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

:root {
    --primary-color: #2A4E96;
    --primary-dark: #1e3a6f;
    --secondary-color: #5a7fb8;
    --neutral-dark: #333333;
    --neutral-medium: #666666;
    --neutral-light: #f5f5f5;
    --white: #ffffff;
    --text-dark: #2c2c2c;
}

body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

/* ========================================
   Skip Link for Accessibility
   ======================================== */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--primary-color);
    color: var(--white);
    padding: 8px 16px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* ========================================
   Header & Logo
   ======================================== */
header {
    background-color: var(--white);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
}

.logo-container {
    text-align: center;
    padding: 30px 20px;
    order: 1;
}

.logo-container a {
    display: inline-block;
    transition: opacity 0.3s ease;
}

.logo-container a:hover {
    opacity: 0.8;
}

.logo-container a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 4px;
    border-radius: 4px;
}

.logo-container img {
    max-width: 300px;
    height: auto;
    width: 100%;
    display: block;
    /* Recommended logo dimensions: 300px wide (any height, maintains aspect ratio) */
}

/* ========================================
   Navigation
   ======================================== */
nav {
    background-color: var(--primary-color);
    position: relative;
    order: 2;
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 18px 20px;
    position: absolute;
    right: 0;
    top: 0;
    z-index: 2000;
}

.nav-toggle:focus {
    outline: 2px solid var(--white);
    outline-offset: -2px;
}

.nav-menu {
    list-style: none;
    display: flex;
    justify-content: center;
    margin: 0;
    padding: 0;
    transition: none;
}

.nav-item {
    position: relative;
}

.nav-item > a {
    color: var(--white);
    text-decoration: none;
    padding: 18px 24px;
    display: block;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.nav-item > a:hover,
.nav-item > a:focus {
    background-color: var(--primary-dark);
    outline: none;
}

/* Dropdown Menu - Desktop */
.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--white);
    min-width: 220px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
    z-index: 1000;
    list-style: none;
    padding: 0;
    margin: 0;
    pointer-events: none;
    display: block;
}

.nav-item:hover .dropdown,
.nav-item:focus-within .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.dropdown li a {
    color: var(--text-dark);
    padding: 12px 20px;
    display: block;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.dropdown li a:hover,
.dropdown li a:focus {
    background-color: var(--neutral-light);
    outline: none;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    height: 500px;
    /* Hero Image Dimensions: 1200px x 500px (or larger, 12:5 ratio recommended) */
    background: linear-gradient(rgba(42, 78, 150, 0.6), rgba(42, 78, 150, 0.6)),
                url('../images/care-assistant.webp');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-align: center;
}

.hero-content {
    max-width: 800px;
    padding: 20px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.hero p {
    font-size: 1.3rem;
    font-weight: 400;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
}

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

/* ========================================
   Featured Boxes Section
   ======================================== */
.featured-section {
    padding: 60px 0;
    background-color: var(--neutral-light);
}

.featured-boxes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.featured-box {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    text-align: center;
}

.featured-box i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.featured-box h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.featured-box p {
    color: var(--neutral-medium);
    line-height: 1.8;
}

/* ========================================
   About Section
   ======================================== */
.about-section {
    padding: 80px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 25px;
}

.about-text p {
    color: var(--neutral-medium);
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-text .btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 14px 32px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: background-color 0.3s ease;
    margin-top: 10px;
}

.about-text .btn:hover,
.about-text .btn:focus {
    background-color: var(--primary-dark);
    outline: 2px solid var(--primary-dark);
    outline-offset: 2px;
}

.about-image {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.about-image img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    display: block;
    /* About Image Dimensions: 4:3 aspect ratio (e.g., 800px x 600px, 1200px x 900px) */
}

/* ========================================
   Testimonials Section
   ======================================== */
.testimonials-section {
    padding: 80px 0;
    background-color: var(--neutral-light);
}

.testimonials-section h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 50px;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    position: relative;
}

.testimonial-card i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.testimonial-card p {
    color: var(--neutral-medium);
    font-style: italic;
    line-height: 1.8;
    margin-bottom: 20px;
}

.testimonial-author {
    font-weight: 600;
    color: var(--primary-color);
    font-style: normal;
}

/* ========================================
   Footer
   ======================================== */
footer {
    background-color: var(--neutral-dark);
    color: var(--white);
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.footer-section p {
    color: #cccccc;
    line-height: 1.8;
    text-decoration: none;
}

.footer-section a {
    color: #cccccc;
    line-height: 1.8;
    text-decoration: underline;
}

.footer-section a:hover,
.footer-section a:focus {
    color: var(--white);
    text-decoration: none;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 15px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

.social-links a:hover,
.social-links a:focus {
    background-color: var(--secondary-color);
    outline: 2px solid var(--white);
    outline-offset: 2px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #555;
    color: #cccccc;
}

.footer-bottom a {
    color: var(--white);
    text-decoration: none;
}

.footer-bottom a:hover,
.footer-bottom a:focus {
    text-decoration: underline;
}

/* ========================================
   Mobile Navigation Styles
   ======================================== */
@media screen and (max-width: 768px) {
    nav {
        order: 1;
    }

    .logo-container {
        order: 2;
    }

    .logo-container img {
        max-width: 250px;
    }

    nav {
        min-height: 56px;
    }

    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: var(--primary-color);
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        padding-top: 70px;
        transform: translateX(-100%);
        transition: transform 0.3s ease-in-out;
        z-index: 1500;
        overflow-y: auto;
        pointer-events: auto;
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-item {
        width: 100%;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }

    .nav-item > a {
        padding: 18px 30px;
        font-size: 1.1rem;
    }

    .dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background-color: rgba(0,0,0,0.2);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        pointer-events: auto;
        display: none;
    }

    .dropdown.active {
        max-height: 500px;
        display: block;
    }

    .dropdown li {
        border-bottom: 1px solid rgba(255,255,255,0.05);
    }

    .dropdown li:last-child {
        border-bottom: none;
    }

    .dropdown li a {
        color: var(--white);
        padding: 14px 30px 14px 50px;
        font-size: 1rem;
    }

    .dropdown li a:hover,
    .dropdown li a:focus {
        background-color: rgba(0,0,0,0.2);
    }

    .has-dropdown > a::after {
        content: '\f107';
        font-family: 'Font Awesome 6 Free';
        font-weight: 900;
        float: right;
        transition: transform 0.3s ease;
    }

    .has-dropdown.open > a::after {
        transform: rotate(180deg);
    }

    .nav-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: rgba(0,0,0,0.5);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
        z-index: 1400;
    }

    .nav-overlay.active {
        opacity: 1;
        visibility: visible;
    }
}

/* ========================================
   Tablet Responsive Styles
   ======================================== */
@media screen and (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .about-image {
        order: -1;
    }
}

/* ========================================
   Mobile Responsive Styles
   ======================================== */
@media screen and (max-width: 480px) {
    .footer-content {
        grid-template-columns: 1fr;
    }

    .hero {
        height: 400px;
    }

    .hero h1 {
        font-size: 1.6rem;
    }

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

    .about-text h2,
    .testimonials-section h2 {
        font-size: 2rem;
    }

    .logo-container img {
        max-width: 200px;
    }

    .featured-boxes {
        grid-template-columns: 1fr;
    }

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