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

html {
    scroll-behavior: smooth;
}

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

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

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(59, 130, 246, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #3B82F6, #10B981);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #6B7280;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #3B82F6;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #EBF4FF 0%, #E0F2FE 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    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="50" cy="50" r="0.5" fill="%233B82F6" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 2;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #1E40AF, #3B82F6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #6B7280;
    max-width: 600px;
    margin: 0 auto;
}

/* Converter Form */
.converter-form-container {
    max-width: 500px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 20px 60px rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.1);
}

.form-title {
    font-size: 1.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 2rem;
    color: #1F2937;
}

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

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

.form-select,
.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid #E5E7EB;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background-color: #F9FAFB;
}

.form-select:focus,
.form-input:focus {
    outline: none;
    border-color: #3B82F6;
    background-color: white;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* File Upload Area */
.file-upload-area {
    border: 2px dashed #D1D5DB;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    background: #F9FAFB;
    position: relative;
    cursor: pointer;
}

.file-upload-area:hover {
    border-color: #3B82F6;
    background: #EBF4FF;
}

.file-upload-area.dragover {
    border-color: #10B981;
    background: #ECFDF5;
    transform: scale(1.02);
}

.file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.upload-text {
    font-size: 1rem;
    color: #6B7280;
    margin-bottom: 0.5rem;
}

.upload-link {
    color: #3B82F6;
    font-weight: 500;
}

.upload-info {
    font-size: 0.875rem;
    color: #9CA3AF;
}

.file-selected {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #EBF4FF;
    padding: 1rem;
    border-radius: 8px;
}

.file-name {
    font-weight: 500;
    color: #1E40AF;
}

.file-remove {
    background: #EF4444;
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    cursor: pointer;
    font-size: 1rem;
}

/* CTA Button */
.cta-button {
    width: 100%;
    background: linear-gradient(135deg, #3B82F6, #1E40AF);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 1rem 2rem;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

.cta-button:active {
    transform: translateY(0);
}

.cta-button.secondary {
    background: linear-gradient(135deg, #10B981, #059669);
    width: auto;
    min-width: 250px;
}

.button-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Form Benefits */
.form-benefits {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.benefit {
    font-size: 0.875rem;
    color: #10B981;
    font-weight: 500;
}

/* Section Styles */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: #1F2937;
}

.section-subtitle {
    font-size: 1.25rem;
    color: #6B7280;
    text-align: center;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Problem Section */
.problem-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
}

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

.problem-card {
    text-align: center;
    padding: 2rem;
    border-radius: 16px;
    background: white;
    border: 1px solid rgba(59, 130, 246, 0.1);
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.1);
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(59, 130, 246, 0.15);
}

.problem-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.problem-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1F2937;
}

.problem-description {
    color: #6B7280;
    line-height: 1.6;
}

/* How It Works Section */
.how-it-works {
    padding: 80px 0;
    background: white;
}

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

.step-card {
    text-align: center;
    padding: 2rem;
    background: #F8FAFC;
    border-radius: 16px;
    border: 1px solid #E2E8F0;
    position: relative;
    transition: all 0.3s ease;
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.step-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #3B82F6, #1E40AF);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.step-icon {
    font-size: 3rem;
    margin: 1rem 0;
}

.step-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1F2937;
}

.step-description {
    color: #6B7280;
    line-height: 1.6;
}

/* Target Audience Section */
.target-audience {
    padding: 80px 0;
    background: white;
}

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

.audience-card {
    text-align: center;
    padding: 2rem;
    border-radius: 16px;
    background: linear-gradient(135deg, #F8FAFC 0%, #F1F5F9 100%);
    border: 1px solid #E2E8F0;
    transition: all 0.3s ease;
}

.audience-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    background: linear-gradient(135deg, #EBF4FF 0%, #DBEAFE 100%);
}

.audience-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.audience-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1F2937;
}

.audience-description {
    color: #6B7280;
    line-height: 1.6;
}

/* Supported Banks Section */
.supported-banks {
    padding: 80px 0;
    background: linear-gradient(135deg, #F9FAFB 0%, #F3F4F6 100%);
}

.banks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.bank-logo {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    font-weight: 600;
    color: #374151;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80px;
}

.bank-logo img {
    max-width: 100%;
    max-height: 50px;
    height: auto;
    object-fit: contain;
}

.bank-logo:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: #3B82F6;
}

.banks-info {
    text-align: center;
    color: #6B7280;
    font-size: 1.125rem;
}

.inline-link {
    color: #3B82F6;
    text-decoration: none;
    font-weight: 500;
}

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

/* FAQ Section */
.faq-section {
    padding: 80px 0;
    background: white;
}

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

.faq-item {
    background: #F8FAFC;
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid #E2E8F0;
    transition: all 0.3s ease;
}

.faq-item:hover {
    background: #EBF4FF;
    border-color: #3B82F6;
    transform: translateY(-2px);
}

.faq-question {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1F2937;
}

.faq-answer {
    color: #6B7280;
    line-height: 1.6;
}

/* Second CTA Section */
.second-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #1E40AF 0%, #3B82F6 100%);
    text-align: center;
    color: white;
}

.second-cta .section-title {
    color: white;
}

.second-cta .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

/* Footer */
.footer {
    background: #1F2937;
    color: white;
    padding: 60px 0 30px;
}

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

.footer-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #3B82F6, #10B981);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-heading {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #F9FAFB;
}

.footer-description {
    color: #9CA3AF;
    line-height: 1.6;
}

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

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

.footer-links a {
    color: #9CA3AF;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #3B82F6;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
    color: #9CA3AF;
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    max-width: 400px;
    width: 90%;
    position: relative;
    text-align: center;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: #9CA3AF;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: #EF4444;
}

.modal-content h3 {
    margin-bottom: 1rem;
    color: #1F2937;
    font-size: 1.5rem;
}

.modal-content p {
    color: #6B7280;
    line-height: 1.6;
    margin-bottom: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav {
        gap: 1rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .converter-form-container {
        margin: 0 1rem;
        padding: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .problem-grid,
    .steps-grid,
    .audience-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .banks-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-benefits {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .converter-form-container {
        padding: 1.5rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .banks-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-button {
        font-size: 1rem;
        padding: 0.875rem 1.5rem;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeIn 0.8s ease forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    animation: slideInLeft 0.8s ease forwards;
}

@keyframes slideInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    animation: slideInRight 0.8s ease forwards;
}

@keyframes slideInRight {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Loading Animation */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.spinning {
    animation: spin 1s linear infinite;
}

/* Utility Classes */
.text-center { text-align: center; }
.hidden { display: none !important; }
.visible { display: block !important; }