:root{--surface:#ffffff;--surface-muted:#f4f4f5;--border:#e4e4e7;--text-main:#18181b;--text-muted:#52525b;--primary:#6366f1;--primary-dark:#4f46e5;--accent:#22d3ee;--shadow-soft:0 12px 40px rgba(24,24,27,0.09);--gradient:linear-gradient(125deg,#6366f1 0%,#22d3ee 100%);--ice-accent:var(--primary);--ice-accent-2:var(--accent);--ice-ink:var(--text-main);--ice-muted:var(--text-muted);--ice-line:var(--border);--ice-panel:var(--surface-muted);--ice-glow:linear-gradient(135deg,color-mix(in srgb,var(--accent) 14%,var(--surface)) 0%,color-mix(in srgb,var(--primary) 10%,var(--surface-muted)) 100%);--ice-snap-pad:max(12px,env(safe-area-inset-left));--ice-snap-pad-r:max(12px,env(safe-area-inset-right));}
.ice-page{padding-bottom:2.5rem;}
.ice-probe{margin:0 0 1.25rem;padding:1rem 1.1rem;border-radius:16px;border:1px solid color-mix(in srgb,var(--ice-accent) 22%,var(--ice-line));background:linear-gradient(120deg,color-mix(in srgb,var(--ice-accent) 6%,var(--surface)) 0%,var(--surface) 55%);box-shadow:var(--shadow-soft);}
.ice-probe h2{margin:0 0 0.5rem;font-size:1.05rem;font-weight:700;color:var(--ice-ink);letter-spacing:-0.02em;}
.ice-probe p{margin:0;font-size:0.94rem;line-height:1.55;color:var(--ice-muted);}
.ice-probe ul{margin:0.65rem 0 0;padding-left:1.15rem;color:var(--ice-muted);font-size:0.9rem;line-height:1.5;}
.ice-lab{border-radius:22px;border:1px solid var(--ice-line);background:var(--surface);box-shadow:var(--shadow-soft);overflow:hidden;}
.ice-lab-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;padding:14px 16px;border-bottom:1px solid var(--ice-line);background:var(--ice-glow);}
.ice-lab-eyebrow{margin:0;font-size:0.68rem;font-weight:800;letter-spacing:0.14em;text-transform:uppercase;color:var(--ice-muted);}
.ice-lab-title{margin:2px 0 0;font-size:1.05rem;font-weight:700;color:var(--ice-ink);}
.ice-lab-actions{display:flex;flex-wrap:wrap;gap:8px;}
.ice-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 14px;border-radius:12px;font-size:0.82rem;font-weight:700;border:1px solid var(--ice-line);background:var(--surface);color:var(--ice-ink);cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease;}
.ice-btn:focus-visible{outline:none;border-color:var(--ice-accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--ice-accent) 22%,transparent);}
.ice-btn:active{transform:scale(0.98);}
.ice-btn--primary{background:var(--gradient);color:#fff;border-color:transparent;box-shadow:0 8px 22px color-mix(in srgb,var(--primary) 28%,transparent);}
.ice-btn--ghost{background:transparent;}
.ice-dropzone{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:clamp(28px,6vw,48px) 18px;border-bottom:1px solid var(--ice-line);cursor:pointer;transition:border-color .2s ease,background .2s ease;}
.ice-dropzone.is-active{background:color-mix(in srgb,var(--ice-accent) 8%,var(--surface-muted));border-bottom-color:color-mix(in srgb,var(--ice-accent) 35%,var(--ice-line));}
.ice-dropzone-icon{width:56px;height:56px;border-radius:18px;background:var(--gradient);color:#fff;display:grid;place-items:center;font-size:1.35rem;box-shadow:0 12px 28px color-mix(in srgb,var(--primary) 32%,transparent);}
.ice-dropzone h3{margin:0;font-size:1.1rem;font-weight:800;color:var(--ice-ink);letter-spacing:-0.02em;}
.ice-dropzone p{margin:0;font-size:0.88rem;line-height:1.5;color:var(--ice-muted);max-width:420px;}
.ice-file{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none;}
.ice-has-image .ice-dropzone{display:none;}
.ice-stage{display:none;padding:0;}
.ice-has-image .ice-stage{display:block;}
.ice-snap{display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;padding:14px var(--ice-snap-pad) 18px var(--ice-snap-pad-r);scrollbar-width:thin;}
.ice-snap::-webkit-scrollbar{height:6px;}
.ice-snap::-webkit-scrollbar-thumb{background:var(--ice-line);border-radius:99px;}
.ice-pane{flex:0 0 min(100%,360px);scroll-snap-align:start;border-radius:18px;border:1px solid var(--ice-line);background:var(--surface-muted);overflow:hidden;}
@media (min-width:900px){.ice-snap{display:grid;grid-template-columns:1fr 1fr;overflow:visible;padding:18px;gap:16px;}.ice-pane{flex:none;min-width:0;}}
.ice-pane-top{display:flex;justify-content:space-between;align-items:baseline;gap:10px;padding:10px 12px;background:var(--surface);border-bottom:1px solid var(--ice-line);}
.ice-pane-label{margin:0;font-size:0.72rem;font-weight:800;letter-spacing:0.12em;text-transform:uppercase;color:var(--ice-muted);}
.ice-metric-row{display:flex;flex-wrap:wrap;gap:6px 12px;font-size:0.78rem;color:var(--ice-muted);}
.ice-metric-row span{font-variant-numeric:tabular-nums;}
.ice-metric-delta{font-weight:800;color:var(--ice-muted);}
.ice-metric-delta--up{color:#059669;}
.ice-metric-delta--down{color:#dc2626;}
.ice-metric-delta--flat{color:var(--ice-muted);}
.ice-canvas-shell{position:relative;min-height:220px;display:flex;align-items:center;justify-content:center;padding:14px;background:repeating-linear-gradient(45deg,#e4e4e7 0,#e4e4e7 7px,transparent 7px,transparent 14px);background-size:14px 14px;}
@media (min-width:900px){.ice-canvas-shell{min-height:280px;}}
.ice-canvas{max-width:100%;height:auto;display:none;border-radius:10px;box-shadow:0 10px 30px rgba(15,23,42,0.12);}
.ice-placeholder{position:absolute;text-align:center;padding:0 16px;color:var(--ice-muted);font-size:0.86rem;line-height:1.45;pointer-events:none;}
.ice-histogram-wrap{padding:0 16px 16px;display:none;}
.ice-has-image .ice-histogram-wrap{display:block;}
.ice-hist-fold{border-radius:14px;border:1px solid var(--ice-line);background:var(--surface);overflow:hidden;}
.ice-hist-fold summary{cursor:pointer;list-style:none;padding:12px 14px;font-size:0.82rem;font-weight:700;color:var(--ice-ink);display:flex;align-items:center;justify-content:space-between;gap:8px;}
.ice-hist-fold summary::-webkit-details-marker{display:none;}
.ice-hist-fold summary::after{content:"+";font-weight:800;color:var(--ice-muted);}
.ice-hist-fold[open] summary::after{content:"\2212";}
.ice-hist-body{padding:0 12px 12px;display:grid;gap:12px;}
@media (min-width:700px){.ice-hist-body{grid-template-columns:1fr 1fr;}}
.ice-hist-canvas{width:100%;height:110px;background:var(--surface-muted);border-radius:10px;border:1px solid var(--ice-line);}
.ice-rail{padding:16px;border-top:1px solid var(--ice-line);background:linear-gradient(180deg,var(--surface) 0%,var(--surface-muted) 100%);}
.ice-field{margin-bottom:1.1rem;}
.ice-field:last-child{margin-bottom:0;}
.ice-field-label{display:block;font-size:0.72rem;font-weight:800;letter-spacing:0.1em;text-transform:uppercase;color:var(--ice-muted);margin-bottom:8px;}
.ice-select{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--ice-line);background:var(--surface);font-size:0.92rem;font-weight:600;color:var(--ice-ink);appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2371717a'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:1.1rem;padding-right:2.5rem;}
.ice-select:focus-visible{outline:none;border-color:var(--ice-accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--ice-accent) 18%,transparent);}
.ice-slider-row{display:grid;grid-template-columns:1fr auto;align-items:center;gap:12px;margin-bottom:12px;}
.ice-slider-row label{margin:0;font-size:0.82rem;font-weight:700;color:var(--ice-ink);}
.ice-slider-val{font-size:0.82rem;font-weight:800;font-variant-numeric:tabular-nums;color:var(--ice-accent);min-width:3.2rem;text-align:right;}
.ice-range{width:100%;height:6px;border-radius:99px;background:var(--ice-line);appearance:none;-webkit-appearance:none;}
.ice-range::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:var(--gradient);cursor:pointer;border:2px solid #fff;box-shadow:0 2px 8px rgba(0,0,0,0.15);}
.ice-range::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--gradient);cursor:pointer;border:2px solid #fff;box-shadow:0 2px 8px rgba(0,0,0,0.15);}
.ice-preset-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px;}
.ice-chip{padding:8px 12px;border-radius:999px;border:1px solid var(--ice-line);background:var(--surface);font-size:0.78rem;font-weight:700;color:var(--ice-muted);cursor:pointer;transition:background .15s ease,border-color .15s ease,color .15s ease;}
.ice-chip:hover,.ice-chip:focus-visible{border-color:color-mix(in srgb,var(--ice-accent) 40%,var(--ice-line));color:var(--ice-accent);}
.ice-chip:focus-visible{outline:none;box-shadow:0 0 0 3px color-mix(in srgb,var(--ice-accent) 18%,transparent);}
.ice-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.ice-actions .ice-btn{flex:1;min-width:120px;}
.ice-article{margin:2rem 0;padding:0;}
.ice-article h2{font-size:1.35rem;font-weight:800;margin:0 0 0.75rem;color:var(--ice-ink);letter-spacing:-0.02em;}
.ice-article h3{font-size:1.05rem;font-weight:700;margin:1.25rem 0 0.5rem;color:var(--ice-ink);}
.ice-article p,.ice-article li{font-size:0.95rem;line-height:1.65;color:var(--ice-muted);}
.ice-article p{margin:0 0 0.85rem;}
.ice-article ul{margin:0 0 0.85rem;padding-left:1.2rem;}
.ice-dl{display:grid;gap:10px;margin:1rem 0;}
.ice-dl div{border-radius:12px;border:1px solid var(--ice-line);padding:12px 14px;background:var(--surface);}
.ice-dl dt{margin:0;font-size:0.78rem;font-weight:800;letter-spacing:0.08em;text-transform:uppercase;color:var(--ice-muted);}
.ice-dl dd{margin:4px 0 0;font-size:0.9rem;color:var(--ice-ink);line-height:1.5;}
.ice-callout{margin:1rem 0;padding:12px 14px;border-left:4px solid var(--ice-accent-2);border-radius:0 12px 12px 0;background:color-mix(in srgb,var(--accent) 8%,var(--surface-muted));font-size:0.9rem;line-height:1.55;color:var(--ice-ink);}
.ice-grid-2{display:grid;gap:14px;}
@media (min-width:768px){.ice-grid-2{grid-template-columns:1fr 1fr;}}
.ice-tips{margin:0;padding:0;list-style:none;}
.ice-tips li{position:relative;padding:10px 0 10px 1.1rem;border-bottom:1px solid var(--ice-line);font-size:0.92rem;line-height:1.55;color:var(--ice-muted);}
.ice-tips li:last-child{border-bottom:none;}
.ice-tips li::before{content:"";position:absolute;left:0;top:1.05rem;width:6px;height:6px;border-radius:50%;background:var(--gradient);}