@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Sans+JP:wght@300;400;500;600;700&display=swap";:root{--color-primary: #1a1a2e;--color-primary-hover: #16213e;--color-primary-light: #e8eaf6;--color-accent: #f59e0b;--color-accent-light: #fef3c7;--color-accent-glow: rgba(245, 158, 11, .3);--gradient-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--gradient-warm: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);--gradient-calm: linear-gradient(160deg, #0093E9 0%, #80D0C7 100%);--gradient-surface: linear-gradient(180deg, #ffffff 0%, #f8f9fc 100%);--color-text: #1e293b;--color-text-secondary: #64748b;--color-text-muted: #94a3b8;--color-text-inverse: #ffffff;--color-bg: #f1f5f9;--color-surface: #ffffff;--color-surface-hover: #f8fafc;--color-surface-elevated: #ffffff;--color-border: #e2e8f0;--color-border-light: #f1f5f9;--color-success: #10b981;--color-info: #3b82f6;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--font-base: "Inter", "Noto Sans JP", -apple-system, BlinkMacSystemFont, sans-serif;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 1.875rem;--radius-sm: .375rem;--radius-md: .625rem;--radius-lg: .875rem;--radius-xl: 1rem;--radius-2xl: 1.25rem;--radius-full: 9999px;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .04);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .07), 0 2px 4px -2px rgba(0, 0, 0, .05);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .08), 0 4px 6px -4px rgba(0, 0, 0, .04);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 8px 10px -6px rgba(0, 0, 0, .04);--shadow-glow: 0 0 20px rgba(102, 126, 234, .15);--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);--transition-spring: .5s cubic-bezier(.34, 1.56, .64, 1);--sidebar-width: 280px;--insight-width: 320px;--header-height: 56px;--input-area-height: auto;--safe-area-bottom: env(safe-area-inset-bottom, 0px)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent;scroll-behavior:smooth}body{font-family:var(--font-base);background-color:var(--color-bg);color:var(--color-text);line-height:1.7;min-height:100vh;min-height:100dvh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow:hidden}#root{height:100vh;height:100dvh}button{cursor:pointer;border:none;background:none;font-family:inherit;font-size:inherit;color:inherit;-webkit-tap-highlight-color:transparent}button:active{transform:scale(.97)}textarea{font-family:inherit}@keyframes fadeIn{to{opacity:1}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse-glow{0%,to{box-shadow:0 8px 30px #667eea40}50%{box-shadow:0 8px 40px #667eea66}}.spinner{animation:spin 1s linear infinite}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-text-muted)}::selection{background:#667eea33;color:var(--color-text)}.app-layout{display:flex;height:100%;position:relative;overflow:hidden;background:var(--color-surface)}.sidebar-overlay{position:fixed;inset:0;background:#0f172a99;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:40;opacity:0;animation:fadeIn var(--transition-base) forwards}.sidebar{display:flex;flex-direction:column;width:var(--sidebar-width);height:100%;background:var(--gradient-surface);border-right:1px solid var(--color-border);padding:var(--space-4);position:fixed;left:0;top:0;z-index:50;transform:translate(-100%);transition:transform var(--transition-slow);will-change:transform}.sidebar.is-open{transform:translate(0)}.sidebar__mobile-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-4);padding-bottom:var(--space-3);border-bottom:1px solid var(--color-border-light)}.sidebar__mobile-header span{font-weight:600;font-size:var(--text-sm);color:var(--color-text-secondary);letter-spacing:.02em}.sidebar__close-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);color:var(--color-text-secondary);transition:all var(--transition-fast)}.sidebar__close-btn:hover{background:var(--color-surface-hover);color:var(--color-text)}.sidebar__new-chat-btn{display:flex;align-items:center;gap:var(--space-3);width:100%;padding:var(--space-3) var(--space-4);border-radius:var(--radius-lg);border:1px solid var(--color-border);font-weight:500;font-size:var(--text-sm);color:var(--color-text);background:var(--color-surface);transition:all var(--transition-fast);box-shadow:var(--shadow-xs);margin-bottom:var(--space-6)}.sidebar__new-chat-btn:hover{background:var(--color-primary-light);border-color:var(--color-primary);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.sidebar__new-chat-btn:active{transform:translateY(0) scale(.98)}.sidebar__history{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch}.sidebar__history-label{font-size:var(--text-xs);font-weight:600;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.08em;padding:0 var(--space-2);margin-bottom:var(--space-2)}.sidebar__history-list{display:flex;flex-direction:column;gap:2px}.sidebar__history-item{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);font-size:var(--text-sm);color:var(--color-text-secondary);text-align:left;transition:all var(--transition-fast)}.sidebar__history-item:hover{background:var(--color-surface-hover);color:var(--color-text)}.sidebar__history-item svg:first-child{flex-shrink:0;opacity:.5}.sidebar__history-item-title{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar__history-delete-btn{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:var(--radius-md);color:var(--color-text-muted);opacity:0;pointer-events:none;transition:all var(--transition-fast);cursor:pointer}.sidebar__history-item:hover .sidebar__history-delete-btn{opacity:1;pointer-events:auto}.sidebar__history-delete-btn:hover{background:#ef444426;color:#ef4444}@media(hover:none){.sidebar__history-delete-btn{opacity:.5;pointer-events:auto}}.sidebar__history-item--confirming{background:#ef444414}.sidebar__history-confirm-icon{flex-shrink:0;color:#ef4444;opacity:.8}.sidebar__history-item-title--confirm{color:#ef4444;font-weight:500;font-size:var(--text-xs)}.sidebar__history-confirm-btn{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.sidebar__history-confirm-btn--yes{color:#ef4444}.sidebar__history-confirm-btn--yes:hover{background:#ef444433;color:#dc2626}.sidebar__history-confirm-btn--no{color:var(--color-text-muted)}.sidebar__history-confirm-btn--no:hover{background:var(--color-surface-hover);color:var(--color-text)}.sidebar__footer{margin-top:auto;padding-top:var(--space-4);border-top:1px 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var(--color-border-light)}.sidebar__user-info{display:flex;align-items:center;gap:var(--space-3);min-width:0;flex:1}.sidebar__user-avatar{width:32px;height:32px;border-radius:50%;flex-shrink:0;object-fit:cover}.sidebar__user-avatar--placeholder{display:flex;align-items:center;justify-content:center;background:var(--gradient-bg);color:#fff;font-size:var(--text-xs);font-weight:700}.sidebar__user-details{display:flex;flex-direction:column;min-width:0}.sidebar__user-name{font-size:var(--text-sm);font-weight:600;color:var(--color-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar__user-email{font-size:var(--text-xs);color:var(--color-text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar__logout-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);color:var(--color-text-muted);flex-shrink:0;transition:all var(--transition-fast)}.sidebar__logout-btn:hover{background:#ef44441a;color:#ef4444}.chat-area{flex:1;display:flex;flex-direction:column;min-width:0;position:relative;background:var(--color-bg)}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) var(--space-4);height:var(--header-height);background:#ffffffd9;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--color-border-light);position:sticky;top:0;z-index:10}.chat-header__left{display:flex;align-items:center;gap:var(--space-2)}.chat-header__menu-btn{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-lg);color:var(--color-text-secondary);transition:all var(--transition-fast)}.chat-header__menu-btn:hover{background:var(--color-surface-hover)}.chat-header__logo{display:flex;align-items:center;gap:var(--space-2)}.chat-header__logo-icon{width:28px;height:28px;border-radius:var(--radius-md);background:var(--gradient-bg);display:flex;align-items:center;justify-content:center;font-size:var(--text-xs);color:#fff;font-weight:700}.chat-header__logo-text{font-weight:700;font-size:var(--text-base);background:var(--gradient-bg);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.chat-header__insight-btn{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-lg);font-size:var(--text-lg);transition:all var(--transition-fast);position:relative}.chat-header__insight-btn:after{content:"";position:absolute;top:8px;right:8px;width:6px;height:6px;border-radius:50%;background:var(--color-accent);box-shadow:0 0 6px var(--color-accent-glow)}.chat-header__insight-btn:hover{background:var(--color-surface-hover)}.chat-messages{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:var(--space-4);display:flex;flex-direction:column;gap:var(--space-6)}.chat-messages::-webkit-scrollbar{width:4px}.chat-messages::-webkit-scrollbar-track{background:transparent}.chat-messages::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full)}.chat-empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:var(--space-8);animation:fadeInUp .6s ease-out}.chat-empty-state__icon{width:72px;height:72px;border-radius:50%;overflow:hidden;background:var(--gradient-bg);display:flex;align-items:center;justify-content:center;margin-bottom:var(--space-6);box-shadow:0 8px 30px #667eea40;animation:pulse-glow 3s ease-in-out 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#667eea4d}.message__content{flex:1;min-width:0}.message__name{font-size:var(--text-xs);font-weight:600;color:var(--color-text-muted);margin-bottom:var(--space-1);letter-spacing:.02em}.message__text{font-size:var(--text-sm);line-height:1.8;color:var(--color-text);background:var(--color-surface);padding:var(--space-3) var(--space-4);border-radius:4px var(--radius-xl) var(--radius-xl) var(--radius-xl);box-shadow:var(--shadow-sm);word-break:break-word}.chat-message{display:flex;gap:var(--space-3);max-width:720px;width:100%;margin:0 auto;animation:messageIn var(--transition-base) ease-out}.chat-message--user{justify-content:flex-end}.chat-message--assistant{justify-content:flex-start}.chat-message__avatar{width:36px;height:36px;border-radius:50%;overflow:hidden;flex-shrink:0;background:var(--gradient-bg);box-shadow:0 2px 8px #667eea4d}.chat-message__avatar img{width:100%;height:100%;object-fit:cover}.chat-message__bubble{max-width:75%;padding:var(--space-3) var(--space-4);border-radius:var(--radius-xl);font-size:var(--text-sm);line-height:1.8;word-break:break-word;box-shadow:var(--shadow-sm)}.chat-message--user .chat-message__bubble{background:var(--gradient-bg);color:#fff;border-bottom-right-radius:4px}.chat-message--assistant .chat-message__bubble{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border-light);border-bottom-left-radius:4px}.chat-message__text{margin:0;white-space:pre-wrap}.chat-message__time{display:block;font-size:10px;text-align:right;margin-top:4px;opacity:.5}.chat-message--user .chat-message__time{color:#ffffffb3}.chat-message--assistant .chat-message__time{color:var(--color-text-muted)}.chat-message__bubble--loading{display:flex;align-items:center;gap:var(--space-2);color:var(--color-text-muted);font-size:var(--text-sm)}.chat-message__spinner{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.chat-input-area{padding:var(--space-3) var(--space-4);padding-bottom:calc(var(--space-3) + var(--safe-area-bottom));background:#ffffffe6;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--color-border-light)}.chat-input-wrapper{max-width:720px;margin:0 auto;position:relative;display:flex;align-items:flex-end;gap:var(--space-2);background:var(--color-surface);border:1.5px solid var(--color-border);border-radius:var(--radius-2xl);padding:var(--space-2) var(--space-2) var(--space-2) var(--space-4);transition:all var(--transition-fast);box-shadow:var(--shadow-sm)}.chat-input-wrapper:focus-within{border-color:#667eea;box-shadow:0 0 0 3px #667eea1a,var(--shadow-md)}.chat-input{flex:1;border:none;outline:none;resize:none;font-size:var(--text-sm);line-height:1.6;padding:var(--space-2) 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var(--color-border);position:fixed;right:0;top:0;z-index:50;transform:translate(100%);transition:transform var(--transition-slow);will-change:transform}.insight-panel.is-open{transform:translate(0)}.insight-panel__header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4);border-bottom:1px solid var(--color-border-light);min-height:var(--header-height)}.insight-panel__title{font-size:var(--text-sm);font-weight:700;display:flex;align-items:center;gap:var(--space-2)}.insight-panel__close-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);color:var(--color-text-secondary);transition:all var(--transition-fast)}.insight-panel__close-btn:hover{background:var(--color-surface-hover);color:var(--color-text)}.insight-panel__body{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:var(--space-4)}.insight-section{margin-bottom:var(--space-6)}.insight-section__title{font-size:var(--text-xs);font-weight:700;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:var(--space-3)}.insight-card{background:var(--color-surface);padding:var(--space-4);border-radius:var(--radius-lg);border:1px solid var(--color-border-light);box-shadow:var(--shadow-xs)}.insight-card__text{font-size:var(--text-sm);color:var(--color-text-secondary);line-height:1.8}.insight-card__loading{color:var(--color-text-muted);font-style:italic;animation:pulse-loading 1.5s ease-in-out infinite}@keyframes pulse-loading{0%,to{opacity:.5}50%{opacity:1}}.insight-tags{display:flex;flex-wrap:wrap;gap:var(--space-2)}.insight-tag{display:inline-flex;align-items:center;gap:var(--space-1);padding:var(--space-1) var(--space-3);border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:500;border:1px solid;transition:all var(--transition-fast)}.insight-tag--default{background:var(--color-accent-light);color:#92400e;border-color:#fde68a}.insight-tag--info{background:#eff6ff;color:#1d4ed8;border-color:#bfdbfe}.chat-message__debug{margin-top:8px;padding:10px 12px;background-color:#1e1e32e6;border-radius:var(--radius-md);font-size:11px;font-family:monospace;color:#e2e8f0;border:1px solid rgba(102,126,234,.3);text-align:left;max-width:100%;overflow-x:auto;line-height:1.6}.chat-message__debug-role{color:#fbbf24;font-weight:700}.chat-message__debug-heading{margin-top:4px;font-weight:700;color:#667eea}.chat-message__debug-flags{margin-top:4px;display:flex;gap:8px;flex-wrap:wrap}.debug-float-btn{position:fixed;bottom:80px;right:16px;z-index:100;width:40px;height:40px;border-radius:50%;border:1px solid var(--color-border);background:#ffffffe6;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px #0000001a;transition:all var(--transition-fast);opacity:.8}.debug-float-btn:hover{opacity:1;transform:scale(1.1)}.debug-float-btn--active{border:2px solid #667eea;background:#eef2ff}@media(min-width:768px){.sidebar{position:static;transform:translate(0);flex-shrink:0}.sidebar__mobile-header,.chat-header{display:none}.chat-area{border-radius:0}.chat-messages{padding:var(--space-8)}.chat-input-area{padding:var(--space-4) var(--space-8)}.message__text{font-size:var(--text-base)}}@media(min-width:1024px){.insight-panel{position:static;transform:translate(0);flex-shrink:0}.insight-panel__close-btn{display:none}}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;min-height:100dvh;padding:var(--space-4);background:var(--gradient-bg);position:relative;overflow:hidden}.login-page:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle at 30% 50%,rgba(245,158,11,.12) 0%,transparent 50%),radial-gradient(circle at 70% 80%,rgba(118,75,162,.15) 0%,transparent 40%);animation:bgShift 20s ease-in-out infinite}@keyframes bgShift{0%,to{transform:translate(0)}50%{transform:translate(2%,-2%)}}.login-card{position:relative;z-index:1;width:100%;max-width:400px;background:#fffffff2;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:var(--radius-2xl);padding:var(--space-10) var(--space-8);box-shadow:var(--shadow-xl),0 0 60px #00000014;text-align:center;animation:cardIn .5s ease-out}@keyframes cardIn{0%{opacity:0;transform:translateY(20px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.login-card__icon{width:64px;height:64px;margin:0 auto var(--space-6);border-radius:50%;background:var(--gradient-bg);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 30px #667eea4d;animation:pulse-glow 3s ease-in-out infinite}.login-card__icon 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var(--space-4)}.usage-limit{display:flex;flex-direction:column;gap:var(--space-2);width:100%}.usage-limit__counts{display:flex;align-items:baseline;gap:.25rem}.usage-limit__current{font-size:var(--text-2xl);font-weight:700;line-height:1.2;color:var(--color-text)}.usage-limit__separator,.usage-limit__max{font-size:var(--text-lg);color:var(--color-text-secondary)}.usage-limit__unit{font-size:var(--text-xs);color:var(--color-text-muted);margin-left:.25rem;align-self:flex-end;padding-bottom:.15rem}.usage-limit__bar{width:100%;height:6px;background:var(--color-bg);border-radius:var(--radius-full);overflow:hidden}.usage-limit__bar-fill{height:100%;background:var(--gradient-bg);border-radius:var(--radius-full);transition:width .6s cubic-bezier(.34,1.56,.64,1)}.usage-limit__bar-fill--warning{background:#f59e0b}.usage-limit__bar-fill--danger{background:#ef4444}.usage-limit__meta{display:flex;justify-content:space-between;align-items:center}.usage-limit__percent{font-size:var(--text-xs);color:var(--color-text-muted)}.usage-limit__reset{font-size:var(--text-xs);color:var(--color-text-secondary)}.usage-loading{display:flex;flex-direction:column;align-items:center;padding-top:60px}.usage-spinner{animation:usage-spin 1s linear infinite;color:var(--color-text-muted)}@keyframes usage-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.usage-loading__text{text-align:center;margin-top:var(--space-4);color:var(--color-text-muted);font-size:var(--text-sm)}.usage-error{background:#ef444414;border:1px solid rgba(239,68,68,.2);border-radius:var(--radius-lg);padding:var(--space-3) var(--space-4);font-size:var(--text-sm);color:#dc2626;text-align:center}@media(min-width:768px){.usage-content{padding:var(--space-8);padding-bottom:var(--space-12)}}