*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%}html{-webkit-text-size-adjust:100%;text-size-adjust:100%}body{font-family:Hiragino Kaku Gothic ProN,Hiragino Sans,Noto Sans JP,Meiryo,sans-serif;color:var(--ink-strong);background:var(--chat-bg);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}button{font-family:inherit;touch-action:manipulation}textarea,input{font-family:inherit}:root{--brand-accent: #7256d8;--brand-accent-deep: #6146c4;--brand-bg-top: #f3f1fb;--brand-bg-bottom: #e7e3f6;--ink-strong: #3e3854;--ink-muted: #6a6580;--surface: #fff;--surface-border: #e4dff4;--chat-bg: #faf9fd;--bubble-partner-bg: #edebf5;--bubble-partner-border: #dfdbec;--bubble-partner-text: #4b4760;--line-soft: #e5e1f0;--field-bg: #fff;--panel-bg: #fff;--card-shadow: 0 10px 24px rgba(96, 86, 160, .16);--header-btn-bg: rgba(62, 56, 84, .06);--header-btn-border: rgba(62, 56, 84, .28);--header-btn-hover: rgba(62, 56, 84, .12);--success-bg: #e8f5e8;--success-border: #c3e6c3;--success-text: #2d5016;--warn-bg: #fef5e7;--warn-border: #fad7a0;--warn-text: #b9770e;--danger-bg: #fdedec;--danger-border: #f5b7b1;--danger-text: #c0392b}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--brand-accent: #9179e8;--brand-accent-deep: #7f66dc;--brand-bg-top: #232033;--brand-bg-bottom: #191624;--ink-strong: #e9e6f2;--ink-muted: #a39dba;--surface: #262233;--surface-border: #3a3450;--chat-bg: #17141f;--bubble-partner-bg: #2c2839;--bubble-partner-border: #3a3450;--bubble-partner-text: #d9d5e6;--line-soft: #332e45;--field-bg: #1f1b2b;--panel-bg: #211d2e;--card-shadow: 0 10px 24px rgba(0, 0, 0, .4);--header-btn-bg: rgba(233, 230, 242, .07);--header-btn-border: rgba(233, 230, 242, .3);--header-btn-hover: rgba(233, 230, 242, .14);--success-bg: #1f2f21;--success-border: #35543a;--success-text: #a9d9ae;--warn-bg: #33291a;--warn-border: #5a4626;--warn-text: #e6b96e;--danger-bg: #392120;--danger-border: #63322e;--danger-text: #f0958b}}:root[data-theme=dark]{--brand-accent: #9179e8;--brand-accent-deep: #7f66dc;--brand-bg-top: #232033;--brand-bg-bottom: #191624;--ink-strong: #e9e6f2;--ink-muted: #a39dba;--surface: #262233;--surface-border: #3a3450;--chat-bg: #17141f;--bubble-partner-bg: #2c2839;--bubble-partner-border: #3a3450;--bubble-partner-text: #d9d5e6;--line-soft: #332e45;--field-bg: #1f1b2b;--panel-bg: #211d2e;--card-shadow: 0 10px 24px rgba(0, 0, 0, .4);--header-btn-bg: rgba(233, 230, 242, .07);--header-btn-border: rgba(233, 230, 242, .3);--header-btn-hover: rgba(233, 230, 242, .14);--success-bg: #1f2f21;--success-border: #35543a;--success-text: #a9d9ae;--warn-bg: #33291a;--warn-border: #5a4626;--warn-text: #e6b96e;--danger-bg: #392120;--danger-border: #63322e;--danger-text: #f0958b}.gradient-page{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;background:linear-gradient(180deg,var(--brand-bg-top) 0%,var(--brand-bg-bottom) 100%);color:var(--ink-strong)}.center-page{align-items:center;justify-content:center;padding:20px 16px;padding-top:calc(20px + env(safe-area-inset-top));padding-bottom:calc(20px + env(safe-area-inset-bottom));text-align:center}.spinner{border:4px solid rgba(114,86,216,.25);border-top-color:var(--brand-accent);border-radius:50%;animation:spin 1s linear infinite}.spinner-large{width:56px;height:56px;margin:0 auto 24px}.spinner-small{display:inline-block;width:16px;height:16px;border-width:2px;border-color:var(--warn-border);border-top-color:var(--warn-text);margin-right:8px;vertical-align:-3px}@keyframes spin{to{transform:rotate(360deg)}}.initializing-text{font-size:17px}.primary-btn{background:var(--brand-accent);color:#fff;border:none;border-radius:25px;padding:12px 32px;min-height:48px;font-size:16px;font-weight:600;cursor:pointer;transition:transform .15s ease,box-shadow .2s ease,background .2s ease}.outline-btn{background:transparent;color:var(--brand-accent);border:1px solid var(--brand-accent);border-radius:25px;padding:12px 24px;min-height:48px;font-size:16px;font-weight:600;cursor:pointer;transition:transform .15s ease,background .2s ease}.danger-btn{background:#e74c3c;color:#fff;border:none;border-radius:25px;padding:12px 24px;min-height:48px;font-size:16px;font-weight:600;cursor:pointer;transition:transform .15s ease,background .2s ease}.primary-btn:active:not(:disabled),.outline-btn:active:not(:disabled),.danger-btn:active:not(:disabled),.start-chat-btn:active:not(:disabled),.send-btn:active:not(:disabled),.leave-btn:active:not(:disabled){transform:scale(.97)}button:disabled{opacity:.6;cursor:not-allowed}@media(hover:hover)and (pointer:fine){.primary-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px #6146c44d}.outline-btn:hover:not(:disabled){background:#7256d814}.danger-btn:hover:not(:disabled){background:#c0392b}.start-chat-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px #6146c459}.leave-btn:hover:not(:disabled){background:var(--header-btn-hover)}.send-btn:hover:not(:disabled){background:var(--brand-accent-deep)}.modal .outline-btn:hover:not(:disabled){background:#7256d81a}}.page-toolbar{position:fixed;top:calc(10px + env(safe-area-inset-top));right:calc(12px + env(safe-area-inset-right));z-index:100}.theme-toggle{display:inline-flex;align-items:center;gap:6px;background:var(--header-btn-bg);border:1px solid var(--header-btn-border);color:var(--ink-strong);border-radius:999px;padding:6px 14px;min-height:36px;font-size:13px;cursor:pointer;transition:transform .15s ease,background .2s ease}.theme-toggle:active:not(:disabled){transform:scale(.97)}.theme-toggle-compact{padding:6px 9px;min-height:40px;flex-shrink:0}@media(hover:hover)and (pointer:fine){.theme-toggle:hover:not(:disabled){background:var(--header-btn-hover)}}.home-main{flex:1;display:flex;align-items:center;justify-content:center;padding:24px 16px;padding-top:calc(24px + env(safe-area-inset-top))}.home-card{width:100%;max-width:600px;background:var(--surface);border:2px solid var(--surface-border);border-radius:20px;padding:28px 20px;text-align:center;box-shadow:var(--card-shadow)}.app-title{font-size:26px;font-weight:700;margin-bottom:12px}.app-subtitle{font-size:16px;opacity:.9;margin-bottom:16px}.app-description{font-size:14px;opacity:.85;line-height:1.8;margin-bottom:28px}.start-chat-btn{width:100%;min-height:56px;background:var(--brand-accent);color:#fff;border:none;border-radius:28px;font-size:18px;font-weight:700;cursor:pointer;transition:transform .15s ease,box-shadow .2s ease;margin-bottom:28px;box-shadow:0 4px 14px #7256d859}.feature-list{list-style:none;text-align:left}.feature-item{display:flex;align-items:center;gap:12px;padding:6px 0;font-size:14px;color:var(--ink-muted)}.home-footer{padding:20px 16px;padding-bottom:calc(20px + env(safe-area-inset-bottom));text-align:center;font-size:13px;opacity:.7}@media(min-width:600px){.home-card{max-width:500px;padding:32px}.app-title{font-size:28px}.start-chat-btn{width:auto;min-width:300px;margin-left:auto;margin-right:auto;display:block;padding-left:32px;padding-right:32px}}@media(min-width:900px){.home-card{max-width:600px;padding:40px}.app-title{font-size:32px}.start-chat-btn{min-width:280px}}.matching-card{width:100%;max-width:480px;background:var(--surface);border:2px solid var(--surface-border);border-radius:20px;padding:28px 20px;box-shadow:var(--card-shadow)}.matching-title{font-size:22px;font-weight:700;margin-bottom:12px}.matching-description{font-size:15px;color:var(--ink-muted);line-height:1.6;margin-bottom:12px}.matching-elapsed{font-size:13px;color:var(--ink-muted);opacity:.8;margin-bottom:20px}.matching-note{font-size:13px;color:var(--ink-muted);line-height:1.6;margin-bottom:16px}.matching-card .outline-btn{width:100%;max-width:280px}.loading-dots{display:flex;justify-content:center;gap:8px;margin-bottom:32px}.dot{width:8px;height:8px;border-radius:50%;background:var(--brand-accent);animation:blink 1.2s ease-in-out infinite}.dot:nth-child(2){animation-delay:.2s}.dot:nth-child(3){animation-delay:.4s}@keyframes blink{0%,to{opacity:.3}50%{opacity:1}}@media(min-width:600px){.matching-card{padding:32px}.matching-title{font-size:24px}.matching-card .outline-btn{width:auto}}.error-card{width:100%;max-width:480px;background:var(--surface);border:2px solid var(--surface-border);border-radius:20px;padding:28px 20px;box-shadow:var(--card-shadow)}.error-icon{font-size:52px;margin-bottom:20px}.error-title{font-size:20px;font-weight:700;margin-bottom:12px}.error-message{font-size:15px;color:var(--ink-muted);line-height:1.6;margin-bottom:28px;white-space:pre-line}.error-actions{display:flex;flex-direction:column;align-items:stretch;gap:12px}@media(min-width:600px){.error-card{padding:32px}.error-actions{flex-direction:row;justify-content:center;align-items:center;flex-wrap:wrap;gap:16px}}.chat-page{height:100vh;height:100dvh;display:flex;flex-direction:column;background:var(--chat-bg)}.chat-header{background:linear-gradient(135deg,var(--brand-bg-top) 0%,var(--brand-bg-bottom) 100%);color:var(--ink-strong);border-bottom:1px solid var(--line-soft);padding:10px 12px;padding-top:calc(10px + env(safe-area-inset-top));padding-left:calc(12px + env(safe-area-inset-left));padding-right:calc(12px + env(safe-area-inset-right));box-shadow:0 2px 4px #0000001a}.chat-header-content{max-width:800px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:8px}.chat-title{font-size:16px;font-weight:700;white-space:nowrap}.chat-header-right{display:flex;align-items:center;gap:10px;min-width:0}.status-indicator{display:flex;align-items:center;gap:6px;font-size:12px;white-space:nowrap}.status-dot{width:8px;height:8px;border-radius:50%;background:#c7c2dc;flex-shrink:0}.status-active .status-dot{background:#4ade80;animation:pulse 2s infinite}.status-waiting .status-dot{background:#fbbf24;animation:pulse 2s infinite}.status-away .status-dot{background:#f97316;animation:pulse 2s infinite}.status-closed .status-dot{background:#ef4444}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.leave-btn{background:var(--header-btn-bg);border:1px solid var(--header-btn-border);color:var(--ink-strong);padding:8px 16px;min-height:40px;border-radius:10px;font-size:14px;cursor:pointer;transition:transform .15s ease,background .2s ease;flex-shrink:0}@media(min-width:600px){.chat-header{padding-bottom:12px;padding-top:calc(12px + env(safe-area-inset-top));padding-left:calc(16px + env(safe-area-inset-left));padding-right:calc(16px + env(safe-area-inset-right))}.chat-title{font-size:18px}.status-indicator{font-size:13px}}.banner{padding:10px 16px;text-align:center;font-size:13px;font-weight:500}.banner-waiting,.banner-inactive{background:var(--warn-bg);border-bottom:1px solid var(--warn-border);color:var(--warn-text)}.banner-offline{background:var(--danger-bg);border-bottom:1px solid var(--danger-border);color:var(--danger-text)}@media(min-width:600px){.banner{font-size:14px}}.chat-messages{flex:1;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;padding:12px;padding-left:calc(12px + env(safe-area-inset-left));padding-right:calc(12px + env(safe-area-inset-right));width:100%;max-width:800px;margin:0 auto}@media(min-width:600px){.chat-messages{padding:16px}}.system-message{text-align:center;background:var(--success-bg);border:1px solid var(--success-border);color:var(--success-text);padding:12px;border-radius:12px;margin-bottom:16px;font-size:14px;line-height:1.6}.load-more-row{display:flex;justify-content:center;margin-bottom:16px}.load-more-btn{background:var(--surface);border:1px solid var(--surface-border);color:var(--brand-accent);border-radius:999px;padding:8px 16px;font-size:13px;font-weight:600;cursor:pointer}.load-more-btn:active{transform:scale(.98)}.message-row{display:flex;margin-bottom:12px}.message-mine{justify-content:flex-end}.message-partner{justify-content:flex-start}.message-bubble{max-width:85%;padding:10px 14px;border-radius:18px;background:var(--bubble-partner-bg);border:1px solid var(--bubble-partner-border);color:var(--bubble-partner-text)}@media(min-width:600px){.message-bubble{max-width:70%}}.message-partner .message-bubble{border-bottom-left-radius:4px}.message-mine .message-bubble{background:var(--brand-accent);border-color:var(--brand-accent-deep);color:#fff;border-bottom-right-radius:4px}.typing-bubble{display:flex;align-items:center;gap:5px;padding:12px 16px;border-bottom-left-radius:4px}.typing-dot{width:7px;height:7px;border-radius:50%;background:var(--ink-muted);animation:blink 1.2s ease-in-out infinite}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}.message-text{line-height:1.4;word-break:break-word;white-space:pre-wrap;-webkit-user-select:text;user-select:text;margin-bottom:4px}.message-time{font-size:11px;opacity:.7}.chat-input-area{background:var(--panel-bg);border-top:1px solid var(--line-soft);padding:8px 12px;padding-bottom:calc(8px + env(safe-area-inset-bottom));padding-left:calc(12px + env(safe-area-inset-left));padding-right:calc(12px + env(safe-area-inset-right))}@media(min-width:600px){.chat-input-area{padding:12px 16px;padding-bottom:calc(12px + env(safe-area-inset-bottom))}}.send-error{max-width:800px;margin:0 auto 8px;color:var(--danger-text);font-size:13px}.chat-input-form{max-width:800px;margin:0 auto;display:flex;gap:8px;align-items:flex-end}.chat-input{flex:1;min-width:0;background:var(--field-bg);color:var(--ink-strong);border:2px solid var(--line-soft);border-radius:12px;padding:10px 14px;font-family:inherit;font-size:16px;line-height:1.4;resize:none;min-height:44px;max-height:120px}.chat-input:focus{outline:none;border-color:var(--brand-accent)}.send-btn{background:var(--brand-accent);color:#fff;border:none;border-radius:12px;padding:10px 20px;min-height:44px;font-size:15px;font-weight:600;cursor:pointer;min-width:72px;flex-shrink:0;transition:transform .15s ease,background .2s ease}.chat-input-footer{max-width:800px;margin:6px auto 0;display:flex;justify-content:space-between;font-size:12px;color:var(--ink-muted)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;padding:16px;padding-top:calc(16px + env(safe-area-inset-top));padding-bottom:calc(16px + env(safe-area-inset-bottom));z-index:1000}.modal{background:var(--panel-bg);border-radius:20px;padding:24px 20px;width:100%;max-width:420px;text-align:center;box-shadow:0 20px 40px #0003}.modal-icon{font-size:48px;margin-bottom:12px}.modal-title{font-size:19px;font-weight:700;color:var(--ink-strong);margin-bottom:12px}.modal-description{font-size:15px;color:var(--ink-muted);line-height:1.6;margin-bottom:24px}.modal-actions{display:flex;flex-direction:column-reverse;align-items:stretch;gap:12px}.modal .outline-btn{color:var(--brand-accent);border-color:var(--brand-accent)}.text-btn{display:block;width:100%;margin-top:16px;padding:8px;background:none;border:none;color:var(--brand-accent);font-size:14px;font-weight:600;cursor:pointer;text-decoration:underline}.text-btn:disabled{opacity:.5;cursor:default}@media(min-width:600px){.modal{padding:28px}.modal-title{font-size:20px}.modal-actions{flex-direction:row;justify-content:center;align-items:center;flex-wrap:wrap}}