/* ---------------------------------------------------
   1. CSS Variables & Global Resets
   --------------------------------------------------- */
:root {
    /* Main Palette from Logo */
    --color-primary-dark: #2C2C2C; /* Dark charcoal from logo text/icon */
    --color-background-light: #E0E0E0; /* Slightly lighter than the logo background, for content areas */
    --color-background-dark: #222222; /* A deeper dark for contrasting sections */
    --color-white: #FFFFFF;
    --color-black: #000000;

    /* Accent Color - Subtle Professional Blue */
    --color-accent: #3498DB; /* A standard professional blue */
    --color-accent-dark: #2980B9; /* Darker shade for hover states or active elements */
    --color-accent-light: #5DADE2; /* Lighter shade for subtle highlights if needed */

    /* Text Colors */
    --color-text-dark: var(--color-primary-dark);
    --color-text-light: var(--color-white);
    --color-text-grey: #666666; /* For secondary text */

    /* Fonts */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Roboto', sans-serif;

    /* Spacing */
    --spacing-xxs: 0.25rem;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;

    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;

    /* Transitions */
    --transition-speed: 0.3s;
}

/* Universal box-sizing for consistent layout */
*, *::before, *::after {
    box-sizing: border-box;
}

/* Basic body styling */
body {
    font-family: var(--font-body);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    color: var(--color-text-dark);
    background-color: var(--color-white); /* Start with a clean white background */
    scroll-behavior: smooth; /* Smooth scrolling for anchor links */
}

/* Remove default margin from common elements */
h1, h2, h3, h4, h5, h6, p, ul, ol, figure, blockquote {
    margin: 0;
    padding: 0;
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
    color: var(--color-accent);
    transition: color var(--transition-speed) ease;
}

a:hover {
    color: var(--color-accent-dark);
}

img {
    max-width: 100%;
    height: auto;
    display: block; /* Removes extra space below images */
}

/* ---------------------------------------------------
   2. Utility Classes
   --------------------------------------------------- */
.container {
    max-width: 1200px; /* Max width for content */
    margin: 0 auto; /* Center the container */
    padding: var(--spacing-lg); /* Padding on sides */
}

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: background-color var(--transition-speed) ease, 
                color var(--transition-speed) ease,
                box-shadow var(--transition-speed) ease, /* Add box-shadow to transition */
                transform var(--transition-speed) ease; /* Add transform to transition */
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: var(--color-accent-dark); /* Darker shade of blue on hover */
    color: var(--color-white); /* Explicitly keep text white, just in case something was overriding */
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2); /* Subtle shadow for a lifted effect */
    transform: translateY(-2px); /* Slight lift for extra oomph */
}

/* ---------------------------------------------------
   3. 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(--color-text-dark);
}

h1 {
    font-size: 3rem; /* Larger for hero */
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    position: relative; /* For a potential underline effect */
}

h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--color-accent);
    margin: var(--spacing-sm) auto 0;
    border-radius: var(--border-radius-sm);
}

h3 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-xs);
}

p {
    margin-bottom: var(--spacing-sm);
}

.tagline {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-text-grey);
    margin-bottom: var(--spacing-lg);
}

/* ---------------------------------------------------
   4. Header & Navigation
   --------------------------------------------------- */
.main-header {
    background-color: var(--color-white);
    padding: var(--spacing-xxs) 0; /* CHANGE THIS: from var(--spacing-md) to var(--spacing-sm) */
    border-bottom: 1px solid var(--color-background-light);
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

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

.logo img {
    height: 125px; /* CHANGE THIS: from 50px to 60px */
    width: auto;
}

.main-nav ul {
    display: flex;
    gap: var(--spacing-lg); /* Space between nav items */
}

.main-nav a {
    color: var(--color-text-dark);
    font-weight: 500;
    font-family: var(--font-heading);
    font-size: 1.5rem; /* ADD THIS LINE - Increase font size */
    position: relative;
    padding-bottom: 5px; /* Space for underline */
}

.main-nav a::after { /* Underline effect on hover */
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-speed) ease-out;
}

.main-nav a:hover::after {
    width: 100%;
}

.nav-toggle { /* Mobile nav button */
    display: none; /* Hidden on desktop */
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.hamburger { /* Hamburger icon styling */
    display: block;
    position: relative;
    width: 30px;
    height: 3px;
    background: var(--color-text-dark);
    border-radius: var(--border-radius-sm);
    transition: transform var(--transition-speed) ease-in-out;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 3px;
    background: var(--color-text-dark);
    border-radius: var(--border-radius-sm);
    transition: transform var(--transition-speed) ease-in-out, top var(--transition-speed) ease-in-out;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

/* JavaScript will add this class for active state */
.main-header.nav-open .hamburger {
    transform: rotate(45deg);
}

.main-header.nav-open .hamburger::before {
    top: 0;
    transform: rotate(90deg);
}

.main-header.nav-open .hamburger::after {
    top: 0;
    transform: rotate(90deg); /* This will be hidden by JS for X effect */
    opacity: 0; /* Hide the third bar for a clean X */
}

/* ---------------------------------------------------
   5. Sections - General Styling
   --------------------------------------------------- */
section {
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

section:nth-of-type(odd) { /* Alternate background colors for sections */
    background-color: var(--color-white);
}

section:nth-of-type(even) {
    background-color: var(--color-background-light);
}

/* ---------------------------------------------------
   6. Hero Section
   --------------------------------------------------- */
#hero.hero-section { /* Using both ID and Class increases specificity */
    background: var(--color-background-dark); /* Dark background for hero */
    color: var(--color-white);
    padding: var(--spacing-xxl) 0;
    min-height: 70vh; /* Make it fill more of the screen */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section h1 {
    font-size: 4.5rem; /* Even larger for impact */
    font-weight: normal;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    letter-spacing: -1px;
}

.hero-section .tagline {
    font-size: 1.8rem;
    color: var(--color-background-light); /* Lighter grey tagline */
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Subtle animation for hero text */
.hero-section h1, .hero-section .tagline, .hero-section .btn {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInSlideUp 1s ease-out forwards;
}

.hero-section .tagline {
    animation-delay: 0.2s;
}

.hero-section .btn {
    animation-delay: 0.4s;
}

@keyframes fadeInSlideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---------------------------------------------------
   7. Service Grid
   --------------------------------------------------- */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); /* Responsive grid */
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.service-item {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 10px rgba(0,0,0,0.08); /* Soft shadow */
    text-align: left;
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.service-item:hover {
    transform: translateY(-5px); /* Lift effect on hover */
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.service-item h3 {
    color: var(--color-accent); /* Service titles in accent blue */
    margin-bottom: var(--spacing-sm);
}

/* ---------------------------------------------------
   8. Contact Form
   --------------------------------------------------- */
.contact-section .container {
    max-width: 800px; /* Narrower container for form */
}

.contact-form {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-md);
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    text-align: left;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

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

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-background-light);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition-speed) ease;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2); /* Soft focus ring */
}

.contact-form .btn-primary {
    width: auto; /* Button doesn't need to be full width in form */
    padding: var(--spacing-sm) var(--spacing-lg);
}

.form-submission-message { /* For JS feedback on form submission */
    text-align: center;
    margin-top: var(--spacing-sm);
    font-weight: 600;
}

.contact-info {
    margin-top: var(--spacing-lg);
    font-size: 1.1rem;
    color: var(--color-text-grey);
}

.contact-info a {
    color: var(--color-accent);
    font-weight: 500;
}

/* ---------------------------------------------------
   9. Footer
   --------------------------------------------------- */
.main-footer {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
    text-align: center;
    font-size: 0.9rem;
}

.main-footer .container {
    display: flex;
    flex-direction: column; /* Stack on small screens */
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: var(--color-white);
    margin: 0 var(--spacing-xs);
    opacity: 0.8;
}

.footer-links a:hover {
    color: var(--color-accent);
    opacity: 1;
}

/* ---------------------------------------------------
   10. Responsive Design (Media Queries)
   --------------------------------------------------- */
@media (max-width: 900px) {
    .main-nav {
        /* Hide nav by default on smaller screens */
        display: none;
        position: absolute;
        top: 100%; /* Below the header */
        left: 0;
        width: 100%;
        background-color: var(--color-white);
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        padding: var(--spacing-sm) 0;
    }

    .main-nav ul {
        flex-direction: column; /* Stack nav items vertically */
        gap: var(--spacing-xs);
    }

    .main-nav li {
        width: 100%;
        text-align: center;
    }

    .main-nav a {
        display: block;
        padding: var(--spacing-sm);
        border-bottom: 1px solid var(--color-background-light);
    }

    .main-nav a:hover::after { /* No underline on mobile items */
        width: 0;
    }

    .main-header.nav-open .main-nav {
        display: block; /* Show nav when active */
    }

    .nav-toggle {
        display: block; /* Show hamburger menu */
    }

    .hero-section h1 {
        font-size: 3rem;
    }

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

    h2 {
        font-size: 2rem;
        margin-bottom: var(--spacing-lg);
    }
}

@media (max-width: 600px) {
    .container {
        padding: var(--spacing-md);
    }

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

    h2 {
        font-size: 1.8rem;
    }

    .footer-links {
        flex-direction: column; /* Stack footer links too */
    }

    .footer-links a {
        margin: var(--spacing-xs) 0;
    }
}

/* ---------------------------------------------------
   11. Scroll Animations (Optional - for slickness!)
   --------------------------------------------------- */
/* We'll use JavaScript for more advanced scroll animations,
   but for now, basic transitions are handled by CSS. */