*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--va-red: #e2001a;--va-dark-red: #b5001b;--va-gold: #f4b400;--va-green: #128a50;--va-slate: #5b6472;--va-light-gray: #f5f5f5;--va-border: #e0e0e0;--va-text: #1a1a1a;--va-subtext: #666;--user-bubble: #e2001a;--ai-bubble: #ffffff;--sidebar-bg: #1a1a1a;--sidebar-text: #ffffff;--error-bg: #fff0f2;--error-border: #f3b5bf;--font: "Segoe UI", system-ui, -apple-system, sans-serif}body{font-family:var(--font);background:var(--va-light-gray);color:var(--va-text);height:100dvh;display:flex;flex-direction:column}#app{display:flex;flex-direction:column;height:100dvh}header{background:var(--va-red);color:#fff;padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between;flex-shrink:0;box-shadow:0 2px 8px #0000002e;z-index:10}.header-brand{display:flex;align-items:center;gap:12px}.header-brand svg{flex-shrink:0}.header-title{font-size:1.1rem;font-weight:700;letter-spacing:.3px}.header-badge{background:#fff3;border:1px solid rgba(255,255,255,.35);border-radius:20px;padding:3px 12px;font-size:.75rem;font-weight:600;letter-spacing:.5px}.layout{display:flex;flex:1;overflow:hidden}.sidebar{width:240px;background:var(--sidebar-bg);color:var(--sidebar-text);display:flex;flex-direction:column;flex-shrink:0;overflow-y:auto;padding:16px 0}.sidebar-section{padding:6px 16px;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:#888;margin-top:12px}.sidebar-item{display:flex;align-items:center;gap:10px;padding:10px 16px;cursor:pointer;font-size:.875rem;border-radius:0;transition:background .15s;color:#ccc;border:none;background:none;width:100%;text-align:left}.sidebar-item:hover{background:#ffffff14;color:#fff}.sidebar-item.active{background:#e2001a40;color:#fff;border-left:3px solid 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.2s;font-family:var(--font);color:var(--va-text)}.chip:hover{border-color:var(--va-red);background:#fff5f5}.message-row{display:flex;align-items:flex-end;gap:10px}.message-row.user{flex-direction:row-reverse}.avatar{width:34px;height:34px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:.9rem;font-weight:700}.avatar.ai{background:var(--va-red);color:#fff;font-size:.75rem}.avatar.user{background:#333;color:#fff}.bubble{max-width:68%;padding:12px 16px;border-radius:18px;line-height:1.55;font-size:.92rem;white-space:pre-wrap}.message-row.user .bubble{background:var(--user-bubble);color:#fff;border-bottom-right-radius:4px}.message-row.ai .bubble{background:var(--ai-bubble);color:var(--va-text);border-bottom-left-radius:4px;box-shadow:0 1px 4px #0000001a}.message-row.ai .bubble.error{background:var(--error-bg);border:1px solid var(--error-border)}.flight-card{min-width:min(420px,100%);max-width:74%;display:flex;flex-direction:column;gap:10px;background:linear-gradient(180deg,#fff,#fff8f8);border:1px solid rgba(226,0,26,.12);box-shadow:0 12px 24px #e2001a14}.flight-card__eyebrow{font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--va-red)}.flight-card__topline{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.flight-card__title{font-size:1.2rem;font-weight:800;color:var(--va-text)}.flight-card__route{margin-top:4px;color:var(--va-subtext);font-size:.92rem}.flight-card__status{border-radius:999px;padding:6px 10px;font-size:.72rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase;white-space:nowrap}.flight-card__status--on-time{background:#128a501f;color:var(--va-green)}.flight-card__status--delayed{background:#f4b40029;color:#9a6b00}.flight-card__status--cancelled{background:#e2001a1f;color:var(--va-red)}.flight-card__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.flight-card__field{display:flex;flex-direction:column;gap:4px;min-width:0}.flight-card__label{font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--va-slate)}.flight-card__value{font-size:.94rem;font-weight:700;color:var(--va-text)}.flight-card--loading{position:relative}.flight-card__loading{display:grid;gap:10px}.flight-card__skeleton{display:block;border-radius:999px;background:linear-gradient(90deg,#f2f2f2,#ebebeb,#f2f2f2);background-size:200% 100%;animation:shimmer 1.4s ease-in-out infinite}.flight-card__skeleton--title{width:54%;height:18px}.flight-card__skeleton--line{width:100%;height:12px}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.typing-bubble{background:#fff;padding:12px 18px;border-radius:18px 18px 18px 4px;box-shadow:0 1px 4px #0000001a;display:flex;gap:5px;align-items:center}.dot{width:7px;height:7px;border-radius:50%;background:#bbb;animation:bounce 1.2s infinite}.dot:nth-child(2){animation-delay:.2s}.dot:nth-child(3){animation-delay:.4s}@keyframes bounce{0%,80%,to{transform:translateY(0)}40%{transform:translateY(-7px)}}.input-area{padding:16px 32px 20px;background:var(--va-light-gray);border-top:1px solid var(--va-border);flex-shrink:0}.input-row{display:flex;gap:10px;align-items:flex-end;background:#fff;border:1.5px solid var(--va-border);border-radius:26px;padding:8px 8px 8px 18px;transition:border-color .2s}.input-row:focus-within{border-color:var(--va-red)}textarea{flex:1;border:none;outline:none;resize:none;font-family:var(--font);font-size:.93rem;line-height:1.5;max-height:120px;background:transparent;color:var(--va-text)}textarea::placeholder{color:#aaa}.send-btn{width:38px;height:38px;background:var(--va-red);color:#fff;border:none;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .2s;font-size:1rem}.send-btn:hover{background:var(--va-dark-red)}.send-btn:disabled{background:#ccc;cursor:not-allowed}.input-hint{font-size:.75rem;color:#aaa;text-align:center;margin-top:8px}@media(max-width:640px){.sidebar{display:none}.messages{padding:16px}.input-area{padding:12px 16px 16px}.bubble{max-width:82%}.flight-card{max-width:100%;min-width:0}.flight-card__topline{flex-direction:column}.flight-card__grid{grid-template-columns:1fr}}