/* Chef Ubaldo: tema della chat. La home continua a usare home.css. */
:root {
  color-scheme:light;
  --bg:#faf3e5; --panel:#eee4d3; --surface:#fffaf2; --raised:#f2e8d9;
  --line:#d9c5aa; --muted:#72594a; --text:#3b2117; --accent:#bb2015;
  --accent-hover:#9d1a10; --on-accent:#fffaf1; --user:#ecddc7;
  --active:#dfccb0; --active-line:#b99a74; --code:#eee3d2;
  --notice:#fff0d3; --notice-text:#694217; --error:#a52b20;
  --green:#466b38; --shade:#211b1766; --shadow:#3b211710;
  font-family:Arial,Helvetica,sans-serif;color:var(--text);background:var(--bg);font-synthesis:none;
}
:root[data-theme="dark"] {
  color-scheme:dark;
  --bg:#211b17; --panel:#2b231d; --surface:#342a23; --raised:#3b3028;
  --line:#584638; --muted:#c2ad98; --text:#f5ebdd; --accent:#ef9a78;
  --accent-hover:#ffb18d; --on-accent:#fffaf1; --user:#49372b;
  --active:#4b382a; --active-line:#ad7952; --code:#291f19;
  --notice:#493721; --notice-text:#f2d4a4; --error:#ffb5a5;
  --green:#b2c99c; --shade:#110c09b8; --shadow:#00000024;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg)}
button,input,textarea,select{font:inherit}
button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}
button{cursor:pointer;color:inherit}button:disabled{cursor:wait;opacity:.5}a{color:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
[hidden]{display:none!important}
.sidebar{position:fixed;inset:0 auto 0 0;width:290px;display:flex;flex-direction:column;padding:23px 21px 17px;background:var(--panel);border-right:1px solid var(--line);z-index:20}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:Georgia,'Times New Roman',serif;font-size:23px;font-weight:700;letter-spacing:-.7px}
.brand-logo{display:block;width:76px;height:auto;flex:none;filter:drop-shadow(0 2px 2px var(--shadow))}
.brand small{display:block;font:8px Arial,sans-serif;letter-spacing:.8px;color:var(--muted);margin-top:8px;line-height:1.6}
.brand:hover{color:var(--accent)}
.new-chat{margin-top:29px;padding:13px 15px;border:1px solid #a91b11;background:#bb2015;color:var(--on-accent);border-radius:10px;text-align:left;font-size:14px;font-weight:600}
.new-chat span{font-size:20px;margin-right:9px}.new-chat:hover{background:#9d1a10}
.history-heading{display:flex;align-items:center;justify-content:space-between;margin-top:26px;color:var(--muted);font-size:10px;letter-spacing:1px}
.icon-button{background:none;border:0;font-size:20px;padding:7px;color:var(--muted);border-radius:6px}
.icon-button:hover{background:var(--raised);color:var(--text)}
.search{margin:7px 0 17px;width:100%;background:var(--surface);border:1px solid var(--line);padding:10px;border-radius:7px;color:var(--text);font-size:12px}
.search::placeholder{color:var(--muted)}
.sessions{overflow:auto;flex:1;min-height:0;scrollbar-width:thin;scrollbar-color:var(--active-line) transparent}
.empty-history{font-size:13px;line-height:1.7;color:var(--muted);padding:10px 4px}
.session{display:block;width:100%;border:1px solid transparent;border-radius:8px;background:none;text-align:left;margin-bottom:5px;padding:12px;font-size:13px}
.session strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}
.session small{display:block;margin-top:5px;color:var(--muted);font-size:10px}
.session:hover{background:var(--raised)}.session.active{background:var(--active);border-color:var(--active-line)}
.sidebar-footer{padding-top:18px;border-top:1px solid var(--line)}
.mock-label{display:flex;align-items:center;gap:7px;font-size:11px;color:var(--muted);margin-bottom:19px}
.mock-label span{width:5px;height:5px;border-radius:50%;background:var(--accent)}
.account{display:flex;align-items:center;gap:10px;width:100%;padding:0;background:none;border:0;text-align:left}
.avatar{width:35px;height:35px;background:var(--active);color:var(--text);display:grid;place-items:center;border-radius:50%;font-size:14px;font-weight:700;flex-shrink:0}
.account-text{flex:1;min-width:0}.account-text strong{display:block;font-size:12px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.account-text small{display:block;font-size:10px;margin-top:5px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.credit{display:block;font-size:10px;color:var(--muted);text-decoration:none;margin-top:23px}.credit:hover{text-decoration:underline}
.logout{background:none;border:0;padding:12px 0 0;color:var(--muted);font-size:11px}
.main{margin-left:290px;height:100dvh;display:flex;flex-direction:column;min-width:0}
.topbar{display:flex;align-items:center;gap:15px;justify-content:space-between;padding:18px 30px;border-bottom:1px solid var(--line);min-height:83px;background:var(--bg);flex:none}
.conversation-heading{min-width:0;flex:1}.conversation-heading strong{display:block;font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:45vw}
.conversation-heading>span{display:flex;align-items:center;gap:6px;font-size:10px;color:var(--muted);margin-top:6px}
.conversation-heading i{height:5px;width:5px;border-radius:50%;background:var(--muted);flex:none}.conversation-heading .online i{background:var(--green)}
.topbar-actions{display:flex;align-items:center;justify-content:flex-end;gap:14px;flex:none}
.theme-control{display:flex;align-items:center;gap:7px;font-size:11px;color:var(--muted)}
.theme-control select{border:1px solid var(--line);border-radius:8px;padding:9px 24px 9px 10px;color:var(--text);background:var(--surface);font-size:12px;cursor:pointer;min-height:38px}
.login-button{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:10px 14px;font-size:12px;white-space:nowrap}.login-button:hover{background:var(--raised)}
.google-g{font-weight:800;font-family:Arial,sans-serif;color:#4285f4;margin-right:8px}
.menu,.mobile-brand{display:none}
.notice{padding:11px 30px;background:var(--notice);border-bottom:1px solid var(--line);color:var(--notice-text);font-size:12px;line-height:1.5;flex:none}
.scroll-area{overflow-y:auto;flex:1;min-height:0;scroll-behavior:smooth;scrollbar-width:thin;scrollbar-color:var(--active-line) transparent}
.welcome{max-width:860px;margin:0 auto;padding:66px 35px 35px}
.eyebrow{font-size:10px;letter-spacing:2px;color:var(--muted);font-weight:600}
.welcome h1{font-family:Georgia,'Times New Roman',serif;font-size:clamp(34px,3.5vw,49px);line-height:1.18;letter-spacing:-1.5px;font-weight:400;margin:17px 0 20px}
.welcome>p{font-size:14px;line-height:1.85;color:var(--muted)}
.suggestions{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:34px}
.suggestions button{position:relative;text-align:left;padding:20px;border-radius:11px;background:var(--surface);border:1px solid var(--line);transition:background .15s,border-color .15s}
.suggestions button:hover{background:var(--raised);border-color:var(--active-line)}
.suggestions button>span{font-size:21px;display:block;margin-bottom:13px}.suggestions strong{display:block;font-size:13px;font-weight:600}
.suggestions small{display:block;font-size:11px;color:var(--muted);line-height:1.6;margin-top:6px;padding-right:10px}
.suggestions b{position:absolute;right:16px;top:18px;color:var(--muted);font-weight:400}
.messages{max-width:920px;margin:0 auto;padding:16px 35px}
.message{margin:22px 0;display:flex;gap:13px;align-items:flex-start}
.message-label{width:31px;height:31px;display:grid;place-items:center;border-radius:10px;background:var(--raised);color:var(--accent);flex-shrink:0;font-size:22px}
.message.user{flex-direction:row-reverse}.message.user .message-label{background:var(--active);font-size:11px;color:var(--text)}
.message-body{min-width:0;max-width:100%;font-size:14px;line-height:1.85;overflow-wrap:anywhere}
.message.user .message-body{background:var(--user);border:1px solid var(--line);padding:12px 18px;border-radius:13px 3px 13px 13px;white-space:pre-wrap;max-width:85%}
.message.assistant .message-body{flex:1;padding:18px 21px;background:var(--surface);border:1px solid var(--line);border-radius:3px 13px 13px 13px}
.message-body p:first-child{margin-top:0}.message-body p{margin:0 0 15px}.message-body li{padding-left:3px;margin:5px 0}
.message-body ul,.message-body ol{padding-left:23px;margin:10px 0 20px}.message-body strong{color:var(--text);font-weight:700}
.message-body h1,.message-body h2,.message-body h3{font-family:Georgia,serif;font-size:20px;margin:27px 0 12px;line-height:1.4}
.message-body a{color:var(--accent);text-underline-offset:3px}
.message-body table{display:block;overflow-x:auto;border-collapse:collapse;margin:20px 0;width:100%;font-size:12px}
.message-body th,.message-body td{border:1px solid var(--line);padding:9px 12px;text-align:left}.message-body th{background:var(--raised)}
.message-body pre{overflow:auto;background:var(--code);border:1px solid var(--line);border-radius:8px;padding:15px;font-size:12px}
.message-body code{background:var(--code);border-radius:4px;padding:2px 5px;font-size:12px}.message-body pre code{background:none;padding:0}
.message-body blockquote{border-left:2px solid var(--accent);margin:18px 0;padding:5px 18px;color:var(--muted)}
.message-body hr{border:0;border-top:1px solid var(--line);margin:23px 0}.message.failed .message-body{color:var(--error)}
.copy-button{display:block;background:none;border:0;color:var(--muted);font-size:11px;padding:6px 0}.copy-button:hover{color:var(--accent)}
.working{max-width:850px;margin:0 auto 20px;width:calc(100% - 70px);display:flex;align-items:center;gap:12px;color:var(--muted);font-size:12px}
.mini-chef{color:var(--accent);font-size:25px}.dots{display:flex;gap:3px}.dots i{height:4px;width:4px;border-radius:50%;background:var(--muted);animation:pulse 1.2s infinite}
.dots i:nth-child(2){animation-delay:.2s}.dots i:nth-child(3){animation-delay:.4s}@keyframes pulse{0%,80%,100%{opacity:.2}40%{opacity:1}}
.composer-area{padding:17px 35px 20px;flex:none}
.composer{max-width:850px;margin:0 auto;display:flex;align-items:flex-end;padding:12px 12px 12px 20px;border:1px solid var(--active-line);border-radius:15px;background:var(--surface);box-shadow:0 8px 35px var(--shadow)}
.composer:focus-within{border-color:var(--accent)}
.composer textarea{resize:none;flex:1;min-width:0;border:0;background:none;color:var(--text);outline:none;padding:8px 10px 7px 0;max-height:180px;line-height:1.5;font-size:14px}
.composer textarea::placeholder{color:var(--muted)}
.send{width:40px;height:40px;border:0;border-radius:10px;background:#bb2015;color:var(--on-accent);font-size:25px;flex-shrink:0}.send:hover{background:#9d1a10}
.composer-meta{max-width:850px;margin:11px auto 0;display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:10px;line-height:1.5}
.login-dialog{max-width:440px;width:calc(100% - 32px);background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:19px;padding:35px;box-shadow:0 25px 120px #0005}
.login-dialog::backdrop{background:var(--shade);backdrop-filter:blur(5px)}
.dialog-close{position:absolute;right:12px;top:8px;font-size:27px}.login-dialog h2{font-family:Georgia,serif;font-size:28px;line-height:1.3;letter-spacing:-.6px;font-weight:400}
.login-dialog p{font-size:13px;line-height:1.8;color:var(--muted)}
.google-login{display:block;width:100%;padding:13px;border:1px solid #c7b8a2;border-radius:9px;background:#fffaf2;color:#3b2117;font-size:14px;margin-top:25px;font-weight:600}
.google-login:hover{background:#f2e8d9}.login-dialog .login-status{font-size:11px;margin-top:18px;color:var(--notice-text)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.shade{position:fixed;inset:0;background:var(--shade);z-index:19}
@media(min-width:1500px){.welcome{padding-top:90px}.suggestions{margin-top:45px}}
@media(max-width:1100px){.sidebar{width:250px;padding-inline:16px}.main{margin-left:250px}.keyboard-hint{display:none}.welcome{padding-top:38px}.welcome h1{font-size:37px}.brand{font-size:20px}.brand-logo{width:60px}.topbar{padding-inline:22px}.topbar-actions{gap:10px}.theme-control>span{display:none}}
@media(max-width:850px) and (min-width:721px){.topbar{flex-wrap:wrap}.conversation-heading{flex-basis:100%}.conversation-heading strong{max-width:100%}.topbar-actions{width:100%;justify-content:space-between}.suggestions{grid-template-columns:1fr}}
@media(max-width:720px){
 .sidebar{transform:translateX(-100%);transition:transform .2s;width:285px}.sidebar.open{transform:translateX(0)}.main{margin-left:0}
 .menu{display:block;padding:6px;flex:none}.mobile-brand{display:block;flex:none}.mobile-brand img{display:block;width:40px;height:auto}
 .topbar{padding:10px 12px;min-height:78px;gap:9px;flex-wrap:wrap}.conversation-heading{flex:1;min-width:0}.conversation-heading strong{max-width:none;font-size:12px}
 .topbar-actions{width:100%;padding-left:0;justify-content:space-between;gap:8px}.theme-control>span{display:inline}.theme-control select{padding:7px 22px 7px 9px;font-size:12px;min-height:35px}
 .login-button{padding:9px 11px;font-size:11px}.login-button .google-g{margin-right:5px}
 .welcome{padding:32px 22px 20px}.welcome h1{font-size:34px;letter-spacing:-1.2px}.welcome>p{font-size:13px}.desktop-break{display:none}
 .suggestions{gap:9px;margin-top:25px}.suggestions button{padding:15px}.suggestions strong{font-size:12px;line-height:1.5}.suggestions small{font-size:10px}
 .messages{padding:10px 12px}.message{gap:8px}.message-body{font-size:14px}.message-label{width:26px;height:28px;font-size:19px}
 .message.assistant .message-body{padding:14px}.message.user .message-body{max-width:88%;padding:11px 14px}
 .composer-area{padding:10px 14px max(12px,env(safe-area-inset-bottom))}.composer{padding:9px 9px 9px 13px}.composer textarea{font-size:16px}.composer-meta{font-size:9px}
 .notice{padding:10px 17px}.working{width:calc(100% - 36px)}.login-dialog{padding:28px}
}
@media(max-width:390px){.suggestions{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

.credit{line-height:1.6}.credit:hover{text-decoration:none}.credit p{margin:0}.credit p+p{margin-top:6px}.credit a{color:inherit;text-decoration:underline;text-underline-offset:3px}