@layer reset, base, components, responsive;
@layer reset { *{box-sizing:border-box}body,h1,h2,h3,p{margin:0}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}[hidden]{display:none!important} }
@layer base {
:root{--bg:#0c100f;--surface:#141a17;--surface-2:#1d2520;--border:#28322c;--text:#eef3ee;--text-muted:#97a59c;--accent:#b4f0b0;--danger:#ff9a9a;--success:#a6e6af;--radius:16px;--shadow:0 24px 90px #0004;color-scheme:dark;font-family:Inter,"Segoe UI",system-ui,-apple-system,sans-serif;font-size:15px}body{background:var(--bg);color:var(--text);line-height:1.5}button{border:0;color:inherit;background:none}button:disabled{cursor:not-allowed;opacity:.4}button,a,input,textarea,select{transition:background .16s,border-color .16s,color .16s,box-shadow .16s}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--accent);outline-offset:4px}input,select{width:100%;border:1px solid var(--border);background:#101512;border-radius:10px;padding:13px 14px;color:var(--text)}input::placeholder,textarea::placeholder{color:#728078}input:focus,textarea:focus,select:focus{border-color:#769976}input[readonly]{color:var(--text-muted);background:var(--surface-2)}label{display:block;font-size:13px;font-weight:600;margin:20px 0 8px}h1,h2,h3{font-weight:600;letter-spacing:-.035em}p{color:var(--text-muted)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.eyebrow{font-size:10px;font-weight:650;letter-spacing:.16em;color:var(--text-muted)}.status-dot{display:inline-block;width:6px;height:6px;flex-shrink:0;border-radius:50%;background:var(--accent)}.status-dot.offline{background:var(--danger)} }
@layer components {
.brand{display:flex;align-items:center;gap:12px;font-size:25px;font-weight:650;letter-spacing:-.06em}.brand-dot{color:var(--accent)}.brand-mark{width:48px;height:48px;border-radius:15px;display:inline-flex;align-items:center;justify-content:center;color:#172b1c;background:var(--accent);font-size:40px;line-height:1;font-weight:700;letter-spacing:-.11em;padding-bottom:5px;padding-right:5px;flex-shrink:0}.brand-mark span{font-size:20px;margin-left:0;margin-top:-15px}.brand-mark.small{width:40px;height:40px;border-radius:12px;font-size:34px}.primary{background:var(--accent);color:#14271a;padding:12px 20px;border-radius:10px;font-weight:650;font-size:13px;display:inline-flex;align-items:center;justify-content:center;gap:30px}.primary:hover:not(:disabled){background:#cbf8c8;box-shadow:0 3px 18px #b4f0b012}.wide{width:100%}.quiet-button{padding:9px 12px;border-radius:9px;color:var(--text-muted);font-size:13px}.quiet-button:hover{background:var(--surface-2);color:var(--text)}.text-button{color:var(--text-muted);padding:7px;font-size:12px;border-radius:6px}.text-button:hover{color:var(--accent);background:var(--surface-2)}.icon-button{font-size:24px;color:var(--text-muted);width:32px;height:32px;border-radius:8px}.icon-button:hover{background:var(--surface-2);color:var(--text)}.danger-text{color:var(--danger)}.danger-button{background:#492a2c;color:#ffcaca;padding:11px 17px;border-radius:9px;font-size:13px;font-weight:600}.danger-button:hover{background:#643236}.form-error{font-size:13px;color:var(--danger);min-height:20px;margin:13px 0}.field-note{font-size:11px;margin-top:8px;line-height:1.6}.optional{font-weight:400;color:var(--text-muted);margin-left:7px}.empty-state{text-align:center;padding:30px 16px;font-size:13px}.count-pill{border:1px solid var(--border);border-radius:6px;padding:1px 7px;color:var(--text-muted);font-size:11px;font-weight:500;letter-spacing:0}.avatar{display:grid;place-items:center;width:36px;height:36px;flex-shrink:0;border-radius:12px;background:var(--surface-2);font-size:13px;font-weight:650;color:var(--accent)}.avatar.mini{width:29px;height:29px;border-radius:9px;font-size:11px}.avatar[data-tone="1"]{background:#292d43;color:#bfc7ff}.avatar[data-tone="2"]{background:#423125;color:#edc69e}.avatar[data-tone="3"]{background:#3b2940;color:#dfb2e8}.avatar[data-tone="4"]{background:#233840;color:#a3d8e8}.avatar[data-tone="0"]{background:#283a29;color:#b4e4b3}
.login-page{min-height:100dvh;display:grid;place-items:center;background:radial-gradient(ellipse at 50% 30%,#263b2736,transparent 60%),var(--bg);overflow-x:hidden}.login-wrap{width:min(420px,calc(100% - 40px));padding:55px 0;z-index:1}.login-brand{justify-content:center;margin-bottom:38px}.login-card{border:1px solid var(--border);background:#141a17e8;border-radius:22px;padding:35px;box-shadow:var(--shadow)}.login-card .eyebrow{display:flex;align-items:center;gap:8px;font-size:9px}.login-card h1{font-size:29px;line-height:1.25;margin:19px 0 12px}.intro{font-size:13px;line-height:1.8;margin-bottom:24px}.password-field{position:relative}.password-field input{padding-right:65px}.password-field button{position:absolute;right:8px;top:8px}.login-note{border-top:1px solid var(--border);margin-top:26px;padding-top:21px;font-size:10px;color:var(--text-muted);display:flex;gap:8px;align-items:center}.login-note span{font-size:17px;color:var(--accent)}.login-footer{text-align:center;font-size:11px;letter-spacing:.04em;margin-top:27px;color:#6f8075}.login-decoration{position:fixed;font-size:750px;line-height:1;right:-40px;bottom:-270px;pointer-events:none;color:#b4f0b003;font-family:Georgia,serif}
.chat-page{height:100dvh;overflow:hidden}.chat-shell{height:100%;max-width:1480px;margin:auto;border-left:1px solid var(--border);border-right:1px solid var(--border);display:flex;flex-direction:column}.chat-header{height:89px;flex-shrink:0;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 33px;background:#101612}.room-brand{display:flex;gap:14px;align-items:center}.room-brand h1{font-size:16px;letter-spacing:-.02em}.room-meta{display:flex;align-items:center;gap:7px;margin-top:4px;font-size:10px;color:var(--text-muted)}.room-meta>span:last-child{font-size:9px;letter-spacing:.1em}.meta-divider{color:#435248;padding:0 3px}.header-actions{display:flex;align-items:center;gap:15px}.profile-button{display:flex;align-items:center;gap:10px;border:1px solid var(--border);border-radius:10px;padding:6px 10px;font-size:12px}.profile-button:hover{background:var(--surface-2)}.profile-name{max-width:140px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-main{display:flex;flex:1;min-height:0}.conversation{position:relative;flex:1;min-width:0;display:flex;flex-direction:column}.messages{flex:1;overflow:auto;padding:0 42px 24px;scrollbar-width:thin;scrollbar-color:#334437 transparent;overscroll-behavior:contain}.history-top{text-align:center;min-height:38px;padding-top:9px;font-size:11px;color:var(--text-muted)}.room-welcome{padding:35px 0 39px;text-align:center}.welcome-icon{width:52px;height:52px;border:1px solid #38533c;background:#18291b;border-radius:17px;color:var(--accent);font-size:30px;margin:0 auto 20px}.room-welcome .eyebrow{font-size:9px}.room-welcome h2{font-size:23px;margin:8px 0}.room-welcome p{font-size:12px}.date-divider{display:flex;align-items:center;gap:15px;margin:20px 0 25px;font-size:10px;color:#829588}.date-divider:before,.date-divider:after{content:"";height:1px;background:var(--border);flex:1}.message-row{display:flex;gap:11px;margin:19px 0;align-items:flex-start}.message-row.self{flex-direction:row-reverse}.message-body{max-width:min(78%,680px);min-width:0}.message-heading{display:flex;align-items:center;gap:9px;margin-bottom:6px;font-size:12px;flex-wrap:wrap}.message-name{font-weight:600;color:#e0eae1}.message-heading time{font-size:10px;color:#72877a}.message-row.self .message-heading{justify-content:flex-end}.message-content{white-space:pre-wrap;overflow-wrap:anywhere;background:#1a221d;border:1px solid #26332b;border-radius:0 13px 13px 13px;padding:11px 15px;font-size:14px;line-height:1.65;color:#dae4dc}.self .message-content{background:#24352a;border-color:#354c3a;border-radius:13px 0 13px 13px;color:#e3efe2}.message-row.grouped{margin-top:-12px}.grouped .avatar{visibility:hidden}.grouped .message-heading{display:none}.message-delete{font-size:10px;color:#8e9c93;padding:3px 0;display:block;opacity:0}.message-row:hover .message-delete,.message-delete:focus-visible{opacity:1}.self .message-delete{margin-left:auto}.composer{margin:0 32px 0;padding:17px 0 19px;flex-shrink:0;background:var(--bg)}.composer-input{display:flex;align-items:flex-end;border:1px solid #354139;border-radius:14px;padding:8px;background:#171f1a;box-shadow:0 5px 25px #0002}.composer-input:focus-within{border-color:#67896c}.composer textarea{flex:1;width:0;max-height:125px;min-height:39px;border:0;outline:none!important;background:none;padding:9px 8px;color:var(--text);resize:none;line-height:21px;font-size:13px}.send-button{width:36px;height:36px;border-radius:10px;background:var(--accent);color:#203a25;font-size:24px;flex-shrink:0;line-height:1;margin:2px}.send-button:hover:not(:disabled){background:#d3f9cf}.composer-footer{display:flex;justify-content:space-between;gap:10px;margin-top:10px;font-size:9px;color:#778c7c}.composer-footer>span:first-child{display:flex;align-items:center;gap:6px}.composer-footer .status-dot{width:4px;height:4px;background:#718879}.key-hint{border:1px solid var(--border);border-radius:3px;padding:1px 4px;margin-left:3px}.new-messages{position:absolute;bottom:125px;left:50%;transform:translateX(-50%);border:1px solid #587b59;background:#243c29;color:var(--accent);padding:8px 16px;border-radius:20px;box-shadow:var(--shadow);font-size:12px}.room-aside{width:275px;flex-shrink:0;border-left:1px solid var(--border);padding:39px 28px;display:flex;flex-direction:column;background:#101612}.room-aside h2{font-size:27px;line-height:1.25;margin:15px 0}.room-aside>p{font-size:11px;line-height:1.9}.aside-rule{height:1px;background:var(--border);margin:31px 0 23px}.members-title{display:flex;align-items:center;justify-content:space-between}.members-title h3{font-size:12px;letter-spacing:0}.online-members{overflow:auto;margin-top:18px;scrollbar-width:thin}.online-person{display:flex;align-items:center;gap:10px;margin-bottom:17px}.online-person .person-label{min-width:0;flex:1;overflow-wrap:anywhere;font-size:12px}.online-person small{display:block;font-size:10px;color:var(--text-muted);margin-top:2px}.online-person .status-dot{width:5px;height:5px}.aside-bottom{margin-top:auto;padding-top:30px;display:flex;gap:10px;align-items:flex-start}.aside-bottom>span{color:var(--accent);font-size:19px}.aside-bottom p{font-size:10px;line-height:1.8}
dialog{border:1px solid #37473b;border-radius:18px;background:var(--surface);color:var(--text);padding:28px;width:min(440px,calc(100% - 32px));box-shadow:var(--shadow);max-height:calc(100dvh - 40px);overflow:auto}dialog::backdrop{background:#030905b8;backdrop-filter:blur(5px)}.modal-header{display:flex;align-items:flex-start;justify-content:space-between;gap:15px;margin-bottom:23px}.modal-header h2{font-size:22px;margin-top:5px}.modal-header .eyebrow{font-size:9px}.modal-actions{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-top:27px}#confirm-description{font-size:13px;line-height:1.8}.toasts{position:fixed;bottom:25px;right:25px;z-index:100;display:flex;flex-direction:column;gap:8px;max-width:calc(100% - 40px)}.toast{padding:13px 18px;border:1px solid #46644c;background:#1d3023;box-shadow:var(--shadow);border-radius:11px;color:#d9f1db;font-size:12px;animation:appear .16s ease-out}.toast.error{background:#392728;border-color:#704144;color:#ffd1d1}@keyframes appear{from{transform:translateY(6px);opacity:0}to{transform:translateY(0);opacity:1}}
.admin-shell{display:flex;min-height:100dvh;max-width:1600px;margin:auto}.admin-sidebar{width:224px;flex-shrink:0;border-right:1px solid var(--border);padding:31px 22px;background:#101612;display:flex;flex-direction:column;position:sticky;top:0;height:100dvh}.admin-sidebar .brand{font-size:22px}.sidebar-caption{font-size:9px;margin:50px 0 16px 10px}.sidebar-link{display:flex;align-items:center;gap:12px;padding:12px;border-radius:10px;font-size:12px;color:var(--text-muted);margin:4px 0}.sidebar-link>span:last-child:not(:first-child){margin-left:auto}.sidebar-link:hover{background:var(--surface-2)}.sidebar-link.active{color:var(--accent);background:#203124}.sidebar-bottom{margin-top:auto;display:flex;flex-direction:column;align-items:flex-start;gap:14px}.admin-label{font-size:9px;letter-spacing:.12em;border:1px solid var(--border);border-radius:5px;padding:5px 8px;color:var(--text-muted)}.admin-main{padding:54px 44px;flex:1;min-width:0}.admin-heading{display:flex;align-items:center;justify-content:space-between;gap:20px}.admin-heading h1{font-size:35px;margin:8px 0}.admin-heading p{font-size:12px}.admin-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:33px 0}.admin-stats>div{background:var(--surface);border:1px solid var(--border);border-radius:13px;padding:20px 23px}.admin-stats span{font-size:11px;color:var(--text-muted)}.admin-stats strong{display:block;font-size:29px;font-weight:500;margin-top:8px;letter-spacing:-.04em}.admin-stats>div:last-child strong{color:var(--accent)}.people-panel{border:1px solid var(--border);border-radius:15px;background:var(--surface);overflow:hidden}.people-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 23px 12px}.people-toolbar h2{font-size:14px;letter-spacing:0;display:flex;align-items:center;gap:10px;white-space:nowrap}.search-field{display:flex;align-items:center;margin:0;gap:8px;font-weight:400;border:1px solid var(--border);border-radius:9px;padding:0 10px;background:#101512;width:280px}.search-field>span:first-child{font-size:22px;color:var(--text-muted)}.search-field input{border:0;background:none;padding:10px 0;font-size:11px;min-width:0;outline-offset:1px}.admin-privacy{font-size:10px;padding:0 23px 20px;color:#7e9385}.table-wrap{width:100%}.users-table{width:100%;border-collapse:collapse;text-align:left;font-size:11px;table-layout:fixed}.users-table th{color:#85998d;background:#101612;font-size:9px;font-weight:500;letter-spacing:.03em;padding:13px 15px;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.users-table th:first-child{width:24%;padding-left:23px}.users-table th:nth-child(2){width:10%}.users-table th:nth-child(3){width:11%}.users-table th:nth-child(4){width:18%}.users-table th:nth-child(5){width:15%}.users-table th:nth-child(6){width:15%}.users-table th:last-child{width:7%}.users-table td{padding:19px 15px;border-bottom:1px solid var(--border);overflow-wrap:anywhere;color:#b6c5bb}.users-table tr:last-child td{border-bottom:0}.users-table tbody tr:hover{background:#1b241e}.users-table td:first-child{padding-left:23px}.table-person{display:flex;align-items:center;gap:10px}.table-person .person-label{min-width:0}.table-person strong{display:block;color:var(--text);font-size:12px;font-weight:550}.table-person small{font-size:10px;color:var(--text-muted)}.role-badge{font-size:10px;display:inline-flex;align-items:center;gap:5px}.role-badge.admin{color:var(--accent)}.status-badge{display:inline-flex;align-items:center;gap:5px;font-size:10px}.status-badge:before{content:"";width:4px;height:4px;background:#a1d6a4;border-radius:50%}.status-badge.disabled{color:#d6b1a0}.status-badge.disabled:before{background:#d6b1a0}.manage-user{font-size:20px;width:26px;height:30px;border-radius:6px;color:var(--text-muted)}.manage-user:hover{background:#304034;color:var(--accent)}.admin-footer{font-size:10px;margin-top:23px;text-align:center;color:#738779}.detail-grid{display:grid;grid-template-columns:110px 1fr;gap:13px;font-size:12px;margin:10px 0 24px}.detail-grid dt{color:var(--text-muted)}.detail-grid dd{margin:0;overflow-wrap:anywhere}.detail-actions{display:grid;gap:8px}.detail-actions button{text-align:left;border:1px solid var(--border);padding:11px;border-radius:8px;font-size:12px}.detail-actions button:hover{background:var(--surface-2)} }
@layer responsive {
@media(min-width:1500px){.chat-shell{margin:25px auto;height:calc(100dvh - 50px);border:1px solid var(--border);border-radius:20px;overflow:hidden}}@media(max-width:1100px){.room-aside{width:230px;padding:30px 23px}.messages{padding-left:26px;padding-right:26px}.admin-sidebar{width:185px;padding:25px 15px}.admin-main{padding:35px 25px}.users-table th,.users-table td{padding-left:8px;padding-right:8px}.table-person{gap:7px}.table-person .avatar{display:none}}@media(max-width:850px){.room-aside{display:none}.chat-header{height:78px;padding:0 23px}.admin-sidebar{width:160px}.admin-main{padding:30px 20px}.people-toolbar{align-items:flex-start;flex-direction:column;gap:14px}.search-field{width:100%}.users-table th:nth-child(6),.users-table td:nth-child(6){display:none}.users-table th:first-child{width:26%}.users-table th:nth-child(2){width:11%}.users-table th:nth-child(3){width:13%}.users-table th:nth-child(4){width:24%}.users-table th:nth-child(5){width:18%}.users-table th:last-child{width:8%}.admin-stats{gap:8px}.admin-stats>div{padding:15px 13px}}@media(max-width:600px){.chat-shell{border:0}.chat-header{padding:0 16px;height:72px}.room-brand{gap:10px}.room-brand h1{font-size:14px}.room-meta{font-size:9px}.room-meta>span:last-child,.meta-divider{display:none}.header-actions{gap:5px}.profile-name{display:none}.profile-button{padding:5px 6px;gap:5px}.header-actions .quiet-button{font-size:11px;padding:7px}.messages{padding:0 16px 15px}.room-welcome{padding:22px 0 26px}.room-welcome h2{font-size:19px}.room-welcome p{font-size:11px}.message-row{gap:8px}.message-row>.avatar{width:28px;height:28px;border-radius:9px;font-size:10px}.message-body{max-width:calc(100% - 50px)}.message-content{font-size:14px;padding:10px 12px}.message-heading{font-size:11px}.message-delete{opacity:1}.composer{margin:0 12px;padding:11px 0 max(12px,env(safe-area-inset-bottom))}.composer-footer{font-size:8px}.composer-footer>span:first-child{max-width:68%}.composer-footer .key-hint{display:none}.admin-shell{display:block}.admin-sidebar{height:auto;position:static;width:100%;padding:16px;border-right:0;border-bottom:1px solid var(--border);flex-direction:row;align-items:center;justify-content:space-between;gap:10px}.admin-sidebar .brand{font-size:20px}.admin-sidebar .brand-mark{width:32px;height:32px;font-size:29px}.sidebar-caption,.sidebar-bottom,.admin-sidebar .active{display:none}.admin-sidebar nav{display:flex}.sidebar-link{padding:8px;font-size:11px}.admin-main{padding:29px 16px}.admin-heading h1{font-size:29px}.admin-heading p{font-size:11px;max-width:195px}.admin-heading .primary{padding:10px 12px;font-size:11px;white-space:nowrap}.admin-stats{margin:24px 0;gap:8px}.admin-stats>div{padding:13px 11px}.admin-stats span{font-size:9px}.admin-stats strong{font-size:24px}.people-toolbar{padding:18px 16px 12px}.admin-privacy{padding-left:16px;padding-right:16px}.users-table,.users-table tbody{display:block}.users-table thead{display:none}.users-table tr{display:grid;grid-template-columns:1fr 1fr 32px;padding:18px 16px;gap:9px 12px;border-bottom:1px solid var(--border)}.users-table tr:last-child{border-bottom:0}.users-table td{display:block;padding:0!important;border:0;font-size:11px}.users-table td:first-child{grid-column:1/3;grid-row:1}.users-table td:nth-child(2){grid-column:1;grid-row:2}.users-table td:nth-child(3){grid-column:2;grid-row:2}.users-table td:nth-child(4){grid-column:1/3;grid-row:3}.users-table td:nth-child(4):before{content:"IP gần nhất · ";color:var(--text-muted)}.users-table td:nth-child(5){grid-column:1/3;grid-row:4}.users-table td:nth-child(5):before{content:"Truy cập cuối · ";color:var(--text-muted)}.users-table td:nth-child(6){display:block;grid-column:1/3;grid-row:5}.users-table td:nth-child(6):before{content:"Ngày tạo · ";color:var(--text-muted)}.users-table td:last-child{grid-column:3;grid-row:1}.table-person .avatar{display:grid}.table-person{gap:11px}.login-wrap{padding:30px 0}.login-card{padding:27px}.login-card h1{font-size:27px}.login-brand{margin-bottom:26px}.toasts{right:16px;bottom:16px}dialog{padding:23px}.modal-header h2{font-size:21px}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}} }