/* Ultimate Financial Calculators Styles - Complete Version with Logo */
:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --info-color: #3498db;
    --light-color: #f8f9fa;
    --dark-color: #2c3e50;
    --border-color: #e9ecef;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

/* Reset and Base Styles */
.ufc-container * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.ufc-container {
    max-width: 1200px;
    margin: 20px auto;
    padding: 30px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--light-color);
    border-radius: 20px;
    box-shadow: 0 15px 35px var(--shadow-color);
    position: relative;
    overflow: hidden;
}

.ufc-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    z-index: 10;
}

/* Header Styles with Logo Support */
.ufc-header {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

/* Logo Styles */
.ufc-logo {
    display: flex;
    align-items: center;
    justify-content: center;
}

.ufc-logo img {
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    object-fit: contain;
}

.ufc-logo img:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.ufc-title-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 25px;
    flex-wrap: wrap;
}

.ufc-title-container.ufc-logo-top {
    flex-direction: column;
    gap: 20px;
}

.ufc-title-container.ufc-logo-left {
    justify-content: center;
    flex-direction: row;
}

.ufc-title-container.ufc-logo-right {
    justify-content: center;
    flex-direction: row-reverse;
}

.ufc-logo-top {
    text-align: center;
    margin-bottom: 20px;
}

.ufc-title-text {
    text-align: center;
    flex: 1;
}

.ufc-title-text h2 {
    color: var(--dark-color);
    font-size: 2.8em;
    margin-bottom: 15px;
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.ufc-title-text h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.ufc-title-text p {
    color: #7f8c8d;
    font-size: 1.2em;
    margin-bottom: 0;
    font-weight: 400;
}

/* Tab Navigation */
.ufc-tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 40px;
    background: #fff;
    border-radius: var(--border-radius);
    padding: 15px;
    box-shadow: 0 8px 25px var(--shadow-color);
    gap: 10px;
}

.ufc-tab {
    background: transparent;
    border: 2px solid transparent;
    padding: 15px 25px;
    margin: 5px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    color: #7f8c8d;
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.ufc-tab::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    transition: var(--transition);
    z-index: -1;
}

.ufc-tab:hover {
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.ufc-tab:hover::before {
    left: 0;
}

.ufc-tab.active {
    background: var(--gradient-primary);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
    transform: translateY(-2px);
}

.ufc-tab.active::before {
    left: 0;
}

/* Calculator Content */
.ufc-calculator {
    display: none;
    background: #fff;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px var(--shadow-color);
    position: relative;
}

.ufc-calculator.active {
    display: block;
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from { 
        opacity: 0; 
        transform: translateY(30px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

.calculator-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.input-section, .result-section {
    padding: 30px;
    border-radius: var(--border-radius);
    position: relative;
}

.input-section {
    background: var(--light-color);
    border: 2px solid var(--border-color);
}

.input-section::before {
    content: '📝';
    position: absolute;
    top: -15px;
    left: 20px;
    background: #fff;
    padding: 0 10px;
    font-size: 1.2em;
}

.result-section {
    background: var(--gradient-primary);
    color: white;
    position: relative;
    overflow: hidden;
}

.result-section::before {
    content: '📊';
    position: absolute;
    top: -15px;
    left: 20px;
    background: rgba(255, 255, 255, 0.2);
    padding: 0 10px;
    font-size: 1.2em;
    border-radius: 20px;
}

.result-section::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    pointer-events: none;
}

.calculator-title {
    font-size: 2em;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 30px;
    text-align: center;
    position: relative;
}

.calculator-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

/* Form Elements */
.form-group {
    margin-bottom: 25px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--dark-color);
    font-size: 15px;
    position: relative;
}

.form-group label::after {
    content: '*';
    color: var(--danger-color);
    margin-left: 5px;
    opacity: 0.7;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 16px;
    transition: var(--transition);
    background: #fff;
    position: relative;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

.form-group input:valid {
    border-color: var(--success-color);
}

.form-group input[type="date"]::-webkit-calendar-picker-indicator {
    cursor: pointer;
    filter: invert(0.5);
}

/* Button Styles */
.btn-group {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
    flex-wrap: wrap;
}

.ufc-btn {
    padding: 15px 35px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
    min-width: 140px;
}

.ufc-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: var(--transition);
}

.ufc-btn:hover::before {
    left: 100%;
}

.ufc-btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.ufc-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

.ufc-btn-secondary {
    background: #95a5a6;
    color: white;
    box-shadow: 0 5px 15px rgba(149, 165, 166, 0.3);
}

.ufc-btn-secondary:hover {
    background: #7f8c8d;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(149, 165, 166, 0.4);
}

/* Result Styles */
.result-item {
    background: rgba(255, 255, 255, 0.15);
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.result-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.02);
}

.result-label {
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 8px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.result-value {
    font-size: 1.8em;
    font-weight: 700;
    word-break: break-word;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.profit {
    color: var(--success-color);
    text-shadow: 0 2px 4px rgba(39, 174, 96, 0.3);
}

.loss {
    color: var(--danger-color);
    text-shadow: 0 2px 4px rgba(231, 76, 60, 0.3);
}

.neutral {
    color: var(--info-color);
    text-shadow: 0 2px 4px rgba(52, 152, 219, 0.3);
}

/* About Section */
.calculator-about {
    margin-top: 40px;
    padding: 30px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: var(--border-radius);
    border-left: 5px solid var(--primary-color);
    position: relative;
}

.calculator-about::before {
    content: '💡';
    position: absolute;
    top: -15px;
    left: 20px;
    background: #fff;
    padding: 0 10px;
    font-size: 1.2em;
}

.calculator-about h3 {
    color: var(--dark-color);
    margin-bottom: 20px;
    font-size: 1.6em;
    font-weight: 600;
}

.calculator-about h4 {
    color: #34495e;
    margin: 25px 0 15px;
    font-size: 1.2em;
    font-weight: 600;
}

.calculator-about ul {
    margin-left: 25px;
    color: #7f8c8d;
}

.calculator-about li {
    margin-bottom: 8px;
    line-height: 1.6;
    position: relative;
}

.calculator-about li::before {
    content: '✓';
    color: var(--success-color);
    font-weight: bold;
    position: absolute;
    left: -20px;
}

.calculator-about p {
    line-height: 1.8;
    color: #5d6d7e;
    margin-bottom: 15px;
}

/* Message Styles */
.ufc-message {
    padding: 12px 16px;
    margin-bottom: 15px;
    border-radius: 6px;
    font-weight: 500;
    border-left: 4px solid;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ufc-message.success {
    background-color: #d4edda;
    color: #155724;
    border-left-color: #28a745;
}

.ufc-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border-left-color: #dc3545;
}

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

/* Loading Animation */
.ufc-loading {
    display: none;
    text-align: center;
    padding: 40px;
}

.ufc-spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

/* Fix button states */
.ufc-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Fix tab accessibility */
.ufc-tab:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .ufc-container {
        margin: 15px;
        padding: 25px;
    }
    
    .calculator-content {
        gap: 30px;
    }
    
    .ufc-title-container {
        gap: 20px;
    }
    
    .ufc-logo img {
        max-width: 70px;
        max-height: 70px;
    }
}

@media (max-width: 768px) {
    .ufc-container {
        padding: 20px;
        margin: 10px;
    }
    
    .ufc-tabs {
        flex-direction: column;
        gap: 5px;
    }
    
    .ufc-tab {
        margin: 2px 0;
        text-align: center;
        padding: 12px 20px;
    }
    
    .calculator-content {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .ufc-title-text h2 {
        font-size: 2.2em;
    }
    
    .btn-group {
        flex-direction: column;
        align-items: center;
    }
    
    .ufc-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .input-section,
    .result-section {
        padding: 25px;
    }
    
    /* Logo responsive adjustments */
    .ufc-title-container {
        flex-direction: column;
        gap: 15px;
    }
    
    .ufc-title-container.ufc-logo-left,
    .ufc-title-container.ufc-logo-right {
        flex-direction: column;
    }
    
    .ufc-logo img {
        max-width: 60px;
        max-height: 60px;
    }
}

@media (max-width: 480px) {
    .ufc-container {
        padding: 15px;
        margin: 5px;
    }
    
    .ufc-calculator {
        padding: 25px;
    }
    
    .input-section,
    .result-section {
        padding: 20px;
    }
    
    .calculator-title {
        font-size: 1.6em;
    }
    
    .ufc-title-text h2 {
        font-size: 1.8em;
    }
    
    .result-value {
        font-size: 1.5em;
    }
    
    .form-group input,
    .form-group select {
        padding: 12px 15px;
    }
    
    .ufc-logo img {
        max-width: 50px;
        max-height: 50px;
    }
}

/* Custom Scrollbar */
.ufc-container::-webkit-scrollbar {
    width: 8px;
}

.ufc-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

.ufc-container::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 10px;
}

.ufc-container::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* Print Styles */
@media print {
    .ufc-tabs,
    .btn-group {
        display: none !important;
    }
    
    .ufc-calculator {
        display: block !important;
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .calculator-content {
        grid-template-columns: 1fr;
    }
}

/* Accessibility Enhancements */
.ufc-tab:focus,
.ufc-btn:focus,
.form-group input:focus,
.form-group select:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #000080;
        --secondary-color: #4b0082;
        --success-color: #006400;
        --danger-color: #8b0000;
    }
}

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

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --light-color: #2c3e50;
        --dark-color: #ecf0f1;
        --border-color: #34495e;
    }
    
    .ufc-container {
        background: #34495e;
        color: #ecf0f1;
    }
    
    .ufc-calculator {
        background: #2c3e50;
    }
    
    .input-section {
        background: #34495e;
        border-color: #4a5f7a;
    }
    
    .form-group input,
    .form-group select {
        background: #2c3e50;
        color: #ecf0f1;
        border-color: #4a5f7a;
    }
}