/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8fafc;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand .brand-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #2563eb;
    font-weight: 700;
    font-size: 1.5rem;
}

.nav-brand .brand-link i {
    margin-right: 0.5rem;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #64748b;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
}

.nav-link:hover,
.nav-link.active {
    color: #2563eb;
    background-color: #eff6ff;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle .bar {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Breadcrumb */
.breadcrumb {
    background-color: #f1f5f9;
    padding: 1rem 0;
}

.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.breadcrumb-nav a {
    text-decoration: none;
    color: #2563eb;
}

.breadcrumb-nav .separator {
    color: #94a3b8;
}

/* Hero Search */
.hero-search {
    margin: 2rem 0;
}

.hero-search .search-container {
    margin: 0;
}

.hero-search .search-box {
    max-width: 600px;
}

.hero-search .search-input {
    background: white;
    color: #1e293b;
    font-size: 1.1rem;
    padding: 1.2rem 1.2rem 1.2rem 3.5rem;
}

.hero-search .search-input::placeholder {
    color: #94a3b8;
}

.hero-search .search-icon {
    color: #667eea;
    font-size: 1.1rem;
}

/* Search Suggestions */
.search-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid #e2e8f0;
    border-top: none;
    border-radius: 0 0 1rem 1rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
}

.search-suggestions.active {
    display: block;
}

.suggestion-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    border-bottom: 1px solid #f1f5f9;
    transition: background-color 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.suggestion-item:hover,
.suggestion-item.selected {
    background-color: #f8fafc;
}

.suggestion-item:last-child {
    border-bottom: none;
}

.suggestion-icon {
    color: #667eea;
    width: 16px;
}

.suggestion-text {
    flex: 1;
}

.suggestion-title {
    font-weight: 500;
    color: #1e293b;
    font-size: 0.95rem;
}

.suggestion-category {
    font-size: 0.8rem;
    color: #64748b;
    margin-top: 0.2rem;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.page-title i {
    font-size: 2.5rem;
}

.page-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 2rem;
}

/* Search Container */
.search-container {
    margin-top: 2rem;
}

.search-box {
    position: relative;
    max-width: 500px;
    margin: 0 auto;
}

.search-input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
}

/* Calculators Section */
.calculators-section {
    padding: 4rem 0;
}

.calculators-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.calculator-card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
    position: relative;
}

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

.card-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

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

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1e293b;
}

.card-description {
    color: #64748b;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.card-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tag {
    background-color: #fef3c7;
    color: #d97706;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 500;
}

/* Action Buttons */
.calculator-action {
    margin-top: 1rem;
}

.action-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    justify-content: center;
}

.action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    text-decoration: none;
    color: white;
}

.action-btn i {
    font-size: 0.9rem;
}

/* Contact Section */
.contact-section {
    padding: 4rem 0;
}

.contact-header {
    text-align: center;
    margin-bottom: 4rem;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    background: white;
    border-radius: 1rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.contact-icon {
    width: 3rem;
    height: 3rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    color: white;
    font-size: 1.25rem;
}

.contact-details h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1e293b;
}

.contact-details p {
    color: #64748b;
    margin-bottom: 1rem;
}

.contact-link {
    color: #2563eb;
    text-decoration: none;
    font-weight: 500;
}

.contact-link:hover {
    text-decoration: underline;
}

/* Contact Form */
.contact-form-container {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.contact-form h2 {
    margin-bottom: 2rem;
    color: #1e293b;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #374151;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e5e7eb;
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2563eb;
}

.btn {
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

/* FAQ Section */
.faq-section {
    margin-top: 4rem;
}

.faq-section h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #1e293b;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.faq-item {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.faq-item h3 {
    color: #1e293b;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.faq-item p {
    color: #64748b;
    line-height: 1.6;
}

/* Privacy Section */
.privacy-section {
    padding: 4rem 0;
}

.privacy-header {
    text-align: center;
    margin-bottom: 3rem;
}

.privacy-content {
    max-width: 800px;
    margin: 0 auto;
}

.privacy-summary {
    background: white;
    padding: 3rem;
    border-radius: 1rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    margin-bottom: 3rem;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

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

.summary-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

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

.privacy-text {
    background: white;
    padding: 3rem;
    border-radius: 1rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.privacy-text h2 {
    color: #1e293b;
    margin: 2rem 0 1rem;
    font-size: 1.5rem;
}

.privacy-text h3 {
    color: #374151;
    margin: 1.5rem 0 0.75rem;
    font-size: 1.2rem;
}

.privacy-text p {
    color: #64748b;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.privacy-text ul {
    margin: 1rem 0;
    padding-left: 2rem;
}

.privacy-text li {
    color: #64748b;
    margin-bottom: 0.5rem;
}

/* Footer */
.footer {
    background-color: #1e293b;
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-brand i {
    color: #667eea;
}

.footer-description {
    color: #94a3b8;
    line-height: 1.6;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 2rem;
    text-align: center;
    color: #94a3b8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .calculators-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .summary-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .calculator-card {
        padding: 1.5rem;
    }
    
    .page-header {
        padding: 2rem 0;
    }
    
    .calculators-section {
        padding: 2rem 0;
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 6rem 0;
    text-align: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 3rem;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    display: block;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.8;
}

/* Categories Section */
.categories-section {
    padding: 4rem 0;
    background-color: white;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1e293b;
}

.section-subtitle {
    font-size: 1.2rem;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.category-card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    text-decoration: none;
    color: inherit;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: #667eea;
    text-decoration: none;
    color: inherit;
}

.category-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

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

.category-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1e293b;
}

.category-description {
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.category-count {
    color: #667eea;
    font-weight: 500;
    font-size: 0.9rem;
}

/* Features Section */
.features-section {
    padding: 4rem 0;
    background-color: #f8fafc;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-item {
    text-align: center;
    padding: 2rem;
}

.feature-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

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

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1e293b;
}

.feature-description {
    color: #64748b;
    line-height: 1.6;
}