/* ============================================================
   KITCHEN DISPLAY SYSTEM v3.0 — CSS
   ============================================================ */

:root {
    --kds-bg: #f0f2f5;
    --kds-card-bg: #ffffff;
    --kds-card-shadow: 0 2px 12px rgba(0,0,0,.10);
    --kds-topbar-bg: #1a1a2e;
    --kds-topbar-text: #e0e0e0;
    --kds-text: #1a1a2e;
    --kds-text-secondary: #555;
    --kds-border: #e0e0e0;
    --kds-metrics-bg: #ffffff;
    --kds-filter-bg: #ffffff;

    --kds-status-pending:          #9d5691;
    --kds-status-processing:       #3498db;
    --kds-status-cooking:          #01007f;
    --kds-status-waiting_delivery: #27ae60;
    --kds-status-on_route:         #f26323;
    --kds-status-completed:        #2ecc71;
    --kds-status-cancelled:        #e74c3c;
    --kds-status-on-hold:          #95a5a6;

    --kds-alert-color: #f39c12;
    --kds-urgent-color: #e74c3c;
    --kds-green: #27ae60;
    --kds-blue: #2980b9;
    --kds-radius: 12px;
    --kds-font: 'Segoe UI', system-ui, sans-serif;
}

.kds-dark {
    --kds-bg: #0d1117;
    --kds-card-bg: #161b22;
    --kds-card-shadow: 0 2px 16px rgba(0,0,0,.4);
    --kds-topbar-bg: #010409;
    --kds-text: #e6edf3;
    --kds-text-secondary: #8b949e;
    --kds-border: #30363d;
    --kds-metrics-bg: #161b22;
    --kds-filter-bg: #161b22;
}

/* ---- RESET ---- */
.kds-app * { box-sizing: border-box; }
.kds-app { font-family: var(--kds-font); background: var(--kds-bg); min-height: 100vh; color: var(--kds-text); }

/* ============================================================ TOPBAR */
.kds-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--kds-topbar-bg);
    color: var(--kds-topbar-text);
    padding: 0 20px;
    height: 54px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,.3);
}
.kds-logo { font-size: 18px; font-weight: 700; letter-spacing: .5px; }
.kds-station-badge {
    background: #3498db;
    color: #fff;
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 20px;
    margin-left: 10px;
}
.kds-clock { font-size: 20px; font-weight: 600; font-variant-numeric: tabular-nums; }
.kds-topbar-right { display: flex; align-items: center; gap: 10px; }
.kds-ws-badge {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
}
.kds-ws-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: currentColor;
    display: inline-block;
}
.kds-ws-connected    { background: #1a3a1a; color: #2ecc71; }
.kds-ws-connecting   { background: #3a2a00; color: #f39c12; animation: kds-pulse-dot .8s infinite; }
.kds-ws-disconnected { background: #3a0000; color: #e74c3c; }
.kds-count-badge {
    background: rgba(255,255,255,.1);
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 20px;
}
.kds-btn-icon {
    background: none;
    border: none;
    color: var(--kds-topbar-text);
    cursor: pointer;
    font-size: 18px;
    padding: 4px 8px;
    border-radius: 6px;
    transition: background .2s;
}
.kds-btn-icon:hover { background: rgba(255,255,255,.1); }

/* ============================================================ METRICS BAR */
.kds-metrics-bar {
    display: flex;
    gap: 2px;
    background: var(--kds-topbar-bg);
    padding: 0 20px 8px;
}
.kds-metric {
    background: rgba(255,255,255,.06);
    border-radius: 8px;
    padding: 6px 14px;
    min-width: 100px;
    text-align: center;
}
.kds-metric-label { display: block; font-size: 10px; color: #8b949e; text-transform: uppercase; }
.kds-metric-value { display: block; font-size: 20px; font-weight: 700; color: #e6edf3; }
.kds-metric-warn .kds-metric-value  { color: var(--kds-alert-color); }
.kds-metric-danger .kds-metric-value{ color: var(--kds-urgent-color); }

/* ============================================================ FILTER BAR */
.kds-filter-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    background: var(--kds-filter-bg);
    border-bottom: 1px solid var(--kds-border);
    flex-wrap: wrap;
}
.kds-filter-btn {
    padding: 5px 14px;
    border-radius: 20px;
    border: 1px solid var(--kds-border);
    background: transparent;
    color: var(--kds-text);
    cursor: pointer;
    font-size: 13px;
    transition: all .2s;
}
.kds-filter-btn:hover,
.kds-filter-btn.active {
    background: var(--kds-topbar-bg);
    color: #fff;
    border-color: transparent;
}
.kds-filter-sep { color: var(--kds-border); margin: 0 4px; }

/* ============================================================ GRID */
.kds-grid {
    display: grid;
    gap: 16px;
    padding: 16px 20px;
    grid-template-columns: repeat(3, 1fr);
    align-items: start;
}
.kds-grid[data-cols="1"] { grid-template-columns: 1fr; max-width: 480px; }
.kds-grid[data-cols="2"] { grid-template-columns: repeat(2, 1fr); }
.kds-grid[data-cols="3"] { grid-template-columns: repeat(3, 1fr); }
.kds-grid[data-cols="4"] { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 900px) { .kds-grid { grid-template-columns: repeat(2, 1fr) !important; } }
@media (max-width: 600px) { .kds-grid { grid-template-columns: 1fr !important; padding: 10px; } }

/* ============================================================ CARD */
.kds-card {
    background: var(--kds-card-bg);
    border-radius: var(--kds-radius);
    box-shadow: var(--kds-card-shadow);
    overflow: hidden;
    transition: transform .2s, box-shadow .2s;
    position: relative;
    border: 1px solid var(--kds-border);
}
.kds-card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,.15); }

/* Urgencia */
.kds-card-alert  { border-color: var(--kds-alert-color) !important; box-shadow: 0 0 0 2px var(--kds-alert-color), var(--kds-card-shadow) !important; }
.kds-card-urgent { border-color: var(--kds-urgent-color) !important; box-shadow: 0 0 0 2px var(--kds-urgent-color), var(--kds-card-shadow) !important; animation: kds-urgent-pulse 1.5s ease-in-out infinite; }

@keyframes kds-urgent-pulse {
    0%,100% { box-shadow: 0 0 0 2px var(--kds-urgent-color), var(--kds-card-shadow); }
    50%      { box-shadow: 0 0 0 6px rgba(231,76,60,.3), var(--kds-card-shadow); }
}

/* Barra de estado */
.kds-card-status-bar {
    height: 5px;
    width: 100%;
}
.kds-status-pending          { background: var(--kds-status-pending); }
.kds-status-processing       { background: var(--kds-status-processing); }
.kds-status-cooking          { background: var(--kds-status-cooking); }
.kds-status-waiting_delivery { background: var(--kds-status-waiting_delivery); }
.kds-status-on_route         { background: var(--kds-status-on_route); }
.kds-status-completed        { background: var(--kds-status-completed); }
.kds-status-cancelled        { background: var(--kds-status-cancelled); }
.kds-status-on-hold          { background: var(--kds-status-on-hold); }

/* Header */
.kds-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 12px 14px 6px;
}
.kds-order-number { font-size: 20px; font-weight: 800; color: var(--kds-text); }
.kds-station-tag {
    display: inline-block;
    background: #e8f4fd;
    color: #2980b9;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 10px;
    margin-left: 6px;
}
.kds-dark .kds-station-tag { background: #1a2a3a; color: #5dade2; }
.kds-timer-display {
    font-size: 16px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    background: var(--kds-bg);
    padding: 4px 10px;
    border-radius: 8px;
    color: var(--kds-text);
}
.kds-card-alert  .kds-timer-display { color: var(--kds-alert-color); background: rgba(243,156,18,.1); }
.kds-card-urgent .kds-timer-display { color: var(--kds-urgent-color); background: rgba(231,76,60,.1); }

/* Customer */
.kds-card-customer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 14px 8px;
}
.kds-customer-name { font-weight: 600; font-size: 14px; }
.kds-status-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; padding: 3px 8px; border-radius: 10px; }
.kds-status-tag-pending          { background: rgba(157,86,145,.15); color: #9d5691; }
.kds-status-tag-processing       { background: rgba(52,152,219,.15); color: #3498db; }
.kds-status-tag-cooking          { background: rgba(1,0,127,.1);    color: #01007f; }
.kds-status-tag-waiting_delivery { background: rgba(39,174,96,.15);  color: #27ae60; }
.kds-status-tag-on_route         { background: rgba(242,99,35,.15);  color: #f26323; }

/* Note */
.kds-card-note {
    margin: 0 14px 8px;
    padding: 8px 10px;
    background: #fff8e1;
    border-left: 3px solid #f39c12;
    border-radius: 0 6px 6px 0;
    font-size: 13px;
    color: #6d4c00;
}
.kds-dark .kds-card-note { background: #2a1e00; color: #f8d27a; }
.kds-note-icon { margin-right: 5px; }

/* Items */
.kds-items { padding: 8px 14px; border-top: 1px solid var(--kds-border); border-bottom: 1px solid var(--kds-border); }

.kds-item {
    margin: 4px 0;
    border-radius: 8px;
    transition: background .2s;
}
.kds-item-done { opacity: .7; }
.kds-item-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    cursor: pointer;
    border-radius: 8px;
    border: 1px solid transparent;
    transition: all .15s;
}
.kds-item-toggle:hover { background: rgba(0,0,0,.04); border-color: var(--kds-border); }
.kds-item-locked { cursor: not-allowed; opacity: .6; }
.kds-item-toggle input[type="checkbox"] { display: none; }
.kds-item-name { flex: 1; font-size: 15px; font-weight: 500; }
.kds-item-qty { font-weight: 700; color: var(--kds-text); background: var(--kds-bg); padding: 1px 7px; border-radius: 10px; font-size: 13px; }
.kds-item-done-icon { font-size: 18px; min-width: 24px; text-align: center; }
.kds-item:not(.kds-item-done) .kds-item-name { color: var(--kds-text); }
.kds-item.kds-item-done .kds-item-toggle { background: rgba(39,174,96,.08); border-color: rgba(39,174,96,.2); }

.kds-item-metas {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 2px 10px 6px 38px;
}
.kds-meta-tag {
    background: var(--kds-bg);
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 10px;
    color: var(--kds-text-secondary);
}

/* Footer */
.kds-card-footer { padding: 8px 14px; }
.kds-footer-info { display: flex; justify-content: space-between; align-items: center; }
.kds-total { font-weight: 700; font-size: 16px; }
.kds-prep-time { font-size: 12px; color: var(--kds-text-secondary); }

/* Actions */
.kds-card-actions {
    display: flex;
    gap: 6px;
    padding: 10px 14px 14px;
    flex-wrap: wrap;
}
.kds-btn {
    padding: 9px 14px;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
    flex: 1;
    min-width: 0;
    text-align: center;
}
.kds-btn:hover { filter: brightness(1.1); }
.kds-btn:disabled { opacity: .5; cursor: not-allowed; filter: none; }
.kds-btn-accept   { background: #27ae60; color: #fff; }
.kds-btn-reject   { background: #e74c3c; color: #fff; }
.kds-btn-ready    { background: #01007f; color: #fff; }
.kds-btn-dispatch { background: #f26323; color: #fff; }
.kds-btn-station  { background: var(--kds-bg); color: var(--kds-text); border: 1px solid var(--kds-border); flex: 0 0 auto; }
.kds-btn-disabled { background: #bdc3c7; color: #fff; }
.kds-btn-danger   { background: #e74c3c; color: #fff; }
.kds-btn-secondary{ background: var(--kds-bg); color: var(--kds-text); border: 1px solid var(--kds-border); }

/* ============================================================ MODAL */
.kds-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.6);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(3px);
}
.kds-modal {
    background: var(--kds-card-bg);
    border-radius: var(--kds-radius);
    padding: 28px;
    max-width: 480px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0,0,0,.3);
}
.kds-modal h3 { margin: 0 0 16px; font-size: 18px; }
.kds-modal textarea {
    width: 100%;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid var(--kds-border);
    background: var(--kds-bg);
    color: var(--kds-text);
    font-family: var(--kds-font);
    resize: vertical;
}
.kds-modal-actions { display: flex; gap: 10px; margin-top: 16px; }
.kds-station-options { display: flex; flex-wrap: wrap; gap: 8px; }
.kds-station-opt { flex: none; }

/* ============================================================ TOAST */
#kds-toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}
.kds-toast {
    background: #1a1a2e;
    color: #e0e0e0;
    padding: 12px 18px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 20px rgba(0,0,0,.3);
    animation: kds-toast-in .3s ease;
    pointer-events: all;
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 320px;
    border-left: 4px solid #3498db;
}
.kds-toast.kds-toast-success { border-left-color: #27ae60; }
.kds-toast.kds-toast-error   { border-left-color: #e74c3c; }
.kds-toast.kds-toast-warn    { border-left-color: #f39c12; }
@keyframes kds-toast-in { from { opacity:0; transform: translateX(20px); } to { opacity:1; transform:none; } }
@keyframes kds-toast-out{ from { opacity:1; transform:none; } to { opacity:0; transform: translateX(20px); } }

/* ============================================================ EMPTY */
.kds-empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
}
.kds-empty-icon { font-size: 64px; }
.kds-empty-text { font-size: 20px; font-weight: 600; color: var(--kds-text-secondary); margin-top: 10px; }

/* ============================================================ ANIMATIONS */
@keyframes kds-pulse-dot { 0%,100%{opacity:1} 50%{opacity:.4} }

.kds-card-enter {
    animation: kds-card-in .4s cubic-bezier(.34,1.56,.64,1);
}
@keyframes kds-card-in {
    from { opacity:0; transform: scale(.92) translateY(-10px); }
    to   { opacity:1; transform: none; }
}
.kds-card-exit {
    animation: kds-card-out .3s ease forwards;
}
@keyframes kds-card-out {
    to { opacity:0; transform: scale(.9); }
}