/* ==========================================================================
   CSS Variables for easy theming (Junior Devs: Change colors here!)
   ========================================================================== */
:root {
    /* Brand Colors */
    --color-primary: #0F4C81; /* Professional deep blue */
    --color-primary-dark: #0A365C;
    --color-accent: #F2A900; /* Engaging golden yellow */
    --color-accent-hover: #D99700;
    
    /* Neutral Colors */
    --color-text-main: #333333;
    --color-text-muted: #666666;
    --color-bg-light: #F8F9FA;
    --color-white: #FFFFFF;
    
    /* Typography */
    --font-primary: 'Inter', system-ui, -apple-system, sans-serif;
    
    /* Spacing & Layout */
    --max-width: 1200px;
    --transition-speed: 0.3s;
    --radius-md: 8px;
    --radius-lg: 12px;
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
/* Box sizing rules for easier layout math */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Smooth scrolling for anchor links */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text-main);
    line-height: 1.6;
    background-color: var(--color-white);
    /* Prevents horizontal scroll on mobile */
    overflow-x: hidden; 
}

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

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

/* Accessibility: Clear focus outlines for keyboard navigation */
a:focus-visible, button:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4 {
    color: var(--color-primary);
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 2.5rem); }
h3 { font-size: 1.5rem; }

p {
    margin-bottom: 1rem;
}

/* ==========================================================================
   Layout Helpers
   ========================================================================== */
.container {
    width: 90%;
    max-width: var(--max-width);
    margin: 0 auto;
}

.section-padding {
    padding: 5rem 0;
}

.bg-light {
    background-color: var(--color-bg-light);
}

.text-center {
    text-align: center;
}

.section-header {
    margin-bottom: 3rem;
}

.section-header p {
    color: var(--color-text-muted);
    font-size: 1.125rem;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-text-main); /* Dark text on yellow for WCAG contrast */
}

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

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

.btn-secondary:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
}

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

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

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
    background-color: var(--color-white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

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

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.nav-list {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--color-text-main);
    font-weight: 500;
}

.nav-link:hover {
    color: var(--color-accent);
}

/* Mobile Menu Button - Hidden on Desktop */
.mobile-nav-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 2000;
}

.hamburger, .hamburger::before, .hamburger::after {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-primary);
    transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

.hamburger::before, .hamburger::after {
    content: '';
    position: absolute;
}

.hamburger::before { transform: translateY(-8px); }
.hamburger::after { transform: translateY(8px); }

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
    padding: 6rem 0;
    background-color: var(--color-bg-light);
    /* Optional: Add a subtle background pattern or gradient here later */
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    align-items: center;
}

/* Using a simple placeholder box until real image is added */
.image-placeholder {
    width: 100%;
    height: 300px;
    background-color: #E2E8F0;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* ==========================================================================
   How It Works & Services (CSS Grid)
   ========================================================================== */
/* CSS Grid makes making responsive columns incredibly easy! 
   auto-fit + minmax creates automatic columns that wrap on small screens */
.steps-grid, .services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.step-card, .service-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform var(--transition-speed) ease;
    border: 1px solid #E2E8F0;
}

.step-card:hover, .service-card:hover {
    transform: translateY(-5px);
}

.step-number {
    width: 40px;
    height: 40px;
    background-color: var(--color-accent);
    color: var(--color-text-main);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.how-it-works-section .step-card {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 1rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    padding-top: 4rem;
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.site-footer h4 {
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.site-footer a {
    color: #CBD5E1;
}

.site-footer a:hover {
    color: var(--color-white);
    text-decoration: underline;
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.text-white { color: var(--color-white); }

.footer-bottom {
    background-color: #05223A;
    padding: 1.5rem 0;
    text-align: center;
    font-size: 0.875rem;
    color: #94A3B8;
}

/* ==========================================================================
   Media Queries (Responsive Adjustments)
   ========================================================================== */

/* Tablet & Desktop Layout specific adjustments */
@media (min-width: 768px) {
    .about-container {
        flex-direction: row;
    }
    
    .about-text, .about-image-wrapper {
        flex: 1;
    }
}

/* Mobile specifically */
@media (max-width: 767px) {
    .mobile-nav-toggle {
        display: block;
    }

    .primary-navigation {
        position: fixed;
        inset: 0 0 0 30%; /* Covers right 70% of screen */
        background: var(--color-white);
        padding: min(20vh, 10rem) 2em;
        transform: translateX(100%);
        transition: transform var(--transition-speed) ease-in-out;
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
    }

    /* Class applied via JS to show menu */
    .primary-navigation[data-visible="true"] {
        transform: translateX(0);
    }

    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }

    /* Animate Hamburger to X */
    .mobile-nav-toggle[aria-expanded="true"] .hamburger {
        background: transparent;
    }
    .mobile-nav-toggle[aria-expanded="true"] .hamburger::before {
        transform: rotate(45deg);
    }
    .mobile-nav-toggle[aria-expanded="true"] .hamburger::after {
        transform: rotate(-45deg);
    }
}