/**
 * Foam Fighters - Main Stylesheet
 * Professional spray foam removal company website
 */

/* CSS Custom Properties */
:root {
    --ff-primary: #2c5aa0;
    --ff-primary-dark: #1e3d70;
    --ff-secondary: #ffc107;
    --ff-success: #198754;
    --ff-danger: #dc3545;
    --ff-warning: #fd7e14;
    --ff-info: #0dcaf0;
    --ff-light: #f8f9fa;
    --ff-dark: #212529;
    
    --ff-gradient-primary: linear-gradient(135deg, var(--ff-primary) 0%, var(--ff-primary-dark) 100%);
    --ff-gradient-hero: linear-gradient(135deg, var(--ff-primary) 0%, var(--ff-primary-dark) 70%, #1a2742 100%);
    
    --ff-shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --ff-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --ff-shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
    
    --ff-border-radius: 0.5rem;
    --ff-border-radius-lg: 1rem;
    
    --ff-transition: all 0.3s ease;
    --ff-transition-fast: all 0.15s ease;
}

/* Global Styles */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--ff-dark);
    overflow-x: hidden;
}

/* Image Optimization */
.hero-image-container {
    position: relative;
    overflow: hidden;
}

.hero-image-container img {
    transition: opacity 0.3s ease, transform 0.3s ease;
    will-change: transform;
}

.hero-image-container img:hover {
    transform: scale(1.02);
}

/* Loading placeholder for better UX */
.hero-image-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    z-index: 1;
}

.hero-image-container img[src] + ::before {
    display: none;
}

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

/* Utility Classes */
.bg-gradient-primary {
    background: var(--ff-gradient-primary) !important;
}

.bg-gradient-hero {
    background: var(--ff-gradient-hero) !important;
}

.text-primary {
    color: var(--ff-primary) !important;
}

.btn-primary {
    background-color: var(--ff-primary);
    border-color: var(--ff-primary);
    transition: var(--ff-transition);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--ff-primary-dark);
    border-color: var(--ff-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--ff-shadow);
}

.btn-warning {
    transition: var(--ff-transition);
}

.btn-warning:hover,
.btn-warning:focus {
    transform: translateY(-2px);
    box-shadow: var(--ff-shadow);
}

/* Skip to main content (accessibility) */
.sr-only-focusable:focus {
    position: absolute;
    top: 0;
    left: 0;
    width: auto;
    height: auto;
    padding: 0.5rem 1rem;
    background: var(--ff-warning);
    color: var(--ff-dark);
    text-decoration: none;
    z-index: 9999;
    border-radius: 0 0 var(--ff-border-radius) 0;
}

/* Navigation */
.navbar {
    background: var(--ff-gradient-primary) !important;
    box-shadow: var(--ff-shadow);
    transition: var(--ff-transition);
    padding: 1rem 0;
}

.navbar.scrolled {
    padding: 0.5rem 0;
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    transition: var(--ff-transition);
}

.navbar-brand:hover {
    transform: scale(1.05);
}

.navbar-nav .nav-link {
    font-weight: 500;
    margin: 0 0.25rem;
    padding: 0.5rem 1rem !important;
    border-radius: var(--ff-border-radius);
    transition: var(--ff-transition);
    position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.navbar-nav .nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
    font-weight: 600;
}

.dropdown-menu {
    border: none;
    box-shadow: var(--ff-shadow-lg);
    border-radius: var(--ff-border-radius);
    margin-top: 0.5rem;
    animation: fadeInUp 0.3s ease;
}

.dropdown-item {
    padding: 0.75rem 1.5rem;
    transition: var(--ff-transition);
}

.dropdown-item:hover {
    background-color: var(--ff-light);
    color: var(--ff-primary);
    transform: translateX(5px);
}

/* Hero Section */
.hero-section {
    background: var(--ff-gradient-hero);
    position: relative;
    overflow: hidden;
    padding-top: 80px; /* Account for fixed navbar */
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="80" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="60" r="1" fill="rgba(255,255,255,0.05)"/></svg>');
    animation: float 20s ease-in-out infinite;
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

.hero-benefits .fas {
    font-size: 1.1rem;
}

.hero-actions .btn {
    margin-bottom: 1rem;
}

.hero-image-container {
    position: relative;
}

.hero-image-container::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    background: var(--ff-gradient-primary);
    border-radius: var(--ff-border-radius-lg);
    z-index: -1;
    opacity: 0.3;
}

.hero-image-container img {
    border-radius: var(--ff-border-radius);
    transition: var(--ff-transition);
}

.hero-image-container:hover img {
    transform: scale(1.02);
}

/* Trust Indicators */
.trust-indicators {
    border-bottom: 1px solid #dee2e6;
}

.trust-item {
    transition: var(--ff-transition);
    padding: 1rem;
    border-radius: var(--ff-border-radius);
}

.trust-item:hover {
    background-color: white;
    box-shadow: var(--ff-shadow-sm);
    transform: translateY(-5px);
}

.trust-item i {
    transition: var(--ff-transition);
}

.trust-item:hover i {
    transform: scale(1.1);
    color: var(--ff-primary) !important;
}

/* Problem Section */
.problem-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.problem-card {
    transition: var(--ff-transition);
    position: relative;
    overflow: hidden;
}

.problem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.6s ease;
}

.problem-card:hover::before {
    left: 100%;
}

.problem-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--ff-shadow-lg);
}

.problem-card i {
    transition: var(--ff-transition);
}

.problem-card:hover i {
    transform: scale(1.1) rotate(5deg);
}

/* Quote Form Section */
.quote-form-container {
    position: relative;
    background: white !important;
}

.quote-form-container::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--ff-gradient-primary);
    border-radius: var(--ff-border-radius);
    z-index: -1;
}

.form-control,
.form-select {
    border: 2px solid #e9ecef;
    border-radius: var(--ff-border-radius);
    padding: 0.75rem 1rem;
    transition: var(--ff-transition);
    font-size: 0.95rem;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--ff-primary);
    box-shadow: 0 0 0 0.2rem rgba(44, 90, 160, 0.15);
    transform: translateY(-1px);
}

.form-label {
    font-weight: 600;
    color: var(--ff-dark);
    margin-bottom: 0.5rem;
}

.form-check-input:checked {
    background-color: var(--ff-primary);
    border-color: var(--ff-primary);
}

.invalid-feedback {
    display: block;
    font-size: 0.875rem;
    color: var(--ff-danger);
    margin-top: 0.25rem;
}

.form-control.is-invalid,
.form-select.is-invalid {
    border-color: var(--ff-danger);
    animation: shake 0.5s ease-in-out;
}

/* Process Section */
.process-step {
    transition: var(--ff-transition);
    padding: 2rem 1rem;
    border-radius: var(--ff-border-radius);
}

.process-step:hover {
    background-color: var(--ff-light);
    transform: translateY(-10px);
}

.step-number {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
    font-weight: bold;
    position: relative;
}

.step-number::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 100%;
    width: 50px;
    height: 2px;
    background: var(--ff-primary);
    opacity: 0.3;
    display: none;
}

@media (min-width: 992px) {
    .step-number::after {
        display: block;
    }
    
    .process-step:last-child .step-number::after {
        display: none;
    }
}

/* Footer */
footer {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%) !important;
}

footer a {
    transition: var(--ff-transition);
}

footer a:hover {
    color: var(--ff-secondary) !important;
    transform: translateX(3px);
}

.social-links a {
    display: inline-block;
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    transition: var(--ff-transition);
}

.social-links a:hover {
    background-color: var(--ff-primary);
    transform: translateY(-3px) scale(1.1);
}

.emergency-contact {
    animation: pulse 2s infinite;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-5px);
    }
    75% {
        transform: translateX(5px);
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 193, 7, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(255, 193, 7, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 193, 7, 0);
    }
}

@keyframes mobileDropdownSlide {
    from {
        opacity: 0;
        transform: translateY(-10px);
        max-height: 0;
    }
    to {
        opacity: 1;
        transform: translateY(0);
        max-height: 300px;
    }
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

/* Chat Widget Styles */
.chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    background: var(--ff-primary);
    color: white;
    border-radius: 50px;
    padding: 15px 20px;
    cursor: pointer;
    box-shadow: var(--ff-shadow-lg);
    transition: var(--ff-transition);
}

.chat-widget:hover {
    background: var(--ff-primary-dark);
    transform: scale(1.05);
}

.chat-widget i {
    margin-right: 8px;
}

/* Toast Styles */
.toast {
    background: white;
    border: none;
    border-radius: var(--ff-border-radius);
    box-shadow: var(--ff-shadow-lg);
    border-left: 4px solid var(--ff-primary);
}

.toast.toast-success {
    border-left-color: var(--ff-success);
}

.toast.toast-error {
    border-left-color: var(--ff-danger);
}

.toast.toast-warning {
    border-left-color: var(--ff-warning);
}

/* Responsive Design */
@media (max-width: 991.98px) {
    .navbar-nav {
        background: rgba(0, 0, 0, 0.1);
        border-radius: var(--ff-border-radius);
        margin-top: 1rem;
        padding: 1rem;
    }
    
    /* Mobile-specific navigation enhancements */
    .navbar-nav .nav-link {
        padding: 0.75rem 1rem !important;
        margin: 0.25rem 0;
        border-radius: var(--ff-border-radius);
        min-height: 44px; /* iOS touch target minimum */
        display: flex;
        align-items: center;
        text-decoration: none;
    }
    
    .navbar-nav .dropdown-toggle::after {
        margin-left: auto;
        transition: transform 0.3s ease;
    }
    
    .navbar-nav .dropdown.show .dropdown-toggle::after {
        transform: rotate(180deg);
    }
    
    /* Ensure dropdown parent has proper styling */
    .nav-item.dropdown.show {
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: var(--ff-border-radius);
    }
    
    /* Mobile dropdown menu improvements */
    .dropdown-menu {
        position: static !important;
        display: none;
        float: none;
        width: 100%;
        margin: 0.5rem 0 0 0;
        border: none;
        box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
        background: rgba(255, 255, 255, 0.95);
        border-radius: var(--ff-border-radius);
        backdrop-filter: blur(10px);
        animation: mobileDropdownSlide 0.3s ease;
    }
    
    .dropdown-menu.show {
        display: block;
    }
    
    .dropdown-item {
        padding: 0.75rem 1.5rem;
        min-height: 44px;
        display: flex;
        align-items: center;
        color: var(--ff-dark);
        font-weight: 500;
        border-radius: var(--ff-border-radius);
        margin: 0.25rem 0.5rem;
        transition: all 0.2s ease;
    }
    
    .dropdown-item:hover,
    .dropdown-item:focus,
    .dropdown-item:active {
        background-color: var(--ff-primary);
        color: white;
        transform: translateX(5px);
    }
    
    /* Mobile-friendly touch improvements */
    .navbar-toggler {
        padding: 0.5rem 0.75rem;
        font-size: 1.1rem;
        border: 2px solid rgba(255, 255, 255, 0.3);
        border-radius: var(--ff-border-radius);
        min-height: 44px;
        min-width: 44px;
    }
    
    .navbar-toggler:focus {
        box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.5);
    }
    
    .hero-section {
        text-align: center;
        padding-top: 100px;
    }
    
    .hero-actions .btn {
        display: block;
        width: 100%;
        margin-bottom: 1rem;
        min-height: 44px;
    }
    
    .problem-card {
        margin-bottom: 2rem;
    }
    
    .process-step {
        margin-bottom: 2rem;
    }
    
    .step-number::after {
        display: none !important;
    }
}

@media (max-width: 767.98px) {
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .lead {
        font-size: 1rem;
    }
    
    .trust-item {
        margin-bottom: 1rem;
    }
    
    .quote-form-container {
        margin: 0 -15px;
        border-radius: 0;
    }
    
    .chat-widget {
        bottom: 10px;
        right: 10px;
        padding: 12px 16px;
        font-size: 0.9rem;
    }
    
    /* Enhanced mobile touch targets */
    .btn {
        min-height: 44px;
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
    
    .form-control,
    .form-select {
        min-height: 44px;
        padding: 0.75rem 1rem;
        font-size: 1rem;
    }
    
    /* Mobile navigation improvements */
    .navbar-brand {
        font-size: 1.25rem;
        padding: 0.5rem 0;
    }
    
    .navbar-nav .nav-link {
        font-size: 1.1rem;
        font-weight: 600;
    }
    
    /* Better mobile dropdowns */
    .dropdown-item {
        font-size: 1rem;
        padding: 1rem 1.5rem;
    }
    
    /* Mobile-friendly cards */
    .card {
        margin-bottom: 1.5rem;
    }
    
    .card-body {
        padding: 1.5rem;
    }
}

@media (max-width: 575.98px) {
    .container {
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
    
    .hero-section {
        padding-top: 80px;
    }
    
    .hero-section .container {
        padding: 0 15px;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .chat-widget,
    .quote-form-section,
    footer {
        display: none !important;
    }
    
    .hero-section {
        padding-top: 0 !important;
        background: white !important;
        color: black !important;
    }
    
    .btn {
        display: none !important;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --ff-primary: #000080;
        --ff-primary-dark: #000060;
    }
    
    .btn {
        border: 2px solid currentColor;
    }
    
    .form-control,
    .form-select {
        border: 2px solid #000;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    ::before,
    ::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Focus Visible */
.btn:focus-visible,
.form-control:focus-visible,
.form-select:focus-visible,
.form-check-input:focus-visible {
    outline: 2px solid var(--ff-primary);
    outline-offset: 2px;
}

/* =================================
   LAZY LOADING STYLES
   ================================= */

/* Lazy Loading Images */
img[data-src] {
    opacity: 0;
    transition: opacity 0.3s ease;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading-shimmer 1.5s infinite;
}

img.loading {
    opacity: 0.5;
}

img.loaded {
    opacity: 1;
    animation: none;
    background: none;
}

img.error {
    opacity: 0.5;
    background: #f8f9fa;
}

/* Loading shimmer animation */
@keyframes loading-shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* Lazy Content Animation */
.lazy-content {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.lazy-content.lazy-loaded {
    opacity: 1;
    transform: translateY(0);
}

/* Performance Hints */
.will-change-transform {
    will-change: transform;
}

.will-change-opacity {
    will-change: opacity;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    img[data-src],
    .lazy-content {
        transition: none;
        animation: none;
    }
}

/* Gallery specific lazy loading */
.gallery-item img[data-src] {
    min-height: 200px;
}

.gallery-item img.loaded {
    transform: scale(1);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.gallery-item:hover img.loaded {
    transform: scale(1.05);
}