/* ============================================================
   BEVERAGE INVENTORY v4 - style.css
   Cloudflare Pages version - không có banner Google
   ============================================================ */

:root {
  --primary:#0ea5e9; --primary-dark:#0284c7; --secondary:#7c3aed;
  --success:#10b981; --warning:#f59e0b; --danger:#ef4444;
  --bg:#f0f4f8; --bg-card:#ffffff; --bg-sidebar:#0f172a;
  --bg-sidebar-hover:#1e293b; --text:#1e293b; --text-muted:#64748b;
  --text-sidebar:#cbd5e1; --border:#e2e8f0;
  --shadow:0 4px 24px rgba(0,0,0,.08); --shadow-md:0 8px 32px rgba(0,0,0,.12);
  --radius:16px; --radius-sm:10px; --tr:.25s cubic-bezier(.4,0,.2,1);
}
.dark-mode {
  --bg:#0f172a; --bg-card:#1e293b; --bg-sidebar:#020617;
  --bg-sidebar-hover:#0f172a; --text:#f1f5f9; --text-muted:#94a3b8;
  --border:#334155; --shadow:0 4px 24px rgba(0,0,0,.3);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:'Plus Jakarta Sans',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden;transition:background var(--tr),color var(--tr)}
button{cursor:pointer;border:none;outline:none;font-family:inherit}
input,select,textarea{font-family:inherit;font-size:.95rem;border:1.5px solid var(--border);background:var(--bg);color:var(--text);border-radius:var(--radius-sm);padding:10px 14px;width:100%;outline:none;transition:border-color var(--tr),box-shadow var(--tr)}
input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,165,233,.15)}
textarea{resize:vertical;min-height:70px}

/* ====== LOGIN ====== */
.login-screen{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f172a 0%,#1e3a5f 50%,#0ea5e9 100%);padding:20px}
.login-card{background:rgba(255,255,255,.07);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.15);border-radius:24px;padding:40px 36px;width:100%;max-width:400px;box-shadow:0 24px 60px rgba(0,0,0,.4);animation:slideUp .6s ease}
@keyframes slideUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.login-logo{text-align:center;margin-bottom:28px}
.logo-icon{width:72px;height:72px;border-radius:20px;background:linear-gradient(135deg,#0ea5e9,#7c3aed);display:inline-flex;align-items:center;justify-content:center;font-size:32px;color:#fff;box-shadow:0 8px 24px rgba(14,165,233,.4);margin-bottom:14px}
.login-logo h1{font-family:'Nunito',sans-serif;font-size:1.8rem;font-weight:900;color:#fff}
.login-logo p{color:rgba(255,255,255,.6);font-size:.85rem;margin-top:4px}
.input-group{position:relative;margin-bottom:14px;display:flex;align-items:center}
.input-group i{position:absolute;left:14px;color:rgba(255,255,255,.5);font-size:.9rem;z-index:1}
.input-group input{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#fff;padding:13px 44px;border-radius:12px}
.input-group input::placeholder{color:rgba(255,255,255,.4)}
.input-group input:focus{border-color:#0ea5e9;background:rgba(255,255,255,.15);box-shadow:none}
.toggle-pw{position:absolute;right:14px;background:none;color:rgba(255,255,255,.5);font-size:.9rem}
.btn-login{width:100%;padding:14px;margin-top:8px;background:linear-gradient(135deg,#0ea5e9,#7c3aed);color:#fff;border-radius:12px;font-size:1rem;font-weight:700;display:flex;align-items:center;justify-content:center;gap:10px;transition:transform var(--tr),box-shadow var(--tr);box-shadow:0 4px 16px rgba(14,165,233,.4)}
.btn-login:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(14,165,233,.5)}
.login-error{color:#fca5a5;text-align:center;font-size:.88rem;margin-top:10px;min-height:20px}
.login-hint{text-align:center;margin-top:14px;color:rgba(255,255,255,.4)}

/* ====== LAYOUT ====== */
.app-container{display:flex;height:100vh;overflow:hidden}

/* SIDEBAR */
.sidebar{width:260px;flex-shrink:0;background:var(--bg-sidebar);display:flex;flex-direction:column;z-index:100;transition:transform var(--tr);box-shadow:4px 0 24px rgba(0,0,0,.2)}
.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:20px 20px 16px;border-bottom:1px solid rgba(255,255,255,.08)}
.sidebar-logo{display:flex;align-items:center;gap:10px;font-family:'Nunito',sans-serif;font-size:1.3rem;font-weight:900;color:#fff}
.sidebar-logo i{font-size:1.4rem;color:var(--primary)}
.sidebar-close{background:none;color:var(--text-sidebar);font-size:1.1rem;display:none;padding:4px}
.sidebar-user{display:flex;align-items:center;gap:12px;padding:14px 18px;margin:8px 12px;background:rgba(255,255,255,.06);border-radius:12px}
.user-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#0ea5e9,#7c3aed);display:flex;align-items:center;justify-content:center;color:#fff;font-size:1rem;flex-shrink:0}
.user-info{display:flex;flex-direction:column}
.user-info span:first-child{color:#fff;font-weight:700;font-size:.9rem}
.user-role{color:var(--primary);font-size:.75rem;font-weight:600;margin-top:2px}
.sidebar-nav{flex:1;padding:8px 12px;overflow-y:auto}
.nav-item{display:flex;align-items:center;gap:12px;width:100%;padding:11px 14px;margin-bottom:3px;border-radius:10px;color:var(--text-sidebar);font-size:.9rem;font-weight:600;background:none;transition:all var(--tr);text-align:left}
.nav-item i{width:20px;text-align:center;font-size:1rem}
.nav-item:hover{background:var(--bg-sidebar-hover);color:#fff}
.nav-item.active{background:linear-gradient(135deg,#0ea5e9,#7c3aed);color:#fff;box-shadow:0 4px 12px rgba(14,165,233,.3)}
.sidebar-footer{padding:12px;border-top:1px solid rgba(255,255,255,.08)}
.btn-darkmode,.btn-logout{display:flex;align-items:center;gap:10px;width:100%;padding:10px 14px;border-radius:10px;color:var(--text-sidebar);font-size:.88rem;font-weight:600;background:none;transition:all var(--tr);margin-bottom:4px}
.btn-darkmode:hover{background:rgba(255,255,255,.08);color:#fff}
.btn-logout:hover{background:rgba(239,68,68,.15);color:#ef4444}
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:99;backdrop-filter:blur(3px)}

/* MAIN */
.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden;min-width:0}
.topbar{display:flex;align-items:center;gap:12px;padding:12px 20px;background:var(--bg-card);border-bottom:1px solid var(--border);box-shadow:var(--shadow);z-index:10;flex-shrink:0}
.menu-toggle{background:none;color:var(--text);font-size:1.2rem;padding:6px;display:none}
.topbar-title{flex:1;font-family:'Nunito',sans-serif;font-weight:800;font-size:1.1rem}
.topbar-actions{display:flex;gap:8px}
.topbar-btn{width:38px;height:38px;border-radius:10px;background:var(--bg);color:var(--text);font-size:1rem;display:flex;align-items:center;justify-content:center;transition:all var(--tr)}
.topbar-btn:hover{background:var(--primary);color:#fff}

/* PAGE */
.page-content{flex:1;overflow-y:auto;padding:20px}
.page{display:none;animation:fadeIn .3s ease}
.page.active{display:block}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

/* ====== CARDS ====== */
.card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;border:1px solid var(--border);margin-bottom:16px}
.form-card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;border:1px solid var(--border);margin-bottom:16px}
.form-title{font-family:'Nunito',sans-serif;font-weight:800;font-size:1.1rem;margin-bottom:20px;display:flex;align-items:center;gap:8px;color:var(--primary)}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border)}
.card-header h3{font-family:'Nunito',sans-serif;font-weight:800;font-size:1rem;display:flex;align-items:center;gap:8px}
.mt-16{margin-top:16px}

/* ====== STATS ====== */
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:16px}
.stat-card{border-radius:var(--radius);padding:18px;display:flex;align-items:center;gap:14px;cursor:pointer;transition:transform var(--tr),box-shadow var(--tr);position:relative;overflow:hidden}
.stat-card::before{content:'';position:absolute;right:-20px;top:-20px;width:80px;height:80px;border-radius:50%;background:rgba(255,255,255,.1)}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.stat-card.blue{background:linear-gradient(135deg,#0ea5e9,#0284c7);color:#fff}
.stat-card.orange{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff}
.stat-card.green{background:linear-gradient(135deg,#10b981,#059669);color:#fff}
.stat-card.purple{background:linear-gradient(135deg,#7c3aed,#6d28d9);color:#fff}
.stat-icon{font-size:1.6rem;opacity:.9}
.stat-value{font-family:'Nunito',sans-serif;font-size:clamp(1rem,3vw,1.4rem);font-weight:900;line-height:1;word-break:break-all}
.stat-label{font-size:.75rem;opacity:.85;margin-top:4px;font-weight:600}

/* ====== DASHBOARD ====== */
.dashboard-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.chart-card{background:var(--bg-card);border-radius:var(--radius);padding:18px;border:1px solid var(--border);box-shadow:var(--shadow)}
.chart-card h3{font-family:'Nunito',sans-serif;font-weight:800;font-size:.92rem;display:flex;align-items:center;gap:8px;margin-bottom:12px}
.top-products{display:flex;flex-direction:column}
.top-product-item{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--border)}
.top-product-item:last-child{border-bottom:none}
.top-rank{width:26px;height:26px;border-radius:50%;color:#fff;font-size:.72rem;font-weight:900;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.top-rank.r1{background:linear-gradient(135deg,#f59e0b,#d97706)}
.top-rank.r2{background:linear-gradient(135deg,#94a3b8,#64748b)}
.top-rank.r3{background:linear-gradient(135deg,#c2814e,#a06040)}
.top-rank.r4,.top-rank.r5{background:linear-gradient(135deg,#0ea5e9,#0284c7)}
.top-name{flex:1;font-size:.85rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top-qty{font-size:.85rem;font-weight:800;color:var(--primary);flex-shrink:0}
.low-stock-list{display:flex;flex-direction:column;gap:8px;min-height:40px}
.low-stock-item{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-radius:10px;background:rgba(239,68,68,.06);border:1px solid rgba(239,68,68,.15)}
.low-stock-item .name{font-weight:600;font-size:.88rem}
.low-stock-badge{background:#ef4444;color:#fff;font-size:.75rem;font-weight:700;padding:3px 10px;border-radius:20px;white-space:nowrap;flex-shrink:0}

/* ====== PRODUCTS ====== */
.page-actions{display:flex;gap:10px;margin-bottom:14px;align-items:center}
.search-bar{flex:1;display:flex;align-items:center;background:var(--bg-card);border:1.5px solid var(--border);border-radius:12px;padding:0 14px;gap:10px;transition:border-color var(--tr)}
.search-bar:focus-within{border-color:var(--primary)}
.search-bar i{color:var(--text-muted);flex-shrink:0}
.search-bar input{border:none;background:none;padding:11px 0}
.search-bar input:focus{box-shadow:none}
.filter-chips{display:flex;gap:8px;margin-bottom:16px;overflow-x:auto;padding-bottom:4px}
.filter-chips::-webkit-scrollbar{display:none}
.chip{padding:6px 16px;border-radius:20px;font-size:.82rem;font-weight:700;background:var(--bg-card);border:1.5px solid var(--border);color:var(--text-muted);white-space:nowrap;transition:all var(--tr)}
.chip.active{background:var(--primary);border-color:var(--primary);color:#fff}
.chip:hover{border-color:var(--primary);color:var(--primary)}
.product-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.product-card{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);overflow:hidden;box-shadow:var(--shadow);transition:transform var(--tr),box-shadow var(--tr)}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.product-img{width:100%;height:120px;overflow:hidden;background:linear-gradient(135deg,#f0f4f8,#e2e8f0);display:flex;align-items:center;justify-content:center;font-size:2.8rem;flex-shrink:0;position:relative}
.dark-mode .product-img{background:linear-gradient(135deg,#1e293b,#334155)}
.product-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}
.product-img span{line-height:1}
.product-info{padding:10px 12px 6px}
.product-name{font-weight:700;font-size:.88rem;margin-bottom:3px;line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.product-cat{font-size:.75rem;color:var(--text-muted);margin-bottom:5px}
.product-price{font-size:.9rem;font-weight:800;color:var(--success)}
.product-stock{display:flex;gap:6px;margin-top:6px;flex-wrap:wrap}
.stock-badge{font-size:.72rem;font-weight:700;padding:2px 8px;border-radius:20px}
.stock-badge.warehouse{background:rgba(14,165,233,.1);color:var(--primary)}
.stock-badge.cabinet{background:rgba(124,58,237,.1);color:var(--secondary)}
.stock-badge.low{background:rgba(239,68,68,.1);color:var(--danger)}
.product-actions{display:flex;gap:6px;padding:8px 12px 12px}
.btn-action{flex:1;padding:7px;border-radius:8px;font-size:.8rem;font-weight:700;transition:all var(--tr)}
.btn-action.edit{background:rgba(14,165,233,.1);color:var(--primary)}
.btn-action.edit:hover{background:var(--primary);color:#fff}
.btn-action.sell{background:rgba(16,185,129,.1);color:var(--success)}
.btn-action.sell:hover{background:var(--success);color:#fff}
.btn-action.del{background:rgba(239,68,68,.1);color:var(--danger)}
.btn-action.del:hover{background:var(--danger);color:#fff}

/* ====== FORMS ====== */
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:.82rem;font-weight:700;margin-bottom:6px;color:var(--text-muted)}
.req{color:var(--danger)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.file-upload{border:2px dashed var(--border);border-radius:var(--radius-sm);padding:18px;text-align:center;cursor:pointer;transition:all var(--tr);color:var(--text-muted);display:flex;align-items:center;justify-content:center;gap:10px}
.file-upload:hover{border-color:var(--primary);color:var(--primary);background:rgba(14,165,233,.05)}
.file-upload i{font-size:1.4rem}

/* ====== BUTTONS ====== */
.btn-primary{background:linear-gradient(135deg,#0ea5e9,#0284c7);color:#fff;border-radius:12px;padding:11px 20px;font-size:.9rem;font-weight:700;display:inline-flex;align-items:center;gap:8px;transition:transform var(--tr),box-shadow var(--tr);box-shadow:0 4px 12px rgba(14,165,233,.3);white-space:nowrap}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(14,165,233,.4)}
.btn-full{width:100%;justify-content:center;padding:14px;font-size:1rem}
.btn-ghost{background:var(--bg);color:var(--text);border:1.5px solid var(--border);border-radius:12px;padding:11px 20px;font-size:.9rem;font-weight:700;transition:all var(--tr)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-sm{background:rgba(14,165,233,.1);color:var(--primary);border-radius:8px;padding:6px 12px;font-size:.8rem;font-weight:700;transition:all var(--tr)}
.btn-sm:hover{background:var(--primary);color:#fff}

/* ====== SALE ====== */
.sale-total-box{background:linear-gradient(135deg,#10b981,#059669);color:#fff;border-radius:14px;padding:14px 20px;display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;font-weight:700}
.sale-total-box strong{font-size:1.4rem;font-family:'Nunito',sans-serif;font-weight:900}

/* ====== GIFT ====== */
.gift-type-tabs{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}
.gift-tab{flex:1;min-width:65px;padding:10px 6px;border-radius:12px;font-size:.78rem;font-weight:700;text-align:center;background:var(--bg);border:1.5px solid var(--border);color:var(--text-muted);transition:all var(--tr);display:flex;align-items:center;justify-content:center;gap:4px;flex-direction:column}
.gift-tab i{font-size:.95rem}
.gift-tab.active{border-color:var(--primary);background:rgba(14,165,233,.1);color:var(--primary);box-shadow:0 2px 8px rgba(14,165,233,.2)}

/* ====== CABINET ====== */
.cabinet-header{display:flex;align-items:center;gap:16px;background:linear-gradient(135deg,#7c3aed,#6d28d9);color:#fff;border-radius:var(--radius);padding:20px;margin-bottom:16px}
.cabinet-icon{font-size:2.2rem}
.cabinet-header h2{font-family:'Nunito',sans-serif;font-weight:900;font-size:1.2rem}
.cabinet-header p{font-size:.82rem;opacity:.8;margin-top:2px}
.transfer-btns{display:flex;gap:10px;margin-top:10px}
.btn-transfer{flex:1;padding:13px;border-radius:12px;font-size:.9rem;font-weight:700;background:linear-gradient(135deg,#0ea5e9,#0284c7);color:#fff;display:flex;align-items:center;justify-content:center;gap:8px;transition:all var(--tr);box-shadow:0 4px 12px rgba(14,165,233,.3)}
.btn-transfer:hover{transform:translateY(-2px)}
.btn-transfer.secondary{background:linear-gradient(135deg,#7c3aed,#6d28d9);box-shadow:0 4px 12px rgba(124,58,237,.3)}

/* ====== REPORT ====== */
.report-filter{display:flex;gap:10px;align-items:flex-end;background:var(--bg-card);border-radius:var(--radius);padding:16px;margin-bottom:16px;border:1px solid var(--border);box-shadow:var(--shadow);flex-wrap:wrap}
.report-filter .form-group{flex:1;min-width:120px;margin:0}
.report-filter .btn-primary{align-self:flex-end;flex-shrink:0}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-size:.83rem;min-width:480px}
th{background:var(--bg);font-weight:700;padding:10px;text-align:left;font-size:.75rem;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);border-bottom:2px solid var(--border);white-space:nowrap}
td{padding:10px;border-bottom:1px solid var(--border);vertical-align:middle}
tr:last-child td{border-bottom:none}
tr:hover td{background:rgba(14,165,233,.04)}

/* ====== HISTORY ====== */
.history-tabs{display:flex;gap:6px;background:var(--bg-card);border-radius:14px;padding:5px;border:1px solid var(--border);margin-bottom:4px}
.h-tab{flex:1;padding:9px 6px;border-radius:10px;font-size:.82rem;font-weight:700;background:none;color:var(--text-muted);transition:all var(--tr);display:flex;align-items:center;justify-content:center;gap:6px}
.h-tab i{font-size:.85rem}
.h-tab.active{background:var(--primary);color:#fff;box-shadow:0 3px 10px rgba(14,165,233,.3)}
.history-list{display:flex;flex-direction:column;gap:8px}
.history-item{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:12px 14px;display:flex;justify-content:space-between;align-items:flex-start;gap:10px;transition:box-shadow var(--tr)}
.history-item:hover{box-shadow:var(--shadow)}
.history-item-left{flex:1;min-width:0}
.history-item-name{font-weight:700;font-size:.9rem;margin-bottom:5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.history-item-meta{font-size:.75rem;color:var(--text-muted);display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.history-item-meta span{display:flex;align-items:center;gap:3px}
.history-item-right{text-align:right;flex-shrink:0}
.history-qty{font-family:'Nunito',sans-serif;font-weight:900;font-size:1.1rem;line-height:1.2}
.history-amount{font-size:.78rem;color:var(--success);font-weight:700;margin-top:2px}

/* ====== MODAL ====== */
.modal-overlay{display:none;position:fixed;inset:0;z-index:200;background:rgba(0,0,0,.5);backdrop-filter:blur(4px);align-items:flex-end;justify-content:center}
.modal-overlay.active{display:flex}
.modal{background:var(--bg-card);border-radius:24px 24px 0 0;width:100%;max-width:540px;max-height:92vh;display:flex;flex-direction:column;animation:slideUpModal .3s ease;box-shadow:0 -8px 40px rgba(0,0,0,.2)}
@keyframes slideUpModal{from{transform:translateY(100%)}to{transform:translateY(0)}}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px 0}
.modal-header h3{font-family:'Nunito',sans-serif;font-weight:800;font-size:1.1rem}
.modal-header button{background:var(--bg);border-radius:50%;width:34px;height:34px;display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:1rem;transition:all var(--tr)}
.modal-header button:hover{background:var(--danger);color:#fff}
.modal-body{flex:1;overflow-y:auto;padding:20px 24px}
.modal-footer{padding:16px 24px;border-top:1px solid var(--border);display:flex;gap:10px}
.modal-footer .btn-primary,.modal-footer .btn-ghost{flex:1;justify-content:center}
.product-image-upload{text-align:center;margin-bottom:16px}
.image-placeholder{width:100px;height:100px;border-radius:16px;background:var(--bg);border:2px dashed var(--border);display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;cursor:pointer;color:var(--text-muted);font-size:.78rem;transition:all var(--tr)}
.image-placeholder i{font-size:1.6rem}
.image-placeholder:hover{border-color:var(--primary);color:var(--primary)}
#productImagePreview{width:100px;height:100px;border-radius:16px;object-fit:cover;cursor:pointer;display:block;margin:0 auto}

/* ====== TOAST & LOADING ====== */
.toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);z-index:9999;padding:12px 20px;border-radius:40px;font-weight:700;font-size:.88rem;color:#fff;box-shadow:0 8px 24px rgba(0,0,0,.3);transition:all .4s ease;opacity:0;pointer-events:none;display:flex;align-items:center;gap:8px;max-width:88vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.toast.show{opacity:1;transform:translateX(-50%) translateY(-8px)}
.toast.success{background:linear-gradient(135deg,#10b981,#059669)}
.toast.error{background:linear-gradient(135deg,#ef4444,#dc2626)}
.toast.warning{background:linear-gradient(135deg,#f59e0b,#d97706)}
.loading-overlay{position:fixed;inset:0;z-index:9998;background:rgba(0,0,0,.35);backdrop-filter:blur(2px);display:flex;align-items:center;justify-content:center}
.spinner{width:44px;height:44px;border-radius:50%;border:4px solid rgba(255,255,255,.3);border-top-color:#fff;animation:spin .8s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

/* ====== RESPONSIVE ====== */
@media(max-width:768px){
  .sidebar{position:fixed;left:0;top:0;bottom:0;transform:translateX(-100%);z-index:100;width:260px}
  .sidebar.open{transform:translateX(0);box-shadow:8px 0 32px rgba(0,0,0,.3)}
  .sidebar-close{display:flex!important}
  .sidebar-overlay.active{display:block}
  .menu-toggle{display:flex!important}
  .dashboard-grid{grid-template-columns:1fr}
  .stats-grid{gap:10px}
  .product-grid{grid-template-columns:1fr 1fr;gap:10px}
  .form-grid{grid-template-columns:1fr}
  .page-content{padding:12px}
  .topbar{padding:10px 14px}
  .modal{border-radius:20px 20px 0 0;max-height:94vh}
  .product-img{height:100px}
  .transfer-btns{flex-direction:column}
  .gift-tab{font-size:.72rem;padding:8px 4px}
  .h-tab{font-size:.78rem;padding:8px 4px}
}
@media(max-width:380px){
  .stats-grid{grid-template-columns:1fr 1fr}
  .product-grid{grid-template-columns:1fr 1fr}
}