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

body {
    font-family: 'Arial', sans-serif; /* Common, accessible font */
    line-height: 1.7;
    color: #333333; /* Dark grey for good contrast */
    background-color: #f8f9fa; /* Very light grey background */
    font-size: 16px; /* Base font size */
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto; /* Centering content */
    overflow: hidden; /* Clearfix */
    padding: 0 15px; /* Padding for smaller screens */
}

/* Accessibility: Focus indicator for keyboard navigation */
a:focus, button:focus, input:focus, select:focus, textarea:focus {
    outline: 2px solid #007bff; /* Clear focus outline */
    outline-offset: 2px;
}

/* Header */
header {
    background: #004A7C; /* Deep Blue - Distinct Color Scheme */
    color: #ffffff; /* White text for contrast */
    padding: 1rem 0;
    border-bottom: 4px solid #003355; /* Darker shade for depth */
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header .logo {
    font-size: 1.7rem; /* Responsive font size */
    font-weight: 700; /* Bold */
}

header .phone-number {
    font-size: 1.1rem; /* Responsive font size */
    font-weight: 600;
}

/* Hero Section */
.hero {
    background: #e9ecef; /* Light grey, subtle contrast */
    padding: 2.5rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem; /* Prominent H1 */
    margin-bottom: 1rem;
    color: #004A7C; /* Main brand color */
    font-weight: 700;
}

.hero .problem {
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
    color: #c82333; /* Red for problem emphasis - good contrast */
}

.hero .solution {
    font-size: 1.15rem;
    margin-bottom: 1.5rem;
    color: #218838; /* Green for solution - good contrast */
}

.hero .solution strong {
    color: #1e7e34; /* Slightly darker green for emphasis */
}


.cta-button-container {
    margin-top: 1.5rem;
}

.cta-button {
    display: inline-block;
    background: #ff8c00; /* Bright Orange - Prominent CTA */
    color: #ffffff;
    padding: 14px 28px;
    text-decoration: none;
    font-size: 1.25rem;
    border-radius: 5px;
    font-weight: 700;
    transition: background-color 0.25s ease-in-out, transform 0.1s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.15);
}

.cta-button:hover, .cta-button:focus {
    background: #e07b00; /* Darker orange on hover/focus */
    transform: translateY(-1px); /* Subtle lift effect */
}

/* Services Section */
.services {
    padding: 2.5rem 0;
    text-align: center;
}

.services h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #004A7C; /* Main brand color */
    font-weight: 700;
}

.service-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); /* Responsive grid */
    gap: 1.5rem;
    margin-bottom: 2rem;
    text-align: left;
}

.service-item {
    background: #ffffff; /* White cards */
    padding: 1.5rem;
    border-radius: 6px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.08); /* Softer shadow */
    transition: transform 0.2s ease-in-out;
}

.service-item:hover {
    transform: translateY(-3px); /* Lift effect on card hover */
}

.service-item h3 {
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
    color: #003355; /* Darker shade of brand blue */
    font-weight: 600;
}

.responsive-image {
    max-width: 100%;
    height: auto; /* Maintain aspect ratio */
    width: 600px; /* Explicit width for browsers */
    border-radius: 8px;
    box-shadow: 0px 5px 15px rgba(0, 0, 0, 0.25); /* Clear shadow effect */
    margin-top: 1rem;
    display: block; /* Center image if container is text-align:center */
    margin-left: auto;
    margin-right: auto;
}

/* Why Choose Us Section */
.why-choose-us {
    background: #e0f2f7; /* Light Cyan/Blue - complementary color */
    padding: 2.5rem 0;
}

.why-choose-us h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: #004A7C;
    text-align: center;
    font-weight: 700;
}

.why-choose-us ul {
    list-style: none;
    padding: 0;
    max-width: 700px; /* Limit width for readability */
    margin: 0 auto; /* Center the list */
}

.why-choose-us ul li {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    padding-left: 30px; /* Space for custom bullet */
    position: relative;
}

.why-choose-us ul li::before {
    content: '✓'; /* Unicode checkmark */
    position: absolute;
    left: 0;
    color: #218838; /* Green checkmark */
    font-weight: bold;
    font-size: 1.2rem;
}

/* Footer */
footer {
    background: #343a40; /* Dark grey footer */
    color: #f8f9fa; /* Light text for contrast */
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 2rem;
}

footer p {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.footer-phone {
    font-weight: 600;
    font-size: 1.05rem;
}

/* Sticky CTA for Mobile */
.sticky-cta-mobile {
    display: none; /* Hidden by default */
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: #ff8c00; /* Same as main CTA */
    color: #ffffff;
    text-align: center;
    padding: 12px 0;
    font-size: 1.2rem;
    font-weight: 700;
    text-decoration: none;
    z-index: 1000; /* Ensure it's on top */
    box-shadow: 0 -2px 5px rgba(0,0,0,0.15);
}

/* Mobile-first Responsiveness */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        text-align: center;
    }

    header .logo {
        margin-bottom: 0.5rem;
        font-size: 1.5rem;
    }

    header .phone-number {
        font-size: 1rem;
    }

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

    .hero .problem, .hero .solution {
        font-size: 1.05rem;
    }

    .cta-button {
        padding: 12px 22px;
        font-size: 1.15rem;
    }

    .services h2, .why-choose-us h2 {
        font-size: 1.8rem;
    }

    .service-item h3 {
        font-size: 1.3rem;
    }

    .why-choose-us ul li {
        font-size: 1rem;
        padding-left: 25px;
    }
     .why-choose-us ul li::before {
        font-size: 1.1rem;
    }

    .sticky-cta-mobile {
        display: block; /* Show on mobile */
    }

    body {
        padding-bottom: 60px; /* Add padding to prevent overlap with sticky CTA */
    }
}

/* Further reduce font sizes for very small screens */
@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    header .logo {
        font-size: 1.3rem;
    }
    .services h2, .why-choose-us h2 {
        font-size: 1.6rem;
    }
}

/* Ensure CSS is under 15KB: This is a guideline. The above CSS is designed to be efficient.
   Minification will further reduce its size. Current unminified size is small.
   To check: copy-paste into a text editor and check file size.
   Online tools can also measure and minify.
*/