/* 
 * components-responsive.css - Mobile-First Component Styles
 * Navigation, Footer, and Reusable UI Components
 */

/* ================================
   Navigation - Mobile First
   ================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: var(--z-navbar);
    transition: all var(--transition-slow);
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Logo Section - FIXED */
.nav-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    z-index: calc(var(--z-navbar) + 1);
}

/* Logo Link Styles */
.nav-logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: opacity var(--transition-base);
}

.nav-logo a:hover {
    opacity: 0.8;
}

/* Logo Image */
.logo-img {
    height: 32px;
    width: auto;
    display: block;
}

/* Logo Tagline - Not a link */
.logo-tagline {
    font-size: 0.5625rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    line-height: 1;
    white-space: nowrap;
    text-decoration: none;
    cursor: default;
}

/* Desktop Menu - Hidden on Mobile */
.desktop-menu {
    display: none;
}

.desktop-cta {
    display: none;
}

/* Mobile CTA - Visible on Mobile */
.mobile-cta {
    display: flex;
    gap: var(--space-xs);
    align-items: center;
}

.mobile-cta .btn-small {
    padding: var(--space-xs) var(--space-sm);
    min-height: 36px;
    font-size: var(--font-size-sm);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: calc(var(--z-navbar) + 1);
    -webkit-tap-highlight-color: transparent;
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: all var(--transition-base);
    border-radius: 2px;
}

/* Active state for hamburger */
.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    overflow-y: auto;
    z-index: calc(var(--z-navbar) - 1);
}

.mobile-menu[aria-hidden="false"] {
    transform: translateX(0);
}

.mobile-nav-list {
    list-style: none;
    padding: var(--space-xl) var(--space-lg);
}

.mobile-nav-link {
    display: block;
    padding: var(--space-md) 0;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    text-decoration: none;
    border-bottom: 1px solid var(--border-light);
    transition: all var(--transition-base);
}

.mobile-nav-link:hover,
.mobile-nav-link:focus {
    color: var(--accent-teal);
    padding-left: var(--space-sm);
}

.mobile-nav-cta {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

/* ================================
   Section Components
   ================================ */
.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-label {
    display: inline-block;
    background: var(--white);
    color: var(--primary);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-md); /* 8px rounded corners */
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--space-md);
    border: 1px solid var(--border-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
    letter-spacing: -0.025em;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ================================
   Footer - Mobile First
   ================================ */
.footer {
    background: var(--gray-50);
    border-top: 1px solid var(--border-light);
    padding: var(--space-2xl) 0 var(--space-xl);
}

.footer-grid {
    display: grid;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand {
    text-align: center;
}

.footer-logo {
    display: flex;
    justify-content: center;
    margin-bottom: var(--space-md);
}

.footer-tagline {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--accent-teal);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

.footer-description {
    color: var(--text-muted);
    line-height: 1.6;
    font-size: var(--font-size-base);
    max-width: 400px;
    margin: 0 auto;
}

.footer-links {
    display: grid;
    gap: var(--space-xl);
    text-align: center;
}

.footer-column {
    padding: 0;
}

.footer-title {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-list {
    list-style: none;
}

.footer-link {
    color: var(--text-muted);
    text-decoration: none;
    display: block;
    padding: var(--space-xs) 0;
    font-size: var(--font-size-base);
    transition: color var(--transition-base);
}

.footer-link:hover,
.footer-link:focus {
    color: var(--accent-teal);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-light);
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* ================================
   Loading States
   ================================ */
.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 24px;
    height: 24px;
    border: 2px solid var(--gray-300);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Skeleton Loading */
.skeleton {
    position: relative;
    overflow: hidden;
    background: var(--gray-200);
    border-radius: var(--radius-md);
}

.skeleton::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.4) 50%,
        transparent 100%
    );
    animation: skeleton-loading 1.5s ease-in-out infinite;
}

@keyframes skeleton-loading {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

/* ================================
   Tablet Styles (768px and up)
   ================================ */
@media (min-width: 768px) {
    .navbar {
        height: 70px;
    }
    
    .logo-img {
        height: 36px;
    }
    
    .logo-tagline {
        font-size: 0.625rem;
    }
    
    /* Hide mobile CTA on tablets and up */
    .mobile-cta {
        display: none;
    }
    
    /* Show desktop menu on tablets in landscape */
    @media (orientation: landscape) {
        .desktop-menu {
            display: flex;
            align-items: center;
            gap: var(--space-xl);
            list-style: none;
            margin: 0 var(--space-2xl);
        }
        
        .desktop-cta {
            display: flex;
            align-items: center;
            gap: var(--space-md);
        }
        
        .nav-link {
            padding: var(--space-xs) 0;
            color: var(--text-secondary);
            text-decoration: none;
            font-size: var(--font-size-sm);
            font-weight: 500;
            transition: all var(--transition-base);
            position: relative;
        }
        
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-teal);
            transition: width var(--transition-slow);
        }
        
        .nav-link:hover::after {
            width: 100%;
        }
        
        .mobile-menu-toggle {
            display: none;
        }
    }
    
    /* Footer Grid for Tablet */
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: left;
    }
    
    .footer-brand {
        text-align: left;
        max-width: 400px;
    }
    
    .footer-logo {
        justify-content: flex-start;
    }
    
    .footer-description {
        margin: 0;
    }
    
    .footer-links {
        grid-template-columns: repeat(3, 1fr);
        text-align: left;
    }
}

/* ================================
   Desktop Styles (1024px and up)
   ================================ */
@media (min-width: 1024px) {
    .navbar {
        height: 80px;
    }
    
    .nav-container {
        padding: 0 var(--space-2xl);
    }
    
    .logo-img {
        height: 40px;
    }
    
    .logo-tagline {
        font-size: 0.625rem;
    }
    
    /* Desktop Navigation */
    .desktop-menu {
        display: flex;
        align-items: center;
        gap: 2.5rem;
        list-style: none;
        margin: 0 var(--space-2xl);
    }
    
    .nav-link {
        padding: var(--space-sm) 0;
        color: var(--text-secondary);
        text-decoration: none;
        font-size: var(--font-size-base);
        font-weight: 500;
        transition: all var(--transition-base);
        position: relative;
    }
    
    .nav-link::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        width: 0;
        height: 2px;
        background: var(--accent-teal);
        transition: width var(--transition-slow);
    }
    
    .nav-link:hover {
        color: var(--text-primary);
    }
    
    .nav-link:hover::after {
        width: 100%;
    }
    
    /* Desktop CTA */
    .desktop-cta {
        display: flex;
        align-items: center;
        gap: var(--space-md);
    }
    
    /* Hide Mobile Menu Elements */
    .mobile-menu-toggle,
    .mobile-menu {
        display: none;
    }
    
    /* Footer Desktop Layout */
    .footer-grid {
        grid-template-columns: 2fr 3fr;
        gap: var(--space-3xl);
    }
    
    .footer-links {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-xl);
    }
    
    /* Section Headers */
    .section-header {
        margin-bottom: var(--space-3xl);
    }
    
    .section-label {
        font-size: var(--font-size-base);
        padding: var(--space-sm) var(--space-lg);
    }
    
    .section-title {
        font-size: var(--font-size-6xl);
    }
    
    .section-subtitle {
        font-size: var(--font-size-xl);
    }
}

/* ================================
   Extra Large Desktop (1280px+)
   ================================ */
@media (min-width: 1280px) {
    .nav-container {
        padding: 0 var(--space-3xl);
    }
}

/* ================================
   Accessibility Enhancements
   ================================ */
@media (prefers-reduced-motion: reduce) {
    .mobile-menu,
    .hamburger-line {
        transition: none;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .navbar {
        border-bottom: 2px solid var(--text-primary);
    }
    
    .btn {
        border-width: 2px;
    }
    
    .card {
        border-width: 2px;
    }
}