/* ==========================================================================
   CSS Variables - Update these to change site colors globally
   ========================================================================== */
:root {
    /* Brand Colors */
    --dominant-color: #ffffff;
    --primary-color: #2b6cb0;
    --accent-1: #ebf8ff;
    --accent-2: #e2e8f0;
    
    /* Text Colors */
    --text-main: #333333;
    --text-muted: #4a5568;
    --text-light: #718096;
    
    /* Backgrounds */
    --bg-light: #f7fafc;
    --bg-dark: #1a202c;
    --bg-dark-text: #f7fafc;
}

/* ==========================================================================
   Base Styles & Reset
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    line-height: 1.6;
    color: var(--text-main);
    background-color: var(--dominant-color);
}

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

.container-fluid {
    width: 100%;
    padding: 0 20px;
}

section {
    padding: 80px 0;
}

h1, h2, h3, h4 {
    margin-bottom: 20px;
    color: var(--text-main);
}

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

/* Background Helpers */
.bg-light { background-color: var(--bg-light); }
.bg-dark { background-color: var(--bg-dark); color: var(--bg-dark-text); }
.bg-dark h2, .bg-dark h4 { color: var(--bg-dark-text); }

/* ==========================================================================
   Navigation
   ========================================================================== */
.navbar {
    background-color: var(--dominant-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
    color: var(--primary-color);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 20px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--primary-color);
}

/* ==========================================================================
   Hero & Split Layouts (Alternating text/image)
   ========================================================================== */
.hero, .split-layout {
    display: flex;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    gap: 60px;
}

.hero { padding: 80px 20px; }

.split-layout.reverse {
    flex-direction: row-reverse;
}

.hero-content, .split-text {
    flex: 1;
}

.hero h1 {
    font-size: 3rem;
    line-height: 1.2;
    color: var(--primary-color);
}

.hero .subtitle, .split-text p {
    font-size: 1.25rem;
    margin-bottom: 20px;
    color: var(--text-muted);
}

.hero .tagline {
    font-size: 1.1rem;
    color: var(--text-main);
}

.hero-image, .split-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.hero-image img, .split-image img {
    width: 100%;
    max-width: 600px;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    object-fit: cover;
}

/* ==========================================================================
   Service List (Inside Split Layout)
   ========================================================================== */
.service-list .service-item {
    margin-bottom: 30px;
}
.service-list h3 { margin-bottom: 10px; }
.service-list p { font-size: 1rem; margin-bottom: 0; }

/* ==========================================================================
   Grids & Cards
   ========================================================================== */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.card {
    background: var(--dominant-color);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

/* ==========================================================================
   Approach Grid
   ========================================================================== */
.approach-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.approach-item h4 {
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
    display: inline-block;
    text-transform: lowercase;
}

/* ==========================================================================
   Field Notes & Media Log
   ========================================================================== */
.note-block {
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--accent-2);
}

.note-block:last-child {
    border-bottom: none;
}

.editor-note {
    margin-top: 10px;
    color: var(--text-light);
    font-size: 0.9rem;
}

.case-study-link {
    display: inline-block;
    margin-top: 15px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
}
.case-study-link:hover { text-decoration: underline; }

.media-list { list-style: none; }

.media-item {
    padding: 20px 0;
    border-bottom: 1px solid var(--accent-2);
}

.media-item:last-child { border-bottom: none; }
.media-item h3 a { color: inherit; text-decoration: none; }
.media-item h3 a:hover { color: var(--primary-color); }

.media-date {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 5px;
    display: block;
}

/* ==========================================================================
   Buttons & Footer
   ========================================================================== */
footer {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 60px 0;
}

footer h2 { color: white; }

.btn {
    display: inline-block;
    background-color: white;
    color: var(--primary-color);
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    margin: 20px 0;
    transition: background-color 0.2s;
}

.btn:hover { background-color: var(--accent-1); }
.copyright { color: rgba(255, 255, 255, 0.8); font-size: 0.9rem; margin-top: 20px; }

/* ==========================================================================
   CSS Infinite Scrolling Logo Carousel
   ========================================================================== */
.logo-carousel {
    overflow: hidden;
    white-space: nowrap;
    position: relative;
    padding: 40px 0;
    width: 100%;
}

/* Apply gradient fade to edges for a smoother look (Optional) */
.logo-carousel::before,
.logo-carousel::after {
    content: "";
    position: absolute;
    top: 0;
    width: 100px;
    height: 100%;
    z-index: 2;
}
.logo-carousel::before {
    left: 0;
    background: linear-gradient(to right, var(--dominant-color) 0%, transparent 100%);
}
.logo-carousel::after {
    right: 0;
    background: linear-gradient(to left, var(--dominant-color) 0%, transparent 100%);
}

.logo-track {
    display: inline-flex;
    gap: 40px; /* Space between logos */
    animation: scroll-left 30s linear infinite;
}

.logo-item {
    background-color: var(--accent-1);
    padding: 30px 40px;
    border-radius: 8px;
    color: var(--text-muted);
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 150px;
}

.logo-item img {
    max-width: 120px; /* Limits the width of the logos */
    max-height: 80px; /* Limits the height of the logos */
    object-fit: contain; /* Ensures the logo isn't stretched or squished */
    display: block;
}

/* Pause scroll on hover */
.logo-carousel:hover .logo-track {
    animation-play-state: paused;
}

@keyframes scroll-left {
    0% { transform: translateX(0); }
    /* Moves exactly half the width of the track (which is 1 set of the 11 logos) */
    100% { transform: translateX(calc(-50% - 20px)); } 
}

/* ==========================================================================
   Responsive Adjustments
   ========================================================================== */
@media (max-width: 768px) {
    .hero, .split-layout, .split-layout.reverse { 
        flex-direction: column; 
        text-align: center; 
    }
    .approach-grid { grid-template-columns: 1fr; }
    .nav-links { display: none; }
}