:root {
    /* Light mode colors */
    --bg-primary: #f8f9fa;
    --bg-card: #ffffff;
    --text-primary: #333333;
    --text-secondary: #6c757d;
    --border-color: rgba(0,0,0,0.05);
    --stats-value: #0d6efd;
    --card-shadow: 0 2px 4px rgba(0,0,0,0.05);
    --hover-shadow: 0 4px 8px rgba(0,0,0,0.1);
    --fun-fact-bg: #e9ecef;
    --heading-color: #333333;
}

[data-theme="dark"] {
    /* Dark mode colors with better contrast */
    --bg-primary: #121212;
    --bg-card: #1e1e1e;
    --text-primary: #ffffff;
    --text-secondary: #e0e0e0;
    --border-color: rgba(255,255,255,0.1);
    --stats-value: #60a5fa;
    --card-shadow: 0 2px 4px rgba(0,0,0,0.3);
    --hover-shadow: 0 4px 8px rgba(0,0,0,0.4);
    --fun-fact-bg: #2d2d2d;
    --heading-color: #ffffff;
}

body { 
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.card {
    background-color: var(--bg-card);
    border: none;
    box-shadow: var(--card-shadow);
    transition: box-shadow 0.3s ease-in-out, background-color 0.3s ease;
}

.card:hover {
    box-shadow: var(--hover-shadow);
}

.nav-tabs .nav-link {
    color: var(--text-secondary);
    font-weight: 500;
}

.nav-tabs .nav-link.active {
    background-color: var(--bg-primary);
    color: var(--stats-value);
    font-weight: 600;
    border-bottom: 3px solid var(--stats-value);
}

.form-control,
.form-select {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.form-control:focus,
.form-select:focus {
    background-color: var(--bg-card);
    border-color: var(--stats-value);
    color: var(--text-primary);
}

.form-label {
    color: var(--text-primary);
    transition: color 0.3s ease;
    margin-bottom: 0.75rem;
}

.stats-value {
    font-size: 2rem;
    font-weight: 600;
    color: var(--stats-value);
}

.stats-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.fun-fact {
    background-color: var(--fun-fact-bg);
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1rem;
    color: var(--text-primary);
}

[data-theme="dark"] .fun-fact {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

h4 {
    color: var(--heading-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

/* Theme toggle container and button styles */
.theme-toggle-wrapper {
    display: flex;
    justify-content: center;
    width: 100%;
    margin-bottom: 4.5rem;
    padding: 0 1rem;
}

#themeToggleBtn {
    background: transparent;
    border: 1px solid var(--stats-value);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    width: 100%;
    justify-content: center;
}

#themeToggleBtn:hover {
    background-color: var(--stats-value);
    color: #000000;
}

/* Form field spacing */
@media screen and (max-width: 991px) {
    .col-lg-3,
    .col-lg-4 {
        margin-bottom: 1.5rem;
    }

    .col-lg-3:last-child,
    .col-lg-4:last-child {
        margin-bottom: 1rem;
    }

    #calculatorForm .row > div:last-child {
        margin-bottom: 0;
    }

    .form-control,
    .form-select {
        margin-bottom: 0;
    }

    #calcCustomSalaryInput {
        margin-top: 1.5rem !important;
    }
}

/* Desktop styles */
@media (min-width: 992px) {
    .theme-toggle-container {
        margin-bottom: 0;
        justify-content: flex-end;
        padding: 0;
    }

    #themeToggleBtn {
        width: auto;
        position: absolute;
        top: -.1rem;
        right: 1rem;
    }

    .heading-responsive {
        margin-top: 0;
    }

    #addEmployeeRow {
        width: 33%;
        min-width: 250px;
    }
    
    .btn-responsive {
        min-width: 100px;
    }
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background-color: #2d2d2d;
    border-color: rgba(255,255,255,0.2);
    color: var(--text-primary);
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
    background-color: #2d2d2d;
    border-color: #60a5fa;
    box-shadow: 0 0 0 0.25rem rgba(96, 165, 250, 0.25);
}

[data-theme="dark"] .nav-tabs {
    border-color: rgba(255,255,255,0.1);
}

[data-theme="dark"] .nav-tabs .nav-link {
    color: #e0e0e0;
}

[data-theme="dark"] .nav-tabs .nav-link.active {
    background-color: transparent;
    border-color: rgba(255,255,255,0.1);
    border-bottom-color: #60a5fa;
    color: #60a5fa;
}

[data-theme="dark"] .btn-outline-danger {
    color: #ff4d4d;
    border-color: #ff4d4d;
}

[data-theme="dark"] .btn-outline-danger:hover {
    color: #ffffff;
    background-color: #ff4d4d;
    border-color: #ff4d4d;
}

.progress {
    background-color: var(--fun-fact-bg);
    border-radius: 100px;
    overflow: hidden;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
}

.progress-bar {
    transition: width 0.3s ease-in-out, background-color 0.3s ease;
    border-radius: 100px;
    background-image: linear-gradient(45deg, 
        rgba(255,255,255,.15) 25%, 
        transparent 25%, 
        transparent 50%, 
        rgba(255,255,255,.15) 50%, 
        rgba(255,255,255,.15) 75%, 
        transparent 75%, 
        transparent);
    background-size: 1rem 1rem;
    animation: progress-bar-stripes 1s linear infinite;
}

.progress-bar-normal {
    background-color: #0d6efd;
}

.progress-bar-warning {
    background-color: #ffc107;
}

.progress-bar-danger {
    background-color: #dc3545;
}

[data-theme="dark"] .progress {
    background-color: rgba(255, 255, 255, 0.1);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.2);
}

.alert {
    border: none;
    backdrop-filter: blur(4px);
    margin-bottom: 1rem;
    padding: 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.alert-warning {
    background-color: rgba(255, 193, 7, 0.1);
    border-left: 4px solid #ffc107;
    color: var(--text-primary);
}

.alert-danger {
    background-color: rgba(220, 53, 69, 0.1);
    border-left: 4px solid #dc3545;
    color: var(--text-primary);
}

[data-theme="dark"] .alert-warning {
    background-color: rgba(255, 193, 7, 0.15);
}

[data-theme="dark"] .alert-danger {
    background-color: rgba(220, 53, 69, 0.15);
}

.btn-responsive {
    padding: 0.5rem 1rem;
    font-size: 1.25rem;
    border-radius: 0.3rem;
}

/* Remove button alignment fix */
.employee-row .col-lg-1 {
    display: flex;
    align-items: flex-end;
    padding-bottom: 1rem;
}

/* Make remove button more compact */
.remove-row {
    padding: 0.5rem 0.75rem;
    font-size: 1rem;
    height: calc(3rem);
}

html {
    transition: background-color 0.3s ease, color 0.3s ease;
}

@keyframes progress-bar-stripes {
    from { background-position: 1rem 0; }
    to { background-position: 0 0; }
}

/* Duration selector specific styles */
.gap-2 {
    gap: 0.5rem;
}

.duration-preset.active,
.calc-duration-preset.active {
    background-color: var(--stats-value);
    color: white;
    border-color: var(--stats-value);
}

#customDurationBtn.active,
#calcCustomDurationBtn.active {
    background-color: var(--stats-value);
    color: white;
    border-color: var(--stats-value);
}

.btn-outline-primary {
    min-width: 60px;
}

#customDurationBtn,
#calcCustomDurationBtn {
    min-width: 80px;
}

/* Dark mode styles for calculation breakdown */
[data-theme="dark"] #calculationBreakdown .text-muted,
[data-theme="dark"] #calculationBreakdown .text-secondary {
    color: rgba(255, 255, 255, 0.75) !important;
}

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

[data-theme="dark"] h5,
[data-theme="dark"] .mt-4 h5 {
    color: var(--heading-color) !important;
}

/* And update this existing section */
[data-theme="dark"] #calculationBreakdown h6,
[data-theme="dark"] #calculationBreakdown strong,
[data-theme="dark"] #costBreakdown h4,
[data-theme="dark"] #costBreakdown h5,
[data-theme="dark"] .calculation-assumptions h6,
[data-theme="dark"] #calculationBreakdown .section-heading,
[data-theme="dark"] .mt-4 h5 {
    color: #ffffff !important;
}

/* Also ensure we have base heading styles */
h4, h5, h6 {
    color: var(--heading-color);
    font-weight: 600;
}

[data-theme="dark"] #calculationBreakdown h6,
[data-theme="dark"] #calculationBreakdown strong,
[data-theme="dark"] #costBreakdown h4,
[data-theme="dark"] .calculation-assumptions h6,
[data-theme="dark"] #calculationBreakdown .section-heading {
    color: #ffffff !important;
}

[data-theme="dark"] #calculationBreakdown .group-heading {
    color: var(--stats-value) !important;
}

[data-theme="dark"] .calculation-assumptions {
    color: rgba(255, 255, 255, 0.75) !important;
}

[data-theme="dark"] #calculationBreakdown ul li {
    color: rgba(255, 255, 255, 0.75) !important;
}

/* Detailed Calculation Styling */
#costBreakdown h4,
#costBreakdown .section-heading,
.calculation-assumptions h6 {
    color: var(--heading-color);
    font-weight: 600;
}