/* Presentation only: keep the operational chat IDs, events and API contracts. */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap');
:root,body.light-theme{--sidebar-w:232px;--bg:#f5f6f8;--surface:#fff;--panel:#f5f7f9;--border:#dfe3e8;--border-strong:#cbd5df;--text:#171c23;--text-muted:#5c6a79;--primary:#17202a;--primary-hover:#293743;--accent:#0c9e88;--accent-bg:#e7faf3;--font:'DM Sans',sans-serif}
body.light-theme{background:var(--bg);font-family:var(--font);-webkit-font-smoothing:antialiased}
.layout>.sidebar{background:white;color:var(--text);border-right:1px solid var(--border);padding:30px 17px 22px;gap:16px}
.sidebar .sidebar-logo{padding:0 11px 25px;border:0;gap:9px}.sidebar-logo .logo-img{width:41px;height:41px;object-fit:contain}
.sidebar-logo .logo-text{color:#171c23;font:700 29px Manrope,sans-serif;letter-spacing:-1.3px}
.v2-chat-nav{display:grid;gap:7px;margin:0 0 10px;flex-shrink:0}
.v2-chat-nav a{display:flex;align-items:center;gap:11px;padding:13px 12px;min-height:48px;border-radius:8px;color:#515b68;font:500 14px/1.5 'DM Sans',sans-serif;text-decoration:none}
.v2-chat-nav a span{width:20px;flex:none;text-align:center;font-size:18px}.v2-chat-nav a:hover{background:#f1f4f6;color:#101820}
.v2-chat-nav a.selected{background:#17202a;color:white;box-shadow:inset 3px 0 #39d7bc}.v2-chat-nav a.selected span{color:#7de3ca}
.sidebar .btn-new-chat,.mobile-drawer .btn-new-chat{background:#fff;color:#283848;border:1px solid #cdd8e0;min-height:45px;font-size:14px;border-radius:8px}
.sidebar-history{min-height:0;overflow:auto}.sidebar .sidebar-history,.sidebar .sidebar-history button,.sidebar .sidebar-history button *{color:#526373;font-size:13px}
.sidebar .sidebar-history button:hover,.sidebar .sidebar-history a:hover{background:#edf7f3}
.layout>.main{background:#f5f6f8;min-width:0}.chat-header{min-height:80px;display:flex;align-items:center;padding:16px 36px;background:white;border-color:#dfe3e8}.chat-header .header-inner{width:100%;gap:16px}.header-title{font:600 16px Manrope,sans-serif;color:#253340}
.v2-back-workspace{font-size:13px;color:#267d6e;text-decoration:none;margin-left:auto;white-space:nowrap}
.main .messages{padding:32px 36px}.main .welcome{flex:1;max-width:1100px;width:100%;margin:auto;padding:38px 28px;background:white;border:1px solid #dfe6ec;border-radius:15px;gap:12px;min-height:360px}
.main .welcome h2{font:700 clamp(32px,3.3vw,48px)/1.17 Manrope,sans-serif;letter-spacing:-1.9px;max-width:750px;margin:15px auto}
.main .welcome h2 em{font-style:normal;color:#087e74}.main .welcome-logo{width:66px;height:66px;object-fit:contain;margin-bottom:5px;border-radius:0}
.v2-chat-kicker{font-size:10px;letter-spacing:1.3px;color:#577b77;text-transform:uppercase;margin:9px 0 0}
.main .welcome-hint{font-size:15px;line-height:1.85;max-width:510px;color:#627485;margin:0}
.input-bar{background:linear-gradient(transparent,#f5f6f8 28%);padding:14px 36px 25px}.input-wrap{background:#fff!important;border:1px solid #bbcfd8!important;border-radius:12px!important;box-shadow:0 5px 18px #1c596206!important;max-width:1100px}
.input-wrap textarea{font:16px/1.6 'DM Sans',sans-serif;color:#213749}.input-wrap .btn-send{background:#172331;color:white;border-radius:8px;min-width:42px;min-height:42px}
.mobile-drawer{background:#fff!important;color:#253747;border-right:1px solid #dfe3e8}.mobile-drawer .logo-text,.mobile-drawer .btn-close-drawer{color:#172331!important}.mobile-drawer .sidebar-history *{color:#556d7d}
.mobile-drawer .v2-chat-nav{margin:15px 0}.mobile-drawer .v2-chat-nav a{font-size:15px}.drawer-section-label{color:#657b8b}
button:focus-visible,a:focus-visible,textarea:focus-visible{outline:3px solid #12bca4;outline-offset:3px}
@media(max-width:1100px) and (min-width:641px){.main .welcome h2{font-size:35px}.main .messages{padding:24px}.input-bar{padding:14px 24px 24px}.chat-header{padding:16px 24px}.header-title{font-size:14px}}
@media(max-width:640px){
 .v2-back-workspace{display:none}.chat-header{min-height:66px;padding:10px 14px}.chat-header .header-inner{gap:10px}
 .main .messages{padding:20px 16px;gap:20px}.main .welcome{padding:30px 20px;min-height:350px}.main .welcome h2{font-size:32px;letter-spacing:-1.3px;line-height:1.2;margin:12px auto}
 .main .welcome-logo{width:53px;height:53px}.main .welcome-hint{font-size:14px;line-height:1.8}.v2-chat-kicker{font-size:9px}
 .input-bar{padding:10px 14px max(14px,env(safe-area-inset-bottom))}.input-wrap textarea{font-size:16px}.sidebar-logo .logo-text{font-size:26px}
}
@media(prefers-reduced-motion:reduce){.messages{scroll-behavior:auto}}
.layout>.sidebar{overflow-y:auto}
.chat-header .chat-signin-header-btn{min-height:44px;padding:10px 17px;font:600 14px 'DM Sans',sans-serif;background:#172331;color:white;border:1px solid #172331;border-radius:8px}