/* style.css (Professional POS - V8 - Consolidated) */

@import url('https://fonts.googleapis.com/css?family=Roboto:400,500,700&display=swap');

/* === CSS VARIABLES === */
:root {
    --font-main: 'Roboto', sans-serif;

    /* Backgrounds */
    --bg-body: #505050;         /* Darker main background (from your example) */
    --bg-panel: #454545;        /* Main panels (from your example) */
    --bg-header: #3a3a3a;       /* Top menu bar (from your example) */
    --bg-widget-dark: #3a3a3a;  /* For dark widgets like cart section */
    
    /* Light 3D Button (for Categories, + New Order) */
    --btn-light-bg-start: #e0e0e0;
    --btn-light-bg-end: #c8c8c8;
    --btn-light-shadow-dark: #353535;   /* Darker shadow part */
    --btn-light-shadow-light: #707070;  /* Lighter highlight part for panel */
    --btn-light-text: #222;             /* Dark text for light buttons */
    --btn-light-inset-highlight: rgba(255, 255, 255, 0.6);
    --btn-light-inset-shadow: rgba(0, 0, 0, 0.2);

    /* Dark 3D Button (for Items) */
    --btn-dark-bg-start: #5a5a5a;
    --btn-dark-bg-end: #404040;
    --btn-dark-shadow-dark: #2a2a2a;
    --btn-dark-shadow-light: #6a6a6a;
    --btn-dark-text: #e0e0e0;           /* Light text for dark buttons */
    --btn-dark-inset-highlight: rgba(255, 255, 255, 0.1);
    --btn-dark-inset-shadow: rgba(0, 0, 0, 0.5);

    /* Action/Checkout/Logout Button */
    --btn-action-bg-start: #d9534f;
    --btn-action-bg-end: #c9302c;
    --btn-action-text: white;
    --btn-action-shadow-dark: #a94442;
    --btn-action-shadow-light: #e46060;


    /* General Text & Borders */
    --text-on-dark-panel: #e0e0e0; /* Light text for dark panel backgrounds */
    --border-light: #555555;       /* For subtle borders on dark panels */
    --border-medium: #666;      /* Slightly more prominent border */
}

/* === Global Resets & Body === */
* { 
    box-sizing: border-box; 
    margin: 0;
    padding: 0;
}
html { 
    height: 100%; 
    font-size: 16px; /* Base font size */
}
body {
    display: flex; 
    flex-direction: column;
    font-family: var(--font-main);
    background-color: var(--bg-body);
    color: var(--text-on-dark-panel);
    min-height: 100vh; 
    line-height: 1.5;
}

/* === Reusable 3D Button Base Style === */
.btn-3d {
    border: none;
    cursor: pointer;
    font-weight: bold; /* As per your example */
    transition: all 0.15s ease-out;
    outline: none;
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

/* Light 3D Button Style (for Categories, + New Order) */
.btn-3d-light {
    background: linear-gradient(145deg, var(--btn-light-bg-start), var(--btn-light-bg-end));
    color: var(--btn-light-text);
    box-shadow: 5px 5px 10px var(--btn-light-shadow-dark), -3px -3px 8px var(--btn-light-shadow-light),
                inset 1px 1px 1px var(--btn-light-inset-highlight), inset -1px -1px 1px var(--btn-light-inset-shadow);
}
.btn-3d-light:hover {
    background: linear-gradient(145deg, #ebebeb, #d0d0d0); /* Slightly lighter on hover */
}
.btn-3d-light:active, .btn-3d-light.active { /* .active for selected state */
    background: linear-gradient(145deg, var(--btn-light-bg-end), var(--btn-light-bg-start)); /* Invert gradient */
    box-shadow: inset 3px 3px 6px var(--btn-light-shadow-dark), inset -2px -2px 5px var(--btn-light-shadow-light);
    transform: translateY(1px);
    color: #000; /* Darker text when pressed */
}

/* Dark 3D Button Style (for Items) */
.btn-3d-dark {
    background: linear-gradient(145deg, var(--btn-dark-bg-start), var(--btn-dark-bg-end));
    color: var(--btn-dark-text);
    box-shadow: 5px 5px 10px var(--btn-dark-shadow-dark), -3px -3px 8px var(--btn-dark-shadow-light),
                inset 1px 1px 1px var(--btn-dark-inset-highlight), inset -1px -1px 1px var(--btn-dark-inset-shadow);
}
.btn-3d-dark:hover {
    background: linear-gradient(145deg, #656565, #4a4a4a); /* Slightly lighter on hover */
}
.btn-3d-dark:active {
    background: linear-gradient(145deg, var(--btn-dark-bg-end), var(--btn-dark-bg-start));
    box-shadow: inset 3px 3px 6px var(--btn-dark-shadow-dark), inset -2px -2px 5px var(--btn-dark-shadow-light);
    transform: translateY(1px);
}

/* === Top Menu Bar === */
.menu {
    width: 100%; padding: 10px 20px;
    background: var(--bg-header);
    box-shadow: 0 2px 10px rgba(0,0,0,0.5);
    display: flex; justify-content: flex-start;
    gap: 10px; position: sticky; top: 0; z-index: 1000;
}
.menu button { /* General menu buttons, can use .btn-3d-dark style */
    padding: 8px 15px;
    font-size: 0.9rem;
    /* Apply dark 3D button style */
    border: none; cursor: pointer; font-weight: bold;
    transition: all 0.15s ease-out; outline: none;
    border-radius: 8px; display: flex; justify-content: center; align-items: center;
    background: linear-gradient(145deg, var(--btn-dark-bg-start), var(--btn-dark-bg-end));
    color: var(--btn-dark-text);
    box-shadow: 3px 3px 5px var(--btn-dark-shadow-dark), -2px -2px 4px var(--btn-dark-shadow-light);
}
.menu button:active {
    box-shadow: inset 2px 2px 4px var(--btn-dark-shadow-dark), inset -1px -1px 3px var(--btn-dark-shadow-light);
    transform: translateY(1px);
}
.menu button.logout {
    margin-left: auto;
    background: linear-gradient(145deg, var(--btn-action-bg-start), var(--btn-action-bg-end));
    color: var(--btn-action-text);
    box-shadow: 3px 3px 5px var(--btn-action-shadow-dark), -2px -2px 4px var(--btn-action-shadow-light);
}
.menu button.logout:active {
     box-shadow: inset 2px 2px 4px var(--btn-action-shadow-dark), inset -1px -1px 3px var(--btn-action-shadow-light);
}


/* === Main POS Canvas & Grid Layout === */
#canvas {
    width: 100%; padding: 20px; flex-grow: 1; display: flex; justify-content: center;
}
.pos-interface {
    width: 100%; max-width: 1400px;
    display: grid; grid-template-columns: 1fr 400px; gap: 20px;
}

/* === Main POS Area (Categories + Items) === */
.main-pos-area {
    display: flex; flex-direction: column; gap: 20px; /* Increased gap slightly */
    background-color: var(--bg-panel);
    padding: 25px; border-radius: 15px;
    box-shadow: inset 0 0 10px rgba(0,0,0,0.3), 0 5px 15px rgba(0,0,0,0.2);
}
.category-row {
    display: flex; flex-wrap: wrap; gap: 12px;
    padding-bottom: 20px; border-bottom: 1px solid var(--border-light);
}
.category-button {
    /* Uses .btn-3d-light style by default */
    padding: 8px 15px; font-size: 0.9rem;
    width: 160px; height: 45px;
    /* Apply light 3D button style */
    border: none; cursor: pointer; font-weight: bold;
    transition: all 0.15s ease-out; outline: none;
    border-radius: 8px; display: flex; justify-content: center; align-items: center; text-align: center;
    background: linear-gradient(145deg, var(--btn-light-bg-start), var(--btn-light-bg-end));
    color: var(--btn-light-text);
    box-shadow: 5px 5px 10px var(--btn-light-shadow-dark), -3px -3px 8px var(--btn-light-shadow-light),
                inset 1px 1px 1px var(--btn-light-inset-highlight), inset -1px -1px 1px var(--btn-light-inset-shadow);
}
.category-button:hover { /* Re-add specific hover if needed, or rely on general .btn-3d-light:hover */
    background: linear-gradient(145deg, #ebebeb, #d0d0d0);
}
.category-button.active, .category-button:active { /* Active state for selected category */
    background: linear-gradient(145deg, var(--btn-light-bg-end), var(--btn-light-bg-start));
    box-shadow: inset 3px 3px 6px var(--btn-light-shadow-dark), inset -2px -2px 5px var(--btn-light-shadow-light);
    transform: translateY(1px);
    color: #000;
}

/* Item Display & Buttons */
.item-display {
    flex-grow: 1; overflow-y: auto; padding-right: 10px; /* For scrollbar */
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 180px)); /* Max width for item buttons */
    gap: 15px; align-content: start;
}
.item-button {
    /* Uses .btn-3d-dark style by default */
    min-height: 70px; padding: 8px; line-height: 1.25;
    word-break: break-word; font-size: 0.9rem;
    flex-direction: column;
    /* Apply dark 3D button style */
    border: none; cursor: pointer; font-weight: bold;
    transition: all 0.15s ease-out; outline: none;
    border-radius: 8px; display: flex; justify-content: center; align-items: center; text-align: center;
    background: linear-gradient(145deg, var(--btn-dark-bg-start), var(--btn-dark-bg-end));
    color: var(--btn-dark-text);
    box-shadow: 5px 5px 10px var(--btn-dark-shadow-dark), -3px -3px 8px var(--btn-dark-shadow-light),
                inset 1px 1px 1px var(--btn-dark-inset-highlight), inset -1px -1px 1px var(--btn-dark-inset-shadow);
}
.item-button:hover { /* Re-add specific hover if needed */
    background: linear-gradient(145deg, #656565, #4a4a4a);
}
.item-button:active {
    background: linear-gradient(145deg, var(--btn-dark-bg-end), var(--btn-dark-bg-start));
    box-shadow: inset 3px 3px 6px var(--btn-dark-shadow-dark), inset -2px -2px 5px var(--btn-dark-shadow-light);
    transform: translateY(1px);
}
.item-button .price { font-weight: normal; font-size: 0.85em; margin-top: 4px; color: #b0b0b0; }

/* === Order Container (Right Sidebar) === */
.order-container {
    background-color: var(--bg-panel); border-radius: 15px;
    box-shadow: inset 0 0 10px rgba(0,0,0,0.3), 0 5px 15px rgba(0,0,0,0.2);
    padding: 25px; display: flex; flex-direction: column;
    max-height: calc(100vh - 100px); /* Adjusted for menu and padding */
}
.order-header {
    display: flex; align-items: center; margin-bottom: 15px; padding-bottom: 15px;
    border-bottom: 1px solid var(--border-light);
}
.order-header img { max-height: 50px; margin-right: 15px; border-radius: 4px; background-color: #ddd; }
.company-details strong { color: var(--text-on-dark-panel); font-size: 1.1em; }
.company-details p { margin: 2px 0; font-size: 0.85rem; color: #b0b0b0; }

/* Open Orders Section */
.open-orders-section { 
    padding-bottom: 15px; margin-bottom: 15px; 
    border-bottom: 1px solid var(--border-light); 
}
.open-orders-section h4 { margin-bottom: 10px; }
.open-orders-list { 
    max-height: 150px; overflow-y: auto; display: flex; 
    flex-direction: column; gap: 8px; /* Increased gap */
    background: var(--bg-widget-dark); padding: 10px; border-radius: 6px; 
}
.open-order-btn { 
    display: flex; justify-content: space-between; align-items: center;
    padding: 10px; border-radius: 6px; cursor: pointer; 
    border: 1px solid transparent; /* For hover/active states */
    transition: background-color 0.2s, border-color 0.2s;
    font-size: 0.9rem;
}
.open-order-btn span { flex-grow: 1; }
.open-order-btn strong { margin-left: 10px; }
.open-order-btn.status-normal { background-color: #4e555f; border-color: #40464f; }
.open-order-btn.status-normal:hover { background-color: #5a636e; }
.open-order-btn.status-active { background-color: #3498db; color: white; border-color: #2980b9; }
.open-order-btn.status-pending-print { background-color: #8e44ad; color: white; border-color: #732d91; cursor: not-allowed; }

#newOrderBtn { /* For the "+ New Order" button */
    /* Uses .btn-3d-light style */
    padding: 10px 15px !important; /* Ensure padding */
    height: 45px !important; /* Ensure height */
    font-size: 0.9rem !important;
    /* Apply light 3D button style */
    border: none; cursor: pointer; font-weight: bold;
    transition: all 0.15s ease-out; outline: none;
    border-radius: 8px; display: flex; justify-content: center; align-items: center; text-align: center;
    background: linear-gradient(145deg, var(--btn-light-bg-start), var(--btn-light-bg-end));
    color: var(--btn-light-text);
    box-shadow: 5px 5px 10px var(--btn-light-shadow-dark), -3px -3px 8px var(--btn-light-shadow-light),
                inset 1px 1px 1px var(--btn-light-inset-highlight), inset -1px -1px 1px var(--btn-light-inset-shadow);
}
#newOrderBtn:hover { background: linear-gradient(145deg, #ebebeb, #d0d0d0); }
#newOrderBtn:active {
    background: linear-gradient(145deg, var(--btn-light-bg-end), var(--btn-light-bg-start));
    box-shadow: inset 3px 3px 6px var(--btn-light-shadow-dark), inset -2px -2px 5px var(--btn-light-shadow-light);
    transform: translateY(1px); color: #000;
}
#newOrderBtn:disabled {
    opacity: 0.6; cursor: not-allowed !important;
    box-shadow: 2px 2px 4px var(--btn-light-shadow-dark), -1px -1px 3px var(--btn-light-shadow-light); /* Reduced shadow */
}


/* Cart Section and Table */
.cart-section {
    flex-grow: 1; overflow-y: auto; margin-top: 15px; /* Added margin-top */
    border: 1px solid var(--border-light); border-radius: 8px;
    background: var(--bg-widget-dark);
}
#cart-table { 
    width: 100%; 
    border-collapse: collapse; 
}
#cart-table th, #cart-table td {
    padding: 10px 8px;
    border-bottom: 1px solid var(--border-light);
    text-align: left; 
    font-size: 0.9rem;
    vertical-align: middle;
}
#cart-table th { 
    background-color: #404040; 
    position: sticky; 
    top: 0; 
    font-weight: bold;
}

/* Column Specific Styling for Cart Table */
#cart-table th.item-col, #cart-table td.item-col {
    padding-left: 12px;
    overflow-wrap: break-word; word-wrap: break-word; hyphens: auto;
}
#cart-table th.qty-col, #cart-table td.qty-col { width: 105px; min-width: 105px; text-align: center; }
#cart-table th.price-col, #cart-table td.price-col { width: 80px; min-width: 80px; text-align: right; }
#cart-table th.total-col, #cart-table td.total-col { width: 90px; min-width: 90px; text-align: right; }
#cart-table th.action-col, #cart-table td.action-col { width: 60px; min-width: 60px; text-align: center; }

/* Quantity Spinner Styles */
.qty-spinner {
  display: inline-flex; align-items: center;
  border: 1px solid var(--border-medium); border-radius: 4px; overflow: hidden;
}
.qty-spinner .spin-btn {
  width: 28px; height: 28px; border: none;
  background-color: #505050; color: white; font-size: 1.1em; font-weight: bold;
  cursor: pointer; line-height: 1; padding: 0; transition: background-color 0.2s;
}
.qty-spinner .spin-btn:hover { background-color: #656565; }
.qty-spinner .spin-btn:active { background-color: #404040; }
.qty-spinner input.cart-qty-input { 
  width: 35px; height: 28px; text-align: center; padding: 5px 2px;
  border: none; border-left: 1px solid var(--border-medium); border-right: 1px solid var(--border-medium);
  background-color: #555; color: white; font-size: 0.9rem; border-radius: 0; margin: 0; 
  -moz-appearance: textfield; 
}
.qty-spinner input.cart-qty-input::-webkit-outer-spin-button,
.qty-spinner input.cart-qty-input::-webkit-inner-spin-button {
  -webkit-appearance: none; margin: 0;
}
.remove-item { 
    color: var(--btn-action-bg-start); text-decoration: none; font-weight: bold; 
    font-size: 1.3em; padding: 2px 5px; display: inline-block;
}
.remove-item:hover { color: #c9302c; }

/* Order Summary & Action Button */
.order-summary {
    margin-top: auto; padding-top: 15px;
    border-top: 2px solid var(--border-light);
    text-align: right; font-size: 1.2rem; font-weight: bold;
}
.action-buttons .commit {
    width: 100%; border: none; cursor: pointer; padding: 15px; font-size: 1.1rem;
    border-radius: 8px; color: white; margin-top: 15px;
    background: linear-gradient(145deg, var(--btn-action-bg-start), var(--btn-action-bg-end));
    box-shadow: 3px 3px 5px var(--btn-action-shadow-dark), -2px -2px 4px var(--btn-action-shadow-light);
}
.action-buttons .commit:active {
    box-shadow: inset 2px 2px 4px var(--btn-action-shadow-dark), inset -1px -1px 3px var(--btn-action-shadow-light);
    transform: translateY(1px);
}
.action-buttons .commit:disabled {
    background: #777; opacity: 0.7; cursor: not-allowed;
    box-shadow: 2px 2px 4px #555;
}


/* === RESPONSIVE STYLES === */
@media (max-width: 950px) { /* Tablet and below */
    .pos-interface { 
        grid-template-columns: 1fr; /* Stack main area and order container */
        gap: 15px;
    }
    .main-pos-area { padding: 15px; }
    .order-container { 
        max-height: none; /* Allow order container to grow */
        padding: 15px;
    }
    .item-display { grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); }
    .category-row { justify-content: center; } /* Center category buttons on mobile */
}
@media (max-width: 600px) { /* Mobile specific */
    #canvas { padding: 10px; }
    .menu { padding: 8px 10px; }
    .menu button { padding: 6px 10px; font-size: 0.85rem; }
    .item-display { grid-template-columns: repeat(auto-fit, minmax(100px, 1fr)); gap: 10px;}
    .item-button { min-height: 60px; font-size: 0.85rem; }
    .category-button { width: auto; flex-grow: 1; max-width: 150px; } /* Allow category buttons to take more space */
    #cart-table th, #cart-table td { font-size: 0.85rem; padding: 6px 4px; }
    #cart-table th.qty-col, #cart-table td.qty-col { width: 85px; min-width: 85px; }
    .qty-spinner input.cart-qty-input { width: 30px; }
    .qty-spinner .spin-btn { width: 25px; height: 25px; font-size: 1em; }
    .order-summary { font-size: 1.1rem; }
    .action-buttons .commit { font-size: 1rem; padding: 12px; }
}