/* Custom Properties / Variables (defined in <head> for FOUC prevention) */
    /* Root variables are now mostly handled by the inline  tag */

    /* Global Resets & Typography */
    *, *::before, *::after {
        box-sizing: border-box;
    }

    body {
        margin: 0;
        font-family: var(--font-body);
        color: var(--color-text-light);
        line-height: 1.6;
        background-color: var(--color-background-light);
        overflow-x: hidden; /* Prevent horizontal scroll */
    }

    /* Prevent body scroll when mobile nav is open */
    body.nav-open {
        overflow: hidden;
    }

    h1, h2, h3, h4, h5, h6 {
        font-family: var(--font-heading);
        color: var(--color-text-dark);
        margin-top: 0;
        line-height: 1.2;
        font-weight: 700;
    }

    h1 { font-size: 3.5rem; }
    h2 { font-size: 2.8rem; }
    h3 { font-size: 2.2rem; }
    h4 { font-size: 1.8rem; }

    p {
        margin-bottom: calc(1 * var(--spacing-unit));
    }

    a {
        text-decoration: none;
        color: var(--color-primary);
        transition: color var(--transition-speed);
    }

    a:hover {
        color: var(--color-secondary);
    }

    img {
        max-width: 100%;
        height: auto;
        display: block;
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: calc(2 * var(--spacing-unit));
    }

    .text-center {
        text-align: center;
    }

    .section-padding {
        padding: calc(5 * var(--spacing-unit)) 0;
    }

    .section-title {
        font-size: 2.8rem;
        margin-bottom: calc(1.5 * var(--spacing-unit));
        position: relative;
        padding-bottom: calc(0.5 * var(--spacing-unit));
    }

    .section-title::after {
        content: '';
        position: absolute;
        left: 50%;
        bottom: 0;
        transform: translateX(-50%);
        width: 80px;
        height: 4px;
        background-color: var(--color-secondary);
        border-radius: 2px;
    }

    .section-title:not(.text-center)::after {
        left: 0;
        transform: translateX(0);
    }

    .section-description {
        font-size: 1.1rem;
        max-width: 800px;
        margin: 0 auto calc(3 * var(--spacing-unit));
        color: var(--color-text-light);
    }

    .bg-primary { background-color: var(--color-primary); color: var(--color-background-white); }
    .bg-secondary { background-color: var(--color-secondary); color: var(--color-background-white); }
    .bg-accent { background-color: var(--color-accent); color: var(--color-text-dark); }
    .bg-dark { background-color: #1a3a30; color: var(--color-background-white); } /* Darker green for contrast */

    .bg-primary h2, .bg-dark h2, .bg-secondary h2 { color: var(--color-background-white); }
    .bg-primary .btn-secondary, .bg-dark .btn-secondary { color: var(--color-background-white); border-color: var(--color-background-white); }
    .bg-primary .btn-secondary:hover, .bg-dark .btn-secondary:hover { background-color: var(--color-background-white); color: var(--color-primary); }

    .btn-white {
        background-color: var(--color-background-white);
        color: var(--color-secondary);
        box-shadow: 0 4px 15px rgba(255, 255, 255, 0.4);
    }
    .btn-white:hover {
        background-color: #f0f0f0;
        color: var(--color-primary);
        box-shadow: 0 6px 20px rgba(255, 255, 255, 0.6);
    }
    .btn-white-outline {
        background-color: transparent;
        color: var(--color-background-white);
        border: 2px solid var(--color-background-white);
        box-shadow: 0 2px 8px rgba(255, 255, 255, 0.1);
    }
    .btn-white-outline:hover {
        background-color: var(--color-background-white);
        color: var(--color-secondary);
        box-shadow: 0 4px 12px rgba(255, 255, 255, 0.3);
        transform: translateY(-2px);
    }

    .btn-large {
        padding: calc(1 * var(--spacing-unit)) calc(2.5 * var(--spacing-unit));
        font-size: 1.1rem;
    }

    .btn-link {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        color: var(--color-primary);
        font-weight: 600;
        padding: 0;
        background: none;
        border: none;
        text-transform: none;
        letter-spacing: normal;
        box-shadow: none;
    }
    .btn-link:hover {
        color: var(--color-secondary);
        transform: translateX(3px); /* subtle slide */
        background: none;
        box-shadow: none;
    }
    .btn-link i {
        transition: transform var(--transition-speed);
    }

    .button-spacing {
        margin-top: calc(3 * var(--spacing-unit));
    }

    /* Header & Navigation */
    .main-header {
        position: fixed;
        width: 100%;
        top: 0;
        left: 0;
        z-index: 1000;
        background-color: rgba(255, 255, 255, 0.95);
        padding: calc(1 * var(--spacing-unit)) 0;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        transition: background-color var(--transition-speed), padding var(--transition-speed);
    }

    .main-header.sticky {
        padding: calc(0.75 * var(--spacing-unit)) 0;
        background-color: var(--color-background-white);
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }

    .header-content {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .logo {
        font-family: var(--font-heading);
        font-size: 1.8rem;
        font-weight: 700;
        color: var(--color-primary);
        transition: color var(--transition-speed);
    }

    .logo:hover {
        color: var(--color-secondary);
    }

    .main-nav .nav-list {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        gap: calc(2 * var(--spacing-unit));
    }

    .main-nav .nav-list a {
        color: var(--color-text-dark);
        font-weight: 500;
        position: relative;
        padding: 0.5rem 0;
    }

    .main-nav .nav-list a::after {
        content: '';
        position: absolute;
        left: 0;
        bottom: 0;
        width: 0;
        height: 2px;
        background-color: var(--color-secondary);
        transition: width var(--transition-speed);
    }

    .main-nav .nav-list a:hover::after,
    .main-nav .nav-list a.active::after {
        width: 100%;
    }

    .nav-cta {
        margin-left: calc(2 * var(--spacing-unit));
    }

    .hamburger {
        display: none;
        background: none;
        border: none;
        cursor: pointer;
        padding: 0;
        width: 30px;
        height: 24px;
        position: relative;
        z-index: 1100; /* Ensure it's above the nav list */
    }

    .hamburger .bar {
        display: block;
        width: 100%;
        height: 3px;
        background-color: var(--color-primary);
        border-radius: 2px;
        position: absolute;
        left: 0;
        transition: transform var(--transition-speed), opacity var(--transition-speed);
    }

    .hamburger .bar:nth-child(1) { top: 0; }
    .hamburger .bar:nth-child(2) { top: 50%; transform: translateY(-50%); }
    .hamburger .bar:nth-child(3) { bottom: 0; }

    .hamburger[aria-expanded="true"] .bar:nth-child(1) {
        transform: translateY(10px) rotate(45deg);
    }
    .hamburger[aria-expanded="true"] .bar:nth-child(2) {
        opacity: 1;
    }
    .hamburger[aria-expanded="true"] .bar:nth-child(3) {
        transform: translateY(-10px) rotate(-45deg);
    }

    /* Hero Section */
    .hero-section {
        position: relative;
        height: 100vh;
        min-height: 600px;
        background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.7)), url('images/image_12.jpg') no-repeat center center/cover;
        display: flex;
        align-items: center;
        text-align: center;
        color: var(--color-background-white);
        padding-top: 100px; /* Adjust for fixed header */
        isolation: isolate; /* To make overlay work correctly with z-index */
    }

    .hero-content {
        max-width: 900px;
        margin: 0 auto;
        position: relative;
        z-index: 2;
    }

    .hero-title {
        font-size: 4.5rem;
        margin-bottom: var(--spacing-unit);
        line-height: 1.1;
        color: var(--color-background-white);
        text-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
        animation: fadeInDown 1s ease-out forwards;
    }

    .hero-subtitle {
        font-size: 1.5rem;
        margin-bottom: calc(3 * var(--spacing-unit));
        max-width: 700px;
        margin-left: auto;
        margin-right: auto;
        color: #e0fbef; /* Lighter shade for subtitle */
        animation: fadeInUp 1s ease-out forwards 0.3s;
        opacity: 1;
    }

    .hero-actions {
        display: flex;
        justify-content: center;
        gap: calc(2 * var(--spacing-unit));
        animation: fadeInUp 1s ease-out forwards 0.6s;
        opacity: 1;
    }

    /* Grid Layouts */
    .grid-2-col {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: calc(4 * var(--spacing-unit));
        align-items: center;
    }

    /* About Section */
    .about-image img {
        border-radius: var(--border-radius-lg);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
        object-fit: cover;
        width: 100%;
        height: 400px;
    }

    .about-content h2 {
        margin-bottom: calc(1.5 * var(--spacing-unit));
    }

    .about-content .btn {
        margin-top: calc(2 * var(--spacing-unit));
    }

    /* Animals Section */
    .animal-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: calc(3 * var(--spacing-unit));
    }

    .animal-card {
        background-color: var(--color-background-white);
        border-radius: var(--border-radius-lg);
        overflow: hidden;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
        transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    }

    .animal-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
    }

    .card-image {
        position: relative;
        height: 250px;
        overflow: hidden;
    }

    .card-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease-in-out;
    }

    .animal-card:hover .card-image img {
        transform: scale(1.08);
    }

    .card-overlay {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: linear-gradient(to top, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0) 50%);
        opacity: 1;
        transition: opacity var(--transition-speed);
    }

    .animal-card:hover .card-overlay {
        opacity: 1;
    }

    .card-content {
        padding: calc(1.5 * var(--spacing-unit));
    }

    .card-content h3 {
        font-size: 1.8rem;
        margin-bottom: calc(0.5 * var(--spacing-unit));
    }

    .card-content p {
        font-size: 0.95rem;
        margin-bottom: calc(1 * var(--spacing-unit));
        color: var(--color-text-light);
    }

    /* Plan Your Visit Section */
    .visit-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: calc(3 * var(--spacing-unit));
    }

    .visit-card {
        background-color: var(--color-background-white);
        padding: calc(2.5 * var(--spacing-unit));
        border-radius: var(--border-radius-lg);
        text-align: center;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
        transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    }

    .visit-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
    }

    .visit-card .card-icon {
        font-size: 3.5rem;
        color: var(--color-secondary);
        margin-bottom: calc(1.5 * var(--spacing-unit));
        display: block;
    }

    .visit-card h3 {
        font-size: 2rem;
        margin-bottom: calc(1 * var(--spacing-unit));
    }

    .visit-card p {
        font-size: 0.95rem;
        margin-bottom: calc(1.5 * var(--spacing-unit));
    }

    /* Events Section */
    .events-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: calc(3 * var(--spacing-unit));
    }

    .event-card {
        background-color: var(--color-background-white);
        border-radius: var(--border-radius-lg);
        overflow: hidden;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
        transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    }

    .event-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
    }

    .event-image-wrapper {
        position: relative;
        height: 200px;
        overflow: hidden;
    }

    .event-image-wrapper img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease-in-out;
    }

    .event-card:hover .event-image-wrapper img {
        transform: scale(1.08);
    }

    .event-date {
        position: absolute;
        bottom: 15px;
        left: 15px;
        background-color: var(--color-secondary);
        color: var(--color-background-white);
        padding: 0.5rem 1rem;
        border-radius: var(--border-radius-md);
        font-weight: 600;
        font-size: 0.9rem;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    }

    .event-content {
        padding: calc(1.5 * var(--spacing-unit));
    }

    .event-content h3 {
        font-size: 1.8rem;
        margin-bottom: calc(0.5 * var(--spacing-unit));
    }

    .event-content p {
        font-size: 0.95rem;
        margin-bottom: calc(1 * var(--spacing-unit));
    }

    /* Conservation Section */
    .conservation-section .section-title {
        color: var(--color-background-white);
    }
    .conservation-section .section-title::after {
        background-color: var(--color-secondary);
    }

    .conservation-content {
        color: var(--color-background-white);
    }

    .conservation-content p {
        color: #e0fbef;
    }

    .conservation-image img {
        border-radius: var(--border-radius-lg);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        object-fit: cover;
        width: 100%;
        height: 400px;
    }

    .conservation-stats {
        display: flex;
        gap: calc(3 * var(--spacing-unit));
        margin-top: calc(3 * var(--spacing-unit));
        margin-bottom: calc(3 * var(--spacing-unit));
        flex-wrap: wrap;
    }

    .stat-item h3 {
        font-size: 3rem;
        color: var(--color-secondary);
        margin-bottom: 0.5rem;
    }

    .stat-item p {
        font-size: 1.1rem;
        font-weight: 500;
        color: var(--color-background-white);
    }

    /* CTA Donate Section */
    .cta-donate-section .cta-title {
        font-size: 3.2rem;
        color: var(--color-background-white);
        margin-bottom: calc(1.5 * var(--spacing-unit));
    }

    .cta-donate-section .cta-description {
        font-size: 1.3rem;
        max-width: 900px;
        margin: 0 auto calc(3 * var(--spacing-unit));
        color: var(--color-background-white);
    }

    .cta-actions {
        display: flex;
        justify-content: center;
        gap: calc(2 * var(--spacing-unit));
        flex-wrap: wrap;
    }

    /* Contact Section */
    .contact-list {
        list-style: none;
        padding: 0;
        margin-top: calc(2 * var(--spacing-unit));
        font-size: 1.1rem;
    }

    .contact-list li {
        margin-bottom: calc(1 * var(--spacing-unit));
        display: flex;
        align-items: flex-start;
        gap: 1rem;
    }

    .contact-list li i {
        color: var(--color-secondary);
        font-size: 1.4rem;
        width: 25px; /* align icons */
    }

    .social-links {
        margin-top: calc(2 * var(--spacing-unit));
        display: flex;
        gap: calc(1.5 * var(--spacing-unit));
    }

    .social-links a {
        color: var(--color-primary);
        font-size: 1.8rem;
        transition: transform var(--transition-speed);
    }

    .social-links a:hover {
        color: var(--color-secondary);
        transform: translateY(-3px);
    }

    .contact-form-wrapper {
        background-color: var(--color-background-white);
        padding: calc(3 * var(--spacing-unit));
        border-radius: var(--border-radius-lg);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    }

    .contact-form-wrapper .form-title {
        font-size: 2.2rem;
        margin-bottom: calc(2 * var(--spacing-unit));
        color: var(--color-primary);
        text-align: center;
    }

    .contact-form .form-group {
        margin-bottom: calc(1.5 * var(--spacing-unit));
    }

    .contact-form input[type="text"],
    .contact-form input[type="email"],
    .contact-form textarea {
        width: 100%;
        padding: calc(1 * var(--spacing-unit)) calc(1.2 * var(--spacing-unit));
        border: 1px solid #ddd;
        border-radius: var(--border-radius-md);
        font-family: var(--font-body);
        font-size: 1rem;
        transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
    }

    .contact-form input:focus,
    .contact-form textarea:focus {
        border-color: var(--color-secondary);
        outline: none;
        box-shadow: 0 0 0 3px rgba(244, 162, 97, 0.2);
    }

    .contact-form textarea {
        resize: vertical;
        min-height: 120px;
    }

    .contact-form .btn-primary {
        width: 100%;
        font-size: 1.1rem;
        padding: calc(1 * var(--spacing-unit));
    }

    .sr-only {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border-width: 0;
    }

    /* Newsletter Section */
    .newsletter-section {
        padding: calc(4 * var(--spacing-unit)) 0;
        background: linear-gradient(135deg, var(--color-primary), #1a3a30);
        color: var(--color-background-white);
        margin-top: calc(4 * var(--spacing-unit));
        border-radius: var(--border-radius-lg);
        margin-left: calc(2 * var(--spacing-unit));
        margin-right: calc(2 * var(--spacing-unit));
        max-width: 1200px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    }
    .newsletter-section .container {
        padding: calc(2 * var(--spacing-unit));
    }

    .newsletter-title {
        font-size: 2.5rem;
        color: var(--color-background-white);
        margin-bottom: calc(1 * var(--spacing-unit));
    }

    .newsletter-description {
        font-size: 1.1rem;
        max-width: 700px;
        margin: 0 auto calc(2 * var(--spacing-unit));
        color: #e0fbef;
    }

    .newsletter-form {
        display: flex;
        justify-content: center;
        gap: 1rem;
        max-width: 600px;
        margin: 0 auto;
        flex-wrap: wrap; /* allow wrapping on smaller screens */
    }

    .newsletter-form input[type="email"] {
        flex-grow: 1;
        padding: calc(1 * var(--spacing-unit)) calc(1.5 * var(--spacing-unit));
        border: none;
        border-radius: var(--border-radius-md);
        font-size: 1rem;
        background-color: rgba(255, 255, 255, 0.9);
        color: var(--color-text-dark);
        transition: background-color var(--transition-speed);
        min-width: 250px; /* Ensure input is not too small */
    }

    .newsletter-form input[type="email"]::placeholder {
        color: #888;
    }

    .newsletter-form input[type="email"]:focus {
        background-color: var(--color-background-white);
        outline: none;
        box-shadow: 0 0 0 3px rgba(244, 162, 97, 0.3);
    }

    .newsletter-form .btn-secondary {
        background-color: var(--color-secondary);
        color: var(--color-background-white);
        border: 2px solid var(--color-secondary);
        padding: calc(1 * var(--spacing-unit)) calc(2.5 * var(--spacing-unit));
    }

    .newsletter-form .btn-secondary:hover {
        background-color: #e09459; /* Slightly darker secondary */
        border-color: #e09459;
        color: var(--color-background-white);
    }

    /* Footer */
    .main-footer {
        background-color: #222;
        color: var(--color-background-white);
        padding-top: calc(5 * var(--spacing-unit));
        font-size: 0.95rem;
    }

    .footer-content {
        display: grid;
        grid-template-columns: 1.5fr repeat(3, 1fr);
        gap: calc(3 * var(--spacing-unit));
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding-bottom: calc(3 * var(--spacing-unit));
    }

    .footer-brand .logo {
        color: var(--color-background-white);
        font-size: 2rem;
        margin-bottom: calc(1 * var(--spacing-unit));
        display: block;
    }

    .footer-brand .logo:hover {
        color: var(--color-secondary);
    }

    .footer-brand p {
        color: rgba(255, 255, 255, 0.7);
        margin-bottom: calc(2 * var(--spacing-unit));
    }

    .footer-brand .social-links a {
        color: rgba(255, 255, 255, 0.7);
        font-size: 1.5rem;
    }

    .footer-brand .social-links a:hover {
        color: var(--color-secondary);
    }

    .footer-nav h4 {
        color: var(--color-secondary);
        font-size: 1.2rem;
        margin-bottom: calc(1.5 * var(--spacing-unit));
    }

    .footer-nav ul {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .footer-nav ul li {
        margin-bottom: calc(0.8 * var(--spacing-unit));
    }

    .footer-nav ul li a {
        color: rgba(255, 255, 255, 0.7);
        transition: color var(--transition-speed);
    }

    .footer-nav ul li a:hover {
        color: var(--color-secondary);
    }

    .footer-bottom {
        background-color: #1a1a1a;
        padding: calc(1.5 * var(--spacing-unit)) 0;
        text-align: center;
        margin-top: calc(3 * var(--spacing-unit));
    }

    .footer-bottom p {
        margin: 0;
        color: rgba(255, 255, 255, 0.5);
    }

    .footer-bottom a {
        color: rgba(255, 255, 255, 0.6);
    }

    .footer-bottom a:hover {
        color: var(--color-secondary);
    }

    /* Animations (Scroll Reveal) */
    .reveal {
        opacity: 1;
        transform: translateY(20px);
        transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    }
    .reveal.is-visible {
        opacity: 1;
        transform: translateY(0);
    }

    .reveal-left {
        opacity: 1;
        transform: translateX(-50px);
        transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    }
    .reveal-left.is-visible {
        opacity: 1;
        transform: translateX(0);
    }

    .reveal-right {
        opacity: 1;
        transform: translateX(50px);
        transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    }
    .reveal-right.is-visible {
        opacity: 1;
        transform: translateX(0);
    }

    .reveal-bottom {
        opacity: 1;
        transform: translateY(30px);
        transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    }
    .reveal-bottom.is-visible {
        opacity: 1;
        transform: translateY(0);
    }

    /* Hero specific animations */
    @keyframes fadeInDown {
        from { opacity: 1; transform: translateY(-30px); }
        to { opacity: 1; transform: translateY(0); }
    }

    @keyframes fadeInUp {
        from { opacity: 1; transform: translateY(30px); }
        to { opacity: 1; transform: translateY(0); }
    }


    /* Media Queries for Responsiveness */
    @media (max-width: 1024px) {
        .container {
            padding: calc(1.5 * var(--spacing-unit));
        }
        .main-nav .nav-list {
            gap: calc(1.5 * var(--spacing-unit));
        }
        .hero-title {
            font-size: 3.5rem;
        }
        .hero-subtitle {
            font-size: 1.3rem;
        }
        .section-title {
            font-size: 2.2rem;
        }
    }

    @media (max-width: 768px) {
        .main-header .nav-list {
            display: none;
            flex-direction: column;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background-color: var(--color-background-white);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            padding: calc(2 * var(--spacing-unit));
            text-align: center;
            opacity: 1;
            transform: translateY(-20px);
            transition: opacity 0.4s ease-out, transform 0.4s ease-out;
            border-top: 1px solid var(--color-accent);
        }

        .main-header .nav-list.active {
            display: flex;
            opacity: 1;
            transform: translateY(0);
        }

        .main-header .nav-list li {
            margin: calc(1 * var(--spacing-unit)) 0;
        }

        .main-header .nav-list a {
            font-size: 1.2rem;
            display: block;
            padding: 0.8rem 0;
            color: var(--color-text-dark);
        }

        .hamburger {
            display: block;
        }

        .nav-cta {
            display: none; /* Hide ticket button in mobile nav, or move it inside the menu */
        }

        .hero-section {
            padding-top: 80px;
            min-height: 500px;
        }

        .hero-title {
            font-size: 2.8rem;
        }

        .hero-subtitle {
            font-size: 1.1rem;
        }

        .hero-actions {
            flex-direction: column;
            gap: calc(1 * var(--spacing-unit));
        }

        .grid-2-col {
            grid-template-columns: 1fr;
            gap: calc(3 * var(--spacing-unit));
        }

        .about-image, .conservation-image {
            order: -1; /* Image on top for mobile */
        }

        .section-title {
            font-size: 2rem;
            text-align: center;
        }
        .section-title::after {
            left: 50%;
            transform: translateX(-50%);
        }

        .conservation-stats {
            flex-direction: column;
            align-items: center;
            gap: calc(1.5 * var(--spacing-unit));
        }

        .cta-donate-section .cta-title {
            font-size: 2.5rem;
        }

        .cta-actions {
            flex-direction: column;
        }

        .contact-form-wrapper {
            order: -1;
        }

        .footer-content {
            grid-template-columns: 1fr;
            text-align: center;
        }

        .footer-brand .social-links {
            justify-content: center;
        }

        .footer-nav .footer-col {
            margin-bottom: calc(2 * var(--spacing-unit));
        }

        .newsletter-form {
            flex-direction: column;
            align-items: center;
        }
        .newsletter-form input[type="email"],
        .newsletter-form .btn-secondary {
            width: 100%;
            max-width: 350px; /* Limit width for cleaner look */
        }
    }

    @media (max-width: 480px) {
        h1 { font-size: 2.5rem; }
        h2 { font-size: 1.8rem; }
        h3 { font-size: 1.5rem; }
        .hero-section {
            min-height: 400px;
        }
        .hero-title {
            font-size: 2.2rem;
        }
        .hero-subtitle {
            font-size: 1rem;
        }
        .btn-large {
            padding: calc(0.8 * var(--spacing-unit)) calc(1.8 * var(--spacing-unit));
            font-size: 1rem;
        }
        .section-padding {
            padding: calc(3 * var(--spacing-unit)) 0;
        }
        .animal-card, .event-card, .visit-card {
            box-shadow: 0 4px 10px rgba(0,0,0,0.05); /* Lighter shadow for smaller screens */
        }
        .newsletter-title {
            font-size: 1.8rem;
        }
    }


/* Visible state helpers */
+ .animate-fade-in-up.visible,
+ .animate-fade-in-left.visible,
+ .animate-fade-in-right.visible,
+ .animate-bounce-y.visible,
+ .section-scroll-animate.visible,
+ .text-animate-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Safe visibility overrides (auto-added) */
:root, html, body, main, header, footer, section, .container, .content {
  opacity: 1 !important;
  visibility: visible !important;
}
