* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #93c5fd;
    --dark-blue: #1e3a5f;
    --white: #ffffff;
    --light-gray: #f3f4f6;
    --gray: #e5e7eb;
    --text-dark: #374151;
    --text-gray: #6b7280;
    --success: #10b981;
    --warning: #f59e0b;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--white);
}

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

/* ============ NAVBAR ============ */
.navbar {
    background: var(--white);
    border-bottom: 2px solid var(--primary);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
}

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

.nav-menu {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.navbar-actions {
    display: flex;
    gap: 15px;
    align-items: center;
}

.currency-select,
.language-select {
    padding: 8px 12px;
    border: 1px solid var(--gray);
    border-radius: 5px;
    background: var(--white);
    cursor: pointer;
    font-size: 14px;
}

.btn-signup {
    background: var(--primary);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s;
}

.btn-signup:hover {
    background: var(--primary-dark);
}

/* ============ HERO SECTION ============ */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 80px 20px;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
}

.social-icons-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    opacity: 0.08;
    font-size: 120px;
    flex-wrap: wrap;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

/* ============ BUTTONS ============ */
.btn-primary {
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 12px 30px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.3);
}

.btn-lg {
    padding: 15px 40px;
    font-size: 18px;
}

.btn-secondary {
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

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

.btn-block {
    width: 100%;
    margin-top: 20px;
}

/* ============ STATISTICS SECTION ============ */
.statistics {
    padding: 60px 20px;
    background: var(--light-gray);
}

.section-title {
    font-size: 36px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 50px;
    color: var(--dark-blue);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.stat-card {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.15);
}

.stat-icon {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: 15px;
}

.stat-number {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 10px;
}

.stat-text {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    color: var(--text-gray);
    font-size: 14px;
}

/* ============ SERVICES SECTION ============ */
.services {
    padding: 60px 20px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 25px;
}

.service-card {
    background: var(--white);
    border: 2px solid var(--light-gray);
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    transition: all 0.3s;
    cursor: pointer;
}

.service-card:hover {
    border-color: var(--primary);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.15);
    transform: translateY(-5px);
}

.service-icon {
    font-size: 50px;
    margin-bottom: 15px;
    display: inline-block;
}

.service-card h3 {
    color: var(--dark-blue);
    margin-bottom: 10px;
    font-size: 18px;
}

.service-card p {
    color: var(--text-gray);
    font-size: 14px;
    margin-bottom: 15px;
}

.service-price {
    color: var(--primary);
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 15px;
}

.service-range {
    font-size: 12px;
    color: var(--text-gray);
    margin-bottom: 15px;
}

.service-card button {
    width: 100%;
    padding: 10px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s;
}

.service-card button:hover {
    background: var(--primary-dark);
}

/* ============ CALCULATOR SECTION ============ */
.calculator {
    padding: 60px 20px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
}

.calculator .section-title {
    color: var(--white);
}

.calculator-wrapper {
    max-width: 600px;
    margin: 0 auto;
}

.calculator-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.calculator-form {
    padding: 30px;
    background: var(--white);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-weight: 600;
}

.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--gray);
    border-radius: 5px;
    font-size: 14px;
}

.quantity-input {
    display: flex;
    align-items: center;
    gap: 10px;
}

.qty-btn {
    background: var(--light-gray);
    border: 1px solid var(--gray);
    width: 40px;
    height: 40px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    color: var(--text-dark);
    transition: background 0.3s;
}

.qty-btn:hover {
    background: var(--gray);
}

.quantity-input input {
    flex: 1;
    padding: 10px 15px;
    border: 1px solid var(--gray);
    border-radius: 5px;
    font-size: 14px;
}

.calculator-summary {
    padding: 30px;
    background: var(--light-gray);
    border-top: 1px solid var(--gray);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.summary-row.total {
    font-size: 18px;
    font-weight: 800;
    color: var(--dark-blue);
}

.price {
    color: var(--primary);
    font-weight: 600;
}

.price.discount {
    color: var(--success);
}

.summary-divider {
    height: 1px;
    background: var(--gray);
    margin: 15px 0;
}

/* ============ HOW IT WORKS ============ */
.how-it-works {
    padding: 60px 20px;
    background: var(--light-gray);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.step-card {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s;
}

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

.step-number {
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 800;
    margin: 0 auto 15px;
}

.step-card h3 {
    color: var(--dark-blue);
    margin-bottom: 10px;
}

.step-card p {
    color: var(--text-gray);
}

/* ============ TESTIMONIALS SECTION ============ */
.testimonials {
    padding: 60px 20px;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: var(--white);
    border: 1px solid var(--gray);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
}

.testimonial-card:hover {
    border-color: var(--primary);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.15);
}

.stars {
    color: var(--warning);
    font-size: 16px;
    margin-bottom: 15px;
}

.testimonial-text {
    color: var(--text-dark);
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 20px;
}

.author-name {
    color: var(--dark-blue);
    font-weight: 600;
    margin-bottom: 3px;
}

.author-title {
    color: var(--text-gray);
    font-size: 12px;
}

/* ============ FAQ SECTION ============ */
.faq {
    padding: 60px 20px;
    background: var(--light-gray);
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    gap: 20px;
}

.faq-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.faq-header {
    padding: 20px;
    background: var(--light-gray);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--dark-blue);
    transition: background 0.3s;
}

.faq-header:hover {
    background: var(--gray);
}

.faq-header i {
    color: var(--primary);
    transition: transform 0.3s;
}

.faq-card.active .faq-header i {
    transform: rotate(180deg);
}

.faq-body {
    padding: 20px;
    display: none;
    background: var(--white);
    color: var(--text-gray);
}

.faq-card.active .faq-body {
    display: block;
}

/* ============ CONTACT SECTION ============ */
.contact {
    padding: 60px 20px;
}

.contact-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.contact-card {
    background: var(--white);
    border: 2px solid var(--light-gray);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s;
}

.contact-card:hover {
    border-color: var(--primary);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.15);
}

.contact-card i {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: 15px;
}

.contact-card h3 {
    color: var(--dark-blue);
    margin-bottom: 10px;
}

.contact-card a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.contact-card a:hover {
    text-decoration: underline;
}

/* ============ FOOTER ============ */
.footer {
    background: var(--dark-blue);
    color: var(--white);
    padding: 50px 20px 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-section h4 {
    margin-bottom: 15px;
    font-size: 16px;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--white);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
}

.social-links a:hover {
    background: var(--primary);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 20px;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 13px;
}

/* ============ FLOATING BUTTONS ============ */
.whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25d366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    text-decoration: none;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    transition: all 0.3s;
    z-index: 99;
}

.whatsapp-btn:hover {
    background: #1ebd56;
    transform: scale(1.1);
}

.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    transition: all 0.3s;
    z-index: 99;
}

.back-to-top.show {
    display: flex;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-5px);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
    .navbar-content {
        flex-wrap: wrap;
        gap: 20px;
    }

    .nav-menu {
        flex-wrap: wrap;
        gap: 15px;
        order: 3;
        width: 100%;
    }

    .hero-title {
        font-size: 32px;
    }

    .section-title {
        font-size: 28px;
    }

    .stats-grid,
    .services-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .hero-subtitle {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 24px;
    }

    .section-title {
        font-size: 24px;
    }

    .navbar-actions {
        flex-direction: column;
        width: 100%;
    }
}