/* Critical CSS - Above the fold content only */
:root {
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --secondary: #10b981;
    --white: #ffffff;
    --gray-700: #374151;
    --gray-900: #111827;
    --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.07);
    --transition-fast: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body { 
    font-family: 'Inter', -apple-system, sans-serif;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 50%, #e2e8f0 100%);
    color: var(--gray-700);
    line-height: 1.7;
    overflow-x: hidden;
}

.container { max-width: 1320px; margin: 0 auto; padding: 0 24px; }

/* Navbar - Critical */
.navbar {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    max-width: 95%;
    width: auto;
    border-radius: 100px;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(99, 102, 241, 0.1);
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    z-index: 1000;
    padding: 12px 24px;
    min-width: 300px;
    transition: var(--transition-fast);
}

.navbar .container {
    max-width: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: auto;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--gray-900);
    font-weight: 800;
    font-size: 1.2rem;
}

.logo-image {
    width: 44px;
    height: 44px;
    object-fit: contain;
}

/* Hero Section - Critical */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 120px 0 80px;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    z-index: 2;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: var(--gray-700);
    margin-bottom: 40px;
    line-height: 1.6;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-fast);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(99, 102, 241, 0.4);
}

/* Preloader - Critical */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    text-align: center;
}

.loader-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-top: 20px;
    letter-spacing: 2px;
}

/* Mobile Navigation */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: var(--transition-fast);
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--gray-700);
    margin: 3px 0;
    transition: var(--transition-fast);
    border-radius: 2px;
}

@media (max-width: 1024px) {
    .nav-menu { display: none; }
    .hamburger { display: flex; }
}

@media (max-width: 768px) {
    .navbar {
        top: 10px;
        padding: 10px 20px;
        min-width: 280px;
    }
    
    .hero-section {
        padding: 100px 0 60px;
    }
    
    .container {
        padding: 0 16px;
    }
}