:root{--surface:#ffffff;--surface-muted:#f4f6fb;--border:#e2e8f0;--text-main:#0f172a;--text-muted:#64748b;--primary:#2563eb;--primary-dark:#1d4ed8;--accent:#36cfc9;--shadow-soft:0 8px 24px rgba(15,23,42,0.06);--gradient:linear-gradient(135deg,#2563eb,#36cfc9);--iota-ink:var(--text-main);--iota-ink-soft:#1e293b;--iota-mist:#f1f5f9;--iota-glass:rgba(255,255,255,0.72);--iota-accent:#0d9488;--iota-accent-dim:#ccfbf1;--iota-ring:#14b8a6;--iota-terminal:#0b1020;--iota-terminal-border:#1e293b;--iota-success:#059669;--iota-warn:#d97706;--iota-err:#dc2626;--iota-info:#2563eb;--iota-radius:14px;--iota-radius-sm:10px;--iota-shadow:0 18px 50px rgba(15,23,42,0.08);--iota-shadow-soft:var(--shadow-soft);}
.iota-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.iota-workbench{margin:0 0 2.5rem;}
.iota-workbench-grid{display:grid;grid-template-columns:1fr;gap:1rem;}
@media (min-width:900px){.iota-workbench-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:1.25rem;align-items:stretch;}}
.iota-panel{background:var(--iota-glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(148,163,184,0.35);border-radius:var(--iota-radius);box-shadow:var(--iota-shadow-soft);padding:clamp(1rem,4vw,1.35rem);min-width:0;}
.iota-panel--sink{background:linear-gradient(165deg,#0f172a 0%,var(--iota-terminal) 100%);border-color:var(--iota-terminal-border);color:#e2e8f0;box-shadow:var(--iota-shadow);}
.iota-rail{display:flex;flex-direction:column;gap:1rem;}
.iota-pillrow{display:flex;flex-wrap:wrap;align-items:center;gap:0.5rem 0.75rem;margin-bottom:0.35rem;}
.iota-pill{font-size:0.7rem;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;color:var(--iota-accent);background:var(--iota-accent-dim);padding:0.28rem 0.65rem;border-radius:999px;}
.iota-live{font-size:0.72rem;font-weight:600;color:var(--text-muted);}
.iota-sink--live .iota-live{color:#5eead4;}
.iota-dropzone{position:relative;border:2px dashed rgba(100,116,139,0.45);border-radius:var(--iota-radius-sm);padding:clamp(1.25rem,5vw,2rem);text-align:center;cursor:pointer;transition:border-color 0.2s ease,background 0.2s ease,transform 0.2s ease;background:linear-gradient(180deg,rgba(255,255,255,0.9),rgba(241,245,249,0.65));min-height:min(44vw,200px);display:flex;align-items:center;justify-content:center;}
.iota-dropzone:hover{border-color:var(--iota-ring);background:linear-gradient(180deg,#fff,var(--iota-accent-dim));}
.iota-dropzone:focus{outline:2px solid var(--iota-ring);outline-offset:3px;}
.iota-dropzone--drag{border-color:var(--iota-ring);transform:scale(1.01);background:var(--iota-accent-dim);}
.iota-dropzone__inner{pointer-events:none;}
.iota-dropzone__glyph{width:52px;height:52px;margin:0 auto 0.75rem;border-radius:14px;background:var(--iota-ink);color:#fff;display:grid;place-items:center;font-size:1.1rem;font-weight:700;}
.iota-dropzone__title{font-weight:700;font-size:1.05rem;color:var(--iota-ink);margin:0 0 0.35rem;}
.iota-dropzone__hint{font-size:0.875rem;color:var(--text-muted);margin:0;line-height:1.45;}
.iota-tuning{display:grid;grid-template-columns:1fr;gap:1rem;}
@media (min-width:480px){.iota-tuning{grid-template-columns:1fr 1fr;gap:0.85rem;}}
.iota-field{display:flex;flex-direction:column;gap:0.4rem;}
.iota-field__label{font-size:0.8rem;font-weight:650;color:var(--iota-ink-soft);}
.iota-range{display:flex;align-items:center;gap:0.65rem;}
.iota-range__input{flex:1;min-width:0;height:6px;border-radius:99px;background:rgba(148,163,184,0.35);-webkit-appearance:none;appearance:none;cursor:pointer;}
.iota-range__input::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:var(--iota-accent);box-shadow:0 2px 8px rgba(13,148,136,0.45);}
.iota-range__input::-moz-range-thumb{width:20px;height:20px;border:0;border-radius:50%;background:var(--iota-accent);}
.iota-range__val{min-width:2.5rem;text-align:center;font-weight:700;font-size:0.85rem;padding:0.25rem 0.5rem;border-radius:8px;background:var(--iota-ink);color:#fff;}
.iota-select{width:100%;padding:0.65rem 0.85rem;border-radius:var(--iota-radius-sm);border:1px solid rgba(148,163,184,0.55);background:#fff;font-size:0.9rem;color:var(--iota-ink);}
.iota-select:focus{outline:2px solid var(--iota-ring);outline-offset:1px;border-color:var(--iota-ring);}
.iota-check{display:flex;align-items:flex-start;gap:0.55rem;font-size:0.875rem;color:var(--iota-ink-soft);cursor:pointer;}
.iota-check input{width:1.15rem;height:1.15rem;margin-top:0.12rem;accent-color:var(--iota-accent);cursor:pointer;}
.iota-preview-wrap{margin-top:0.25rem;border-radius:var(--iota-radius-sm);background:var(--iota-mist);border:1px solid rgba(148,163,184,0.35);padding:0.65rem;text-align:center;min-height:120px;display:flex;align-items:center;justify-content:center;}
.iota-preview-canvas{max-width:100%;height:auto;border-radius:8px;display:none;box-shadow:0 4px 16px rgba(15,23,42,0.12);}
.iota-preview-canvas--visible{display:block;}
.iota-preview-ph{font-size:0.85rem;color:var(--text-muted);font-style:italic;margin:0;}
.iota-sink-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:0.5rem;margin-bottom:0.85rem;}
.iota-sink-head h2{margin:0;font-size:clamp(1.05rem,2.5vw,1.2rem);font-weight:700;}
.iota-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:0.5rem;margin-bottom:0.85rem;}
@media (min-width:480px){.iota-stats{grid-template-columns:repeat(4,1fr);}}
.iota-stats[hidden]{display:none !important;}
.iota-stat{background:rgba(255,255,255,0.06);border:1px solid rgba(148,163,184,0.2);border-radius:var(--iota-radius-sm);padding:0.5rem 0.45rem;text-align:center;}
.iota-stat__val{font-size:clamp(0.95rem,2.5vw,1.1rem);font-weight:700;color:#5eead4;line-height:1.2;}
.iota-stat__lbl{font-size:0.65rem;letter-spacing:0.06em;text-transform:uppercase;color:#94a3b8;margin-top:0.2rem;}
.iota-output{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:clamp(5px,1.45vw,8px);line-height:1;white-space:pre;overflow:auto;max-height:min(52vh,420px);margin:0;padding:0.85rem;border-radius:var(--iota-radius-sm);background:#020617;border:1px solid rgba(51,65,85,0.85);color:#e2e8f0;scrollbar-width:thin;}
.iota-output--filled{border-color:rgba(45,212,191,0.45);}
.iota-actions{display:flex;flex-wrap:wrap;gap:0.5rem;margin-top:0.85rem;}
.iota-action{flex:1 1 auto;min-height:44px;padding:0.55rem 0.85rem;border-radius:var(--iota-radius-sm);font-weight:650;font-size:0.875rem;border:1px solid transparent;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:0.35rem;transition:transform 0.15s ease,opacity 0.15s ease;}
.iota-action:disabled{opacity:0.55;cursor:not-allowed;}
.iota-action--busy{pointer-events:none;}
.iota-action--primary{background:linear-gradient(135deg,#14b8a6,#0d9488);color:#fff;}
.iota-action--primary:hover:not(:disabled){transform:translateY(-1px);}
.iota-action--ghost{background:rgba(255,255,255,0.06);border-color:rgba(148,163,184,0.35);color:#e2e8f0;}
.iota-action--ghost:hover:not(:disabled){border-color:#5eead4;color:#5eead4;}
.iota-action--outline{background:transparent;border-color:rgba(148,163,184,0.45);color:#cbd5e1;}
.iota-action--outline:hover:not(:disabled){border-color:#fbbf24;color:#fbbf24;}
.iota-action__ic{font-size:1rem;line-height:1;}
.iota-action--pulse{animation:iotaPulse 0.55s ease;}
@keyframes iotaPulse{0%{transform:scale(1);}50%{transform:scale(1.02);}100%{transform:scale(1);}}
.iota-toast{position:fixed;top:max(16px,env(safe-area-inset-top));right:max(16px,env(safe-area-inset-right));left:auto;max-width:min(340px,calc(100vw - 32px));padding:0.75rem 1rem;border-radius:12px;font-weight:600;font-size:0.875rem;color:#fff;z-index:1080;box-shadow:0 12px 40px rgba(15,23,42,0.25);animation:iotaIn 0.28s ease;}
.iota-toast--success{background:var(--iota-success);}
.iota-toast--warning{background:var(--iota-warn);}
.iota-toast--error{background:var(--iota-err);}
.iota-toast--info{background:var(--iota-info);}
.iota-toast--out{animation:iotaOut 0.28s ease forwards;}
@keyframes iotaIn{from{transform:translateX(110%);opacity:0;}to{transform:translateX(0);opacity:1;}}
@keyframes iotaOut{from{transform:translateX(0);opacity:1;}to{transform:translateX(110%);opacity:0;}}
.iota-prose-zone{padding:0 0 3rem;}
.iota-prose-block{margin:0 auto 2.25rem;}
.iota-prose-block h2{font-size:clamp(1.25rem,3vw,1.5rem);font-weight:700;color:var(--iota-ink);margin:0 0 0.75rem;line-height:1.25;}
.iota-prose-block p{font-size:1rem;line-height:1.65;color:var(--iota-ink-soft);margin:0 0 0.85rem;}
.iota-prose-block p:last-child{margin-bottom:0;}
.iota-callout{border-left:4px solid var(--iota-accent);background:var(--iota-accent-dim);padding:0.85rem 1rem;border-radius:0 var(--iota-radius-sm) var(--iota-radius-sm) 0;margin:1rem 0;font-size:0.95rem;color:var(--iota-ink-soft);}
.iota-dl{margin:0;padding:0;}
.iota-dl dt{font-weight:700;color:var(--iota-ink);margin-top:0.85rem;font-size:0.95rem;}
.iota-dl dd{margin:0.25rem 0 0;padding:0;color:var(--iota-ink-soft);line-height:1.6;}
.iota-sample{display:block;background:#0b1020;color:#94a3b8;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:0.7rem;line-height:1.1;padding:1rem;border-radius:var(--iota-radius-sm);overflow:auto;margin:0.75rem 0;border:1px solid var(--iota-terminal-border);}
.iota-list{margin:0.5rem 0 0;padding-left:1.2rem;color:var(--iota-ink-soft);line-height:1.55;}
.iota-list li{margin-bottom:0.35rem;}
@media (prefers-reduced-motion:reduce){.iota-dropzone,.iota-action,.iota-toast{transition:none !important;animation:none !important;}}