critical.css

/* Critical Above-the-Fold CSS - Inlined for Performance */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background: #ffffff;
    overflow-x: hidden;
}

/* Skip Links for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #000;
    color: #fff;
    padding: 8px;
    text-decoration: none;
    z-index: 10000;
    border-radius: 0 0 4px 4px;
}

.skip-link:focus {
    top: 0;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Container - Mobile-First */
.container {
    width: 100%;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 576px) {
    .container {
        max-width: 540px;
        padding: 0 1.5rem;
    }
}

@media (min-width: 768px) {
    .container {
        max-width: 720px;
        padding: 0 2rem;
    }
}

@media (min-width: 992px) {
    .container {
        max-width: 960px;
    }
}

@media (min-width: 1200px) {
    .container {
        max-width: 1200px;
    }
}

/* Navigation - Critical Styles */
nav {
    background: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    position: relative;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #34495e;
    text-decoration: none;
}

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
}

.hamburger-line {
    width: 100%;
    height: 3px;
    background: #2c3e50;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Navigation menu - initially hidden on mobile */
.nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #ffffff;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    list-style: none;
    padding: 1rem 0;
    margin: 0;
    border-radius: 0 0 8px 8px;
}

.nav-menu a {
    color: #2c3e50;
    text-decoration: none;
    font-weight: 500;
    padding: 1rem 2rem;
    min-height: 44px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #f8f9fa;
}

/* Desktop navigation */
@media (min-width: 768px) {
    .mobile-menu-toggle {
        display: none;
    }
    
    .nav-menu {
        display: flex !important;
        position: static;
        flex-direction: row;
        gap: 2rem;
        background: none;
        box-shadow: none;
        padding: 0;
        border-radius: 0;
    }
    
    .nav-menu a {
        padding: 0.5rem 0;
        background: none !important;
        border-bottom: none;
    }
}

/* Hero Section - Critical Above-the-Fold */
.hero {
    padding: 2rem 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.hero-content {
    width: 100%;
    margin: 0 auto;
    padding: 0 1rem;
    text-align: center;
}

.hero h1 {
    font-size: 2rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: #6c757d;
    margin-bottom: 1rem;
    font-weight: 400;
}

.hero-description {
    font-size: 1rem;
    color: #495057;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.cta-section {
    margin-top: 1.5rem;
}

.cta-button {
    display: inline-block;
    background: #2c3e50;
    color: white;
    padding: 1rem 2rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 5px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(44, 62, 80, 0.2);
    min-height: 44px;
    min-width: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

/* Progressive enhancement for larger screens */
@media (min-width: 576px) {
    .hero {
        padding: 3rem 0;
        min-height: 65vh;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
    }
    
    .cta-button {
        display: inline-block;
        margin: 0;
    }
}

@media (min-width: 768px) {
    .hero {
        padding: 4rem 0;
        min-height: 70vh;
    }
    
    .hero-content {
        max-width: 1200px;
        padding: 0 2rem;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
        margin-bottom: 2.5rem;
        max-width: 800px;
        margin-left: auto;
        margin-right: auto;
        line-height: 1.7;
    }
    
    .cta-section {
        margin-top: 2rem;
    }
    
    .cta-button {
        padding: 1rem 2.5rem;
        font-size: 1.1rem;
    }
}

@media (min-width: 1200px) {
    .hero h1 {
        font-size: 3.5rem;
    }
}

/* Floating buttons removed */

.floating-button {
    position: absolute;
    min-width: 44px;
    min-height: 44px;
    height: 44px;
    padding: 0 12px;
    background: #ffffff;
    border: 2px solid #e9ecef;
    border-radius: 22px;
    font-size: 0.9rem;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    pointer-events: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    white-space: nowrap;
    color: #495057;
    text-decoration: none;
}

.btn-icon {
    font-size: 1.3em;
    flex-shrink: 0;
}

.btn-text {
    font-weight: 500;
    font-size: 0.8em;
    display: none; /* Hidden on mobile by default */
}

/* Progressive enhancement for floating buttons */
@media (min-width: 576px) {
    .btn-text {
        display: block;
        font-size: 0.85em;
    }
}

@media (min-width: 768px) {
    .floating-button {
        min-width: 60px;
        height: 60px;
        padding: 0 max(15px, 1em);
        border-radius: 30px;
        font-size: 1rem;
        gap: 8px;
    }
    
    .btn-text {
        font-size: 0.9em;
    }
}