/* General Styles */
:root {
    --primary-color: #0D47A1;
    --secondary-color: #E3F2FD;
    --accent-color: #F57C00;
    --text-color: #333;
    --light-text-color: #f8f8f8;
    --border-color: #ccc;
    --background-color: #fff;
    --light-background-color: #f4f7fa;
    --focus-outline-color: var(--accent-color);
    --font-family-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    --font-size-base: 1.125rem; /* ~18px */
    --line-height-base: 1.6;
    --spacing-unit: 1rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-color);
    background-color: var(--light-background-color);
    display: flex; /* For sidebar layout */
    min-height: 100vh; /* Ensure body takes full viewport height */
    flex-direction: column; /* Allow footer to push down */
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--primary-color);
    margin-top: calc(2 * var(--spacing-unit));
    margin-bottom: var(--spacing-unit);
    line-height: 1.2;
}

h1 { font-size: 2.5rem; } /* ~40px */
h2 { font-size: 2rem; }   /* ~32px */
h3 { font-size: 1.75rem; }/* ~28px */
h4 { font-size: 1.5rem; } /* ~24px */
h5 { font-size: 1.25rem; }/* ~20px */
h6 { font-size: 1rem; }   /* ~16px */

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

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease, text-decoration 0.3s ease;
}

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

ul, ol {
    margin-left: 1.5rem;
    margin-bottom: var(--spacing-unit);
}

li {
    margin-bottom: 0.5rem;
}

b, strong {
    font-weight: 700;
}

em, i {
    font-style: italic;
}

/* Layout: Sidebar Structure */
.container {
    display: flex;
    flex: 1; /* Allow content to grow and push footer down */
}

aside.sidebar {
    width: 250px; /* Fixed width sidebar */
    flex-shrink: 0;
    background-color: var(--primary-color);
    color: var(--light-text-color);
    padding: var(--spacing-unit) 0;
    box-shadow: 2px 0 5px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
    z-index: 10; /* Ensure sidebar is above content */
}

aside.sidebar .logo {
    text-align: center;
    padding: calc(2 * var(--spacing-unit)) var(--spacing-unit);
    margin-bottom: var(--spacing-unit);
}

aside.sidebar .logo a {
    color: var(--light-text-color);
    font-size: 1.8rem;
    font-weight: 700;
    text-decoration: none;
    display: block;
}

aside.sidebar .logo a:hover {
    color: var(--secondary-color);
    text-decoration: none;
}

main.content {
    flex-grow: 1;
    padding: calc(2 * var(--spacing-unit));
    background-color: var(--background-color);
    overflow-x: hidden; /* Prevent horizontal scroll from content */
}

.content-wrapper {
    max-width: 1200px; /* Max width for content within main */
    margin: 0 auto;
    padding: var(--spacing-unit);
}

/* Navigation: Sidebar Tabs */
nav.sidebar-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

nav.sidebar-nav li {
    margin-bottom: 0;
}

nav.sidebar-nav a {
    display: block;
    padding: 0.8rem calc(1.5 * var(--spacing-unit));
    color: var(--light-text-color);
    text-decoration: none;
    border-left: 4px solid transparent;
    transition: background-color 0.3s ease, color 0.3s ease, border-left-color 0.3s ease;
}

nav.sidebar-nav a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--secondary-color);
    border-left-color: var(--accent-color);
}

nav.sidebar-nav a.active {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    border-left-color: var(--accent-color);
    font-weight: 600;
}

/* Buttons */
.button, button, input[type="submit"] {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background-color: var(--accent-color);
    color: var(--light-text-color);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: var(--font-size-base);
    text-align: center;
    text-decoration: none;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.button:hover, button:hover, input[type="submit"]:hover {
    background-color: darken(var(--accent-color), 10%);
    transform: translateY(-2px);
}

.button.secondary {
    background-color: var(--primary-color);
}

.button.secondary:hover {
    background-color: darken(var(--primary-color), 10%);
}

/* Cookie Banner Styles */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--primary-color);
    color: var(--light-text-color);
    padding: var(--spacing-unit) calc(2 * var(--spacing-unit));
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    z-index: 1000;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
}

.cookie-banner p {
    margin: 0;
    flex-grow: 1;
    margin-right: var(--spacing-unit);
}

.cookie-banner .cookie-buttons {
    display: flex;
    gap: var(--spacing-unit);
    flex-shrink: 0;
}

.cookie-banner .button {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
    background-color: var(--accent-color);
    color: var(--light-text-color);
    border-radius: 3px;
}

.cookie-banner .button.secondary {
    background-color: transparent;
    border: 1px solid var(--light-text-color);
    color: var(--light-text-color);
}

.cookie-banner .button.secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Form Styles */
form {
    background-color: var(--background-color);
    padding: calc(1.5 * var(--spacing-unit));
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    margin-bottom: calc(2 * var(--spacing-unit));
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group input[type="tel"]:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(var(--accent-color), 0.2);
    outline: none;
}

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

.form-group input[type="checkbox"],
.form-group input[type="radio"] {
    margin-right: 0.5rem;
}

.form-group .checkbox-label {
    display: inline-block;
    font-weight: normal;
    color: var(--text-color);
}

/* Table Styles */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: calc(2 * var(--spacing-unit));
    background-color: var(--background-color);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    border-radius: 8px;
    overflow: hidden; /* For rounded corners with borders */
}

table th,
table td {
    padding: 1rem 1.2rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

table thead th {
    background-color: var(--primary-color);
    color: var(--light-text-color);
    font-weight: 600;
    position: sticky;
    top: 0; /* Make headers sticky for scrollable tables */
    z-index: 1;
}

table tbody tr:nth-child(even) {
    background-color: var(--secondary-color);
}

table tbody tr:hover {
    background-color: rgba(var(--accent-color), 0.1);
}

table tfoot td {
    font-weight: 600;
    background-color: var(--light-background-color);
    border-top: 2px solid var(--primary-color);
}

/* Details/Summary Styles */
details {
    background-color: var(--light-background-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: var(--spacing-unit);
    padding: 1rem;
}

summary {
    display: block; /* Ensures the arrow is styled consistently */
    font-weight: 600;
    cursor: pointer;
    color: var(--primary-color);
    padding: 0.5rem 0;
    outline: none; /* Remove default focus outline */
}

summary::-webkit-details-marker {
    display: none; /* Hide default arrow */
}

summary::before {
    content: "►"; /* Custom arrow */
    display: inline-block;
    margin-right: 0.8rem;
    transition: transform 0.2s ease;
    color: var(--accent-color);
}

details[open] summary::before {
    transform: rotate(90deg);
}

details[open] {
    padding-bottom: 1rem;
}

details p {
    margin-top: var(--spacing-unit);
    margin-bottom: 0;
    padding-left: 1.5rem; /* Indent content */
}

/* Aside Styles */
aside.info-box {
    background-color: var(--secondary-color);
    border-left: 5px solid var(--accent-color);
    padding: calc(1.5 * var(--spacing-unit));
    margin-bottom: calc(2 * var(--spacing-unit));
    border-radius: 0 8px 8px 0;
    color: var(--primary-color);
    font-style: italic;
}

aside.info-box h3 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 0.5rem;
}

/* Blockquote Styles */
blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: calc(1.5 * var(--spacing-unit));
    margin: calc(2 * var(--spacing-unit)) 0;
    font-style: italic;
    color: var(--text-color);
    background-color: var(--light-background-color);
    padding-top: var(--spacing-unit);
    padding-bottom: var(--spacing-unit);
    border-radius: 0 5px 5px 0;
}

blockquote p {
    margin-bottom: 0.5rem;
}

blockquote footer {
    font-style: normal;
    font-size: 0.9em;
    color: #666;
    margin-top: var(--spacing-unit);
}

/* Definition List Styles */
dl {
    margin-bottom: calc(2 * var(--spacing-unit));
}

dt {
    font-weight: 600;
    color: var(--primary-color);
    margin-top: var(--spacing-unit);
    margin-bottom: 0.5rem;
    font-size: 1.1em;
}

dd {
    margin-left: 1.5rem;
    margin-bottom: var(--spacing-unit);
}

/* Footer Styles */
footer {
    background-color: var(--primary-color);
    color: var(--light-text-color);
    padding: calc(2 * var(--spacing-unit)) 0;
    text-align: center;
    margin-top: auto; /* Push footer to the bottom */
}

footer .footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-unit);
}

footer p {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

footer a {
    color: var(--secondary-color);
    text-decoration: none;
}

footer a:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

/* Media Queries for Responsiveness */
@media (max-width: 992px) {
    body {
        font-size: 1rem; /* Adjust base font size for smaller screens */
    }

    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.5rem; }

    aside.sidebar {
        width: 200px; /* Slightly smaller sidebar */
    }

    main.content {
        padding: var(--spacing-unit);
    }

    .content-wrapper {
        padding: 0;
    }
}

@media (max-width: 768px) {
    .container {
        flex-direction: column; /* Stack sidebar and content */
    }

    aside.sidebar {
        width: 100%;
        height: auto;
        padding: var(--spacing-unit) 0;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        position: static; /* Remove fixed positioning */
        order: -1; /* Place sidebar (now header-like) at the top */
    }

    aside.sidebar .logo {
        padding: var(--spacing-unit);
        margin-bottom: 0;
    }

    nav.sidebar-nav ul {
        display: flex; /* Make nav items horizontal */
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
        padding: 0 var(--spacing-unit);
    }

    nav.sidebar-nav li {
        flex-grow: 1; /* Allow items to grow */
        max-width: 150px; /* Limit width */
    }

    nav.sidebar-nav a {
        border-left: none; /* Remove left border */
        border-bottom: 4px solid transparent; /* Add bottom border as active indicator */
        text-align: center;
        padding: 0.6rem 1rem;
    }

    nav.sidebar-nav a:hover {
        border-left-color: transparent;
        border-bottom-color: var(--accent-color);
    }

    nav.sidebar-nav a.active {
        border-left-color: transparent;
        border-bottom-color: var(--accent-color);
    }

    main.content {
        padding: var(--spacing-unit);
    }

    .cookie-banner {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-unit);
        padding-top: var(--spacing-unit);
        padding-bottom: var(--spacing-unit);
    }

    .cookie-banner p {
        margin-right: 0;
        margin-bottom: 0.5rem;
    }

    .cookie-banner .cookie-buttons {
        width: 100%;
        justify-content: stretch;
    }

    .cookie-banner .button {
        flex-grow: 1;
        padding: 0.8rem;
    }

    table {
        display: block;
        overflow-x: auto;
        white-space: nowrap; /* Prevent text wrapping in cells */
        -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
    }

    table thead {
        /* Optional: Hide headers on small screens if layout becomes too cramped */
        /* display: none; */
    }

    table td, table th {
        white-space: normal; /* Allow text to wrap within cells again if needed, but the overflow-x handles the table */
        min-width: 120px; /* Ensure a minimum width for columns */
    }
}

@media (max-width: 480px) {
    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.3rem; }

    .cookie-banner .button {
        font-size: 0.8rem;
        padding: 0.6rem;
    }
}