/* Custom CSS for Experience Calculator with Bootstrap */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --success-gradient: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
    --warning-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --info-gradient: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
}

body {
    background: var(--primary-gradient);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Header Styling */
header h1 {
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

/* Card Enhancements */
.card {
    border-radius: 15px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15) !important;
}

.card-header {
    border-radius: 15px 15px 0 0 !important;
}

.bg-gradient-primary {
    background: var(--primary-gradient) !important;
}

.bg-gradient-success {
    background: var(--success-gradient) !important;
}

.bg-gradient-info {
    background: var(--info-gradient) !important;
}

/* Summary card specific styling */
.bg-gradient-success + .card-body {
    background: linear-gradient(135deg, rgba(72, 187, 120, 0.05), rgba(56, 161, 105, 0.05));
}

/* Mode Selection Styling */
.mode-selection .btn-group .btn {
    transition: all 0.3s ease;
    font-weight: 600;
}

.mode-selection .btn-check:checked + .btn {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.mode-selection .alert {
    border: none;
    background: rgba(59, 130, 246, 0.1);
    border-left: 4px solid #3b82f6;
}

.active-desc {
    display: inline !important;
}

#quickModeDesc:not(.active-desc),
#detailedModeDesc:not(.active-desc) {
    display: none !important;
}

/* Form Enhancements */
.form-control {
    border-radius: 8px;
    border: 2px solid #e2e8f0;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    transform: translateY(-1px);
}

.input-group-text {
    border: 2px solid #e2e8f0;
    border-right: none;
    background: #f8fafc;
    color: #667eea;
}

.form-control:focus + .input-group-text,
.input-group-text + .form-control:focus {
    border-color: #667eea;
}

.btn-primary {
    background: var(--primary-gradient);
    border: none;
    border-radius: 10px;
    padding: 12px 24px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
    background: var(--primary-gradient);
    border: none;
}

/* Experience Items */
.experience-item {
    background: white;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    border-left: 4px solid #667eea;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    position: relative;
}

.experience-item:hover {
    transform: translateX(5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.experience-item.current-job {
    background: linear-gradient(135deg, rgba(72, 187, 120, 0.1), rgba(56, 161, 105, 0.1));
    border-left-color: #48bb78;
}

.experience-item.current-job::before {
    content: "🟢 Current";
    position: absolute;
    top: -10px;
    left: 20px;
    background: #48bb78;
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
}

.experience-item.quick-mode {
    border-left-color: #f59e0b;
}

.experience-item.detailed-mode {
    border-left-color: #3b82f6;
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 15px;
    padding-right: 45px; /* Space for delete button */
}

.experience-title {
    font-weight: 700;
    font-size: 1.1rem;
    color: #2d3748;
    margin-bottom: 5px;
}

.experience-company {
    color: #667eea;
    font-weight: 600;
    margin-bottom: 5px;
}

.experience-dates {
    color: #718096;
    font-size: 0.9rem;
}

.experience-duration {
    background: var(--primary-gradient);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
}

.delete-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #e53e3e;
    color: white;
    border: none;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.delete-btn:hover {
    background: #c53030;
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(229, 62, 62, 0.4);
}

/* Summary Statistics */
.summary-stat {
    text-align: center;
    padding: 20px;
    background: rgba(255,255,255,0.95);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    color: #2d3748;
    transition: transform 0.3s ease;
    border: 1px solid rgba(255,255,255,0.2);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.summary-stat:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #667eea;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 10px 0;
    color: #2d3748;
}

.stat-label {
    font-size: 0.9rem;
    color: #4a5568;
    margin: 0;
    font-weight: 600;
}

.stat-exact {
    font-size: 1rem;
    font-weight: 600;
    display: block;
    margin-top: 5px;
    padding: 10px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 8px;
    color: #2d3748;
    border: 1px solid rgba(102, 126, 234, 0.2);
}

/* Individual stat type styling */
.summary-stat:nth-child(1) .stat-icon {
    color: #e53e3e; /* Red for years */
}

.summary-stat:nth-child(2) .stat-icon {
    color: #3182ce; /* Blue for months */
}

.summary-stat:nth-child(3) .stat-icon {
    color: #38a169; /* Green for days */
}

.summary-stat:nth-child(4) .stat-icon {
    color: #d69e2e; /* Orange for exact experience */
}

.summary-stat:nth-child(1) .stat-number {
    color: #e53e3e;
}

.summary-stat:nth-child(2) .stat-number {
    color: #3182ce;
}

.summary-stat:nth-child(3) .stat-number {
    color: #38a169;
}

.summary-stat:nth-child(4) .stat-exact {
    background: rgba(214, 158, 46, 0.1);
    border-color: rgba(214, 158, 46, 0.2);
    color: #744210;
}

/* Message Styling */
.success-message {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1050;
    min-width: 300px;
}

.error-message {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1050;
    min-width: 300px;
}

/* Mode-specific icons */
.quick-mode::after {
    content: "⚡";
    position: absolute;
    top: 15px;
    right: 55px;
    font-size: 1.2rem;
    opacity: 0.6;
}

.detailed-mode::after {
    content: "📋";
    position: absolute;
    top: 15px;
    right: 55px;
    font-size: 1.2rem;
    opacity: 0.6;
}

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

@keyframes countUp {
    from {
        transform: scale(0.5);
        opacity: 0;
    }
    50% {
        transform: scale(1.1);
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.experience-item.new {
    animation: slideIn 0.5s ease-out;
}

/* Animation for stat updates */
.stat-number.updated {
    animation: countUp 0.6s ease-out;
}

.stat-exact.updated {
    animation: slideIn 0.6s ease-out;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .experience-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .delete-btn {
        position: static;
        margin-top: 10px;
        align-self: flex-end;
    }
    
    .quick-mode::after,
    .detailed-mode::after {
        display: none;
    }
    
    .summary-stat {
        padding: 15px 10px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .stat-exact {
        font-size: 0.9rem;
    }
}

/* Flatpickr customization */
.flatpickr-calendar {
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    border: none;
}

.flatpickr-day.selected {
    background: #667eea;
    border-color: #667eea;
}

.flatpickr-day.selected:hover {
    background: #5a67d8;
    border-color: #5a67d8;
}

.flatpickr-months .flatpickr-month {
    background: #667eea;
    color: white;
}

.flatpickr-current-month .flatpickr-monthDropdown-months {
    background: #667eea;
}

/* Utility buttons styling */
.utility-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 20px;
}

.utility-buttons .btn {
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.utility-buttons .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

/* Remove old mode selection styles - now handled by Bootstrap */

/* Form Enhancements */

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #4a5568;
}

input[type="text"],
input[type="date"] {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

input[type="text"]:focus,
input[type="date"]:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.date-inputs {
    display: grid;
    gap: 20px;
}

@media (min-width: 480px) {
    .date-inputs {
        grid-template-columns: 1fr 1fr;
    }
}

.checkbox-wrapper {
    margin-top: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.checkbox-wrapper input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.checkbox-wrapper label {
    margin: 0;
    font-weight: normal;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 14px 28px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    width: 100%;
    margin-top: 10px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

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

.experiences-container {
    min-height: 200px;
}

.no-experience {
    text-align: center;
    color: #a0aec0;
    font-style: italic;
    padding: 40px 20px;
}

.experience-item {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 15px;
    transition: all 0.3s ease;
    position: relative;
}

.experience-item:hover {
    background: #edf2f7;
    border-color: #cbd5e0;
    transform: translateX(5px);
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.experience-title {
    font-weight: 700;
    font-size: 1.1rem;
    color: #2d3748;
}

.experience-company {
    color: #667eea;
    font-weight: 600;
}

.experience-dates {
    color: #718096;
    font-size: 0.9rem;
}

.experience-duration {
    background: #667eea;
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.delete-btn {
    background: #e53e3e;
    color: white;
    border: none;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    position: absolute;
    top: 15px;
    right: 15px;
}

.delete-btn:hover {
    background: #c53030;
    transform: scale(1.1);
}

.summary-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 15px;
    padding: 30px;
    color: white;
    text-align: center;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,0.2);
}

.summary-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.summary-item.detailed {
    flex-direction: column;
    text-align: center;
    padding: 20px 0 10px;
    margin-top: 20px;
    border-top: 2px solid rgba(255,255,255,0.3);
    border-bottom: none;
}

.summary-item .label {
    font-weight: 600;
    opacity: 0.9;
}

.summary-item .value {
    font-size: 1.2rem;
    font-weight: 700;
}

.summary-item.detailed .value {
    font-size: 1.4rem;
    margin-top: 10px;
    background: rgba(255,255,255,0.1);
    padding: 15px;
    border-radius: 10px;
}

footer {
    text-align: center;
    margin-top: 40px;
    color: white;
    opacity: 0.8;
}

/* Animation for new experience items */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.experience-item.new {
    animation: slideIn 0.5s ease-out;
}

/* Success message */
.success-message {
    background: #48bb78;
    color: white;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 600;
    animation: slideIn 0.5s ease-out;
}

/* Error message */
.error-message {
    background: #e53e3e;
    color: white;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 600;
    animation: slideIn 0.5s ease-out;
}

/* Responsive adjustments */
@media (max-width: 767px) {
    .container {
        padding: 15px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .calculator-section,
    .experiences-list,
    .total-experience {
        padding: 20px;
    }
    
    .experience-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .delete-btn {
        position: static;
        margin-top: 10px;
        align-self: flex-end;
    }
}

/* Loading state */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.loading .btn-primary {
    background: #a0aec0;
    cursor: not-allowed;
}

/* Current job indicator */
.current-job {
    background: linear-gradient(135deg, #48bb78 0%, #38a169 100%) !important;
    border-color: #48bb78 !important;
}

.current-job .experience-duration {
    background: #38a169;
}

.current-job::before {
    content: "🟢 Current";
    position: absolute;
    top: -10px;
    left: 20px;
    background: #48bb78;
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
}

/* Mode-specific styling */
.quick-mode {
    border-left: 4px solid #f59e0b;
}

.quick-mode .experience-company {
    color: #f59e0b;
    font-weight: 600;
    font-size: 0.9rem;
}

.detailed-mode {
    border-left: 4px solid #667eea;
}

.quick-mode::after {
    content: "⚡";
    position: absolute;
    top: 15px;
    right: 50px;
    font-size: 1.2rem;
    opacity: 0.7;
}

.detailed-mode::after {
    content: "📋";
    position: absolute;
    top: 15px;
    right: 50px;
    font-size: 1.2rem;
    opacity: 0.7;
}