/* ============================================================
   RumahAI Chat — Premium Modern (ChatGPT-level)
   Design system UTU: #006DF0 • Poppins • radius 16px
   Update: header compact, dark contrast, avatar & bubble refine,
           minimal actions, compact input, no overflow
   ============================================================ */
:root{
  --keyboard-offset:0px;

  --brand:#006DF0;
  --brand-dark:#0057c2;
  --brand-soft:#e8f1ff;
  --bg:#f4f6fb;
  --card:#ffffff;
  --card-hover:#f8faff;
  --text:#1f2733;
  --text-soft:#334155;
  --muted:#7b8494;
  --border:#e6eaf2;
  --border-strong:#dbe1f0;
  --radius:16px;
  --radius-sm:10px;
  --radius-pill:999px;
  --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,.18);
  --primary:var(--brand);
  --primary-dark:var(--brand-dark);
  --primary-soft:var(--brand-soft);
  --primary-glow:rgba(0,109,240,.13);
  --sidebar:var(--card);
  --sidebar-border:var(--border);
}
[data-theme="dark"]{
  --bg:#060e1f;
  --card:#0f1e38;
  --card-hover:#14264a;
  --text:#eef2fb;
  --text-soft:#c8d4ec;
  --muted:#8da2c4;
  --border:#1a2d54;
  --border-strong:#223a68;
  --brand-soft:#0f2a5a;
  --sidebar:#0a1630;
  --sidebar-border:#1a2d54;
  --shadow:0 4px 24px rgba(0,0,0,.45);
  --shadow-lg:0 18px 44px -16px rgba(0,0,0,.6);
}
*{box-sizing:border-box;min-width:0}
html{scroll-behavior:smooth;height:100%}
html,body{overflow-x:hidden;overscroll-behavior:none}
body{min-height:100%;min-height:100vh;min-height:100dvh;min-height:100svh;height:100dvh;overflow:hidden}
body{
  margin:0;
  font-family:'Poppins',system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--text);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  line-height:1.55;font-size:15px;
  text-rendering:optimizeLegibility;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:2px}
::selection{background:var(--brand);color:#fff}
img,svg{max-width:100%}

/* ---------- App ---------- */
.app{display:flex;height:100%;height:100vh;height:100dvh;height:100svh;min-height:0;overflow:hidden;overflow:clip}

/* ---------- Sidebar ---------- */
.sidebar{
  width:280px;flex:0 0 280px;
  background:var(--sidebar);border-right:1px solid var(--sidebar-border);
  display:flex;flex-direction:column;
  position:sticky;top:0;height:100vh;height:100dvh;overflow:hidden;z-index:10;
  transition:transform .25s cubic-bezier(.32,.72,0,1);
}
.sidebar-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 12px 8px;flex-shrink:0;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit}
.brand-mark{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  box-shadow:0 4px 12px -4px rgba(0,109,240,.45);color:#fff;
}
.brand-name{font-weight:700;font-size:14px;letter-spacing:-.02em;line-height:1}
.brand-sub{font-weight:500;color:var(--muted);margin-left:2px;font-size:11px}
.brand-text{line-height:1;display:flex;align-items:baseline}
#btnCloseSidebar{display:none}

/* New chat */
.btn-new{
  margin:6px 12px 12px;width:calc(100% - 24px);
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:9px 14px;border-radius:10px;font-size:13px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:.22s;white-space:nowrap;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;
  box-shadow:0 6px 14px -6px rgba(0,109,240,.55);
}
.btn-new:hover{transform:translateY(-1px);box-shadow:0 10px 20px -8px rgba(0,109,240,.5)}
.btn-new:active{transform:none}
.btn-new i{font-size:14px}

/* Search */
.search-wrap{position:relative;margin:0 12px 10px;flex-shrink:0}
.search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:12px;pointer-events:none}
.search-input{
  width:100%;padding:8px 12px 8px 32px;
  border:1px solid var(--border);background:var(--card);color:var(--text);
  border-radius:10px;font-size:12.5px;outline:none;transition:.22s;-webkit-appearance:none;
}
.search-input::placeholder{color:var(--muted)}
.search-input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}

/* Conv list */
.conv-list{flex:1;overflow-y:auto;overflow-x:hidden;padding:4px 8px 8px;scrollbar-width:thin;scrollbar-color:var(--border) transparent}
.group-title{font-size:10px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:12px 8px 4px}
.conv-item{
  display:flex;align-items:center;gap:8px;
  padding:8px 9px;border-radius:10px;cursor:pointer;
  border:1px solid transparent;color:var(--text);transition:.2s;
  user-select:none;-webkit-user-select:none;
}
.conv-item:hover{background:var(--card-hover);border-color:var(--border)}
[data-theme="dark"] .conv-item:hover{background:var(--card-hover)}
.conv-item.active{background:var(--card);border-color:var(--brand);box-shadow:var(--shadow)}
.conv-item.active .conv-title{font-weight:600;color:var(--brand)}
.conv-title{flex:1;min-width:0;font-size:13px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.35}
.conv-meta{font-size:10.5px;color:var(--muted);white-space:nowrap;flex-shrink:0}
.conv-actions{opacity:0;display:flex;gap:4px;transition:.18s;flex-shrink:0}
.conv-item:hover .conv-actions,.conv-item.active .conv-actions{opacity:1}
.mini-btn{
  width:28px;height:28px;border-radius:8px;border:1px solid var(--border);
  background:var(--card);display:grid;place-items:center;font-size:11px;cursor:pointer;transition:.2s;color:var(--muted);
}
.mini-btn:hover{border-color:var(--brand);color:#fff;background:var(--brand)}
[data-theme="dark"] .mini-btn{background:var(--card);border-color:var(--border)}

/* Sidebar foot */
.sidebar-foot{border-top:1px solid var(--sidebar-border);padding:10px 12px;background:var(--sidebar);flex-shrink:0}
.foot-actions{display:flex;gap:6px;margin-bottom:8px}
.foot-btn{
  flex:1;display:inline-flex;align-items:center;justify-content:center;gap:5px;
  padding:7px 8px;border:1px solid var(--border);background:var(--card);
  border-radius:10px;font-size:11.5px;font-weight:500;cursor:pointer;transition:.2s;color:var(--text);
  white-space:nowrap;
}
.foot-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.user-card{
  display:flex;align-items:center;gap:9px;
  padding:8px 10px;border:1px solid var(--border);background:var(--card);border-radius:12px;
  box-shadow:var(--shadow);
}
.avatar{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;display:grid;place-items:center;font-weight:700;font-size:11px;flex-shrink:0}
.user-name{font-weight:600;font-size:12.5px;line-height:1.2}
.user-sub{font-size:10.5px;color:var(--muted);line-height:1.2}
.dot{width:7px;height:7px;border-radius:50%;background:#16a34a;flex-shrink:0}
.dot.online{margin-left:auto}

/* ---------- Main ---------- */
.main{flex:1;min-width:0;display:flex;flex-direction:column;min-height:0;height:100%;overflow:hidden;background:var(--bg)}

/* ---------- Topbar — compact premium, 1 BARIS ANTI-WRAP ---------- */
.topbar{
  position:sticky;top:0;z-index:5;
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:0 10px;height:50px;min-height:50px;
  flex-wrap:nowrap;white-space:nowrap;
  background:rgba(255,255,255,.94);backdrop-filter:saturate(1.15) blur(12px);-webkit-backdrop-filter:saturate(1.15) blur(12px);
  border-bottom:1px solid var(--border);
  box-shadow:0 1px 0 rgba(16,24,40,.04);
  flex-shrink:0;transition:background .2s, border-color .2s;
  overflow:hidden;
}
[data-theme="dark"] .topbar{background:rgba(17,29,51,.88);border-color:var(--border);backdrop-filter:saturate(1.2) blur(10px);-webkit-backdrop-filter:saturate(1.2) blur(10px)}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:6px;min-width:0;flex-wrap:nowrap;white-space:nowrap}
.topbar-left{flex:1;min-width:0;overflow:hidden}
.topbar-right{flex-shrink:0}
.icon-btn{
  width:34px;height:34px;border-radius:9px;
  border:1px solid var(--border);background:var(--card);display:grid;place-items:center;color:var(--muted);
  cursor:pointer;transition:.2s;flex-shrink:0;font-size:14px;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.icon-btn:active{transform:scale(.96)}
[data-theme="dark"] .icon-btn{background:var(--card);border-color:var(--border);color:var(--muted)}
#btnOpenSidebar{display:none}
.model-picker{display:flex;align-items:center;gap:6px;flex-wrap:nowrap;min-width:0;flex:1;overflow:hidden}
.model-label{font-size:10px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);white-space:nowrap;flex-shrink:0}
.model-select{
  border:1px solid var(--border);background:var(--card);color:var(--text);
  border-radius:9px;padding:6px 26px 6px 8px;font-size:12px;font-weight:500;
  min-width:0;flex:1;max-width:220px;outline:none;cursor:pointer;transition:.2s;
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%237b8494' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 8px center;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
[data-theme="dark"] .model-select{
  background-color:var(--card);color:var(--text);border-color:var(--border);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238ea0c2' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
}
.model-select:hover{border-color:var(--border-strong)}
.model-select:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.model-hint{font-size:10px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:120px}
.conn{
  display:inline-flex;align-items:center;gap:5px;
  padding:5px 9px;border:1px solid var(--border);background:var(--card);
  border-radius:99px;font-size:11px;font-weight:600;white-space:nowrap;transition:.2s;flex-shrink:0;
}
[data-theme="dark"] .conn{background:var(--card);border-color:var(--border);color:var(--text)}
.conn-dot{width:6px;height:6px;border-radius:50%;background:var(--muted);flex-shrink:0}
.conn.ok .conn-dot{background:#16a34a;box-shadow:0 0 0 3px rgba(22,163,74,.16)}
.conn.bad .conn-dot{background:#ef4444;box-shadow:0 0 0 3px rgba(239,68,68,.16)}
.conn-text{max-width:110px;overflow:hidden;text-overflow:ellipsis}

/* ---------- Chat area ---------- */
.chat-wrap{flex:1 1 auto;display:flex;flex-direction:column;min-height:0;overflow:hidden;position:relative}
.chat-scroll{flex:1 1 auto;min-height:0;overflow-y:auto;overflow-x:hidden;scroll-behavior:smooth;padding:18px 14px 16px;overscroll-behavior:contain;max-width:100%;scroll-padding-bottom:16px;-webkit-overflow-scrolling:touch;overscroll-behavior-y:contain}

/* Empty state — proporsional, tidak kosong berlebihan */
.empty{max-width:720px;margin:0 auto;padding:18px 8px 12px;width:100%;display:flex;flex-direction:column;align-items:center}
.empty-card{text-align:center;padding:12px 10px;max-width:560px;width:100%}
.empty-icon{
  width:56px;height:56px;margin:0 auto 12px;border-radius:16px;
  background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:24px;
  border:1px solid var(--border);
}
.empty-title{font-size:22px;font-weight:700;letter-spacing:-.02em;margin:0 0 6px;line-height:1.2;color:var(--text)}
.empty-sub{color:var(--muted);max-width:480px;margin:0 auto 16px;font-size:12.5px;line-height:1.6}
.suggest-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;max-width:520px;margin:0 auto 16px;width:100%}
.suggest{
  padding:11px 13px;border:1px solid var(--border);background:var(--card);
  border-radius:12px;text-align:left;font-size:12.5px;font-weight:500;
  cursor:pointer;transition:.22s;line-height:1.4;color:var(--text);box-shadow:var(--shadow);
}
.suggest:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--brand);background:var(--card-hover)}
.suggest:active{transform:none}
.center-input{max-width:640px;margin:0 auto;width:100%}

/* ---------- Composer — compact sejajar ---------- */
.composer{
  display:flex;align-items:flex-end;gap:6px;
  padding:6px 6px 6px 12px;
  background:var(--card);border:1px solid var(--border);
  border-radius:14px;box-shadow:var(--shadow);
  transition:border-color .2s, box-shadow .2s;width:100%;
}
.composer:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft), var(--shadow)}
.composer-center{border-radius:14px}
.composer-actions{display:flex;align-items:flex-end;gap:6px;flex-shrink:0;padding-bottom:2px}
.composer-input{
  flex:1;min-height:22px;max-height:160px;resize:none;align-self:center;overflow-y:auto;
  border:0;outline:0;background:transparent;color:var(--text);
  font-size:13.5px;line-height:1.55;padding:5px 0;font-family:inherit;
}
.composer-input::placeholder{color:var(--muted)}
.file-btn{flex:0 0 32px;align-self:flex-end;margin-bottom:1px}
.file-btn.icon-btn{width:32px;height:32px;border-radius:9px;font-size:14px}
.send-btn{
  width:32px;height:32px;border-radius:9px;border:0;
  align-self:flex-end;margin-bottom:1px;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  color:#fff;display:grid;place-items:center;
  cursor:pointer;transition:.2s;font-size:14px;flex-shrink:0;
  box-shadow:0 4px 10px -4px rgba(0,109,240,.5);
}
.send-btn:hover{transform:translateY(-1px);box-shadow:0 6px 14px -6px rgba(0,109,240,.5)}
.send-btn:active{transform:none}
.send-btn:disabled{opacity:.42;cursor:not-allowed;transform:none;box-shadow:none}
.stop-btn{
  width:32px;height:32px;border-radius:9px;
  border:1px solid var(--border);background:var(--card);cursor:pointer;display:grid;place-items:center;flex-shrink:0;transition:.2s;color:var(--muted);font-size:13px;
}
.stop-btn:hover{border-color:#ef4444;color:#ef4444;background:#fef2f2}
[data-theme="dark"] .stop-btn{background:var(--card);border-color:var(--border)}
[data-theme="dark"] .stop-btn:hover{background:rgba(239,68,68,.1)}
.composer-meta{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:6px 2px 0;font-size:10px;color:var(--muted);flex-wrap:wrap;
}
.file-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:55%;font-size:10px}
.meta-hint{white-space:nowrap;font-size:10px}
.composer-dock{
  position:relative;
  flex-shrink:0;
  background:var(--bg);
  border-top:1px solid var(--border);
  padding:8px 14px calc(10px + env(safe-area-inset-bottom) + var(--keyboard-offset, 0px));
  /* keyboard offset hanya untuk browser tanpa resizes-content; fallback 0 */
}
.composer-dock .composer{max-width:720px;margin:0 auto}
.composer-dock .composer-meta{max-width:720px;margin:0 auto}
.disclaimer{max-width:720px;margin:6px auto 0;text-align:center;font-size:10px;color:var(--muted);line-height:1.4;opacity:.9}

/* ---------- Messages — rebuilt symmetric, anti-overlap, consistent sizing ---------- */
.messages{max-width:720px;margin:0 auto;display:flex;flex-direction:column;gap:2px;padding:0 4px 10px;width:100%;box-sizing:border-box}
.msg{display:flex;align-items:flex-start;gap:12px;max-width:100%;width:100%;padding:10px 2px;animation:msgIn .2s ease both;overflow:visible;box-sizing:border-box}
.msg.user{flex-direction:row;justify-content:flex-end}
.msg.assistant{flex-direction:row;justify-content:flex-start}
@keyframes msgIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion: reduce){.msg{animation:none}}
.bubble-wrap{display:flex;flex-direction:column;min-width:0;gap:0;overflow:visible;box-sizing:border-box}
.bubble-wrap.user{align-items:flex-end;flex:1 1 auto;max-width:calc(100% - 38px);min-width:0}
.bubble-wrap.assistant{align-items:flex-start;flex:1 1 auto;max-width:calc(100% - 38px);min-width:0}
.msg-avatar{
  width:28px;min-width:28px;height:28px;min-height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:9px;font-weight:700;flex-shrink:0;margin-top:2px;
  border:1px solid var(--border);line-height:1;
  white-space:nowrap;overflow:hidden;text-align:center;
  letter-spacing:-0.1px;box-sizing:border-box;
}
.msg.user .msg-avatar{font-size:8.5px;letter-spacing:-0.2px;background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;border-color:transparent}
.msg.assistant .msg-avatar{background:var(--brand-soft);color:var(--brand);border-color:var(--border)}
/* Unified bubble base — ukuran & tipografi identik user & AI */
.bubble{
  max-width:100%;width:fit-content;min-width:0;box-sizing:border-box;
  padding:10px 14px;
  border-radius:16px;line-height:1.6;font-size:14px;
  overflow-wrap:anywhere;word-break:normal;
  overflow:visible;word-break:normal;
}
.msg.user .bubble{
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;
  border:1px solid transparent;box-shadow:0 3px 12px -4px rgba(0,109,240,.35);
  border-radius:16px;border-bottom-right-radius:6px;
  white-space:pre-wrap;
}
.msg.assistant .bubble{
  background:var(--card);color:var(--text);
  border:1px solid var(--border);box-shadow:var(--shadow);
  border-radius:16px;border-bottom-left-radius:6px;
  padding:10px 14px;
}
.msg.user .bubble > div{line-height:1.6}
.msg.user .bubble a{color:#fff;text-decoration:underline;text-underline-offset:2px}
.bubble p{margin:0 0 8px;line-height:1.6;position:relative}
.bubble p:last-child{margin-bottom:0}
/* per-paragraph copy button — muncul saat hover/focus */
.bubble p .para-copy{
  position:absolute;right:-2px;top:1px;
  width:26px;height:26px;border-radius:7px;
  border:1px solid transparent;background:transparent;color:var(--muted);
  display:grid;place-items:center;font-size:11px;cursor:pointer;opacity:0;transition:.18s;
}
.bubble p:hover .para-copy,.bubble p:focus-within .para-copy{opacity:1;border-color:var(--border);background:var(--card);box-shadow:var(--shadow)}
.bubble p .para-copy:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft)}
.bubble p .para-copy.copied{color:#16a34a;border-color:#16a34a;background:#e6f7ef}
[data-theme="dark"] .bubble p .para-copy{color:var(--muted)}
[data-theme="dark"] .bubble p:hover .para-copy{background:var(--card);border-color:var(--border)}
@media (max-width: 860px){
  .bubble p{padding-right:28px}
  .bubble p .para-copy{opacity:1;border-color:var(--border);background:var(--card)}
}
.bubble pre{
  margin:10px 0;background:#0f172a;color:#e8eef8;
  border-radius:10px;overflow:hidden;border:1px solid rgba(255,255,255,.07);max-width:100%;width:100%;
  box-shadow:0 1px 8px rgba(0,0,0,.12);display:block;
}
.bubble pre code{
  display:block;max-width:100%;padding:11px 13px;overflow-x:auto;overflow-y:hidden;
  font-family:"JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size:12.5px;line-height:1.6;white-space:pre;word-break:normal;overflow-wrap:normal;
  -webkit-overflow-scrolling:touch;
}
.code-head{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:6px 10px;background:rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.07);font-size:10.5px;letter-spacing:.02em;color:#94a3b8;
}
.copy-btn{border:1px solid rgba(255,255,255,.13);background:rgba(255,255,255,.06);color:#cbd5e1;border-radius:7px;padding:3px 7px;font-size:11px;cursor:pointer;transition:.18s}
.copy-btn:hover{background:rgba(255,255,255,.12);color:#fff}
.msg-actions{display:flex;align-items:center;gap:5px;flex-wrap:wrap}
.msg-actions .mini{
  padding:4px 9px;border:1px solid transparent;background:transparent;
  border-radius:99px;font-size:11px;font-weight:500;cursor:pointer;transition:.18s;color:var(--muted);
  line-height:1;display:inline-flex;align-items:center;gap:4px;white-space:nowrap;
}
.msg-actions .mini i{font-size:11px;opacity:.9}
.msg-actions .mini:hover{border-color:var(--border);color:var(--brand);background:var(--brand-soft)}
.msg-actions .mini:active{transform:scale(.97)}
/* User & AI — jarak vertikal sama, alignment ngikut bubble-wrap (bukan float) */
.bubble-wrap.user .msg-actions{align-self:flex-end;justify-content:flex-end;margin-top:6px}
.bubble-wrap.assistant .msg-actions{align-self:flex-start;justify-content:flex-start;margin-top:6px}
/* warna & ukuran identik — tidak beda user vs AI */
.bubble-wrap.user .msg-actions .mini,
.bubble-wrap.assistant .msg-actions .mini{color:var(--muted)}
.bubble-wrap.user .msg-actions .mini:hover,
.bubble-wrap.assistant .msg-actions .mini:hover{color:var(--brand);background:var(--brand-soft);border-color:var(--border)}
[data-theme="dark"] .msg-actions .mini:hover{background:var(--brand-soft);border-color:var(--border)}
.typing{display:flex;align-items:center;gap:7px;max-width:720px;margin:4px auto 0;padding:8px 12px;color:var(--muted);font-size:12.5px;width:100%;animation:typingIn .18s ease both}
@keyframes typingIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
.typing .dot{width:5px;height:5px;background:var(--muted);animation:blink 1.2s infinite;border-radius:50%}
.typing .dot:nth-child(2){animation-delay:.15s}.typing .dot:nth-child(3){animation-delay:.3s}
@keyframes blink{0%,80%,100%{opacity:.25}40%{opacity:1}}

/* Markdown — clean & konsisten */
.bubble h1{font-size:17px;font-weight:700;margin:14px 0 8px;line-height:1.32;letter-spacing:-.02em;color:var(--text)}
.bubble h2{font-size:16px;font-weight:700;margin:12px 0 6px;line-height:1.35;color:var(--text)}
.bubble h3{font-size:14px;font-weight:600;margin:10px 0 6px;line-height:1.4;color:var(--text)}
.bubble h1:first-child,.bubble h2:first-child,.bubble h3:first-child{margin-top:0}
.bubble ul,.bubble ol{margin:8px 0 10px 18px;padding:0}
.bubble li{margin:4px 0;font-size:14px;line-height:1.6}
.bubble li::marker{color:var(--muted)}
.bubble blockquote{
  margin:10px 0;padding:8px 12px;
  border-left:2px solid var(--brand);background:var(--brand-soft);
  border-radius:0 8px 8px 0;font-size:13.5px;line-height:1.55;color:var(--text);
}
.bubble table{width:100%;border-collapse:collapse;margin:10px 0;font-size:13px;border:1px solid var(--border);border-radius:10px;overflow:hidden;display:table;max-width:100%;table-layout:auto}
.bubble thead th{background:var(--brand-soft);font-weight:700;font-size:11px;letter-spacing:.03em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
.bubble th,.bubble td{border:1px solid var(--border);padding:7px 10px;text-align:left;vertical-align:top;white-space:nowrap}
.bubble tbody tr:last-child td{border-bottom:none}
.bubble code:not(pre code){background:var(--brand-soft);border:1px solid var(--border);padding:1px 5px;border-radius:6px;font-family:"JetBrains Mono", monospace;font-size:12.5px;word-break:break-word}
.bubble img{max-width:100%;height:auto;border-radius:8px;display:block;margin:8px 0}
.bubble a{color:var(--brand);text-decoration:underline;text-underline-offset:2px;word-break:break-all}
.msg.user .bubble code:not(pre code){background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.25);color:#fff}
/* Tabel bisa digeser horizontal — teks gak kepotong ke bawah */
.bubble .md-table-wrap{
  display:block;max-width:100%;overflow-x:auto;overflow-y:hidden;
  -webkit-overflow-scrolling:touch;
  overscroll-behavior-x:contain;
  margin:10px 0;border:1px solid var(--border);border-radius:10px;
  /* hint geser: bayangan tepi kanan */
  background:
    linear-gradient(to right, var(--card) 30%, transparent),
    linear-gradient(to left, var(--card) 30%, transparent) 100% 0,
    radial-gradient(farthest-side at 0 50%, rgba(0,0,0,.08), transparent),
    radial-gradient(farthest-side at 100% 50%, rgba(0,0,0,.08), transparent) 100% 0;
  background-repeat:no-repeat;
  background-size:40px 100%, 40px 100%, 14px 100%, 14px 100%;
  background-attachment:local, local, scroll, scroll;
  background-color:var(--card);
}
.bubble .md-table-wrap table{margin:0;border:none;border-radius:0;min-width:max-content;width:max-content;max-width:none}
.bubble .md-table-wrap::-webkit-scrollbar{height:6px}
.bubble .md-table-wrap::-webkit-scrollbar-thumb{background:var(--border);border-radius:999px}
.bubble .md-table-wrap::-webkit-scrollbar-thumb:hover{background:var(--muted)}
/* label hint "geser →" muncul kalau tabel overflow */
.bubble .md-table-wrap.has-scroll::after{
  content:'Geser →';
  position:sticky;right:0;bottom:0;
  display:block;text-align:right;
  font-size:10px;font-weight:600;letter-spacing:.04em;color:var(--muted);
  background:linear-gradient(to left, var(--card) 60%, transparent);
  padding:4px 10px 4px 24px;pointer-events:none;
}
[data-theme="dark"] .bubble .md-table-wrap{
  background-color:var(--card);
  background:
    linear-gradient(to right, var(--card) 30%, transparent),
    linear-gradient(to left, var(--card) 30%, transparent) 100% 0,
    radial-gradient(farthest-side at 0 50%, rgba(0,0,0,.35), transparent),
    radial-gradient(farthest-side at 100% 50%, rgba(0,0,0,.35), transparent) 100% 0;
  background-repeat:no-repeat;
  background-size:40px 100%, 40px 100%, 14px 100%, 14px 100%;
  background-attachment:local, local, scroll, scroll;
  background-color:var(--card);
}
[data-theme="dark"] .msg.assistant .bubble{background:#122040;border:1px solid rgba(255,255,255,.08);border-radius:16px;border-bottom-left-radius:6px;padding:10px 14px;box-shadow:0 4px 18px rgba(0,0,0,.35)}
[data-theme="dark"] .bubble pre{background:#0b1224;border-color:rgba(255,255,255,.06)}
[data-theme="dark"] .bubble blockquote{background:var(--brand-soft);border-left-color:var(--brand)}

/* ---------- Backdrop ---------- */
.backdrop{position:fixed;inset:0;background:rgba(16,24,40,.42);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:9;opacity:1;transition:opacity .22s}
.backdrop[hidden]{display:block !important;opacity:0;pointer-events:none}

/* ---------- Scrollbar ---------- */
*{scrollbar-width:thin;scrollbar-color:var(--border) transparent}
::-webkit-scrollbar{width:5px;height:5px}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:var(--muted)}

/* ============================================================
   RESPONSIVE — premium, no overflow
   ============================================================ */
@media (max-width: 1024px){
  .model-select{max-width:180px}
  .messages{max-width:680px}
}
@media (max-width: 860px){
  .sidebar{
    position:fixed;left:0;top:0;bottom:0;
    width:min(300px, 84vw);flex:0 0 auto;transform:translateX(-100%);
    box-shadow:var(--shadow-lg);height:100dvh;
  }
  .sidebar.open{transform:translateX(0)}
  #btnCloseSidebar{display:grid}
  #btnOpenSidebar{display:grid}
  .topbar{padding:0 8px;height:50px;min-height:50px;flex-wrap:nowrap;gap:6px}
  .model-label{font-size:9px}
  .model-select{max-width:150px;font-size:11.5px;padding:5px 22px 5px 7px}
  .model-hint{display:none}
  .conn{padding:4px 7px;font-size:10px}
  .conn-text{max-width:60px}
  .chat-scroll{padding:14px 10px 12px}
  .messages{max-width:100%;gap:0}
  .msg{padding:9px 2px;gap:10px}
  .msg.user{padding:7px 0}
  .bubble{font-size:14px;line-height:1.62}
  .msg.user .bubble{max-width:100%}
  .composer-dock{padding:8px 10px max(8px, env(safe-area-inset-bottom))}
  .suggest-grid{grid-template-columns:1fr;gap:7px}
  .empty{padding:14px 6px 10px}
  .empty-title{font-size:20px}
  .empty-sub{font-size:12px}
  .conv-actions{opacity:1}
  .bubble pre{margin:8px -1px}
  .bubble table{font-size:12.5px}
  .bubble th,.bubble td{padding:6px 8px}
}
@media (max-width: 640px){
  .empty-title{font-size:19px}
  .suggest{padding:10px 12px}
  .topbar{height:48px;min-height:48px;flex-wrap:nowrap}
  .chat-scroll{padding:12px 10px 14px}
  .composer{padding:6px 6px 6px 10px;border-radius:12px}
  .composer-input{font-size:14px}
  .messages{padding-bottom:6px}
}
@media (max-width: 480px){
  .topbar{height:48px;min-height:48px;padding:0 6px;gap:5px;flex-wrap:nowrap;overflow:hidden}
  .topbar-left{gap:5px;overflow:hidden}
  .topbar-right{gap:5px}
  .model-label{display:none}
  .model-select{max-width:120px;font-size:11px;padding:5px 20px 5px 7px}
  .icon-btn{width:30px;height:30px;font-size:12px}
  .msg{padding:8px 2px;gap:10px}
  .bubble{font-size:14px}
  .msg.user .bubble{max-width:100%;font-size:14px;padding:9px 13px}
  .msg.assistant .bubble{max-width:100%;font-size:14px;padding:9px 13px}
  .composer{gap:5px}
  .send-btn,.file-btn.icon-btn,.stop-btn{width:32px;height:32px}
  .empty-icon{width:50px;height:50px;font-size:22px;border-radius:14px}
  .msg-avatar{width:22px;height:22px;font-size:8.5px}
  .msg.user .msg-avatar{width:24px;height:24px}
  .bubble h1{font-size:17px}.bubble h2{font-size:15px}.bubble h3{font-size:13.5px}
  .bubble li{font-size:13.5px}
  .composer-meta{padding-top:4px}
  .disclaimer{font-size:9.5px}
}
@media (max-width: 380px){
  .topbar{padding:0 6px;gap:4px}
  .model-select{max-width:100px;font-size:10.5px}
  .conn{padding:4px 6px;font-size:10px}
  .conn-text{display:none}
  .conn-dot{margin:0}
}
@media (min-width: 861px){
  .backdrop{display:none !important}
  #btnOpenSidebar{display:none !important}
  #btnCloseSidebar{display:none !important}
}
@supports (padding: max(0px)){
  .composer-dock{padding-bottom:max(8px, env(safe-area-inset-bottom))}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
}
@media print{
  .sidebar,.topbar,.composer-dock,.backdrop{display:none !important}
  .chat-scroll{overflow:visible}
}