/* NEXORA Chat Pro UI v4
   Premium conversational shell inspired by modern AI workspaces.
   Functional IDs and safety/approval behavior stay in chat.js + chat-pro.js. */
:root{
  --nx-bg:#0a0a0b;
  --nx-sidebar:#111113;
  --nx-surface:#161618;
  --nx-surface-2:#1d1d20;
  --nx-hover:#222225;
  --nx-line:#2b2b30;
  --nx-line-soft:#232327;
  --nx-text:#f5f4ef;
  --nx-muted:#9a9891;
  --nx-muted-2:#6f6d68;
  --nx-gold:#c8a75e;
  --nx-gold-soft:#e0c888;
  --nx-green:#63c38b;
  --nx-red:#d97878;
  --nx-shadow:0 24px 70px rgba(0,0,0,.42);
  --nx-content:820px;
  --nx-sidebar-w:272px;
}

html,body{background:var(--nx-bg);color:var(--nx-text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;overscroll-behavior:none}
body{font-size:14px}
button,input,textarea,select{font-family:inherit}
button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid rgba(200,167,94,.7);outline-offset:2px}
::selection{background:rgba(200,167,94,.26);color:var(--nx-text)}
*{scrollbar-width:thin;scrollbar-color:#3a393b transparent}
*::-webkit-scrollbar{width:8px;height:8px}
*::-webkit-scrollbar-thumb{background:#343438;border-radius:99px}
*::-webkit-scrollbar-track{background:transparent}

.app-shell{height:100dvh;min-height:100vh;grid-template-columns:var(--nx-sidebar-w) minmax(0,1fr);background:var(--nx-bg)}
.sidebar{position:relative;background:var(--nx-sidebar);border-right:1px solid var(--nx-line-soft);padding:10px 10px 12px;transition:width .2s ease,transform .2s ease;box-shadow:none}
.sidebar::after{content:"";position:absolute;inset:0 0 0 auto;width:1px;background:linear-gradient(180deg,transparent,rgba(200,167,94,.08),transparent);pointer-events:none}
.brand-row{min-height:46px;padding:4px 8px 8px;gap:10px}
.brand-row img{width:28px;height:28px;border-radius:8px}
.brand-row strong{font-size:12px;letter-spacing:.16em;font-weight:700}
.brand-row span{font-size:8px;letter-spacing:.16em;color:var(--nx-muted-2)}
.app-switcher{display:flex;gap:4px;padding:2px 4px 8px;margin:0}
.app-switcher a,.app-switcher span{border:0!important;background:transparent!important;padding:5px 7px!important;font-size:9px!important;color:var(--nx-muted-2)!important;text-align:left!important}
.app-switcher .active{color:var(--nx-gold-soft)!important}
.new-chat{height:40px;margin:4px 2px 8px;border:1px solid var(--nx-line)!important;background:#18181b!important;color:var(--nx-text);border-radius:11px!important;font-weight:560;padding:0 12px!important;transition:.15s ease}
.new-chat:hover{background:#202023!important;border-color:#37363a!important}
.search-wrap{height:36px;background:transparent;border:0;border-radius:9px;padding:0 9px;color:var(--nx-muted-2)}
.search-wrap:focus-within{background:#1a1a1d}
.search-wrap input{font-size:12px;color:var(--nx-text)}
.project-row{margin:3px 2px 5px;grid-template-columns:1fr 32px;gap:4px}
.project-row select,.project-row button{height:32px;padding:0 8px;background:transparent;border:0;color:var(--nx-muted);border-radius:8px}
.project-row select:hover,.project-row button:hover{background:#1c1c1f;color:var(--nx-text)}
.side-tabs{display:flex;gap:4px;margin:6px 5px 4px}
.side-tabs button{padding:5px 7px;font-size:9px;text-transform:none;letter-spacing:0;border-radius:7px}
.side-tabs button.active{background:#1c1c1f;color:#d8d7d1}
.sessions{padding:0 1px 8px}
.session{min-height:42px;padding:8px 9px;margin:1px 0;border:0!important;border-radius:9px;background:transparent}
.session:hover{background:#1b1b1e}
.session.active{background:#222225!important;border:0!important}
.session-main{padding-right:56px}
.session b{font-size:12px;font-weight:480;color:#deddd7}
.session small{font-size:8px;color:var(--nx-muted-2);letter-spacing:.02em;text-transform:none}
.session-actions{right:5px;top:8px}
.session-actions button{width:24px;height:24px}
.session-actions button:hover{background:#303034}
.sidebar-foot{border-top:1px solid var(--nx-line-soft);padding:8px 2px 0}
.sidebar-foot>button{height:34px;border:0;background:transparent;border-radius:8px;font-size:11px;color:var(--nx-muted);padding:0 8px}
.sidebar-foot>button:hover{background:#1b1b1e;color:var(--nx-text)}
.product-note{display:none}
.runtime-badge{padding:5px 8px 0;font-size:8px;color:var(--nx-muted-2)}

.nx-owner-card{display:flex;align-items:center;gap:9px;margin:7px 2px 2px;padding:9px 8px;border-radius:10px;cursor:default}
.nx-owner-card:hover{background:#1b1b1e}
.nx-owner-avatar{width:29px;height:29px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(145deg,#30291c,#171611);border:1px solid #51462f;color:var(--nx-gold-soft);font-size:11px;font-weight:700;flex:0 0 auto}
.nx-owner-copy{min-width:0;flex:1}
.nx-owner-copy b{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:10px;font-weight:600;color:#deddd8}
.nx-owner-copy span{display:block;margin-top:2px;font-size:8px;color:var(--nx-muted-2)}
.nx-pro-badge{font-size:8px!important;color:var(--nx-gold-soft)!important;border:1px solid #4e432e;border-radius:999px;padding:2px 5px}
.nx-sidebar-collapse{position:absolute;top:15px;right:-13px;z-index:8;width:26px;height:26px;border:1px solid var(--nx-line);border-radius:8px;background:#151517;color:#8c8a85;display:grid;place-items:center;cursor:pointer;opacity:0;transition:.15s ease}
.sidebar:hover .nx-sidebar-collapse{opacity:1}
.nx-sidebar-collapse:hover{color:var(--nx-text);border-color:#454449}

.main{grid-template-rows:auto auto minmax(0,1fr) auto;background:var(--nx-bg);min-width:0}
.topbar{height:56px;padding:0 16px;border-bottom:1px solid var(--nx-line-soft);background:rgba(10,10,11,.87);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);z-index:14}
.top-left{gap:8px}
.title-wrap{display:flex;align-items:center;gap:8px}
.title-line{gap:3px}
.top-left strong{font-size:13px;font-weight:560;max-width:390px;color:#ecebe6}
.top-left span{font-size:9px;color:var(--nx-muted-2);margin-top:2px}
.title-action{font-size:11px}
.controls{gap:5px;min-width:0}
.controls .persona-lock{height:32px;padding:0 10px;border:0;background:transparent;color:var(--nx-gold-soft);font-size:9px;border-radius:8px}
.controls .persona-lock::before{content:"✦";margin-right:5px;color:var(--nx-gold)}
.controls select{height:32px;padding:0 28px 0 9px;border:0!important;background-color:transparent!important;border-radius:8px!important;font-size:10px;color:#c9c8c3}
.controls select:hover{background-color:#1a1a1d!important}
.controls .ghost{height:32px;padding:0 10px;border:0!important;background:transparent!important;border-radius:8px!important;font-size:10px;color:#aaa8a2}
.controls .ghost:hover{background:#1d1d20!important;color:var(--nx-text)}
#workBtn,#appsBtn,#tasksBtn{color:#d9d7d1!important}
#workBtn::before{content:"◫";margin-right:5px;color:var(--nx-gold)}
#appsBtn::before{content:"◇";margin-right:5px;color:var(--nx-gold)}
#tasksBtn::before{content:"◷";margin-right:5px;color:var(--nx-gold)}
#sessionProject{max-width:140px}

.nx-more-wrap{position:relative;display:flex;align-items:center}
.nx-more-btn{width:32px;height:32px;border:0;border-radius:8px;background:transparent;color:#aaa8a2;cursor:pointer;font-size:18px;line-height:1}
.nx-more-btn:hover,.nx-more-btn[aria-expanded="true"]{background:#1d1d20;color:var(--nx-text)}
.nx-more-menu{position:absolute;right:0;top:38px;width:220px;padding:7px;background:#19191c;border:1px solid #343338;border-radius:12px;box-shadow:var(--nx-shadow);z-index:80;display:grid;gap:2px}
.nx-more-menu[hidden]{display:none}
.nx-menu-label{font-size:8px;color:var(--nx-muted-2);padding:6px 8px 4px;text-transform:uppercase;letter-spacing:.11em}
.nx-more-menu>.ghost,.nx-more-menu>button,.nx-more-menu>select{width:100%!important;min-height:34px!important;display:block!important;text-align:left!important;border:0!important;background:transparent!important;color:#d0cec8!important;border-radius:8px!important;padding:0 9px!important;font-size:11px!important}
.nx-more-menu>.ghost:hover,.nx-more-menu>button:hover,.nx-more-menu>select:hover{background:#242428!important;color:#fff!important}
.nx-menu-divider{height:1px;background:#2a292d;margin:5px 3px}

.live-status{height:30px;padding:0 max(18px,calc((100% - var(--nx-content))/2));border-bottom:1px solid var(--nx-line-soft);background:#0d0d0f;color:var(--nx-muted-2);font-size:9px}
.status-dot{width:6px;height:6px;background:var(--nx-gold);box-shadow:0 0 12px rgba(200,167,94,.45)}
.mobile-tools{display:none}

.messages{padding:28px max(18px,calc((100% - var(--nx-content))/2)) 46px;scroll-padding-bottom:160px}
.msg{grid-template-columns:28px minmax(0,1fr);gap:12px;margin:0 0 28px;align-items:flex-start}
.avatar{width:27px;height:27px;border-radius:50%;background:#171719;border:1px solid #373238;color:var(--nx-gold-soft);font-size:9px}
.msg.assistant .avatar{box-shadow:0 0 0 1px rgba(200,167,94,.04)}
.bubble{max-width:100%}
.bubble-head{margin:2px 0 7px;gap:6px}
.bubble-head b{font-size:11px;font-weight:600;color:#e9e7e1}
.badge{font-size:7px;padding:2px 5px;border-color:#36353a;color:#7f7d78}
.bubble-content{font-size:14px;line-height:1.72;color:#e6e5df}
.bubble-content p{margin:.35em 0 1em}
.bubble-content h1{font-size:1.35em}
.bubble-content h2{font-size:1.18em}
.bubble-content h3{font-size:1.05em}
.bubble-content a{color:#d9c47e;text-decoration-thickness:1px;text-underline-offset:2px}
.bubble-content code{background:#1b1b1e;border:1px solid #2c2b30;color:#e6ddc6}
.code-wrap pre{background:#111113;border-color:#2b2a2f;border-radius:12px}
.copy-code{background:#1a1a1d;border-color:#333238;color:#9d9a94}
.bubble-tools{margin-top:6px;opacity:.55;transition:.15s ease}
.msg:hover .bubble-tools{opacity:1}
.bubble-tools button{font-size:9px;color:#77746f}
.bubble-tools button:hover{color:var(--nx-gold-soft)}
.msg.user{grid-template-columns:minmax(0,1fr);justify-items:end;margin-top:4px}
.msg.user .avatar,.msg.user .bubble-head{display:none}
.msg.user .bubble{max-width:min(78%,690px);background:#232326;border:1px solid #2c2c30;border-radius:18px;padding:10px 14px}
.msg.user .bubble-content{font-size:13.5px;line-height:1.55;color:#f0efeb}
.msg.user .bubble-tools{justify-content:flex-end}

.empty-state{top:46%;width:min(760px,86%);transform:translate(-50%,-50%)}
.core-mark{width:42px;height:42px;margin-bottom:14px;border-radius:13px;border:1px solid #51462f;background:linear-gradient(145deg,#191713,#0f0f10);font-size:19px;box-shadow:0 12px 40px rgba(0,0,0,.25)}
.empty-state h1{font-family:inherit;font-size:27px;font-weight:580;letter-spacing:-.025em;margin:0 0 7px;color:#f1f0eb}
.empty-state p{font-size:11px;color:var(--nx-muted-2)}
.mode-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:25px auto 0;max-width:660px}
.mode-grid button{min-height:78px;border:1px solid #29292d;background:#131315;border-radius:14px;padding:12px 13px;transition:.15s ease}
.mode-grid button:hover{background:#1b1b1e;border-color:#3a393e;transform:translateY(-1px)}
.mode-grid b{font-size:11px;font-weight:580;color:#dfddd7}
.mode-grid span{font-size:9px;color:var(--nx-muted-2)}

.composer-wrap{position:relative;padding:10px max(16px,calc((100% - 860px)/2)) calc(12px + env(safe-area-inset-bottom));background:linear-gradient(180deg,rgba(10,10,11,0),rgba(10,10,11,.93) 22%,var(--nx-bg) 58%);z-index:12}
.composer{min-height:58px;align-items:flex-end;gap:4px;background:#1b1b1e;border:1px solid #343338;border-radius:22px;padding:8px 9px;box-shadow:0 12px 34px rgba(0,0,0,.27);transition:border-color .15s ease,box-shadow .15s ease}
.composer:focus-within{border-color:#4b473d;box-shadow:0 16px 42px rgba(0,0,0,.31),0 0 0 1px rgba(200,167,94,.04)}
.composer textarea{min-height:40px;max-height:220px;padding:9px 8px 8px;font-size:14px;line-height:1.48;color:#f3f2ed}
.composer textarea::placeholder{color:#7d7a75}
.icon,.send{width:38px;height:38px;border-radius:12px;color:#96938d}
.icon:hover{background:#26262a;color:#ecebe6}
.send{background:#e7e4dc;color:#111113;font-size:16px;box-shadow:none}
.send:hover{background:#fff}
.send.stop{background:#343337;color:#fff}
.composer-meta{justify-content:center;gap:16px;padding:7px 8px 0;color:#5f5d58;font-size:8px}
.composer-meta #modeHint{color:#77746e}
.image-preview,.edit-banner,.file-preview{max-width:840px;border-color:#2d2c30;background:#18181b;border-radius:12px}
.file-chip{background:#18181b;border-color:#2d2c30}

.workspace-drawer,.ops-drawer,.branch-drawer,.pro-panel{background:#131315!important;border-left:1px solid #2e2d31!important;box-shadow:-28px 0 70px rgba(0,0,0,.45)!important}
.drawer-head{height:56px;border-color:#2a292d;padding:0 14px}
.drawer-head strong{font-size:11px;letter-spacing:.08em}
.drawer-tabs{border-color:#2a292d}
.drawer-tabs button.active{background:#202023;border-color:#333238}
.workspace-item,.mission-card,.ops-summary,.computer-section,.mind-card,.pro-item{background:#18181b!important;border-color:#2c2b30!important}
.pro-panel{width:min(500px,96vw)!important}
.pro-search,.pro-select,.pro-input{background:#18181b!important;border-color:#323136!important;border-radius:10px!important}
.pro-actions button,.pro-primary,.tool-chip{background:#1a1813!important;border-color:#4c4029!important;color:#dcc788!important}
.tool-chip:hover,.pro-actions button:hover,.pro-primary:hover{background:#242017!important}
.command-palette{background:rgba(0,0,0,.62);backdrop-filter:blur(8px)}
.command-box{background:#18181b;border-color:#343338;border-radius:16px;box-shadow:var(--nx-shadow)}
.command-box input{background:#101012;border-color:#2f2e33}
.toast{right:18px;bottom:18px;background:#202023;border-color:#38373c;border-radius:12px;color:#f0efeb}

body.sidebar-collapsed .app-shell{grid-template-columns:68px minmax(0,1fr)}
body.sidebar-collapsed .sidebar{padding-left:8px;padding-right:8px}
body.sidebar-collapsed .brand-row>div,body.sidebar-collapsed .app-switcher,body.sidebar-collapsed .new-chat,body.sidebar-collapsed .search-wrap,body.sidebar-collapsed .project-row,body.sidebar-collapsed .side-tabs,body.sidebar-collapsed .sessions,body.sidebar-collapsed .sidebar-foot>button,body.sidebar-collapsed .runtime-badge,body.sidebar-collapsed .nx-owner-copy{display:none!important}
body.sidebar-collapsed .brand-row{justify-content:center;padding-top:5px}
body.sidebar-collapsed .brand-row img{width:30px;height:30px}
body.sidebar-collapsed .sidebar-foot{margin-top:auto;border:0}
body.sidebar-collapsed .nx-owner-card{justify-content:center;padding:8px 0}
body.sidebar-collapsed .nx-sidebar-collapse{right:-13px;opacity:1;transform:rotate(180deg)}

@media(max-width:1080px){
  .controls #workBtn,.controls #appsBtn,.controls #tasksBtn{padding:0 7px;font-size:9px}
  #sessionProject{display:none}
  .top-left strong{max-width:280px}
}

@media(max-width:760px){
  .app-shell{grid-template-columns:1fr}
  .sidebar{width:min(88vw,320px);padding:10px;box-shadow:20px 0 60px rgba(0,0,0,.48)}
  .sidebar::before{content:"";position:fixed;inset:0;background:rgba(0,0,0,.45);opacity:0;pointer-events:none;transition:.2s;z-index:-1}
  body.menu-open .sidebar::before{opacity:1}
  .nx-sidebar-collapse{display:none}
  .topbar{height:52px;padding:0 8px 0 7px}
  .top-left strong{max-width:170px;font-size:12px}
  .top-left span{display:none}
  .title-action{display:none}
  .controls{gap:1px}
  .controls .persona-lock{display:none}
  .controls #workBtn,.controls #appsBtn,.controls #tasksBtn{display:none!important}
  .controls select{max-width:92px;height:30px;font-size:9px;padding-left:7px}
  .nx-more-btn{width:30px;height:30px}
  .nx-more-menu{position:fixed;left:10px;right:10px;top:auto;bottom:calc(10px + env(safe-area-inset-bottom));width:auto;max-height:72vh;overflow:auto;border-radius:15px;padding:8px;box-shadow:0 -20px 70px rgba(0,0,0,.52)}
  .mobile-tools{display:flex;height:42px;overflow-x:auto;gap:5px;padding:5px 8px;border-bottom:1px solid var(--nx-line-soft);background:#0d0d0f;scrollbar-width:none}
  .mobile-tools::-webkit-scrollbar{display:none}
  .mobile-tools button{flex:0 0 auto;height:30px;border:0;background:#171719;color:#aaa8a2;border-radius:9px;padding:0 10px;font-size:9px}
  .mobile-tools button:active{background:#242428;color:var(--nx-gold-soft)}
  .messages{padding:19px 12px 32px}
  .msg{grid-template-columns:24px minmax(0,1fr);gap:8px;margin-bottom:24px}
  .avatar{width:24px;height:24px}
  .msg.user .bubble{max-width:88%;padding:9px 12px;border-radius:16px}
  .bubble-content{font-size:13.5px}
  .empty-state{top:43%;width:90%}
  .empty-state h1{font-size:24px}
  .mode-grid{grid-template-columns:1fr;margin-top:18px;gap:6px}
  .mode-grid button{min-height:58px;padding:10px 12px}
  .mode-grid button:nth-child(n+3){display:none}
  .composer-wrap{padding:8px 8px calc(9px + env(safe-area-inset-bottom));background:linear-gradient(180deg,rgba(10,10,11,0),var(--nx-bg) 28%)}
  .composer{min-height:54px;border-radius:20px;padding:7px}
  .composer textarea{min-height:38px;font-size:14px;padding:8px 5px}
  .icon,.send{width:36px;height:36px}
  .composer-meta{padding-top:5px;font-size:7px}
  .composer-meta span:nth-child(n+2){display:none}
  .workspace-drawer,.ops-drawer,.branch-drawer,.pro-panel{width:100vw!important}
}

@media(max-width:420px){
  #mode{max-width:78px}
  .top-left strong{max-width:145px}
  .mobile-tools{padding-left:6px;padding-right:6px}
  .mobile-tools button{padding:0 8px}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}

/* Natural bidirectional text for Arabic/English conversation content. */
.bubble-content,.composer textarea{unicode-bidi:plaintext;text-align:start}

/* Hidden overlays must remain hidden until explicitly opened. */
.command-palette[hidden]{display:none!important}

/* Secure in-chat owner gate: never leave unauthenticated mobile users on a blank screen. */
.chat-auth{position:fixed;inset:0;z-index:200;background:radial-gradient(circle at 50% 12%,rgba(200,167,94,.08),transparent 26%),#0a0a0b;display:grid;place-items:center;padding:22px}
.chat-auth[hidden]{display:none!important}
.chat-auth-card{width:min(420px,92vw);border:1px solid #2d2b27;background:linear-gradient(180deg,#151517,#101012);border-radius:24px;padding:30px;box-shadow:0 28px 80px rgba(0,0,0,.48)}
.chat-auth-card img{width:150px;max-width:58%;height:auto;display:block;margin-bottom:24px}
.chat-auth-kicker{display:block;color:var(--nx-gold-soft);font-size:10px;font-weight:750;letter-spacing:.16em}
.chat-auth-card h1{margin:8px 0 6px;font-size:26px;font-weight:620;letter-spacing:-.02em}
.chat-auth-card p{margin:0 0 20px;color:var(--nx-muted);font-size:12px;line-height:1.55}
.chat-auth-card form{display:grid;gap:11px;margin-top:18px}
.chat-auth-card form[hidden]{display:none!important}
.chat-auth-card label{display:grid;gap:7px;color:#d8d6d0;font-size:11px}
.chat-auth-card input{width:100%;height:48px;border:1px solid #37353a;border-radius:13px;background:#0d0d0f;color:#f5f4ef;padding:0 14px;outline:none}
.chat-auth-card input:focus{border-color:#6a5a39;box-shadow:0 0 0 3px rgba(200,167,94,.08)}
.chat-auth-card button{height:48px;border:1px solid #5a4c31;border-radius:13px;background:linear-gradient(180deg,#d8bd78,#b38c42);color:#17130a;font-weight:750;cursor:pointer}
.chat-auth-card button:disabled{opacity:.55;cursor:wait}
.chat-auth-card small{display:block;margin-top:16px;color:var(--nx-muted-2);font-size:9px}
@media(max-width:760px){.chat-auth{padding:16px}.chat-auth-card{padding:24px 20px;border-radius:20px}.chat-auth-card h1{font-size:23px}}