:root{color-scheme:light;--bg: #fbfbf8;--bg-glow: rgba(255, 122, 36, .12);--panel: rgba(255, 255, 255, .84);--panel-strong: rgba(255, 255, 255, .94);--line: rgba(24, 24, 23, .1);--line-strong: rgba(255, 106, 26, .42);--text: #151515;--muted: #76706a;--muted-soft: #968f88;--brand: #ff6a1a;--brand-dark: #e25b14;--assistant-bg: #ffffff;--user-bg: #fff1e7;--shadow: 0 18px 44px rgba(25, 23, 20, .08);--shadow-soft: 0 10px 28px rgba(25, 23, 20, .05);font-family:Segoe UI,Helvetica Neue,Arial,sans-serif;line-height:1.5;font-weight:400}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;min-height:100vh;color:var(--text);background:radial-gradient(circle at 12% 20%,var(--bg-glow),transparent 26%),radial-gradient(circle at 84% 74%,rgba(255,188,133,.12),transparent 22%),linear-gradient(180deg,#fffefc 0%,var(--bg) 100%)}button,select,textarea{font:inherit}button{border:0;background:transparent}.app-shell{width:min(1080px,calc(100% - 28px));margin:0 auto;padding:92px 0 28px}.app-stage{min-height:calc(100vh - 120px);display:flex;flex-direction:column}.session-header{position:relative;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:18px}.header-copy{max-width:620px}.header-copy h1{margin:0;font-size:clamp(1.9rem,3.4vw,3.1rem);letter-spacing:-.04em;font-weight:600}.hero-text,.field-help,.status-text,.composer-hint,.empty-state p,.empty-subtext{color:var(--muted)}.hero-text{margin:10px 0 0;max-width:52ch;font-size:.98rem}.session-toolbar{position:relative;display:flex;align-items:center;gap:10px;justify-content:flex-end}.toolbar-button{padding:10px 14px;border-radius:999px;border:1px solid var(--line);background:#ffffffdb;color:var(--text);cursor:pointer;transition:border-color .16s ease,transform .16s ease,opacity .16s ease}#drawerToggle{display:inline-flex;align-items:center;gap:10px;position:relative;z-index:36}.drawer-chevron{display:inline-flex;transition:transform .16s ease}#drawerToggle[aria-expanded=true] .drawer-chevron{transform:rotate(180deg)}.toolbar-button:hover{transform:translateY(-1px);border-color:#ff6a1a47}.toolbar-button:disabled{cursor:not-allowed;opacity:.55;transform:none}.toolbar-button-primary{border-color:#ff6a1a47;color:var(--brand-dark)}.session-panel{position:fixed;bottom:0;left:0;top:54px;right:-23px;z-index:35;display:flex;align-items:flex-start;justify-content:flex-end;padding:92px max(16px,calc((100vw - 1080px)/2 + 14px)) 24px 16px;background:#12110f1f;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.session-panel[hidden]{display:none}.session-meta{width:min(560px,calc(100vw - 32px));padding:18px 20px;border:1px solid rgba(24,24,23,.06);border-radius:24px;background:#fffffff5;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);box-shadow:var(--shadow);display:grid;gap:18px}.panel-actions{display:flex;justify-content:flex-end;gap:10px}.meta-block{display:grid;gap:10px}.field-label,.status-label,.message-role{font-size:.76rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.select-field{width:100%;padding:13px 16px;border:1px solid rgba(24,24,23,.1);border-radius:16px;background:#fffffff5;color:var(--text)}.select-field:disabled,textarea:disabled{cursor:not-allowed;opacity:.65}.field-help{margin:0;font-size:.94rem}.status-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.status-card{padding:14px 16px;border:1px solid rgba(24,24,23,.08);border-radius:18px;background:var(--panel-strong)}.status-label{margin:0 0 8px;color:var(--brand-dark)}.status-text{margin:0;font-size:.96rem}.progress-wrap{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center;margin-top:12px}progress{width:100%;height:10px;border:0;border-radius:999px;overflow:hidden;background:#ff6a1a24}progress::-webkit-progress-bar{background:#ff6a1a24}progress::-webkit-progress-value{background:linear-gradient(90deg,var(--brand-dark),var(--brand))}progress::-moz-progress-bar{background:linear-gradient(90deg,var(--brand-dark),var(--brand))}.progress-value{min-width:50px;text-align:right;color:var(--brand-dark);font-weight:700}.chat-view{flex:1;display:flex;flex-direction:column;min-height:0;padding-top:8px}.chat-log{flex:1;display:flex;flex-direction:column;gap:18px;min-height:320px;overflow:auto;padding:14px 6px 120px}.app-shell[data-chat-state=idle] .chat-log{justify-content:center;align-items:center;text-align:center;padding-bottom:180px}.empty-hero{max-width:680px}.empty-hero h2{margin:0;font-size:clamp(2rem,4vw,3.2rem);letter-spacing:-.05em;font-weight:500}.empty-subtext{margin:10px 0 0;font-size:1rem}.empty-state{display:grid;gap:18px;max-width:720px;justify-items:center}.empty-state p{margin:0;font-size:.98rem}.message{width:min(760px,100%);padding:20px 24px;border:1px solid rgba(24,24,23,.08);border-radius:24px;background:var(--assistant-bg);box-shadow:var(--shadow-soft)}.message-user{align-self:flex-end;width:fit-content;max-width:min(560px,100%);background:var(--user-bg);border-color:#ff6a1a1f}.message-assistant{align-self:flex-start}.message-role{margin:0 0 10px;color:var(--brand-dark)}.message-body{word-break:break-word;font-size:1.02rem;line-height:1.72}.message-body>:first-child{margin-top:0}.message-body>:last-child{margin-bottom:0}.message-heading{letter-spacing:-.03em;line-height:1.2;font-weight:600}.message-heading-1{margin:0 0 .8rem;font-size:1.5rem}.message-heading-2{margin:0 0 .7rem;font-size:1.28rem}.message-heading-3{margin:0 0 .6rem;font-size:1.12rem}.message-paragraph{margin:0 0 1rem}.message-list{margin:0 0 1rem;padding-left:1.4rem}.message-list li+li{margin-top:.42rem}.message-body code{padding:.1rem .38rem;border-radius:8px;background:#1111110f;font-size:.94em}.message-actions{display:flex;gap:8px;margin-top:14px;padding-top:14px;border-top:1px solid rgba(24,24,23,.08)}.message-action-button{padding:6px 10px;border:1px solid rgba(24,24,23,.1);border-radius:999px;background:#ffffffeb;color:var(--muted);cursor:pointer;transition:border-color .16s ease,color .16s ease,background-color .16s ease}.message-action-button:hover{border-color:#ff6a1a3d;color:var(--text)}.message-action-button:disabled{cursor:not-allowed;opacity:.5}.composer-shell{position:sticky;bottom:12px;z-index:3;display:flex;justify-content:center}.composer{width:min(860px,100%)}.composer-bar{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:end;gap:12px;padding:10px 10px 10px 16px;border:1.5px solid var(--line-strong);border-radius:28px;background:#fffffff5;box-shadow:0 18px 36px #ff772814}.composer-leading{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;color:#4a4642;font-size:1.55rem;line-height:1}textarea{width:100%;min-height:30px;max-height:180px;padding:7px 0 6px;border:0;background:transparent;color:var(--text);resize:none;overflow-y:auto;line-height:1.6}textarea:focus,.select-field:focus,.toolbar-button:focus,.send-button:focus{outline:none}textarea::placeholder{color:var(--muted-soft)}.composer-trailing{display:flex;align-items:center;gap:12px}.composer-mode{color:var(--muted);font-size:.94rem;white-space:nowrap}.send-button{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:999px;background:#111;color:#fff;cursor:pointer;transition:transform .16s ease,opacity .16s ease}.send-button:hover{transform:scale(1.03)}.send-button:disabled{cursor:not-allowed;opacity:.5;transform:none}.send-button-icon{font-size:1rem;line-height:1}.composer-footer{display:flex;justify-content:center;padding-top:10px}.composer-hint{margin:0;font-size:.88rem;text-align:center}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.app-shell[data-chat-state=idle] .session-header{justify-content:center;text-align:center}.app-shell[data-chat-state=idle] .session-toolbar{position:absolute;top:0;right:0}.app-shell[data-chat-state=idle] .composer-shell{margin-top:28px}@media (max-width: 860px){.app-shell{width:min(100% - 20px,1080px);padding-top:112px}.session-header{flex-direction:column;align-items:stretch}.session-toolbar{flex-wrap:wrap;justify-content:flex-end}.panel-actions{flex-wrap:wrap}.status-row{grid-template-columns:1fr}.message{width:100%}.message-user{max-width:100%}}@media (max-width: 640px){.app-shell{padding-top:120px}.app-shell[data-chat-state=idle] .session-toolbar,.session-toolbar{position:static;justify-content:center}.session-panel{justify-content:center;padding:84px 12px 20px}.session-meta{width:min(100%,560px);padding:16px;border-radius:20px}.panel-actions{flex-direction:column}.panel-actions .toolbar-button{width:100%}.composer-bar{grid-template-columns:1fr;align-items:stretch;gap:8px;padding:12px;border-radius:24px}.composer-leading{display:none}.composer-trailing{justify-content:space-between}}