/* TechnoSevin Calculator Styles - Version 3.15.3 */
@import url('https://fonts.googleapis.com/css2?family=Vazir:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #0E01FA;
    --secondary-color: #FD6915;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #FD6915;
    --dark-color: #1a252f;
    --light-color: #ecf0f1;
    --white: #ffffff;
    --border-radius: 12px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --gradient-primary: linear-gradient(135deg, #0E01FA 0%, #FD6915 100%);
    --gradient-secondary: linear-gradient(135deg, #FD6915 0%, #0E01FA 100%);
    --gradient-success: linear-gradient(135deg, #0E01FA 0%, #27ae60 100%);
}

* {
    box-sizing: border-box;
}

.technosevin-calculator-container {
    font-family: 'Vazir', sans-serif;
    direction: rtl;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background: #f8f9fa;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.calculator-header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px 0;
    background: var(--primary-color);
    border-radius: var(--border-radius);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.calculator-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="25" cy="75" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="75" cy="25" r="1" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.calculator-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 10px 0;
    position: relative;
    z-index: 1;
}

.calculator-subtitle {
    font-size: 1.1rem;
    font-weight: 300;
    margin: 0;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

.calculator-tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.tab-button {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 15px 25px;
    background: var(--white);
    border: 2px solid #e1e8ed;
    border-radius: var(--border-radius);
    font-family: 'Vazir', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    color: var(--primary-color);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.tab-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    transition: left 0.3s ease;
    z-index: -1;
}

.tab-button i {
    position: relative;
    z-index: 1;
    transition: color 0.3s ease;
}

.tab-button {
    color: var(--primary-color);
    z-index: 1;
    position: relative;
}

.tab-button:hover::before,
.tab-button.active::before {
    left: 0;
}

.tab-button:hover,
.tab-button.active {
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.tab-button.active {
    color: white !important;
    background-color: var(--primary-color) !important;
}

.tab-button:hover {
    color: white !important;
}

.tab-button.active i,
.tab-button:hover i {
    color: white !important;
}

body .technosevin-calculator-container .calculator-tabs .tab-button.active {
    color: #ffffff !important;
    background: #0E01FA !important;
}

body .technosevin-calculator-container .calculator-tabs .tab-button.active::before {
    display: none !important;
}

body .technosevin-calculator-container .calculator-tabs .tab-button.active i {
    color: #ffffff !important;
}

body .technosevin-calculator-container .calculator-tabs .tab-button:hover {
    color: #ffffff !important;
}

body .technosevin-calculator-container .calculator-tabs .tab-button:hover i {
    color: #ffffff !important;
}

.tab-button.active {
    color: white !important;
    background: #0E01FA !important;
    border-color: #0E01FA !important;
}

.tab-button.active i::before {
    color: white !important;
}

.calculator-form {
    display: none;
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.calculator-form.active {
    display: block;
    animation: fadeInUp 0.4s ease;
}

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

.form-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f1f2f6;
}

.form-header h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0 0 10px 0;
}

.form-header p {
    color: #7f8fa6;
    margin: 0;
    font-size: 1rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    position: relative;
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 8px;
    font-size: 1rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #e1e8ed;
    border-radius: var(--border-radius);
    font-family: 'Vazir', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(14, 1, 250, 0.1);
}

.form-group .unit {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #7f8fa6;
    font-size: 0.9rem;
    pointer-events: none;
    margin-top: 16px;
}

.form-group input[type="number"] {
    padding-left: 50px;
}

.limit-text {
    color: var(--warning-color);
    font-size: 0.8rem;
    margin-top: 5px;
    display: block;
}

.price-info {
    background: linear-gradient(135deg, rgba(14, 1, 250, 0.1) 0%, rgba(253, 105, 21, 0.1) 100%);
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    border-right: 4px solid var(--warning-color);
}

.price-info p {
    margin: 5px 0;
    color: var(--dark-color);
}

.calculate-btn {
    width: 100%;
    padding: 18px 30px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius);
    font-family: 'Vazir', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
    position: relative;
    overflow: hidden;
}

.calculate-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    transition: left 0.3s ease;
    z-index: -1;
}

.calculate-btn:hover::before {
    left: 0;
}

.calculate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    color: #ffffff !important;
}

.calculate-btn span,
.calculate-btn i {
    position: relative;
    z-index: 2;
    color: white;
}

.calculate-btn:hover span,
.calculate-btn:hover i {
    color: #ffffff !important;
}

.technosevin-calculator-container .calculate-btn:hover {
    color: #ffffff !important;
}

.technosevin-calculator-container .calculate-btn:hover span,
.technosevin-calculator-container .calculate-btn:hover i {
    color: #ffffff !important;
}

body .technosevin-calculator-container .calculator-form .calculate-btn:hover {
    color: #ffffff !important;
}

body .technosevin-calculator-container .calculator-form .calculate-btn:hover span,
body .technosevin-calculator-container .calculator-form .calculate-btn:hover i {
    color: #ffffff !important;
}

.calculate-btn:hover * {
    color: #ffffff !important;
}

.calculation-result {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    margin-top: 20px;
    animation: slideInUp 0.4s ease;
}

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

.result-header {
    text-align: center;
    margin-bottom: 20px;
}

.result-header h3 {
    color: var(--primary-color);
    margin: 0;
}

.result-content {
    text-align: center;
}

.result-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--success-color);
    margin-bottom: 10px;
}

.result-details {
    color: #7f8fa6;
    font-size: 1rem;
}

.loading-spinner {
    text-align: center;
    padding: 40px;
}

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

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

.error-message {
    background: var(--accent-color);
    color: var(--white);
    padding: 15px;
    border-radius: var(--border-radius);
    margin-top: 20px;
    text-align: center;
}

@media (max-width: 768px) {
    .technosevin-calculator-container {
        padding: 15px;
    }
    
    .calculator-title {
        font-size: 2rem;
    }
    
    .calculator-tabs {
        flex-direction: column;
    }
    
    .tab-button {
        width: 100%;
        justify-content: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .calculator-form {
        padding: 20px;
    }
    
    .result-price {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .calculator-title {
        font-size: 1.8rem;
    }
    
    .calculator-subtitle {
        font-size: 1rem;
    }
    
    .tab-button {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
    
    .calculator-form {
        padding: 15px;
    }
    
    .form-group input,
    .form-group select {
        padding: 12px 15px;
    }
    
    .calculate-btn {
        padding: 15px 25px;
        font-size: 1rem;
    }
}

.icon-telescope::before { content: "⛱️"; }
.icon-roof::before { content: "⛺"; }
.icon-curtain::before { content: "🪟"; }
.icon-calculate::before { content: "✨"; }

.form-group input:invalid {
    border-color: var(--accent-color);
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.form-group:hover label {
    color: var(--primary-color);
}

.technosevin-calculator-container input[type="number"]::-webkit-outer-spin-button,
.technosevin-calculator-container input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.technosevin-calculator-container input[type="number"] {
    -moz-appearance: textfield;
}

.calculation-error {
    background: var(--accent-color);
    color: var(--white);
    padding: 15px;
    border-radius: var(--border-radius);
    margin-top: 20px;
    text-align: center;
    animation: slideInDown 0.4s ease;
}

.calculation-error .error-content {
    font-weight: 500;
    position: relative;
    padding-right: 25px;
}

.calculation-error .error-content::before {
    content: "⚠️";
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
}

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

@media screen and (-webkit-min-device-pixel-ratio: 2) {
    .form-group input[type="number"] {
        font-size: 16px;
    }
    
    .form-group input[type="number"] {
        font-size: 16px;
    }
    
    .form-group input[type="number"]:focus {
        font-size: 16px;
    }
}

@media screen and (-webkit-min-device-pixel-ratio: 2) and (orientation: portrait) {
    .calculator-tabs {
        flex-direction: column;
    }
    
    .tab-button {
        width: 100%;
    }
    
    .form-group input[type="number"] {
        font-size: 16px;
    }
}

.form-group input.error {
    border-color: var(--accent-color);
    background-color: rgba(231, 76, 60, 0.1);
}

.form-group input.error:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
}

.validation-error {
    color: var(--accent-color);
    font-size: 0.8rem;
    margin-top: 5px;
    display: block;
    animation: fadeInError 0.3s ease;
    font-weight: 500;
}

@keyframes fadeInError {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-group input.success {
    border-color: var(--success-color);
    background-color: rgba(39, 174, 96, 0.1);
}

.form-group input.success:focus {
    border-color: var(--success-color);
    box-shadow: 0 0 0 3px rgba(39, 174, 96, 0.1);
}

.form-group input[type="number"],
.form-group input[data-number-field="true"] {
    -webkit-appearance: none;
    -moz-appearance: textfield;
}

.form-group input[type="number"][lang="fa"],
.form-group input[data-number-field="true"][lang="fa"] {
    -webkit-appearance: none;
    -moz-appearance: textfield;
}

.form-group input[type="number"]:invalid,
.form-group input[data-number-field="true"]:invalid {
    border-color: var(--accent-color);
}

.form-group input[type="number"]:valid,
.form-group input[data-number-field="true"]:valid {
    border-color: var(--success-color);
}

.form-group input[type="number"][lang="fa"]:focus,
.form-group input[data-number-field="true"][lang="fa"]:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(14, 1, 250, 0.1);
}

.keyboard-warning {
    background: var(--warning-color);
    color: var(--white);
    padding: 10px 15px;
    border-radius: 8px;
    margin-top: 8px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
    animation: slideInWarning 0.3s ease;
}

.keyboard-warning .warning-icon {
    font-size: 1.2rem;
}

.keyboard-warning .warning-text {
    font-weight: 500;
}

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

@media (max-width: 768px) {
    .keyboard-warning {
        font-size: 0.8rem;
        padding: 8px 12px;
    }
    
    .keyboard-warning .warning-icon {
        font-size: 1rem;
    }
}

.test-result {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-top: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.test-result h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.test-result p {
    color: #666;
    margin: 5px 0;
}

.loading-spinner {
    text-align: center;
    padding: 40px;
}

@media (hover: none) and (pointer: coarse) {
    .calculate-btn {
        min-height: 44px;
    }
    
    .tab-button {
        min-height: 44px;
    }
}