/* =========================================================
   Overter AI Platform — enterprise app shell
   Dark premium default (Copilot/ChatGPT inspired), light mode
   available. Brand palette shared with hygiencloudit.com.
   ========================================================= */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@500;600;700;800&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --dark:#1E3A8A;
  --primary:#2563EB;
  --primary2:#3B82F6;
  --accent:#38BDF8;
  --accent2:#22D3EE;

  /* dark app theme */
  --app-bg:#0B1120;
  --panel:#11182B;
  --panel-2:#161F36;
  --panel-3:#1C2740;
  --border:rgba(148,163,184,.14);
  --border-strong:rgba(148,163,184,.24);
  --text:#EAF0FB;
  --text-mid:#AEB9CF;
  --text-dim:#7C88A3;
  --bubble-user: linear-gradient(135deg,var(--primary),var(--dark));
  --bubble-ai: rgba(255,255,255,.04);
  --shadow: 0 20px 50px rgba(3,7,18,.45);
  --radius: 18px;
}
[data-theme="light"]{
  --app-bg:#F3F6FC;
  --panel:#FFFFFF;
  --panel-2:#F7F9FE;
  --panel-3:#EEF2FB;
  --border:#E6EAF4;
  --border-strong:#D7DEF0;
  --text:#111827;
  --text-mid:#4B5568;
  --text-dim:#8590A6;
  --bubble-ai:#F1F4FA;
  --shadow: 0 20px 45px rgba(30,58,138,.10);
}

*{box-sizing:border-box;margin:0;padding:0;}
html,body{height:100%;}
body.ov-app{
  font-family:'Inter',sans-serif;
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(56,189,248,.10), transparent 60%),
    radial-gradient(900px 500px at -5% 110%, rgba(37,99,235,.14), transparent 60%),
    var(--app-bg);
  color:var(--text);
  overflow:hidden;
  transition:background .3s ease,color .3s ease;
}
h1,h2,h3,h4{font-family:'Poppins',sans-serif;}
button{font-family:inherit;}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:8px;}
::-webkit-scrollbar-track{background:transparent;}
a{color:inherit;}

.ov-app-shell{display:grid;grid-template-columns:284px 1fr;height:100vh;}

/* ---------------- Sidebar ---------------- */
.ov-sidebar{
  background:var(--panel);
  border-right:1px solid var(--border);
  display:flex;flex-direction:column;
  padding:18px 14px;gap:14px;overflow:hidden;
}
.ov-brand{display:flex;align-items:center;gap:10px;padding:4px 6px 10px;}
.ov-brand img{width:34px;height:34px;border-radius:9px;}
.ov-brand .name{font-family:'Poppins',sans-serif;font-weight:700;font-size:16px;}
.ov-brand .name span{background:linear-gradient(135deg,var(--accent),var(--primary2));-webkit-background-clip:text;background-clip:text;color:transparent;}
.ov-brand .tag{font-size:11px;color:var(--text-dim);font-weight:500;}

.ov-newchat{
  display:flex;align-items:center;justify-content:center;gap:8px;
  background:linear-gradient(135deg,var(--primary),var(--dark));color:#fff;
  border:none;border-radius:14px;padding:12px 14px;font-weight:600;font-size:14px;cursor:pointer;
  box-shadow:0 10px 24px rgba(37,99,235,.35);transition:transform .2s, box-shadow .2s;
}
.ov-newchat:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(37,99,235,.45);}
.ov-newchat:active{transform:translateY(0) scale(.98);}

.ov-search{position:relative;}
.ov-search input{
  width:100%;background:var(--panel-2);border:1px solid var(--border);color:var(--text);
  border-radius:12px;padding:10px 12px 10px 34px;font-size:13px;outline:none;transition:border .2s;
}
.ov-search input:focus{border-color:var(--primary2);}
.ov-search svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--text-dim);}

.ov-scroll{overflow-y:auto;flex:1;display:flex;flex-direction:column;gap:16px;padding-right:2px;}
.ov-label{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);font-weight:700;padding:2px 6px 4px;}

.ov-history{display:flex;flex-direction:column;gap:2px;}
.ov-history-item{
  display:flex;align-items:center;gap:8px;padding:9px 10px;border-radius:11px;cursor:pointer;
  font-size:13.5px;color:var(--text-mid);transition:background .15s,color .15s;white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis;
}
.ov-history-item svg{width:14px;height:14px;flex:none;opacity:.7;}
.ov-history-item:hover{background:var(--panel-2);color:var(--text);}
.ov-history-item.active{background:var(--panel-3);color:var(--text);font-weight:600;}
.ov-history-item .del{margin-left:auto;opacity:0;width:13px;height:13px;flex:none;}
.ov-history-item:hover .del{opacity:.6;}
.ov-history-item .del:hover{opacity:1;color:#F87171;}

.ov-tools-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;}
.ov-tool-btn{
  display:flex;flex-direction:column;align-items:flex-start;gap:6px;
  background:var(--panel-2);border:1px solid var(--border);border-radius:13px;padding:10px 10px;
  cursor:pointer;text-align:left;transition:all .18s;
}
.ov-tool-btn:hover{border-color:var(--primary2);transform:translateY(-2px);box-shadow:0 8px 18px rgba(37,99,235,.15);}
.ov-tool-btn.active{background:linear-gradient(135deg,rgba(37,99,235,.18),rgba(56,189,248,.10));border-color:var(--accent2);}
.ov-tool-btn .ic{width:26px;height:26px;border-radius:8px;display:flex;align-items:center;justify-content:center;background:var(--panel-3);color:var(--accent2);}
.ov-tool-btn .ic svg{width:15px;height:15px;}
.ov-tool-btn .lbl{font-size:11.5px;font-weight:600;color:var(--text-mid);line-height:1.2;}
.ov-tool-btn.active .lbl{color:var(--text);}

.ov-sidebar-foot{border-top:1px solid var(--border);padding-top:12px;display:flex;flex-direction:column;gap:8px;}
.ov-row{display:flex;gap:8px;}
.ov-pill-btn{
  flex:1;display:flex;align-items:center;justify-content:center;gap:6px;background:var(--panel-2);
  border:1px solid var(--border);color:var(--text-mid);border-radius:11px;padding:9px;font-size:12px;
  font-weight:600;cursor:pointer;transition:all .15s;
}
.ov-pill-btn:hover{color:var(--text);border-color:var(--primary2);}
.ov-pill-btn svg{width:14px;height:14px;}
.ov-lang-select{
  flex:1;background:var(--panel-2);border:1px solid var(--border);color:var(--text-mid);
  border-radius:11px;padding:9px 8px;font-size:12px;font-weight:600;cursor:pointer;outline:none;
}

.ov-profile{
  display:flex;align-items:center;gap:10px;padding:9px;border-radius:13px;cursor:pointer;
  background:var(--panel-2);border:1px solid var(--border);position:relative;transition:border .15s;
}
.ov-profile:hover{border-color:var(--primary2);}
.ov-profile .av{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--accent),var(--primary));
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;color:#fff;flex:none;}
.ov-profile .who{flex:1;min-width:0;}
.ov-profile .who .n{font-size:13px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.ov-profile .who .p{font-size:11px;color:var(--accent2);font-weight:600;}
.ov-profile .chev{width:14px;height:14px;color:var(--text-dim);}

.ov-profile-menu{
  position:absolute;bottom:calc(100% + 8px);left:0;right:0;background:var(--panel-3);
  border:1px solid var(--border-strong);border-radius:14px;box-shadow:var(--shadow);padding:8px;
  display:none;flex-direction:column;gap:2px;z-index:60;
}
.ov-profile-menu.open{display:flex;}
.ov-profile-menu a, .ov-profile-menu button{
  display:flex;align-items:center;gap:9px;padding:9px 10px;border-radius:9px;font-size:13px;
  color:var(--text-mid);background:none;border:none;text-align:left;cursor:pointer;width:100%;
}
.ov-profile-menu a:hover, .ov-profile-menu button:hover{background:var(--panel-2);color:var(--text);}
.ov-profile-menu svg{width:14px;height:14px;}
.ov-profile-menu hr{border:none;border-top:1px solid var(--border);margin:4px 0;}

/* ---------------- Main ---------------- */
.ov-main{display:flex;flex-direction:column;min-width:0;position:relative;}
.ov-topbar{
  display:flex;align-items:center;gap:12px;padding:14px 22px;border-bottom:1px solid var(--border);
  background:rgba(17,24,43,.4);backdrop-filter:blur(14px);
}
[data-theme="light"] .ov-topbar{background:rgba(255,255,255,.6);}
.ov-menu-toggle{display:none;background:var(--panel-2);border:1px solid var(--border);border-radius:10px;
  width:36px;height:36px;align-items:center;justify-content:center;cursor:pointer;color:var(--text);}
.ov-mode-title{display:flex;align-items:center;gap:10px;}
.ov-mode-title .ic{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,var(--primary),var(--accent2));
  display:flex;align-items:center;justify-content:center;color:#fff;}
.ov-mode-title .ic svg{width:18px;height:18px;}
.ov-mode-title h1{font-size:16px;font-weight:700;}
.ov-mode-title .sub{font-size:11.5px;color:var(--text-dim);display:flex;align-items:center;gap:5px;}
.ov-mode-title .sub .dot{width:6px;height:6px;border-radius:50%;background:#22C55E;box-shadow:0 0 0 3px rgba(34,197,94,.18);}

.ov-topbar-actions{margin-left:auto;display:flex;align-items:center;gap:8px;}
.ov-icon-btn{
  width:38px;height:38px;border-radius:11px;background:var(--panel-2);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-mid);transition:all .15s;
}
.ov-icon-btn:hover{color:var(--text);border-color:var(--primary2);}
.ov-icon-btn svg{width:17px;height:17px;}
.ov-icon-btn.active{color:var(--accent2);border-color:var(--accent2);background:rgba(56,189,248,.1);}

/* ---------------- Chat stream ---------------- */
.ov-body{flex:1;display:flex;min-height:0;}
.ov-chat-col{flex:1;display:flex;flex-direction:column;min-width:0;}
.ov-stream{flex:1;overflow-y:auto;padding:26px 0 10px;}
.ov-stream-inner{max-width:840px;margin:0 auto;padding:0 26px;display:flex;flex-direction:column;gap:22px;}

.ov-welcome{text-align:center;padding:40px 10px 20px;animation:ovFadeUp .5s ease;}
.ov-welcome .logo{width:58px;height:58px;border-radius:16px;margin:0 auto 16px;
  background:linear-gradient(135deg,var(--primary),var(--accent2));display:flex;align-items:center;justify-content:center;
  box-shadow:0 14px 30px rgba(37,99,235,.4);}
.ov-welcome .logo svg{width:30px;height:30px;color:#fff;}
.ov-welcome h2{font-size:26px;margin-bottom:8px;}
.ov-welcome h2 span{background:linear-gradient(135deg,var(--accent2),var(--primary2));-webkit-background-clip:text;background-clip:text;color:transparent;}
.ov-welcome p{color:var(--text-dim);font-size:14px;max-width:460px;margin:0 auto;}
.ov-suggest-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;max-width:700px;margin:26px auto 0;}
.ov-suggest{
  background:var(--panel-2);border:1px solid var(--border);border-radius:14px;padding:13px 14px;text-align:left;
  cursor:pointer;transition:all .18s;font-size:13px;color:var(--text-mid);
}
.ov-suggest b{display:block;color:var(--text);font-size:13.5px;margin-bottom:2px;}
.ov-suggest:hover{border-color:var(--accent2);transform:translateY(-2px);box-shadow:0 10px 22px rgba(56,189,248,.14);}

.ov-msg{display:flex;gap:12px;animation:ovFadeUp .35s ease;max-width:100%;}
.ov-msg.user{flex-direction:row-reverse;}
.ov-msg .av{width:30px;height:30px;border-radius:9px;flex:none;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#fff;}
.ov-msg.user .av{background:linear-gradient(135deg,var(--accent),var(--primary));}
.ov-msg.ai .av{background:linear-gradient(135deg,var(--primary),var(--dark));}
.ov-msg-body{max-width:78%;display:flex;flex-direction:column;gap:6px;}
.ov-msg.user .ov-msg-body{align-items:flex-end;}
.ov-bubble{
  padding:12px 15px;border-radius:16px;font-size:14.5px;line-height:1.62;white-space:pre-wrap;word-wrap:break-word;
}
.ov-msg.user .ov-bubble{background:var(--bubble-user);color:#fff;border-bottom-right-radius:5px;}
.ov-msg.ai .ov-bubble{background:var(--bubble-ai);border:1px solid var(--border);border-bottom-left-radius:5px;}
.ov-bubble code{font-family:'JetBrains Mono',monospace;background:rgba(148,163,184,.16);padding:2px 6px;border-radius:5px;font-size:.9em;}
.ov-bubble pre{background:#0A0F1D;border:1px solid var(--border-strong);border-radius:12px;padding:0;margin:8px 0;overflow:hidden;}
[data-theme="light"] .ov-bubble pre{background:#111827;}
.ov-bubble pre .ov-code-head{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;background:rgba(255,255,255,.04);font-size:11px;color:#94A3B8;font-family:'JetBrains Mono',monospace;}
.ov-bubble pre .ov-code-head button{background:none;border:1px solid rgba(148,163,184,.3);color:#CBD5E1;font-size:10.5px;border-radius:6px;padding:3px 8px;cursor:pointer;}
.ov-bubble pre .ov-code-head button:hover{background:rgba(148,163,184,.15);}
.ov-bubble pre code{display:block;padding:12px 14px;color:#E2E8F0;font-size:12.8px;overflow-x:auto;background:none;}
.ov-msg-meta{display:flex;align-items:center;gap:10px;font-size:11px;color:var(--text-dim);}
.ov-msg-actions{display:flex;gap:4px;}
.ov-msg-actions button{background:none;border:none;color:var(--text-dim);cursor:pointer;width:22px;height:22px;border-radius:6px;display:flex;align-items:center;justify-content:center;}
.ov-msg-actions button:hover{color:var(--accent2);background:var(--panel-2);}
.ov-msg-actions svg{width:13px;height:13px;}

.ov-typing{display:flex;gap:4px;padding:4px 2px;}
.ov-typing span{width:6px;height:6px;border-radius:50%;background:var(--text-dim);animation:ovBlink 1.2s infinite ease-in-out;}
.ov-typing span:nth-child(2){animation-delay:.2s;}
.ov-typing span:nth-child(3){animation-delay:.4s;}
@keyframes ovBlink{0%,80%,100%{opacity:.25;transform:scale(.8);}40%{opacity:1;transform:scale(1);}}
@keyframes ovFadeUp{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}

.ov-attach-chip{display:inline-flex;align-items:center;gap:7px;background:var(--panel-2);border:1px solid var(--border);
  border-radius:10px;padding:7px 10px;font-size:12px;color:var(--text-mid);}
.ov-attach-chip svg{width:14px;height:14px;color:var(--accent2);}

/* ---------------- Composer ---------------- */
.ov-composer-wrap{padding:14px 26px 20px;background:linear-gradient(0deg,var(--app-bg) 60%,transparent);}
.ov-composer{
  max-width:840px;margin:0 auto;background:var(--panel);border:1px solid var(--border-strong);
  border-radius:20px;box-shadow:var(--shadow);padding:9px 9px 9px 14px;display:flex;flex-direction:column;gap:6px;
}
.ov-composer-row{display:flex;align-items:flex-end;gap:8px;}
.ov-composer textarea{
  flex:1;resize:none;border:none;outline:none;background:transparent;color:var(--text);font-size:14.5px;
  font-family:inherit;max-height:160px;padding:9px 0;line-height:1.5;
}
.ov-composer textarea::placeholder{color:var(--text-dim);}
.ov-comp-btn{
  width:38px;height:38px;border-radius:12px;background:var(--panel-2);border:1px solid var(--border);
  color:var(--text-mid);display:flex;align-items:center;justify-content:center;cursor:pointer;flex:none;transition:all .15s;
}
.ov-comp-btn:hover{color:var(--text);border-color:var(--primary2);}
.ov-comp-btn.mic.listening{color:#fff;background:#EF4444;border-color:#EF4444;animation:ovPulse 1.4s infinite;}
@keyframes ovPulse{0%{box-shadow:0 0 0 0 rgba(239,68,68,.5);}70%{box-shadow:0 0 0 10px rgba(239,68,68,0);}100%{box-shadow:0 0 0 0 rgba(239,68,68,0);}}
.ov-send{background:linear-gradient(135deg,var(--primary),var(--dark));color:#fff;border:none;}
.ov-send:hover{box-shadow:0 8px 20px rgba(37,99,235,.4);}
.ov-send:disabled{opacity:.4;cursor:not-allowed;box-shadow:none;}
.ov-comp-btn svg{width:17px;height:17px;}
.ov-composer-hint{font-size:11px;color:var(--text-dim);padding:0 6px 2px;display:flex;justify-content:space-between;}
.ov-file-input{display:none;}

/* ---------------- Right contextual drawer ---------------- */
.ov-drawer{
  width:0;overflow:hidden;border-left:1px solid var(--border);background:var(--panel);
  transition:width .28s ease;display:flex;flex-direction:column;
}
.ov-drawer.open{width:400px;}
.ov-drawer-head{display:flex;align-items:center;gap:10px;padding:16px 18px;border-bottom:1px solid var(--border);}
.ov-drawer-head h3{font-size:15px;}
.ov-drawer-head button{margin-left:auto;background:var(--panel-2);border:1px solid var(--border);border-radius:9px;width:30px;height:30px;color:var(--text-mid);cursor:pointer;}
.ov-drawer-body{flex:1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:14px;}

.ov-field label{display:block;font-size:12px;font-weight:700;color:var(--text-mid);margin-bottom:6px;}
.ov-field input,.ov-field select,.ov-field textarea{
  width:100%;background:var(--panel-2);border:1px solid var(--border);color:var(--text);border-radius:10px;
  padding:10px 11px;font-size:13.5px;outline:none;font-family:inherit;
}
.ov-field textarea{resize:vertical;min-height:70px;}
.ov-field input:focus,.ov-field select:focus,.ov-field textarea:focus{border-color:var(--primary2);}
.ov-btn-block{
  width:100%;padding:11px;border-radius:12px;border:none;background:linear-gradient(135deg,var(--primary),var(--dark));
  color:#fff;font-weight:700;font-size:13.5px;cursor:pointer;transition:transform .15s;
}
.ov-btn-block:hover{transform:translateY(-2px);}
.ov-result-box{background:var(--panel-2);border:1px solid var(--border);border-radius:12px;padding:14px;font-size:13px;
  line-height:1.6;white-space:pre-wrap;max-height:280px;overflow-y:auto;}
.ov-stat-row{display:flex;justify-content:space-between;font-size:13px;padding:8px 0;border-bottom:1px dashed var(--border);}
.ov-stat-row b{color:var(--accent2);}
.ov-flash{background:var(--panel-2);border:1px solid var(--border);border-radius:14px;padding:22px;text-align:center;
  font-size:15px;cursor:pointer;min-height:120px;display:flex;align-items:center;justify-content:center;}
.ov-chart-canvas{width:100%;background:var(--panel-2);border-radius:12px;border:1px solid var(--border);}

/* ---------------- Mobile ---------------- */
.ov-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:40;}
.ov-overlay.show{display:block;}
@media (max-width:1000px){
  .ov-drawer.open{position:fixed;right:0;top:0;bottom:0;width:min(400px,88vw);z-index:55;box-shadow:-14px 0 40px rgba(0,0,0,.4);}
}
@media (max-width:860px){
  .ov-app-shell{grid-template-columns:1fr;}
  .ov-sidebar{position:fixed;left:0;top:0;bottom:0;width:270px;z-index:50;transform:translateX(-100%);transition:transform .28s ease;box-shadow:14px 0 40px rgba(0,0,0,.4);}
  .ov-sidebar.open{transform:translateX(0);}
  .ov-menu-toggle{display:flex;}
  .ov-msg-body{max-width:88%;}
  .ov-suggest-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .ov-topbar{padding:12px 14px;}
  .ov-composer-wrap{padding:10px 12px 14px;}
  .ov-stream-inner{padding:0 14px;}
  .ov-mode-title h1{font-size:14px;}
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001s !important;transition-duration:.001s !important;}
}