/* ========================================
   Utilities - Helper classes, Scroll buttons, etc.
   ======================================== */

/* === Accessibility === */

/* Skip Links */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--theme-dark);
    color: white;
    padding: 8px 12px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
    transition: top 0.3s ease;
}

.skip-link:focus {
    top: 6px;
    outline: 2px solid var(--theme-info);
    outline-offset: 2px;
}

/* Focus Indicators */
*:focus {
    outline: 2px solid var(--theme-info);
    outline-offset: 2px;
}

/* Screen Reader Only Content */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.sr-only-focusable:focus {
    position: static;
    width: auto;
    height: auto;
    padding: inherit;
    margin: inherit;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

/* === Scroll to Top Button === */
#scrollToTopBtn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--theme-base);
    color: var(--text-dark);
    border: 2px solid var(--theme-muted);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(93, 156, 190, 0.3);
    z-index: 1040;
}

#scrollToTopBtn:hover {
    background: var(--theme-muted);
    color: var(--text-white);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(93, 156, 190, 0.4);
}

#scrollToTopBtn.show {
    opacity: 1;
    visibility: visible;
}

@media (max-width: 767px) {
    #scrollToTopBtn {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    #scrollToTopBtn {
        bottom: 15px;
        right: 15px;
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

/* === Touch Interactions === */

/* Touch feedback animations */
.touch-feedback {
    transition: transform 0.15s ease;
}

.touch-feedback:active {
    transform: scale(0.98);
}

/* Swipe animations */
.swipe-left {
    transform: translateX(-20px);
    opacity: 0.7;
    transition: all 0.3s ease;
}

.swipe-right {
    transform: translateX(20px);
    opacity: 0.7;
    transition: all 0.3s ease;
}

/* Touch-friendly button sizes */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 44px;
        min-width: 44px;
    }

    .card {
        transition: transform 0.1s ease;
    }

    .card:active {
        transform: scale(0.98);
    }

    .btn-touch-friendly {
        min-height: 48px;
        min-width: 48px;
        padding: 12px 16px;
    }

    .card-touch-friendly {
        margin-bottom: 12px;
    }

    .card-touch-friendly .card-body {
        padding: 16px;
    }
}

/* Prevent text selection on touch */
.touch-no-select {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* Touch scrolling improvements */
.touch-scroll,
.touch-container {
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y;
}

/* Long press indication */
.long-press-active {
    background-color: rgba(var(--theme-info-rgb), 0.1);
    border-radius: 4px;
}

/* Double tap feedback */
.double-tap-feedback {
    animation: double-tap-pulse 0.3s ease;
}

@keyframes double-tap-pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* === Text & Color Utilities === */

.text-info {
    color: var(--theme-info) !important;
}

.text-success {
    color: var(--theme-success) !important;
}

.text-danger {
    color: var(--theme-danger) !important;
}

.text-warning {
    color: var(--theme-warning) !important;
}

.bg-dark .text-info,
.dark-bg .text-info,
.navbar-dark .text-info {
    color: var(--theme-info-on-dark) !important;
}

.bg-dark .text-success,
.dark-bg .text-success,
.navbar-dark .text-success {
    color: var(--theme-success-on-dark) !important;
}

.bg-dark .text-danger,
.dark-bg .text-danger,
.navbar-dark .text-danger {
    color: var(--theme-danger-on-dark) !important;
}

.bg-dark .text-warning,
.dark-bg .text-warning,
.navbar-dark .text-warning {
    color: var(--theme-warning-on-dark) !important;
}

.bg-primary, .card.bg-primary, .card-header.bg-primary {
    background: var(--theme-base) !important;
    color: var(--text-dark) !important;
}

.bg-info, .card.bg-info, .card-header.bg-info {
    background: var(--theme-light) !important;
    color: var(--text-dark) !important;
}

.bg-success, .card.bg-success, .card-header.bg-success {
    background: var(--theme-success) !important;
    color: var(--text-white) !important;
}

.bg-danger, .card.bg-danger, .card-header.bg-danger {
    background: var(--theme-danger) !important;
    color: var(--text-white) !important;
}

.bg-light .text-white,
.card .text-white {
    color: var(--text-dark) !important;
}

.bg-dark, .navbar-dark, .dark-bg {
    color: var(--text-white) !important;
}

.badge.bg-dark,
.btn-dark {
    color: var(--text-white) !important;
}

.bg-theme-dark,
.theme-dark-bg,
.has-theme-dark {
    background: var(--theme-dark) !important;
    color: var(--text-white) !important;
}

.btn.btn-theme-dark,
.badge.theme-dark {
    background: var(--theme-dark) !important;
    color: var(--text-white) !important;
}

.card, .bg-light, .container,
.d-flex.justify-content-between.align-items-center.mb-4.p-3.bg-light.rounded-3 {
    color: var(--text-dark) !important;
}

/* === Helper classes === */

.use-system-font,
.fallback-latin {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans JP', 'Helvetica Neue', Arial, sans-serif !important;
}

.emoji-icon,
.icon-emoji {
    font-family: 'Apple Color Emoji', 'Segoe UI Emoji', 'Noto Color Emoji', sans-serif;
    font-style: normal;
    font-size: 1.05rem;
    line-height: 1;
    display: inline-block;
    width: 1.45rem;
    text-align: center;
}

/* === Global Animation Disable === */
/* Emergency global animation/transition disable to avoid visual jitter */
body * {
    transition: none !important;
    animation: none !important;
    transform: none !important;
    will-change: auto !important;
}

.card, .menu-card, .admin-order-card {
    transition: none !important;
}

.card:hover, .menu-card:hover, .admin-order-card:hover {
    transform: none !important;
}

/* === Mobile Optimizations === */

@media (max-width: 768px) {
    body {
        padding-top: 80px;
    }
}

@media (max-width: 320px) {
    body {
        padding-top: 60px;
    }

    .container, .container-fluid {
        padding-left: 8px;
        padding-right: 8px;
    }

    .card {
        border-radius: 12px;
        margin-bottom: 0.5rem;
    }

    .card-body {
        padding: 0.5rem;
    }

    .card-header {
        padding: 0.5rem;
    }

    .badge {
        font-size: 0.7rem;
        padding: 0.25rem 0.5rem;
        white-space: nowrap;
    }

    .fw-bold.fs-2 {
        font-size: 1.25rem;
    }

    .fw-bold.fs-4 {
        font-size: 1rem;
    }

    .d-flex {
        flex-wrap: wrap;
    }

    .btn-group {
        flex-shrink: 0;
        white-space: nowrap;
    }

    .btn-group-sm > .btn {
        font-size: 0.65rem;
        padding: 0.2rem 0.3rem;
    }

    * {
        word-break: break-word;
        overflow-wrap: break-word;
    }

    code, pre, .fallback-latin {
        word-break: normal;
    }
}

/* === Responsive Container Adjustments === */

@media (max-width: 768px) {
    .card {
        border-radius: 12px;
    }

    .navbar-brand {
        font-size: 1.15rem;
    }
}

@media (max-width: 992px) {
    .card {
        border-radius: 12px;
    }
}

@media (max-width: 360px) {
    .fw-bold.fs-2 {
        font-size: 1.25rem;
    }

    .fw-bold.fs-4 {
        font-size: 1rem;
    }

    .container, .container-fluid {
        padding-left: 8px;
        padding-right: 8px;
    }

    h1 {
        font-size: 1.35rem;
    }

    h2 {
        font-size: 1.15rem;
    }

    h3 {
        font-size: 1rem;
    }

    h4, h5, h6 {
        word-break: break-word;
        overflow-wrap: break-word;
    }
}