:root {
    --primary-color: #00695C;
    --secondary-color: #E0F2F1;
    --accent-color: #E65100;
    --text-color: #333;
    --light-text-color: #f4f4f4;
    --background-color: #fff;
    --light-background-color: #f9f9f9;
    --border-color: #ddd;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --font-family-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
    --line-height-base: 1.6;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --border-radius-base: 4px;
}

/* Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 100%; /* Base for rem units */
}

body {
    font-family: var(--font-family-sans);
    line-height: var(--line-height-base);
    color: var(--text-color);
    background-color: var(--light-background-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex-grow: 1;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s ease, background-color 0.2s ease;
}

a:hover, a:focus-visible {
    color: var(--accent-color);
    text-decoration: underline;
}

button {
    font-family: var(--font-family-sans);
    cursor: pointer;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-base);
    background-color: var(--primary-color);
    color: var(--light-text-color);
    transition: background-color 0.2s ease, transform 0.1s ease;
}

button:hover {
    background-color: #004d40; /* Darker shade of primary */
}

button:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

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

h1 {
    font-size: 2.5rem;
    margin-top: var(--spacing-lg);
}

h2 {
    font-size: 2rem;
    margin-top: var(--spacing-lg);
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: var(--spacing-xs);
}

h3 {
    font-size: 1.5rem;
    margin-top: var(--spacing-md);
}

h4 {
    font-size: 1.25rem;
    margin-top: var(--spacing-md);
}

p {
    margin-bottom: var(--spacing-sm);
}

ul, ol {
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-lg);
}

ul li, ol li {
    margin-bottom: var(--spacing-xs);
}

/* Accessibility Focus States */
:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 3px;
    border-radius: var(--border-radius-base);
}

/* Layout - Dashboard Mode */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

.site-header {
    background-color: var(--primary-color);
    color: var(--light-text-color);
    padding: var(--spacing-sm) var(--spacing-md);
    box-shadow: var(--shadow-color) 0 2px 4px;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0;
}

.site-header h1 {
    margin: 0;
    font-size: 1.75rem;
}

.site-header h1 a {
    color: var(--light-text-color);
    text-decoration: none;
}

.site-header h1 a:hover {
    color: var(--secondary-color);
    text-decoration: none;
}

/* Main content area for dashboard layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-md);
}

.dashboard-card {
    background-color: var(--background-color);
    border-radius: var(--border-radius-base);
    box-shadow: var(--shadow-color) 0 4px 8px;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.dashboard-card:hover {
    transform: translateY(-5px);
    box-shadow: rgba(0, 0, 0, 0.15) 0 6px 12px;
}

.dashboard-card h3 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
}

.dashboard-card p {
    flex-grow: 1;
    margin-bottom: var(--spacing-md);
}

.dashboard-card .card-link {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--light-text-color);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-base);
    text-decoration: none;
    align-self: flex-start;
    transition: background-color 0.2s ease;
}

.dashboard-card .card-link:hover {
    background-color: #bf4200; /* Darker accent */
    text-decoration: none;
}

/* Navigation - Footer-Heavy */
.site-footer {
    background-color: var(--primary-color);
    color: var(--light-text-color);
    padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
    margin-top: var(--spacing-xl);
    text-align: center;
}

.site-footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0;
}

.footer-nav {
    list-style: none;
    padding: 0;
    margin-bottom: var(--spacing-md);
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
}

.footer-nav li a {
    color: var(--light-text-color);
    font-weight: bold;
    font-size: 1.1rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-base);
}

.footer-nav li a:hover, .footer-nav li a:focus-visible {
    color: var(--accent-color);
    background-color: rgba(255, 255, 255, 0.1);
    text-decoration: none;
}

.footer-info p {
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
    color: var(--secondary-color);
}

.footer-social-links {
    margin-top: var(--spacing-md);
}

.footer-social-links a {
    color: var(--light-text-color);
    margin: 0 var(--spacing-xs);
    font-size: 1.5rem;
}

.footer-social-links a:hover {
    color: var(--accent-color);
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    color: var(--light-text-color);
    padding: var(--spacing-md);
    text-align: center;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
}

.cookie-banner p {
    margin: 0;
    font-size: 0.95rem;
}

.cookie-banner a {
    color: var(--secondary-color);
    text-decoration: underline;
}

.cookie-banner button {
    background-color: var(--accent-color);
    color: var(--light-text-color);
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
    white-space: nowrap;
}

.cookie-banner button:hover {
    background-color: #bf4200;
}

@media (min-width: 768px) {
    .cookie-banner {
        flex-direction: row;
        justify-content: space-between;
        padding-left: var(--spacing-xl);
        padding-right: var(--spacing-xl);
    }
    .cookie-banner p {
        flex-grow: 1;
        text-align: left;
        margin-right: var(--spacing-md);
    }
}

/* Forms */
form {
    background-color: var(--background-color);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-base);
    box-shadow: var(--shadow-color) 0 2px 8px;
    margin-top: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: bold;
    color: var(--text-color);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-base);
    font-family: var(--font-family-sans);
    font-size: 1rem;
    background-color: var(--light-background-color);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--secondary-color);
    outline: none;
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-group input[type="checkbox"] {
    margin-right: var(--spacing-xs);
}

.form-group .checkbox-label {
    display: inline-block;
    font-weight: normal;
}

.form-group .error-message {
    color: #d32f2f; /* Material Red 700 */
    font-size: 0.85rem;
    margin-top: var(--spacing-xs);
    display: block;
}

form button[type="submit"] {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: bold;
    margin-top: var(--spacing-sm);
}

/* Tables */
.responsive-table-wrapper {
    overflow-x: auto;
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-color) 0 2px 4px;
    border-radius: var(--border-radius-base);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
    background-color: var(--background-color);
    min-width: 600px; /* Ensure table is wide enough for small screens */
}

table th, table td {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    text-align: left;
}

table thead th {
    background-color: var(--primary-color);
    color: var(--light-text-color);
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.9rem;
    border-color: #004d40;
}

table tbody tr:nth-child(odd) {
    background-color: var(--light-background-color);
}

table tbody tr:hover {
    background-color: var(--secondary-color);
    cursor: pointer;
}

/* Details/Summary */
details {
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-base);
    margin-bottom: var(--spacing-sm);
    box-shadow: var(--shadow-color) 0 1px 3px;
}

summary {
    display: block; /* Ensures full click area */
    padding: var(--spacing-md);
    font-weight: bold;
    cursor: pointer;
    background-color: var(--secondary-color);
    color: var(--primary-color);
    border-radius: var(--border-radius-base);
    position: relative;
    user-select: none; /* Prevent text selection on click */
}

summary:hover {
    background-color: #c8e6c9; /* Lighter shade of secondary */
}

summary:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
    border-radius: var(--border-radius-base);
}

/* Custom arrow for summary */
summary::marker {
    display: none;
}

summary::before {
    content: '+';
    position: absolute;
    right: var(--spacing-md);
    font-size: 1.2em;
    line-height: 1;
    transition: transform 0.2s ease;
}

details[open] summary::before {
    content: '-';
    transform: rotate(0deg);
}

details[open] summary {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

details > p {
    padding: var(--spacing-md);
    padding-top: var(--spacing-sm);
    margin-bottom: 0;
    border-top: 1px dashed var(--border-color);
}

/* Aside */
aside {
    background-color: var(--light-background-color);
    border-left: 4px solid var(--accent-color);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    border-radius: var(--border-radius-base);
    box-shadow: var(--shadow-color) 0 1px 4px;
    color: #555;
    font-size: 0.95rem;
}

aside h3 {
    color: var(--accent-color);
    margin-top: 0;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
}

/* Blockquote */
blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: var(--spacing-md);
    margin: var(--spacing-md) 0;
    font-style: italic;
    color: #555;
}

blockquote p:last-child {
    margin-bottom: 0;
}

/* Definition List */
dl {
    margin-bottom: var(--spacing-lg);
}

dt {
    font-weight: bold;
    color: var(--primary-color);
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    font-size: 1.1rem;
}

dd {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

/* Media Queries for Responsiveness */
@media (max-width: 767px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.3rem; }

    .site-header .container {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }

    .site-header h1 {
        font-size: 1.5rem;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
        padding: var(--spacing-sm);
    }

    .dashboard-card {
        padding: var(--spacing-sm);
    }

    .footer-nav {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .footer-nav li a {
        padding: var(--spacing-xs);
        font-size: 1rem;
    }

    form {
        padding: var(--spacing-md);
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Print Styles */
@media print {
    body {
        background-color: #fff;
        color: #000;
        font-family: serif;
        font-size: 12pt;
    }

    .site-header, .site-footer, .cookie-banner,
    .dashboard-card .card-link, form button[type="submit"] {
        display: none;
    }

    a {
        color: #000;
        text-decoration: underline;
    }

    a[href]:after {
        content: " (" attr(href) ")";
        font-size: 9pt;
        word-break: break-all;
    }

    .container {
        max-width: none;
        margin: 0;
        padding: 0;
    }

    h1, h2, h3, h4, h5, h6 {
        color: #000;
        border-bottom: none;
        padding-bottom: 0;
        margin-top: 1.5em;
        margin-bottom: 0.5em;
    }

    h1 { font-size: 24pt; }
    h2 { font-size: 18pt; }
    h3 { font-size: 14pt; }

    .dashboard-grid {
        display: block;
    }

    .dashboard-card {
        page-break-inside: avoid;
        border: 1px solid #ccc;
        margin-bottom: var(--spacing-md);
        box-shadow: none;
    }

    table {
        border: 1px solid #000;
        width: 100%;
        page-break-inside: auto;
    }

    table th, table td {
        border: 1px solid #999;
        padding: 0.5rem;
    }

    table thead {
        display: table-header-group;
    }

    table tr {
        page-break-inside: avoid;
        page-break-after: auto;
    }

    table tbody tr:nth-child(odd) {
        background-color: #eee;
    }

    aside, blockquote, details {
        border: 1px solid #ccc;
        background-color: #f0f0f0;
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
        page-break-inside: avoid;
    }

    aside {
        border-left: 4px solid #999;
    }

    blockquote {
        border-left: 4px solid #999;
    }
}