:root{color-scheme:dark;--bg:#0b1020;--surface:#151c31;--surface-2:#0d1426;--text:#f7f8ff;--muted:#a6afc2;--accent:#69e0b1;--accent-2:#5e9fe8;--border:#34405b;--danger:#ff707d;--shadow:0 18px 60px #0007;--radius:12px;--font:Arial,sans-serif;--display:Arial,sans-serif}*{box-sizing:border-box}html,body{min-height:100%}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 var(--font);overflow-x:hidden}button,input,select{font:inherit}button,input,select{min-height:44px;border:2px solid var(--border);border-radius:var(--radius)}button{cursor:pointer}.shell{position:relative;z-index:1;width:min(980px,calc(100% - 32px));margin:0 auto;padding:24px 0 48px}.network-bar{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:16px;padding:10px 14px;border:1px solid var(--border);background:var(--surface-2);font:13px/1.3 var(--display);letter-spacing:.08em}.network-meta{display:flex;gap:18px;color:var(--muted)}.status-dot{display:inline-block;width:9px;height:9px;margin-right:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent)}.panel{position:relative;padding:clamp(22px,5vw,42px);border:2px solid var(--border);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow)}.hidden{display:none!important}.window-title,.eyebrow{margin:0 0 12px;color:var(--accent);font:700 13px/1.2 var(--display);letter-spacing:.12em}.window-title{position:absolute;top:-12px;left:20px;padding:3px 10px;background:var(--surface);border:2px solid var(--border)}h1{max-width:760px;margin:4px 0 10px;font:800 clamp(30px,6vw,52px)/1.03 var(--display);letter-spacing:-.025em}.lead{max-width:680px;margin:0 0 24px;color:var(--muted)}label{display:grid;gap:7px;margin:16px 0;color:var(--muted);font-size:13px;font-weight:700;letter-spacing:.05em}input,select{width:100%;padding:11px 13px;background:var(--surface-2);color:var(--text)}input::placeholder{color:color-mix(in srgb,var(--muted) 75%,transparent)}input:focus-visible,select:focus-visible,button:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.primary,.secondary,.cat-button{padding:11px 17px;font-weight:800;letter-spacing:.035em}.primary{background:var(--accent);border-color:var(--accent);color:#06120e}.secondary{background:transparent;color:var(--text)}.theme-picker{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:22px 0 8px;padding:14px;border:1px solid var(--border)}.theme-picker legend{padding:0 8px;color:var(--muted);font:700 12px var(--display);letter-spacing:.08em}.theme-picker label{position:relative;display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;align-items:center;column-gap:9px;margin:0;padding:12px;border:1px solid var(--border);cursor:pointer}.theme-picker input{grid-row:1/3;width:18px;min-height:18px;margin:0;accent-color:var(--accent)}.theme-picker small{color:var(--muted);font-weight:400;letter-spacing:0}.theme-picker label:has(input:checked){border-color:var(--accent);background:color-mix(in srgb,var(--accent) 10%,transparent)}.field-error{min-height:24px;margin:4px 0;color:var(--danger);font-weight:700}.access-row{margin-top:26px;padding-top:20px;border-top:1px solid var(--border)}.access-row>label{margin:0 0 8px}.access-row>div{display:grid;grid-template-columns:1fr auto;gap:10px}.privacy-list{display:flex;flex-wrap:wrap;gap:10px 24px;margin:24px 0 0;padding:0;color:var(--muted);font-size:13px;list-style:none}.privacy-list li::before{content:'✓';margin-right:7px;color:var(--accent)}.prompt{margin:0 0 28px;color:var(--muted);font-family:var(--display)}.prompt span{color:var(--accent)}.cursor{display:inline-block;width:9px;height:17px;margin-left:4px;background:var(--accent);vertical-align:-3px;animation:blink 1.1s steps(1) infinite}.chat-head{display:flex;align-items:center;justify-content:space-between;gap:18px}.chat-head strong{font:800 clamp(20px,4vw,30px) var(--display);letter-spacing:.04em}.room-status{display:flex;flex-wrap:wrap;gap:10px 22px;margin:18px 0;padding:10px 13px;border:1px solid var(--border);background:var(--surface-2);color:var(--muted);font:700 12px var(--display);letter-spacing:.04em}.messages{height:min(55vh,560px);min-height:320px;overflow:auto;padding:16px;background:var(--surface-2);border:2px solid var(--border);scrollbar-color:var(--accent) var(--surface-2)}.message{width:min(78%,590px);margin:10px 0;padding:11px 13px;border:2px solid var(--border);background:var(--surface)}.message.own{margin-left:auto;border-color:var(--accent-2)}.message strong{display:block;margin-bottom:4px;color:var(--accent);font:800 12px var(--display);letter-spacing:.06em}.message p{margin:0;white-space:pre-wrap;overflow-wrap:anywhere}.system{text-align:center;color:var(--muted);font-size:13px}.cat-message{width:max-content;max-width:78%}.cat-art{display:block;width:25px;height:25px;margin:4px 0 0;overflow:visible}.cat-tail{transform-origin:19px 16px;animation:tail 1.4s ease-in-out infinite alternate}.cat-eye{transform-origin:center;animation:eyes 4s steps(1) infinite}#composer{display:grid;grid-template-columns:1fr auto auto;gap:10px;margin-top:12px}.cat-button{display:flex;align-items:center;gap:7px;background:var(--surface);color:var(--text);border-color:var(--accent-2)}.cat-icon{font-family:monospace;color:var(--accent)}.terminal-state{min-height:420px;display:grid;align-content:center}.ambient{position:fixed;inset:0;pointer-events:none;overflow:hidden}.ambient span{position:absolute;display:block;opacity:.45}.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}
/* Home Hacker Terminal */
body[data-screen=home]{--bg:#020503;--surface:#050a06;--surface-2:#020503;--text:#d8ffe1;--muted:#51a967;--accent:#39ff6a;--accent-2:#1cbf4b;--border:#168a3a;--danger:#ff4f4f;--shadow:0 0 36px #0b7f2c24;--radius:0;--font:'Courier New',monospace;--display:'Courier New',monospace;background-image:linear-gradient(#39ff6a08 1px,transparent 1px);background-size:100% 4px}body[data-screen=home] .panel{box-shadow:inset 0 0 40px #0c3d181f,0 0 30px #16aa3820}body[data-screen=home] h1{text-transform:uppercase;font-size:clamp(28px,5vw,46px);letter-spacing:-.04em}body[data-screen=home] .network-bar{box-shadow:0 0 20px #39ff6a19}body[data-screen=home] .primary{color:#001c08}body[data-screen=home] .ambient span:first-child{inset:8% auto auto 3%;width:210px;height:100px;border:1px solid #168a3a;background:repeating-linear-gradient(0deg,#39ff6a12 0 1px,transparent 1px 7px)}
/* Lo-fi Pixel */
html[data-theme=lofi]{--bg:#432d43;--surface:#f7b6bc;--surface-2:#6f455f;--text:#301e31;--muted:#704658;--accent:#ff765f;--accent-2:#ffd09e;--border:#301e31;--danger:#a62c45;--shadow:10px 10px 0 #301e31;--radius:0;--font:Arial,sans-serif;--display:'Courier New',monospace}html[data-theme=lofi] body{background:linear-gradient(160deg,#5c3c59 0,#9a5966 55%,#f19b83 100%)}html[data-theme=lofi] .panel{background:#f7b6bc}html[data-theme=lofi] .window-title{background:#ffd09e}html[data-theme=lofi] input,html[data-theme=lofi] select,html[data-theme=lofi] .messages,html[data-theme=lofi] .room-status,html[data-theme=lofi] .network-bar{background:#fff0dc;color:#301e31}html[data-theme=lofi] .message{background:#ffd8c7;box-shadow:4px 4px 0 #301e31}html[data-theme=lofi] .message.own{background:#ffc192}html[data-theme=lofi] .primary{color:#301e31}html[data-theme=lofi] .secondary,html[data-theme=lofi] .cat-button{color:#301e31;background:#fff0dc}html[data-theme=lofi] .ambient span:first-child{right:4%;top:8%;width:120px;height:36px;background:#ffd9cf;box-shadow:-34px 16px 0 #ffd9cf,42px 20px 0 #ffd9cf}
/* Arcade */
html[data-theme=arcade]{--bg:#070b1e;--surface:#101638;--surface-2:#070b1e;--text:#f7fbff;--muted:#8bdbe3;--accent:#00f5ff;--accent-2:#ff2bd6;--border:#00bfc9;--danger:#ff5c73;--shadow:8px 8px 0 #ff2bd6,0 0 30px #00f5ff20;--radius:4px;--font:'Courier New',monospace;--display:'Courier New',monospace}html[data-theme=arcade] body{background:radial-gradient(circle at 50% 0,#151f55 0,#070b1e 58%);text-shadow:0 0 8px #00f5ff33}html[data-theme=arcade] body::after{content:'';position:fixed;inset:0;pointer-events:none;background:repeating-linear-gradient(0deg,#0000 0 3px,#0004 3px 4px);opacity:.4}html[data-theme=arcade] .panel{clip-path:polygon(10px 0,calc(100% - 10px) 0,100% 10px,100% calc(100% - 10px),calc(100% - 10px) 100%,10px 100%,0 calc(100% - 10px),0 10px)}html[data-theme=arcade] .primary{background:#ff2bd6;border-color:#ffe14d;color:#070b1e;box-shadow:3px 3px 0 #00f5ff}html[data-theme=arcade] .secondary,html[data-theme=arcade] .cat-button{color:#00f5ff;background:#0b1231;border-color:#ff2bd6}html[data-theme=arcade] .message{box-shadow:4px 4px 0 #00f5ff}html[data-theme=arcade] .message.own{box-shadow:4px 4px 0 #ff2bd6}html[data-theme=arcade] .status-dot{background:#54ff65;box-shadow:0 0 12px #54ff65}html[data-theme=arcade] .ambient span:first-child{left:8%;bottom:6%;width:84%;height:1px;background:#00f5ff;box-shadow:0 -80px 0 #ff2bd622,0 -160px 0 #00f5ff22}
/* Vaporwave */
html[data-theme=vaporwave]{--bg:#120a2a;--surface:#35145f;--surface-2:#1c0d3d;--text:#fff5ff;--muted:#d4b9ef;--accent:#ff71ce;--accent-2:#01cdfe;--border:#b967ff;--danger:#ff6b9d;--shadow:0 12px 0 #120a2a,0 0 38px #ff71ce24;--radius:8px;--font:Arial,sans-serif;--display:'Courier New',monospace}html[data-theme=vaporwave] body{background:linear-gradient(180deg,#120a2a 0,#35145f 64%,#180c31 100%)}html[data-theme=vaporwave] .ambient::before{content:'';position:absolute;left:50%;bottom:12%;width:170px;height:170px;transform:translateX(-50%);border-radius:50%;background:repeating-linear-gradient(0deg,#ff8c78 0 10px,#ff71ce 10px 18px,#35145f 18px 23px);box-shadow:0 0 50px #ff71ce55}html[data-theme=vaporwave] .ambient::after{content:'';position:absolute;left:-20%;right:-20%;bottom:-30%;height:52%;background:linear-gradient(#01cdfeaa 1px,transparent 1px),linear-gradient(90deg,#01cdfe88 1px,transparent 1px);background-size:42px 28px;transform:perspective(260px) rotateX(58deg);transform-origin:top}html[data-theme=vaporwave] .panel{background:#35145ff2}html[data-theme=vaporwave] .primary{background:linear-gradient(90deg,#ff71ce,#b967ff);color:#120a2a;border-color:#01cdfe;box-shadow:0 0 16px #ff71ce55}html[data-theme=vaporwave] .secondary,html[data-theme=vaporwave] .cat-button{background:#211044;color:#01cdfe;border-color:#ff71ce}html[data-theme=vaporwave] .message{border-color:#01cdfe;background:#241044}html[data-theme=vaporwave] .message.own{border-color:#ff71ce;background:#4a1d67}html[data-theme=vaporwave] h1,html[data-theme=vaporwave] .brand{letter-spacing:.12em;text-transform:uppercase}html[data-theme=vaporwave] .cat-art{filter:drop-shadow(0 0 7px #ff71ce88)}
@keyframes blink{50%{opacity:0}}@keyframes tail{to{transform:rotate(10deg)}}@keyframes eyes{0%,92%,100%{transform:scaleY(1)}94%,97%{transform:scaleY(.15)}}
@media(max-width:700px){.shell{width:min(100% - 20px,980px);padding-top:12px}.network-bar{align-items:flex-start}.network-meta{display:none}.panel{padding:26px 18px}.form-grid,.theme-picker{grid-template-columns:1fr}.access-row>div{grid-template-columns:1fr}.chat-head{align-items:flex-start;flex-direction:column}.messages{height:52vh;min-height:280px}.message{width:88%}.cat-message{width:max-content;max-width:88%}#composer{grid-template-columns:1fr auto}#composer input{grid-column:1/-1}.cat-button{justify-content:center}.room-status{gap:8px 14px}h1{font-size:clamp(28px,10vw,42px)}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important}.cursor{opacity:1}}

/* Logo Ephemerate */
.network-meta { margin-left: auto; }
.ephemerate-logo {
  display: block;
  width: 48px;
  height: 48px;
  object-fit: cover;
  flex-shrink: 0;
}
@media (max-width: 700px) {
  .network-bar { align-items: center; }
  .ephemerate-logo { margin-left: auto; }
}

/* QR dell'invito */
.chat-actions{display:flex;flex-wrap:wrap;gap:8px}
.qr-panel{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-top:18px;padding:16px;border:2px solid var(--border);background:var(--surface)}
.qr-panel[hidden]{display:none}
.qr-graphic{width:min(100%,280px);flex:0 1 280px}
.qr-graphic svg{display:block;width:100%;height:auto;aspect-ratio:1}
.qr-info{flex:1 1 200px;min-width:0;color:var(--text)}
.qr-info p{margin:8px 0 0;overflow-wrap:anywhere}
#qr-error{color:var(--danger)}