body{margin:0}
.entry-gate{min-height:100svh;display:grid;place-items:center;padding:32px 20px;background:radial-gradient(ellipse at 15% 5%,var(--mu-soft),transparent 48%),var(--bg);position:fixed;inset:0;overflow:auto;z-index:1000}
.entry-card{width:100%;max-width:480px;padding:32px;border:1px solid var(--line);border-radius:28px;background:var(--surface);box-shadow:var(--shadow);text-align:center;margin:auto}
.entry-logo{display:grid;place-items:center;width:60px;height:60px;border-radius:20px;background:var(--mu);color:var(--on-accent);font-size:38px;font-weight:700;margin:0 auto 20px}
.entry-card h1{font-size:30px}.entry-card p{color:var(--ink-2)}.entry-note{font-size:15px;line-height:1.8}.entry-form{display:grid;gap:14px;text-align:start;margin-top:24px}
.entry-form label{display:grid;gap:5px;font-weight:600;font-size:14px}.entry-form input,.entry-form select,.board-text-input,.chat-input{font:inherit;color:var(--ink);background:var(--surface);padding:12px;border:1.5px solid var(--line);border-radius:12px;width:100%;min-width:0}
.entry-form select{cursor:pointer}.entry-form .btn{min-height:48px}.entry-error{color:var(--bad)!important;font-size:14px;margin:0;min-height:0}.entry-error:empty{display:none}.entry-footnote{font-size:12px;line-height:1.8;margin-bottom:0}
.waiting-members{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:24px 0}.waiting-person{padding:16px 8px;background:var(--surface-2);border-radius:16px;display:flex;flex-direction:column;align-items:center;gap:8px;font-size:14px}.person-avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--mu-soft);color:var(--mu);font-weight:700;font-size:21px}.presence{font-size:12px;color:var(--ink-2)}.presence:before{content:'';display:inline-block;width:7px;height:7px;background:var(--ink-3);border-radius:50%;margin-inline-end:5px}.presence.is-online:before{background:var(--ok)}.entry-actions{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.together-bar{padding:12px 14px;margin:14px 0 18px;border:1px solid var(--mu);background:var(--mu-soft);border-radius:16px;display:flex;gap:12px;align-items:center;justify-content:space-between}.together-bar b{display:block;font-size:14px}.together-bar small{display:block;color:var(--ink-2);font-size:12px}.together-actions{display:flex;gap:6px;flex-wrap:wrap}.together-bar button{white-space:nowrap}.together-bar .btn{padding:7px 10px;font-size:12px}
.collab-backdrop{position:fixed;inset:0;background:#071d18a8;backdrop-filter:blur(3px);z-index:80}.collab-panel{position:fixed;inset:20px;z-index:81;max-width:1300px;margin:auto;border:1px solid var(--line);border-radius:24px;overflow:hidden;background:var(--surface);display:flex;flex-direction:column;box-shadow:0 24px 80px #0005}.collab-header{padding:16px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}.collab-header h2{font-size:19px}.collab-header p{margin:3px 0 0;font-size:12px;color:var(--ink-2)}.collab-main{display:grid;grid-template-columns:minmax(0,1fr) 280px;flex:1;min-height:0}.board-section{display:flex;flex-direction:column;min-height:0;min-width:0;padding:14px;gap:10px}.board-tools{display:flex;gap:6px;flex-wrap:wrap;align-items:center}.board-tools button{font-size:12px;padding:7px 10px;border-radius:9px;border:1px solid var(--line);background:var(--surface);color:var(--ink);touch-action:manipulation}.board-tools button[aria-pressed=true]{color:var(--on-accent);background:var(--mu);border-color:var(--mu)}.board-tools input[type=color]{width:34px;height:34px;border:0;background:none;padding:1px}.board-tools select{background:var(--surface);color:var(--ink);border:1px solid var(--line);padding:5px;border-radius:8px;font:inherit;font-size:12px}
.board-viewport{position:relative;flex:1;min-height:230px;border:1px solid var(--line);border-radius:14px;background:#fbfcfb;overflow:hidden;display:flex;align-items:center;justify-content:center}.board-svg{display:block;width:100%;height:100%;touch-action:none;user-select:none;background:radial-gradient(#d8e2df 1px,transparent 1px);background-size:20px 20px;cursor:crosshair}.board-svg text{font-family:"IBM Plex Sans Arabic",sans-serif;user-select:none}.board-svg .board-selected{filter:drop-shadow(0 0 4px #10b981)}.board-help{font-size:12px;color:var(--ink-2);display:flex;justify-content:space-between;gap:10px}.board-text-form{display:flex;gap:6px;align-items:center}.board-text-input{font-size:14px;padding:9px}.board-text-form button{white-space:nowrap}.board-sidebar{border-inline-start:1px solid var(--line);padding:16px;display:flex;flex-direction:column;gap:14px;min-height:0;overflow:auto}.study-person{padding:12px;border-radius:14px;background:var(--surface-2);font-size:13px}.study-person h3{font-size:15px;margin-bottom:7px}.study-metrics{display:flex;justify-content:space-between;gap:10px;font-size:12px}.study-metrics strong{display:block;font-size:21px;color:var(--mu)}.study-person .tiny{margin-top:6px;display:block}.study-person .btn{margin-top:8px;font-size:11px}.chat-box{display:flex;flex-direction:column;gap:8px;flex:1;min-height:180px}.chat-box h3{font-size:14px}.chat-log{min-height:100px;max-height:230px;flex:1;overflow:auto;display:flex;flex-direction:column;gap:8px}.chat-message{font-size:12px;background:var(--surface-2);padding:8px 10px;border-radius:12px;word-break:break-word;white-space:pre-wrap}.chat-message.mine{background:var(--mu-soft)}.chat-message b{font-size:11px;color:var(--mu);display:block}.chat-form{display:flex;gap:5px}.chat-input{font-size:13px;padding:8px}.chat-form button{padding:6px 9px}.board-save-status{color:var(--ok)}
#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);max-width:calc(100% - 32px);padding:12px 20px;border-radius:14px;background:var(--ink);color:var(--bg);box-shadow:var(--shadow);z-index:2000;font-size:14px;text-align:center}
@media(max-width:750px){.collab-panel{inset:6px;border-radius:18px}.collab-main{display:flex;flex-direction:column;overflow:auto}.board-section{min-height:65svh;flex:none}.board-viewport{min-height:280px}.board-sidebar{border-inline-start:0;border-top:1px solid var(--line);overflow:visible;flex:none;display:grid;grid-template-columns:1fr 1fr;padding:12px}.chat-box{grid-column:1/-1}.collab-header{padding:12px}.together-bar{align-items:flex-start;flex-direction:column;gap:8px}.together-actions{width:100%}.together-actions button{flex:1}.entry-card{padding:26px 20px}.board-tools button{padding:8px}.collab-header p{font-size:11px}}