*{margin:0;padding:0;box-sizing:border-box}
:root{
  /* New Viet Dairy brand palette (from company logo) */
  --nvd-green:#5CB93F;--nvd-green-dk:#46982e;--nvd-blue:#1B75BB;--nvd-blue-dk:#125387;--nvd-cyan:#29AAE1;
  --navy:#0d3f66;--blue:var(--nvd-blue);--blue-lt:#e9f3fb;--green-lt:#eef7e9;
  --bg:#f4f7fa;--card:#fff;--text:#1a2433;--muted:#68758a;--line:#e2e8f0;
  --green:#1a9c6b;--amber:#c47f00;--red:#c73a3a;
  --radius:14px;--shadow:0 2px 10px rgba(18,83,135,.09);
}
html{-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Hiragino Kaku Gothic ProN','Hiragino Sans',Roboto,'Helvetica Neue',Arial,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}
.hidden{display:none!important}

/* ---------- Login ---------- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(150deg,var(--nvd-blue-dk) 0%,var(--nvd-blue) 46%,var(--nvd-cyan) 100%);padding:20px;position:relative}
.login-wrap::after{content:'';position:absolute;left:0;right:0;bottom:0;height:7px;background:linear-gradient(90deg,var(--nvd-blue),var(--nvd-cyan),var(--nvd-green))}
.login-card{background:#fff;border-radius:20px;padding:32px 30px 24px;width:100%;max-width:410px;box-shadow:0 18px 50px rgba(0,0,0,.28);text-align:center}
.login-logo-img{max-width:230px;width:80%;margin-bottom:14px}
.login-card h1{font-size:23px;color:var(--nvd-blue)}
.login-sub{color:var(--muted);font-size:14px;margin:6px 0 20px}
.login-card form{text-align:left}
.login-brand{margin-top:18px;font-size:12px;color:var(--nvd-green-dk);font-weight:600;letter-spacing:.2px}
.lang-row{display:flex;gap:8px;justify-content:center;margin-top:20px}
.lang-btn{background:var(--blue-lt);border:1.5px solid transparent;color:var(--nvd-blue);border-radius:9px;padding:7px 13px;font-size:13px;font-weight:600;cursor:pointer}
.lang-btn.active{border-color:var(--nvd-blue);background:#fff}
label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin:14px 0 6px}
input[type=text],input[type=password],input[type=search],input[type=email],input[type=tel],textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font-size:16px;background:#fff;color:var(--text);outline:none;transition:border .15s}
input:focus,textarea:focus{border-color:var(--nvd-blue)}
.btn{border:none;border-radius:10px;padding:13px 20px;font-size:15px;font-weight:600;cursor:pointer;transition:filter .15s}
.btn:active{filter:brightness(.92)}
.btn-primary{background:var(--nvd-blue);color:#fff}
.btn-green{background:var(--nvd-green);color:#fff}
.btn-outline{background:#fff;color:var(--nvd-blue);border:1.5px solid var(--nvd-blue)}
.btn-danger{background:#fff;color:var(--red);border:1.5px solid var(--red)}
.btn-block{width:100%;margin-top:18px}
.error-msg{color:var(--red);font-size:13.5px;margin-top:12px;background:#fdeaea;padding:9px 12px;border-radius:8px}

/* ---------- Topbar ---------- */
.topbar{background:#fff;position:sticky;top:0;z-index:40;padding-top:env(safe-area-inset-top);box-shadow:0 1px 0 var(--line)}
.topbar::after{content:'';display:block;height:4px;background:linear-gradient(90deg,var(--nvd-blue),var(--nvd-cyan),var(--nvd-green))}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 16px 8px}
.brand-logo{height:36px;display:block}
.topbar-actions{display:flex;gap:8px;align-items:center}
.icon-btn{background:var(--blue-lt);border:none;color:var(--nvd-blue);border-radius:9px;padding:8px 12px;font-size:14px;font-weight:600;cursor:pointer}
.icon-btn:active{background:#d3e7f7}
.lang-select{border:1.5px solid var(--line);border-radius:9px;padding:7px 6px;font-size:13px;font-weight:600;color:var(--nvd-blue);background:#fff;cursor:pointer}
.search-row{padding:4px 16px 12px;background:#fff}
.search-box{position:relative;display:flex;align-items:center}
.search-box input{padding-left:40px;padding-right:38px;border:1.5px solid var(--line);border-radius:12px;height:46px;font-size:16px;background:var(--bg)}
.search-ico{position:absolute;left:13px;font-size:16px;z-index:1}
.clear-btn{position:absolute;right:8px;background:#e8ecf3;border:none;border-radius:50%;width:26px;height:26px;font-size:12px;cursor:pointer;color:var(--muted)}

/* ---------- Stats ---------- */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:14px 16px 0;max-width:1100px;margin:0 auto}
.stat{background:var(--card);border-radius:var(--radius);padding:12px 8px;text-align:center;box-shadow:var(--shadow);border-top:3px solid var(--nvd-blue)}
.stat:nth-child(2){border-top-color:var(--nvd-cyan)}
.stat:nth-child(3){border-top-color:var(--nvd-green)}
.stat:nth-child(4){border-top-color:var(--amber)}
.stat b{display:block;font-size:22px;color:var(--nvd-blue)}
.stat span{font-size:11.5px;color:var(--muted)}

/* ---------- Tab bar ---------- */
.tabbar{display:flex;gap:6px;max-width:1100px;margin:0 auto;padding:14px 16px 0}
.tab-btn{flex:1;background:#fff;border:1.5px solid var(--line);border-radius:11px;padding:11px 8px;font-size:14.5px;font-weight:700;color:var(--muted);cursor:pointer;transition:all .15s}
.tab-btn.active{background:var(--nvd-blue);border-color:var(--nvd-blue);color:#fff;box-shadow:0 3px 10px rgba(27,117,187,.3)}

/* ---------- Overview / dashboard ---------- */
.ov-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 16px 18px;margin-bottom:14px}
.ov-title{font-size:14px;font-weight:700;color:var(--navy);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.ov-title span.count{margin-left:auto;font-size:12px;font-weight:600;color:var(--muted)}
.bar-row{margin-bottom:13px;cursor:pointer}
.bar-row:last-child{margin-bottom:0}
.bar-row:active{opacity:.65}
.bar-head{display:flex;align-items:baseline;gap:8px;margin-bottom:5px;font-size:14px}
.bar-head .lbl{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:600}
.bar-head b{font-size:15px;color:var(--nvd-blue);font-variant-numeric:tabular-nums}
.bar-track{height:9px;background:#eef2f7;border-radius:99px;overflow:hidden}
.bar-fill{height:100%;border-radius:99px;background:linear-gradient(90deg,var(--nvd-blue),var(--nvd-cyan));transition:width .5s cubic-bezier(.4,0,.2,1)}
.bar-row.green .bar-fill{background:linear-gradient(90deg,var(--nvd-green-dk),var(--nvd-green))}
.bar-row.green .bar-head b{color:var(--nvd-green-dk)}
.recent-item{display:flex;align-items:center;gap:11px;padding:9px 0;border-bottom:1px solid var(--line);cursor:pointer;font-size:14px}
.recent-item:last-child{border-bottom:none}
.recent-item:active{opacity:.6}
.recent-dot{width:8px;height:8px;border-radius:50%;background:var(--nvd-green);flex-shrink:0}
.recent-name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.recent-co{color:var(--muted);font-size:12.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-left:auto;max-width:44%;text-align:right}
/* 700px lets an 8.3" iPad in portrait use two columns instead of one tall list */
@media(min-width:700px){.ov-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px;align-items:start}.ov-grid .ov-card{margin-bottom:0}}

/* ---------- Credit footer ---------- */
.app-credit{text-align:center;font-size:11.5px;color:var(--muted);padding:22px 16px 4px;line-height:1.6}
.app-credit b{color:var(--nvd-green-dk);font-weight:700}

/* ---------- Toolbar ---------- */
.toolbar{display:flex;gap:10px;align-items:center;max-width:1100px;margin:0 auto;padding:12px 16px 0}
.tool-select{border:1.5px solid var(--line);border-radius:9px;padding:8px 10px;font-size:13.5px;font-weight:600;color:var(--text);background:#fff;cursor:pointer}
.chip-toggle{background:#fff;border:1.5px solid var(--line);border-radius:99px;padding:8px 14px;font-size:13px;font-weight:600;color:var(--muted);cursor:pointer}
.chip-toggle.on{background:#fff4e0;border-color:var(--amber);color:var(--amber)}

/* ---------- Card grid ---------- */
.content{max-width:1100px;margin:0 auto;padding:12px 16px 110px}
.result-info{font-size:13.5px;color:var(--muted);margin:4px 2px 12px}
.filter-chip{display:inline-block;background:var(--nvd-blue);color:#fff;font-size:12.5px;font-weight:700;border-radius:99px;padding:4px 11px;margin-right:7px;cursor:pointer}
.filter-chip:active{filter:brightness(.88)}
/* minmax(0,...) instead of 1fr: without it a long unbreakable email inside a
   card sets the track's min-content width and blows the grid past the viewport. */
.card-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:12px}
@media(min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1000px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.person-card{background:var(--card);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);cursor:pointer;display:flex;gap:14px;align-items:flex-start;transition:transform .12s;border-left:4px solid var(--nvd-green)}
.person-card:active{transform:scale(.985)}
.avatar{width:52px;height:52px;border-radius:14px;background:var(--green-lt);color:var(--nvd-green-dk);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:19px;flex-shrink:0}
.pc-info{min-width:0;flex:1}
.pc-name{font-weight:700;font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pc-pos{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:1px}
.pc-company{display:inline-block;background:var(--blue-lt);color:var(--nvd-blue);font-size:12px;font-weight:600;border-radius:7px;padding:3px 9px;margin-top:7px;max-width:100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:pointer}
.pc-company:active{background:#d3e7f7}
.pc-contacts{font-size:13px;color:var(--muted);margin-top:8px;line-height:1.65;word-break:break-all}
.badge-dup{display:inline-block;background:#fff4e0;color:var(--amber);font-size:11.5px;font-weight:700;border-radius:6px;padding:2px 8px;margin-top:7px;margin-left:6px}
.empty-state{text-align:center;padding:60px 20px;color:var(--muted)}
.empty-ico{font-size:56px;margin-bottom:12px}

/* ---------- FAB ---------- */
.fab{position:fixed;bottom:calc(22px + env(safe-area-inset-bottom));right:22px;background:var(--nvd-green);color:#fff;border:none;border-radius:16px;padding:16px 22px;font-size:16px;font-weight:700;box-shadow:0 8px 24px rgba(92,185,63,.45);cursor:pointer;z-index:30}
.fab:active{filter:brightness(.9)}

/* ---------- Modal ---------- */
.modal{position:fixed;inset:0;background:rgba(10,25,45,.55);z-index:50;display:flex;align-items:flex-end;justify-content:center;backdrop-filter:blur(3px)}
@media(min-width:640px){.modal{align-items:center;padding:24px}}
.modal-box{background:#fff;border-radius:20px 20px 0 0;width:100%;max-width:560px;max-height:92vh;display:flex;flex-direction:column;animation:slideUp .22s ease}
@media(min-width:640px){.modal-box{border-radius:20px}}
.modal-lg{max-width:680px}
@keyframes slideUp{from{transform:translateY(40px);opacity:.4}to{transform:none;opacity:1}}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px 12px;border-bottom:1px solid var(--line)}
.modal-head h2{font-size:18px;color:var(--nvd-blue)}
.close-x{background:#eef1f6;border:none;border-radius:50%;width:32px;height:32px;font-size:14px;cursor:pointer;color:var(--muted)}
.modal-body{padding:18px 20px 26px;overflow-y:auto}
.sep{border:none;border-top:1px solid var(--line);margin:20px 0}

/* ---------- Upload ---------- */
.drop-zone{border:2.5px dashed #a9cf9b;border-radius:16px;padding:34px 18px;text-align:center;cursor:pointer;background:var(--green-lt);transition:background .15s}
.drop-zone.drag{background:#ddf0d4;border-color:var(--nvd-green)}
.drop-ico{font-size:42px;margin-bottom:8px}
.drop-note{font-size:12.5px;color:var(--muted);margin-top:8px;line-height:1.5}
.upload-list{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.up-item{display:flex;align-items:center;gap:12px;background:var(--bg);border-radius:12px;padding:12px 14px;font-size:14px}
.up-item .spin{width:18px;height:18px;border:2.5px solid var(--line);border-top-color:var(--nvd-green);border-radius:50%;animation:spin .8s linear infinite;flex-shrink:0}
@keyframes spin{to{transform:rotate(360deg)}}
.up-ok{color:var(--green);font-weight:700}
.up-err{color:var(--red);font-size:12.5px}
.up-name{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ---------- Detail ---------- */
.crop-img{width:100%;border-radius:12px;box-shadow:var(--shadow);margin-bottom:16px;cursor:zoom-in;max-height:300px;object-fit:contain;background:#f0f2f6}
.detail-rows{display:flex;flex-direction:column;gap:2px}
.d-row{display:flex;gap:12px;padding:9px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.d-row:last-child{border-bottom:none}
.d-label{width:110px;flex-shrink:0;color:var(--muted);font-size:13px;font-weight:600;padding-top:1px}
.d-val{flex:1;word-break:break-word}
.d-val a{color:var(--nvd-blue);text-decoration:none;font-weight:600}
.detail-actions{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.detail-actions .btn{flex:1;min-width:130px}
.dup-warn{background:#fff4e0;color:#8a5c00;border-radius:10px;padding:10px 14px;font-size:13.5px;margin-bottom:14px}
.dup-warn a{color:var(--amber);font-weight:700;cursor:pointer;text-decoration:underline}
.link-orig{font-size:13px;color:var(--muted);margin-top:10px}
.link-orig a{color:var(--nvd-blue);cursor:pointer;font-weight:600}

/* ---------- Share / QR ---------- */
.share-lead{font-size:14px;color:var(--muted);margin-bottom:14px;text-align:center}
.qr-box{display:flex;justify-content:center;padding:14px;background:#fff;border:1.5px solid var(--line);border-radius:16px;margin-bottom:14px}
.qr-box svg{width:230px;height:230px}
.qr-box .qr-loading{color:var(--muted);font-size:14px;padding:90px 0}
.share-url{display:flex;align-items:center;gap:8px;background:var(--bg);border-radius:10px;padding:8px 8px 8px 14px;margin-bottom:20px}
.share-url span{flex:1;min-width:0;font-size:13px;color:var(--text);word-break:break-all;font-family:ui-monospace,monospace}
.copy-btn{flex-shrink:0;background:var(--nvd-blue);color:#fff;border:none;border-radius:8px;padding:9px 14px;font-size:13px;font-weight:600;cursor:pointer}
.copy-btn:active{filter:brightness(.9)}
.share-steps h3{font-size:14px;color:var(--navy);margin-bottom:10px}
.share-steps ol{margin:0;padding-left:20px}
.share-steps li{font-size:14px;color:var(--text);margin-bottom:8px;line-height:1.5}

/* ---------- Lightbox ---------- */
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.88);z-index:70;display:flex;align-items:center;justify-content:center;cursor:zoom-out}
.lightbox img{max-width:96vw;max-height:94vh;border-radius:8px}

/* ---------- Toast ---------- */
.toast{position:fixed;bottom:calc(96px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);background:var(--navy);color:#fff;padding:12px 22px;border-radius:12px;font-size:14.5px;font-weight:600;z-index:80;box-shadow:0 8px 24px rgba(0,0,0,.3);max-width:90vw;text-align:center}

.hide-sm{display:inline}
@media(max-width:480px){.hide-sm{display:none}.stats-row{gap:7px}.stat b{font-size:18px}.brand-logo{height:30px}}