/* =========================================
   Theme CSS Variables & Core Styles (EU Patient Focus)
   ========================================= */
:root {
    /* Color Palette */
    --color-bg: #0b1120;           /* Extremely dark navy, professional and calm */
    --color-surface: rgba(30, 41, 59, 0.6); 
    --color-surface-hover: rgba(51, 65, 85, 0.8);
    --color-border: rgba(255, 255, 255, 0.08);
    
    --color-primary: #3b82f6;      /* Medical Blue */
    --color-primary-dark: #2563eb;
    --color-accent: #10b981;       /* Safe Green */
    
    --color-text-main: #f8fafc;
    --color-text-muted: #94a3b8;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #3b82f6, #60a5fa);
    --gradient-text: linear-gradient(to right, #60a5fa, #a78bfa);
    
    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Utilities */
    --max-width: 1140px;
    --nav-height: 80px;
    --transition: 0.3s ease;
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

* { box-sizing: border-box; }
body {
    background-color: var(--color-bg);
    color: var(--color-text-main);
    font-family: var(--font-main);
    line-height: 1.6;
    margin: 0;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }
.text-center { text-align: center; }

/* =========================================
   Buttons & Links
   ========================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}
.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
}
.btn-outline {
    border: 1px solid var(--color-border);
    color: var(--color-text-main);
}
.glass-btn {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.glass-btn:hover { background: rgba(255, 255, 255, 0.1); border-color: rgba(255,255,255,0.2); }
.btn-sm { padding: 8px 16px; font-size: 0.9rem; }

/* =========================================
   Header & Navigation
   ========================================= */
.site-header {
    position: fixed;
    top: 0; width: 100%;
    height: var(--nav-height);
    z-index: 1000;
    background: rgba(11, 17, 32, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    display: flex; align-items: center;
}
.header-container {
    display: flex; justify-content: space-between; align-items: center; width: 100%;
}
.logo-text {
    display: flex; align-items: center; gap: 10px;
    font-size: 1.4rem; font-weight: 700;
}
.logo-icon { width: 28px; height: 28px; color: var(--color-primary); }
ul#primary-menu {
    display: flex; gap: 30px; list-style: none; margin: 0; padding: 0;
}
ul#primary-menu a {
    color: var(--color-text-muted); font-weight: 500; font-size: 0.95rem;
}
ul#primary-menu a:hover { color: var(--color-text-main); }
.header-actions { display: flex; align-items: center; gap: 20px; }
.lang-switch { font-size: 0.85rem; color: var(--color-text-muted); cursor: pointer; }
.menu-toggle { display: none; background: none; border: none; color: #fff; cursor: pointer; }

/* =========================================
   Hero Section
   ========================================= */
.hero-section {
    padding: calc(var(--nav-height) + 60px) 0 80px;
    min-height: 80vh;
    display: flex; align-items: center; position: relative; overflow: hidden;
}
.hero-content {
    position: relative; z-index: 10;
    max-width: 800px; margin: 0 auto; text-align: center;
}
.badge {
    display: inline-block; padding: 6px 16px; border-radius: 20px;
    background: rgba(59, 130, 246, 0.15); color: #60a5fa;
    font-size: 0.85rem; font-weight: 600; margin-bottom: 24px; border: 1px solid rgba(59,130,246,0.3);
}
.hero-section h1 { font-size: clamp(2.5rem, 5vw, 4rem); line-height: 1.2; margin: 0 0 20px; }
.text-gradient {
    background: var(--gradient-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-section p { font-size: 1.2rem; color: var(--color-text-muted); margin-bottom: 40px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; margin-bottom: 60px; }
.trust-indicators {
    display: flex; justify-content: center; gap: 40px; padding-top: 40px; border-top: 1px solid var(--color-border);
}
.trust-item { display: flex; flex-direction: column; }
.trust-item strong { font-size: 1.5rem; color: var(--color-text-main); }
.trust-item span { font-size: 0.85rem; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 1px; }

/* Background Shapes */
.hero-bg-shapes { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.shape { position: absolute; border-radius: 50%; filter: blur(100px); opacity: 0.4; }
.shape-1 { top: -10%; left: -10%; width: 50vw; height: 50vw; background: rgba(59, 130, 246, 0.2); }
.shape-2 { bottom: -20%; right: -10%; width: 60vw; height: 60vw; background: rgba(139, 92, 246, 0.15); }

/* =========================================
   Services Section
   ========================================= */
.section-padding { padding: 100px 0; }
.section-heading { margin-bottom: 60px; }
.section-heading h2 { font-size: 2.5rem; margin: 0 0 16px; }
.section-heading p { color: var(--color-text-muted); font-size: 1.1rem; }
.grid { display: grid; gap: 30px; }
.services-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

.glass-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border-radius: 16px; padding: 40px 30px;
    transition: var(--transition);
}
.glass-card:hover { transform: translateY(-5px); border-color: rgba(96, 165, 250, 0.3); box-shadow: var(--shadow-glass); }
.icon-wrapper {
    width: 60px; height: 60px; border-radius: 12px; background: rgba(59, 130, 246, 0.1);
    color: var(--color-primary-light); display: flex; align-items: center; justify-content: center; margin-bottom: 24px;
}
.service-card h3 { font-size: 1.3rem; margin: 0 0 16px; }
.service-card p { color: var(--color-text-muted); margin: 0; font-size: 0.95rem; }

/* =========================================
   Why China Section
   ========================================= */
.bg-dark { background: #080c17; border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.split-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.content-side h2 { font-size: 2.5rem; margin-bottom: 40px; }
.benefit-list { list-style: none; padding: 0; margin: 0; }
.benefit-list li { margin-bottom: 30px; position: relative; padding-left: 20px; border-left: 2px solid var(--color-primary); }
.benefit-list strong { display: block; font-size: 1.15rem; margin-bottom: 8px; color: var(--color-text-main); }
.benefit-list p { color: var(--color-text-muted); margin: 0; font-size: 0.95rem; }
.img-placeholder { height: 400px; display: flex; align-items: center; justify-content: center; background: rgba(255,255,255,0.02); color: var(--color-text-muted); border-radius: 12px; }

/* =========================================
   Footer
   ========================================= */
.site-footer { padding: 80px 0 40px; background: #060913; border-top: 1px solid var(--color-border); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 60px; }
.footer-widget p { color: var(--color-text-muted); font-size: 0.9rem; }
.social-links { display: flex; gap: 16px; margin-top: 20px; }
.social-links a { color: var(--color-text-muted); } .social-links a:hover { color: var(--color-text-main); }
.widget-title { font-size: 1.1rem; margin-bottom: 20px; }
.footer-links, .nav-widget ul { list-style: none; padding: 0; margin: 0; }
.footer-links li, .nav-widget ul li { margin-bottom: 12px; }
.footer-links a, .nav-widget ul a { color: var(--color-text-muted); font-size: 0.9rem; }
.footer-links a:hover, .nav-widget ul a:hover { color: var(--color-primary-light); }
.site-info { padding-top: 30px; border-top: 1px solid rgba(255,255,255,0.05); }
.gdpr-notice { display: inline-block; background: rgba(16, 185, 129, 0.1); border: 1px solid rgba(16, 185, 129, 0.2); color: var(--color-accent); padding: 8px 16px; border-radius: 8px; font-size: 0.85rem; margin-bottom: 20px; }
.site-info p { color: var(--color-text-muted); font-size: 0.85rem; margin: 0; }

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 992px) {
    .split-layout { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 768px) {
    .menu-toggle { display: block; }
    ul#primary-menu, .header-actions { display: none; }
    .hero-actions { flex-direction: column; }
    .trust-indicators { flex-direction: column; gap: 20px; align-items: center; }
    .footer-grid { grid-template-columns: 1fr; }
}