/* ============================================================
   AI Chat — UTU Dashboard visual system
   Source of truth: sistem_arsip_utu/assets/css/dashboard.css
   ============================================================ */
:root{
  --brand:#006DF0;
  --brand-dark:#0057c2;
  --brand-soft:#e8f1ff;
  --bg:#f4f6fb;
  --bg-secondary:#eef2f8;
  --bg-sidebar:#ffffff;
  --bg-composer:#ffffff;
  --bg-hover:#e8f1ff;
  --bg-active:#d8e9ff;
  --bg-user-msg:#e8f1ff;
  --text:#1f2733;
  --text-secondary:#5f6b7c;
  --text-muted:#7b8494;
  --border:#e6eaf2;
  --border-strong:#d6ddea;
  --accent:#006DF0;
  --accent-text:#ffffff;
  --danger:#dc3545;
  --code-bg:#f8faff;
  --code-header:#eef3fa;
  --shadow:0 1px 2px rgba(16,24,40,.05),0 8px 24px -12px rgba(16,24,40,.10);
  --shadow-lg:0 18px 40px -16px rgba(16,24,40,.22);
  --radius:14px;
  --radius-lg:16px;
  --sidebar-w:262px;
}

html[data-theme='dark']{
  --brand:#3b82f6;
  --brand-dark:#2563eb;
  --brand-soft:rgba(59,130,246,.16);
  --bg:#0e1420;
  --bg-secondary:#111827;
  --bg-sidebar:#171f31;
  --bg-composer:#171f31;
  --bg-hover:rgba(59,130,246,.12);
  --bg-active:rgba(59,130,246,.2);
  --bg-user-msg:rgba(59,130,246,.18);
  --text:#e7ecf5;
  --text-secondary:#b4bed0;
  --text-muted:#8d98ad;
  --border:#28324a;
  --border-strong:#35415d;
  --accent:#3b82f6;
  --accent-text:#ffffff;
  --danger:#f87171;
  --code-bg:#101827;
  --code-header:#182236;
  --shadow:0 1px 2px rgba(0,0,0,.45),0 8px 24px -12px rgba(0,0,0,.55);
  --shadow-lg:0 18px 40px -16px rgba(0,0,0,.7);
}

html,body{font-family:'Poppins',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;background:var(--bg);color:var(--text)}
body{font-size:14px;-webkit-font-smoothing:antialiased}
button,input,textarea{font-family:inherit}

/* App frame */
.app{background:var(--bg)}
.sidebar{background:var(--bg-sidebar);border-color:var(--border);box-shadow:var(--shadow);position:relative;z-index:90}
.sidebar-top{position:relative;padding:0 12px 8px}
.sidebar-brand{height:64px;min-height:64px;gap:10px;border-bottom:1px solid var(--border)}
.brand-mark,.login-logo{
  display:grid;place-items:center;flex-shrink:0;
  color:#fff;font-size:13px;font-weight:700;letter-spacing:.3px;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  box-shadow:0 6px 16px -7px rgba(0,109,240,.65)
}
.brand-mark{width:38px;height:38px;border-radius:50%}
.brand-name{display:flex;flex-direction:column;font-size:14px;line-height:1.15;color:var(--text)}
.brand-name small{font-size:10px;font-weight:400;color:var(--text-muted);letter-spacing:.2px;margin-top:3px}
.sidebar-brand #btn-collapse{order:3}
.new-chat-btn{
  position:absolute;top:76px;left:12px;right:12px;height:40px;justify-content:center;
  color:#fff;border:0;border-radius:10px;padding:9px 14px;font-weight:600;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  box-shadow:0 7px 16px -8px rgba(0,109,240,.72)
}
.new-chat-btn:hover{background:linear-gradient(135deg,#1179f4,var(--brand-dark));transform:translateY(-1px)}
.sidebar-search{margin:60px 0 6px}
.sidebar-search input{height:40px;background:var(--bg);border:1px solid var(--border);border-radius:10px;font-size:13px}
.sidebar-search input:hover{background:var(--bg)}
.sidebar-search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,109,240,.12)}
.nav-label{text-transform:uppercase;letter-spacing:.7px;font-size:10.5px;font-weight:600}
.convo-item{border-radius:10px;margin-bottom:2px;transition:all .2s ease}
.convo-item:hover{background:var(--brand-soft)}
.convo-item.active{background:linear-gradient(135deg,var(--brand),var(--brand-dark));box-shadow:0 8px 18px -9px rgba(0,109,240,.7)}
.convo-item.active .convo-title,.convo-item.active .convo-menu-btn{color:#fff}
.convo-title{font-size:13px;font-weight:500;padding:10px 10px}
.sidebar-bottom{background:var(--bg-sidebar);border-color:var(--border)}
.theme-toggle,.user-card{border-radius:10px}
.theme-toggle:hover,.user-card:hover{background:var(--brand-soft);color:var(--brand)}
.avatar{width:38px;height:38px;border-radius:10px;background:var(--brand-soft);color:var(--brand);font-weight:700}
.user-name{font-size:13px}.user-status{font-size:10.5px}

/* Top bar, same proportions as UTU */
.chat-header{
  min-height:64px;height:64px;flex-shrink:0;padding:0 20px;
  background:color-mix(in srgb,var(--bg-sidebar) 88%,transparent);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--border);z-index:50
}
.icon-btn{width:40px;height:40px;border-radius:10px;transition:all .2s ease}
.icon-btn:hover{background:var(--brand-soft);color:var(--brand)}
.model-btn{font-size:15px;font-weight:600;color:var(--text);border-radius:10px}
.model-btn:hover,.reasoning-btn:hover{background:var(--brand-soft);color:var(--brand)}
.reasoning-btn{color:var(--text-muted)}
.model-dropdown,.convo-context,.user-menu{border-radius:14px;border-color:var(--border);box-shadow:var(--shadow-lg)}
.model-dropdown .dd-item,.convo-context button,.user-menu button{border-radius:9px;font-size:13px}
.model-dropdown .dd-item:hover,.convo-context button:hover,.user-menu button:hover{background:var(--brand-soft);color:var(--brand)}
.model-dropdown .dd-item.selected{background:var(--brand-soft);color:var(--brand);font-weight:600}

/* Welcome: UTU gradient hero */
.welcome{align-items:flex-start;padding:42px 24px 24px}
.welcome-inner{
  max-width:900px;text-align:left;padding:30px 32px;border-radius:16px;color:#fff;
  position:relative;overflow:hidden;background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  box-shadow:var(--shadow-lg)
}
.welcome-inner::before,.welcome-inner::after{content:'';position:absolute;border-radius:50%;background:rgba(255,255,255,.08);pointer-events:none}
.welcome-inner::after{right:-60px;top:-90px;width:260px;height:260px}
.welcome-inner::before{right:140px;bottom:-110px;width:190px;height:190px}
.welcome-title{position:relative;z-index:1;font-size:24px;font-weight:600;margin:0 0 18px}
.suggestions{position:relative;z-index:1;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.suggestion{color:#fff;background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.25);border-radius:12px;font-size:13px;padding:12px 14px}
.suggestion:hover{background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.4);transform:translateY(-2px)}

/* Conversation layout: user on the right; AI on the left, no avatar */
.messages{background:var(--bg)}
.messages-inner{max-width:900px;padding:30px 24px 40px}
.msg{width:100%;margin-bottom:26px;gap:0;animation:messageIn .24s ease both}
@keyframes messageIn{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:none}}
.msg-avatar{display:none!important}
.msg-body{width:100%;display:flex;flex-direction:column;min-width:0}
.msg.user .msg-body{align-items:flex-end}
.msg.assistant .msg-body{align-items:flex-start}
.msg.user .msg-content{
  max-width:min(72%,680px);padding:10px 15px;border-radius:16px 16px 4px 16px;
  background:var(--bg-user-msg);border:1px solid color-mix(in srgb,var(--brand) 16%,var(--border));
  color:var(--text);box-shadow:0 3px 10px -8px rgba(0,109,240,.45)
}
.msg.assistant .msg-content{width:100%;max-width:100%;line-height:1.72;color:var(--text);font-size:14px}
.msg-actions{display:flex;align-items:center;gap:2px;margin-top:7px;color:var(--text-muted)}
.msg-actions button{
  width:30px;height:30px;display:grid;place-items:center;border:0;border-radius:8px;
  background:transparent;color:inherit;cursor:pointer;padding:0;transition:all .18s ease
}
.msg-actions button:hover{background:var(--brand-soft);color:var(--brand)}
.msg-actions button.active{color:var(--brand);background:var(--brand-soft)}
.msg-actions svg{width:15px;height:15px}
.msg-att-img{margin-left:auto;max-width:min(72%,360px);border-radius:14px}
.msg.user .attach-note{align-self:flex-end;background:var(--brand-soft);color:var(--brand)}
.md a{color:var(--brand)}
.md blockquote{border-left-color:var(--brand)}
.codeblock{border-radius:12px;box-shadow:var(--shadow)}

/* Composer = UTU card */
.composer-wrap{padding:10px 20px max(16px,calc(env(safe-area-inset-bottom, 0px) + var(--kb, 0px)));background:linear-gradient(transparent,var(--bg) 22%)}
.composer{
  border-radius:16px;border-color:var(--border);padding:9px 10px;background:var(--bg-composer);
  box-shadow:var(--shadow);transition:all .22s ease
}
.composer:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,109,240,.10),var(--shadow)}
.composer-plus{border:1px solid var(--border);background:var(--bg);color:var(--text-muted)}
.composer-plus:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand)}
.send-btn{border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-dark));box-shadow:0 6px 14px -7px rgba(0,109,240,.75)}
.send-btn.stop{background:var(--danger)}
.attach-chip{background:var(--bg-sidebar);border-color:var(--border);box-shadow:var(--shadow);border-radius:10px}
.status-line{color:var(--text-muted)}
.status-line .spinner{border-color:var(--border-strong);border-top-color:var(--brand)}
.status-line .tool-badge{background:var(--brand-soft);color:var(--brand);border-color:color-mix(in srgb,var(--brand) 22%,var(--border))}
.scroll-down{border-radius:10px;border-color:var(--border);box-shadow:var(--shadow)}

/* Login = UTU login card */
.login-overlay{
  background-color:var(--bg);
  background-image:radial-gradient(ellipse at 20% 20%,rgba(0,109,240,.08),transparent 45%),radial-gradient(ellipse at 80% 80%,rgba(0,109,240,.07),transparent 45%)
}
.login-card{max-width:420px;background:var(--bg-sidebar);border:1px solid var(--border);border-radius:20px;box-shadow:var(--shadow-lg);padding:32px 28px;position:relative;overflow:hidden}
.login-card::before{content:'';position:absolute;inset:0 0 auto;height:8px;background:linear-gradient(135deg,var(--brand),var(--brand-dark))}
.login-logo{width:64px;height:64px;border-radius:50%;margin:4px auto 14px;font-size:18px}
.login-card h1{font-size:19px;font-weight:600}.login-sub{font-size:12.5px}
.login-card input{border-color:var(--border);border-radius:10px;font-size:14px;padding:12px 13px;background:var(--bg-sidebar)}
.login-card input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,109,240,.12)}
.login-btn{border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-dark));box-shadow:0 6px 14px -6px rgba(0,109,240,.6)}

/* Toast */
.toast{background:var(--text);color:var(--bg-sidebar);border-radius:10px;box-shadow:var(--shadow-lg)}

/* File hasil agent (tombol unduh di dalam jawaban) */
.file-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.file-chip{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--border);background:var(--bg-sidebar);border-radius:10px;
  padding:7px 12px;font-size:12.5px;color:var(--text);text-decoration:none;
  box-shadow:var(--shadow);transition:all .18s ease;cursor:pointer
}
.file-chip:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand)}
.file-chip svg{width:15px;height:15px;flex-shrink:0}
.file-chip-name{font-weight:500;max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file-chip-size{color:var(--text-muted);font-size:11px;white-space:nowrap}

@media(max-width:991px){
  .sidebar{width:min(86vw,300px);min-width:min(86vw,300px)}
}
@media(max-width:768px){
  /* Pulihkan mode drawer: position:relative di atas menimpa position:fixed
     milik style.css (media query kalah urutan load), sehingga sidebar tetap
     memakan lebar layout walau sudah digeser keluar layar. */
  .sidebar{position:fixed;top:0;bottom:0;left:0}
  .chat-header{height:58px;min-height:58px;padding:0 12px}
  .welcome{padding:18px 12px}
  .welcome-inner{padding:22px 18px}
  .welcome-title{font-size:20px}
  .suggestions{grid-template-columns:1fr 1fr}
  .messages-inner{padding:22px 14px 30px}
  .msg.user .msg-content,.msg-att-img{max-width:88%}
  .composer-wrap{padding:8px 10px max(10px,calc(env(safe-area-inset-bottom, 0px) + var(--kb, 0px)))}
  .composer-hint{display:none}
}
@media(max-width:480px){
  .brand-name small{display:none}
  .suggestions{grid-template-columns:1fr}
  .msg.user .msg-content,.msg-att-img{max-width:94%}
  .messages-inner{padding:18px 11px 26px}
  .msg{margin-bottom:22px}
  .model-btn{max-width:52vw;overflow:hidden}
  .model-btn #model-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
}
@media(max-height:500px) and (orientation:landscape){
  .sidebar{overflow-y:auto}.welcome{padding-top:12px}.welcome-inner{padding:16px 18px}.suggestions{display:none}
}