:root{--ink:#142433;--muted:#66717b;--line:#dfe4e7;--paper:#fff;--accent:#9b6b24;--max:1120px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,"Helvetica Neue",sans-serif;line-height:1.55}a{color:inherit}button,textarea{font:inherit}a:focus-visible,button:focus-visible,textarea:focus-visible{outline:3px solid #c99952;outline-offset:4px}
.skip-link{position:absolute;top:-80px;left:16px;z-index:20;padding:10px 14px;background:var(--ink);color:#fff}.skip-link:focus{top:16px}.container{width:min(calc(100% - 48px),var(--max));margin-inline:auto}
.site-header{background:#fff}.header-inner{display:flex;min-height:76px;align-items:center;justify-content:space-between;gap:24px}.brand-logo{display:block;width:148px;height:auto}.menu-toggle{display:none;border:0;background:transparent;padding:10px;color:var(--ink)}.menu-toggle span,.menu-toggle span:before,.menu-toggle span:after{display:block;width:23px;height:2px;background:currentColor;content:""}.menu-toggle span:before{transform:translateY(-7px)}.menu-toggle span:after{transform:translateY(5px)}
.primary-nav{display:flex;align-items:center;gap:24px;font-size:.9rem}.primary-nav a{text-decoration:none}.primary-nav a:hover{text-decoration:underline;text-underline-offset:5px}.language-switcher{display:flex;gap:6px;color:var(--muted)}.language-switcher [aria-current]{color:var(--ink);font-weight:700}
.solution-space{display:grid;min-height:calc(100vh - 76px);align-items:center;padding:8vh 0 13vh}.solution-space-inner{width:min(100%,760px);margin-inline:auto}.solution-kicker{margin:0 0 34px;color:var(--accent);font-size:.76rem;font-weight:700;letter-spacing:.18em}.solution-space h1{max-width:720px;margin:0;font-size:clamp(2.45rem,5.3vw,4.75rem);font-weight:500;line-height:1.06;letter-spacing:-.05em}.solution-lede{max-width:650px;margin:22px 0 0;color:var(--muted);font-size:clamp(1.12rem,2.1vw,1.35rem);line-height:1.5}.solution-conversation{margin-top:48px}
.panel-conversation{display:none;max-height:330px;margin:0 0 26px;padding:0 4px 4px;overflow-x:hidden;overflow-y:auto;scrollbar-width:none}.panel-conversation::-webkit-scrollbar{display:none}.solution-conversation.has-messages .panel-conversation{display:grid;gap:18px}.risa-message,.risa-user-message{display:flex;max-width:92%;gap:12px;margin:0;white-space:pre-wrap}.risa-user-message{margin-left:auto;color:var(--muted)}.risa-message-icon{display:grid;flex:0 0 28px;width:28px;height:28px;place-items:center;border:1px solid var(--line);border-radius:50%;font-size:.7rem;font-weight:700}.risa-message-body{display:grid;gap:4px}.risa-message-body>strong{font-size:.7rem;letter-spacing:.12em}.risa-user-icon{display:none}
.risa-conversation-form{display:grid;grid-template-columns:1fr auto;align-items:end;border-bottom:1px solid #9ca4aa}.risa-conversation-form textarea{width:100%;min-height:108px;max-height:240px;resize:vertical;border:0;background:transparent;padding:22px 12px 20px 0;color:var(--ink);font-size:clamp(1.12rem,2.1vw,1.34rem);line-height:1.5}.risa-conversation-form textarea::placeholder{color:#92999f}.risa-conversation-form textarea:focus{outline:0}.risa-conversation-form:focus-within{border-color:var(--accent);box-shadow:0 1px 0 var(--accent)}.risa-conversation-form button{margin-bottom:16px;border:0;background:transparent;color:var(--ink);padding:8px 2px 8px 14px;font-size:.9rem;font-weight:700;cursor:pointer}.risa-conversation-form button:hover{text-decoration:underline;text-underline-offset:5px}.risa-conversation-form button:disabled{cursor:wait;opacity:.55}.risa-conversation-status{min-height:24px;margin:12px 0 0;color:#9b3d2b;font-size:.88rem}.solution-guidance{margin:7px 0 0;color:var(--muted);font-size:.9rem}.solution-boundary{max-width:620px;margin-top:34px;color:#92999f;font-size:.72rem}
.conversation-started .solution-space{min-height:calc(100vh - 76px);align-items:start;padding-top:9vh}.conversation-started .solution-space-inner{width:min(100%,860px)}.conversation-started .solution-opening{display:none}.conversation-started .solution-conversation{margin-top:0}.conversation-started .panel-conversation{max-height:52vh;margin-bottom:34px}.conversation-started .solution-guidance{display:none}.conversation-started .solution-boundary{margin-top:24px}
.site-footer{border-top:1px solid var(--line);padding:28px 0}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;color:var(--muted);font-size:.82rem}.footer-inner p{margin:0}.footer-links{display:flex;gap:20px}.footer-links a{text-decoration:none}.footer-links a:hover{text-decoration:underline}.is-pending{opacity:.65}.risa-thinking-dots{display:inline-flex;gap:3px;margin-left:6px}.risa-thinking-dots i{width:4px;height:4px;border-radius:50%;background:currentColor}
@media(max-width:800px){.container{width:min(calc(100% - 32px),var(--max))}.header-inner{min-height:68px}.menu-toggle{display:block}.primary-nav{position:absolute;top:68px;right:16px;left:16px;z-index:10;display:none;align-items:stretch;flex-direction:column;gap:0;padding:14px;border:1px solid var(--line);background:#fff;box-shadow:0 12px 30px rgba(20,36,51,.08)}.primary-nav.is-open{display:flex}.primary-nav>a{padding:10px}.language-switcher{padding:10px}.solution-space{min-height:calc(100vh - 68px);padding:10vh 0}.solution-kicker{margin-bottom:26px}.solution-space h1{font-size:clamp(2.35rem,11vw,3.65rem)}.solution-lede br{display:none}.solution-conversation{margin-top:36px}.risa-conversation-form{grid-template-columns:1fr}.risa-conversation-form textarea{min-height:100px}.risa-conversation-form button{justify-self:start;margin:0 0 12px;padding-left:0}.conversation-started .solution-space{min-height:calc(100vh - 68px);padding-top:7vh}.conversation-started .panel-conversation{max-height:48vh}.footer-inner{align-items:flex-start;flex-direction:column}.footer-links{flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}