/* ══════════════════════════════════
   阿根廷货盘系统 — 全局样式
   css/styles.css
══════════════════════════════════ */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#08111e;--surface:#0e1c2f;--card:#132540;--card2:#172b48;
  --border:#1e3a5f;--border2:#253f62;
  --accent:#00c8ff;--accent2:#ff7043;--green:#00e676;--yellow:#ffc107;--red:#f44336;
  --text:#ddeeff;--dim:#6b8db0;--muted:#3a5270;
  --grad:linear-gradient(135deg,#00c8ff22,#0080ff11);
}
body{font-family:'Noto Sans SC',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden}
.mono{font-family:'JetBrains Mono',monospace}

/* ── SCREENS ── */
.screen{display:none;min-height:100vh}
.screen.active{display:flex;flex-direction:column}

/* LOGIN */
#screen-login{align-items:center;justify-content:center;background:radial-gradient(ellipse 80% 60% at 50% 0%,#0a2a4a,var(--bg) 70%);position:relative;overflow:hidden}
.login-bg-grid{position:absolute;inset:0;background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);background-size:60px 60px;opacity:.25}
.login-glow{position:absolute;width:500px;height:500px;border-radius:50%;background:radial-gradient(#00c8ff18,transparent 70%);top:-100px;left:50%;transform:translateX(-50%);pointer-events:none}
.login-box{position:relative;z-index:1;width:420px;max-width:95vw;background:var(--surface);border:1px solid var(--border2);border-radius:20px;padding:40px 36px;box-shadow:0 32px 80px #00000060,0 0 0 1px #ffffff06;animation:fadeUp .5s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.login-logo{text-align:center;margin-bottom:32px}
.login-logo .icon{font-size:40px;margin-bottom:8px}
.login-logo h1{font-size:20px;font-weight:700;letter-spacing:2px;color:var(--accent)}
.login-logo p{font-size:12px;color:var(--dim);margin-top:4px;letter-spacing:1px}
.login-tabs{display:flex;gap:6px;margin-bottom:28px;background:var(--card);border-radius:10px;padding:4px}
.ltab{flex:1;text-align:center;padding:8px;border-radius:7px;cursor:pointer;font-size:13px;color:var(--dim);transition:all .2s}
.ltab.active{background:var(--accent);color:#000;font-weight:600}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:11px;color:var(--dim);margin-bottom:6px;letter-spacing:.5px;font-weight:500}
.form-field input{width:100%;background:var(--card);border:1px solid var(--border2);color:var(--text);padding:12px 14px;border-radius:10px;font-size:14px;font-family:inherit;outline:none;transition:border .2s}
.form-field input:focus{border-color:var(--accent)}
.login-btn{width:100%;padding:14px;background:var(--accent);color:#000;border:none;border-radius:10px;font-size:15px;font-weight:700;font-family:inherit;cursor:pointer;transition:all .2s;margin-top:6px;letter-spacing:.5px}
.login-btn:hover{background:#33d4ff;transform:translateY(-1px);box-shadow:0 8px 24px #00c8ff40}
.login-err{background:#f4433618;border:1px solid #f4433640;color:#ff7070;border-radius:8px;padding:10px 14px;font-size:12px;margin-bottom:14px;display:none}
.login-hint{margin-top:16px;background:var(--card);border-radius:8px;padding:10px 14px;font-size:11px;color:var(--dim);line-height:1.8}
.login-hint strong{color:var(--accent)}

/* SHARED HEADER */
.app-header{background:var(--surface);border-bottom:1px solid var(--border);padding:0 28px;height:60px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}
.header-left{display:flex;align-items:center;gap:14px}
.header-logo{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:2px;font-family:'JetBrains Mono',monospace}
.header-role{font-size:11px;color:var(--dim);background:var(--card);padding:3px 10px;border-radius:20px;border:1px solid var(--border)}
.header-right{display:flex;align-items:center;gap:16px}
.user-pill{display:flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--border);padding:5px 12px 5px 6px;border-radius:20px;font-size:12px}
.user-avatar{width:26px;height:26px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#0080ff);display:flex;align-items:center;justify-content:center;font-size:12px;color:#000;font-weight:700}
.logout-btn{background:none;border:1px solid var(--border);color:var(--dim);padding:6px 14px;border-radius:8px;cursor:pointer;font-size:12px;font-family:inherit;transition:all .2s}
.logout-btn:hover{border-color:var(--red);color:var(--red)}

/* ADMIN SIDEBAR */
.admin-layout{display:flex;flex:1;overflow:hidden}
.sidebar{width:200px;background:var(--surface);border-right:1px solid var(--border);padding:16px 10px;display:flex;flex-direction:column;gap:4px;flex-shrink:0}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;cursor:pointer;font-size:13px;color:var(--dim);transition:all .2s}
.nav-item:hover{background:var(--card);color:var(--text)}
.nav-item.active{background:rgba(0,200,255,.12);color:var(--accent);border:1px solid rgba(0,200,255,.2)}
.nav-icon{font-size:16px;width:20px;text-align:center}
.sidebar-section{font-size:10px;color:var(--muted);letter-spacing:1.5px;padding:12px 12px 4px;font-weight:600}
.admin-content{flex:1;overflow-y:auto;padding:24px}

/* BUYER LAYOUT */
.buyer-nav{background:var(--surface);border-bottom:1px solid var(--border);display:flex;gap:0;padding:0 28px}
.buyer-tab{padding:14px 20px;cursor:pointer;font-size:13px;color:var(--dim);border-bottom:2px solid transparent;transition:all .2s}
.buyer-tab:hover{color:var(--text)}
.buyer-tab.active{color:var(--accent);border-bottom-color:var(--accent)}
.buyer-content{flex:1;overflow-y:auto;padding:24px;max-width:1200px;margin:0 auto;width:100%}

/* COMMON COMPONENTS */
.page-title{font-size:18px;font-weight:600;margin-bottom:4px}
.page-sub{font-size:12px;color:var(--dim);margin-bottom:20px}
.search-row{display:flex;gap:10px;margin-bottom:18px;flex-wrap:wrap}
.si-wrap{flex:1;min-width:200px;position:relative}
.si-wrap .ico{position:absolute;left:12px;top:50%;transform:translateY(-50%);font-size:14px;color:var(--muted)}
.si-wrap input{padding-left:36px}
input,select,textarea{width:100%;background:var(--card);border:1px solid var(--border2);color:var(--text);padding:10px 14px;border-radius:8px;font-size:13px;font-family:inherit;outline:none;transition:border .2s}
input:focus,select:focus,textarea:focus{border-color:var(--accent)}
select{cursor:pointer;appearance:none}
.sel-wrap{position:relative}
.sel-wrap::after{content:'▾';position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--dim);pointer-events:none;font-size:11px}
.sel-wrap select{padding-right:30px}
.btn{padding:9px 18px;border-radius:8px;border:none;cursor:pointer;font-size:13px;font-weight:500;font-family:inherit;transition:all .2s;white-space:nowrap}
.btn-p{background:var(--accent);color:#000}.btn-p:hover{background:#33d4ff;transform:translateY(-1px)}
.btn-o{background:transparent;border:1px solid var(--border2);color:var(--dim)}.btn-o:hover{border-color:var(--accent);color:var(--accent)}
.btn-g{background:var(--green);color:#000}.btn-g:hover{background:#33eb92}
.btn-r{background:var(--red);color:#fff;font-size:12px;padding:6px 12px}
.btn-sm{padding:6px 12px;font-size:12px}

/* STAT CARDS */
.stats-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px;margin-bottom:24px}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px;display:flex;align-items:center;gap:14px}
.stat-ico{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px}
.stat-val{font-family:'JetBrains Mono',monospace;font-size:26px;font-weight:600}
.stat-lbl{font-size:11px;color:var(--dim);margin-top:2px}

/* PRODUCT GRID */
.prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.supplier-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;margin:6px 0 0;padding:10px 14px;background:linear-gradient(90deg,rgba(0,200,255,.08),transparent);border-left:3px solid var(--accent);border-radius:6px}
.supplier-title{font-size:15px;font-weight:700;color:var(--text);display:flex;align-items:center;gap:10px}
.supplier-count{font-size:11px;color:var(--dim);background:var(--card);padding:2px 8px;border-radius:10px;font-weight:400}
.supplier-lock{font-size:11px;color:var(--yellow)}
.prod-card{background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:all .22s;cursor:default}
.prod-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 8px 28px #00c8ff14}
.prod-img{height:190px;background:linear-gradient(135deg,#0d2035,#091828);display:flex;align-items:center;justify-content:center;font-size:56px;position:relative}
.stk-badge{position:absolute;top:8px;right:8px;padding:3px 9px;border-radius:20px;font-size:10px;font-weight:700;font-family:'JetBrains Mono',monospace}
.sh{background:#00e67620;color:var(--green);border:1px solid #00e67640}
.sm{background:#ffc10720;color:var(--yellow);border:1px solid #ffc10740}
.sl{background:#f4433620;color:var(--red);border:1px solid #f4433640}
.sn{background:#33333320;color:#888;border:1px solid #444}
.prod-body{padding:12px}
.prod-sku{font-family:'JetBrains Mono',monospace;font-size:10px;color:var(--accent);letter-spacing:1px;margin-bottom:3px}
.prod-name{font-size:13px;font-weight:500;margin-bottom:5px;line-height:1.4}
.prod-cat{font-size:10px;color:var(--muted);background:var(--surface);display:inline-block;padding:2px 7px;border-radius:4px;margin-bottom:8px}
.prod-meta{display:flex;justify-content:space-between;align-items:flex-end}
.prod-price{font-family:'JetBrains Mono',monospace;font-size:20px;color:var(--accent2);font-weight:700}
.prod-price small{font-size:10px;color:var(--dim);display:block}
.prod-stk{text-align:right;font-size:11px;color:var(--dim)}
.prod-stk strong{display:block;font-size:17px;color:var(--text);font-family:'JetBrains Mono',monospace}
.add-btn{width:100%;margin-top:10px;padding:8px;background:rgba(0,200,255,.07);border:1px solid rgba(0,200,255,.18);color:var(--accent);border-radius:6px;cursor:pointer;font-size:12px;font-family:inherit;transition:all .2s}
.add-btn:hover:not(:disabled){background:var(--accent);color:#000}
.add-btn:disabled{opacity:.35;cursor:not-allowed}

/* SUPPLIER / WHOLESALER TABS */
.sup-tabs{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap;align-items:center}
.sup-tab{padding:6px 14px;border-radius:20px;cursor:pointer;font-size:12px;font-weight:500;border:1px solid var(--border2);color:var(--dim);transition:all .2s;white-space:nowrap}
.sup-tab:hover{border-color:var(--accent);color:var(--text)}
.sup-tab.active{background:rgba(0,200,255,.15);border-color:var(--accent);color:var(--accent)}
.sup-tab.locked{border-color:var(--yellow);color:var(--yellow);opacity:.75;cursor:default}
.catalog-cart-bar{background:linear-gradient(90deg,rgba(0,200,255,.1),rgba(0,200,255,.05));border:1px solid rgba(0,200,255,.25);border-radius:10px;padding:12px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;flex-wrap:wrap}

/* TABLE */
.tbl-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
th{background:var(--card);padding:11px 14px;text-align:left;font-size:10px;letter-spacing:1px;text-transform:uppercase;color:var(--dim);border-bottom:1px solid var(--border);white-space:nowrap;font-weight:600}
td{padding:11px 14px;border-bottom:1px solid rgba(30,58,95,.4);vertical-align:middle}
tr:hover td{background:rgba(0,200,255,.025)}
.badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:10px;font-weight:700}
.bp{background:#ffc10718;color:var(--yellow)}
.bs{background:#00c8ff18;color:var(--accent)}
.bd{background:#00e67618;color:var(--green)}
.bc{background:#f4433618;color:var(--red)}

/* INVENTORY BAR */
.ibar-wrap{display:flex;align-items:center;gap:8px;min-width:140px}
.ibar{flex:1;height:5px;background:var(--border);border-radius:3px;overflow:hidden}
.ibar-fill{height:100%;border-radius:3px}
.fg{background:var(--green)}.fy{background:var(--yellow)}.fr{background:var(--red)}

/* CART ITEMS */
.cart-item{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid var(--border)}
.ce{font-size:26px;width:36px;text-align:center}
.ci{flex:1}.cn{font-size:13px;font-weight:500}.cs{font-size:10px;color:var(--muted);font-family:'JetBrains Mono',monospace}
.qc{display:flex;align-items:center;gap:6px}
.qb{width:22px;height:22px;background:var(--surface);border:1px solid var(--border);color:var(--text);border-radius:4px;cursor:pointer;font-size:13px;display:flex;align-items:center;justify-content:center;transition:all .15s}
.qb:hover{border-color:var(--accent);color:var(--accent)}
.qn{font-family:'JetBrains Mono',monospace;font-size:12px;min-width:22px;text-align:center}
.cp{font-family:'JetBrains Mono',monospace;font-size:13px;color:var(--accent2);min-width:55px;text-align:right}

/* CHANNEL TABS */
.channel-tab{background:var(--card);border:2px solid var(--border);border-radius:12px;padding:16px 10px;text-align:center;cursor:pointer;transition:all .22s}
.channel-tab:hover{border-color:var(--accent);background:rgba(0,200,255,.06)}
.channel-tab.active{border-color:var(--accent);background:rgba(0,200,255,.13);color:var(--accent)}

/* CART DRAWER */
.cart-btn{display:flex;align-items:center;gap:6px;background:var(--card);border:1px solid var(--border);padding:5px 14px;border-radius:20px;cursor:pointer;font-size:12px;color:var(--dim);transition:all .2s}
.cart-btn:hover{border-color:var(--accent);color:var(--text)}
.cart-drawer-ov{display:none;position:fixed;inset:0;z-index:300;background:#00000075;backdrop-filter:blur(4px)}
.cart-drawer-ov.open{display:flex;justify-content:flex-end}
.cart-drawer{width:400px;max-width:94vw;height:100%;background:var(--surface);border-left:1px solid var(--border2);display:flex;flex-direction:column;animation:dIn .25s ease}
@keyframes dIn{from{transform:translateX(100%)}to{transform:translateX(0)}}
.cart-drawer-hd{padding:18px 20px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;flex-shrink:0}
.cart-drawer-body{flex:1;overflow-y:auto;padding:4px 20px}
.cart-drawer-ft{padding:16px 20px;border-top:1px solid var(--border);background:var(--surface);flex-shrink:0}

/* CHECKOUT OVERLAY */
.checkout-ov{display:none;position:fixed;inset:0;z-index:250;background:var(--bg);overflow-y:auto}
.checkout-ov.open{display:block}
.checkout-nav{background:var(--surface);border-bottom:1px solid var(--border);padding:0 24px;height:58px;display:flex;align-items:center;gap:14px;position:sticky;top:0;z-index:10}
.checkout-body{max-width:960px;margin:0 auto;padding:24px}
.co-label-warn{background:#f4433618;border:1px solid #f4433640;color:#ff8080;border-radius:8px;padding:10px 14px;font-size:12px;margin-bottom:12px;display:none}

/* ORDER FORM */
.order-layout{display:grid;grid-template-columns:1fr 360px;gap:20px}
.form-section{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px}
.section-hd{font-size:11px;font-weight:700;letter-spacing:1.5px;color:var(--dim);text-transform:uppercase;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.fg2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.fg2 .full{grid-column:1/-1}
.fl{display:flex;flex-direction:column;gap:5px}
.fl label{font-size:11px;color:var(--dim);font-weight:500}
textarea.form-input{min-height:72px;resize:vertical}
.form-input{width:100%;background:var(--surface);border:1px solid var(--border);color:var(--text);padding:10px 14px;border-radius:8px;font-size:13px;font-family:inherit;outline:none;transition:border .2s}
.form-input:focus{border-color:var(--accent)}

/* MODAL */
.modal-ov{display:none;position:fixed;inset:0;background:#00000080;z-index:200;align-items:center;justify-content:center;backdrop-filter:blur(6px)}
.modal-ov.open{display:flex}
.modal{background:var(--surface);border:1px solid var(--border2);border-radius:16px;padding:26px;width:460px;max-width:95vw;max-height:85vh;overflow-y:auto;animation:mIn .2s ease}
@keyframes mIn{from{opacity:0;transform:scale(.95) translateY(8px)}to{opacity:1;transform:scale(1) translateY(0)}}
.modal-hd{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.modal-title{font-size:15px;font-weight:600}
.modal-x{width:26px;height:26px;background:var(--card);border:1px solid var(--border);border-radius:6px;cursor:pointer;color:var(--dim);font-size:14px;display:flex;align-items:center;justify-content:center;transition:all .15s}
.modal-x:hover{border-color:var(--red);color:var(--red)}
.mg2{display:grid;grid-template-columns:1fr 1fr;gap:11px}
.mg2 .full{grid-column:1/-1}

/* TOAST */
.toast{position:fixed;bottom:22px;right:22px;padding:12px 20px;border-radius:10px;font-size:13px;font-weight:600;z-index:999;transform:translateY(70px);opacity:0;transition:all .3s;pointer-events:none;max-width:320px}
.toast.show{transform:translateY(0);opacity:1}

.empty{text-align:center;padding:50px 20px;color:var(--muted)}
.empty-ico{font-size:44px;margin-bottom:10px}
hr.div{border:none;border-top:1px solid var(--border);margin:14px 0}

/* RESPONSIVE */
@media(max-width:768px){
  .admin-layout{flex-direction:column;overflow:visible}
  .sidebar{width:100%;flex-direction:row;overflow-x:auto;gap:6px;padding:10px;border-right:none;border-bottom:1px solid var(--border);position:sticky;top:60px;z-index:90}
  .sidebar::-webkit-scrollbar{display:none}
  .sidebar-section{display:none}
  .nav-item{white-space:nowrap;flex-shrink:0;font-size:12px;padding:8px 12px}
  .nav-item .nav-icon{font-size:14px;width:auto}
  .admin-content{overflow-y:visible}
  .order-layout{grid-template-columns:1fr}
  .fg2{grid-template-columns:1fr}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .app-header{padding:0 14px}
  .admin-content,.buyer-content{padding:14px}
  /* 移动端表格 → 卡片 */
  .mob-cards table{display:block}
  .mob-cards thead{display:none}
  .mob-cards tbody{display:block}
  .mob-cards tr{display:block;background:var(--card);border:1px solid var(--border);border-radius:10px;margin-bottom:10px;padding:10px 14px}
  .mob-cards td{display:flex;justify-content:space-between;align-items:center;padding:5px 0;border:none;font-size:12px}
  .mob-cards td[data-label]::before{content:attr(data-label);color:var(--dim);font-size:10px;font-weight:600;flex-shrink:0;margin-right:8px;white-space:nowrap}
  .mob-cards td:last-child{padding-top:8px;margin-top:4px;border-top:1px solid rgba(30,58,95,.4)}
  .prod-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
  .checkout-body{padding:14px}
  .co-channel-grid{grid-template-columns:1fr!important}
}