/* Modern Professional Styling for Proxy Checker */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --success-color: #16a34a;
    --danger-color: #dc2626;
    --warning-color: #d97706;
    --text-color: #1f2937;
    --bg-color: #f3f4f6;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
    --hover-bg: #f8fafc;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.header {
    background-color: var(--card-bg);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    margin-left: 2rem;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.card {
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 2rem;
    margin-bottom: 2rem;
        margin-top: 5.4rem;
}

.card-header {
    margin-bottom: 1.5rem;
    border-bottom: 1px solid #e5e7eb;
    padding-bottom: 1rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
}

.input-group {
    margin-bottom: 1.5rem;
}

.input-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.radio-group {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    resize: vertical;
    min-height: 150px;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
}

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

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

.btn-secondary {
    background-color: #e5e7eb;
    color: var(--text-color);
}

.btn-secondary:hover {
    background-color: #d1d5db;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.results-table th,
.results-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
}

.results-table th {
    background-color: #f8fafc;
    font-weight: 600;
}

.results-table tr:hover {
    background-color: #f8fafc;
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
}

.badge-success {
    background-color: #dcfce7;
    color: var(--success-color);
}

.badge-danger {
    background-color: #fee2e2;
    color: var(--danger-color);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background-color: #e5e7eb;
    border-radius: 4px;
    overflow: hidden;
    margin: 1rem 0;
}

.progress-bar-fill {
    height: 100%;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.footer {
    background-color: var(--card-bg);
    padding: 2rem 0;
    margin-top: 4rem;
    border-top: 1px solid #e5e7eb;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    text-align: center;
    color: #6b7280;
}

.hidden {
    display: none;
}

.alert {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
}

.alert-warning {
    background-color: #fef3c7;
    color: var(--warning-color);
    border: 1px solid #fde68a;
}

.alert-success {
    background-color: #dcfce7;
    color: var(--success-color);
    border: 1px solid #bbf7d0;
}

.btn-group {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
}

.loading-spinner {
    display: inline-block;
    width: 1.5rem;
    height: 1.5rem;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Loading spinner styles */
.spinner-border {
    width: 3rem;
    height: 3rem;
    margin-bottom: 1rem;
}

/* Responsive table */
@media (max-width: 768px) {
    .table-responsive {
        margin-bottom: 1rem;
    }
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.feature-item {
    background-color: var(--hover-bg);
    border-radius: 12px;
    padding: 2rem;
    text-align: left;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}

.feature-icon {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon i {
    font-size: 1.5rem;
    color: white;
}

.feature-item h3 {
    color: var(--text-color);
    font-size: 1.25rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-item p {
    color: #6b7280;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: #4b5563;
    font-size: 0.9rem;
}

.feature-list li i {
    color: var(--success-color);
    font-size: 0.8rem;
}

/* Features Summary */
.features-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.summary-item {
    text-align: center;
}

.summary-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.summary-item h4 {
    color: var(--text-color);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.summary-item p {
    color: #6b7280;
    font-size: 0.9rem;
}

/* Form Section Enhancements */
.form-section {
    position: relative;
}

.card-subtitle {
    color: #6b7280;
    margin-top: 0.5rem;
    font-size: 1rem;
}

.form-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.form-stats {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #6b7280;
    font-size: 0.9rem;
}

.stat-item i {
    color: var(--primary-color);
}

.text-success {
    color: var(--success-color);
}

/* Input Enhancements */
.input-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.input-tip {
    font-size: 0.85rem;
    color: #6b7280;
    margin-left: 0.5rem;
}

.file-upload-container {
    position: relative;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    background-color: var(--hover-bg);
}

.file-upload-container:hover {
    border-color: var(--primary-color);
}

.file-upload-text {
    color: #6b7280;
}

.file-upload-text i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: block;
}

/* Progress Enhancements */
.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.progress-header h4 {
    color: var(--text-color);
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Table Enhancements */
.results-table th i {
    margin-right: 0.5rem;
    color: var(--primary-color);
}

/* Footer Enhancements */
.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-info {
    text-align: left;
}

.footer-stats {
    display: flex;
    gap: 2rem;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .features-summary {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-stats {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Loading States */
.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn .fa-spinner {
    margin-right: 0.5rem;
}

.fa-spin {
    animation: spin 1s linear infinite;
}

/* Table Improvements */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: 1rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    border-radius: 6px;
}

.results-table {
    min-width: 800px;
}

.results-table th {
    position: sticky;
    top: 0;
    background-color: #f8fafc;
    z-index: 10;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

/* Responsive Improvements */
@media (max-width: 768px) {
    .btn-group {
        flex-direction: column;
    }
    
    .nav-links a {
        margin-left: 1rem;
    }
    
    .card {
        padding: 1rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* File Input Styling */
input[type="file"] {
    display: block;
    width: 100%;
    padding: 0.75rem;
    border: 1px dashed #e5e7eb;
    border-radius: 6px;
    background-color: #f8fafc;
    cursor: pointer;
}

input[type="file"]:hover {
    border-color: var(--primary-color);
}

/* Radio Button Styling */
input[type="radio"] {
    appearance: none;
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid #e5e7eb;
    border-radius: 50%;
    margin-right: 0.5rem;
    position: relative;
    cursor: pointer;
}

input[type="radio"]:checked {
    border-color: var(--primary-color);
}

input[type="radio"]:checked::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0.75rem;
    height: 0.75rem;
    background-color: var(--primary-color);
    border-radius: 50%;
}

/* Progress Bar Animation */
.progress-bar-fill {
    transition: width 0.3s ease;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

/* Badge Animations */
.badge {
    transition: transform 0.2s ease;
}

.badge:hover {
    transform: scale(1.05);
}

/* Residential Proxies Textarea Styles */
.result-textarea {
    width: 100%;
    min-height: 200px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--hover-bg);
    font-family: monospace;
    font-size: 14px;
    line-height: 1.5;
    resize: vertical;
    margin-top: 1rem;
}

.result-textarea:read-only {
    background-color: var(--hover-bg);
    cursor: text;
}

.textarea-container {
    margin-top: 1rem;
    position: relative;
}

/* Residential Results Container Styles */
.residential-results-container {
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.residential-results-container .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.residential-results-container .btn-group {
    margin: 0;
}

.residential-results-container .table-responsive {
    margin-top: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.residential-results-container .results-table {
    margin-top: 0;
}

/* Registration Page Styles */
.form-container {

    margin: 0 auto;
}

.google-login-container {
    margin-bottom: 2rem;
}

.btn-google {
    width: 100%;
    background-color: #fff;
    color: #757575;
    border: 1px solid #dadce0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.75rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-google:hover {
    background-color: #f8f9fa;
    border-color: #dadce0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.btn-google i {
    font-size: 1.25rem;
}

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 2rem 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.divider span {
    padding: 0 1rem;
    color: #6b7280;
    font-size: 0.875rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.has-error .form-control {
    border-color: var(--danger-color);
}

.help-block {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: block;
}

.form-footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.form-footer p {
    color: #6b7280;
}

.form-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.form-footer a:hover {
    text-decoration: underline;
}

/* Privacy Policy and Terms of Service Pages */
.privacy-content,
.terms-content {
    padding: 2rem;
}

.privacy-section,
.terms-section {
    margin-bottom: 2rem;
}

.privacy-section h3,
.terms-section h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.privacy-section p,
.terms-section p {
    margin-bottom: 1rem;
    line-height: 1.6;
}

.privacy-section ul,
.terms-section ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.privacy-section li,
.terms-section li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

/* About Us Page */
.about-content {
    padding: 2rem;
}

.about-section {
    margin-bottom: 2rem;
}

.about-section h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.about-section p {
    margin-bottom: 1rem;
    line-height: 1.6;
}

.about-section ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.about-section li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
    display: flex;
    align-items: center;
}

.about-section li i {
    margin-right: 0.5rem;
    color: var(--primary-color);
}

/* Contact Us Page */
.contact-content {
    padding: 2rem;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.contact-item {
    text-align: center;
    padding: 1.5rem;
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.contact-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.contact-item h3 {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.contact-item p {
    color: var(--text-color);
    line-height: 1.6;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--card-bg);
    color: var(--text-color);
    transition: border-color 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-control.error {
    border-color: var(--danger-color);
}

.error-message {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: block;
}

.alert {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
}

.alert i {
    margin-right: 0.5rem;
}

.alert-success {
    background-color: rgba(40, 167, 69, 0.1);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .contact-info {
        grid-template-columns: 1fr;
    }

    .privacy-content,
    .terms-content,
    .about-content,
    .contact-content {
        padding: 1rem;
    }

    .privacy-section h3,
    .terms-section h3,
    .about-section h3 {
        font-size: 1.25rem;
    }
}