/* PWA-specific styles for VeilChat */

/* PWA mode adjustments */
.pwa-mode {
    /* Add top padding for devices with notches/status bars */
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
}

/* Install button styling */
.install-button {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    transition: all 0.3s ease;
}

.install-button:hover {
    background: #45a049 !important;
    transform: translateY(-1px);
}

.install-button:active {
    transform: translateY(0);
}

/* Offline indicator */
#offline-indicator {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.7; }
    100% { opacity: 1; }
}

/* PWA splash screen styles */
@media (display-mode: standalone) {
    body {
        /* Remove any default margins for better fullscreen experience */
        margin: 0;
        padding: 0;
        
        /* Ensure full viewport usage */
        min-height: 100vh;
        min-height: -webkit-fill-available;
    }
    
    /* Hide elements that don't make sense in PWA mode */
    .browser-only {
        display: none !important;
    }
    
    /* Adjust chat container for PWA */
    .chat-container {
        min-height: 100vh;
        min-height: -webkit-fill-available;
    }
    
    /* Better touch targets for PWA */
    button, .button {
        min-height: 44px;
        min-width: 44px;
    }
}

/* iOS specific PWA adjustments */
@supports (-webkit-touch-callout: none) {
    .pwa-mode .chat-container {
        /* Account for iOS safe areas */
        padding-top: max(env(safe-area-inset-top), 20px);
        padding-bottom: max(env(safe-area-inset-bottom), 20px);
    }
    
    /* Fix iOS viewport height issues in PWA mode */
    .pwa-mode {
        height: -webkit-fill-available;
    }
}

/* Android specific PWA adjustments */
@media (display-mode: standalone) and (orientation: portrait) {
    .chat-window {
        /* Ensure chat window doesn't get cut off by system UI */
        max-height: calc(100vh - 140px);
    }
}

/* PWA input expansion fixes - applies to ALL screen sizes */
.pwa-mode .input-area.expanded #user-input {
    flex: 1 1 auto !important;
    width: calc(100% - 60px) !important;
    max-width: none !important;
    min-width: 0 !important;
}

.pwa-mode .input-area.expanded #attach-button,
.pwa-mode .input-area.expanded #mic-button {
    opacity: 0 !important;
    visibility: hidden !important;
    width: 0 !important;
    min-width: 0 !important;
    max-width: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
    overflow: hidden !important;
    flex-shrink: 1 !important;
    flex-basis: 0 !important;
    transition: all 0.3s ease;
}

.pwa-mode .input-area.expanded .button-row {
    margin-left: 3px !important;
    gap: 2px !important;
    flex-shrink: 0 !important;
    transition: all 0.3s ease;
}

.pwa-mode .input-area.expanded {
    gap: 3px !important;
}

/* Responsive adjustments for PWA */
@media screen and (max-width: 768px) {
    .pwa-mode .chat-container {
        padding: 10px 5px;
    }
    
    .pwa-mode .input-area {
        padding: 10px;
    }
    
    /* Make buttons more touch-friendly, but preserve input area button behavior */
    .pwa-mode button:not(.input-area button):not(#attach-button):not(#mic-button):not(#send-button):not(#settings-button) {
        padding: 12px 16px;
        font-size: 16px; /* Prevent zoom on iOS */
    }
    
    /* Ensure input area buttons maintain their original styling for expansion to work */
    .pwa-mode .input-area button {
        /* Keep original button dimensions from style.css */
        height: 44px;
        width: 44px;
        padding: 0;
        font-size: 16px; /* Still prevent zoom on iOS */
    }
    
    .pwa-mode textarea {
        font-size: 16px; /* Prevent zoom on iOS */
    }
}

/* Dark theme adjustments for PWA */
@media (prefers-color-scheme: dark) {
    .pwa-mode {
        background-color: #1a1a1a;
        color: #ffffff;
    }
    
    .pwa-mode .install-button {
        background: #2d2d2d !important;
        color: #ffffff !important;
        border: 1px solid #444;
    }
}

/* Loading state for offline content */
.offline-loading {
    position: relative;
}

.offline-loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        rgba(255, 107, 107, 0.1) 10px,
        rgba(255, 107, 107, 0.1) 20px
    );
    pointer-events: none;
}

/* Improved accessibility for PWA */
@media (prefers-reduced-motion: reduce) {
    .install-button,
    #offline-indicator {
        animation: none !important;
        transition: none !important;
    }
}

/* Focus styles for keyboard navigation */
.pwa-mode button:focus,
.pwa-mode input:focus,
.pwa-mode textarea:focus {
    outline: 2px solid #4CAF50;
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .pwa-mode .install-button {
        border: 2px solid currentColor;
    }
    
    .pwa-mode #offline-indicator {
        border: 2px solid #ffffff;
    }
}

/* PWA scrollbar styling - even more minimal */
.pwa-mode .chat-window::-webkit-scrollbar,
.pwa-mode .panel-content::-webkit-scrollbar {
    width: 6px;
}

.pwa-mode .chat-window::-webkit-scrollbar-thumb,
.pwa-mode .panel-content::-webkit-scrollbar-thumb {
    background: #333;
}

.pwa-mode .chat-window::-webkit-scrollbar-thumb:hover,
.pwa-mode .panel-content::-webkit-scrollbar-thumb:hover {
    background: #666;
}