/*
   3Rivers WebTech Serverless POS Design System
   Vanilla CSS Premium Dark-Mode Theme
   Glassmorphism, Micro-animations, responsive layout.
*/

/* Inter, self-hosted (variable font, one file per subset) so the terminal
   renders identically with no internet — no fonts.googleapis.com dependency. */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 100 900;
    font-display: swap;
    src: url('/fonts/inter-var-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 100 900;
    font-display: swap;
    src: url('/fonts/inter-var-latin-ext.woff2') format('woff2');
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
    --brand-primary: var(--brand-primary);
    --brand-secondary: var(--brand-secondary);
    --brand-accent: var(--brand-accent);
    --brand-danger: var(--brand-danger);
    --touch-min: 44px;

    --bg-primary: #0f172a;       /* slate-900 */
    --bg-secondary: #1e293b;     /* slate-800 */
    --bg-tertiary: #334155;      /* slate-700 */
    --border-color: #475569;     /* slate-600 */
    --text-primary: #f8fafc;     /* slate-50 */
    --text-secondary: #cbd5e1;   /* slate-400 */
    
    --accent-emerald: var(--brand-primary);   /* emerald-500 */
    --accent-emerald-hover: #059669;
    --accent-emerald-trans: var(--brand-primary), 0.15);
    
    --accent-amber: var(--brand-accent);     /* amber-500 */
    --accent-amber-hover: #d97706;
    --accent-amber-trans: var(--brand-accent), 0.15);
    
    --accent-rose: #f43f5e;      /* rose-500 */
    --accent-rose-hover: #e11d48;
    --accent-rose-trans: var(--brand-danger), 0.15);
    
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    --font-stack: 'Inter', system-ui, -apple-system, sans-serif;
    --border-radius: 12px;
    --transition-speed: 0.2s;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-stack);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg-primary);
    background-image: 
        radial-gradient(circle at 15% 50%, var(--brand-primary), 0.15), transparent 25%),
        radial-gradient(circle at 85% 30%, var(--brand-danger), 0.15), transparent 25%),
        radial-gradient(circle at 50% 80%, var(--brand-accent), 0.15), transparent 25%);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* --- TOP HEADER NAVIGATION --- */
header {
    background-color: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    padding: 12px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--glass-shadow);
    z-index: 10;
}

.brand-section {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-logo {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--accent-emerald), var(--brand-secondary));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: #fff;
    font-size: 16px;
    box-shadow: 0 0 15px var(--accent-emerald-trans);
}

.brand-name {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 8px;
}

.nav-button {
    background-color: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-speed) ease;
}

.nav-button:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.05);
}

.nav-button.active {
    color: var(--accent-emerald);
    background-color: var(--accent-emerald-trans);
    border-color: var(--brand-primary), 0.3);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-secondary);
    padding: 6px 12px;
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: 50px;
    border: 1px solid var(--glass-border);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent-rose);
    box-shadow: 0 0 8px var(--accent-rose);
}

.status-dot.online {
    background-color: var(--accent-emerald);
    box-shadow: 0 0 8px var(--accent-emerald);
}

/* --- MAIN POS SCREEN LAYOUT --- */
.main-pos-container {
    flex: 1;
    display: flex;
    overflow: hidden;
}

/* Left Panel: Checkout & Cart */
.checkout-panel {
    width: 420px;
    background-color: var(--glass-bg);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    z-index: 5;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.15);
}

.cart-header {
    padding: 20px;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cart-title {
    font-size: 16px;
    font-weight: 700;
}

.clear-cart-btn {
    background: transparent;
    border: none;
    color: var(--accent-rose);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    padding: 12px 16px;
    margin: -8px;
    border-radius: 4px;
    transition: background var(--transition-speed);
}

.clear-cart-btn:hover {
    background-color: var(--accent-rose-trans);
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.cart-item {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    position: relative;
    animation: slideIn 0.25s ease-out;
}

.cart-item-main {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.cart-item-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
    max-width: 240px;
}

.cart-item-price {
    font-weight: 700;
    font-size: 14px;
    color: var(--text-primary);
}

.cart-item-modifiers {
    font-size: 12px;
    color: var(--text-secondary);
    padding-left: 8px;
    border-left: 2px solid var(--border-color);
}

.cart-item-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 6px;
}

.quantity-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.qty-btn {
    width: 44px;
    height: 44px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-speed);
}

.qty-btn:hover {
    background-color: var(--border-color);
}

.item-qty {
    font-weight: 700;
    font-size: 14px;
    width: 20px;
    text-align: center;
}

.cart-item-delete {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 12px;
    padding: 4px;
    border-radius: 4px;
    transition: all var(--transition-speed);
}

.cart-item-delete:hover {
    color: var(--accent-rose);
    background-color: var(--accent-rose-trans);
}

/* Cart Summary & Checkout Footer */
.cart-footer {
    padding: 20px;
    border-top: 1px solid var(--glass-border);
    background-color: rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--text-secondary);
}

.summary-row.total {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    border-top: 1px dashed var(--border-color);
    padding-top: 12px;
    margin-top: 4px;
}

.checkout-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 8px;
}

.checkout-btn {
    border: none;
    border-radius: var(--border-radius);
    padding: 14px;
    font-weight: 700;
    font-size: 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all var(--transition-speed) ease;
}

.checkout-btn.cash {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.checkout-btn.cash:hover {
    background-color: var(--border-color);
}

.checkout-btn.card {
    background-color: var(--accent-emerald);
    color: #fff;
    box-shadow: 0 4px 15px var(--accent-emerald-trans);
}

.checkout-btn.card:hover {
    background-color: var(--accent-emerald-hover);
    transform: translateY(-2px);
}

.checkout-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* Right Panel: Categories and Grid */
.menu-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.categories-bar {
    background-color: rgba(0, 0, 0, 0.1);
    padding: 16px 24px;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    gap: 10px;
    overflow-x: auto;
}

.category-tab {
    background-color: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    white-space: nowrap;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.category-tab:hover {
    color: var(--text-primary);
    border-color: var(--border-color);
}

.category-tab.active {
    background-color: var(--accent-emerald);
    color: #fff;
    border-color: var(--accent-emerald);
    box-shadow: 0 4px 12px var(--accent-emerald-trans);
}

.items-grid {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    grid-auto-rows: max-content;
    gap: 16px;
}

.item-card {
    background-color: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 16px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 12px;
    min-height: 150px;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
}

.item-card:hover {
    transform: translateY(-4px);
    border-color: var(--brand-primary), 0.4);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2), 0 0 8px var(--accent-emerald-trans);
}

.item-card-name {
    font-weight: 700;
    font-size: 15px;
    line-height: 1.3;
}

.item-card-desc {
    font-size: 12px;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.item-card-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.item-card-price {
    font-weight: 800;
    font-size: 16px;
    color: var(--text-primary);
}

.item-card-add-icon {
    width: 24px;
    height: 24px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--text-secondary);
    transition: all var(--transition-speed);
}

.item-card:hover .item-card-add-icon {
    background-color: var(--accent-emerald);
    color: #fff;
}

/* --- MODAL DIALOGS --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    background-color: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    width: 500px;
    max-width: 90vw;
    box-shadow: var(--glass-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: translateY(20px);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.1);
}

.modal-title {
    font-size: 18px;
    font-weight: 700;
}

.close-modal-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 20px;
    cursor: pointer;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-speed);
}

.close-modal-btn:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
    max-height: 60vh;
}

.modal-footer {
    padding: 20px;
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    background-color: rgba(0, 0, 0, 0.1);
}

/* Modifiers list styles in modal */
.modifier-section {
    margin-bottom: 20px;
}

.modifier-section-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}

.modifier-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.modifier-option {
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.modifier-option:hover {
    background-color: rgba(255, 255, 255, 0.03);
    border-color: var(--border-color);
}

.modifier-option.selected {
    background-color: var(--accent-emerald-trans);
    border-color: var(--accent-emerald);
}

.modifier-option-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.modifier-selector-icon {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: transparent;
    transition: all var(--transition-speed);
}

.modifier-option.selected .modifier-selector-icon {
    border-color: var(--accent-emerald);
    background-color: var(--accent-emerald);
    color: #fff;
}

.modifier-option-price {
    font-weight: 700;
    color: var(--accent-emerald);
}

/* --- KITCHEN DISPLAY SYSTEM (KDS) LAYOUT --- */
.kds-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 24px;
    overflow: hidden;
}

.kds-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.kds-title-section {
    display: flex;
    align-items: center;
    gap: 16px;
}

.kds-badge {
    background-color: var(--accent-amber-trans);
    border: 1px solid var(--accent-amber);
    color: var(--accent-amber);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 700;
}

.kds-grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    overflow-y: auto;
}

.kds-card {
    background-color: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--glass-shadow);
    overflow: hidden;
    position: relative;
    max-height: 450px;
    animation: cardSpawn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.kds-card-header {
    padding: 16px;
    background-color: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.kds-order-num { font-size: clamp(22px, 2vw, 32px); font-weight: 700; color: var(--brand-primary); }

.kds-timer { font-size: clamp(20px, 1.8vw, 28px); font-weight: 700; color: var(--text-secondary); text-align: right; }

.kds-timer.fresh {
    background-color: var(--accent-emerald-trans);
    color: var(--accent-emerald);
}

.kds-timer.warning {
    background-color: var(--accent-amber-trans);
    color: var(--accent-amber);
}

.kds-timer.critical {
    background-color: var(--accent-rose-trans);
    color: var(--accent-rose);
    animation: pulse 1s infinite alternate;
}

.kds-card-items {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.kds-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.kds-item-main { font-size: clamp(15px, 1.4vw, 22px); font-weight: 600; color: var(--text-primary); }

.kds-item-qty {
    color: var(--accent-emerald);
}

.kds-item-modifiers {
    font-size: 12px;
    color: var(--text-secondary);
    padding-left: 8px;
    border-left: 2px solid var(--border-color);
}

.kds-card-footer {
    padding: 16px;
    border-top: 1px solid var(--glass-border);
}

.kds-complete-btn {
    width: 100%;
    background-color: var(--accent-emerald);
    color: #fff;
    border: none;
    padding: 12px;
    border-radius: var(--border-radius);
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background var(--transition-speed);
}

.kds-complete-btn:hover {
    background-color: var(--accent-emerald-hover);
}

/* --- ADMIN / REPORTING DASHBOARD LAYOUT --- */
.admin-container {
    flex: 1;
    display: flex;
    overflow: hidden;
}

.admin-sidebar {
    width: 240px;
    flex-shrink: 0;
    background-color: var(--glass-bg);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    padding: 20px;
    gap: 8px;
    overflow-y: auto;
}

.admin-tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 12px 16px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    text-align: left;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all var(--transition-speed);
}

.admin-tab-btn:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.03);
}

.admin-tab-btn.active {
    color: var(--accent-emerald);
    background-color: var(--accent-emerald-trans);
}

.admin-main-panel {
    flex: 1;
    min-width: 0;
    padding: 32px;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Stats dashboard cards */
.admin-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.stat-card {
    background-color: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.stat-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.stat-val {
    font-size: 28px;
    font-weight: 800;
}

/* Table styling for records */
.data-table-wrapper {
    background-color: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    overflow-x: auto;
    box-shadow: var(--glass-shadow);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 14px;
}

.data-table th {
    background-color: rgba(255,255,255,0.02);
    border-bottom: 1px solid var(--glass-border);
    padding: 16px 20px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.5px;
}

.data-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover td {
    background-color: rgba(255, 255, 255, 0.01);
}

/* Forms & inputs */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.form-label {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
}

.form-input {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 14px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: border-color var(--transition-speed);
}

.form-input:focus {
    border-color: var(--accent-emerald);
}

.btn {
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-speed);
}

.btn-primary {
    background-color: var(--accent-emerald);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--accent-emerald-hover);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
}

.btn-danger {
    background-color: var(--accent-rose);
    color: #fff;
}

.btn-danger:hover {
    background-color: var(--accent-rose-hover);
}

/* --- ANIMATIONS --- */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes cardSpawn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {
    from {
        box-shadow: 0 0 2px var(--accent-rose);
    }
    to {
        box-shadow: 0 0 10px var(--accent-rose);
    }
}

/* --- RESPONSIVE LAYOUT & GLASSMORPHISM FIXES --- */

@media (max-width: 1024px) {
    .checkout-panel {
        width: 320px;
    }
}

@media (max-width: 768px) {
    .main-pos-container {
        flex-direction: column-reverse;
    }
    .checkout-panel {
        width: 100%;
        height: auto;
        min-height: 50vh;
        max-height: 60vh;
        border-right: none;
        border-top: 1px solid var(--glass-border);
    }
    .menu-panel {
        height: 50vh;
    }
}

.checkout-panel, .item-card, .admin-sidebar, .kds-card {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

button:active, .item-card:active {
    transform: scale(0.97) !important;
}

@keyframes textPulse {
    0% { color: var(--accent-emerald); transform: scale(1.1); }
    100% { color: inherit; transform: scale(1); }
}
.pulse-text {
    animation: textPulse 0.4s ease-out;
}

/* Accessibility & Utility Appends */
.nav-button, .category-tab, .close-modal-btn, .clear-cart-btn, select, .cart-item-delete, .pin-btn {
    min-height: var(--touch-min);
    min-width: var(--touch-min);
}

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

.modal-overlay {
    z-index: var(--modal-z, 100);
}

#pos-toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 99999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 12px 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--glass-shadow);
    transform: translateX(120%);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    font-weight: 500;
}
.toast.show { transform: translateX(0); }
.toast-success { border-left: 4px solid var(--brand-primary); }
.toast-error { border-left: 4px solid var(--brand-danger); }
.toast-info { border-left: 4px solid var(--brand-secondary); }

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
    body * { display: none; }
    #receipt-print, #receipt-print * { display: block; }
    body { margin: 0; padding: 10px; font-family: monospace; font-size: 12px; width: 80mm; }
}