/**
 * Critical CSS - Inline in <head> for faster LCP
 * Contains only above-the-fold styles
 */

:root {
    --color-primary: #0077B6;
    --color-dark: #1a1a2e;
    --color-white: #ffffff;
    --color-light: #f8fafc;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
    font-family: var(--font-family);
    color: var(--color-dark);
    background: var(--color-white);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navigation - Critical for LCP */
.nav-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    z-index: 1000;
    display: flex;
    align-items: center;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-primary);
    text-decoration: none;
    letter-spacing: 0.1em;
}

/* Hero - Critical for LCP */
.hero {
    min-height: 70vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #0077B6 0%, #005a8c 100%);
    color: var(--color-white);
    text-align: center;
    padding: 120px 0 80px;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    max-width: 900px;
    margin: 0 auto 1rem;
}

.hero-text {
    font-size: 1.125rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 2rem;
}

/* Buttons - Critical */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 0.75rem;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-white);
    color: var(--color-white);
}

.btn-white {
    background: var(--color-white);
    color: var(--color-primary);
}

/* Prevent layout shift */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Skeleton loading */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton 1.5s infinite;
}

@keyframes skeleton {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}
