:root {
    /* Color Palette */
    --color-primary: #3498db;
    --color-primary-dark: #2980b9;
    --color-success: #28a745;
    --color-success-dark: #20883a;
    --color-danger: #e74c3c;
    --color-warning: #856404;

    /* Text Colors */
    --color-text-primary: #333;
    --color-text-secondary: #555;
    --color-text-tertiary: #7f8c8d;
    --color-text-muted: #95a5a6;
    --color-text-dark: #1a1a1a;
    --color-text-medium: #2c3e50;

    /* Background Colors */
    --color-bg-white: #fff;
    --color-bg-light: #f8f9fa;
    --color-bg-lighter: #fafafa;
    --color-bg-medium: #e9ecef;
    --color-bg-dark: #f0f0f0;

    /* Border Colors */
    --color-border-light: #eee;
    --color-border-medium: #e0e0e0;
    --color-border-dark: #ccc;
    --color-border-darker: #dee2e6;

    /* Badge Colors */
    --color-badge-high-bg: #d4edda;
    --color-badge-high-text: #155724;
    --color-badge-medium-bg: #fff3cd;
    --color-badge-medium-text: #856404;
    --color-badge-low-bg: #f8d7da;
    --color-badge-low-text: #721c24;

    /* Spacing */
    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 15px;
    --spacing-lg: 20px;
    --spacing-xl: 30px;
    --spacing-2xl: 40px;
    --spacing-3xl: 60px;

    /* Border Radius */
    --radius-xs: 5px;
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-full: 50px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 6px 12px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 10px 40px rgba(0, 0, 0, 0.3);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

@media (prefers-color-scheme: dark) {
    :root {
        /* Dark Mode Colors */
        --color-text-primary: #e0e0e0;
        --color-text-secondary: #b0b0b0;
        --color-text-tertiary: #909090;
        --color-text-muted: #707070;
        --color-text-dark: #f5f5f5;
        --color-text-medium: #d0d0d0;

        --color-bg-white: #1a1a1a;
        --color-bg-light: #2a2a2a;
        --color-bg-lighter: #252525;
        --color-bg-medium: #2f2f2f;
        --color-bg-dark: #333;

        --color-border-light: #404040;
        --color-border-medium: #4a4a4a;
        --color-border-dark: #555;
        --color-border-darker: #3a3a3a;

        --color-badge-high-bg: #1e4620;
        --color-badge-high-text: #7fda84;
        --color-badge-medium-bg: #4a3f1a;
        --color-badge-medium-text: #f0d97d;
        --color-badge-low-bg: #4a1e1e;
        --color-badge-low-text: #f78a8a;
    }
}

/* Respect user's motion preferences */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-white);
}

.top-nav {
    display: flex;
    gap: var(--spacing-xl);
    padding: var(--spacing-md) 24px;
    background-color: var(--color-bg-white);
    border-bottom: 1px solid var(--color-border-light);
}

.top-nav a {
    text-decoration: none;
    color: var(--color-text-primary);
    font-size: 0.9rem;
    transition: color var(--transition-normal);
}

.top-nav a:hover {
    color: #0066cc;
}

.top-nav a:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

.top-nav a.home-icon {
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-bg-dark);
    border-radius: var(--radius-xs);
}

.top-nav a.home-icon:hover {
    background-color: var(--color-bg-medium);
}

header {
    padding: 0 24px 20px 24px;
    background-color: #fff;
}

.header-content {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 40px;
}

.logo-section {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.logo {
    height: 200px;
    width: auto;
    display: block;
    margin: 50px 0 0 0;
}

.company-tag {
    font-size: 0.75rem;
    color: #666;
    margin-top: 29px;
    margin-left: 90px;
}

main {
    padding: 0 40px 40px 40px;
}

.content-section {
    padding: 0;
    margin-top: -2px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.content-section h2 {
    font-size: 2.5rem;
    color: #1a1a1a;
    margin-bottom: 20px;
}

.content-section h3 {
    font-size: 1.8rem;
    color: #333;
    margin-top: 30px;
    margin-bottom: 5px;
}

.content-section p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
    margin-bottom: 15px;
}

.content-section ul {
    list-style-type: disc;
    margin-left: 30px;
    margin-bottom: 20px;
}

.content-section li {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
    margin-bottom: 10px;
}

.hero {
    text-align: left;
    flex: 1;
    margin-top: 40px;
    padding-left: 40px;
    border-left: 2px solid #999;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.3;
    background: linear-gradient(90deg, #ff0000, #ff7f00, #ffff00, #00ff00, #0000ff, #4b0082, #9400d3, #ff0000, #ff7f00, #ffff00);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: rainbow-shift 8s linear infinite;
}

@keyframes rainbow-shift {
    0% {
        background-position: 200% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* Tablet and below */
@media (max-width: 1024px) {
    .header-content {
        gap: var(--spacing-lg);
    }

    .hero {
        padding-left: var(--spacing-lg);
    }

    .hero h1 {
        font-size: 2.5rem;
    }
}

/* Mobile and below */
@media (max-width: 768px) {
    .upload-box {
        padding: var(--spacing-2xl) var(--spacing-lg);
    }

    .result-card {
        flex-direction: column;
    }

    .result-card .image-container {
        width: 100%;
    }

    .logo {
        height: 150px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .header-content {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .hero {
        border-left: none;
        border-top: 2px solid #999;
        padding-left: 0;
        padding-top: var(--spacing-lg);
    }

    header {
        padding: var(--spacing-md) var(--spacing-lg);
    }

    .checkout-button {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        padding: var(--spacing-md) 25px;
        font-size: 1rem;
    }
}

/* Small mobile */
@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.5rem;
    }

    .logo {
        height: 120px;
    }

    .upload-box {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .browse-button {
        padding: 12px var(--spacing-lg);
        font-size: 1rem;
    }

    .top-nav {
        gap: var(--spacing-md);
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .content-section h2 {
        font-size: 2rem;
    }

    .content-section h3 {
        font-size: 1.5rem;
    }

    main {
        padding: 0 var(--spacing-lg) var(--spacing-lg) var(--spacing-lg);
    }
}

/* Upload Section */
.upload-section {
    max-width: 1000px;
    margin: 40px auto;
}

.upload-box {
    border: 3px dashed var(--color-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-3xl) var(--spacing-2xl);
    text-align: center;
    background-color: var(--color-bg-light);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.upload-box:hover {
    background-color: var(--color-bg-medium);
    border-color: var(--color-primary-dark);
}

.upload-box.dragover {
    background-color: #d4e6f1;
    border-color: var(--color-primary-dark);
    transform: scale(1.02);
}

.upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.upload-icon {
    color: #3498db;
    margin-bottom: 10px;
}

.upload-box h2 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin: 0;
}

.upload-box p {
    font-size: 1rem;
    color: #7f8c8d;
    margin: 0;
}

.browse-button {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.browse-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.browse-button:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 3px;
}

.browse-button:active {
    transform: translateY(0);
}

.file-info {
    font-size: 0.9rem;
    color: #95a5a6;
}

/* Results Section */
.results-section {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background-color: var(--color-bg-white);
    border-radius: var(--radius-xl);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.results-section h2 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin-bottom: 20px;
    border-bottom: 2px solid #3498db;
    padding-bottom: 10px;
}

#resultsContainer {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.result-card {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border-medium);
    border-radius: var(--radius-lg);
    background-color: var(--color-bg-lighter);
    align-items: flex-start;
}

.result-card .image-container {
    display: flex;
    flex-direction: column;
    width: 200px;
    flex-shrink: 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    position: relative;
}

.result-card .image-container::before {
    content: 'Locara';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-45deg);
    font-size: 3rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.5);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    pointer-events: none;
    z-index: 10;
    white-space: nowrap;
}

.result-card img {
    width: 100%;
    height: auto;
    display: block;
}

.result-card .image-label {
    background-color: #000000;
    color: #ffffff;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    padding: 8px 10px;
    text-align: center;
}

.result-card .image-label .poi-text {
    font-weight: 700;
    font-size: 0.85rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
    line-height: 1.2;
}

.result-card .image-label .location-text {
    font-weight: 400;
    font-size: 0.65rem;
    margin-top: 2px;
    opacity: 0.9;
    word-wrap: break-word;
    overflow-wrap: break-word;
    line-height: 1.2;
}

.result-info {
    flex: 1;
}

.action-buttons {
    display: flex;
    gap: 15px;
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px solid #e0e0e0;
}

/* Editable Field with Pencil Icon */
.editable-field {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 5px 0;
}

.editable-field h3,
.editable-field p {
    margin: 0;
}

.edit-icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-sm);
    opacity: 0.6;
    transition: all var(--transition-fast);
}

.edit-icon-btn:hover {
    opacity: 1;
    background-color: var(--color-bg-dark);
    transform: scale(1.1);
}

.edit-icon-btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    opacity: 1;
}

/* Add to Cart Button */
.add-to-cart-btn {
    background: linear-gradient(135deg, var(--color-success) 0%, var(--color-success-dark) 100%);
    color: white;
    border: none;
    padding: 12px 25px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 6px rgba(40, 167, 69, 0.2);
}

.add-to-cart-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(40, 167, 69, 0.3);
}

.add-to-cart-btn:focus-visible {
    outline: 3px solid var(--color-success);
    outline-offset: 3px;
}

.add-to-cart-btn:active {
    transform: translateY(0);
}

/* Directory Selector */
.directory-selector {
    margin-top: 15px;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 6px;
    border: 1px solid #dee2e6;
}

.directory-selector p {
    margin: 0 0 10px 0;
    color: #333;
}

.directory-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--color-border-dark);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
    font-family: monospace;
    background-color: var(--color-bg-white);
    color: var(--color-text-primary);
}

.directory-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.directory-button,
.save-button {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    font-size: 0.9rem;
    cursor: pointer;
    font-weight: 600;
    margin-right: 8px;
}

.directory-button {
    background-color: #6c757d;
    color: white;
}

.directory-button:hover {
    background-color: #5a6268;
}

.save-button {
    background-color: #28a745;
    color: white;
}

.save-button:hover {
    background-color: #218838;
}

.filename-options {
    margin-top: 15px;
    padding: 12px;
    background-color: #f8f9fa;
    border-radius: 6px;
    border: 1px solid #dee2e6;
}

.filename-options p {
    margin: 0 0 10px 0;
    font-weight: 600;
    color: #333;
}

.filename-radio-option {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    color: #555;
}

.filename-radio-option input[type="radio"] {
    cursor: pointer;
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.filename-radio-option:hover {
    color: #333;
}

.custom-filename-input {
    margin-left: 5px;
    padding: 6px 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 0.85rem;
    flex: 1;
}

.custom-filename-input:disabled {
    background-color: #e9ecef;
    cursor: not-allowed;
}

.custom-filename-input:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.1);
}

/* Edit Modal */
.edit-modal {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.edit-modal.show {
    opacity: 1;
}

.edit-modal-content {
    background-color: var(--color-bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-xl);
}

.edit-modal-content h3 {
    font-size: 1.5rem;
    color: #2c3e50;
    margin: 0 0 20px 0;
}

.edit-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.label-with-counter {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.form-group label {
    font-weight: 600;
    color: #555;
    font-size: 0.95rem;
}

.char-counter {
    font-size: 0.8rem;
    color: #999;
    font-weight: 400;
}

.char-counter.at-limit {
    color: #e74c3c;
    font-weight: 600;
}

.edit-input {
    padding: 10px 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 1rem;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.edit-input:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-hint {
    font-size: 0.75rem;
    color: #999;
    font-style: italic;
    margin-top: 4px;
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 10px;
}

.modal-cancel-button,
.modal-save-button {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-cancel-button {
    background-color: #6c757d;
    color: white;
}

.modal-cancel-button:hover {
    background-color: #5a6268;
}

.modal-cancel-button:focus-visible {
    outline: 3px solid #6c757d;
    outline-offset: 2px;
}

.modal-save-button {
    background-color: var(--color-primary);
    color: white;
}

.modal-save-button:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.modal-save-button:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

.result-info h3 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 10px;
    font-weight: 400;
}

.result-info p {
    margin: 5px 0;
    color: #555;
}

.result-info .user-edited {
    font-weight: 700;
}

.result-info .coordinates {
    font-family: monospace;
    color: #3498db;
}

.low-res-warning {
    color: #e74c3c;
    font-weight: 700;
    font-size: 0.85rem;
}

.no-gps-warning {
    color: #e74c3c;
    font-weight: 700;
}

.result-info .confidence {
    display: inline-block;
    padding: var(--spacing-sm) 12px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
}

.confidence.high {
    background-color: var(--color-badge-high-bg);
    color: var(--color-badge-high-text);
}

.confidence.medium {
    background-color: var(--color-badge-medium-bg);
    color: var(--color-badge-medium-text);
}

.confidence.low {
    background-color: var(--color-badge-low-bg);
    color: var(--color-badge-low-text);
}

/* Processing Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background-color: var(--color-bg-white);
    padding: var(--spacing-2xl) var(--spacing-3xl);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-xl);
}

.modal-content h3 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin: 20px 0 10px 0;
}

.modal-content p {
    font-size: 1rem;
    color: #7f8c8d;
    white-space: pre-line;
    line-height: 1.6;
}

/* Spinner */
.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Checkout Button */
.checkout-button {
    display: none;
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-success) 0%, var(--color-success-dark) 100%);
    color: white;
    border: none;
    padding: 18px 35px;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
    transition: all var(--transition-normal);
    z-index: 1000;
}

.checkout-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(40, 167, 69, 0.6);
}

.checkout-button:focus-visible {
    outline: 3px solid var(--color-success);
    outline-offset: 3px;
}

.checkout-button:active {
    transform: translateY(-1px);
}

/* Cart Items */
.cart-items {
    max-height: 400px;
    overflow-y: auto;
    margin: 20px 0;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    padding: 15px;
    background-color: #fafafa;
}

.cart-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    border-bottom: 1px solid #e0e0e0;
    font-size: 0.95rem;
}

.cart-item:last-child {
    border-bottom: none;
}

.cart-item-number {
    color: #666;
    font-weight: 600;
    margin-right: 10px;
}

.cart-item-name {
    flex: 1;
    color: #333;
}

.cart-item-cost {
    color: #28a745;
    font-weight: 600;
}

.cart-total {
    display: flex;
    justify-content: space-between;
    padding: 20px;
    background-color: #f0f0f0;
    border-radius: 6px;
    font-size: 1.3rem;
    margin-top: 20px;
}

.total-amount {
    color: #28a745;
    font-weight: 700;
    font-size: 1.5rem;
}