/* Enhanced Custom Styles for Responsive Design */

:root {
    --animation-delay-step: 100ms;
    --header-height: 64px;
    --header-height-mobile: 56px;
}

/* Base Styles */
* {
    -webkit-tap-highlight-color: transparent;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

@media (max-width: 640px) {
    html {
        font-size: 14px;
    }
}

@media (min-width: 1920px) {
    html {
        font-size: 18px;
    }
}

body {
    overflow-x: hidden;
    position: relative;
}

/* Navigation Link Styles */
.nav-link {
    position: relative;
    padding: 8px 0;
    display: inline-block;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #3498DB, #2980B9);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: #3498DB;
}

/* Header Responsive */
#header {
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
}

@media (max-width: 1024px) {
    #header {
        height: var(--header-height-mobile);
    }
}

#header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* Animation Delay Classes */
.animation-delay-200 {
    animation-delay: 200ms;
}

.animation-delay-400 {
    animation-delay: 400ms;
}

.animation-delay-600 {
    animation-delay: 600ms;
}

/* Client Slider */
.client-slider {
    overflow: hidden;
    position: relative;
    padding: 20px 0;
    -webkit-overflow-scrolling: touch;
}

.client-slider .flex {
    display: flex;
    animation: slide 40s linear infinite;
    width: max-content;
}

.client-slider-slow .flex {
    animation: slide 60s linear infinite;
}

@media (max-width: 768px) {
    .client-slider .flex {
        animation: slide 30s linear infinite;
    }
    
    .client-slider-slow .flex {
        animation: slide 40s linear infinite;
    }
}

.client-slider .flex:hover {
    animation-play-state: paused;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #3498DB;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #2980B9;
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: #3498DB #f1f1f1;
}

/* Form Focus Styles */
input:focus, textarea:focus, select:focus {
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
    outline: none;
}

/* Form Error States */
.error {
    border-color: #ef4444 !important;
}

.error-message {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    animation: fadeIn 0.3s ease;
}

.success {
    border-color: #10b981 !important;
}

/* Container Max Width Adjustments */
.container {
    max-width: 100%;
    margin: 0 auto;
}

@media (min-width: 640px) {
    .container {
        max-width: 640px;
    }
}

@media (min-width: 768px) {
    .container {
        max-width: 768px;
    }
}

@media (min-width: 1024px) {
    .container {
        max-width: 1024px;
    }
}

@media (min-width: 1280px) {
    .container {
        max-width: 1280px;
    }
}

@media (min-width: 1536px) {
    .container {
        max-width: 1536px;
    }
}

@media (min-width: 1920px) {
    .container {
        max-width: 1800px;
    }
}

/* Responsive Improvements */
@media (max-width: 768px) {
    /* Hero Section Mobile Fix */
    #home {
        padding-top: calc(var(--header-height-mobile) + 2rem);
        min-height: calc(100vh - var(--header-height-mobile));
    }
    
    .hero h1 {
        line-height: 1.2;
    }
    
    .hero p {
        line-height: 1.5;
    }
    
    /* Touch-friendly spacing */
    button, a {
        min-height: 44px;
        min-width: 44px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    /* Tablet Specific Styles */
    #home {
        padding-top: calc(var(--header-height-mobile) + 3rem);
    }
}

@media (min-width: 1025px) {
    #home {
        padding-top: calc(var(--header-height) + 4rem);
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

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

/* Image Loading Animation */
img {
    transition: opacity 0.3s ease;
    max-width: 100%;
    height: auto;
}

img[data-src] {
    opacity: 0;
}

img.loaded {
    opacity: 1;
}

/* Lazy Loading Blur Effect */
img.lazy {
    filter: blur(5px);
    transition: filter 0.3s ease;
}

img.lazy.loaded {
    filter: blur(0);
}

/* Custom Animations */
@keyframes slide {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

.animate-pulse {
    animation: pulse 2s infinite;
}

/* Back to Top Button Transition */
#scroll-top {
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

#scroll-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Mobile Menu Animation */
#mobile-menu {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Section Spacing */
section {
    scroll-margin-top: calc(var(--header-height) + 1rem);
}

@media (max-width: 1024px) {
    section {
        scroll-margin-top: calc(var(--header-height-mobile) + 1rem);
    }
}

/* Custom Button Styles */
.btn-gradient {
    background: linear-gradient(135deg, #3498DB, #2980B9);
    transition: all 0.3s ease;
}

.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(52, 152, 219, 0.3);
}

.btn-gradient:active {
    transform: translateY(0);
}

/* Card Hover Effects */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Hero Section Background Overlay */
.hero-overlay {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.5));
}

/* Service Card Fixed Height */
.service-card {
    display: flex;
    flex-direction: column;
}

.service-image {
    flex-shrink: 0;
}

.service-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Product Card */
.product-card {
    display: flex;
    flex-direction: column;
}

/* Partner Logo Grid */
.partners-grid .bg-white {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.partners-grid .bg-white:hover {
    transform: translateY(-4px);
}

/* Text Truncation Classes */
.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Print Styles */
@media print {
    .hero, .client-slider, .whatsapp-float, #scroll-top, #hamburger, #mobile-menu, header nav {
        display: none !important;
    }
    
    header {
        position: static !important;
    }
    
    section {
        page-break-inside: avoid;
    }
}

/* Loading States */
.loading {
    opacity: 0.5;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #3498DB;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spinner 0.6s linear infinite;
}

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

/* Form Message Styles */
#form-message.success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
    animation: fadeIn 0.5s ease;
}

#form-message.error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
    animation: fadeIn 0.5s ease;
}

/* Focus Visible for Accessibility */
:focus-visible {
    outline: 2px solid #3498DB;
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible {
    outline: 2px solid #3498DB;
    outline-offset: 2px;
}

/* Skip to Content Link for Accessibility */
.skip-to-content {
    position: absolute;
    top: -40px;
    left: 0;
    background: #3498DB;
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-to-content:focus {
    top: 0;
}

/* Touch Device Optimization */
@media (hover: none) and (pointer: coarse) {
    /* Remove hover effects on touch devices */
    .hover-lift:hover {
        transform: none;
    }
    
    .btn-gradient:hover {
        transform: none;
    }
    
    /* Increase touch target size */
    button, a, input, textarea, select {
        min-height: 48px;
    }
}

/* High DPI Displays */
@media 
    (-webkit-min-device-pixel-ratio: 2),
    (min-resolution: 192dpi) {
    /* Optimize for retina displays */
    img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Landscape Orientation on Mobile */
@media (max-width: 768px) and (orientation: landscape) {
    #home {
        min-height: auto;
        padding-top: calc(var(--header-height-mobile) + 1rem);
        padding-bottom: 2rem;
    }
    
    .hero h1 {
        font-size: 1.5rem;
    }
    
    .hero p {
        font-size: 0.875rem;
    }
}

/* Safari Specific Fixes */
@supports (-webkit-touch-callout: none) {
    /* iOS Safari */
    input[type="text"],
    input[type="email"],
    input[type="tel"],
    textarea {
        font-size: 16px; /* Prevents zoom on focus */
    }
}

/* Firefox Specific Fixes */
@-moz-document url-prefix() {
    /* Firefox-specific styles */
    .client-slider .flex {
        will-change: transform;
    }
}

/* Edge Specific Fixes */
@supports (-ms-ime-align: auto) {
    /* Edge-specific styles */
    .grid {
        display: -ms-grid;
    }
}

/* Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
    /* Add dark mode styles if needed */
}

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

/* Extra Small Devices */
@media (max-width: 374px) {
    html {
        font-size: 13px;
    }
    
    .container {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }
}

/* Large Desktop */
@media (min-width: 1920px) {
    .hero h1 {
        font-size: 5rem;
    }
    
    .hero p {
        font-size: 1.75rem;
    }
}

/* Ultra Wide */
@media (min-width: 2560px) {
    .container {
        max-width: 2400px;
    }
    
    html {
        font-size: 20px;
    }
}

/* Zoom Support */
@media (min-width: 1024px) {
    /* Ensures layout stays intact at 50% zoom */
    body {
        min-width: 512px;
    }
}

@media (min-width: 1024px) and (max-width: 1366px) {
    /* Optimized for common laptop resolutions */
    .container {
        padding-left: 2rem;
        padding-right: 2rem;
    }
}

/* iPad Pro Specific */
@media only screen 
    and (min-device-width: 1024px) 
    and (max-device-width: 1366px) 
    and (-webkit-min-device-pixel-ratio: 2) {
    /* iPad Pro specific styles */
    .container {
        padding-left: 3rem;
        padding-right: 3rem;
    }
}

/* Prevent Layout Shift */
img, video {
    max-width: 100%;
    height: auto;
}

/* Performance Optimization */
.client-slider .flex,
.animate-slide,
.animate-slide-slow {
    will-change: transform;
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* Smooth Font Rendering */
body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Selection Color */
::selection {
    background-color: #3498DB;
    color: white;
}

::-moz-selection {
    background-color: #3498DB;
    color: white;
}

/* Utility Classes */
.break-words {
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Aspect Ratio Boxes */
.aspect-square {
    aspect-ratio: 1 / 1;
}

.aspect-video {
    aspect-ratio: 16 / 9;
}

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

/* Safe Area for Notched Devices */
@supports (padding: max(0px)) {
    body {
        padding-left: max(0px, env(safe-area-inset-left));
        padding-right: max(0px, env(safe-area-inset-right));
    }
    
    header {
        padding-left: max(0px, env(safe-area-inset-left));
        padding-right: max(0px, env(safe-area-inset-right));
    }
    
    footer {
        padding-bottom: max(0px, env(safe-area-inset-bottom));
    }
}

@keyframes slide-slow {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.animate-slide-slow {
  animation: slide-slow 40s linear infinite; /* Increased from maybe 20s to 40s */
}