:root{--navy:#122b40;--navy2:#19364d;--teal:#006a73;--teal2:#079399;--mint:#e9f7f8;--bg:#f5f8fa;--soft:#edf4f6;--border:#e1eaef;--slate:#71869b;--dark:#112a40;--shadow:0 9px 30px rgba(22,54,75,.045)}
*{box-sizing:border-box}html,body{margin:0;width:100%;min-height:100%;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--dark)}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:wait;opacity:.65}input:focus,button:focus-visible{outline:3px solid #77c8ce;outline-offset:2px}svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}h1,h2,h3,p{margin-top:0}.muted{color:var(--slate)}[hidden]{display:none!important}
.primary-button{width:100%;display:flex;align-items:center;justify-content:center;gap:12px;border:0;background:linear-gradient(110deg,#00636d,#05838b);border-radius:12px;padding:14px 18px;color:white;font-weight:750;text-decoration:none;min-height:48px;transition:filter .15s}.primary-button:hover,.upload-button:hover{filter:brightness(1.08)}.primary-button span{font-size:21px}.secondary-button{background:#f1f7fa;border:1px solid #d8e7ec;color:var(--teal);border-radius:10px;font-weight:750;padding:10px 16px}.notice{padding:13px 15px;border-radius:10px;font-size:13px;line-height:1.6}.notice.error{background:#fff0f0;color:#9e313c}.notice.success{background:#e8f8f0;color:#23684d}.small{font-size:12px}
/* LOGIN */
.login-body{background:#fff}.login-shell{height:100dvh;min-height:550px;display:grid;grid-template-columns:47% 53%}.login-art{background:linear-gradient(149deg,#132d43 1%,#005a65 76%,#0a8b90);padding:50px max(8%,60px);display:flex;flex-direction:column;justify-content:space-between;color:#f0fcfd;overflow:hidden;position:relative}.login-art:after{content:"";position:absolute;width:650px;height:650px;border:1px solid #ffffff22;border-radius:50%;right:-420px;top:25%}.art-label{font-size:11px;letter-spacing:4px;font-weight:850;color:#bee5e6}.login-art h2{font-size:clamp(40px,4vw,64px);line-height:1.09;letter-spacing:-1.5px;max-width:500px;margin:28px 0 18px}.login-art p{font-size:16px;max-width:330px;line-height:1.65;color:#c4e1e4}.login-art small{color:#aed4d6}.art-bars{display:flex;align-items:flex-end;gap:9px;height:85px}.art-bars i{display:block;width:24px;background:#a5dddb;transform:skewY(-30deg)}.art-bars i:first-child{height:26px}.art-bars i:nth-child(2){height:49px;background:#42b3b3}.art-bars i:last-child{height:76px;background:#0199a1}.login-main{display:flex;justify-content:center;align-items:center;padding:24px}.login-card{width:min(420px,100%);padding:24px}.login-logo{display:block;width:230px;max-width:80%;height:auto;object-fit:contain;object-position:left;margin-bottom:37px}.login-eyebrow{font-weight:850;letter-spacing:2px;font-size:11px;color:var(--teal);margin-bottom:11px}.login-card h1{font-size:34px;letter-spacing:-.8px;margin:0 0 8px}.login-card>p{color:var(--slate);font-size:14px;margin:0 0 30px}.stack-form{display:grid;gap:17px}.stack-form label,.install-form label,.admin-form label{display:grid;gap:8px;font-size:12px;font-weight:800;color:#335068}.stack-form input,.install-form input,.admin-form input{border:1px solid #dbe5eb;background:#f9fbfc;border-radius:11px;padding:13px 14px;color:var(--navy);width:100%;height:47px;font-size:14px}.stack-form .primary-button{margin-top:8px}.login-note{margin-top:27px;display:flex;align-items:center;gap:10px;color:#899aaa;font-size:12px;line-height:1.4}.login-note svg{height:20px;width:20px;flex-shrink:0;color:#19979c}
/* APPLICATION SHELL */
.app-body{height:100dvh;min-height:470px;overflow:hidden;background:#f8fafb}.workspace{height:100dvh;display:flex;flex-direction:column;overflow:hidden}.topbar{height:76px;min-height:76px;padding:0 clamp(18px,2.6vw,48px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e2ebee;background:#fff;z-index:2}.brand{display:flex;align-items:center;gap:19px;min-width:0}.brand img{width:160px;height:49px;object-fit:contain;object-position:left}.brand-separator{height:26px;width:1px;background:#d9e3e9}.brand>span{font-size:11px;font-weight:850;letter-spacing:2.9px;color:#8091a2}.topbar-actions{display:flex;gap:9px;align-items:center}.user-pill{padding:5px 12px 5px 5px;display:flex;align-items:center;gap:9px;background:#f1f7f8;border-radius:100px;font-size:13px;font-weight:700}.user-avatar{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;color:#0b6570;background:#d9f0f1;font-size:11px;font-weight:800}.icon-btn{width:41px;height:41px;background:#f5f8fa;border:1px solid #e6edf1;border-radius:12px;color:#2b526a;display:grid;place-items:center}.icon-btn:hover{background:#e4f2f4}.icon-btn svg{width:19px;height:19px}.main-layout{display:grid;grid-template-columns:minmax(0,7fr) minmax(315px,3fr);flex:1;min-height:0;min-width:0}.chat-panel{display:flex;flex-direction:column;min-height:0;min-width:0;background:var(--bg)}.files-panel{display:flex;flex-direction:column;min-height:0;min-width:0;border-left:1px solid var(--border);background:#fff}.panel-heading{padding:23px 30px 18px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);background:#fff;gap:12px}.chat-heading{min-height:109px}.files-heading{min-height:109px}.heading-label{letter-spacing:2px;color:#1c9297;font-size:10px;font-weight:850;margin-bottom:8px}.panel-heading h1{font-size:23px;letter-spacing:-.65px;margin:0 0 7px;font-weight:800;color:var(--navy)}.files-heading h1{font-size:20px}.subheading{color:#8294a6;font-size:12px}.status-dot{display:inline-block;background:#00b68d;width:7px;height:7px;border-radius:50%;margin-right:5px;vertical-align:middle;box-shadow:0 0 0 3px #dbf7ee}.mini-counter{border:1px solid #e3f0f2;background:#edf6f7;border-radius:14px;padding:8px 12px;color:#277078;display:flex;align-items:center;gap:6px;font-size:11px;font-weight:800}.mini-counter svg{width:17px;height:17px}.files-counter{background:#e9f5f6;color:#006870;border-radius:12px;padding:9px 13px;font-size:14px;font-weight:800}
/* MESSAGES */
.chat-feed{padding:26px clamp(22px,3vw,58px);flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;display:flex;flex-direction:column;gap:18px;scrollbar-color:#cadae0 transparent}.loading-message{margin:auto;font-size:13px;color:#8194a4}.empty-state{margin:auto;text-align:center;color:#8a9baa;font-size:13px;max-width:290px;line-height:1.6}.empty-state strong{display:block;color:#42647c;margin-bottom:5px;font-size:16px}.date-divider{display:flex;align-items:center;gap:15px;justify-content:center;font-size:11px;color:#73909d;font-weight:800;margin:4px 0 7px}.date-divider:before,.date-divider:after{content:"";height:1px;background:#dde8ed;flex:1;max-width:210px}.date-divider span{background:#e7f0f4;border-radius:100px;padding:7px 14px}.message{display:flex;gap:10px;align-items:flex-end;max-width:79%}.message.mine{align-self:flex-end;flex-direction:row-reverse}.message-avatar{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:#dff1f3;color:#126971;flex-shrink:0;font-size:11px;font-weight:850;margin-bottom:3px}.message-content{min-width:0;display:flex;flex-direction:column;align-items:flex-start;gap:5px}.message.mine .message-content{align-items:flex-end}.message-sender{font-size:11px;font-weight:800;color:#317887;padding:0 5px}.message-bubble{background:#fff;color:#183449;border:1px solid #e1ebf0;box-shadow:var(--shadow);border-radius:16px 16px 16px 5px;padding:12px 14px;min-width:110px;max-width:100%;overflow-wrap:anywhere;white-space:pre-wrap;font-size:14px;line-height:1.55}.message.mine .message-bubble{background:linear-gradient(125deg,#087c85,#00636d);border-color:transparent;color:white;border-radius:16px 16px 5px 16px}.message-time{font-size:10px;color:#9aaab6;text-align:right;margin-top:6px;line-height:1}.message.mine .message-time{color:#c4e6e8}.message-meta{display:flex;align-items:center;gap:7px;width:100%;justify-content:flex-end}.message-delete{border:0;background:transparent;color:#a6b3be;font-size:10px;padding:0;opacity:0}.message:hover .message-delete,.message-delete:focus-visible{opacity:1}.load-older{align-self:center;border:1px solid #dce8ec;background:#fff;color:#45818a;padding:7px 14px;border-radius:100px;font-weight:700;font-size:11px}.chat-composer{background:#fff;border-top:1px solid var(--border);padding:15px clamp(20px,3vw,58px)}.composer-box{background:#f7fafb;border:1px solid #dfe9ed;border-radius:14px;display:flex;gap:8px;align-items:center;padding:5px 5px 5px 15px;min-height:53px}.composer-box input{border:0;background:transparent;min-width:0;flex:1;outline:none;font-size:14px;color:#24455e}.composer-box input::placeholder{color:#9cacba}.send-button{border:0;background:linear-gradient(140deg,#087e86,#00616a);color:white;border-radius:11px;width:42px;height:42px;display:grid;place-items:center;flex-shrink:0}.send-button svg{height:20px;width:20px}
/* FILES */
.files-scroll{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:22px clamp(16px,2vw,30px) 28px}.upload-zone{border:1.5px dashed #afd9dc;background:linear-gradient(140deg,#f4fbfc,#ebf9f9);border-radius:15px;padding:21px 16px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:8px}.upload-zone.dragover{background:#dff5f6;border-color:#008c96}.upload-icon{height:43px;width:43px;background:#dcf1f3;color:#0a7a83;border-radius:12px;display:grid;place-items:center}.upload-icon svg{width:21px;height:21px}.upload-zone strong{font-size:16px;color:var(--navy)}.upload-zone p{color:#7a8fa2;font-size:11px;margin:0;line-height:1.45}.upload-zone small{color:#a1b3c0;font-size:10px}.upload-button{border:0;padding:10px 20px;border-radius:11px;background:linear-gradient(115deg,#056a74,#07848b);color:white;font-size:12px;font-weight:800;margin-top:5px}.upload-progress{color:#0b777d;font-size:11px;padding-top:6px}.files-list-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:25px 0 12px}.files-list-heading strong{font-size:15px;color:#153249}.files-list-heading .muted{font-size:11px;margin-left:4px}.ghost-icon{border:0;background:none;color:#879aab;padding:4px}.ghost-icon svg{width:17px;height:17px}.file-search-wrap{display:flex;gap:8px;align-items:center;border:1px solid var(--border);padding:9px 11px;background:#f7fafb;border-radius:10px;margin-bottom:13px}.file-search-wrap svg{width:17px;height:17px;color:#809aab}.file-search-wrap input{border:0;background:transparent;outline:0;font-size:12px;width:100%;color:var(--navy)}.file-list{display:flex;flex-direction:column;gap:9px}.file-item{background:#fff;border:1px solid #e4edf1;border-radius:12px;padding:12px 10px;display:flex;align-items:center;gap:11px;box-shadow:0 2px 7px #23475805;min-width:0}.file-type-icon{width:42px;height:42px;border-radius:10px;flex-shrink:0;display:grid;place-items:center;font-size:10px;font-weight:850;letter-spacing:.3px}.file-type-icon.pdf{background:#fff0ef;color:#c75045}.file-type-icon.excel{background:#e7f7ee;color:#158050}.file-type-icon.doc{background:#e7f0ff;color:#2566a8}.file-type-icon.img{background:#f2ecff;color:#7e56bd}.file-type-icon.other{background:#e8f5f7;color:#176f80}.file-info{flex:1;min-width:0}.file-name{white-space:nowrap;text-overflow:ellipsis;overflow:hidden;color:#16324a;font-weight:800;font-size:12px}.file-detail{color:#9aaaba;font-size:10px;margin-top:5px}.file-owner{color:#7d92a2;font-size:10px;margin-top:3px}.file-actions{display:flex;align-items:center;gap:4px;flex-shrink:0}.download-button{display:grid;place-items:center;width:35px;height:35px;border-radius:9px;background:#eaf4f7;color:#08727e;text-decoration:none}.download-button svg{width:18px;height:18px}.delete-file-button{border:0;background:transparent;color:#b88383;font-size:16px;width:23px;height:30px}.more-files{margin:15px auto;display:block}.placeholder{text-align:center;padding:30px 5px;line-height:1.6;font-size:12px}
.mobile-nav{display:none}
/* ADMIN */
.modal-backdrop{position:fixed;inset:0;z-index:20;background:#0c223d91;display:flex;align-items:center;justify-content:center;padding:15px}.admin-dialog{background:#fff;border-radius:18px;max-width:670px;width:100%;max-height:min(90dvh,920px);display:flex;flex-direction:column;overflow:hidden;box-shadow:0 25px 75px #0017264d}.modal-header{padding:22px 26px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.modal-header h2{font-size:22px;margin:0}.modal-body{overflow:auto;padding:0 26px 25px}.admin-section{padding-top:23px;margin-bottom:23px;border-bottom:1px solid var(--border);padding-bottom:22px}.admin-section:last-child{border:0;margin-bottom:0}.admin-section h3{font-size:16px;margin:0 0 6px}.admin-section p{font-size:12px;line-height:1.6}.admin-form{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin-top:19px}.admin-form label:nth-child(3){grid-column:1/-1}.admin-form .primary-button{grid-column:1/-1}.users-list{margin-top:12px}.user-row{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:12px 0;border-bottom:1px solid #eef2f3}.user-label{font-size:13px;font-weight:800}.user-sub{font-size:11px;color:#8498a5;margin-top:5px}.user-actions{display:flex;gap:6px;flex-shrink:0}.reset-box{display:flex;gap:7px;flex-basis:100%;width:100%;margin-top:8px}.reset-box input{flex:1;min-width:0;border:1px solid #dbe5eb;border-radius:8px;padding:9px 10px;font-size:12px}.tiny-button{font-size:11px;font-weight:700;color:#096875;border:1px solid #deecee;background:#f5fafb;border-radius:8px;padding:8px 10px}.tiny-button.danger{color:#a63a45;background:#fff4f4;border-color:#f3dddd}.danger-section{background:#fffafa;border:1px solid #f8dddd!important;border-radius:12px;padding:18px!important}.danger-actions{display:flex;gap:10px;flex-wrap:wrap}.danger-button{border:1px solid #eac6c8;border-radius:9px;color:#b43843;background:white;padding:10px 15px;font-size:12px;font-weight:800}.toast{position:fixed;z-index:50;right:22px;bottom:25px;background:#163e48;color:white;padding:13px 19px;border-radius:12px;box-shadow:0 10px 35px #1237;max-width:min(420px,90vw);font-size:13px;line-height:1.5}
/* INSTALL WIZARD */
.install-screen{min-height:100vh;background:#f3f8fa;display:flex;align-items:flex-start;justify-content:center;padding:36px 15px}.install-card{border:1px solid #e1eaef;background:#fff;border-radius:18px;box-shadow:var(--shadow);width:min(620px,100%);padding:30px}.install-logo{width:170px;height:auto;display:block;object-fit:contain;object-position:left;margin:0 0 15px}.install-card h1{font-size:25px;letter-spacing:-.4px;margin-bottom:9px}.install-card>p{line-height:1.6;font-size:13px}.install-form{display:grid;gap:15px;margin-top:24px}.install-form hr{border:0;border-top:1px solid #e6eff2;width:100%;margin:8px 0}.install-form .twocol{display:grid;grid-template-columns:2fr 1fr;gap:12px}.install-card .primary-button{margin:12px 0}
@media(max-width:850px){
 .login-shell{display:block;min-height:100dvh;height:auto;background:#fff}.login-art{display:none}.login-main{height:100dvh;min-height:510px;padding:20px;align-items:center}.login-card{padding:0 12px}.login-logo{width:195px;margin-bottom:45px}.login-card h1{font-size:31px}
 .app-body,.workspace{height:100dvh;min-height:0}.topbar{height:65px;min-height:65px;padding:0 15px}.brand{gap:9px}.brand img{width:123px;height:44px}.brand-separator{height:21px}.brand>span{font-size:9px;letter-spacing:1.8px}.user-pill{display:none}.topbar-actions{gap:5px}.icon-btn{width:37px;height:37px;border-radius:10px}
 .main-layout{display:flex;flex:1;min-height:0;position:relative}.chat-panel,.files-panel{width:100%;border-left:0}.files-panel{display:none}.workspace.mobile-view-files .chat-panel{display:none}.workspace.mobile-view-files .files-panel{display:flex}.mobile-nav{height:65px;min-height:65px;padding-bottom:env(safe-area-inset-bottom);box-sizing:content-box;display:grid;grid-template-columns:1fr 1fr;background:#fff;border-top:1px solid #e0eaf0;z-index:5}.nav-tab{border:0;background:#fff;color:#8193a4;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;position:relative;font-size:11px;font-weight:800}.nav-tab.active{color:#006c76}.nav-tab.active:after{position:absolute;content:"";height:3px;width:47px;border-radius:10px;background:#007985;bottom:4px}.nav-tab svg{width:24px;height:24px}
 .panel-heading{padding:15px 18px;min-height:84px}.panel-heading h1{font-size:21px}.files-heading h1{font-size:19px}.heading-label{font-size:9px;margin-bottom:5px}.subheading{font-size:11px}.mini-counter{padding:7px 9px}.chat-feed{padding:18px 13px;gap:15px}.message{max-width:92%;gap:7px}.message-avatar{width:30px;height:30px;font-size:10px}.message-bubble{font-size:13px;line-height:1.5;padding:11px 12px}.message-delete{opacity:.6}.chat-composer{padding:9px 11px 11px}.composer-box{min-height:47px;padding:4px 4px 4px 13px}.send-button{width:39px;height:39px}.composer-box input{font-size:13px}.files-scroll{padding:16px 14px 25px}.upload-zone{padding:19px 11px;gap:7px}.upload-zone strong{font-size:18px}.upload-zone p{font-size:12px}.upload-zone small{font-size:11px}.upload-button{padding:12px 22px}.file-item{padding:11px}.file-name{font-size:12px}.file-type-icon{width:44px;height:44px}.files-list-heading{margin-top:21px}
 .admin-dialog{max-height:95dvh}.modal-body{padding:0 17px 16px}.modal-header{padding:18px}.modal-header h2{font-size:20px}.admin-form{grid-template-columns:1fr}.admin-form label:nth-child(3),.admin-form .primary-button{grid-column:auto}.user-row{align-items:flex-start;flex-wrap:wrap}.user-actions{width:100%}.user-actions button{flex:1}
}
@media(max-width:375px){.brand>span{display:none}.brand-separator{display:none}.message{max-width:97%}.files-heading h1{font-size:17px}}