:root {
    --primary-color: #00B4D8;
    --primary-dark: #0096B4;
    --secondary-color: #90E0EF;
    --secondary-light: #CAF0F8;
    --white: #FFFFFF;
    --text-dark: #2B2D42;
    --text-light: #6C757D;
    --bg-light: #F8F9FA;
    --success: #28A745;
    --error: #DC3545;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    --radius: 8px;
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Open Sans', sans-serif;
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); color: var(--text-dark); line-height: 1.6; background-color: var(--white); }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color 0.3s ease; }
ul { list-style: none; }

/* Typography */
h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--text-dark); line-height: 1.2; margin-bottom: 1rem; }
h1 { font-size: 2.5rem; font-weight: 700; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
.text-center { text-align: center; }
.mb-4 { margin-bottom: 1.5rem; }
.mt-4 { margin-top: 1.5rem; }

/* Layout */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 60px 0; }
.bg-light { background-color: var(--bg-light); }

/* Header & Nav */
.header { background: var(--white); box-shadow: var(--shadow); position: sticky; top: 0; z-index: 1000; padding: 15px 0; }
.header__container { display: flex; justify-content: space-between; align-items: center; }
.mobile-menu-btn { display: block; background: none; border: none; cursor: pointer; padding: 10px; }
.hamburger { display: block; width: 25px; height: 3px; background: var(--text-dark); position: relative; transition: all 0.3s; }
.hamburger::before, .hamburger::after { content: ''; position: absolute; width: 25px; height: 3px; background: var(--text-dark); transition: all 0.3s; }
.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }
.nav { display: none; position: absolute; top: 100%; left: 0; width: 100%; background: var(--white); box-shadow: var(--shadow); padding: 20px; }
.nav.active { display: block; }
.nav__list { display: flex; flex-direction: column; gap: 15px; text-align: center; }
.nav__link { font-weight: 600; color: var(--text-dark); }
.nav__link.active, .nav__link:hover { color: var(--primary-color); }
.desktop-only { display: none; }

/* Buttons */
.btn { display: inline-block; padding: 12px 24px; border-radius: var(--radius); font-weight: 600; text-align: center; cursor: pointer; border: 2px solid transparent; transition: all 0.3s ease; }
.btn--primary { background-color: var(--primary-color); color: var(--white); }
.btn--primary:hover { background-color: var(--primary-dark); }
.btn--secondary { background-color: var(--white); color: var(--primary-color); border-color: var(--primary-color); }
.btn--secondary:hover { background-color: var(--secondary-light); }
.btn--full { width: 100%; }

/* Hero */
.hero { background-size: cover; background-position: center; color: var(--white); text-align: center; padding: 100px 0; }
.hero--small { padding: 60px 0; }
.hero__content h1 { color: var(--white); margin-bottom: 1rem; }
.hero__buttons { display: flex; gap: 15px; justify-content: center; margin-top: 2rem; flex-wrap: wrap; }

/* Features & Services */
.features__grid, .services-grid, .steps-grid, .testimonials-grid { display: grid; gap: 30px; margin-top: 40px; }
.feature-card, .service-card, .step, .testimonial { background: var(--white); padding: 30px; border-radius: var(--radius); box-shadow: var(--shadow); text-align: center; }
.feature-card__icon, .service-card__icon { width: 60px; height: 60px; margin: 0 auto 15px; }
.link-arrow { color: var(--primary-color); font-weight: 600; margin-top: 15px; display: inline-block; }
.step { position: relative; }
.step__number { position: absolute; top: -15px; left: 50%; transform: translateX(-50%); background: var(--primary-color); color: var(--white); width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; }
.step img { border-radius: var(--radius); margin-bottom: 15px; width: 100%; height: 200px; object-fit: cover; }

/* Testimonials */
.testimonial { text-align: left; }
.testimonial__avatar { width: 60px; height: 60px; border-radius: 50%; object-fit: cover; margin-bottom: 15px; }
.testimonial p { font-style: italic; color: var(--text-light); margin-bottom: 15px; }
.testimonial cite { font-weight: 600; color: var(--text-dark); font-style: normal; }

/* CTA */
.cta { background-color: var(--primary-color); color: var(--white); text-align: center; }
.cta h2 { color: var(--white); }
.cta .btn--primary { background-color: var(--white); color: var(--primary-color); }
.cta .btn--primary:hover { background-color: var(--secondary-light); }

/* Tables */
.table-responsive { overflow-x: auto; }
.pricing-table { width: 100%; border-collapse: collapse; margin-top: 20px; background: var(--white); box-shadow: var(--shadow); }
.pricing-table th, .pricing-table td { padding: 15px; text-align: left; border-bottom: 1px solid var(--secondary-light); }
.pricing-table th { background-color: var(--primary-color); color: var(--white); font-weight: 600; }

/* Forms */
.contact__grid { display: grid; gap: 40px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 600; color: var(--text-dark); }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px; border: 1px solid #ddd; border-radius: var(--radius); font-family: inherit; font-size: 1rem; transition: border-color 0.3s; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 3px var(--secondary-light); }
.check-list li { margin-bottom: 10px; padding-left: 25px; position: relative; }
.check-list li::before { content: '✓'; color: var(--success); position: absolute; left: 0; font-weight: bold; }

/* Footer */
.footer { background-color: var(--text-dark); color: var(--white); padding: 60px 0 20px; }
.footer__grid { display: grid; gap: 40px; margin-bottom: 40px; }
.footer__logo { margin-bottom: 15px }
.footer__links li { margin-bottom: 10px; }
.footer__links a:hover { color: var(--primary-color); }
.footer__col address { font-style: normal; line-height: 1.8; }
.footer__col a { color: var(--secondary-color); }
.footer__bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; display: flex; flex-direction: column; gap: 15px; text-align: center; color: var(--text-light); font-size: 0.9rem; }
.footer__legal { display: flex; gap: 20px; justify-content: center; }
.footer__legal a:hover { color: var(--white); }

/* Legal Pages */
.legal-content { max-width: 800px; }
.legal-content h2 { margin-top: 2rem; font-size: 1.5rem; color: var(--primary-color); }
.legal-content ul { margin-left: 20px; list-style: disc; margin-bottom: 1rem; }

/* Desktop Responsive */
@media (min-width: 768px) {
    h1 { font-size: 3rem; }
    .mobile-menu-btn { display: none; }
    .mobile-only { display: none; }
    .desktop-only { display: inline-block; }
    .nav { display: block; position: static; width: auto; background: transparent; box-shadow: none; padding: 0; }
    .nav__list { flex-direction: row; gap: 30px; }
    .features__grid { grid-template-columns: repeat(3, 1fr); }
    .services-grid, .steps-grid, .testimonials-grid { grid-template-columns: repeat(3, 1fr); }
    .contact__grid { grid-template-columns: 1fr 1fr; }
    .footer__grid { grid-template-columns: 2fr 1fr 1fr; }
    .footer__bottom { flex-direction: row; justify-content: space-between; text-align: left; }
    .about__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
    .services-detail__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
}