;
    }

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

    .hero .tagline {
        font-size: 1.2rem;
    }

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

    .cta-buttons .btn {
        width: 100%;
    }

    section {
        padding: 3rem 1.5rem;
    }

    .focus-areas,
    .activities-grid {
        grid-template-columns: 1fr;
    }

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

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

    .donate-methods {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    nav {
        padding: 0 1rem;
    }

    .logo {
        font-size: 1.2rem;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .section-title h2 {
        font-size: 1.75rem;
    }

    .donate-content {
        padding: 2rem 1.5rem;
    }
}

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

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }