/* HRSCalculator.com - Custom Styles */
/* Design System Colors:
   Primary: #2563EB (Blue)
   Secondary: #10B981 (Green)
   Background: #F8FAFC (Light Gray)
   Text: #1E293B (Dark)
   Accent: #F59E0B (Orange)
*/

:root {
    --primary: #2563EB;
    --primary-dark: #1D4ED8;
    --primary-light: #3B82F6;
    --secondary: #10B981;
    --secondary-dark: #059669;
    --background: #F8FAFC;
    --text: #1E293B;
    --text-light: #64748B;
    --accent: #F59E0B;
    --white: #FFFFFF;
    --border: #E2E8F0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius: 12px;
    --radius-sm: 8px;
}

/* Base Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
}

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

a:hover {
    color: var(--primary-dark);
}

/* Header Styles */
.site-header {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text) !important;
}

.navbar-brand i {
    font-size: 1.75rem;
}

.brand-text {
    letter-spacing: -0.02em;
}

.nav-link {
    font-weight: 500;
    color: var(--text) !important;
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary) !important;
    background: rgba(37, 99, 235, 0.05);
}

.dropdown-menu {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
}

.dropdown-item {
    border-radius: var(--radius-sm);
    padding: 0.5rem 1rem;
    font-weight: 500;
}

.dropdown-item:hover {
    background: rgba(37, 99, 235, 0.05);
    color: var(--primary);
}

.dropdown-header {
    font-weight: 600;
    color: var(--text);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 4rem 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-section h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero-section .lead {
    font-size: 1.25rem;
    opacity: 0.9;
}

@media (min-width: 768px) {
    .hero-section {
        padding: 5rem 0;
    }
    
    .hero-section h1 {
        font-size: 3rem;
    }
}

/* Calculator Card */
.calculator-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 2rem;
    position: relative;
    z-index: 10;
}

.calculator-card.hero-card {
    margin-top: -3rem;
}

/* Calculator Display */
.calculator-display {
    background: linear-gradient(135deg, #1E293B 0%, #334155 100%);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    margin-bottom: 1.5rem;
}

.display-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.display-time {
    font-family: 'Roboto Mono', monospace;
    font-size: 3rem;
    font-weight: 600;
    color: var(--white);
    line-height: 1;
}

.display-date {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 0.5rem;
}

.display-result {
    font-family: 'Roboto Mono', monospace;
    font-size: 2.5rem;
    font-weight: 600;
    color: #10B981;
    line-height: 1;
}

/* Result Display (Green theme) */
.result-display {
    background: linear-gradient(135deg, #10B981 0%, #059669 100%) !important;
    border: 2px solid #059669;
    margin-top: 1rem;
}

.result-display .display-label {
    color: rgba(255, 255, 255, 0.8);
}

.result-display .display-result {
    color: #FFFFFF;
    font-size: 3rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.result-display .display-date {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

[data-theme="dark"] .result-display {
    background: linear-gradient(135deg, #059669 0%, #047857 100%) !important;
    border-color: #10B981;
}

[data-theme="dark"] .result-display .display-result {
    color: #FFFFFF;
    text-shadow: 0 0 20px rgba(16, 185, 129, 0.5);
}

@media (min-width: 768px) {
    .display-time {
        font-size: 4rem;
    }
    
    .display-result {
        font-size: 3rem;
    }
    
    .result-display .display-result {
        font-size: 4rem;
    }
}

/* Form Controls */
.form-label {
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.form-control,
.form-select {
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.2s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control-lg {
    font-size: 1.25rem;
    padding: 1rem 1.25rem;
}

.input-group-text {
    background: var(--background);
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-weight: 500;
}

/* Time Input Styles */
.time-input {
    font-family: 'Roboto Mono', monospace;
    font-size: 1.5rem;
    text-align: center;
    letter-spacing: 0.05em;
}

/* Buttons */
.btn {
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-1px);
}

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

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

.btn-outline-primary {
    border-color: var(--primary);
    color: var(--primary);
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Calculator Buttons Grid */
.calc-buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
}

.calc-btn {
    aspect-ratio: 1;
    font-size: 1.25rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 2px solid var(--border);
    background: var(--white);
    transition: all 0.2s ease;
}

.calc-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.calc-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

/* Operation Tabs */
.operation-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.operation-tab {
    flex: 1;
    min-width: 120px;
    padding: 0.75rem 1rem;
    background: var(--background);
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    text-align: center;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.operation-tab:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.operation-tab.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

.operation-tab i {
    display: block;
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

/* Quick Reference Table */
.quick-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.quick-table th,
.quick-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.quick-table th {
    background: var(--background);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-light);
}

.quick-table tr:hover td {
    background: rgba(37, 99, 235, 0.02);
}

.quick-table td:first-child {
    font-weight: 600;
    color: var(--primary);
}

.quick-table .time-value {
    font-family: 'Roboto Mono', monospace;
    font-weight: 500;
}

/* Sections */
.section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

/* Feature Cards */
.feature-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 1.5rem;
    height: 100%;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.feature-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.feature-text {
    color: var(--text-light);
    font-size: 0.938rem;
    margin: 0;
}

/* How It Works */
.step-card {
    text-align: center;
    padding: 2rem 1rem;
}

.step-number {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin: 0 auto 1rem;
}

.step-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.step-text {
    color: var(--text-light);
    font-size: 0.938rem;
}

/* FAQ Section */
.faq-section {
    background: var(--white);
}

.accordion-item {
    border: 1px solid var(--border);
    margin-bottom: 0.5rem;
    border-radius: var(--radius) !important;
    overflow: hidden;
}

.accordion-button {
    font-weight: 600;
    padding: 1.25rem 1.5rem;
    background: var(--white);
}

.accordion-button:not(.collapsed) {
    background: rgba(37, 99, 235, 0.02);
    color: var(--primary);
}

.accordion-button:focus {
    box-shadow: none;
    border-color: var(--border);
}

.accordion-body {
    padding: 1rem 1.5rem 1.5rem;
    color: var(--text-light);
    line-height: 1.7;
}

/* Related Links Section */
.related-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.related-link {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-weight: 500;
    font-size: 0.938rem;
    transition: all 0.2s ease;
}

.related-link:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.related-link i {
    margin-right: 0.5rem;
}

/* Result Card for Programmatic Pages */
.result-card {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius);
    padding: 3rem 2rem;
    text-align: center;
    color: var(--white);
}

.result-label {
    font-size: 1rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.result-time {
    font-family: 'Roboto Mono', monospace;
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.result-date {
    font-size: 1.25rem;
    opacity: 0.9;
}

@media (min-width: 768px) {
    .result-time {
        font-size: 5rem;
    }
}

/* Conversion Info */
.conversion-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 1.5rem;
    border: 1px solid var(--border);
}

.conversion-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
}

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

.conversion-label {
    color: var(--text-light);
}

.conversion-value {
    font-family: 'Roboto Mono', monospace;
    font-weight: 600;
    color: var(--text);
}

/* Time Card Table */
.timecard-table {
    width: 100%;
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.timecard-table th,
.timecard-table td {
    padding: 1rem;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.timecard-table th {
    background: var(--background);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.timecard-table input {
    width: 100%;
    max-width: 120px;
    text-align: center;
}

.timecard-total {
    background: rgba(37, 99, 235, 0.05);
    font-weight: 600;
}

.overtime {
    color: var(--accent);
}

/* Footer Styles */
.site-footer {
    background: #1E293B;
    color: rgba(255, 255, 255, 0.8);
    padding: 4rem 0 2rem;
    margin-top: auto;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-brand .brand-text {
    color: var(--white);
}

.footer-description {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.938rem;
    line-height: 1.7;
}

.footer-heading {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--white);
    margin-bottom: 1.25rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.938rem;
    transition: color 0.2s ease;
}

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

.footer-divider {
    border-color: rgba(255, 255, 255, 0.1);
    margin: 2rem 0;
}

.footer-bottom {
    font-size: 0.875rem;
}

.copyright {
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
}

.footer-note {
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
}

.footer-extra-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem 1.5rem;
    padding: 1rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-extra-label {
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

.footer-extra-links a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
    transition: color 0.2s ease;
}

.footer-extra-links a:hover {
    color: var(--white);
}

/* Breadcrumb Navigation */
.breadcrumb-nav {
    background: var(--white);
    border-bottom: 1px solid var(--border);
}

[data-theme="dark"] .breadcrumb-nav {
    background: #1E293B;
    border-color: #334155;
}

.breadcrumb {
    font-size: 0.875rem;
    background: transparent;
}

.breadcrumb-item a {
    color: var(--text-light);
    text-decoration: none;
}

.breadcrumb-item a:hover {
    color: var(--primary);
}

.breadcrumb-item.active {
    color: var(--text);
}

[data-theme="dark"] .breadcrumb-item.active {
    color: #F1F5F9;
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--text-light);
}

/* Print Button */
.print-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

@media print {
    .print-btn,
    .no-print {
        display: none !important;
    }
    
    .print-only {
        display: block !important;
    }
}

/* Utility Classes */
.bg-light-gray {
    background: var(--background);
}

.text-primary {
    color: var(--primary) !important;
}

.text-secondary {
    color: var(--secondary) !important;
}

.text-muted {
    color: var(--text-light) !important;
}

/* Accent Colors for Dark Mode Compatibility */
.accent-orange {
    color: #D97706 !important;
}

.accent-red {
    color: #DC2626 !important;
}

.accent-green {
    color: #059669 !important;
}

.accent-yellow {
    color: #B45309 !important;
}

[data-theme="dark"] .accent-orange {
    color: #FBBF24 !important;
}

[data-theme="dark"] .accent-red {
    color: #F87171 !important;
}

[data-theme="dark"] .accent-green {
    color: #34D399 !important;
}

[data-theme="dark"] .accent-yellow {
    color: #FCD34D !important;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease forwards;
}

/* Loading State */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Responsive */
@media (max-width: 767.98px) {
    .hero-section {
        padding: 2rem 0;
    }
    
    .hero-section h1 {
        font-size: 1.75rem;
    }
    
    .calculator-card {
        padding: 1.5rem;
    }
    
    .display-time {
        font-size: 2.5rem;
    }
    
    .section {
        padding: 2.5rem 0;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .operation-tabs {
        flex-direction: column;
    }
    
    .operation-tab {
        min-width: 100%;
    }
}

/* Print Styles */
@media print {
    /* Hide non-essential elements */
    .site-header,
    .site-footer,
    .breadcrumb-nav,
    .hero-section,
    .no-print,
    .print-btn,
    .related-links,
    .section:not(.print-section),
    .faq-section,
    .accordion,
    nav,
    footer {
        display: none !important;
    }
    
    /* Reset body and backgrounds */
    body,
    html {
        background: white !important;
        color: black !important;
        font-size: 12pt !important;
        margin: 0 !important;
        padding: 0 !important;
    }
    
    main {
        padding: 0 !important;
        margin: 0 !important;
    }
    
    /* Calculator card print styles */
    .calculator-card {
        box-shadow: none !important;
        border: none !important;
        padding: 0 !important;
        margin: 0 !important;
        background: white !important;
    }
    
    .calculator-card.hero-card {
        margin-top: 0 !important;
    }
    
    /* Container full width */
    .container {
        max-width: 100% !important;
        width: 100% !important;
        padding: 0 !important;
        margin: 0 !important;
    }
    
    .row {
        margin: 0 !important;
    }
    
    .col-lg-8,
    .col-lg-10,
    .col-md-6 {
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
    }
    
    /* Table print styles */
    .timecard-table {
        width: 100% !important;
        border-collapse: collapse !important;
        font-size: 11pt !important;
    }
    
    .timecard-table th,
    .timecard-table td {
        border: 1px solid #333 !important;
        padding: 8px !important;
        background: white !important;
        color: black !important;
    }
    
    .timecard-table th {
        background: #f0f0f0 !important;
        font-weight: bold !important;
    }
    
    .timecard-table input {
        border: none !important;
        background: transparent !important;
        text-align: center !important;
        font-size: 11pt !important;
        color: black !important;
    }
    
    .timecard-total {
        background: #e8e8e8 !important;
        font-weight: bold !important;
    }
    
    /* Results section */
    #timeCardResult {
        page-break-before: avoid;
        margin-top: 20px !important;
    }
    
    .conversion-card {
        background: #f5f5f5 !important;
        border: 1px solid #ccc !important;
        padding: 10px !important;
        margin: 5px 0 !important;
        color: black !important;
    }
    
    .conversion-card * {
        color: black !important;
    }
    
    /* Text colors for print */
    h1, h2, h3, h4, h5, h6,
    p, span, div, td, th, label {
        color: black !important;
    }
    
    .text-primary,
    .text-muted,
    .overtime {
        color: black !important;
    }
    
    /* Hide buttons */
    .btn,
    button {
        display: none !important;
    }
    
    /* Print header */
    .print-header {
        display: block !important;
        text-align: center;
        margin-bottom: 20px;
        border-bottom: 2px solid #333;
        padding-bottom: 10px;
    }
    
    /* Page settings */
    @page {
        size: A4 portrait;
        margin: 1cm;
    }
}

/* Dark Mode Toggle */
.dark-mode-toggle {
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--text);
    font-size: 1.25rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dark-mode-toggle:hover {
    background: var(--background);
}

.dark-mode-toggle .bi-moon-fill {
    display: none;
}

.dark-mode-toggle .bi-sun-fill {
    display: inline-block;
}

/* ===============================================
   DARK MODE STYLES - Complete Theme
   =============================================== */

[data-theme="dark"] {
    --primary: #60A5FA;
    --primary-dark: #3B82F6;
    --primary-light: #93C5FD;
    --secondary: #34D399;
    --secondary-dark: #10B981;
    --background: #0F172A;
    --background-card: #1E293B;
    --background-hover: #334155;
    --text: #F1F5F9;
    --text-light: #94A3B8;
    --text-muted: #64748B;
    --white: #FFFFFF;
    --border: #334155;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
}

/* Base body and text */
[data-theme="dark"] body {
    background-color: #0F172A !important;
    color: #F1F5F9 !important;
}

[data-theme="dark"] main {
    background-color: #0F172A;
}

[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4,
[data-theme="dark"] h5,
[data-theme="dark"] h6 {
    color: #F1F5F9 !important;
}

[data-theme="dark"] p,
[data-theme="dark"] li,
[data-theme="dark"] span {
    color: #CBD5E1;
}

[data-theme="dark"] a {
    color: #60A5FA;
}

[data-theme="dark"] a:hover {
    color: #93C5FD;
}

/* Header */
[data-theme="dark"] .site-header {
    background: #1E293B !important;
    border-bottom-color: #334155 !important;
}

[data-theme="dark"] .navbar {
    background: #1E293B !important;
}

[data-theme="dark"] .navbar-brand,
[data-theme="dark"] .navbar-brand span {
    color: #F1F5F9 !important;
}

[data-theme="dark"] .nav-link {
    color: #CBD5E1 !important;
}

[data-theme="dark"] .nav-link:hover,
[data-theme="dark"] .nav-link.active {
    color: #60A5FA !important;
    background: rgba(96, 165, 250, 0.1) !important;
}

[data-theme="dark"] .dropdown-menu {
    background: #1E293B !important;
    border-color: #334155 !important;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5) !important;
}

[data-theme="dark"] .dropdown-item {
    color: #CBD5E1 !important;
}

[data-theme="dark"] .dropdown-item:hover,
[data-theme="dark"] .dropdown-item:focus {
    background: #334155 !important;
    color: #60A5FA !important;
}

[data-theme="dark"] .dropdown-header {
    color: #94A3B8 !important;
}

[data-theme="dark"] .dropdown-divider {
    border-color: #334155 !important;
}

[data-theme="dark"] .navbar-toggler {
    border-color: #334155 !important;
}

[data-theme="dark"] .navbar-toggler-icon {
    filter: invert(1);
}

/* Hero Section - keep gradient but ensure text visibility */
[data-theme="dark"] .hero-section {
    background: linear-gradient(135deg, #1E40AF 0%, #1E3A8A 100%) !important;
}

[data-theme="dark"] .hero-section h1,
[data-theme="dark"] .hero-section p,
[data-theme="dark"] .hero-section .lead {
    color: #FFFFFF !important;
}

/* Hero Timer (Orange/Amber theme) */
.hero-timer {
    background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%) !important;
}

[data-theme="dark"] .hero-timer {
    background: linear-gradient(135deg, #92400E 0%, #78350F 100%) !important;
}

[data-theme="dark"] .hero-timer h1,
[data-theme="dark"] .hero-timer p,
[data-theme="dark"] .hero-timer .lead {
    color: #FEF3C7 !important;
}

/* Calculator Card */
[data-theme="dark"] .calculator-card {
    background: #1E293B !important;
    border: 1px solid #334155 !important;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3) !important;
}

[data-theme="dark"] .calculator-display {
    background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%) !important;
    border: 1px solid #334155;
}

[data-theme="dark"] .display-label {
    color: #94A3B8 !important;
}

[data-theme="dark"] .display-time {
    color: #FFFFFF !important;
}

[data-theme="dark"] .display-date {
    color: #CBD5E1 !important;
}

[data-theme="dark"] .display-result {
    color: #34D399 !important;
}

/* Form Controls */
[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select,
[data-theme="dark"] input[type="text"],
[data-theme="dark"] input[type="number"],
[data-theme="dark"] input[type="time"],
[data-theme="dark"] input[type="date"],
[data-theme="dark"] textarea {
    background-color: #0F172A !important;
    border-color: #334155 !important;
    color: #F1F5F9 !important;
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus,
[data-theme="dark"] input:focus {
    background-color: #0F172A !important;
    border-color: #60A5FA !important;
    color: #F1F5F9 !important;
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.2) !important;
}

[data-theme="dark"] .form-control::placeholder {
    color: #64748B !important;
}

[data-theme="dark"] .form-label {
    color: #F1F5F9 !important;
}

[data-theme="dark"] .input-group-text {
    background: #334155 !important;
    border-color: #334155 !important;
    color: #CBD5E1 !important;
}

/* Buttons */
[data-theme="dark"] .btn-primary {
    background: #3B82F6 !important;
    border-color: #3B82F6 !important;
    color: #FFFFFF !important;
}

[data-theme="dark"] .btn-primary:hover {
    background: #2563EB !important;
    border-color: #2563EB !important;
}

[data-theme="dark"] .btn-secondary {
    background: #10B981 !important;
    border-color: #10B981 !important;
    color: #FFFFFF !important;
}

[data-theme="dark"] .btn-outline-primary {
    color: #60A5FA !important;
    border-color: #60A5FA !important;
    background: transparent !important;
}

[data-theme="dark"] .btn-outline-primary:hover {
    background: #60A5FA !important;
    color: #0F172A !important;
}

[data-theme="dark"] .btn-outline-secondary {
    color: #94A3B8 !important;
    border-color: #475569 !important;
    background: transparent !important;
}

[data-theme="dark"] .btn-outline-secondary:hover {
    background: #475569 !important;
    color: #F1F5F9 !important;
    border-color: #475569 !important;
}

[data-theme="dark"] .btn-outline-warning {
    color: #FBBF24 !important;
    border-color: #FBBF24 !important;
}

[data-theme="dark"] .btn-outline-warning:hover {
    background: #FBBF24 !important;
    color: #0F172A !important;
}

[data-theme="dark"] .btn-success {
    background: #10B981 !important;
    border-color: #10B981 !important;
}

[data-theme="dark"] .btn-warning {
    background: #F59E0B !important;
    border-color: #F59E0B !important;
    color: #0F172A !important;
}

[data-theme="dark"] .btn-danger {
    background: #EF4444 !important;
    border-color: #EF4444 !important;
}

/* Calc Buttons */
[data-theme="dark"] .calc-btn {
    background: #1E293B !important;
    border-color: #334155 !important;
    color: #F1F5F9 !important;
}

[data-theme="dark"] .calc-btn:hover {
    border-color: #60A5FA !important;
    color: #60A5FA !important;
}

[data-theme="dark"] .calc-btn.active {
    background: #3B82F6 !important;
    border-color: #3B82F6 !important;
    color: #FFFFFF !important;
}

/* Operation Tabs */
[data-theme="dark"] .operation-tab {
    background: #0F172A !important;
    border-color: #334155 !important;
    color: #CBD5E1 !important;
}

[data-theme="dark"] .operation-tab:hover {
    border-color: #60A5FA !important;
    color: #60A5FA !important;
}

[data-theme="dark"] .operation-tab.active {
    background: #3B82F6 !important;
    border-color: #3B82F6 !important;
    color: #FFFFFF !important;
}

/* Sections */
[data-theme="dark"] .section {
    background: #0F172A;
}

[data-theme="dark"] .section-title {
    color: #F1F5F9 !important;
}

[data-theme="dark"] .section-subtitle {
    color: #94A3B8 !important;
}

[data-theme="dark"] .bg-light-gray {
    background: #1E293B !important;
}

/* Feature Cards */
[data-theme="dark"] .feature-card {
    background: #1E293B !important;
    border-color: #334155 !important;
}

[data-theme="dark"] .feature-card:hover {
    border-color: #475569 !important;
}

[data-theme="dark"] .feature-icon {
    background: rgba(96, 165, 250, 0.15) !important;
    color: #60A5FA !important;
}

[data-theme="dark"] .feature-title {
    color: #F1F5F9 !important;
}

[data-theme="dark"] .feature-text {
    color: #94A3B8 !important;
}

/* Step Cards */
[data-theme="dark"] .step-card {
    background: transparent;
}

[data-theme="dark"] .step-title {
    color: #F1F5F9 !important;
}

[data-theme="dark"] .step-text {
    color: #94A3B8 !important;
}

/* Tables */
[data-theme="dark"] .quick-table {
    background: #1E293B;
}

[data-theme="dark"] .quick-table th {
    background: #334155 !important;
    color: #94A3B8 !important;
    border-color: #475569 !important;
}

[data-theme="dark"] .quick-table td {
    border-color: #334155 !important;
    color: #CBD5E1 !important;
}

[data-theme="dark"] .quick-table td:first-child {
    color: #60A5FA !important;
}

[data-theme="dark"] .quick-table tr:hover td {
    background: rgba(96, 165, 250, 0.05) !important;
}

[data-theme="dark"] .quick-table a {
    color: #60A5FA !important;
}

[data-theme="dark"] .table {
    color: #CBD5E1;
}

[data-theme="dark"] .table-secondary,
[data-theme="dark"] .table-secondary td {
    background: #334155 !important;
    color: #F1F5F9 !important;
}

[data-theme="dark"] table,
[data-theme="dark"] table th,
[data-theme="dark"] table td {
    border-color: #334155 !important;
}

/* Timecard Table */
[data-theme="dark"] .timecard-table {
    background: #1E293B !important;
}

[data-theme="dark"] .timecard-table th {
    background: #334155 !important;
    color: #94A3B8 !important;
}

[data-theme="dark"] .timecard-table td {
    border-color: #334155 !important;
    color: #CBD5E1 !important;
}

[data-theme="dark"] .timecard-total {
    background: rgba(96, 165, 250, 0.1) !important;
}

/* Conversion Card */
[data-theme="dark"] .conversion-card {
    background: #0F172A !important;
    border-color: #334155 !important;
}

[data-theme="dark"] .conversion-item {
    border-color: #334155 !important;
}

[data-theme="dark"] .conversion-label {
    color: #94A3B8 !important;
}

[data-theme="dark"] .conversion-value {
    color: #F1F5F9 !important;
}

/* Result Card */
[data-theme="dark"] .result-card {
    background: linear-gradient(135deg, #1E40AF 0%, #1E3A8A 100%) !important;
}

[data-theme="dark"] .result-label,
[data-theme="dark"] .result-time,
[data-theme="dark"] .result-date {
    color: #FFFFFF !important;
}

/* Related Links */
[data-theme="dark"] .related-link {
    background: #1E293B !important;
    border-color: #334155 !important;
    color: #CBD5E1 !important;
}

[data-theme="dark"] .related-link:hover {
    background: #334155 !important;
    border-color: #60A5FA !important;
    color: #60A5FA !important;
}

[data-theme="dark"] .related-link i {
    color: #60A5FA !important;
}

/* Accordion / FAQ */
[data-theme="dark"] .accordion {
    background: transparent;
}

[data-theme="dark"] .accordion-item {
    background: #1E293B !important;
    border-color: #334155 !important;
}

[data-theme="dark"] .accordion-button {
    background: #1E293B !important;
    color: #F1F5F9 !important;
    box-shadow: none !important;
}

[data-theme="dark"] .accordion-button::after {
    filter: invert(1) brightness(0.7);
}

[data-theme="dark"] .accordion-button:not(.collapsed) {
    background: #334155 !important;
    color: #60A5FA !important;
}

[data-theme="dark"] .accordion-button:not(.collapsed)::after {
    filter: invert(0.5) sepia(1) saturate(5) hue-rotate(180deg);
}

[data-theme="dark"] .accordion-body {
    background: #1E293B !important;
    color: #CBD5E1 !important;
    border-top: 1px solid #334155;
}

[data-theme="dark"] .accordion-body a {
    color: #60A5FA !important;
}

[data-theme="dark"] .faq-section {
    background: #0F172A !important;
}

/* Alerts */
[data-theme="dark"] .alert {
    border-color: #334155 !important;
}

[data-theme="dark"] .alert-light {
    background: #334155 !important;
    color: #CBD5E1 !important;
    border-color: #475569 !important;
}

[data-theme="dark"] .alert-info {
    background: rgba(96, 165, 250, 0.1) !important;
    border-color: #3B82F6 !important;
    color: #93C5FD !important;
}

[data-theme="dark"] .alert-success {
    background: rgba(52, 211, 153, 0.1) !important;
    border-color: #10B981 !important;
    color: #6EE7B7 !important;
}

[data-theme="dark"] .alert-warning {
    background: rgba(251, 191, 36, 0.1) !important;
    border-color: #F59E0B !important;
    color: #FCD34D !important;
}

/* Footer */
[data-theme="dark"] .site-footer {
    background: #0F172A !important;
    border-top: 1px solid #1E293B !important;
}

[data-theme="dark"] .footer-brand,
[data-theme="dark"] .footer-brand span {
    color: #F1F5F9 !important;
}

[data-theme="dark"] .footer-heading {
    color: #F1F5F9 !important;
}

[data-theme="dark"] .footer-description {
    color: #94A3B8 !important;
}

[data-theme="dark"] .footer-links a {
    color: #94A3B8 !important;
}

[data-theme="dark"] .footer-links a:hover {
    color: #60A5FA !important;
}

[data-theme="dark"] .footer-divider {
    border-color: #1E293B !important;
}

[data-theme="dark"] .copyright,
[data-theme="dark"] .footer-note {
    color: #64748B !important;
}

[data-theme="dark"] .footer-extra-links {
    border-top-color: #1E293B;
}

[data-theme="dark"] .footer-extra-label {
    color: #94A3B8 !important;
}

[data-theme="dark"] .footer-extra-links a {
    color: #64748B !important;
}

[data-theme="dark"] .footer-extra-links a:hover {
    color: #60A5FA !important;
}

/* Text utilities */
[data-theme="dark"] .text-muted {
    color: #94A3B8 !important;
}

[data-theme="dark"] .text-primary {
    color: #60A5FA !important;
}

[data-theme="dark"] .text-secondary {
    color: #34D399 !important;
}

[data-theme="dark"] .text-dark {
    color: #F1F5F9 !important;
}

[data-theme="dark"] strong {
    color: #F1F5F9;
}

/* Card */
[data-theme="dark"] .card {
    background: #1E293B !important;
    border-color: #334155 !important;
}

[data-theme="dark"] .card-header {
    background: #334155 !important;
    border-color: #475569 !important;
    color: #F1F5F9 !important;
}

[data-theme="dark"] .card-body {
    color: #CBD5E1;
}

/* Badges */
[data-theme="dark"] .badge {
    color: #F1F5F9;
}

/* Breadcrumb */
[data-theme="dark"] .breadcrumb {
    background: #1E293B;
}

[data-theme="dark"] .breadcrumb-item a {
    color: #60A5FA !important;
}

[data-theme="dark"] .breadcrumb-item.active {
    color: #94A3B8 !important;
}

[data-theme="dark"] .breadcrumb-item + .breadcrumb-item::before {
    color: #64748B !important;
}

/* Dark Mode Toggle */
[data-theme="dark"] .dark-mode-toggle {
    color: #F1F5F9 !important;
}

[data-theme="dark"] .dark-mode-toggle:hover {
    background: #334155 !important;
}

[data-theme="dark"] .dark-mode-toggle .bi-moon-fill {
    display: inline-block;
}

[data-theme="dark"] .dark-mode-toggle .bi-sun-fill {
    display: none;
}

/* Selection */
[data-theme="dark"] ::selection {
    background: #3B82F6;
    color: #FFFFFF;
}

/* Scrollbar */
[data-theme="dark"] ::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

[data-theme="dark"] ::-webkit-scrollbar-track {
    background: #0F172A;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: #334155;
    border-radius: 5px;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
    background: #475569;
}

/* Loading */
[data-theme="dark"] .loading::after {
    border-color: #334155;
    border-top-color: #60A5FA;
}

/* Fix time input icons (browser default) in dark mode */
[data-theme="dark"] input[type="time"],
[data-theme="dark"] input[type="date"] {
    color-scheme: dark;
}

[data-theme="dark"] input[type="time"]::-webkit-calendar-picker-indicator,
[data-theme="dark"] input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
}

/* Fix number input spinners in dark mode */
[data-theme="dark"] input[type="number"]::-webkit-inner-spin-button,
[data-theme="dark"] input[type="number"]::-webkit-outer-spin-button {
    filter: invert(1);
}

/* Timer specific */
[data-theme="dark"] #timerDisplay {
    background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%) !important;
}

/* List styles */
[data-theme="dark"] ul li,
[data-theme="dark"] ol li {
    color: #CBD5E1;
}

/* Horizontal rule */
[data-theme="dark"] hr {
    border-color: #334155 !important;
}