@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;450;500;550;600;650;700;750;800&display=swap');
:root{font-family:'Be Vietnam Pro',system-ui,sans-serif;color:#292b31;background:#fbfaf8;font-synthesis:none;--red:#bd302f;--muted:#797b84;--line:#e9e7e4}*{box-sizing:border-box}body{margin:0;display:flex;height:100dvh;min-height:540px}button,a,input{-webkit-tap-highlight-color:transparent}button,input{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible{outline:3px solid #e99790;outline-offset:4px}button:disabled{opacity:.5;cursor:wait}.sidebar{width:270px;flex-shrink:0;background:#f3f1ed;border-right:1px solid var(--line);padding:31px 23px 22px;display:flex;flex-direction:column;overflow-y:auto}.brand{display:flex;gap:10px;align-items:center;font-size:20px;font-weight:750;letter-spacing:-1px;white-space:nowrap}.brand-icon{background:var(--red);width:37px;height:39px;border-radius:11px;color:white;display:flex;align-items:center;justify-content:center;font-size:26px;letter-spacing:-6px;padding-right:6px}.brand-icon span{color:#f5c4bc}.brand small{display:block;font-size:7.2px;letter-spacing:1px;margin-top:5px;color:#8b8682;font-weight:500}.new-chat{border:1px solid #dedbd6;background:transparent;border-radius:9px;margin:35px 0 34px;padding:10px 12px;text-align:left;font-size:11px;font-weight:550;color:#51525a;display:flex;align-items:center;gap:10px}.new-chat>span{font-size:21px;line-height:20px}.new-chat:hover{background:white}.nav-label{font-size:8px;font-weight:600;letter-spacing:1.4px;color:#96918c;margin:0 10px 13px}.nav-current{display:flex;align-items:center;gap:10px;background:#ebe4df;color:#9c3432;padding:12px 13px;border-radius:8px;font-size:11px;font-weight:600}.nav-current>span:first-child{font-size:16px}.nav-dot{width:5px;height:5px;background:var(--red);border-radius:50%;margin-left:auto}.guide{padding:29px 12px 20px}.mini-icon{font-size:21px;color:#b79677}.guide h2{font-size:18px;line-height:1.6;letter-spacing:-.6px;font-weight:600;margin:9px 0}.guide p{font-size:10px;color:#8b8782;line-height:1.9}.guide ol{padding:0;list-style:none;margin:22px 0 0}.guide li{display:flex;align-items:center;gap:7px;font-size:10px;color:#726c66;margin:15px 0}.guide li>span{font-size:9px;border:1px solid #d9d3cc;border-radius:50%;width:19px;height:19px;display:grid;place-items:center;margin-right:3px;color:#9c8c7b}.guide strong{font-weight:550}.try-panel{border-top:1px solid #e2dfda;padding:20px 8px 10px}.try-title{font-size:7px;color:#9c9186;letter-spacing:.8px;display:flex;align-items:center;justify-content:space-between;gap:3px}.try-title>span{font-size:7px;color:#b28c62;border:1px solid #dfceb7;border-radius:4px;padding:3px 5px;letter-spacing:.4px}.try-panel p{font-size:10px;color:#8b8781;margin:13px 0}.sample{display:flex;align-items:center;width:100%;border:0;background:transparent;font-size:10px;padding:9px 0;color:#68645f;gap:9px;text-align:left}.sample>span:last-child{margin-left:auto;color:#b2aaa0}.sample:hover{color:var(--red)}.green-dot,.amber-dot,.red-dot,.gray-dot{width:5px;height:5px;border-radius:50%;background:#46947a;flex-shrink:0}.amber-dot{background:#bb924f}.red-dot{background:#bb7772}.gray-dot{background:#999}.sidebar-footer{margin-top:auto;padding:24px 9px 0;display:flex;gap:10px;font-size:9px;color:#9b948e;line-height:1.9}.sidebar-footer strong{font-weight:400;color:#7c756f}.shield{font-size:25px;line-height:30px;color:#a3998e}.workspace{flex:1;min-width:0;display:flex;flex-direction:column;background:radial-gradient(ellipse at 50% 22%,#f5f0e9 0,transparent 46%),#fbfaf8}.topbar{height:76px;flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:0 38px;border-bottom:1px solid var(--line);background:#fbfaf8}.topbar>div{display:flex;gap:11px;align-items:center}.header-mark{font-size:19px;color:#8a7f72}.topbar strong{font-size:12px;font-weight:550}.auto-tag{font-size:8px;color:#6a8c77;background:#edf1e9;border:1px solid #e1e8da;border-radius:5px;padding:4px 6px}.topbar a{font-size:10px;color:#817b73}.topbar a span{margin-left:14px}.demo-banner{font-size:9px;text-align:center;color:#a88b68;background:#f5f0e7;border-bottom:1px solid #eee5d8;padding:9px 12px;line-height:1.7}.demo-banner>span{margin-right:6px}.conversation{flex:1;overflow-y:auto;scroll-behavior:smooth;padding:0 30px 25px;overscroll-behavior:contain}.intro{text-align:center;padding:39px 0 24px}.intro-mark{position:relative;width:55px;height:55px;display:grid;place-items:center;margin:auto;background:#f3e7e1;border:1px solid #ebd8cc;border-radius:17px;font-size:32px;color:var(--red);box-shadow:0 7px 20px #af86670b;transform:rotate(-5deg)}.intro-mark>span{position:absolute;right:-6px;top:-7px;font-size:19px;color:#bd9673;background:#fbfaf8;border-radius:50%;padding:1px}.eyebrow{font-size:8px!important;letter-spacing:2.2px!important;color:#a48f7d!important;margin:19px 0 12px!important;font-weight:600}.intro h1{font-size:35px;line-height:1.4;font-weight:550;letter-spacing:-1.7px;margin:0;color:#3b3631}.intro>p:last-child{font-size:11px;color:#9a9186;margin-top:15px;line-height:1.8}.day-label{font-size:8px;color:#b0a89e;display:flex;align-items:center;gap:15px;max-width:680px;margin:6px auto 25px}.day-label:before,.day-label:after{content:'';height:1px;background:#eae5de;flex:1}.messages{max-width:680px;margin:auto}.message{display:flex;gap:11px;margin:0 0 24px;animation:appear .22s ease-out}.avatar{background:#eee5dd;border:1px solid #e2d6ca;width:29px;height:29px;flex-shrink:0;border-radius:9px;display:grid;place-items:center;color:#ae6951;font-size:17px}.message-body{max-width:100%;min-width:0}.sender{font-size:8px;color:#91867a;margin:1px 0 8px;font-weight:550}.sender>span{font-size:7px;font-weight:400;margin-left:7px;color:#afa69b}.bubble{background:#fff;border:1px solid #e9e3db;border-radius:0 12px 12px 12px;padding:16px 19px;font-size:11px;line-height:1.95;color:#6b655f;box-shadow:0 3px 8px #3d291504;overflow-wrap:anywhere}.bubble p{margin:0 0 7px}.bubble p:last-child{margin:0}.bubble strong{color:#443d36;font-weight:600}.bubble .subtle{font-size:10px;color:#a1988d}.user{justify-content:flex-end;margin-bottom:20px}.user .bubble{background:#efe5de;border-color:#e9d9cd;border-radius:12px 0 12px 12px;color:#775747;padding:11px 17px}.user .sender{text-align:right}.code-card{margin-top:12px;background:#faf7f2;border:1px solid #e9e0d4;border-radius:9px;padding:15px 17px}.code-head{display:flex;align-items:center;justify-content:space-between;gap:15px;font-size:9px;color:#8e7860;letter-spacing:.4px}.code-head>span:first-child{font-size:8px;font-weight:600;letter-spacing:1px}.ttl{color:#7c9379;font-variant-numeric:tabular-nums;font-size:9px;letter-spacing:0}.code-number{font-size:33px;letter-spacing:7px;font-weight:550;color:#433c34;margin:8px 0 13px;font-variant-numeric:tabular-nums;line-height:1.5;user-select:all}.copy-btn{background:var(--red);color:#fff;border:0;border-radius:6px;font-size:10px;padding:10px 14px;width:100%;display:flex;justify-content:center;gap:10px}.copy-btn:hover{background:#a92525}.code-footer{font-size:8px;color:#a19384;display:flex;justify-content:space-between;margin-top:10px;gap:15px}.expired .code-number{opacity:.3;text-decoration:line-through}.expired .ttl{color:#b16c61}.inline-actions{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}.inline-actions button,.inline-actions a{border:1px solid #e2d9cd;color:#8b7156;border-radius:6px;background:#fffcf8;font-size:9px;padding:7px 10px}.inline-actions button:hover,.inline-actions a:hover{background:#f2e9df}.typing{display:flex;gap:4px;padding:7px 2px}.typing>i{width:4px;height:4px;border-radius:50%;background:#bba78f;animation:pulse 1s infinite}.typing>i:nth-child(2){animation-delay:.15s}.typing>i:nth-child(3){animation-delay:.3s}.composer-area{width:100%;padding:12px 36px 17px;background:linear-gradient(transparent,#fbfaf8 15%)}.quick-actions{display:flex;gap:7px;max-width:680px;margin:0 auto 11px}.quick-actions button{font-size:9px;border:1px solid #e6ddd1;border-radius:6px;padding:7px 10px;color:#9a8268;background:#faf6ef}.quick-actions button:hover{background:#f0e5d8}.quick-actions button>span{margin-left:12px}.composer{display:flex;align-items:center;gap:12px;max-width:680px;margin:auto;background:#fff;border:1px solid #e3dad0;border-radius:12px;padding:9px 10px 9px 16px;box-shadow:0 4px 16px #9b7c5710;transition:box-shadow .2s,border-color .2s}.composer:focus-within{border-color:#bd8a70;box-shadow:0 0 0 3px #c2957012}.key-symbol{font-size:24px;color:#c1ad96;line-height:25px}.composer textarea{width:100%;min-width:0;border:0;outline:0;background:transparent;font-size:11px;color:#605348;padding:8px 0;line-height:22px}.composer textarea::placeholder{color:#b3a99b}.composer button{display:grid;place-items:center;border:0;border-radius:8px;background:var(--red);color:#fff;width:37px;height:37px;flex-shrink:0}.composer button:hover{background:#a62726}.input-hint{font-size:8px;color:#a59886;text-align:center;line-height:1.8;margin:10px 0 0}.input-hint span{margin-right:3px}.input-hint strong{font-weight:550;color:#9c846a}.bottom-note{text-align:center;font-size:7px;color:#c1b7aa;margin-top:12px}.bottom-note span{margin:0 6px}.toast{position:fixed;bottom:125px;left:calc(50% + 135px);transform:translateX(-50%);background:#413d36;color:white;padding:10px 18px;border-radius:8px;font-size:11px;opacity:0;pointer-events:none;transition:opacity .2s;max-width:90vw;z-index:9}.toast.visible{opacity:1}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@keyframes appear{from{transform:translateY(5px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes pulse{50%{opacity:.3}}@media(min-width:1500px){.intro{padding-top:55px}.intro h1{font-size:40px}.bubble{font-size:12px}.messages,.day-label,.composer,.quick-actions{max-width:760px}.sidebar{width:285px}.guide{padding-top:40px}.try-panel{margin-top:15px}}@media(max-height:800px) and (min-width:761px){.sidebar{padding-top:23px}.new-chat{margin:25px 0}.guide{padding-top:20px;padding-bottom:8px}.guide h2{font-size:16px}.guide li{margin:11px 0}.try-panel{padding-top:15px}.intro{padding-top:25px;padding-bottom:15px}.intro-mark{width:44px;height:44px;font-size:26px}.intro h1{font-size:29px}.eyebrow{margin-top:14px!important}.intro>p:last-child{margin-top:10px}.day-label{margin-bottom:18px}}@media(max-width:1000px){.sidebar{width:235px;padding-left:17px;padding-right:17px}.brand{font-size:18px}.brand small{font-size:6px}.topbar{padding:0 25px}.conversation{padding-left:22px;padding-right:22px}.composer-area{padding-left:25px;padding-right:25px}.toast{left:calc(50% + 117px)}}@media(max-width:760px){body{min-height:0}.sidebar{display:none}.topbar{height:60px;padding:0 19px}.topbar>div{gap:8px}.topbar a{font-size:9px}.topbar a span{margin-left:5px}.demo-banner{font-size:8px;padding:7px 13px}.conversation{padding:0 16px 20px}.intro{padding:28px 0 20px}.intro-mark{width:47px;height:47px;font-size:28px}.intro h1{font-size:30px;letter-spacing:-1.1px}.intro>p:last-child{font-size:10px}.eyebrow{font-size:7px!important;letter-spacing:1.6px!important}.day-label{margin-top:0;margin-bottom:22px}.message{gap:8px}.avatar{width:25px;height:25px;border-radius:8px;font-size:15px}.bubble{padding:13px 14px;font-size:11px;line-height:1.85}.sender{font-size:8px}.composer-area{padding:9px 14px max(10px,env(safe-area-inset-bottom))}.composer{padding:7px 8px 7px 12px;gap:9px}.composer textarea{font-size:16px;padding:5px 0;letter-spacing:-.45px}.composer textarea::placeholder{font-size:11px;letter-spacing:0}.input-hint{font-size:7px;max-width:340px;margin:8px auto 0}.bottom-note{margin-top:7px;font-size:6px}.quick-actions{margin-bottom:9px}.quick-actions button{font-size:8px}.code-number{font-size:29px;letter-spacing:5px}.code-card{padding:12px}.code-footer{font-size:7px}.toast{left:50%;bottom:150px}.header-mark{color:var(--red)}.code-head{gap:8px}.intro-mark>span{font-size:16px}.new-mobile{display:inline}}@media(prefers-reduced-motion:reduce){*{animation:none!important;scroll-behavior:auto!important;transition:none!important}}
.inline-actions a.zalo-btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:44px;padding:10px 14px;background:#0068e8;border:1px solid #0068e8;color:#fff;font-size:11px;font-weight:600;box-shadow:0 3px 9px #0068e81a}.inline-actions a.zalo-btn:before{content:"Z";display:grid;place-items:center;flex-shrink:0;width:22px;height:22px;background:#fff;color:#0068e8;border-radius:7px 7px 7px 2px;font-size:14px;font-weight:800;line-height:1}.inline-actions a.zalo-btn:hover{background:#0058c4;border-color:#0058c4}.inline-actions a.zalo-btn:focus-visible{outline:3px solid #81b8ff;outline-offset:3px}@media(max-width:760px){.inline-actions a.zalo-btn{font-size:10px;padding:10px 12px}}
.nav-label{margin-top:35px}
.inline-actions button{min-height:40px;padding:9px 13px;background:#fbe8e4;border:1px solid #e5b2a9;color:#9b302d;font-size:10px;font-weight:550;box-shadow:0 2px 4px #b7332810;transition:background .15s,box-shadow .15s}.inline-actions button:hover{background:#f5d7d1;border-color:#cf8276;box-shadow:0 3px 7px #b733281a}.inline-actions button:first-child{background:#bd302f;border-color:#bd302f;color:#fff}.inline-actions button:first-child:hover{background:#a62726;border-color:#a62726}.inline-actions button:focus-visible{outline:3px solid #e99790;outline-offset:3px}
.code-number{text-align:center;padding-left:7px}@media(max-width:760px){.code-number{padding-left:5px}}
.inline-actions{align-items:center;gap:8px}.inline-actions button,.inline-actions a.zalo-btn{min-height:36px;padding:7px 11px;border-radius:6px;font-size:10px;font-weight:550;line-height:20px;box-shadow:none}.inline-actions button{background:#596574;border-color:#596574;color:#fff}.inline-actions button:hover{background:#46515f;border-color:#46515f;color:#fff;box-shadow:none}.inline-actions button:first-child{background:#bd302f;border-color:#bd302f;color:#fff}.inline-actions button:first-child:hover{background:#a62726;border-color:#a62726}.inline-actions a.zalo-btn{gap:7px}.inline-actions a.zalo-btn:before{width:18px;height:18px;font-size:12px;border-radius:5px 5px 5px 2px}@media(max-width:760px){.inline-actions button,.inline-actions a.zalo-btn{min-height:40px;padding:9px 11px;font-size:10px}}
.quick-actions{flex-wrap:wrap}.quick-actions #contact{background:#e3eaf3;border-color:#a5b7cc;color:#304d6d;font-weight:550}.quick-actions #contact:hover{background:#cfdced;border-color:#839bb8}.inline-actions a.contact-link{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:36px;padding:7px 11px;border-radius:6px;font-size:10px;font-weight:550;line-height:20px;color:#fff;box-shadow:none}.inline-actions a.phone-btn{background:#187247;border-color:#187247}.inline-actions a.phone-btn:hover{background:#105b37;border-color:#105b37}.inline-actions a.phone-btn:before{content:"☎";font-size:16px;line-height:18px}.inline-actions a.telegram-btn{background:#087da9;border-color:#087da9}.inline-actions a.telegram-btn:hover{background:#06658a;border-color:#06658a}.inline-actions a.telegram-btn:before{content:"➤";font-size:15px;line-height:18px;transform:rotate(-25deg)}@media(max-width:760px){.inline-actions a.contact-link{min-height:40px;padding:9px 11px}}
.code-card [hidden]{display:none!important}.expired-content{padding:17px 0 9px;text-align:center}.expired-content>p{font-size:11px;font-weight:550;color:#93483c;line-height:1.9}.expired-content .inline-actions{justify-content:center;margin-top:12px}
.topbar>.shop-contact{position:relative;display:block;flex-shrink:0;z-index:20}.shop-contact-toggle{display:inline-flex;align-items:center;gap:9px;min-height:34px;padding:7px 11px;border:1px solid #d8aaa0;border-radius:7px;background:#f3e2dc;color:#8b302b;font-size:10px;font-weight:550;line-height:18px}.shop-contact-toggle:hover,.shop-contact-toggle[aria-expanded="true"]{background:#ebccc3;border-color:#bf8072}.contact-chevron{transition:transform .15s}.shop-contact-toggle[aria-expanded="true"] .contact-chevron{transform:rotate(180deg)}.shop-contact-panel{position:absolute;right:0;top:calc(100% + 10px);width:230px;max-width:calc(100vw - 28px);padding:7px;border:1px solid #e3d9ce;border-radius:11px;background:#fffdf9;box-shadow:0 10px 30px #49372724;z-index:30}.shop-contact-panel[hidden]{display:none}.shop-contact-heading{padding:9px 10px 12px;margin-bottom:4px;border-bottom:1px solid #eee6db}.shop-contact-heading>span{display:block;font-size:8px;font-weight:500;letter-spacing:1px;color:#9c8975}.topbar .shop-contact-heading>strong{display:block;margin-top:6px;font-size:14px;font-weight:600;letter-spacing:.5px;color:#423c35}.topbar .shop-contact-panel a{display:flex;align-items:center;gap:10px;min-height:43px;padding:7px 9px;border-radius:7px;font-size:11px;font-weight:500;color:#49433d}.topbar .shop-contact-panel a:hover{background:#f1ece5}.topbar .shop-contact-panel a>span{margin-left:0}.topbar .shop-contact-panel a>.channel-arrow{margin-left:auto;font-size:12px;color:#9d9183}.channel-icon{display:grid;place-items:center;flex-shrink:0;width:27px;height:27px;border-radius:7px;color:#fff;font-size:15px;font-weight:700}.channel-zalo{background:#0068e8}.channel-phone{background:#187247}.channel-telegram{background:#087da9}.shop-contact-panel a:focus-visible{outline:2px solid #bd8a70;outline-offset:-2px}@media(max-width:760px){.shop-contact-toggle{min-height:36px;padding:7px 9px;font-size:9px;gap:6px}.shop-contact-panel{top:calc(100% + 8px)}.topbar .shop-contact-panel a{min-height:44px}}
.auto-tag{display:inline-flex;align-items:center;gap:5px;padding:4px 7px;background:#dcf5e4;border-color:#98d5ac;color:#136d35;font-size:9px;font-weight:600;line-height:13px}.auto-tag:before{content:"";width:5px;height:5px;flex-shrink:0;border-radius:50%;background:#159447;box-shadow:0 0 0 2px #15944714}
.shop-contact-toggle{background:#0068e8;border-color:#0068e8;color:#fff;gap:8px}.shop-contact-toggle:hover,.shop-contact-toggle[aria-expanded="true"]{background:#0058c4;border-color:#0058c4;color:#fff}.shop-contact-toggle:before{content:"";width:6px;height:6px;flex-shrink:0;border-radius:50%;background:#70f39c;box-shadow:0 0 0 2px #ffffff24}.shop-contact-toggle:focus-visible{outline:3px solid #81b8ff;outline-offset:3px}
.topbar>.assistant-identity{display:flex;align-items:center;gap:10px;min-width:0}
.assistant-identity .header-mark{display:grid;place-items:center;flex-shrink:0;width:32px;height:32px;border:1px solid #ecd9d0;border-radius:10px;background:#f6eae3;color:#bd302f;font-size:19px;line-height:1}
.assistant-labels{display:flex;flex-direction:column;align-items:flex-start;gap:3px;min-width:0}
.assistant-labels strong{font-size:12px;font-weight:650;line-height:1.2;white-space:nowrap;color:#34312e}
.assistant-labels .auto-tag{border:0;border-radius:0;background:transparent;padding:0;color:#13733d;font-size:9px;font-weight:650;line-height:1.3;white-space:nowrap}
.assistant-labels .auto-tag:before{width:6px;height:6px;background:#18a34a;box-shadow:0 0 0 2px #18a34a1c}
.shop-contact-toggle{min-height:34px;padding:6px 10px;border-radius:8px;font-size:10px;font-weight:650;line-height:18px;white-space:nowrap;box-shadow:0 2px 6px #0068e81a}
.shop-contact-toggle:before{width:6px;height:6px}
.contact-chevron{width:11px;height:11px}
@media(max-width:760px){.topbar{height:62px;padding:0 14px;gap:10px}.topbar>.assistant-identity{gap:8px}.assistant-identity .header-mark{width:30px;height:30px;font-size:18px}.assistant-labels strong{font-size:11px}.assistant-labels .auto-tag{font-size:9px}.shop-contact-toggle{min-height:34px;padding:6px 9px;font-size:9px;gap:6px}}
@media(max-width:340px){.topbar{padding:0 10px;gap:6px}.topbar>.assistant-identity{gap:6px}.assistant-labels strong{font-size:10px}.shop-contact-toggle{padding:6px 7px;font-size:8.5px}}

/* Readable code lifetime and remaining requests. */
.code-head .ttl{display:inline-flex;align-items:center;min-height:27px;padding:3px 9px;border:1px solid #b9d9bd;border-radius:7px;background:#edf8ef;color:#186a35;font-size:12px;font-weight:700;letter-spacing:0;line-height:1.3;white-space:nowrap}
.code-card.expired .ttl{border-color:#e9b5ab;background:#fff0eb;color:#a4362e}
.code-footer{align-items:center;flex-wrap:wrap;gap:8px 12px;margin-top:12px}
.code-footer .quota-count{display:inline-flex;align-items:baseline;gap:4px;border:1px solid #d6ddd2;border-radius:7px;background:#f0f5eb;padding:5px 8px;color:#345a3f;font-size:11px;font-weight:600;line-height:1.5}
.code-footer .quota-count strong{color:#176331;font-size:15px;font-weight:800;line-height:1}
.code-footer .demo-note{font-size:9px;color:#817b71}
@media(max-width:760px){.code-head .ttl{font-size:12px}.code-footer .quota-count{font-size:10px}.code-footer .quota-count strong{font-size:15px}}
.verification-pending>p:first-child{display:inline;margin:0}
.verification-pending .typing{display:inline-flex;vertical-align:middle;padding:0 0 0 7px}
.verification-pending .wait-note{display:block;margin-top:8px}

.composer textarea{font-family:inherit;resize:none;max-height:132px;overflow-y:auto}