/* Kinder-Supermarkt - Modern, Vibrant & Kid-Friendly UI Styles */
:root {
    --primary-red: #ff5252;
    --primary-orange: #ff793f;
    --primary-yellow: #ffda79;
    --primary-green: #33d9b2;
    --primary-blue: #34ace0;
    --primary-purple: #706fd3;
    
    --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    --card-bg: #ffffff;
    --text-color: #2c3e50;
    --text-muted: #7f8c8d;
    
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 10px;
    
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.08);
    --shadow-card: 0 8px 20px rgba(0, 0, 0, 0.06);
    --shadow-button: 0 6px 15px rgba(0, 0, 0, 0.12);
    
    --font-main: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
}

html, body {
    margin: 0;
    padding: 0;
    font-family: var(--font-main);
    background: var(--bg-gradient);
    color: var(--text-color);
}

/* Fixed fullscreen layout & gesture prevention ONLY for Cashier and Terminal screens */
body.cashier-page, body.terminal-page {
    height: 100vh;
    height: 100dvh;
    width: 100vw;
    margin: 0;
    padding: 0;
    overflow: hidden !important;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    touch-action: none;
    overscroll-behavior: none;
    user-select: none;
    -webkit-user-select: none;
    font-size: 20px; /* Minimum 18px kid rule */
}

/* Header Bar */
.cashier-header {
    background: white;
    padding: max(0.6rem, env(safe-area-inset-top)) 1.5rem 0.6rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    height: 60px;
    box-sizing: border-box;
    flex-shrink: 0;
}

.cashier-header h1 {
    font-size: 2rem;
    color: #333;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.shop-badge {
    background: linear-gradient(45deg, var(--primary-red), var(--primary-orange));
    color: white;
    padding: 0.4rem 1.2rem;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 700;
}

/* Main Layout: 3-Column Split View (Left Sidebar, Middle Products, Right Cart) */
.cashier-layout {
    display: grid;
    grid-template-columns: clamp(120px, 14vw, 160px) 1fr clamp(300px, 28vw, 380px);
    gap: 1rem;
    padding: 0.8rem 1rem max(1rem, env(safe-area-inset-bottom)) 1rem;
    max-width: 100vw;
    margin: 0 auto;
    height: calc(100dvh - 60px);
    box-sizing: border-box;
    min-height: 0;
    overflow: hidden !important;
}

@media (max-width: 992px) {
    .cashier-layout {
        grid-template-columns: 130px 1fr 300px;
        gap: 0.6rem;
        padding: 0.5rem 0.6rem max(0.6rem, env(safe-area-inset-bottom)) 0.6rem;
        height: calc(100dvh - 60px);
        overflow: hidden !important;
    }
}

/* Left Category Sidebar (Fixed, No Horizontal/Vertical Scroll) */
.category-sidebar {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden !important;
    min-height: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    padding: 0.5rem;
    box-shadow: var(--shadow-soft);
    border: 2px solid rgba(255, 255, 255, 0.6);
    box-sizing: border-box;
}

.category-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    overflow: hidden !important;
    flex: 1;
    min-height: 0;
    width: 100%;
}

.cat-sidebar-btn {
    background: white;
    border: 3px solid transparent;
    border-radius: 18px;
    padding: 0.5rem 0.2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-card);
    transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    flex: 1;
    min-height: 0;
    max-height: 95px;
    width: 100%;
    text-align: center;
    box-sizing: border-box;
}

.cat-sidebar-btn .cat-emoji {
    font-size: 2rem;
    line-height: 1;
}

.cat-sidebar-btn .cat-name {
    font-size: 0.9rem;
    font-weight: 800;
    color: var(--text-color);
    margin-top: 0.2rem;
    word-break: break-word;
    line-height: 1.1;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.cat-sidebar-btn.active {
    background: var(--primary-blue);
    border-color: #227093;
    transform: scale(1.03);
    box-shadow: 0 8px 20px rgba(52, 172, 224, 0.4);
}

.cat-sidebar-btn.active .cat-name {
    color: white;
}

.cat-sidebar-btn:active {
    transform: scale(0.93);
}

.cat-sidebar-btn.cat-more-btn {
    background: linear-gradient(135deg, #fdcb6e 0%, #ffeaa7 100%);
    border-color: #e17055;
}

/* Category More Modal Styles */
.category-more-modal {
    max-width: 650px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
}

.category-modal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
    width: 100%;
}

.cat-modal-btn {
    background: #f8fafc;
    border: 3px solid #cbd5e1;
    border-radius: 20px;
    padding: 1rem 0.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    transition: all 0.2s ease;
}

.cat-modal-btn .cat-emoji {
    font-size: 2.8rem;
    line-height: 1;
}

.cat-modal-btn .cat-name {
    font-size: 1.1rem;
    font-weight: 800;
    color: #1e293b;
    margin-top: 0.4rem;
}

.cat-modal-btn.active {
    background: var(--primary-blue);
    border-color: #227093;
    color: white;
}

.cat-modal-btn.active .cat-name {
    color: white;
}

/* Main Product Section */
.products-section {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    height: 100%;
    overflow: hidden;
    min-height: 0;
}

.tab-btn {
    background: white;
    border: 3px solid transparent;
    padding: 0.85rem 1.5rem;
    border-radius: 50px;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-color);
    cursor: pointer;
    white-space: nowrap;
    box-shadow: var(--shadow-card);
    transition: all 0.2s ease;
}

.tab-btn.active {
    background: var(--primary-blue);
    color: white;
    border-color: #227093;
    transform: scale(1.05);
}

.tab-btn:active {
    transform: scale(0.95);
}

/* Product Grid Wrapper & Pagination */
.product-grid-wrapper {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(165px, 1fr));
    gap: 1.2rem;
    align-content: start;
    flex: 1;
    overflow: hidden; /* No scrollbar - Pagination system for kids! */
}

/* Pagination Bar */
.pagination-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.7rem 1rem;
    margin-top: 0.5rem;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    box-shadow: var(--shadow-card);
    flex-shrink: 0;
}

.page-arrow-btn {
    background: linear-gradient(135deg, var(--primary-blue) 0%, #227093 100%);
    color: white;
    border: none;
    padding: 0.85rem 2.2rem;
    border-radius: 50px;
    font-size: 1.35rem;
    font-weight: 900;
    cursor: pointer;
    box-shadow: 0 6px 18px rgba(52, 172, 224, 0.4);
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.page-arrow-btn:disabled {
    background: #cbd5e1;
    box-shadow: none;
    cursor: not-allowed;
    opacity: 0.4;
}

.page-arrow-btn:not(:disabled):hover {
    transform: scale(1.04);
}

.page-arrow-btn:not(:disabled):active {
    transform: scale(0.95);
}

.page-indicator {
    font-size: 1.35rem;
    font-weight: 900;
    color: var(--text-color);
    background: white;
    padding: 0.5rem 1.4rem;
    border-radius: 50px;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.06);
}

/* Landscape Warning Overlay for Cashier */
.landscape-warning-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #1e293b;
    color: white;
    z-index: 99999;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

@keyframes rotateTablet {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(90deg); }
}

@media screen and (orientation: portrait) {
    .landscape-warning-overlay {
        display: flex;
    }
}

.product-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 1.2rem 1rem;
    text-align: center;
    cursor: pointer;
    box-shadow: var(--shadow-card);
    border: 4px solid transparent;
    transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    min-height: 195px;
}

.product-card:hover {
    transform: translateY(-5px) scale(1.03);
    border-color: var(--primary-yellow);
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.1);
}

.product-card:active, .product-card.pressed {
    transform: scale(0.93) translateY(2px);
    border-color: var(--primary-blue) !important;
    background-color: #e8f4f8 !important;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

.product-card.card-pop {
    animation: cardPopAnim 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes cardPopAnim {
    0% { transform: scale(0.92); }
    50% { transform: scale(1.08); }
    100% { transform: scale(1); }
}

.product-card .emoji {
    font-size: 4.5rem;
    line-height: 1;
    margin-bottom: 0.4rem;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.12));
}

.product-card .img-thumb {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: 0.4rem;
}

.product-card .name {
    font-size: 1.3rem;
    font-weight: 800;
    color: #2c3e50;
    margin-bottom: 0.3rem;
    word-break: break-word;
}

.product-card .price {
    font-size: 1.2rem;
    font-weight: 900;
    color: #27ae60;
    background: #e8f8f5;
    padding: 0.25rem 0.85rem;
    border-radius: 20px;
}

/* Cart Panel (Sidebar / Shopping Basket) */
.cart-panel {
    background: white;
    border-radius: 28px;
    padding: 1.5rem;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.09);
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
    border: 3px solid #e2e8f0;
    box-sizing: border-box;
}

.cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 3px dashed #e2e8f0;
    padding-bottom: 0.9rem;
    margin-bottom: 0.9rem;
    flex-shrink: 0;
}

.cart-header h2 {
    font-size: 1.85rem;
    font-weight: 900;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: #1e293b;
}

.clear-btn {
    background: #ffe4e6;
    color: #e11d48;
    border: none;
    padding: 0.6rem 1.1rem;
    border-radius: 50px;
    font-size: 1.05rem;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.2s ease;
}

.clear-btn:active {
    transform: scale(0.9);
}

/* Cart Item List */
.cart-items {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    padding-right: 0.4rem;
}

.empty-cart-msg {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.35rem;
    margin: auto 0;
    line-height: 1.4;
}

.empty-cart-msg .big-emoji {
    font-size: 4.8rem;
    display: block;
    margin-bottom: 0.6rem;
}

.cart-item {
    background: #f8fafc;
    border-radius: 18px;
    padding: 0.8rem 0.9rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.6rem;
    border: 2px solid #edf2f7;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
    animation: popIn 0.25s ease-out;
    box-sizing: border-box;
    width: 100%;
    overflow: hidden;
}

@keyframes popIn {
    0% { transform: scale(0.8); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.cart-item-info {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.cart-item-emoji {
    font-size: 2.2rem;
    line-height: 1;
    flex-shrink: 0;
}

.cart-item-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.cart-item-name {
    font-weight: 800;
    font-size: 1.15rem;
    color: #1e293b;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    width: 100%;
}

.cart-item-price {
    font-size: 1.1rem;
    color: #00b894;
    font-weight: 800;
}

/* Cart Quantity Controls */
.qty-controls {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    flex-shrink: 0;
}

.qty-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    font-size: 1.6rem;
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.qty-btn.minus {
    background: #ffeaa7;
    color: #d63031;
    box-shadow: 0 4px 10px rgba(214, 48, 49, 0.15);
}

.qty-btn.plus {
    background: #55efc4;
    color: #00b894;
    box-shadow: 0 4px 10px rgba(0, 184, 148, 0.18);
}

.qty-btn:active {
    transform: scale(0.85);
}

.qty-count {
    font-weight: 900;
    font-size: 1.4rem;
    min-width: 32px;
    text-align: center;
    color: #0f172a;
}

/* Cart Footer / Pay Button */
.cart-footer {
    border-top: 3px dashed #e2e8f0;
    padding-top: 1.2rem;
    margin-top: 1.2rem;
}

.total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 1.2rem;
    color: #0f172a;
}

.total-amount {
    color: #00a878;
    background: linear-gradient(135deg, #e6fffa 0%, #b2f5ea 100%);
    border: 2px solid #81e6d9;
    padding: 0.35rem 1.4rem;
    border-radius: 50px;
    font-size: 2.2rem;
    letter-spacing: 0.5px;
}

.pay-btn {
    width: 100%;
    background: linear-gradient(135deg, #00b894 0%, #00cec9 100%);
    color: white;
    border: none;
    padding: 1.3rem;
    border-radius: 24px;
    font-size: 2rem;
    font-weight: 900;
    cursor: pointer;
    box-shadow: 0 10px 25px rgba(0, 184, 148, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    transition: all 0.2s ease;
}

.pay-btn:disabled {
    background: #cbd5e1;
    box-shadow: none;
    cursor: not-allowed;
    opacity: 0.65;
}

.pay-btn:not(:disabled):hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 30px rgba(0, 184, 148, 0.5);
}

.pay-btn:not(:disabled):active {
    transform: scale(0.96);
}

/* Fullscreen Overlay (Waiting for Payment / Success) */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    animation: fadeIn 0.3s ease;
}

.hidden {
    display: none !important;
}

.overlay.hidden {
    display: none !important;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.overlay-content {
    background: white;
    color: var(--text-color);
    padding: 3rem 4rem;
    border-radius: 32px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    max-width: 550px;
    width: 90%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Pulse Card Animation */
.card-animation-icon {
    font-size: 7rem;
    margin-bottom: 1rem;
    animation: pulseCard 1.5s infinite ease-in-out;
}

@keyframes pulseCard {
    0% { transform: scale(1); filter: drop-shadow(0 0 0 rgba(52, 172, 224, 0)); }
    50% { transform: scale(1.15); filter: drop-shadow(0 0 25px rgba(52, 172, 224, 0.8)); }
    100% { transform: scale(1); filter: drop-shadow(0 0 0 rgba(52, 172, 224, 0)); }
}

/* Photo Success Display */
.card-photo-container {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    overflow: hidden;
    border: 6px solid var(--primary-green);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    margin-bottom: 1.5rem;
    animation: popPhoto 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popPhoto {
    0% { transform: scale(0); }
    80% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.card-photo-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cancel-payment-btn {
    margin-top: 2rem;
    background: #fab1a0;
    color: #d63031;
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-size: 1.3rem;
    font-weight: 800;
    cursor: pointer;
}

.cancel-payment-btn:active {
    transform: scale(0.95);
}