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

:root {
    /* Modern Professional Palette */
    --primary-color: #0f172a;           /* Deep Navy */
    --primary-light: #1e293b;           /* Slightly lighter navy */
    --secondary-color: #0ea5e9;         /* Vibrant Cyan */
    --secondary-light: #06b6d4;         /* Slightly darker cyan */
    --accent-color: #10b981;            /* Professional Green */
    --accent-hover: #059669;            /* Darker green */
    --warning-color: #f59e0b;           /* Amber */
    --danger-color: #ef4444;            /* Red */
    --success-color: #10b981;           /* Green */
    --background-color: #f8fafc;        /* Very light gray */
    --background-secondary: #f1f5f9;    /* Light gray */
    --card-background: #ffffff;         /* White */
    --text-primary: #0f172a;            /* Dark navy text */
    --text-secondary: #475569;          /* Gray text */
    --text-muted: #64748b;              /* Muted gray */
    --border-color: #cbd5e1;            /* Gray border */
    --border-light: #e2e8f0;            /* Light border */
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow: 0 4px 12px 0 rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 16px 0 rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 12px 24px 0 rgba(0, 0, 0, 0.12);
    --shadow-hover: 0 16px 32px 0 rgba(14, 165, 233, 0.2);
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(to bottom right, #f8fafc 0%, #e2e8f0 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    font-size: 16px;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 48px;
    padding: 48px 32px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 50%, var(--secondary-color) 100%);
    color: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(255,255,255,0.05) 0%, transparent 50%);
    pointer-events: none;
}

header h1 {
    font-size: 2.75rem;
    margin-bottom: 12px;
    font-weight: 700;
    letter-spacing: -0.025em;
    position: relative;
    text-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.subtitle {
    font-size: 1.125rem;
    opacity: 0.95;
    font-weight: 400;
    position: relative;
}

/* Form Sections */
.form-section {
    background: var(--card-background);
    padding: 32px;
    margin-bottom: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.form-section:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.form-section h2 {
    color: var(--primary-color);
    margin-bottom: 24px;
    font-size: 1.5rem;
    font-weight: 700;
    border-bottom: 3px solid var(--secondary-color);
    padding-bottom: 12px;
    letter-spacing: -0.015em;
    display: flex;
    align-items: center;
    gap: 12px;
}

.form-section h2::before {
    content: '';
    width: 4px;
    height: 24px;
    background: linear-gradient(to bottom, var(--secondary-color), var(--accent-color));
    border-radius: 2px;
}

/* Form Elements */
.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
}

input[type="text"],
input[type="date"],
input[type="number"],
select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: all 0.2s ease;
    background: white;
    font-family: inherit;
}

input[type="text"]:hover,
input[type="date"]:hover,
input[type="number"]:hover,
select:hover {
    border-color: var(--secondary-color);
}

input[type="text"]:focus,
input[type="date"]:focus,
input[type="number"]:focus,
select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-right: 8px;
    cursor: pointer;
    accent-color: var(--secondary-color);
}

small {
    display: block;
    margin-top: 6px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

small a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

small a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

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

/* Buttons */
.form-actions {
    display: flex;
    gap: 16px;
    margin-top: 32px;
}

button {
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

button:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-light) 100%);
    color: white;
    flex: 1;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    background: linear-gradient(135deg, var(--secondary-light) 0%, var(--secondary-color) 100%);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: white;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--background-secondary);
    border-color: var(--secondary-color);
    color: var(--secondary-color);
}

/* Results Section */
.results {
    background: var(--card-background);
    padding: 32px;
    margin-top: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    animation: slideIn 0.4s ease-out;
    border: 1px solid var(--border-light);
}

.results.hidden {
    display: none;
}

.results h2 {
    color: var(--primary-color);
    margin-bottom: 25px;
    font-size: 1.8rem;
}

/* Summary Card */
.results-summary {
    background: linear-gradient(135deg, var(--success-color), #2ecc71);
    padding: 30px;
    border-radius: 10px;
    margin-bottom: 30px;
    text-align: center;
    color: white;
    box-shadow: var(--shadow);
}

.summary-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    opacity: 0.95;
}

.total-amount {
    font-size: 3rem;
    font-weight: bold;
    margin: 0;
}

/* Breakdown Items */
.results-breakdown {
    margin-bottom: 30px;
}

.results-breakdown h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.breakdown-item {
    background: var(--background-color);
    padding: 20px;
    margin-bottom: 15px;
    border-radius: 8px;
    border-left: 4px solid var(--secondary-color);
}

.item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.item-label {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.item-amount {
    font-size: 1.3rem;
    font-weight: bold;
    color: var(--primary-color);
}

.item-note {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
    margin-top: 5px;
}

/* Policy References */
.policy-references {
    background: var(--background-color);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.policy-references h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.policy-references ul {
    list-style: none;
}

.policy-references li {
    margin-bottom: 10px;
}

.policy-references a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.policy-references a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Disclaimer */
.disclaimer {
    background: #fff3cd;
    border: 2px solid #ffc107;
    border-radius: 8px;
    padding: 20px;
    color: #856404;
}

.disclaimer strong {
    display: block;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

/* Footer */
footer {
    text-align: center;
    margin-top: 40px;
    padding: 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Rate Warning Banner */
.rate-warning-banner {
    background: linear-gradient(135deg, #fff3cd, #ffeaa7);
    border: 2px solid #ffc107;
    border-radius: 10px;
    padding: 20px;
    margin: 20px 0;
    box-shadow: var(--shadow);
    animation: slideDown 0.4s ease-out;
}

.warning-content h3 {
    color: #856404;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.rate-alert {
    padding: 12px 15px;
    margin: 10px 0;
    border-radius: 6px;
    border-left: 4px solid;
}

.alert-danger {
    background: #f8d7da;
    border-left-color: #dc3545;
    color: #721c24;
}

.alert-warning {
    background: #fff3cd;
    border-left-color: #ffc107;
    color: #856404;
}

.alert-info {
    background: #d1ecf1;
    border-left-color: #17a2b8;
    color: #0c5460;
}

.warning-footer {
    margin-top: 15px;
    color: #856404;
    font-size: 0.9rem;
}

.warning-footer a {
    color: var(--secondary-color);
    font-weight: 600;
    text-decoration: none;
}

.warning-footer a:hover {
    text-decoration: underline;
}

.btn-dismiss {
    background: #856404;
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
    margin-top: 10px;
    transition: background 0.3s;
}

.btn-dismiss:hover {
    background: #6c5003;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Animations */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 1.8rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .form-section {
        padding: 20px;
    }

    .form-actions {
        flex-direction: column;
    }

    .total-amount {
        font-size: 2.2rem;
    }

    .results {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }

    header {
        padding: 20px 15px;
    }

    header h1 {
        font-size: 1.5rem;
    }

    .subtitle {
        font-size: 0.95rem;
    }
}

/* ============ NEW ENHANCED FEATURES STYLES ============ */

/* Results Actions */
.results-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-export, .btn-print {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.btn-export {
    background: #28a745;
    color: white;
}

.btn-export:hover {
    background: #218838;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.btn-print {
    background: #007bff;
    color: white;
}

.btn-print:hover {
    background: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

/* Print Styles */
@media print {
    /* Hide non-essential elements */
    header,
    footer,
    .form-section,
    button,
    .dark-mode-toggle,
    .shortcuts-help-button,
    .trip-history-button,
    #autosave-indicator,
    .results-actions {
        display: none !important;
    }
    
    /* Optimize results for printing */
    .results {
        box-shadow: none;
        border: 1px solid #000;
        page-break-inside: avoid;
    }
    
    /* Ensure good contrast */
    body {
        background: white;
        color: black;
    }
    
    .results {
        background: white;
    }
    
    /* Add print header */
    .results::before {
        content: "Government Travel Cost Estimate";
        display: block;
        font-size: 24px;
        font-weight: bold;
        margin-bottom: 20px;
        text-align: center;
    }
    
    /* Better page breaks */
    .breakdown-item {
        page-break-inside: avoid;
    }
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Enhanced Button States */
button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

button:not(:disabled):active {
    transform: scale(0.98);
}

/* Accessibility Improvements */
:focus-visible {
    outline: 3px solid var(--secondary-color);
    outline-offset: 2px;
}

/* Skip to content link (for screen readers) */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #000080;
        --border-color: #000;
    }
    
    button {
        border: 2px solid currentColor;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Dark mode improvements (enhanced by enhanced-features.js) */
body.dark-mode {
    --background-color: #1a1a1a;
    --card-background: #2a2a2a;
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --border-color: #444;
}

body.dark-mode input:focus,
body.dark-mode select:focus,
body.dark-mode textarea:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 197, 0.3);
}

/* Responsive improvements for smaller screens */
@media (max-width: 360px) {
    .results-actions {
        flex-direction: column;
    }
    
    .btn-export, .btn-print {
        width: 100%;
    }
}

/* Custom City Input */
.city-input-wrapper {
    position: relative;
}

.city-input-wrapper input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: all 0.2s ease;
    background: white;
    font-family: inherit;
}

.city-input-wrapper input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.1);
}

.city-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 2px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 var(--radius) var(--radius);
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.city-suggestion-item {
    padding: 10px 16px;
    cursor: pointer;
    transition: background-color 0.15s;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.95rem;
}

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

.city-suggestion-item:hover {
    background-color: var(--background-secondary);
    color: var(--secondary-color);
}

.city-suggestion-item.selected {
    background-color: rgba(14, 165, 233, 0.1);
    color: var(--secondary-color);
    font-weight: 500;
}