:root{--paper: #F9F5EC;--paper-warm: #F4EFE2;--paper-bright: #FCFAF2;--paper-deep: #ECE6D9;--ink: #2B2520;--ink-soft: #4A3F33;--ink-muted: #6B5947;--ink-faint: #8A7A66;--ink-faded: #B5A48F;--sepia: #C9B89C;--sepia-strong: #A18C6B;--accent: #C08A2E;--accent-soft: #A47B4D;--rose: #B86F5A;--moss: #6F8158;--teal: #1395B9;--teal-soft: rgba(19, 149, 185, .14);--teal-tint: rgba(19, 149, 185, .06);--solver: #1E9E80;--solver-soft: rgba(30, 158, 128, .14);--solver-tint: rgba(30, 158, 128, .06);--spark: #7B5EA7;--iontone-blue: #1FBCE6;--shadow-d: rgba(108, 86, 58, .18);--shadow-d-s: rgba(108, 86, 58, .1);--shadow-d-x: rgba(108, 86, 58, .06);--shadow-l: rgba(255, 251, 240, .95);--shadow-l-s: rgba(255, 251, 240, .7);--font-display: "Fraunces", "Iowan Old Style", Georgia, "Charter", serif;--font-body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;--font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;--r-sm: 8px;--r-md: 12px;--r-lg: 18px;--r-xl: 24px;--r-2xl: 32px}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;height:100%}body{font-family:var(--font-body);background:var(--paper);color:var(--ink);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}#root{height:100%;display:flex;flex-direction:column}button{cursor:pointer;font-family:inherit}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--r-sm);border:1px solid transparent;font-size:13px;font-weight:500;transition:background .12s,color .12s,border-color .12s}.btn.primary{background:var(--ink);color:var(--paper-bright);border-color:var(--ink)}.btn.primary:hover{background:var(--ink-soft);border-color:var(--ink-soft)}.btn.ghost{background:transparent;color:var(--ink-muted);border-color:var(--sepia)}.btn.ghost:hover{background:var(--paper-warm);color:var(--ink)}.screen-center{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:12px;color:var(--ink-muted)}.spinner{width:28px;height:28px;border:2.5px solid var(--sepia);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.app-shell{display:flex;flex-direction:column;height:100%;background:var(--paper)}.topbar{display:flex;align-items:center;justify-content:space-between;height:48px;padding:0 16px;border-bottom:1px solid var(--paper-deep);background:var(--paper-bright);flex-shrink:0}.topbar-brand{font-family:var(--font-display);font-size:16px;font-weight:500;color:var(--ink);display:flex;align-items:center;gap:8px}.topbar-brand .edition-badge{font-family:var(--font-body);font-size:10px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:2px 7px;border-radius:100px;background:var(--paper-deep);color:var(--ink-muted)}.topbar-brand .edition-badge.apex{background:#c08a2e24;color:var(--accent-soft)}.topbar-brand .edition-badge.spark{background:#7b5ea71f;color:var(--spark)}.topbar-actions{display:flex;align-items:center;gap:8px}.avatar-btn{display:flex;align-items:center;gap:8px;padding:4px 8px;border-radius:var(--r-sm);background:transparent;border:none;color:var(--ink-muted);font-size:13px;transition:background .12s}.avatar-btn:hover{background:var(--paper-warm);color:var(--ink)}.avatar{width:28px;height:28px;border-radius:50%;background:var(--paper-deep);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:600;color:var(--ink-muted);flex-shrink:0}.tab-strip{display:flex;align-items:center;gap:2px;padding:0 12px;overflow-x:auto;scrollbar-width:thin;scrollbar-color:var(--ink-faded) transparent;border-bottom:1px solid var(--paper-deep);background:var(--paper-bright);flex-shrink:0;height:40px}.tab-strip::-webkit-scrollbar{height:4px}.tab-strip::-webkit-scrollbar-thumb{background:var(--ink-faded);border-radius:4px}.tab{display:flex;align-items:center;gap:5px;padding:0 10px;height:100%;border:none;background:transparent;color:var(--ink-muted);font-size:12.5px;font-weight:500;white-space:nowrap;border-bottom:2px solid transparent;transition:color .12s,border-color .12s;cursor:pointer}.tab:hover{color:var(--ink)}.tab.active{color:var(--ink);border-bottom-color:var(--accent)}.tab.spark-journey.active{border-bottom-color:var(--spark)}.shell-content{flex:1;overflow:auto;padding:24px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#2b252059;display:flex;align-items:flex-start;justify-content:flex-end;padding:56px 16px 0;z-index:100}.modal-card{background:var(--paper-bright);border:1px solid var(--paper-deep);border-radius:var(--r-lg);box-shadow:0 8px 32px var(--shadow-d);width:320px;padding:20px;display:flex;flex-direction:column;gap:16px}.modal-card h3{margin:0;font-family:var(--font-display);font-size:15px;font-weight:500;color:var(--ink)}.membership-list{display:flex;flex-direction:column;gap:6px}.membership-item{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:var(--r-sm);border:1px solid var(--paper-deep);background:var(--paper-warm);cursor:pointer;transition:background .12s,border-color .12s}.membership-item:hover{background:var(--paper-deep);border-color:var(--sepia)}.membership-item.active{border-color:var(--accent);background:#c08a2e0f}.membership-item .name{font-size:13px;font-weight:500;color:var(--ink)}.membership-item .meta{font-size:11px;color:var(--ink-faint);margin-top:1px}.membership-item .check{color:var(--accent);font-size:16px}.module-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;height:60vh;gap:10px;color:var(--ink-faint);text-align:center}.module-placeholder h2{font-family:var(--font-display);font-size:22px;font-weight:400;color:var(--ink-soft);margin:0}.module-placeholder p{font-size:13px;color:var(--ink-faint);max-width:320px;margin:0}