/* 
    UI Foundation - Shared Mobile & Layout Styles 
    Centralizes animations, safe-area insets, and touch interaction fixes.
*/

:root {
    --safe-top: env(safe-area-inset-top, 0px);
    --safe-bottom: env(safe-area-inset-bottom, 0px);
    --safe-left: env(safe-area-inset-left, 0px);
    --safe-right: env(safe-area-inset-right, 0px);
}

/* Safe Area Helpers */
.pt-safe {
    padding-top: var(--safe-top);
}

.pb-safe {
    padding-bottom: var(--safe-bottom);
}

.pl-safe {
    padding-left: var(--safe-left);
}

.pr-safe {
    padding-right: var(--safe-right);
}

/* Touch Optimization */
body {
    -webkit-tap-highlight-color: transparent;
    -webkit-overflow-scrolling: touch;
}

/* Prevent text selection on interactive elements */
button,
.btn,
.chip,
.tab-btn {
    user-select: none;
    -webkit-user-select: none;
}

/* Animations - Shared across all panels */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }

    to {
        transform: translateY(0);
    }
}

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

    to {
        transform: rotate(360deg);
    }
}

.animate-fade-in {
    animation: fadeIn 0.3s ease-out forwards;
}

.animate-slide-up {
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Custom Scrollbars - Centralized */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 10px;
}

.dark ::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.2);
}

/* Hide Scrollbar Utility */
.hide-scrollbar {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.hide-scrollbar::-webkit-scrollbar {
    display: none;
}

/* Standard Modal Overlay */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    z-index: 100;
}

/* Order Item State Fixes */
.item-card {
    transition: transform 0.2s;
    will-change: transform;
}

.item-card:active {
    transform: scale(0.95);
}