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35%,#e5e7eb)}h1,h2,h3,h4,h5,h6{margin:0;font-family:var(--font-heading);font-weight:700;letter-spacing:-.02em;line-height:1.2;color:var(--text-dark)}h1{font-size:2.5rem;font-weight:900}h2{font-size:2rem;font-weight:700}h3{font-size:1.5rem;font-weight:700}h4{font-size:1.25rem;font-weight:600}p{margin:0;color:var(--text-medium)}a{color:var(--primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--primary-dark)}.glass{background:var(--glass-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--glass-border);box-shadow:var(--glass-shadow)}.glass-card{background:var(--glass-bg-strong);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border:1px solid rgba(255,255,255,.7);box-shadow:var(--shadow-xl);border-radius:var(--radius-2xl)}button{font-family:var(--font-body);cursor:pointer}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;border-radius:var(--radius-lg);font-family:var(--font-body);font-weight:600;font-size:.95rem;line-height:1;border:none;cursor:pointer;transition:all var(--transition-base);white-space:nowrap}.btn-primary{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;box-shadow:var(--shadow-primary)}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #0076c059}.btn-primary:active:not(:disabled){transform:translateY(0);box-shadow:var(--shadow-primary)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;background:var(--text-muted);box-shadow:none}.btn-secondary{background:var(--bg-white);color:var(--text-dark);border:1px solid var(--border);box-shadow:var(--shadow-sm)}.btn-secondary:hover:not(:disabled){background:var(--bg-secondary);border-color:var(--border);transform:translateY(-1px)}.btn-accent{background:linear-gradient(135deg,var(--accent) 0%,var(--accent-dark) 100%);color:#fff;box-shadow:var(--shadow-accent)}.btn-accent:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #f9731659}.btn-ghost{background:transparent;color:var(--text-medium);padding:.5rem}.btn-ghost:hover{background:var(--bg-secondary);color:var(--text-dark)}.btn-sm{padding:.5rem 1rem;font-size:.875rem}.btn-lg{padding:1rem 2rem;font-size:1.05rem}.form-group{margin-bottom:1.5rem}.form-label{display:block;font-size:.875rem;font-weight:600;color:var(--text-dark);margin-bottom:.5rem}.form-input,.form-select,.form-textarea{width:100%;padding:.875rem 1rem;border:1.5px solid var(--border);border-radius:var(--radius-lg);background-color:var(--bg-white);font-family:var(--font-body);font-size:.95rem;color:var(--text-dark);transition:all var(--transition-fast);box-shadow:var(--shadow-xs)}.form-input:hover,.form-select:hover,.form-textarea:hover{border-color:var(--text-muted)}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #0076c026}.form-input::placeholder,.form-textarea::placeholder{color:var(--text-muted)}.form-input-error{border-color:#ef4444!important}.form-input-error:focus{box-shadow:0 0 0 3px #ef444426!important;border-color:#ef4444!important}.form-error{display:block;font-size:.75rem;color:#ef4444;margin-top:.25rem}.form-textarea{resize:vertical;min-height:120px}.form-select{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 1rem center;padding-right:2.5rem}.app-fullscreen{display:flex;flex-direction:column;height:100vh;height:100dvh;overflow:hidden}.chat-fullscreen{flex:1;overflow:hidden;display:flex;flex-direction:column;max-width:900px;width:100%;margin:0 auto}.modal-overlay{position:fixed;inset:0;background:#0f172a99;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:1000;display:flex;align-items:center;justify-content:center;padding:1rem}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}*{scrollbar-width:thin;scrollbar-color:var(--border) transparent}*:focus-visible{outline:2px solid var(--primary);outline-offset:2px}button:focus-visible,a:focus-visible{outline:2px solid var(--primary);outline-offset:2px}input:focus-visible,textarea:focus-visible,select:focus-visible{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #0076c033}.skip-link{position:absolute;top:-100px;left:0;background:var(--primary);color:#fff;padding:1rem;z-index:10000;text-decoration:none;font-weight:600}.skip-link:focus{top:0}.sr-only,.live-region{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(prefers-contrast:high){:root{--border: #000000;--text-light: #1a1a1a;--text-muted: #333333}.btn-primary{border:2px solid currentColor}.form-input,.form-select,.form-textarea{border-width:2px}}@media(forced-colors:active){.btn-primary,.avatar{border:2px solid ButtonText}.message-content{border:1px solid CanvasText}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.6}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.text-primary{color:var(--primary)}.text-accent{color:var(--accent)}.text-muted{color:var(--text-muted)}.bg-primary{background-color:var(--primary)}.bg-accent{background-color:var(--accent)}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}[data-theme=dark]{--primary: #6894D5;--primary-light: #9DB6E3;--primary-dark: #0076C0;--primary-50: rgba(104, 148, 213, .1);--primary-100: rgba(104, 148, 213, .15);--primary-200: rgba(104, 148, 213, .2);--accent: #FB923C;--accent-light: #FDBA74;--accent-dark: #F97316;--accent-50: rgba(251, 146, 60, .1);--text-dark: #F1F5F9;--text-medium: #CBD5E1;--text-light: #94A3B8;--text-muted: #64748B;--bg-primary: #0F172A;--bg-secondary: #1E293B;--bg-white: #1E293B;--surface: #1E293B;--surface-elevated: #334155;--border: #334155;--border-light: #1E293B;--border-focus: var(--primary);--glass-bg: rgba(30, 41, 59, .85);--glass-bg-strong: rgba(30, 41, 59, .95);--glass-border: rgba(51, 65, 85, .6);--glass-shadow: 0 8px 32px rgba(0, 0, 0, .3);--shadow-xs: 0 1px 2px rgba(0, 0, 0, .2);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .25), 0 1px 2px rgba(0, 0, 0, .2);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .3), 0 2px 4px -1px rgba(0, 0, 0, .2);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .35), 0 4px 6px -2px rgba(0, 0, 0, .2);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .35), 0 10px 10px -5px rgba(0, 0, 0, .15);--shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, .5);--shadow-primary: 0 4px 14px rgba(104, 148, 213, .3);--shadow-accent: 0 4px 14px rgba(251, 146, 60, .3)}[data-theme=dark] body:before{background:none}[data-theme=dark] .glass{background:var(--glass-bg);border-color:var(--glass-border)}[data-theme=dark] .glass-card{background:var(--glass-bg-strong);border-color:var(--border)}[data-theme=dark] .form-input,[data-theme=dark] .form-select,[data-theme=dark] .form-textarea{background-color:var(--bg-secondary);border-color:var(--border);color:var(--text-dark)}[data-theme=dark] .form-input:focus,[data-theme=dark] .form-select:focus,[data-theme=dark] .form-textarea:focus{background-color:var(--surface-elevated);border-color:var(--primary);box-shadow:0 0 0 3px #6894d533}[data-theme=dark] .btn-secondary{background:var(--bg-secondary);color:var(--text-dark);border-color:var(--border)}[data-theme=dark] .btn-secondary:hover:not(:disabled){background:var(--surface-elevated)}@media(max-width:640px){body{font-size:.9375rem}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}.btn{padding:.625rem 1.25rem;font-size:.9rem}.btn-lg{padding:.875rem 1.5rem;font-size:1rem}.form-input,.form-select,.form-textarea{padding:.75rem;font-size:1rem}.modal-overlay{padding:0;align-items:flex-end}.glass-card{border-radius:var(--radius-xl) var(--radius-xl) 0 0;max-height:95vh}}@media(min-width:641px)and (max-width:1024px){.modal-overlay{padding:1rem}}@media(hover:none)and (pointer:coarse){.btn,.icon-btn,button{min-height:44px;min-width:44px}.btn:hover{transform:none}.glass-card:hover{box-shadow:var(--shadow-xl)}.btn:active,.icon-btn:active,button:active{transform:scale(.98);opacity:.9}}@supports (padding: env(safe-area-inset-bottom)){.chat-input-area{padding-bottom:calc(1rem + env(safe-area-inset-bottom))}.modal-overlay{padding-bottom:env(safe-area-inset-bottom)}}@media(max-width:640px){::-webkit-scrollbar{width:0;height:0}*{scrollbar-width:none}.chat-fullscreen{max-width:100%}}