:root {
    /* Color Scheme */
    --color-bg-light: #f4f5f7;
    --color-bg-dark: #2e2e2e;
    --color-text-light: #333;
    --color-text-dark: #f0f0f0;
    --color-primary: #004085;
    --color-primary-hover: #0056b3;
    --color-border: #ddd;
    --color-accent: #17a2b8;
    --color-highlight: #ffffcc;

    /* Spacing & Sizing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Typography */
    --font-family: 'Roboto', sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 0.85rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 2rem;

    /* Transition */
    --transition-speed: 0.3s;
}

[data-theme="light"] {
    --bg-color: var(--color-bg-light);
    --text-color: var(--color-text-light);
    --border-color: var(--color-border);
    --header-bg: #e9ecef;
    --footer-bg: #f8f9fa;
    --link-color: var(--color-primary);
}

[data-theme="dark"] {
    --bg-color: var(--color-bg-dark);
    --text-color: var(--color-text-dark);
    --border-color: #555;
    --header-bg: #3e3e3e;
    --footer-bg: #444;
    --link-color: #77caff;
}

/* Layout to keep footer at bottom */
html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}
body {
    display: flex;
    flex-direction: column;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

main {
    flex: 1 0 auto;
}

footer {
    flex-shrink: 0;
}

/* Accessibility skip link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-accent);
    color: #fff;
    padding: var(--spacing-sm);
    z-index: 100;
    transition: top var(--transition-speed);
}
.skip-link:focus {
    top: 0;
}

/* Header */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--header-bg);
    border-radius: 5px;
    margin-top: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    max-width: 900px;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
}
.app-title {
    font-size: var(--font-size-xl);
    font-weight: bold;
    color: var(--color-primary);
    margin: 0;
    text-align: center;
}
.app-subtitle {
    font-size: var(--font-size-lg);
    color: #6c757d;
    margin-top: var(--spacing-xs);
    margin-bottom: 0;
    text-align: center;
}
.header-content {
    text-align: center;
    flex: 1;
}

.theme-toggle-container {
    position: fixed;       /* Stays fixed in the viewport */
    top: 50%;              /* Positions at 50% down from the top */
    right: 1rem;           /* Adjust horizontal position as needed */
    transform: translateY(-50%); /* Centers the button vertically at midpoint */
    z-index: 9999;         /* Ensure it appears above other elements if needed */
}


.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-color);
}

.theme-toggle:hover {
    color: var(--link-color);
}


/* Main Container */
.container {
    max-width: 900px;
    width: 100%;
    margin: var(--spacing-md) auto var(--spacing-md) auto;
    padding: 0 var(--spacing-md);
}

.search-section {
    margin-bottom: var(--spacing-md);
}
.instruction-text {
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-md);
    color: #6c757d;
}

.clearable-input {
    position: relative;
}
.clearable-input .form-control {
    padding-right: 2.5rem;
}
.clearable-input .clear-btn {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
    color: #999;
    cursor: pointer;
    display: none;
    background: none;
    border: none;
}
.clearable-input .clear-btn:hover {
    color: var(--text-color);
}

/* Suggestions */
.suggestions-container {
    position: absolute;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    width: 100%;
    z-index: 1000;
    max-height: 200px;
    overflow-y: auto;
    display: none;
}
.suggestion-item {
    padding: var(--spacing-sm);
    cursor: pointer;
    transition: background-color var(--transition-speed);
}
.suggestion-item:hover,
.suggestion-item.highlight {
    background-color: #f1f1f1;
}

/* Parcel Details */
.parcel-details > .card {
    margin-top: var(--spacing-md);
    border: none;
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}
.card-header {
    font-weight: bold;
    font-size: var(--font-size-lg);
    background-color: var(--color-primary);
    color: #fff;
    border-radius: 10px 10px 0 0;
    padding: var(--spacing-sm) var(--spacing-md);
}
.card-body p {
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: baseline;
}
.card-body p strong {
    margin-right: var(--spacing-xs);
}

.table-responsive {
    overflow-x: auto;
}
.table th, .table td {
    text-align: center;
    vertical-align: middle;
    padding: var(--spacing-sm);
    white-space: normal;
    word-wrap: break-word;
}

/* Tentative Assessment Increase */
#tentative-assessment-increase {
    text-align: center;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: 6px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

/* Projection */
.projection-header {
    background-color: #e0f7f9;
    border-left: 5px solid var(--color-accent);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-md);
    font-weight: 600;
    color: #005662;
    border-radius: 6px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}
.projection-block {
    margin-bottom: var(--spacing-md);
}

.note-container {
    margin-top: var(--spacing-md);
    font-size: var(--font-size-sm);
}
.note-content {
    background-color: #f9f9f9;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: var(--spacing-md);
}

/* Toggle Projection Button */
#toggle-projection {
    font-size: var(--font-size-md);
    font-weight: bold;
    color: #ffffff;
    background: linear-gradient(90deg, #ff5722, #ff8a50);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 8px;
    cursor: pointer;
    transition: transform var(--transition-speed), background-color var(--transition-speed);
    animation: pulse 2s infinite;
    border: none;
}
#toggle-projection:hover {
    background: linear-gradient(90deg, #e64a19, #ff7043);
    transform: scale(1.05);
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(255,87,34,0.7); }
    70% { box-shadow: 0 0 0 10px rgba(255,87,34,0); }
    100% { box-shadow: 0 0 0 0 rgba(255,87,34,0); }
}

/* Recent Payment Section */
#recent-payment-section {
    background-color: var(--footer-bg);
    padding: var(--spacing-sm);
    border-radius: 5px;
    margin-bottom: var(--spacing-sm);
}

/* Structures and Iframes */
#structures-section .card-header,
#tax-and-sewer-section .card-header {
    background-color: var(--header-bg);
    color: var(--text-color);
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--font-size-md);
}
#structures-iframe,
#tax-and-sewer-iframe {
    width: 100%;
    border: 1px solid var(--border-color);
}

#toggle-tax-and-sewer {
    color: var(--link-color);
    text-decoration: none;
    font-size: var(--font-size-sm);
}
#toggle-tax-and-sewer:hover {
    text-decoration: underline;
}

/* Footer */
.footer-section {
    background-color: var(--footer-bg);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-md);
    text-align: center;
    font-size: 0.75rem;
    border-radius: 5px;
    margin-top: var(--spacing-xl);
    transition: background-color var(--transition-speed), color var(--transition-speed);
    color: #555;
    line-height: 1.4;
    max-width: 900px;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
}

.footer-heading {
    font-size: 0.9rem;
    font-weight: bold;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-text {
    margin-bottom: var(--spacing-sm);
    text-align: justify;
    color: #666;
    line-height: 1.3;
}

.footer-list {
    list-style: disc;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    text-align: left;
    color: #666;
    line-height: 1.3;
}

.footer-list li {
    margin-bottom: 4px;
}

.footer-credits-text {
    margin-top: var(--spacing-md);
    font-weight: bold;
    font-size: 0.8rem;
    color: #555;
    text-align: center;
}

.footer-support {
    margin-top: var(--spacing-xs);
    font-size: 0.75rem;
    color: #666;
}

.footer-link {
    color: var(--link-color);
    font-weight: bold;
    text-decoration: none;
    transition: color var(--transition-speed);
}

.footer-link:hover {
    text-decoration: underline;
    color: var(--color-primary-hover);
}

/* Floating Button */
.floating-btn {
    position: fixed;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    background-color: #f7b42c;
    color: #fff;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 50px;
    font-weight: bold;
    text-decoration: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    font-size: var(--font-size-md);
    z-index: 1000;
    transition: background-color var(--transition-speed);
}
.floating-btn:hover {
    background-color: #f3a21c;
}

/* Modal */
.modal-content {
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}
.modal-header {
    background-color: var(--color-primary);
    color: #fff;
    border-bottom: none;
}
.modal-footer {
    border-top: none;
}
.modal-body p {
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .app-title {
        font-size: 1.5rem;
    }
    .table th, .table td {
        font-size: var(--font-size-sm);
        padding: var(--spacing-xs);
    }
}

/* Visibility for clear button */
#address:valid ~ .clear-btn,
#address:not(:placeholder-shown) ~ .clear-btn {
    display: inline;
}