:root {
    /* DigestHarvzx Digital Identity Palette */
    --bg-main: #F8FAFC;
    --surface: #FFFFFF;
    --deep-ink: #0F172A; /* Midnight Navy */
    --data-blue: #2563EB; /* Electric Blue */
    --signal-green: #10B981; /* Emerald Green */
    --cyan-accent: #06B6D4;
    --violet-accent: #7C3AED;
    --grid-line: #E2E8F0;
    --alert-amber: #F59E0B;
    --muted-text: #475569;

    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    --container-width: 1200px;
    --header-height: 80px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-main);
    color: var(--deep-ink);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--deep-ink);
}

h1 { font-size: 2.5rem; letter-spacing: -0.02em; }
h2 { font-size: 2rem; border-bottom: 1px solid var(--grid-line); padding-bottom: var(--spacing-xs); margin-bottom: var(--spacing-md);}
h3 { font-size: 1.5rem; }
p { margin-bottom: var(--spacing-sm); color: var(--muted-text); }
a { color: var(--data-blue); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--deep-ink); }
strong { color: var(--deep-ink); font-weight: 600; }

/* Layout & Grid System */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--grid-line);
}

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

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--spacing-md); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-md); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--spacing-md); }

/* Components */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--data-blue);
    color: var(--surface);
    border: 1px solid var(--data-blue);
    border-radius: 0; /* Square edges for the grid aesthetic */
    font-weight: 500;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s ease;
}

.btn:hover {
    background-color: var(--deep-ink);
    border-color: var(--deep-ink);
    color: var(--surface);
}

.btn-outline {
    background-color: transparent;
    color: var(--deep-ink);
    border-color: var(--grid-line);
}

.btn-outline:hover {
    background-color: var(--grid-line);
    color: var(--deep-ink);
}

.card {
    background: var(--surface);
    border: 1px solid var(--grid-line);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.card-header {
    border-bottom: 1px solid var(--grid-line);
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.card-title {
    font-size: 1.25rem;
    color: var(--deep-ink);
    margin-bottom: 0;
}

.card-body {
    flex-grow: 1;
}

/* Header & Navigation */
header {
    position: sticky;
    top: 0;
    background-color: var(--surface);
    border-bottom: 1px solid var(--grid-line);
    z-index: 1000;
    min-height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0.5rem 0;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--deep-ink);
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-mark {
    width: 32px;
    height: 32px;
    display: block;
}

.logo-text {
    display: flex;
    align-items: baseline;
}

.logo-ext {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--data-blue);
    margin-left: 2px;
}

/* Footer specific overrides */
footer .logo {
    color: var(--surface);
}
footer .logo-ext {
    color: var(--cyan-accent);
}

nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 0.25rem;
    align-items: center;
    border: 1px solid var(--grid-line);
    padding: 0.25rem;
    background-color: var(--surface);
    flex-wrap: wrap;
}

nav ul li a {
    color: var(--muted-text);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.4rem 0.75rem;
    border: 1px solid transparent;
    transition: all 0.2s ease;
    display: inline-block;
    white-space: nowrap;
}

nav ul li a:hover, nav ul li a.active {
    color: var(--deep-ink);
    border-color: var(--grid-line);
    background-color: var(--bg-main);
}

/* Overriding inline margin on the CTA button due to new flex gap */
nav .btn {
    margin-left: 0.5rem !important;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-icon {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--deep-ink);
    position: relative;
}

.mobile-menu-icon::before, .mobile-menu-icon::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: var(--deep-ink);
    left: 0;
}

.mobile-menu-icon::before { top: -6px; }
.mobile-menu-icon::after { bottom: -6px; }

/* Hero Section */
.hero {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-main);
    background-image: 
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: center center;
    border-bottom: 1px solid var(--grid-line);
}

.hero-content {
    background: var(--surface);
    padding: var(--spacing-lg);
    border: 1px solid var(--grid-line);
    max-width: 800px;
}

/* Service Finder */
.service-finder {
    background: var(--surface);
    border: 1px solid var(--grid-line);
    padding: var(--spacing-md);
    margin-top: -2rem;
    position: relative;
    z-index: 10;
}

.finder-options {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-top: var(--spacing-sm);
}

.finder-btn {
    background: var(--bg-main);
    border: 1px solid var(--grid-line);
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--muted-text);
}
.finder-btn:hover, .finder-btn.active {
    background: var(--data-blue);
    color: var(--surface);
    border-color: var(--data-blue);
}

.finder-result {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-main);
    border-left: 4px solid var(--data-blue);
    display: none;
}

/* Data Maturity Framework */
.maturity-stage {
    display: flex;
    border: 1px solid var(--grid-line);
    background: var(--surface);
    margin-bottom: var(--spacing-sm);
}

.stage-number {
    background: var(--bg-main);
    padding: var(--spacing-md);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--data-blue);
    border-right: 1px solid var(--grid-line);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
}

.stage-content {
    padding: var(--spacing-md);
}

/* Workflow Example (CSS Diagram) */
.workflow-diagram {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--surface);
    border: 1px solid var(--grid-line);
    overflow-x: auto;
}

.workflow-node {
    border: 1px solid var(--grid-line);
    padding: 1rem;
    text-align: center;
    background: var(--bg-main);
    min-width: 150px;
}

.workflow-node h4 { margin-bottom: 0.25rem; font-size: 1rem;}
.workflow-node p { margin-bottom: 0; font-size: 0.8rem; }

.workflow-arrow {
    flex-grow: 1;
    height: 1px;
    background: var(--grid-line);
    position: relative;
    margin: 0 1rem;
    min-width: 50px;
}
.workflow-arrow::after {
    content: '';
    position: absolute;
    right: 0;
    top: -4px;
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
    border-left: 6px solid var(--grid-line);
}

/* Dashboard Wireframe */
.dashboard-wireframe {
    display: grid;
    grid-template-columns: 250px 1fr;
    grid-template-rows: 60px 1fr;
    gap: var(--spacing-sm);
    height: 400px;
    border: 1px solid var(--grid-line);
    background: var(--bg-main);
    padding: var(--spacing-sm);
}
.dw-sidebar { background: var(--surface); border: 1px solid var(--grid-line); grid-row: 1 / -1; padding: 1rem;}
.dw-header { background: var(--surface); border: 1px solid var(--grid-line); padding: 1rem; display: flex; justify-content: space-between; align-items: center;}
.dw-content { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-sm); }
.dw-card { background: var(--surface); border: 1px solid var(--grid-line); padding: 1rem; display: flex; flex-direction: column;}
.dw-card-wide { grid-column: 1 / -1; }
.dw-placeholder-chart { flex-grow: 1; background: var(--bg-main); margin-top: 1rem; border: 1px dashed var(--grid-line);}
.dw-line { height: 10px; background: var(--grid-line); margin-bottom: 0.5rem; width: 80%; }
.dw-line.short { width: 40%; }

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--deep-ink);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--grid-line);
    background-color: var(--surface);
    font-family: inherit;
    color: var(--deep-ink);
}

.form-control:focus {
    outline: none;
    border-color: var(--data-blue);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

/* Footer */
footer {
    background-color: var(--deep-ink);
    color: var(--surface);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

footer h4 {
    color: var(--surface);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 0.5rem;
}

footer p {
    color: rgba(255,255,255,0.7);
}

footer a {
    color: rgba(255,255,255,0.7);
}

footer a:hover {
    color: var(--surface);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

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

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: rgba(255,255,255,0.5);
    font-size: 0.85rem;
}

.footer-legal-links {
    display: flex;
    gap: var(--spacing-md);
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--surface);
    border-top: 1px solid var(--grid-line);
    padding: var(--spacing-md);
    box-shadow: 0 -4px 12px rgba(0,0,0,0.05);
    z-index: 9999;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-content {
    max-width: 800px;
}

.cookie-content p {
    margin-bottom: 0;
    font-size: 0.9rem;
}

.cookie-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Utilities */
.text-center { text-align: center; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-lg); }

.tag {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    background: var(--bg-main);
    border: 1px solid var(--grid-line);
    font-size: 0.75rem;
    color: var(--muted-text);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

/* Responsive */
@media (max-width: 1200px) {
    .container { max-width: 100%; }
}

@media (max-width: 992px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    
    header nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--surface);
        border-bottom: 1px solid var(--grid-line);
        flex-direction: column;
        padding: var(--spacing-md);
        display: none;
        box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    }
    
    header nav.active {
        display: flex;
    }
    
    header nav ul {
        flex-direction: column;
        width: 100%;
        gap: 0.5rem;
        border: none;
        padding: 0;
        background-color: transparent;
    }

    nav ul li {
        width: 100%;
    }

    nav ul li a {
        display: block;
        width: 100%;
        text-align: center;
        border: 1px solid var(--grid-line);
    }
    
    header nav .btn {
        margin-top: var(--spacing-sm);
        margin-left: 0 !important;
        width: 100%;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .cookie-banner {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .cookie-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .cookie-actions button {
        width: 100%;
    }
    
    .workflow-diagram {
        flex-direction: column;
    }
    
    .workflow-arrow {
        width: 1px;
        height: 30px;
        margin: 1rem 0;
    }
    
    .workflow-arrow::after {
        top: auto;
        bottom: -4px;
        left: -4px;
        border-left: 4px solid transparent;
        border-right: 4px solid transparent;
        border-top: 6px solid var(--grid-line);
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
    .hero { padding: var(--spacing-md) 0; }
    .hero-content { padding: var(--spacing-md); }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: var(--spacing-sm); text-align: center; }
    .footer-legal-links { flex-wrap: wrap; justify-content: center; }
    .stage-number { width: 50px; font-size: 1.2rem; padding: var(--spacing-sm); }
    .dashboard-wireframe { grid-template-columns: 1fr; grid-template-rows: auto auto 1fr; }
    .dw-sidebar { display: none; } /* Hide sidebar wireframe on mobile */
}