/* ===== Google Fonts ===== */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@500;600;700;800&display=swap');

/* ===== CSS Variables ===== */
:root {
  --primary-teal: #0d9488;
  --primary-teal-dark: #0f766e;
  --primary-teal-light: #5eead4;
  --primary-blue: #0c4a6e;
  --primary-blue-dark: #082f49;
  --primary-blue-light: #38bdf8;
  --text-dark: #1e293b;
  --text-medium: #475569;
  --text-light: #94a3b8;
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: 'DM Sans', system-ui, sans-serif; color: var(--text-dark); line-height: 1.6; background: var(--bg-white); }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color 0.3s; }
h1,h2,h3,h4,h5,h6 { font-family: 'Plus Jakarta Sans', 'DM Sans', sans-serif; font-weight: 700; line-height: 1.2; color: var(--text-dark); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 640px) { .container { padding: 0 24px; } }

/* ===== Header ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.95); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color); transition: box-shadow 0.3s;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; }
.site-logo img { height: 48px; width: auto; }
.main-nav { display: none; }
.main-nav ul { list-style: none; display: flex; gap: 32px; align-items: center; }
.main-nav a { font-size: 14px; font-weight: 500; color: var(--text-medium); position: relative; }
.main-nav a:hover { color: var(--primary-teal); }
.main-nav a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--primary-teal); transition: width 0.3s; }
.main-nav a:hover::after { width: 100%; }
@media (min-width: 768px) { .main-nav { display: block; } }
.header-cta { display: none; }
@media (min-width: 768px) { .header-cta { display: inline-flex; } }

/* Mobile Menu */
.mobile-toggle { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; background: none; border: none; cursor: pointer; font-size: 24px; color: var(--text-dark); }
@media (min-width: 768px) { .mobile-toggle { display: none; } }
.mobile-menu { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--bg-white); border-bottom: 1px solid var(--border-color); box-shadow: var(--shadow-lg); padding: 16px; }
.mobile-menu.active { display: block; }
.mobile-menu ul { list-style: none; }
.mobile-menu a { display: block; padding: 12px 16px; font-size: 16px; color: var(--text-dark); border-radius: var(--radius); transition: background 0.3s; }
.mobile-menu a:hover { background: var(--bg-light); color: var(--primary-teal); }

/* ===== Buttons ===== */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; font-size: 15px; font-weight: 600; border-radius: var(--radius); border: none; cursor: pointer; transition: all 0.3s; text-decoration: none; font-family: inherit; }
.btn-primary { background: var(--primary-teal); color: white; box-shadow: var(--shadow-md); }
.btn-primary:hover { background: var(--primary-teal-dark); box-shadow: var(--shadow-lg); transform: translateY(-1px); }
.btn-outline { background: transparent; color: white; border: 2px solid rgba(255,255,255,0.3); }
.btn-outline:hover { background: rgba(255,255,255,0.1); }
.btn-outline-dark { background: transparent; color: var(--primary-teal); border: 2px solid var(--primary-teal); }
.btn-outline-dark:hover { background: var(--primary-teal); color: white; }

/* ===== Hero ===== */
.hero-section { position: relative; min-height: 90vh; display: flex; align-items: center; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.5); }
.hero-gradient { position: absolute; inset: 0; background: linear-gradient(to right, rgba(8,47,73,0.9), rgba(12,74,110,0.7), rgba(12,74,110,0.4)); }
.hero-bottom-gradient { position: absolute; bottom: 0; left: 0; right: 0; height: 96px; background: linear-gradient(to top, white, transparent); }
.hero-content { position: relative; z-index: 2; max-width: 640px; padding: 128px 0; }
.hero-badge { display: flex; align-items: center; gap: 8px; margin-bottom: 24px; }
.hero-badge svg { width: 20px; height: 20px; color: var(--primary-teal-light); }
.hero-badge span { color: var(--primary-teal-light); font-size: 14px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; text-shadow: 0 1px 4px rgba(0,0,0,0.4); }
.hero-title { font-size: 36px; color: white; margin-bottom: 16px; text-shadow: 0 2px 8px rgba(0,0,0,0.5); }
@media (min-width: 640px) { .hero-title { font-size: 48px; } }
@media (min-width: 768px) { .hero-title { font-size: 60px; } }
.hero-description { font-size: 18px; color: white; margin-bottom: 32px; line-height: 1.7; text-shadow: 0 1px 4px rgba(0,0,0,0.4); }
@media (min-width: 640px) { .hero-description { font-size: 20px; } }
.hero-description .highlight { color: var(--primary-teal-light); font-weight: 600; }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 16px; }

/* ===== Section Common ===== */
.section { padding: 80px 0; }
@media (min-width: 768px) { .section { padding: 100px 0; } }
.section-header { text-align: center; margin-bottom: 48px; }
.section-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(13,148,136,0.1); color: var(--primary-teal); padding: 6px 16px; border-radius: 9999px; font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; }
.section-title { font-size: 32px; margin-bottom: 16px; }
@media (min-width: 768px) { .section-title { font-size: 40px; } }
.section-subtitle { font-size: 18px; color: var(--text-medium); max-width: 640px; margin: 0 auto; }

/* ===== Why Us ===== */
.why-us-section { background: linear-gradient(135deg, var(--primary-blue-dark), var(--primary-blue)); color: white; padding: 80px 0; }
.why-us-section .section-badge { background: rgba(255,255,255,0.15); color: white; }
.why-us-section .section-title { color: white; }
.why-us-section .section-subtitle { color: rgba(255,255,255,0.8); }
.features-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 768px) { .features-grid { grid-template-columns: repeat(3, 1fr); } }
.feature-card { background: rgba(255,255,255,0.08); border-radius: var(--radius-xl); overflow: hidden; backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.1); transition: transform 0.3s, box-shadow 0.3s; }
.feature-card:hover { transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.2); }
.feature-card-img { position: relative; padding-top: 56.25%; overflow: hidden; }
.feature-card-img img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; }
.feature-card-icon { position: absolute; bottom: -20px; right: 16px; width: 48px; height: 48px; background: var(--primary-teal); border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center; color: white; box-shadow: var(--shadow-lg); }
.feature-card-body { padding: 28px 20px 20px; }
.feature-card-body h3 { color: white; font-size: 18px; margin-bottom: 8px; }
.feature-card-body p { color: rgba(255,255,255,0.7); font-size: 14px; line-height: 1.6; }

/* ===== Services ===== */
.services-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 640px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .services-grid { grid-template-columns: repeat(3, 1fr); } }
.service-card { background: var(--bg-white); border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); transition: transform 0.3s, box-shadow 0.3s; }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-xl); }
.service-card-img { position: relative; padding-top: 56.25%; overflow: hidden; }
.service-card-img img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.service-card:hover .service-card-img img { transform: scale(1.05); }
.service-card-body { padding: 20px; }
.service-card-body h3 { font-size: 18px; margin-bottom: 8px; }
.service-card-body p { font-size: 14px; color: var(--text-medium); line-height: 1.6; margin-bottom: 12px; }
.service-card-link { display: inline-flex; align-items: center; gap: 4px; font-size: 14px; font-weight: 600; color: var(--primary-teal); transition: gap 0.3s; }
.service-card-link:hover { gap: 8px; }

/* ===== Prevention ===== */
.prevention-grid { display: grid; grid-template-columns: 1fr; gap: 48px; align-items: center; }
@media (min-width: 768px) { .prevention-grid { grid-template-columns: 1fr 1fr; } }
.prevention-img-wrapper { position: relative; border-radius: var(--radius-xl); overflow: hidden; }
.prevention-img-wrapper img { width: 100%; border-radius: var(--radius-xl); }
.experience-badge { position: absolute; bottom: 16px; right: 16px; background: var(--primary-teal); color: white; padding: 16px 20px; border-radius: var(--radius-lg); text-align: center; box-shadow: var(--shadow-lg); }
.experience-badge .number { font-size: 36px; font-weight: 800; line-height: 1; }
.experience-badge .label { font-size: 12px; opacity: 0.9; }
.prevention-content h2 { font-size: 32px; margin-bottom: 20px; }
@media (min-width: 768px) { .prevention-content h2 { font-size: 36px; } }
.prevention-content > p { color: var(--text-medium); font-size: 16px; line-height: 1.7; margin-bottom: 24px; }
.prevention-list { list-style: none; margin-bottom: 32px; }
.prevention-list li { display: flex; align-items: flex-start; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border-color); }
.prevention-list li:last-child { border-bottom: none; }
.check-icon { width: 24px; height: 24px; min-width: 24px; background: rgba(13,148,136,0.1); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--primary-teal); margin-top: 2px; }
.check-icon svg { width: 14px; height: 14px; }
.prevention-list h4 { font-size: 15px; font-weight: 600; margin-bottom: 2px; }
.prevention-list p { font-size: 14px; color: var(--text-medium); }

/* ===== About ===== */
.about-grid { display: grid; grid-template-columns: 1fr; gap: 48px; align-items: center; }
@media (min-width: 768px) { .about-grid { grid-template-columns: 1fr 1fr; } }
.about-content h2 { font-size: 32px; margin-bottom: 20px; }
@media (min-width: 768px) { .about-content h2 { font-size: 36px; } }
.about-content > p { color: var(--text-medium); font-size: 16px; line-height: 1.7; margin-bottom: 16px; }
.about-values { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; margin-top: 32px; }
.about-value { text-align: center; padding: 16px; background: var(--bg-light); border-radius: var(--radius-lg); }
.about-value-icon { width: 40px; height: 40px; background: rgba(13,148,136,0.1); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--primary-teal); margin: 0 auto 8px; }
.about-value h4 { font-size: 14px; font-weight: 600; }
.about-img-wrapper { border-radius: var(--radius-xl); overflow: hidden; }
.about-img-wrapper img { width: 100%; border-radius: var(--radius-xl); }

/* ===== Contact ===== */
.contact-section { background: var(--bg-light); }
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 48px; }
@media (min-width: 768px) { .contact-grid { grid-template-columns: 1fr 1fr; } }
.contact-info-card { background: var(--bg-white); padding: 32px; border-radius: var(--radius-xl); box-shadow: var(--shadow-md); }
.contact-item { display: flex; gap: 16px; margin-bottom: 24px; }
.contact-item:last-child { margin-bottom: 0; }
.contact-item-icon { width: 44px; height: 44px; min-width: 44px; background: rgba(13,148,136,0.1); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; color: var(--primary-teal); }
.contact-item h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.contact-item p { font-size: 14px; color: var(--text-medium); }
.contact-img { margin-top: 24px; border-radius: var(--radius-lg); overflow: hidden; }
.contact-img img { width: 100%; height: 200px; object-fit: cover; }
.contact-form { background: var(--bg-white); padding: 32px; border-radius: var(--radius-xl); box-shadow: var(--shadow-md); }
.contact-form h3 { font-size: 24px; margin-bottom: 24px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; font-weight: 500; color: var(--text-dark); margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 10px 14px; font-size: 15px; border: 1px solid var(--border-color); border-radius: var(--radius); background: var(--bg-white); color: var(--text-dark); transition: border-color 0.3s, box-shadow 0.3s; font-family: inherit; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary-teal); box-shadow: 0 0 0 3px rgba(13,148,136,0.1); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-submit { width: 100%; padding: 14px; font-size: 16px; }
.form-message { margin-top: 12px; padding: 12px; border-radius: var(--radius); font-size: 14px; display: none; }
.form-message.success { background: rgba(13,148,136,0.1); color: var(--primary-teal-dark); display: block; }
.form-message.error { background: rgba(220,38,38,0.1); color: #991b1b; display: block; }

/* ===== Footer ===== */
.site-footer { background: var(--primary-blue-dark); color: white; padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 40px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.1); }
@media (min-width: 640px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1.5fr; } }
.footer-about .footer-logo img { height: 40px; width: auto; margin-bottom: 16px; }
.footer-about p { font-size: 14px; color: rgba(255,255,255,0.7); line-height: 1.7; }
.footer-col h4 { font-size: 15px; font-weight: 600; margin-bottom: 20px; color: white; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { font-size: 14px; color: rgba(255,255,255,0.7); transition: color 0.3s; }
.footer-col a:hover { color: var(--primary-teal-light); }
.footer-contact p { font-size: 14px; color: rgba(255,255,255,0.7); margin-bottom: 8px; }
.footer-bottom { padding: 24px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,0.5); }

/* ===== Animations ===== */
.fade-in-up { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in-up.visible { opacity: 1; transform: translateY(0); }