:root{--ract-ink:#0e1f1c;--ract-brand:#125e57;--ract-brand-deep:#0a3d38;--ract-mist:#e8f2ef;--ract-fog:#f4f8f6;--ract-gold:#b8963e;--ract-muted:#4d665f;--ract-line:rgba(18,94,87,0.18)}*{box-sizing:border-box}body,html{margin:0;padding:0;min-height:100%}body{font-family:var(--font-body),"Hiragino Sans",Meiryo,sans-serif;line-height:1.6;color:var(--ract-ink);background:var(--ract-fog)}a{color:inherit}.login-screen{position:relative;min-height:100vh;overflow:hidden;display:flex;flex-direction:column;justify-content:center;gap:2.5rem;padding:clamp(1.5rem,4vw,3.5rem)}.login-atmosphere{position:absolute;inset:0;background:radial-gradient(120% 80% at 10% 0,rgba(18,94,87,.22),transparent 55%),radial-gradient(90% 70% at 100% 100%,rgba(184,150,62,.16),transparent 50%),linear-gradient(160deg,#f7fbfa,#e7f1ee 45%,#d9ebe6);animation:login-glow 12s ease-in-out infinite alternate;pointer-events:none;z-index:0}.login-atmosphere:after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(-18deg,transparent,transparent 14px,rgba(14,31,28,.02) 0,rgba(14,31,28,.02) 15px);opacity:.7}.login-hero,.login-notices{position:relative;z-index:1;max-width:36rem}.login-hero{animation:login-rise .9s ease-out both}.login-mark{width:3rem;height:3rem;margin:0 0 1.25rem;display:grid;place-items:center;border-radius:.75rem;background:linear-gradient(145deg,var(--ract-brand) 0,var(--ract-brand-deep) 100%);color:#f7fbfa;font-size:1.4rem;letter-spacing:.04em;box-shadow:0 12px 28px rgba(10,61,56,.22);animation:login-mark-in 1.1s ease-out both}.login-brand,.login-mark{font-family:var(--font-display),"Hiragino Mincho ProN",serif;font-weight:600}.login-brand{margin:0;font-size:clamp(3rem,8vw,4.75rem);letter-spacing:.06em;line-height:1.05;color:var(--ract-brand-deep)}.login-tagline{margin:.85rem 0 0;font-size:1.05rem;color:var(--ract-muted);letter-spacing:.02em}.login-cta{display:inline-flex;align-items:center;justify-content:center;margin-top:2rem;padding:.95rem 1.6rem;border:none;border-radius:.55rem;background:var(--ract-brand);color:#f7fbfa;text-decoration:none;font-family:inherit;font-weight:600;font-size:1rem;letter-spacing:.02em;cursor:pointer;transition:transform .25s ease,background-color .25s ease,box-shadow .25s ease;box-shadow:0 10px 24px rgba(18,94,87,.28)}.login-cta:focus-visible,.login-cta:hover{background:var(--ract-brand-deep);transform:translateY(-2px);outline:none}.login-cta:focus-visible{box-shadow:0 0 0 3px rgba(247,251,250,.95),0 0 0 6px rgba(18,94,87,.55)}.login-cta-note{margin:.75rem 0 0;font-size:.9rem;color:var(--ract-muted)}.login-notices{display:grid;grid-gap:1.1rem;gap:1.1rem;padding-top:.5rem;border-top:1px solid var(--ract-line);animation:login-rise 1.05s ease-out .15s both}.login-notices h2{margin:0 0 .35rem;font-size:.95rem;font-weight:600;color:var(--ract-brand-deep)}.login-notices p{margin:0;font-size:.92rem;color:var(--ract-muted)}@media (min-width:900px){.login-screen{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);align-items:center;grid-gap:4rem;gap:4rem;padding-inline:clamp(2rem,8vw,7rem)}.login-notices{border-top:none;border-left:1px solid var(--ract-line);padding-top:0;padding-left:2.5rem}}@keyframes login-glow{0%{filter:saturate(1) brightness(1);transform:scale(1)}to{filter:saturate(1.08) brightness(1.03);transform:scale(1.02)}}@keyframes login-rise{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}@keyframes login-mark-in{0%{opacity:0;transform:scale(.86)}to{opacity:1;transform:scale(1)}}.forbidden-screen{position:relative;min-height:100vh;display:grid;place-items:center;padding:2rem;overflow:hidden}.forbidden-atmosphere{position:absolute;inset:0;background:radial-gradient(80% 60% at 50% 0,rgba(18,94,87,.14),transparent 60%),linear-gradient(180deg,#f4f8f6,#e8f0ed);z-index:0}.forbidden-panel{position:relative;z-index:1;max-width:28rem;text-align:center;animation:login-rise .7s ease-out both}.forbidden-brand{margin:0 0 1rem;font-size:1.1rem;letter-spacing:.12em;color:var(--ract-brand)}.forbidden-brand,.forbidden-panel h1{font-family:var(--font-display),"Hiragino Mincho ProN",serif}.forbidden-panel h1{margin:0 0 .75rem;font-size:clamp(1.75rem,4vw,2.25rem);color:var(--ract-brand-deep)}.forbidden-panel>p{margin:0;color:var(--ract-muted)}.forbidden-actions{display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center;margin-top:1.75rem}.forbidden-link{display:inline-flex;align-items:center;justify-content:center;padding:.7rem 1.15rem;border-radius:.5rem;text-decoration:none;font-weight:600;font-size:.95rem;background:var(--ract-brand);color:#f7fbfa}.conv-list-screen{position:relative;min-height:100vh;padding:clamp(1.25rem,3vw,2.5rem);overflow:hidden}.conv-atmosphere{position:absolute;inset:0;background:radial-gradient(100% 70% at 0 0,rgba(18,94,87,.12),transparent 55%),radial-gradient(80% 60% at 100% 100%,rgba(184,150,62,.1),transparent 50%),linear-gradient(165deg,#f7fbfa,#eef5f2 55%,#e4efe9);pointer-events:none;z-index:0;animation:login-glow 14s ease-in-out infinite alternate}.conv-create,.conv-filters,.conv-list-header,.conv-table-section{position:relative;z-index:1}.conv-list-header{margin-bottom:1.75rem;animation:login-rise .7s ease-out both}.conv-brand{margin:0 0 .35rem;font-family:var(--font-display),"Hiragino Mincho ProN",serif;font-size:clamp(1.75rem,4vw,2.35rem);font-weight:600;letter-spacing:.08em;color:var(--ract-brand-deep)}.conv-list-header h1{margin:0;font-size:1.05rem;font-weight:500;color:var(--ract-muted);letter-spacing:.02em}.conv-create{margin-bottom:1.5rem;padding-bottom:1.5rem;border-bottom:1px solid var(--ract-line);animation:login-rise .8s ease-out .05s both}.conv-create h2{margin:0 0 .85rem;font-size:1rem;color:var(--ract-brand-deep)}.conv-create-form{display:flex;flex-wrap:wrap;gap:.85rem 1rem;align-items:end}.conv-create-form label{display:grid;grid-gap:.35rem;gap:.35rem;font-size:.85rem;color:var(--ract-muted)}.conv-create-form input,.conv-create-form select,.conv-rename-form input{min-width:12rem;padding:.55rem .7rem;border:1px solid var(--ract-line);border-radius:.4rem;background:rgba(247,251,250,.9);color:var(--ract-ink);font:inherit}.conv-primary{padding:.65rem 1.2rem;border:none;border-radius:.45rem;background:var(--ract-brand);color:#f7fbfa;font-weight:600;cursor:pointer}.conv-primary:focus-visible,.conv-primary:hover{background:var(--ract-brand-deep);outline:none}.conv-filters{display:grid;grid-gap:.75rem;gap:.75rem;margin-bottom:1.25rem;animation:login-rise .85s ease-out .1s both}.conv-filter-group{display:flex;flex-wrap:wrap;gap:.5rem .75rem;align-items:center;font-size:.9rem}.conv-filter-group>span{color:var(--ract-muted);min-width:2.5rem}.conv-filter-group a{text-decoration:none;padding:.25rem .55rem;border-radius:.35rem;color:var(--ract-brand-deep)}.conv-filter-group a.is-active{background:rgba(18,94,87,.12);font-weight:600}.conv-table-section{animation:login-rise .9s ease-out .15s both}.conv-empty{margin:0;color:var(--ract-muted)}.conv-table-wrap{overflow-x:auto}.conv-table{width:100%;border-collapse:collapse;font-size:.92rem}.conv-table td,.conv-table th{padding:.7rem .65rem;text-align:left;border-bottom:1px solid var(--ract-line);vertical-align:top}.conv-table th{font-weight:600;color:var(--ract-brand-deep);white-space:nowrap}.conv-actions{display:flex;flex-wrap:wrap;gap:.45rem;align-items:center}.conv-action,.conv-action-danger,.conv-action-muted{display:inline-flex;align-items:center;padding:.3rem .55rem;border:1px solid var(--ract-line);border-radius:.35rem;background:transparent;text-decoration:none;font:inherit;font-size:.85rem;cursor:pointer;color:var(--ract-brand-deep)}.conv-action-danger{color:#8a2f2f;border-color:rgba(138,47,47,.28)}.conv-action-muted{color:var(--ract-muted)}.conv-inline-form,.conv-rename-form{display:inline-flex;flex-wrap:wrap;gap:.35rem;align-items:center}.conv-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media (max-width:720px){.conv-create-form input,.conv-create-form select{min-width:100%}}.conv-detail-screen{position:relative;min-height:100vh;display:grid;grid-template-rows:auto auto 1fr auto auto;grid-gap:1rem;gap:1rem;padding:clamp(1rem,3vw,2rem);overflow:hidden}.conv-composer,.conv-detail-header,.conv-error,.conv-learning-panel,.conv-messages{position:relative;z-index:1}.conv-detail-header{display:grid;grid-gap:.75rem;gap:.75rem;animation:login-rise .7s ease-out both}.conv-back{width:-moz-fit-content;width:fit-content;color:var(--ract-brand);text-decoration:none;font-weight:600;font-size:.92rem}.conv-detail-title{margin:0;font-family:var(--font-display),"Hiragino Mincho ProN",serif;font-size:clamp(1.5rem,3.5vw,2rem);color:var(--ract-brand-deep)}.conv-detail-toolbar{display:flex;flex-wrap:wrap;gap:.75rem;align-items:end}.conv-mode-select{display:grid;grid-gap:.3rem;gap:.3rem;font-size:.85rem;color:var(--ract-muted)}.conv-mode-select select{min-width:12rem;padding:.5rem .65rem;border:1px solid var(--ract-line);border-radius:.4rem;background:rgba(247,251,250,.95);font:inherit;color:var(--ract-ink)}.conv-learning-panel{padding:.85rem 0;border-top:1px solid var(--ract-line);border-bottom:1px solid var(--ract-line);font-size:.92rem;color:var(--ract-muted)}.conv-learning-panel h2{margin:0 0 .4rem;font-size:.95rem;color:var(--ract-brand-deep)}.conv-learning-panel p{margin:.15rem 0}.conv-messages{min-height:12rem;overflow-y:auto;padding-right:.25rem}.conv-message-list{list-style:none;margin:0;padding:0;display:grid;grid-gap:.85rem;gap:.85rem}.conv-message{display:grid;grid-gap:.35rem;gap:.35rem;max-width:min(42rem,100%)}.conv-message-user{justify-self:end;text-align:right}.conv-message-assistant{justify-self:start}.conv-message-role{font-size:.75rem;font-weight:600;letter-spacing:.04em;color:var(--ract-brand)}.conv-message-sent-at{font-size:.75rem;color:var(--ract-muted,#5a6b68)}.conv-message-body,.conv-message-running{margin:0;padding:.75rem .9rem;border-radius:.55rem;white-space:pre-wrap;word-break:break-word;background:rgba(247,251,250,.92);border:1px solid var(--ract-line)}.conv-message-user .conv-message-body{background:rgba(18,94,87,.1);border-color:rgba(18,94,87,.2)}.conv-message-streaming .conv-message-body{border-style:dashed}.conv-message-running{color:var(--ract-muted);font-style:italic}.conv-error{display:grid;grid-gap:.5rem;gap:.5rem;align-items:start;justify-items:start;padding:.75rem 0;color:#8a2f2f}.conv-request-id{margin:0;font-size:.85rem;color:var(--ract-muted)}.conv-composer{display:grid;grid-gap:.65rem;gap:.65rem;padding-top:.5rem;border-top:1px solid var(--ract-line);animation:login-rise .85s ease-out .1s both}.conv-composer textarea{width:100%;resize:vertical;min-height:6rem;padding:.75rem .85rem;border:1px solid var(--ract-line);border-radius:.45rem;background:rgba(247,251,250,.95);font:inherit;color:var(--ract-ink)}.conv-composer textarea:disabled{opacity:.65;cursor:not-allowed}.conv-ended-notice{margin:0;color:var(--ract-muted);font-size:.92rem}.conv-dialog-backdrop{position:fixed;inset:0;z-index:20;display:grid;place-items:center;padding:1rem;background:rgba(14,31,28,.35)}.conv-dialog{width:min(26rem,100%);padding:1.25rem 1.35rem;border-radius:.6rem;background:#f7fbfa;border:1px solid var(--ract-line);box-shadow:0 16px 40px rgba(10,61,56,.18)}.conv-dialog h2{margin:0 0 .65rem;font-family:var(--font-display),"Hiragino Mincho ProN",serif;font-size:1.2rem;color:var(--ract-brand-deep)}.conv-dialog p{margin:0 0 .55rem;color:var(--ract-muted);font-size:.95rem}.conv-dialog-mode{font-weight:600;color:var(--ract-ink)!important}.conv-dialog-actions{display:flex;justify-content:flex-end;gap:.55rem;margin-top:1rem}.conv-list-header-row{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:.75rem 1.25rem}.conv-nav-link{color:var(--ract-brand);text-decoration:none;font-weight:600;font-size:.92rem}.conv-nav-link:focus-visible,.conv-nav-link:hover{text-decoration:underline;outline:none}.profile-screen{position:relative;min-height:100vh;padding:clamp(1.25rem,3vw,2.5rem);overflow:hidden}.profile-fields,.profile-header{position:relative;z-index:1;max-width:32rem}.profile-header{margin-bottom:1.75rem;display:grid;grid-gap:.5rem;gap:.5rem;animation:login-rise .7s ease-out both}.profile-brand{margin:0;font-family:var(--font-display),"Hiragino Mincho ProN",serif;font-size:clamp(1.75rem,4vw,2.35rem);font-weight:600;letter-spacing:.08em;color:var(--ract-brand-deep)}.profile-header h1{margin:0;font-size:1.05rem;font-weight:500;color:var(--ract-muted)}.profile-fields{animation:login-rise .85s ease-out .08s both}.profile-fields dl{margin:0;display:grid;grid-gap:1rem;gap:1rem}.profile-fields dl>div{display:grid;grid-gap:.25rem;gap:.25rem;padding-bottom:.85rem;border-bottom:1px solid var(--ract-line)}.profile-fields dt{font-size:.85rem;color:var(--ract-muted)}.profile-fields dd{margin:0;font-size:1.05rem;color:var(--ract-ink);word-break:break-word}.profile-org-code{margin-left:.35rem}.profile-org-code,.profile-readonly{font-size:.9rem;color:var(--ract-muted)}.profile-readonly{margin:1.25rem 0 0}.profile-nav{margin-top:.75rem}.conv-header-nav,.profile-nav{display:flex;flex-wrap:wrap;gap:.85rem}.conv-header-nav{align-items:center}.admin-screen{position:relative;min-height:100vh;padding:clamp(1.25rem,3vw,2.5rem);overflow:hidden}.admin-atmosphere{position:absolute;inset:0;background:radial-gradient(100% 70% at 0 0,rgba(18,94,87,.12),transparent 55%),radial-gradient(80% 60% at 100% 100%,rgba(184,150,62,.1),transparent 50%),linear-gradient(165deg,#f7fbfa,#eef5f2 55%,#e4efe9);pointer-events:none;z-index:0;animation:login-glow 14s ease-in-out infinite alternate}.admin-body,.admin-header{position:relative;z-index:1}.admin-header{margin-bottom:1.5rem;animation:login-rise .7s ease-out both}.admin-header-row{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:.75rem}.admin-brand{margin:0;font-family:var(--font-display),"Hiragino Mincho ProN",serif;font-size:clamp(1.75rem,4vw,2.35rem);font-weight:600;letter-spacing:.08em;color:var(--ract-brand-deep)}.admin-section-label{margin:.75rem 0 .2rem;font-size:.8rem;letter-spacing:.12em;color:var(--ract-muted)}.admin-header h1{margin:0 0 .85rem;font-size:1.15rem;font-weight:500;color:var(--ract-brand-deep)}.admin-nav-link{color:var(--ract-brand-deep);text-decoration:none;font-size:.9rem;font-weight:600}.admin-nav-link:focus-visible,.admin-nav-link:hover{text-decoration:underline}.admin-nav{display:flex;flex-wrap:wrap;gap:.5rem .85rem;margin-bottom:.75rem}.admin-nav-item{color:var(--ract-muted);text-decoration:none;font-size:.9rem;padding-bottom:.15rem;border-bottom:2px solid transparent}.admin-nav-item.is-active{color:var(--ract-brand-deep);font-weight:600;border-bottom-color:var(--ract-brand)}.admin-privacy-notice{margin:0;font-size:.85rem;color:var(--ract-muted)}.admin-stats{margin-bottom:1.5rem;animation:login-rise .8s ease-out .05s both}.admin-stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(9.5rem,1fr));grid-gap:.85rem 1.25rem;gap:.85rem 1.25rem;margin:0}.admin-stat-grid>div{padding:.65rem 0;border-bottom:1px solid var(--ract-line)}.admin-stat-grid dt{margin:0 0 .25rem;font-size:.8rem;color:var(--ract-muted)}.admin-stat-grid dd{margin:0;font-size:1.35rem;font-weight:600;color:var(--ract-brand-deep)}.admin-table-section{margin-bottom:1.75rem;animation:login-rise .85s ease-out .08s both}.admin-table-section h2{margin:0 0 .65rem;font-size:1rem;color:var(--ract-brand-deep)}.admin-empty{margin:0;color:var(--ract-muted)}.admin-table-wrap{overflow-x:auto}.admin-table{width:100%;border-collapse:collapse;font-size:.9rem}.admin-table td,.admin-table th{text-align:left;padding:.55rem .65rem;border-bottom:1px solid var(--ract-line);vertical-align:top}.admin-table th{color:var(--ract-muted);font-weight:600;white-space:nowrap}.admin-inline-form{display:inline;margin:0}.admin-action{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--ract-line);background:transparent;color:var(--ract-brand-deep);font:inherit;font-size:.85rem;font-weight:600;padding:.3rem .65rem;border-radius:.4rem;cursor:pointer}.admin-action:focus-visible,.admin-action:hover{border-color:var(--ract-brand);background:rgba(18,94,87,.06)}@media (max-width:720px){.admin-table td,.admin-table th{padding:.45rem .4rem}}