/* ===== PWA Styles ===== */

/* CRITICAL: Prevent horizontal scroll on mobile */
html, body {
    overflow-x: hidden !important;
    max-width: 100vw !important;
    position: relative;
}

/* Install Button */
.pwa-install-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
    border: none;
    color: white;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(233, 69, 96, 0.3);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.pwa-install-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(233, 69, 96, 0.4);
}

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

.pwa-install-btn.hidden {
    display: none;
}

.pwa-install-btn.visible {
    display: flex;
    animation: slideIn 0.3s ease;
}

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

.install-text {
    display: inline;
}

@media (max-width: 480px) {
    .install-text {
        display: none;
    }
    
    .pwa-install-btn {
        padding: 10px;
    }
}

/* Offline Indicator */
body.offline::before {
    content: '📡 You are offline';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 8px 16px;
    background: linear-gradient(135deg, #ff4444 0%, #e94560 100%);
    color: white;
    text-align: center;
    font-size: 0.875rem;
    font-weight: 500;
    z-index: 9999;
    animation: slideDown 0.3s ease;
}

body.offline .dashboard {
    margin-top: 36px;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

/* ===== Touch-Friendly UI Improvements ===== */

/* Minimum 44px touch targets */
.tab-btn {
    min-height: 48px;
    padding: 12px 20px;
}

.btn,
.btn-refresh,
.close-btn,
.nav-btn,
.quick-action-btn,
.filter-select {
    min-height: 44px;
    min-width: 44px;
}

.quick-action-btn {
    min-height: 80px;
}

/* Improved touch feedback */
.tab-btn,
.btn,
.quick-action-btn,
.activity-item,
.search-result,
.bob-card,
.calendar-event {
    -webkit-tap-highlight-color: rgba(233, 69, 96, 0.2);
    touch-action: manipulation;
}

/* Active states for touch */
.tab-btn:active,
.btn:active,
.nav-btn:active,
.quick-action-btn:active {
    opacity: 0.8;
    transform: scale(0.98);
}

/* Larger tap targets for checkboxes */
.filter-checkbox {
    padding: 8px;
    min-height: 44px;
    display: flex;
    align-items: center;
}

.filter-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-right: 8px;
}

/* Touch-friendly scrolling */
.nav-tabs,
.activity-list,
.search-results,
.calendar-grid {
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
}

/* Prevent text selection on interactive elements */
.tab-btn,
.btn,
.quick-action-btn,
.bob-card,
.close-btn {
    -webkit-user-select: none;
    user-select: none;
}

/* Better focus states for accessibility */
.tab-btn:focus-visible,
.btn:focus-visible,
.quick-action-btn:focus-visible,
.filter-select:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Remove focus outline on touch devices (visual only, not a11y) */
@media (hover: none) and (pointer: coarse) {
    .tab-btn:focus,
    .btn:focus,
    .quick-action-btn:focus {
        outline: none;
    }
}

/* ===== Mobile Viewport Fixes ===== */

/* Safe area insets for notched devices */
@supports (padding: env(safe-area-inset-bottom)) {
    .footer {
        padding-bottom: calc(16px + env(safe-area-inset-bottom));
    }
    
    .toast-container {
        bottom: calc(24px + env(safe-area-inset-bottom));
    }
    
    body.offline::before {
        padding-top: calc(8px + env(safe-area-inset-top));
    }
}

/* Prevent zoom on form inputs on iOS */
@media screen and (max-width: 768px) {
    input[type="text"],
    input[type="email"],
    input[type="search"],
    input[type="number"],
    select,
    textarea {
        font-size: 16px;
    }
}

/* Improve scroll performance */
.dashboard,
.main-content,
.activity-list,
.search-results {
    will-change: scroll-position;
}

/* ===== Standalone Mode Adjustments ===== */

@media (display-mode: standalone) {
    /* Hide browser-specific elements */
    .voice-fallback {
        display: none;
    }
    
    /* Full height in standalone */
    html, body {
        height: 100%;
        overflow: hidden;
    }
    
    .dashboard {
        height: 100%;
        overflow-y: auto;
    }
}

/* iOS Standalone fixes */
@media (display-mode: standalone) and (-webkit-device-pixel-ratio: 2) {
    /* Fix for iPhone notch */
    .header {
        padding-top: max(20px, env(safe-area-inset-top));
    }
}

/* ===== Loading States ===== */

.pwa-loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.3s ease;
}

.pwa-loading.hidden {
    opacity: 0;
    pointer-events: none;
}

.pwa-loading-icon {
    font-size: 4rem;
    margin-bottom: 24px;
    animation: pulse 2s infinite;
}

.pwa-loading-text {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ===== Swipe Gestures Hint ===== */

.swipe-hint {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-muted);
    font-size: 0.8125rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.swipe-hint.visible {
    opacity: 1;
    animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ===== Pull to Refresh Indicator ===== */

.pull-to-refresh {
    position: fixed;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: top 0.3s ease;
    z-index: 100;
}

.pull-to-refresh.active {
    top: 20px;
}

.pull-to-refresh.refreshing svg {
    animation: spin 1s linear infinite;
}