/* 
    Design System: The Architectural Sentinel
    Strict 0px border-radius, monolithic typography, and high-contrast tonal layering.
*/

:root {
    /* Color Palette */
    --primary: #303B66; /* Deep Navy */
    --secondary: #4283DD; /* Sky Blue */
    --secondary-container: #5ea1fa;
    --on-primary: #ffffff;
    --on-secondary: #ffffff;
    
    /* Surface Hierarchy */
    --bg: #ffffff;
    --surface: #ffffff;
    --surface-container-low: #f8fafc;
    --surface-container-highest: #edf2f7;
    --surface-dim: #e2e8f0;
    --on-surface: #111c2d;
    --on-surface-variant: #4a5568;
    
    /* Layout Constants */
    --max-width: 1200px;
    --max-article-width: 800px;
}

/* Reset & Foundation */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg);
    color: var(--on-surface);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

a {
    text-decoration: none;
    transition: all 0.3s ease;
}

/* 0px Radius Enforcement */
* {
    border-radius: 0 !important;
}

/* Typography Hierarchy */
h1, h2, h3, h4 {
    text-transform: uppercase;
    font-weight: 900;
    letter-spacing: -0.02em;
}

.main-headline {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    line-height: 1.1;
    margin-bottom: 2rem;
}

.section-heading {
    font-size: 1.5rem;
    margin: 3rem 0 1.5rem 0;
    border-bottom: 2px solid var(--secondary);
    display: inline-block;
    padding-bottom: 0.5rem;
}

/* Advertorial Top Bar */
.top-advertorial-bar {
    background-color: var(--primary);
    color: var(--on-primary);
    text-align: center;
    font-size: 0.6875rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    padding: 0.5rem 0;
    top: 0;
    z-index: 1000;
}

/* Header */
.main-header {
    background-color: #ffffff;
    border-bottom: 1px solid var(--surface-dim);
    padding: 1.5rem 2rem;
}

.header-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-logo {
    max-height: 40px;
}

.header-cta-btn {
    background-color: var(--secondary);
    color: var(--on-secondary);
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.header-cta-btn:hover {
    background-color: var(--secondary-container);
}

/* Main Sections */
.content-wrapper {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 4rem 2rem;
}

.hero-metadata {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.metadata-label {
    background-color: var(--secondary);
    color: #fff;
    font-size: 0.6875rem;
    font-weight: 800;
    padding: 0.25rem 0.75rem;
    text-transform: uppercase;
}

.metadata-status {
    color: var(--primary);
    font-size: 0.6875rem;
    font-weight: 800;
    text-transform: uppercase;
}

.byline {
    border-top: 1px solid var(--surface-dim);
    padding-top: 1rem;
    font-size: 0.875rem;
    color: var(--primary);
}

.author {
    font-weight: 700;
}

/* Visual Anchor */
.visual-anchor {
    padding: 0 2rem 4rem 2rem;
}

.anchor-grid {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr;
}

.visual-image-container {
    aspect-ratio: 16/7;
    background-color: var(--surface-container-highest);
}

.visual-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.visual-callout {
    background-color: var(--primary);
    color: #fff;
    padding: 2rem;
    display: flex;
    align-items: center;
}

.quote {
    font-size: 1.25rem;
    font-weight: 500;
    font-style: italic;
    line-height: 1.4;
}

/* Article Layout */
.article-body {
    max-width: var(--max-width);
    margin: 4rem auto;
    padding: 0 2rem;
}

.content-grid {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 4rem;
}

.intro-paragraph {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--on-surface);
    margin-bottom: 2rem;
}

.main-article-content p {
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
    color: var(--on-surface-variant);
}

/* Sidebar & Metrics */
.sidebar-block {
    background-color: var(--surface-container-low);
    padding: 1.5rem;
    border-left: 4px solid var(--secondary);
}

.sidebar-title {
    font-size: 0.6875rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.metric-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.metric-bar {
    height: 4px;
    background-color: var(--surface-container-highest);
}

.bar-fill {
    height: 100%;
    background-color: var(--secondary);
}

/* Data Block */
.data-block {
    background-color: var(--surface-container-highest);
    padding: 3rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 3rem 0;
}

.data-value {
    display: block;
    font-size: 2rem;
    font-weight: 900;
    color: var(--on-surface);
}

.data-label {
    font-size: 0.6875rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.05em;
}

/* Highlight Box */
.highlight-box {
    background-color: var(--primary);
    color: #ffffff;
    padding: 4rem;
    margin-top: 4rem;
}

.highlight-title {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.highlight-box p {
    color: rgba(255, 255, 255, 0.9) !important;
}

/* CTA Section */
.cta-container {
    padding: 6rem 2rem;
}

.cta-outer-border {
    max-width: 900px;
    margin: 0 auto;
    border: 2px solid var(--primary);
    padding: 0.5rem;
}

.cta-inner-content {
    background-color: #ffffff;
    padding: 4rem 2rem;
    text-align: center;
}

.cta-offer-logo {
    max-width: 180px;
    margin: 0 auto 2rem;
    outline: 2px solid var(--secondary);
    outline-offset: 10px;
}

.cta-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 1.5rem;
}

.cta-text {
    font-size: 1.125rem;
    color: var(--on-surface-variant);
    max-width: 650px;
    margin: 0 auto 2.5rem;
}

.main-cta-btn {
    background-color: var(--secondary);
    color: #fff;
    padding: 1.5rem 3rem;
    font-size: 1.25rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: inline-block;
    box-shadow: 0 0 0 4px #fff, 0 0 0 8px var(--secondary);
}

.main-cta-btn:hover {
    background-color: var(--secondary-container);
    transform: translateY(-2px);
}

/* Disclaimer Area */
.disclaimer-area {
    background-color: var(--surface-dim);
    padding: 3rem 2rem;
    text-align: center;
}

.disclaimer-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.disclaimer-text {
    font-size: 0.75rem;
    color: var(--on-surface-variant);
    opacity: 0.8;
    line-height: 1.8;
}

/* Footer */
.main-footer {
    background-color: var(--surface-container-low);
    padding: 4rem 2rem;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
}

.footer-nav {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.footer-nav a {
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--primary);
    border-bottom: 2px solid transparent;
}

.footer-nav a:hover {
    color: var(--secondary);
    border-bottom-color: var(--secondary);
}

.footer-contact-details {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--on-surface-variant);
}

.contact-header {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.footer-bottom {
    border-top: 1px solid var(--surface-dim);
    padding-top: 2rem;
    text-align: center;
}

.copyright {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--primary);
    opacity: 0.6;
}

/* Responsive Adjustments */
@media (max-width: 960px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
    .sidebar {
        display: none;
    }
    .anchor-grid {
        grid-template-columns: 1fr;
    }
    .visual-callout {
        padding: 2rem;
    }
    .main-headline {
        font-size: 2.5rem;
    }
}