:root{--brand: #3F6E4E;--brand-dark: #2C5038;--accent: #C76B3F;--bg: #FAF8F3;--card: #FFFFFF;--card-soft: #EEF4EE;--border: #E6E1D6;--text: #1F2A20;--text-soft: #5B6B5C;--text-muted: #7A8B7A;--radius-lg: 18px;--radius-md: 14px;--radius-sm: 10px;--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-top: env(safe-area-inset-top, 0px)}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--brand-dark);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--text);-webkit-tap-highlight-color:transparent}#app{height:100%}.app{max-width:480px;margin:0 auto;height:100dvh;display:flex;flex-direction:column;background:var(--bg);overflow:hidden}.header{flex:0 0 auto;background:var(--brand);padding:calc(14px + var(--safe-top)) 16px 12px;display:flex;flex-direction:column;gap:10px}.header-top{display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:8px}.brand-emoji{font-size:22px}.brand-name{color:#fff;font-size:16px;font-weight:700}.icon-btn{width:38px;height:38px;border-radius:10px;border:none;background:#ffffff29;color:#fff;font-size:16px;display:flex;align-items:center;justify-content:center;cursor:pointer}.icon-btn:active{background:#ffffff47}.lang-row{display:flex;gap:6px}.lang-pill{flex:1;padding:7px 0;border-radius:999px;border:1px solid rgba(255,255,255,.4);background:transparent;color:#e8f0e8;font-size:12px;font-weight:600;cursor:pointer}.lang-pill.active{background:#fff;color:var(--brand);border-color:#fff;font-weight:700}.feed{flex:1 1 auto;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px;-webkit-overflow-scrolling:touch}.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:4px;color:var(--text-muted)}.empty-emoji{font-size:40px;margin:0}.empty-title{font-size:14px;font-weight:600;margin:4px 0 0;color:var(--text-soft)}.empty-sub{font-size:12.5px;margin:0}.msg-user{align-self:flex-end;max-width:82%;background:var(--card-soft);border-radius:var(--radius-md) var(--radius-md) 4px var(--radius-md);padding:10px 12px;font-size:13.5px;line-height:1.5;color:var(--text)}.msg-user img{max-width:100%;border-radius:var(--radius-sm);display:block;margin-bottom:6px}.msg-bot{align-self:flex-start;max-width:92%;background:var(--card);border-radius:var(--radius-md) var(--radius-md) var(--radius-md) 4px;padding:4px;box-shadow:0 1px 3px #0000000f;display:flex;flex-direction:column;gap:2px}.msg-bot.loading{padding:14px 16px;color:var(--text-muted);font-size:13px}.report-section{padding:10px 12px;border-bottom:1px solid var(--border);font-size:13.5px;line-height:1.55;white-space:pre-wrap}.report-section:last-child{border-bottom:none}.report-section .label{display:block;font-size:11px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.3px;margin-bottom:3px}.report-section.chemical{background:#fbeae1;border-radius:var(--radius-sm);margin:4px;border-bottom:none}.report-section.answer{font-size:13.5px}.feedback-row{display:flex;gap:8px;padding:2px 4px 6px}.feedback-btn{flex:1;padding:9px 0;border-radius:10px;font-size:12.5px;font-weight:700;cursor:pointer;background:#fff}.feedback-btn.correct{border:1.5px solid var(--brand);color:var(--brand)}.feedback-btn.incorrect{border:1.5px solid var(--accent);color:var(--accent)}.feedback-btn.selected{opacity:.55;pointer-events:none}.feedback-done{font-size:12px;color:var(--text-muted);padding:2px 10px 8px}.error-msg{align-self:flex-start;max-width:85%;background:#fbeae1;color:#8a3e22;border-radius:var(--radius-md);padding:10px 12px;font-size:13px}.composer{flex:0 0 auto;background:var(--bg);border-top:1px solid var(--border);padding:10px 14px calc(14px + var(--safe-bottom));display:flex;flex-direction:column;gap:6px}.image-preview-wrap{position:relative;width:64px;height:64px;border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--border)}.image-preview-wrap.hidden{display:none}.image-preview-wrap img{width:100%;height:100%;object-fit:cover;display:block}.remove-image-btn{position:absolute;top:2px;right:2px;width:20px;height:20px;border-radius:999px;border:none;background:#0000008c;color:#fff;font-size:11px;cursor:pointer}.composer-row{display:flex;align-items:center;gap:8px}.composer-input-label{flex:1;display:flex}.composer-input{width:100%;padding:11px 14px;border-radius:999px;border:1px solid #DAD4C4;background:#fff;font-size:13.5px;outline:none}.composer-input:focus{border-color:var(--brand)}.send-btn{width:42px;height:42px;border-radius:999px;border:none;background:var(--brand);color:#fff;font-size:16px;flex:0 0 auto;cursor:pointer}.send-btn:disabled{opacity:.5}.location-status{font-size:11px;color:var(--text-muted);margin:2px 2px 0}.location-status.hidden{display:none}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}@media (min-width: 480px){html,body{background:#e5ddc9}.app{height:92dvh;margin-top:4dvh;border-radius:24px;box-shadow:0 20px 50px #00000040}}