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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.nav-brand h2 {
    color: white;
    font-size: 1.5rem;
}

.hamburger {
    display: flex;
    flex-direction: column;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: white;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 3px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.nav-menu {
    position: fixed;
    top: 70px;
    right: -100%;
    width: 100%;
    max-width: 400px;
    height: calc(100vh - 70px);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    flex-direction: column;
    gap: 0;
    padding: 2rem 0;
    transition: right 0.3s ease;
    box-shadow: -5px 0 15px rgba(0,0,0,0.2);
    z-index: 1000;
    list-style: none;
    align-items: stretch;
}

.nav-menu.active {
    right: 0;
}

.nav-menu li {
    width: 100%;
    text-align: center;
    padding: 0.5rem 0;
}

.nav-menu a {
    display: block;
    padding: 1rem 2rem;
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-menu a:hover {
    background: rgba(255, 255, 255, 0.1);
}

.nav-menu a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    opacity: 0.8;
    border-bottom: 2px solid white;
}

.btn-nav {
    background: white !important;
    color: #667eea !important;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    border-bottom: none !important;
    opacity: 1 !important;
}

.btn-nav:hover {
    background: #f0f0f0 !important;
    color: #5568d3 !important;
    opacity: 1 !important;
}

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

.hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.refund-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    display: inline-block;
    margin-bottom: 2rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

.btn-primary {
    display: inline-block;
    background: white;
    color: #667eea;
    padding: 1rem 2.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

.btn-large {
    padding: 1.2rem 3rem;
    font-size: 1.2rem;
}

/* Section Styles */
.section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

.bg-light {
    background: #f8f9fa;
}

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

.step-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.step-card:hover {
    transform: translateY(-5px);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.step-card h3 {
    color: #333;
    margin-bottom: 1rem;
}

.step-card p {
    color: #666;
}

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

.benefit-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.benefit-card:hover {
    transform: translateY(-5px);
}

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

.benefit-card h3 {
    color: #333;
    margin-bottom: 1rem;
}

.benefit-card p {
    color: #666;
}

/* Calculator Section */
.calculator {
    background: white;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    max-width: 600px;
    margin: 0 auto;
}

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

.calc-input-group {
    margin-bottom: 2rem;
}

.calc-input-group label {
    display: block;
    margin-bottom: 1rem;
    font-weight: 600;
    color: #333;
}

.calc-input-group input {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1.1rem;
    text-align: center;
}

.calc-results {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.calc-result {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 10px;
}

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

.calc-result.highlight .calc-label,
.calc-result.highlight .calc-value {
    color: white;
}

.calc-label {
    font-weight: 600;
    color: #666;
}

.calc-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #667eea;
}

.refund-note {
    margin-top: 1.5rem;
    padding: 1rem;
    background: #e8f5e9;
    border-radius: 10px;
    border-left: 4px solid #4caf50;
}

.refund-note p {
    margin: 0;
    color: #2e7d32;
    font-size: 0.95rem;
}

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

.testimonial-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.testimonial-content {
    margin-bottom: 1.5rem;
}

.testimonial-content p {
    font-style: italic;
    color: #666;
    line-height: 1.8;
}

.testimonial-author {
    border-top: 1px solid #e0e0e0;
    padding-top: 1rem;
}

.testimonial-author strong {
    display: block;
    color: #333;
    margin-bottom: 0.3rem;
}

.testimonial-author span {
    color: #666;
    font-size: 0.9rem;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.cta-content h2 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-note {
    margin-top: 1.5rem;
    font-size: 0.9rem;
    opacity: 0.9;
}

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

.about-hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text h2 {
    color: #333;
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.about-text p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.8;
    font-size: 1.1rem;
}

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

.value-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

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

.value-card h3 {
    color: #333;
    margin-bottom: 1rem;
}

.value-card p {
    color: #666;
}

/* Operation Content */
.operation-content {
    max-width: 900px;
    margin: 0 auto;
}

.operation-item {
    margin-bottom: 2.5rem;
    padding: 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.operation-item h3 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.operation-item p {
    color: #666;
    line-height: 1.8;
}

/* Why Choose */
.why-choose {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.why-item {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.why-item h3 {
    color: #333;
    margin-bottom: 1rem;
}

.why-item p {
    color: #666;
    line-height: 1.8;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 3rem 0 1rem;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section p {
    color: #bdc3c7;
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

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

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
    color: #bdc3c7;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        max-width: 100%;
    }

    .btn-nav {
        margin: 1rem auto;
        display: inline-block;
        width: auto;
        padding: 0.8rem 2rem;
    }

    .hero {
        padding: 2rem 0;
    }

    .hero-title {
        font-size: 1.5rem;
        padding: 0 1rem;
        line-height: 1.3;
    }

    .hero-subtitle {
        font-size: 0.95rem;
        padding: 0 1rem;
        line-height: 1.5;
    }

    .refund-badge {
        font-size: 0.85rem;
        padding: 0.6rem 1.2rem;
        margin: 1rem auto;
        display: block;
        width: fit-content;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
        padding: 0 1rem;
        margin-bottom: 2rem;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .stat-label {
        font-size: 0.9rem;
    }

    .section {
        padding: 2.5rem 0;
    }

    .section-title {
        font-size: 1.6rem;
        padding: 0 1rem;
        margin-bottom: 2rem;
    }

    .steps {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .testimonials {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .calculator {
        padding: 1.5rem 1rem;
        margin: 0 1rem;
    }

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

    .calc-input-group input {
        font-size: 1rem;
        padding: 0.8rem;
    }

    .calc-results {
        gap: 0.8rem;
    }

    .calc-result {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
        padding: 0.8rem;
    }

    .calc-result.highlight {
        padding: 1rem;
    }

    .calc-label {
        font-size: 0.9rem;
    }

    .calc-value {
        font-size: 1.3rem;
    }

    .refund-note {
        margin-top: 1rem;
        padding: 0.8rem;
    }

    .refund-note p {
        font-size: 0.85rem;
    }

    .cta-content h2 {
        font-size: 1.8rem;
        padding: 0 1rem;
    }

    .cta-content p {
        font-size: 1rem;
        padding: 0 1rem;
    }

    .about-hero {
        padding: 3rem 0;
    }

    .about-hero h1 {
        font-size: 1.8rem;
        padding: 0 1rem;
    }

    .about-text {
        padding: 0 1rem;
    }

    .values-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .operation-item {
        padding: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .why-choose {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .container {
        padding: 0 15px;
    }
}

@media (max-width: 480px) {
    .nav-brand h2 {
        font-size: 1.2rem;
    }

    .hero {
        padding: 1.5rem 0;
    }

    .hero-title {
        font-size: 1.3rem;
        padding: 0 0.5rem;
    }

    .hero-subtitle {
        font-size: 0.85rem;
        padding: 0 0.5rem;
    }

    .refund-badge {
        font-size: 0.75rem;
        padding: 0.5rem 1rem;
    }

    .section {
        padding: 2rem 0;
    }

    .section-title {
        font-size: 1.4rem;
        padding: 0 0.5rem;
    }

    .step-card,
    .benefit-card,
    .testimonial-card,
    .value-card,
    .why-item,
    .operation-item {
        padding: 1.2rem;
        margin-bottom: 1rem;
    }

    .step-number {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }

    .benefit-icon,
    .value-icon {
        font-size: 2.5rem;
    }

    .btn-primary {
        padding: 0.8rem 1.8rem;
        font-size: 0.95rem;
    }

    .btn-large {
        padding: 1rem 2rem;
        font-size: 1rem;
    }

    .calculator {
        padding: 1.2rem 0.8rem;
        margin: 0 0.5rem;
    }

    .calc-value {
        font-size: 1.1rem;
    }

    .cta-content h2 {
        font-size: 1.5rem;
    }

    .cta-content p {
        font-size: 0.9rem;
    }

    .about-hero h1 {
        font-size: 1.5rem;
    }
}