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#0ea5e91a}.epic-clear{position:absolute;right:.25rem;top:50%;transform:translateY(-50%);display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:none;border:none;border-radius:var(--radius-sm);color:var(--bk-text-secondary);cursor:pointer;font-size:.85rem}.epic-dropdown{position:absolute;top:calc(100% + 6px);left:0;right:0;max-height:240px;overflow-y:auto;background:var(--bk-surface);border:1px solid var(--bk-border);border-radius:var(--radius-md);box-shadow:var(--shadow-xl);list-style:none;margin:0;padding:.35rem;z-index:20;transform-origin:top;animation:dropIn .18s var(--transition-base)}.epic-dropdown li{padding:.625rem .75rem;border-radius:var(--radius-sm);font-size:.85rem;color:var(--bk-text-secondary);cursor:pointer;transition:background var(--transition-fast)}.epic-dropdown li strong{color:var(--bk-text)}.epic-dropdown li:hover,.epic-dropdown li.active{background:var(--bk-surface-hover)}.input-row{display:flex;gap:.75rem;align-items:flex-end}.input-row textarea{flex:1;padding:.875rem 1rem;border:1px solid var(--bk-border);border-radius:var(--radius-lg);resize:none;font-family:inherit;font-size:.95rem;line-height:1.5;min-height:48px;max-height:160px;transition:all var(--transition-fast);background:var(--bk-bg)}.input-row textarea:focus{outline:none;border-color:var(--bk-accent);box-shadow:0 0 0 3px #0ea5e91a;background:var(--bk-surface)}.input-row button{display:flex;align-items:center;justify-content:center;width:48px;height:48px;background:linear-gradient(135deg,var(--bk-accent) 0%,var(--bk-purple) 55%);color:#fff;border:none;border-radius:var(--radius-lg);cursor:pointer;font-size:1.1rem;transition:all var(--transition-fast);box-shadow:var(--shadow);flex-shrink:0}.input-row button:hover:not(:disabled){transform:translateY(-2px) scale(1.02);box-shadow:var(--shadow-lg)}.input-row button:active:not(:disabled){transform:translateY(0) scale(.96)}.input-row button:disabled{background:var(--bk-text-muted);cursor:not-allowed;transform:none;box-shadow:none}.input-hint{font-size:.72rem;color:var(--bk-text-secondary);text-align:right;padding-right:.25rem}@media (max-width: 768px){.back-button{display:flex;width:44px;height:44px}.chat{width:100%}.message{max-width:92%}.chat-header-right{flex-direction:column;align-items:flex-end;gap:.3rem}.input-hint{display:none}.epic-picker input,.input-row textarea{font-size:16px}.chat-input-area{padding-bottom:max(var(--space-lg),env(safe-area-inset-bottom))}}.app-layout{display:flex;min-height:100vh;min-height:100dvh;overflow:hidden}.mobile-menu-button{display:none;position:fixed;top:1rem;left:1rem;z-index:50;width:40px;height:40px;background:var(--bk-surface);border:1px solid var(--bk-border);border-radius:var(--radius-md);font-size:1.25rem;cursor:pointer;color:var(--bk-text-secondary);transition:all var(--transition-fast);box-shadow:var(--shadow);align-items:center;justify-content:center}.mobile-menu-button:hover{background:var(--bk-surface-hover);border-color:var(--bk-accent);color:var(--bk-accent)}.main-content{flex:1;display:flex;align-items:center;justify-content:center;position:relative}.empty-state{text-align:center;color:var(--bk-text-secondary);padding:2rem;max-width:420px;animation:fadeIn .5s var(--transition-slow)}.empty-state-icon{font-size:4rem;margin-bottom:1rem;display:block}.empty-state h2{color:var(--bk-text);margin-bottom:.75rem;font-size:1.5rem}.empty-state p{margin-bottom:1.5rem;line-height:1.6}.create-button{display:inline-flex;align-items:center;gap:.5rem;background:linear-gradient(135deg,var(--bk-accent) 0%,var(--bk-purple) 55%);color:#fff;border:none;padding:.875rem 1.5rem;border-radius:var(--radius-lg);cursor:pointer;font-weight:600;font-size:1rem;transition:all var(--transition-fast);box-shadow:var(--shadow-lg)}.create-button:hover{transform:translateY(-2px);box-shadow:var(--shadow-xl)}.create-button:active{transform:translateY(0)}.loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;min-height:100dvh;color:var(--bk-text-secondary);gap:1rem;animation:fadeIn .3s var(--transition-slow)}.loading-spinner{width:40px;height:40px;border:3px solid var(--bk-border);border-top-color:var(--bk-accent);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (max-width: 768px){.mobile-menu-button{display:flex;width:44px;height:44px}.main-content{width:100%}}:root{--bk-primary: #0f172a;--bk-primary-light: #1e293b;--bk-accent: #0ea5e9;--bk-accent-light: #38bdf8;--bk-success: #10b981;--bk-warning: #f59e0b;--bk-danger: #ef4444;--bk-purple: #8b5cf6;--bk-blush: #fda4af;--bk-bg: #f8fafc;--bg-gradient-start: #f1f5f9;--bg-gradient-end: #e2e8f0;--bk-surface: #ffffff;--bk-surface-elevated: #ffffff;--bk-surface-hover: #f1f5f9;--bk-text: #0f172a;--bk-text-secondary: #475569;--bk-text-muted: #94a3b8;--bk-text-on-primary: #ffffff;--bk-border: #e2e8f0;--bk-border-light: #f1f5f9;--shadow-sm: 0 1px 2px 0 rgb(15 23 42 / .05);--shadow: 0 4px 6px -1px rgb(15 23 42 / .08), 0 2px 4px -2px rgb(15 23 42 / .04);--shadow-lg: 0 10px 15px -3px rgb(15 23 42 / .1), 0 4px 6px -4px rgb(15 23 42 / .08);--shadow-xl: 0 20px 25px -5px rgb(15 23 42 / .12), 0 8px 10px -6px rgb(15 23 42 / .08);--bk-sidebar-width: 340px;--bk-mobile-breakpoint: 768px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .35s cubic-bezier(.4, 0, .2, 1);--space-2xs: .25rem;--space-xs: .5rem;--space-sm: .75rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem}*{box-sizing:border-box}html{font-size:16px}body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:linear-gradient(135deg,var(--bg-gradient-start) 0%,var(--bg-gradient-end) 100%);background-attachment:fixed;color:var(--bk-text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button,input,textarea{font-family:inherit}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bk-text-muted);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--bk-text-secondary)}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(-12px)}to{opacity:1;transform:translate(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes bounce{0%,80%,to{transform:translateY(0)}40%{transform:translateY(-4px)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes dropIn{0%{opacity:0;transform:translateY(-6px) scaleY(.96)}to{opacity:1;transform:translateY(0) scaleY(1)}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}