/**
 * Native App Styles
 * Provides native-like styling for PWA
 * Version: 1.0.0
 */

/* ============================================
   SAFE AREA SUPPORT
   ============================================ */

/* Apply safe area padding to body */
body {
    padding-top: var(--sat);
    padding-right: var(--sar);
    padding-bottom: var(--sab);
    padding-left: var(--sal);
}

/* Safe area classes for specific elements */
.safe-area-top {
    padding-top: calc(var(--sat) + 16px);
}

.safe-area-bottom {
    padding-bottom: calc(--sab) + 16px);
}

.safe-area-left {
    padding-left: calc(var(--sal) + 16px);
}

.safe-area-right {
    padding-right: calc(var(--sar) + 16px);
}

/* ============================================
   PULL TO REFRESH
   ============================================ */

.pull-to-refresh-indicator {
    position: absolute;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 9999;
    pointer-events: none;
}

.pull-to-refresh-spinner {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    color: var(--primary);
}

.pull-to-refresh-indicator.ready .pull-to-refresh-spinner {
    color: var(--success);
}

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

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ============================================
   PAGE TRANSITIONS
   ============================================ */

.page-transition-enter {
    animation: slideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-transition-exit {
    animation: slideOut 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOut {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(-30%);
    }
}

.slide-left.page-transition-enter {
    animation: slideInLeft 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-left.page-transition-exit {
    animation: slideOutLeft 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOutLeft {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(-30%);
    }
}

.slide-right.page-transition-enter {
    animation: slideInRight 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-right.page-transition-exit {
    animation: slideOutRight 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(-100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOutRight {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(30%);
    }
}

/* ============================================
   NATIVE BUTTON ANIMATIONS
   ============================================ */

button, .btn, [role="button"] {
    transition: transform 0.1s ease, box-shadow 0.1s ease;
}

button:active, .btn:active, [role="button"]:active {
    transform: scale(0.96);
}

/* ============================================
   LOADING SKELETONS
   ============================================ */

.skeleton {
    background: linear-gradient(
        90deg,
        var(--border-light) 0%,
        var(--border) 50%,
        var(--border-light) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

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

.skeleton-text {
    height: 16px;
    margin-bottom: 8px;
    border-radius: 4px;
}

.skeleton-title {
    height: 24px;
    width: 60%;
    margin-bottom: 12px;
    border-radius: 6px;
}

.skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

.skeleton-card {
    height: 120px;
    border-radius: var(--radius-md);
}

.skeleton-button {
    height: 44px;
    width: 120px;
    border-radius: var(--radius-sm);
}

/* ============================================
   BOTTOM SHEET MODALS
   ============================================ */

.bottom-sheet {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--surface);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    max-height: 90vh;
    overflow-y: auto;
    padding-bottom: calc(var(--sab) + 16px);
}

.bottom-sheet.open {
    transform: translateY(0);
}

.bottom-sheet-handle {
    width: 36px;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    margin: 12px auto 16px;
}

.bottom-sheet-content {
    padding: 0 20px 20px;
}

/* ============================================
   NATIVE TOAST NOTIFICATIONS
   ============================================ */

.native-toast {
    position: fixed;
    bottom: calc(var(--sab) + 80px);
    left: 16px;
    right: 16px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateY(calc(100% + 32px));
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 10000;
}

.native-toast.show {
    transform: translateY(0);
}

.native-toast-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.native-toast-content {
    flex: 1;
}

.native-toast-title {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 2px;
    color: var(--text-primary);
}

.native-toast-message {
    font-size: 13px;
    color: var(--text-secondary);
}

.native-toast.success .native-toast-icon {
    color: var(--success);
}

.native-toast.error .native-toast-icon {
    color: var(--danger);
}

.native-toast.warning .native-toast-icon {
    color: var(--warning);
}

/* ============================================
   INSTALL BANNER
   ============================================ */

.install-banner {
    position: fixed;
    bottom: calc(var(--sab) + 16px);
    left: 16px;
    right: 16px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--purple) 100%);
    color: white;
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
    transform: translateY(calc(100% + 32px));
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 9999;
}

.install-banner.visible {
    transform: translateY(0);
}

.install-banner-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.install-banner-content {
    flex: 1;
}

.install-banner-title {
    font-weight: 700;
    font-size: 15px;
    margin-bottom: 2px;
}

.install-banner-subtitle {
    font-size: 13px;
    opacity: 0.9;
}

.install-banner-actions {
    display: flex;
    gap: 8px;
}

.install-banner-btn {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    border: none;
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
    transition: transform 0.1s;
}

.install-banner-btn:active {
    transform: scale(0.96);
}

.install-banner-btn-primary {
    background: white;
    color: var(--primary);
}

.install-banner-btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* ============================================
   KEYBOARD ADJUSTMENTS
   ============================================ */

body.keyboard-open {
    /* Adjust layout when keyboard is open */
}

body.keyboard-open .bottom-nav {
    transform: translateY(var(--keyboard-height, 0));
}

/* ============================================
   NATIVE ACTION SHEET
   ============================================ */

.action-sheet {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--surface);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1001;
    padding-bottom: calc(var(--sab) + 16px);
}

.action-sheet.open {
    transform: translateY(0);
}

.action-sheet-handle {
    width: 36px;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    margin: 12px auto 16px;
}

.action-sheet-title {
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    padding: 0 20px 16px;
    color: var(--text-secondary);
}

.action-sheet-actions {
    padding: 0 16px;
}

.action-sheet-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    font-size: 16px;
    color: var(--text-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background 0.2s;
}

.action-sheet-item:active {
    background: var(--background-alt);
}

.action-sheet-item.destructive {
    color: var(--danger);
}

.action-sheet-item-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.action-sheet-cancel {
    margin-top: 12px;
    padding: 16px 36px;
    background: var(--background-alt);
    border-radius: var(--radius-md);
    margin: 12px 16px 0;
    font-weight: 600;
}

/* ============================================
   DARK MODE OVERLAY
   ============================================ */

.modal-overlay, .action-sheet-overlay, .bottom-sheet-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 999;
    pointer-events: none;
}

.modal-overlay.show,
.action-sheet-overlay.show,
.bottom-sheet-overlay.show {
    opacity: 1;
    pointer-events: all;
}

/* ============================================
   RESPONSIVE TWEAKS
   ============================================ */

@media (max-width: 768px) {
    /* Make touch targets larger on mobile */
    button, .btn, [role="button"], a {
        min-height: 44px;
        min-width: 44px;
    }

    /* Increase tap padding */
    .sidebar-item, .nav-item, .list-item {
        padding: 14px 16px;
    }
}