:root {
    --dark-navy: #0A192F;
    --light-navy: #112240;
    --lightest-navy: #233554;
    --slate: #8892b0;
    --light-slate: #a8b2d1;
    --lightest-slate: #ccd6f6;
    --white: #e6f1ff;
    --green: #64FFDA;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --border-radius: 4px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--dark-navy);
    color: var(--slate);
    line-height: 1.6;
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    text-align: center;
}

header {
    padding: 40px 0;
}

.logo {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px rgba(100, 255, 218, 0.3));
}

header h1 {
    color: var(--lightest-slate);
    font-size: clamp(32px, 5vw, 50px);
    margin: 0 0 10px;
    font-weight: 700;
}

header .subtitle {
    color: var(--slate);
    font-size: clamp(16px, 3vw, 20px);
    max-width: 600px;
    margin: 0 auto;
}

main {
    padding: 20px 0;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.card {
    background-color: var(--light-navy);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: left;
    text-decoration: none;
    color: var(--slate);
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
    border: 1px solid var(--lightest-navy);
    box-shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
}

.card:hover {
    transform: translateY(-7px);
    box-shadow: 0 20px 30px -15px rgba(2, 12, 27, 0.7);
    border-color: var(--green);
}

.card-icon {
    color: var(--green);
    margin-bottom: 20px;
}

.card-icon svg {
    width: 40px;
    height: 40px;
}

.card h2 {
    color: var(--lightest-slate);
    font-size: 22px;
    margin: 0 0 10px;
}

.card p {
    font-size: 16px;
    margin: 0;
}

footer {
    padding: 40px 0;
    margin-top: 50px;
    font-size: 14px;
    color: var(--light-slate);
}

/* === Styles for Developer Resources Page === */

.breadcrumb {
    text-align: left;
    margin-bottom: 40px;
}

.breadcrumb a {
    color: var(--green);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    transition: color 0.2s ease-in-out;
}

.breadcrumb a:hover {
    color: var(--white);
}

.breadcrumb a svg {
    width: 18px;
    height: 18px;
    margin-right: 8px;
}

.page-header {
    text-align: left;
    border-bottom: 1px solid var(--lightest-navy);
    padding-bottom: 30px;
    margin-bottom: 40px;
}

.resource-section {
    text-align: left;
    margin-bottom: 50px;
}

.resource-section h2 {
    color: var(--lightest-slate);
    font-size: 24px;
    margin-bottom: 20px;
}

.resource-list {
    display: grid;
    gap: 15px;
}

.resource-item {
    background-color: var(--light-navy);
    border-radius: var(--border-radius);
    padding: 20px;
    text-decoration: none;
    display: flex;
    align-items: center;
    border: 1px solid transparent;
    transition: background-color 0.2s ease-in-out, border-color 0.2s ease-in-out;
}

.resource-item:hover {
    background-color: var(--lightest-navy);
    border-color: var(--green);
}

.resource-item.featured {
    border: 1px solid var(--green);
    background: linear-gradient(90deg, rgba(100, 255, 218, 0.1) 0%, rgba(100, 255, 218, 0) 100%);
}

.resource-icon {
    color: var(--green);
    margin-right: 20px;
    background-color: var(--lightest-navy);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.resource-icon svg {
    width: 24px;
    height: 24px;
}

.resource-content h3 {
    color: var(--lightest-slate);
    font-size: 18px;
    margin: 0 0 5px;
}

.resource-content p {
    color: var(--slate);
    font-size: 15px;
    margin: 0;
    line-height: 1.5;
}