/**
 * Android Optimizations - Edirectz Design System
 * Comprehensive mobile optimizations for Android devices
 * Ensures optimal user experience across all Android browsers (Chrome, Firefox, Samsung Internet)
 */

/* ============================================
   ANDROID SAFE AREA INSETS (Notch/Cutout Support)
   ============================================ */

/* Add safe area padding for Android devices with notches/cutouts */
@supports (padding-left: env(safe-area-inset-left)) {
    /* Header - Top safe area for notch */
    header,
    .site-header,
    .main-header {
        padding-top: env(safe-area-inset-top);
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }
    
    /* Bottom navigation - Home indicator */
    .mobile-bottom-nav,
    .mobile-nav-container,
    .ai-chat-input {
        padding-bottom: env(safe-area-inset-bottom);
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }
    
    /* Modals - All safe areas */
    .modal-container {
        padding-top: env(safe-area-inset-top);
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }
    
    /* Modal footer specifically for bottom safe area */
    .modal-footer {
        padding-bottom: calc(var(--modal-footer-padding-y, 0.75rem) + env(safe-area-inset-bottom));
    }
    
    /* Fixed positioned elements */
    .fixed-bottom,
    .sticky-bottom {
        bottom: calc(20px + env(safe-area-inset-bottom));
        left: env(safe-area-inset-left);
        right: env(safe-area-inset-right);
    }
    
    /* Main content - Bottom safe area */
    main,
    .main-content,
    .content-wrapper {
        padding-bottom: calc(20px + env(safe-area-inset-bottom));
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }
}

/* ============================================
   ANDROID TOUCH TARGET OPTIMIZATIONS
   ============================================ */

/* Ensure minimum touch target size of 48x48dp (Android Material Design) */
button,
a,
.btn,
.card,
.portfolio-card,
.ai-suggestion-card,
.suggestion-card,
.nav-item,
.menu-item,
.dropdown-item,
.notification-item {
    min-height: 48px;
    min-width: 48px;
}

/* Small buttons can be 40dp minimum */
.btn-sm {
    min-height: 40px;
    min-width: 40px;
}

/* Icon-only buttons need explicit touch targets */
.icon-btn,
.close-btn,
.modal-close,
.menu-toggle,
.btn-icon {
    min-width: 48px;
    min-height: 48px;
    padding: 12px;
}

/* ============================================
   ANDROID SCROLLING OPTIMIZATIONS
   ============================================ */

/* Enable smooth scrolling on Android */
html {
    scroll-behavior: smooth;
}

/* Improve scroll performance on Android */
.modal-body,
.ai-chat-messages,
.portfolio-cards-container,
.gallery-grid,
.dashboard-content {
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    will-change: transform;
}

/* ============================================
   ANDROID RIPPLE EFFECT ALTERNATIVE
   ============================================ */

/* Add subtle tap feedback for Android (no native ripple on web) */
.btn:active,
.card:active,
.portfolio-card:active,
.ai-suggestion-card:active {
    transform: scale(0.98);
    opacity: 0.9;
    transition: transform 0.1s ease, opacity 0.1s ease;
}

/* ============================================
   ANDROID FONT RENDERING
   ============================================ */

/* Improve font rendering on Android */
body,
html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Prevent Android from zooming on input focus */
input,
textarea,
select {
    font-size: 16px !important;
}

/* ============================================
   ANDROID FORM OPTIMIZATIONS
   ============================================ */

/* Style Android form elements to match design */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
input[type="url"],
textarea,
select {
    -webkit-appearance: none;
    appearance: none;
    border-radius: 4px;
    background-color: var(--theme-bg-input);
}

/* Android select dropdown styling */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
    appearance: none;
    -webkit-appearance: none;
}

/* Android checkbox/radio styling */
input[type="checkbox"],
input[type="radio"] {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border: 2px solid var(--theme-border-primary);
    border-radius: 4px;
    background: var(--theme-bg-input);
}

input[type="checkbox"]:checked {
    background: var(--theme-primary);
    border-color: var(--theme-primary);
}

input[type="radio"] {
    border-radius: 50%;
}

input[type="radio"]:checked {
    background: var(--theme-primary);
    border-color: var(--theme-primary);
}

/* ============================================
   ANDROID BACKDROP FILTER (Glassmorphism)
   ============================================ */

/* Enable backdrop filter with webkit prefix for Chrome */
.glass,
.glass-effect,
.modal-overlay,
.mobile-nav-container,
.site-header {
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    backdrop-filter: blur(20px) saturate(180%);
}

/* Mobile navigation spacing for Android */
.mobile-nav-container {
    padding: 0 8px;
    gap: 4px;
}

.mobile-nav-item {
    flex: 0 0 clamp(56px, 18vw, 72px);
    padding: 0 4px;
}

/* Fallback for browsers without backdrop support */
@supports not (backdrop-filter: blur(20px)) {
    .glass,
    .glass-effect,
    .modal-overlay,
    .mobile-nav-container,
    .site-header {
        background: rgba(255, 255, 255, 0.95);
    }
    
    [data-theme="dark"] .glass,
    [data-theme="dark"] .glass-effect,
    [data-theme="dark"] .modal-overlay,
    [data-theme="dark"] .mobile-nav-container,
    [data-theme="dark"] .site-header {
        background: rgba(15, 23, 42, 0.95);
    }
}

/* ============================================
   ANDROID SPECIFIC MEDIA QUERIES
   ============================================ */

/* Small Android phones (320px - 360px) */
@media (max-width: 360px) {
    .modal-container {
        width: 95vw;
        max-width: 320px;
    }
    
    .btn {
        padding: 12px 16px;
        font-size: 14px;
    }
    
    .card {
        padding: 16px;
    }
}

/* Standard Android phones (361px - 412px) */
@media (min-width: 361px) and (max-width: 412px) {
    .modal-container {
        width: 90vw;
        max-width: 360px;
    }
}

/* Large Android phones (413px - 480px) */
@media (min-width: 413px) and (max-width: 480px) {
    .modal-container {
        width: 90vw;
        max-width: 420px;
    }
}

/* Android Tablets (481px - 768px) */
@media (min-width: 481px) and (max-width: 768px) {
    .modal-container {
        width: 85vw;
        max-width: 600px;
    }
    
    .grid-2,
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Large Android Tablets (769px - 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
    .modal-container {
        width: 80vw;
        max-width: 800px;
    }
    
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================
   ANDROID CHROME SPECIFIC FIXES
   ============================================ */

/* Prevent 100vh issues on Android Chrome */
.android-fix-100vh {
    height: 100vh;
    height: -webkit-fill-available;
    height: 100dvh; /* Dynamic viewport height for Chrome */
}

.modal-body,
.ai-chat-messages {
    max-height: 80vh;
    max-height: -webkit-fill-available;
    max-height: 100dvh;
}

/* Fix Android input zoom on landscape */
@media (max-width: 768px) and (orientation: landscape) {
    input,
    textarea,
    select {
        font-size: 16px !important;
    }
}

/* Prevent Android from selecting text on non-editable elements */
.no-select {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* ============================================
   ACCESSIBILITY - REDUCED MOTION
   ============================================ */

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

/* ============================================
   DARK MODE ANDROID OPTIMIZATIONS
   ============================================ */

@media (prefers-color-scheme: dark) {
    /* Adjust safe area backgrounds for dark mode */
    @supports (padding-top: env(safe-area-inset-top)) {
        header,
        .site-header {
            background-color: var(--theme-bg-primary);
        }
        
        .mobile-nav-container {
            background-color: rgba(15, 23, 42, 0.85);
        }
    }
    
    /* Android form elements in dark mode */
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    input[type="tel"],
    input[type="url"],
    textarea,
    select {
        background-color: var(--theme-bg-input);
        color: var(--theme-text-primary);
    }
    
    /* Android checkbox/radio in dark mode */
    input[type="checkbox"],
    input[type="radio"] {
        border-color: var(--theme-border-secondary);
        background-color: var(--theme-bg-input);
    }
}

/* ============================================
   ANDROID HOVER STATE FIX
   ============================================ */

/* Android doesn't have hover, prevent hover styles from showing tap state */
@media (hover: none) and (pointer: coarse) {
    .btn:hover,
    .card:hover,
    .portfolio-card:hover,
    .ai-suggestion-card:hover {
        transform: none;
        box-shadow: none;
    }
    
    .btn:active,
    .card:active,
    .portfolio-card:active,
    .ai-suggestion-card:active {
        transform: scale(0.98);
        opacity: 0.9;
    }
}

/* ============================================
   ANDROID KEYBOARD HANDLING
   ============================================ */

/* Prevent content from being hidden behind keyboard on Android */
.modal-container,
.modal-body {
    max-height: calc(100vh - env(keyboard-inset-height, 0) - 100px);
    max-height: calc(100dvh - 100px);
}

/* ============================================
   ANDROID TEXT SELECTION COLOR
   ============================================ */

::selection {
    background: var(--theme-primary);
    color: var(--theme-text-inverse);
}

::-moz-selection {
    background: var(--theme-primary);
    color: var(--theme-text-inverse);
}

/* ============================================
   ANDROID IMAGE OPTIMIZATIONS
   ============================================ */

/* Prevent image zoom on double-tap on Android */
img {
    touch-action: manipulation;
    max-width: 100%;
    height: auto;
}

/* ============================================
   ANDROID VIDEO OPTIMIZATIONS
   ============================================ */

video {
    object-fit: contain;
    max-width: 100%;
}

/* Note: Add playsinline attribute to video tags in HTML for iOS inline playback */

/* ============================================
   ANDROID FOCUS VISIBILITY
   ============================================ */

/* Improve focus visibility for keyboard navigation */
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid var(--theme-primary);
    outline-offset: 2px;
}

/* ============================================
   ANDROID MATERIAL DESIGN RIPPLE SIMULATION
   ============================================ */

/* Ripple effect removed per user request */

/* ============================================
   ANDROID NAVBAR COLOR SCHEME
   ============================================ */

/* Theme color for Chrome/Edge address bar */
@media (prefers-color-scheme: light) {
    :root {
        --android-theme-color: #4f46e5;
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        --android-theme-color: #1e1b4b;
    }
}

/* ============================================
   ANDROID CONTENT ADJUSTMENT SYSTEM
   ============================================ */

/* Chrome for Android content adjustment */
@supports (content-visibility: auto) {
    .card,
    .portfolio-card {
        content-visibility: auto;
        contain-intrinsic-size: auto 300px;
    }
}

/* ============================================
   ANDROID PERFORMANCE OPTIMIZATIONS
   ============================================ */

/* Improve rendering performance on lower-end Android devices */
@media (max-width: 480px) {
    /* Reduce box-shadows for performance */
    .card,
    .portfolio-card {
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    }
    
    /* Simplify gradients */
    .brand-icon {
        background: var(--theme-primary);
    }
    
    /* Disable GPU-intensive effects on low-end devices */
    .glass,
    .glass-effect {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        background: var(--theme-bg-card);
    }
}