Beta3

New data columns for UV, soil and wind direction.
Add icons to some data
Better table formatting and responsiveness
Improved scope background variations

assets/sunscope.css

@@ -84,7 +84,11 @@ body {
   min-height: 100vh;
   padding: 52px 28px 32px;
   position: relative;
-  overflow-x: hidden;
+  /* overflow-x: clip (not hidden) — `clip` clips horizontal overflow
+     WITHOUT making this a scroll container, so `position: sticky` on
+     descendants (table <th>) can still stick relative to the viewport.
+     `hidden` would create a containing block that breaks sticky. */
+  overflow-x: clip;
 }
 
 /* Two big soft glows in the corners — pure decoration.
@@ -353,13 +357,83 @@ body {
     sunscope.js (the confidence bands). This file only handles spacing,
     typography, and the active-tab underline.                          */
 
+/* Wrapper that hosts the scrollable strip, edge fades, and chevrons. */
+.utci-day-tabs-wrap {
+  position: relative;
+  margin-bottom: 18px;
+}
+
+/* Edge fade gradients — only show when there's content to scroll to. */
+.utci-day-tabs-wrap::before,
+.utci-day-tabs-wrap::after {
+  content: '';
+  position: absolute;
+  top: 0;
+  bottom: 2px; /* leave the underline border visible */
+  width: 40px;
+  pointer-events: none;
+  z-index: 1;
+  opacity: 0;
+  transition: opacity 0.2s;
+}
+.utci-day-tabs-wrap::before {
+  left: 0;
+  background: linear-gradient(to right, #f5edd6 0%, rgba(245,237,214,0) 100%);
+}
+.utci-day-tabs-wrap::after {
+  right: 0;
+  background: linear-gradient(to left, #f5edd6 0%, rgba(245,237,214,0) 100%);
+}
+.utci-day-tabs-wrap.fade-left::before  { opacity: 1; }
+.utci-day-tabs-wrap.fade-right::after  { opacity: 1; }
+
+/* Chevron buttons — sit on top of the fades. */
+.utci-day-scroll {
+  position: absolute;
+  top: 50%;
+  transform: translateY(-50%);
+  width: 30px;
+  height: 30px;
+  border-radius: 50%;
+  border: 1px solid #d4c0a0;
+  background: #fffcf2;
+  color: #6b4f2a;
+  font-size: 20px;
+  font-family: Fraunces, serif;
+  line-height: 1;
+  cursor: pointer;
+  z-index: 2;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 0 0 2px 0;
+  box-shadow: 0 1px 4px rgba(80,55,20,0.12);
+  transition: opacity 0.2s, background 0.15s, transform 0.15s;
+}
+.utci-day-scroll:hover {
+  background: #fef3dc;
+}
+.utci-day-scroll.left  { left: -2px; }
+.utci-day-scroll.right { right: -2px; }
+.utci-day-scroll.hidden {
+  opacity: 0;
+  pointer-events: none;
+}
+
 .utci-day-tabs {
   display: flex;
-  margin-bottom: 18px;
   border-bottom: 2px solid #d4c0a0;
+  overflow-x: auto;
+  scroll-behavior: smooth;
+  scrollbar-width: none;        /* Firefox */
+  -ms-overflow-style: none;     /* old Edge */
+}
+.utci-day-tabs::-webkit-scrollbar {
+  display: none;                /* Chrome/Safari */
 }
 
 .utci-day-tab {
+  flex-shrink: 0;
   padding: 12px 24px;
   cursor: pointer;
   font-family: JetBrains Mono, monospace;
@@ -452,18 +526,49 @@ body {
 /* ── 7. HOURLY TABLE ────────────────────────────────────────────────── */
 
 .utci-table-wrap {
-  overflow-x: auto;
+  /* No overflow on this wrapper — having any overflow here would make
+     the wrapper a scroll container, which would break sticky-to-viewport
+     on the .utci-thead-sticky strip inside.
+     The body scroller (.utci-tbody-scroll) owns the horizontal scrollbar. */
   border: 1.5px solid #c9b08a;
   background: #fffcf2;
 }
 
+/* ── STICKY HEADER STRIP ────────────────────────────────────────────────
+   Sits above the body and locks to the top of the viewport while the
+   page scrolls. Has overflow:hidden so the inner .utci-thead-track can
+   be translateX'd by JS to follow the body's scrollLeft. */
+.utci-thead-sticky {
+  position: sticky;
+  top: 0;
+  z-index: 5;
+  overflow: hidden;
+  background: #f0e4c4;
+  border-bottom: 2px solid #c9b08a;
+  box-shadow: 0 2px 5px rgba(74, 52, 32, 0.10);
+}
+
+/* The shifted track inside the sticky header — JS sets transform:translate3d
+   to keep its columns aligned with the body scroller's scrollLeft. */
+.utci-thead-track {
+  will-change: transform;
+}
+
+/* Body scroller — owns the horizontal scrollbar for the whole table. */
+.utci-tbody-scroll {
+  overflow-x: auto;
+  overflow-y: visible;
+}
+
 .utci-table {
   width: 100%;
   border-collapse: collapse;
   font-size: 14px;
 }
 
-/* Column headings  (Hour, Air, RH, Wind...) */
+/* Column headings  (Hour, Air, RH, Wind...).
+   NOTE: stickiness is handled by the .utci-thead-sticky wrapper, not
+   the <th> itself — see the new wrapper rules higher up. */
 .utci-table th {
   background: #f0e4c4;
   color: #6b4f2a;
@@ -475,9 +580,6 @@ body {
   padding: 14px 12px;
   text-align: right;
   white-space: nowrap;
-  position: sticky;
-  top: 0;                               /* sticks to the top while scrolling */
-  border-bottom: 2px solid #c9b08a;
 }
 
 /* The Hour column aligns left, the rest align right */
@@ -510,6 +612,19 @@ body {
   font-variant-numeric: tabular-nums;   /* stops digits jiggling between rows */
   white-space: nowrap;
   color: #4a3420;
+  /* Baseline minimum column width — the JS width-sync uses max(60, head,
+     body) so very-narrow data columns ("Air 5.0") still feel comfortable
+     to read instead of being squashed. */
+  min-width: 60px;
+}
+
+/* Subtle vertical column dividers — same pale cream as the row
+   dividers so the table reads as a soft grid, not a hard one. The
+   last column has no divider so it doesn't double-up with the
+   container border. */
+.utci-table th:not(:last-child),
+.utci-table td:not(:last-child) {
+  border-right: 1px solid #ede4cc;
 }
 
 
@@ -564,6 +679,17 @@ body {
   font-size: 14px;
 }
 
+/* Hero variant used for the UTCI+P column — the headline number.
+   Bigger, bolder, more breathing room so the eye lands here first. */
+.utci-cell-hero {
+  padding: 7px 16px;
+  font-size: 19px;
+  font-weight: 700;
+  min-width: 76px;
+  letter-spacing: 0.01em;
+  box-shadow: 0 1px 0 rgba(0,0,0,0.15) inset, 0 0 0 1px rgba(255,255,255,0.08) inset;
+}
+
 .utci-band-label {
   font-family: JetBrains Mono, monospace;
   font-size: 10px;

assets/sunscope.js

@@ -42,7 +42,7 @@
 // Tiny framework imports — these are the only three "outside" dependencies.
 // All three live in assets/vendor/ so the site has no external requests.
 import { h, render, Fragment } from './vendor/preact.js';
-import { useState, useEffect, useRef } from './vendor/preact-hooks.js';
+import { useState, useEffect, useLayoutEffect, useRef } from './vendor/preact-hooks.js';
 import htm from './vendor/htm.js';
 
 // `html` is the magic tagged-template function. Use it like:
@@ -296,6 +296,89 @@ function precipPenalty(precipMm, snowCmH, windMs) {
   return -Math.round(penalty * 10) / 10;
 }
 
+// ═══════════════════════════════════════════════════════════════════
+// WIND COMPASS — meteorological bearing (deg FROM) → 8-point label.
+// ───────────────────────────────────────────────────────────────────
+// 0/360 = wind FROM north. The pointer in WindVane should rotate so
+// the arrow's tail points to this bearing (i.e. shows where the wind
+// comes from), matching how real weather vanes behave.
+// ═══════════════════════════════════════════════════════════════════
+function windCompass8(deg) {
+  if (deg == null || isNaN(deg)) return { label: '—', snapped: 0 };
+  const dirs   = ['N','NE','E','SE','S','SW','W','NW'];
+  const idx    = Math.round(((deg % 360) + 360) % 360 / 45) % 8;
+  return { label: dirs[idx], snapped: idx * 45 };
+}
+
+// ═══════════════════════════════════════════════════════════════════
+// UV-A / UV-B SPLIT (estimate, not measurement).
+// ───────────────────────────────────────────────────────────────────
+// Open-Meteo gives a total erythemal UV index. UV-A reaches the
+// surface much more reliably than UV-B; UV-B is far more sensitive
+// to solar elevation because of atmospheric path length.
+//
+// Cheap model:
+//   At noon (sun overhead) the UV-B share of total UV index is ~15%,
+//   UV-A about 85%. Below ~10° solar elevation, UV-B falls off fast.
+//   We return two pseudo-"index" numbers so the columns are in the
+//   same units the user already understands.
+// Label these as estimates in the UI.
+// ═══════════════════════════════════════════════════════════════════
+function uvSplit(uv, elevDeg) {
+  if (!uv || uv <= 0 || elevDeg <= 0) return { uvA: 0, uvB: 0 };
+  const sinE  = Math.sin(elevDeg * Math.PI / 180);
+  const uvbFr = Math.max(0.005, Math.min(0.15, 0.15 * Math.pow(sinE, 1.6)));
+  const uvaFr = 1 - uvbFr;
+  return { uvA: uv * uvaFr, uvB: uv * uvbFr };
+}
+
+// ═══════════════════════════════════════════════════════════════════
+// SUNBURN TIME — minutes to MED for the chosen Fitzpatrick skin type.
+// ───────────────────────────────────────────────────────────────────
+// Standard erythemal model: time_min ≈ base_minutes[type] / UV_index.
+// Numbers are the well-known "unprotected, midday, no sunscreen"
+// reference times at UV = 1. Returns Infinity when UV is 0 (night).
+// ═══════════════════════════════════════════════════════════════════
+const SKIN_TYPES = {
+  I:   { name: 'I · Very fair',   base: 67 },
+  II:  { name: 'II · Fair',       base: 100 },
+  III: { name: 'III · Light',     base: 200 },
+  IV:  { name: 'IV · Mid',        base: 300 },
+  V:   { name: 'V · Dark',        base: 400 },
+  VI:  { name: 'VI · Very dark',  base: 500 },
+};
+function sunburnMinutes(uv, skinType = 'II') {
+  if (!uv || uv <= 0) return Infinity;
+  const base = (SKIN_TYPES[skinType] || SKIN_TYPES.II).base;
+  return base / uv;
+}
+function burnLabel(mins) {
+  if (!isFinite(mins)) return '—';
+  if (mins >= 480) return '8h+';
+  if (mins >= 60)  return `${(mins/60).toFixed(1)}h`;
+  return `${Math.round(mins)}m`;
+}
+
+// ═══════════════════════════════════════════════════════════════════
+// CLOUD CATEGORY — pick one of 4 icon styles from low/mid/high split.
+// ───────────────────────────────────────────────────────────────────
+// Returns: 'clear' | 'wispy' | 'scattered' | 'overcast'
+// Uses total cover for headline level, but biases towards 'wispy'
+// when only high cloud is present (cirrus barely blocks the sun).
+// ═══════════════════════════════════════════════════════════════════
+function cloudCategory(total, low, mid, high) {
+  const t = total ?? 0;
+  const l = low   ?? 0;
+  const m = mid   ?? 0;
+  const h = high  ?? 0;
+  if (t < 10) return 'clear';
+  // Mostly high cloud with little low/mid → wispy regardless of % total
+  if (h > 40 && l < 25 && m < 25) return 'wispy';
+  if (t < 40) return 'wispy';
+  if (t < 75) return 'scattered';
+  return 'overcast';
+}
+
 // ═══════════════════════════════════════════════════════════════════
 // CONFIDENCE BANDS — smooth high-noon → sunset gradient on day tabs.
 // ───────────────────────────────────────────────────────────────────
@@ -390,6 +473,18 @@ function skyFillForElev(e) {
   return '#1a1538';
 }
 
+// Grass palette — mirrors skyFillForElev but for the ground.
+// `top` = grass blade tips (catches sky light), `bot` = soil shadow.
+function grassFillForElev(e) {
+  if (e > 30)  return { top: '#86c44a', bot: '#558a2e' };  // bright noon grass
+  if (e > 10)  return { top: '#7ab846', bot: '#4d802c' };  // mid-day
+  if (e > 3)   return { top: '#b8a83e', bot: '#7a6a26' };  // golden-hour glow
+  if (e > -3)  return { top: '#c08048', bot: '#7a4a2a' };  // sunrise/sunset embers
+  if (e > -8)  return { top: '#665884', bot: '#3e3556' };  // civil twilight purple
+  if (e > -14) return { top: '#363356', bot: '#1c1a34' };  // nautical night
+  return { top: '#201d3a', bot: '#0d0b20' };               // astronomical night
+}
+
 // ═══════════════════════════════════════════════════════════════════
 // SKYSCOPE — the little porthole circle next to each hour.
 // ───────────────────────────────────────────────────────────────────
@@ -407,7 +502,7 @@ function skyFillForElev(e) {
 //   • sunR       — the sun's drawn radius
 //   • the stroke colour #c8922a is the brass — change for a different metal
 // ═══════════════════════════════════════════════════════════════════
-function SkyScope({ elev, dt, size = 22 }) {
+function SkyScope({ elev, dt, size = 26 }) {
   const r = size / 2;
   const innerR = r - 1.2;
   const skyFill = skyFillForElev(elev);
@@ -420,7 +515,10 @@ function SkyScope({ elev, dt, size = 22 }) {
   const phaseOffset = Math.cos(2 * Math.PI * phase) * moonR;
   const moonLitFromRight = phase < 0.5;
   const shadowCx = r + (moonLitFromRight ? -phaseOffset : phaseOffset);
-  const clipId = `scope-clip-${size}-${Math.round(elev * 10)}-${Math.round(phase * 1000)}`;
+  const grass = grassFillForElev(elev);
+  const uid = `${size}-${Math.round(elev * 10)}-${Math.round(phase * 1000)}`;
+  const clipId = `scope-clip-${uid}`;
+  const grassId = `scope-grass-${uid}`;
   return html`
     <svg width=${size} height=${size} viewBox=${`0 0 ${size} ${size}`}
          style=${{ flexShrink: 0, display: 'inline-block', verticalAlign: 'middle' }}>
@@ -428,11 +526,14 @@ function SkyScope({ elev, dt, size = 22 }) {
         <clipPath id=${clipId}>
           <circle cx=${r} cy=${r} r=${innerR} />
         </clipPath>
+        <linearGradient id=${grassId} x1="0" y1="0" x2="0" y2="1">
+          <stop offset="0%" stop-color=${grass.top} />
+          <stop offset="100%" stop-color=${grass.bot} />
+        </linearGradient>
       </defs>
       <circle cx=${r} cy=${r} r=${innerR} fill=${skyFill} />
-      <line x1=${r - innerR} y1=${r} x2=${r + innerR} y2=${r}
+      <path d=${`M ${r - innerR} ${r} A ${innerR} ${innerR} 0 0 0 ${r + innerR} ${r} Z`}
-            stroke="rgba(0,0,0,0.22)" stroke-width="0.5"
+            fill=${`url(#${grassId})`}
-            stroke-dasharray="1.2,1.2"
             clip-path=${`url(#${clipId})`} />
       ${isDay
         ? html`
@@ -451,6 +552,150 @@ function SkyScope({ elev, dt, size = 22 }) {
     </svg>`;
 }
 
+// ═══════════════════════════════════════════════════════════════════
+// WINDVANE — clean compass arrow on transparent background.
+// ───────────────────────────────────────────────────────────────────
+// Traditional weather-vane behaviour: the ARROWHEAD points INTO the
+// wind (toward the source). Wind from the north → head points north.
+//
+//   props:
+//     bearing — degrees, 0 = wind FROM north
+//     size    — pixel diameter (default 30 to match SkyScope)
+//
+// Tweakable bits:
+//   • arrowColor / nMarkerColor — line/fill colours
+//   • Tiny N letter sits just above the arrow tail for orientation
+// ═══════════════════════════════════════════════════════════════════
+function WindVane({ bearing, size = 30 }) {
+  if (bearing == null || isNaN(bearing)) {
+    return html`<span style=${{ opacity: 0.5, fontSize: '11px' }}>—</span>`;
+  }
+  const r = size / 2;
+  // The shaft is drawn pointing DOWN by default (head at the bottom).
+  // To place the head at the bearing direction, rotate by bearing + 180.
+  const rot = (bearing + 180) % 360;
+  const arrowColor = '#2a1a08';
+  const headColor  = '#c44a3a';
+  const nColor     = '#9a7d5a';
+  // Geometry of the single-ended arrow (drawn pointing DOWN by default).
+  // After rotation by (bearing + 180), the head lands on the bearing
+  // direction — i.e. the side the wind is coming FROM.
+  const tipY     = r * 0.15;            // arrowhead tip
+  const headBase = r * 0.58;            // bottom of the triangle head
+  const headW    = r * 0.42;
+  const tailEndY = r * 1.78;            // shaft's tail end
+  const tailDotR = Math.max(1.0, size * 0.06);
+  return html`
+    <svg width=${size} height=${size} viewBox=${`0 0 ${size} ${size}`}
+         style=${{ flexShrink: 0, display: 'inline-block', verticalAlign: 'middle', overflow: 'visible' }}>
+      <!-- Static N marker — small letter above the centre, doesn't rotate -->
+      <text x=${r} y=${size * 0.18} text-anchor="middle"
+            font-family="JetBrains Mono, monospace"
+            font-size=${size * 0.26} font-weight="700"
+            fill=${nColor} opacity="0.55">N</text>
+      <!-- Rotating arrow. Shaft + ONE arrowhead. A small round nub on
+           the tail end keeps the orientation unambiguous without
+           looking like a second arrowhead. -->
+      <g transform=${`rotate(${rot} ${r} ${r})`}>
+        <!-- shaft -->
+        <line x1=${r} y1=${headBase} x2=${r} y2=${tailEndY}
+              stroke=${arrowColor} stroke-width=${Math.max(1.4, size*0.07)} stroke-linecap="round" />
+        <!-- single arrowhead at the upwind end (head into the wind) -->
+        <polygon points=${`${r - headW},${headBase} ${r + headW},${headBase} ${r},${tipY}`}
+                 fill=${headColor} stroke=${arrowColor} stroke-width="0.6" stroke-linejoin="round" />
+        <!-- small dot at the downwind end of the shaft, so orientation
+             is unambiguous (no chance of reading the tail as a head) -->
+        <circle cx=${r} cy=${tailEndY} r=${tailDotR} fill=${arrowColor} />
+      </g>
+    </svg>`;
+}
+
+// ═══════════════════════════════════════════════════════════════════
+// CLOUDICON — clouds + sun/moon on a fully transparent background.
+// No rim, no disc. Day/night aware: when elev < 0, the sun is
+// replaced with a phased moon (same logic as SkyScope).
+// ───────────────────────────────────────────────────────────────────
+//   category: 'clear' | 'wispy' | 'scattered' | 'overcast'
+//   elev:     solar elevation in degrees (negative = night)
+//   dt:       Date used for moon phase
+// ═══════════════════════════════════════════════════════════════════
+function CloudIcon({ category, size = 30, elev = 90, dt = new Date() }) {
+  const r = size / 2;
+  const u = r;     // half-extent for layout
+  const isNight = elev < -3;
+  // Phased moon helper — returns an SVG <g> with the moon + shadow.
+  // Lit fraction direction matches SkyScope (waxing = lit from right).
+  const renderMoon = (cx, cy, moonR) => {
+    const phase = moonPhaseFraction(dt);
+    const phaseOffset = Math.cos(2 * Math.PI * phase) * moonR;
+    const moonLitFromRight = phase < 0.5;
+    const shadowCx = cx + (moonLitFromRight ? -phaseOffset : phaseOffset);
+    const clipId = `cmoon-${size}-${Math.round(cx)}-${Math.round(cy)}-${Math.round(phase * 1000)}`;
+    return html`
+      <g>
+        <defs>
+          <clipPath id=${clipId}>
+            <circle cx=${cx} cy=${cy} r=${moonR} />
+          </clipPath>
+        </defs>
+        <circle cx=${cx} cy=${cy} r=${moonR} fill="#f5edd6" stroke="#9a8c6a" stroke-width="0.4" />
+        <circle cx=${shadowCx} cy=${cy} r=${moonR} fill="#2a2438" clip-path=${`url(#${clipId})`} />
+        <circle cx=${cx} cy=${cy} r=${moonR} fill="none" stroke="#9a8c6a" stroke-width="0.4" />
+      </g>`;
+  };
+  return html`
+    <svg width=${size} height=${size} viewBox=${`0 0 ${size} ${size}`}
+         style=${{ flexShrink: 0, display: 'inline-block', verticalAlign: 'middle', overflow: 'visible' }}>
+      ${category === 'clear' && (isNight
+        ? html`<!-- clear night: phased moon, no rays -->
+          ${renderMoon(r, r, u*0.50)}`
+        : html`<!-- clear day: bright sun with rays -->
+          <g>
+            ${[0,45,90,135,180,225,270,315].map(a => {
+              const x1 = r + Math.sin(a*Math.PI/180) * u*0.65;
+              const y1 = r - Math.cos(a*Math.PI/180) * u*0.65;
+              const x2 = r + Math.sin(a*Math.PI/180) * u*0.95;
+              const y2 = r - Math.cos(a*Math.PI/180) * u*0.95;
+              return html`<line key=${a} x1=${x1} y1=${y1} x2=${x2} y2=${y2}
+                                stroke="#e6a32a" stroke-width=${Math.max(1, size*0.05)}
+                                stroke-linecap="round" />`;
+            })}
+            <circle cx=${r} cy=${r} r=${u*0.45} fill="#ffd84a" stroke="#e6a32a" stroke-width="0.6" />
+          </g>`)}
+      ${category === 'wispy' && html`
+        <!-- sun OR moon with thin cirrus streaks across it -->
+        ${isNight
+          ? renderMoon(r, r*0.95, u*0.42)
+          : html`<circle cx=${r} cy=${r*0.95} r=${u*0.42} fill="#ffd84a" stroke="#e6a32a" stroke-width="0.6" />`}
+        <path d=${`M ${r-u*0.95} ${r*0.85} Q ${r} ${r*0.65} ${r+u*0.95} ${r*0.95}`}
+              stroke=${isNight ? '#cfd6dd' : '#ffffff'} stroke-width=${Math.max(1.4, size*0.07)}
+              fill="none" stroke-linecap="round" opacity="0.92" />
+        <path d=${`M ${r-u*0.75} ${r*1.25} Q ${r} ${r*1.08} ${r+u*0.85} ${r*1.30}`}
+              stroke=${isNight ? '#b8c0c8' : '#e6ebf0'} stroke-width=${Math.max(1.1, size*0.055)}
+              fill="none" stroke-linecap="round" opacity="0.85" />`}
+      ${category === 'scattered' && html`
+        <!-- sun OR moon behind a fluffy cumulus cloud -->
+        ${isNight
+          ? renderMoon(r+u*0.45, r-u*0.40, u*0.32)
+          : html`<circle cx=${r+u*0.45} cy=${r-u*0.40} r=${u*0.34} fill="#ffd84a" stroke="#e6a32a" stroke-width="0.6" />`}
+        <g fill=${isNight ? '#b8c0c8' : '#ffffff'} stroke=${isNight ? '#5a6470' : '#8a96a4'} stroke-width="0.6" stroke-linejoin="round">
+          <ellipse cx=${r-u*0.35} cy=${r+u*0.10} rx=${u*0.50} ry=${u*0.30} />
+          <ellipse cx=${r+u*0.10} cy=${r-u*0.05} rx=${u*0.46} ry=${u*0.36} />
+          <ellipse cx=${r+u*0.40} cy=${r+u*0.20} rx=${u*0.44} ry=${u*0.28} />
+          <!-- flat-ish base, soft underneath -->
+          <rect x=${r-u*0.75} y=${r+u*0.18} width=${u*1.55} height=${u*0.20} rx=${u*0.10} />
+        </g>`}
+      ${category === 'overcast' && html`
+        <!-- thick layered stratus, no sun OR moon (would be hidden anyway) -->
+        <g fill=${isNight ? '#7a828c' : '#d8dee5'} stroke=${isNight ? '#3a424c' : '#6e7a88'} stroke-width="0.7" stroke-linejoin="round">
+          <ellipse cx=${r-u*0.40} cy=${r-u*0.20} rx=${u*0.55} ry=${u*0.32} />
+          <ellipse cx=${r+u*0.20} cy=${r-u*0.40} rx=${u*0.48} ry=${u*0.30} />
+          <ellipse cx=${r+u*0.40} cy=${r+u*0.10} rx=${u*0.55} ry=${u*0.34} />
+          <ellipse cx=${r-u*0.10} cy=${r+u*0.30} rx=${u*0.60} ry=${u*0.32} />
+        </g>`}
+    </svg>`;
+}
+
 // ═══════════════════════════════════════════════════════════════════
 // SCOPERETICLE — the big circular UTCI dial in the page header.
 // ───────────────────────────────────────────────────────────────────
@@ -467,26 +712,27 @@ function SkyScope({ elev, dt, size = 22 }) {
 //                       widen the dial range by changing those numbers
 // ═══════════════════════════════════════════════════════════════════
 function ScopeReticle({ value, cat, loading, elev = 0, dt = new Date() }) {
-  // ── Day/night indicator (new) ──────────────────────────────────────
+  // ── Day/night scene behind the readout ─────────────────────────────
-  // The sun-or-moon glyph orbits the dial like an hour hand:
+  // The whole back of the lens is a SkyScope-style scene: sky on top,
-  //   12 o'clock = noon  ·  3 o'clock = morning (east/sunrise)
+  // grass on the bottom, sun positioned by elevation (or moon at night
-  //    6 o'clock = midnight  ·  9 o'clock = evening (west/sunset)
+  // with its phase shadow). Mirrors the little hourly SkyScopes.
-  // A subtle sky-colour wash sits behind the readout for atmosphere.
+  const cx = 100, cy = 100, R = 86;
-  const hour = dt.getHours() + dt.getMinutes() / 60;
-  const orbitAngle = -((hour - 6) / 24) * 2 * Math.PI;   // radians
-  const orbitR = 80;                                     // outside the temperature arcs, riding the tick band
-  const dnX = 100 + orbitR * Math.cos(orbitAngle);
-  const dnY = 100 + orbitR * Math.sin(orbitAngle);
   const isDay = elev > -3;
   const skyFill = skyFillForElev(elev);
+  const grass = grassFillForElev(elev);
   const phase = moonPhaseFraction(dt);
-  // For the moon, use the same shadow-ellipse technique as SkyScope.
+  const lensR = 95;                                       // full back of the dial
-  const moonR = 6;                                       // slightly smaller so it fits the outer tick band
+  const elevClamped = Math.max(-30, Math.min(90, elev));
-  const phaseOffset = Math.cos(2 * Math.PI * phase) * moonR;
+  const sunY = cy - Math.sin((elevClamped * Math.PI) / 180) * (lensR - 18);
+  const sunDrawR = 14;
+  const moonDrawR = 15;
+  const moonY = cy - 45;                                  // float in the upper sky, away from the readout
+  const phaseOffset = Math.cos(2 * Math.PI * phase) * moonDrawR;
   const moonLitFromRight = phase < 0.5;
-  const moonShadowCx = dnX + (moonLitFromRight ? -phaseOffset : phaseOffset);
+  const moonShadowCx = cx + (moonLitFromRight ? -phaseOffset : phaseOffset);
-
+  // Readout text colours flip with day/night for legibility against the sky.
-  const cx = 100, cy = 100, R = 86;
+  const readoutColor = isDay ? '#1e1208' : '#f5edd6';
+  const readoutMutedColor = isDay ? '#9a7d5a' : '#d4c5a8';
   const ticks = Array.from({ length: 36 }, (_, i) => {
     const deg = i * 10 - 90;
     const rad = (deg * Math.PI) / 180;
@@ -541,14 +787,35 @@ function ScopeReticle({ value, cat, loading, elev = 0, dt = new Date() }) {
           <stop offset="0%" stop-color=${glowColor} stop-opacity="0.12" />
           <stop offset="100%" stop-color=${glowColor} stop-opacity="0" />
         </radialGradient>
+        <clipPath id="scope-lens-clip">
+          <circle cx=${cx} cy=${cy} r=${lensR} />
+        </clipPath>
+        <linearGradient id="scope-lens-grass" x1="0" y1="0" x2="0" y2="1">
+          <stop offset="0%" stop-color=${grass.top} />
+          <stop offset="100%" stop-color=${grass.bot} />
+        </linearGradient>
       </defs>
       <circle cx=${cx} cy=${cy} r="96" fill="url(#scope-bg-glow)" />
 
-      <!-- Sky-colour wash behind the readout (very subtle) -->
+      <!-- Full sky + grass + sun/moon scene behind the readout -->
-      <circle cx=${cx} cy=${cy} r="58" fill=${skyFill} opacity="0.16" />
+      <g clip-path="url(#scope-lens-clip)">
+        <circle cx=${cx} cy=${cy} r=${lensR} fill=${skyFill} />
+        <path d=${`M ${cx - lensR} ${cy} A ${lensR} ${lensR} 0 0 0 ${cx + lensR} ${cy} Z`}
+              fill="url(#scope-lens-grass)" />
+        ${isDay
+          ? html`<${Fragment}>
+              <circle cx=${cx} cy=${sunY} r=${sunDrawR + 4} fill="#ffe9a0" opacity="0.55" />
+              <circle cx=${cx} cy=${sunY} r=${sunDrawR} fill="#fff3a8" stroke="#e6a32a" stroke-width="0.8" />
+            </>`
+          : html`<${Fragment}>
+              <circle cx=${cx} cy=${moonY} r=${moonDrawR} fill="#f5edd6" />
+              <circle cx=${moonShadowCx} cy=${moonY} r=${moonDrawR} fill=${skyFill} />
+              <circle cx=${cx} cy=${moonY} r=${moonDrawR} fill="none" stroke="rgba(245,237,214,0.55)" stroke-width="0.7" />
+            </>`}
+      </g>
       ${stressBands.map((b, i) => html`
         <path key=${i} d=${bandArcPath(b)} fill="none"
-              stroke=${b.color} stroke-width="4" opacity="0.4" stroke-linecap="butt" />`)}
+              stroke=${b.color} stroke-width="4" stroke-linecap="butt" />`)}
       <circle cx=${cx} cy=${cy} r=${R} fill="none" stroke="#c9b08a" stroke-width="1.5" />
       ${ticks.map((t, i) => html`
         <line key=${i} x1=${t.x1} y1=${t.y1} x2=${t.x2} y2=${t.y2}
@@ -561,18 +828,6 @@ function ScopeReticle({ value, cat, loading, elev = 0, dt = new Date() }) {
       <circle cx=${cx} cy=${cy} r="58" fill="none" stroke="#e8d8c0" stroke-width="0.75" />
       <circle cx=${cx} cy=${cy} r="32" fill="none" stroke="#e8d8c0" stroke-width="0.5" />
 
-      <!-- Day/night glyph orbiting the dial -->
-      ${isDay
-        ? html`<${Fragment}>
-            <circle cx=${dnX} cy=${dnY} r="9" fill="#ffe9a0" opacity="0.55" />
-            <circle cx=${dnX} cy=${dnY} r="6" fill="#fff3a8" stroke="#e6a32a" stroke-width="0.8" />
-          </>`
-        : html`<${Fragment}>
-            <circle cx=${dnX} cy=${dnY} r=${moonR + 1.2} fill="rgba(60,50,90,0.35)" />
-            <circle cx=${dnX} cy=${dnY} r=${moonR} fill="#f5edd6" />
-            <circle cx=${moonShadowCx} cy=${dnY} r=${moonR} fill="#1a1538" />
-            <circle cx=${dnX} cy=${dnY} r=${moonR} fill="none" stroke="rgba(245,237,214,0.55)" stroke-width="0.5" />
-          </>`}
       ${[[-1,-1],[1,-1],[-1,1],[1,1]].map(([sx, sy], i) => html`
         <g key=${i}>
           <line x1=${cx + sx*72} y1=${cy + sy*72} x2=${cx + sx*60} y2=${cy + sy*72}
@@ -583,24 +838,24 @@ function ScopeReticle({ value, cat, loading, elev = 0, dt = new Date() }) {
       ${value != null && html`
         <${Fragment}>
           <line x1=${cx} y1=${cy} x2=${needleX} y2=${needleY}
-                stroke="#c8922a" stroke-width="3" stroke-linecap="round" opacity="0.18" />
+                stroke="#c8922a" stroke-width="5" stroke-linecap="round" opacity="0.18" />
           <line x1=${cx} y1=${cy} x2=${needleX} y2=${needleY}
-                stroke="#c8922a" stroke-width="1.5" stroke-linecap="round" opacity="0.95" />
+                stroke="#c8922a" stroke-width="2.5" stroke-linecap="round" opacity="0.95" />
         </>`}
       <circle cx=${cx} cy=${cy} r="5.5" fill="#f5edd6" stroke="#c8922a" stroke-width="1.5" />
       <circle cx=${cx} cy=${cy} r="2.5" fill="#c8922a" />
       ${loading
         ? html`<text x=${cx} y=${cy + 5} text-anchor="middle"
-                     fill="#b09870" font-size="11" font-family="monospace">· · ·</text>`
+                     fill=${readoutMutedColor} font-size="11" font-family="monospace">· · ·</text>`
         : value != null
           ? html`<${Fragment}>
-              <text x=${cx} y=${cy - 8} text-anchor="middle"
+              <text x=${cx} y="152" text-anchor="middle"
-                    fill="#1e1208" font-size="26"
+                    fill=${readoutColor} font-size="26"
                     font-family="Fraunces, serif" font-weight="700">
                 ${value.toFixed(1)}°
               </text>
               <text x=${cx} y=${cy + 7} text-anchor="middle"
-                    fill="#9a7d5a" font-size="6.5"
+                    fill=${readoutMutedColor} font-size="6.5"
                     font-family="JetBrains Mono, monospace" letter-spacing="2">
                 UTCI NOW
               </text>
@@ -611,7 +866,7 @@ function ScopeReticle({ value, cat, loading, elev = 0, dt = new Date() }) {
               </text>
             </>`
           : html`<text x=${cx} y=${cy + 5} text-anchor="middle"
-                       fill="#b09870" font-size="8"
+                       fill=${readoutMutedColor} font-size="8"
                        font-family="JetBrains Mono, monospace" letter-spacing="1.2">
                    AWAITING
                  </text>`}
@@ -656,6 +911,55 @@ function UTCIForecast() {
   const [selectedDay, setSelectedDay]   = useState(0);      // which day tab is active
   const [proPromptDay, setProPromptDay] = useState(null);   // locked day clicked → show upsell card
 
+  // Day-tabs horizontal scrolling — chevrons show only when there's more
+  // content to reveal in that direction. Auto-scrolls active tab into view.
+  const dayTabsRef = useRef(null);
+  const [canScrollLeft, setCanScrollLeft] = useState(false);
+  const [canScrollRight, setCanScrollRight] = useState(false);
+  // Re-runs whenever the number of day tabs changes (e.g. when the
+  // forecast finishes loading and the tabs first appear). Also re-measures
+  // on scroll, on window resize, and via ResizeObserver if the element's
+  // own width changes (e.g. layout shifts when sidebar opens).
+  useEffect(() => {
+    const el = dayTabsRef.current;
+    if (!el) return;
+    const update = () => {
+      setCanScrollLeft(el.scrollLeft > 1);
+      setCanScrollRight(el.scrollLeft + el.clientWidth < el.scrollWidth - 1);
+    };
+    update();
+    el.addEventListener('scroll', update, { passive: true });
+    window.addEventListener('resize', update);
+    let ro = null;
+    if (typeof ResizeObserver !== 'undefined') {
+      ro = new ResizeObserver(update);
+      ro.observe(el);
+    }
+    return () => {
+      el.removeEventListener('scroll', update);
+      window.removeEventListener('resize', update);
+      if (ro) ro.disconnect();
+    };
+  }, [forecast]);
+  useEffect(() => {
+    const el = dayTabsRef.current;
+    if (!el) return;
+    const activeTab = el.querySelector('.utci-day-tab.active');
+    if (!activeTab) return;
+    const elRect = el.getBoundingClientRect();
+    const tabRect = activeTab.getBoundingClientRect();
+    if (tabRect.left < elRect.left + 8) {
+      el.scrollBy({ left: tabRect.left - elRect.left - 24, behavior: 'smooth' });
+    } else if (tabRect.right > elRect.right - 8) {
+      el.scrollBy({ left: tabRect.right - elRect.right + 24, behavior: 'smooth' });
+    }
+  }, [selectedDay]);
+  const scrollDayTabs = (dir) => {
+    const el = dayTabsRef.current;
+    if (!el) return;
+    el.scrollBy({ left: dir * 200, behavior: 'smooth' });
+  };
+
   // ─── PRO TIER STUB ────────────────────────────────────────────────────
   // FLIP THE `false` BELOW TO `true` TO PREVIEW THE PRO EXPERIENCE.
   // When this is wired to real billing/auth, replace `useState(false)`
@@ -670,14 +974,118 @@ function UTCIForecast() {
   // true  = visible on first load (and the only ones free users see)
   // false = hidden by default (Pro users can toggle these on)
   const [visibleCols, setVisibleCols] = useState({
-    hour: true, air: true, rh: true, wind: true,
+    hour: true, air: true, rh: true, dew: true,
+    wind: true, dir: true,
     cloud: false, sun: false, direct: false, diffuse: false,
-    tmrt: false, delta: false, utci: false, utciP: true,
+    tmrt: false, delta: false, utci: false,
-    precip: true,
+    uvA: false, uvB: false, burn: false,
+    utciP: true, precip: true,
+    soilT: false, soilT6: false, soilM: false,
   });
   const toggleCol = (col) => setVisibleCols(prev => ({ ...prev, [col]: !prev[col] }));
+
+  // Skin type for the sunburn-time column. Fitzpatrick II is typical UK fair.
+  const [skinType, setSkinType] = useState('II');
   const searchTimeout = useRef(null);
 
+  // Refs for the two-scroller table layout (sticky-to-viewport header +
+  // horizontally-scrolling body). The header is clipped (overflow:hidden)
+  // and its inner "track" gets translateX'd via JS to follow the body's
+  // scrollLeft. See the useLayoutEffect just below where the JS sync
+  // happens, and the .utci-thead-sticky / .utci-tbody-scroll CSS rules.
+  const headStickyRef = useRef(null);
+  const headTrackRef  = useRef(null);
+  const headTableRef  = useRef(null);
+  const bodyScrollRef = useRef(null);
+  const bodyTableRef  = useRef(null);
+
+  // ─── TABLE SCROLL SYNC ───────────────────────────────────────────────
+  // The hourly table is rendered as two stacked scroll areas:
+  //   • Sticky header strip (locked to viewport top, clipped)
+  //   • Body scroller (overflow-x: auto — owns the horizontal scrollbar)
+  // We need to (a) keep the header track shifted horizontally to match
+  // the body's scrollLeft, and (b) keep the header cells the same pixel
+  // width as the body cells even as columns toggle or the window resizes.
+  // ─────────────────────────────────────────────────────────────────────
+  const handleBodyScroll = () => {
+    const track = headTrackRef.current;
+    const body  = bodyScrollRef.current;
+    if (!track || !body) return;
+    track.style.transform = `translate3d(${-body.scrollLeft}px, 0, 0)`;
+  };
+
+  useLayoutEffect(() => {
+    // Synchronise the head and body table column widths.
+    // Each column is sized to max(60px, header's natural width, body's
+    // natural width) so neither header labels nor body data ever feel
+    // squashed, and header text never overflows into the next column.
+    const MIN_COL = 60;
+    const sync = () => {
+      const headTable = headTableRef.current;
+      const bodyTable = bodyTableRef.current;
+      if (!headTable || !bodyTable) return;
+      const bodyRow = bodyTable.querySelector('tbody tr');
+      const headRow = headTable.querySelector('thead tr');
+      if (!bodyRow || !headRow) return;
+      const headCells = Array.from(headRow.children);
+      const bodyCells = Array.from(bodyRow.children);
+      const n = Math.min(headCells.length, bodyCells.length);
+      // Step 1: clear any previously-forced widths so we can read each
+      // cell's *natural* width (the width it'd take with just min-width
+      // and content driving it).
+      headCells.forEach(c => {
+        c.style.width = '';
+        c.style.minWidth = '';
+        c.style.maxWidth = '';
+      });
+      bodyCells.forEach(c => {
+        c.style.width = '';
+        c.style.minWidth = '';
+        c.style.maxWidth = '';
+      });
+      headTable.style.width = '';
+      // Reading getBoundingClientRect forces layout — that's what we want.
+      // Step 2: compute final widths as max(MIN_COL, headNatural, bodyNatural).
+      const finalW = new Array(n);
+      let totalWidth = 0;
+      for (let i = 0; i < n; i++) {
+        const headW = headCells[i].getBoundingClientRect().width;
+        const bodyW = bodyCells[i].getBoundingClientRect().width;
+        const w = Math.max(MIN_COL, Math.ceil(headW), Math.ceil(bodyW));
+        finalW[i] = w;
+        totalWidth += w;
+      }
+      // Step 3: apply the final width to both head and body cells.
+      for (let i = 0; i < n; i++) {
+        const px = `${finalW[i]}px`;
+        headCells[i].style.width    = px;
+        headCells[i].style.minWidth = px;
+        headCells[i].style.maxWidth = px;
+        bodyCells[i].style.width    = px;
+        bodyCells[i].style.minWidth = px;
+        bodyCells[i].style.maxWidth = px;
+      }
+      // Make the header table the same total width as the body table
+      // so the inner track has somewhere to translate to.
+      headTable.style.width = `${totalWidth}px`;
+      // Re-apply current horizontal offset so column alignment survives.
+      handleBodyScroll();
+    };
+    // Run once after layout
+    sync();
+    // Re-sync if the body table reflows (columns toggle, content changes)
+    let ro = null;
+    if (typeof ResizeObserver !== 'undefined' && bodyTableRef.current) {
+      ro = new ResizeObserver(sync);
+      ro.observe(bodyTableRef.current);
+    }
+    window.addEventListener('resize', sync);
+    return () => {
+      if (ro) ro.disconnect();
+      window.removeEventListener('resize', sync);
+    };
+  }, [forecast, visibleCols, selectedDay, skinType]);
+
   // Geocoding search
   useEffect(() => {
     if (searchQuery.length < 2) { setSearchResults([]); return; }
@@ -708,9 +1116,12 @@ function UTCIForecast() {
         const url =
           `https://api.open-meteo.com/v1/forecast` +
           `?latitude=${location.lat}&longitude=${location.lon}` +
-          `&hourly=temperature_2m,relative_humidity_2m,wind_speed_10m,` +
+          `&hourly=temperature_2m,relative_humidity_2m,dew_point_2m,` +
-          `direct_radiation,diffuse_radiation,shortwave_radiation,cloud_cover,` +
+          `wind_speed_10m,wind_direction_10m,wind_gusts_10m,` +
-          `precipitation,snowfall` +
+          `direct_radiation,diffuse_radiation,shortwave_radiation,` +
+          `cloud_cover,cloud_cover_low,cloud_cover_mid,cloud_cover_high,` +
+          `uv_index,precipitation,snowfall,` +
+          `soil_temperature_0cm,soil_temperature_6cm,soil_moisture_0_to_1cm` +
           `&wind_speed_unit=ms&timezone=auto&forecast_days=14`;
         const r = await fetch(url);
         if (!r.ok) throw new Error(`Open-Meteo HTTP ${r.status}`);
@@ -726,22 +1137,44 @@ function UTCIForecast() {
   // calculating UTCI + soak-factor for each row. This is what gets
   // displayed in the table.
   const hourlyRows = forecast ? forecast.hourly.time.map((iso, i) => {
-    const Ta   = forecast.hourly.temperature_2m[i];
+    const h = forecast.hourly;
-    const RH   = forecast.hourly.relative_humidity_2m[i];
+    const Ta   = h.temperature_2m[i];
-    const va   = forecast.hourly.wind_speed_10m[i];
+    const RH   = h.relative_humidity_2m[i];
-    const dir  = forecast.hourly.direct_radiation[i] || 0;
+    const dew  = h.dew_point_2m ? h.dew_point_2m[i] : null;
-    const dif  = forecast.hourly.diffuse_radiation[i] || 0;
+    const va   = h.wind_speed_10m[i];
-    const glob = forecast.hourly.shortwave_radiation[i] || 0;
+    const wd   = h.wind_direction_10m ? h.wind_direction_10m[i] : null;
-    const cc     = forecast.hourly.cloud_cover[i];
+    const gust = h.wind_gusts_10m    ? h.wind_gusts_10m[i]    : null;
-    const precip = forecast.hourly.precipitation[i] || 0;
+    const dir  = h.direct_radiation[i]    || 0;
-    const snow   = forecast.hourly.snowfall[i] || 0;
+    const dif  = h.diffuse_radiation[i]   || 0;
+    const glob = h.shortwave_radiation[i] || 0;
+    const cc     = h.cloud_cover[i];
+    const ccLow  = h.cloud_cover_low  ? h.cloud_cover_low[i]  : null;
+    const ccMid  = h.cloud_cover_mid  ? h.cloud_cover_mid[i]  : null;
+    const ccHigh = h.cloud_cover_high ? h.cloud_cover_high[i] : null;
+    const uv     = h.uv_index ? (h.uv_index[i] || 0) : 0;
+    const precip = h.precipitation[i] || 0;
+    const snow   = h.snowfall[i] || 0;
+    const soilT0 = h.soil_temperature_0cm    ? h.soil_temperature_0cm[i]    : null;
+    const soilT6 = h.soil_temperature_6cm    ? h.soil_temperature_6cm[i]    : null;
+    const soilM  = h.soil_moisture_0_to_1cm  ? h.soil_moisture_0_to_1cm[i]  : null;
     const dt   = new Date(iso);
     const elev = solarElevationDeg(location.lat, location.lon, dt);
     const eh   = vaporPressureHpa(Ta, RH);
     const Tmrt = calcTmrt(Ta, dir, dif, glob, elev);
     const utci = utciApprox(Ta, Tmrt, va, eh);
     const utciAdj = utci + precipPenalty(precip, snow, va);
-    return { iso, dt, Ta, RH, va, dir, dif, glob, cc, precip, snow, elev, Tmrt, utci, utciAdj, eh };
+    // Derived
+    const compass = windCompass8(wd);
+    const { uvA, uvB } = uvSplit(uv, elev);
+    const cloudCat = cloudCategory(cc, ccLow, ccMid, ccHigh);
+    return {
+      iso, dt, Ta, RH, dew, va, wd, gust, dir, dif, glob,
+      cc, ccLow, ccMid, ccHigh, cloudCat,
+      uv, uvA, uvB,
+      precip, snow,
+      soilT0, soilT6, soilM,
+      elev, Tmrt, utci, utciAdj, eh, compass,
+    };
   }) : [];
 
   // Group those hourly rows into days for the day tabs.
@@ -870,7 +1303,18 @@ function UTCIForecast() {
               behaviour (e.g. open a paywall modal instead of doing
               nothing), edit the onClick handler below.
             -->
-            <div class="utci-day-tabs">
+            <div class=${`utci-day-tabs-wrap${canScrollLeft ? ' fade-left' : ''}${canScrollRight ? ' fade-right' : ''}`}>
+              <button
+                class=${`utci-day-scroll left${canScrollLeft ? '' : ' hidden'}`}
+                onClick=${() => scrollDayTabs(-1)}
+                aria-label="Scroll days left"
+                type="button">‹</button>
+              <button
+                class=${`utci-day-scroll right${canScrollRight ? '' : ' hidden'}`}
+                onClick=${() => scrollDayTabs(1)}
+                aria-label="Scroll days right"
+                type="button">›</button>
+            <div class="utci-day-tabs" ref=${dayTabsRef}>
               ${days.map((d, i) => {
                 const band = confidenceBand(i);
                 const locked = !isPro && i >= FREE_DAYS;
@@ -914,6 +1358,7 @@ function UTCIForecast() {
                   </button>`;
               })}
             </div>
+            </div>
 
             <!--
               PRO UPSELL CARD — shown when a locked day is clicked.
@@ -1058,7 +1503,12 @@ function UTCIForecast() {
                     { key: 'hour',    label: 'Hour' },
                     { key: 'air',     label: 'Air' },
                     { key: 'rh',      label: 'RH' },
+                    { key: 'dew',     label: 'Dew' },
+                    { key: 'soilT',   label: 'Soil °C' },
+                    { key: 'soilT6',  label: 'Soil 6cm' },
+                    { key: 'soilM',   label: 'Soil moist' },
                     { key: 'wind',    label: 'Wind' },
+                    { key: 'dir',     label: 'Dir' },
                     { key: 'cloud',   label: 'Cloud' },
                     { key: 'sun',     label: 'Sun' },
                     { key: 'direct',  label: 'Direct' },
@@ -1066,6 +1516,9 @@ function UTCIForecast() {
                     { key: 'tmrt',    label: 'Tmrt' },
                     { key: 'delta',   label: 'Δ' },
                     { key: 'utci',    label: 'UTCI' },
+                    { key: 'uvA',     label: 'UV-A' },
+                    { key: 'uvB',     label: 'UV-B' },
+                    { key: 'burn',    label: 'Burn' },
                     { key: 'precip',  label: 'Precip' },
                     { key: 'utciP',   label: 'UTCI+P' },
                   ].map(c => html`
@@ -1074,6 +1527,17 @@ function UTCIForecast() {
                       class=${`col-toggle${visibleCols[c.key] ? ' on' : ''}`}
                       onClick=${() => toggleCol(c.key)}
                     >${c.label}</button>`)}
+                  ${visibleCols.burn && html`
+                    <span style=${{ marginLeft: '10px', display: 'inline-flex', alignItems: 'center', gap: '6px', fontFamily: 'JetBrains Mono, monospace', fontSize: '10px', textTransform: 'uppercase', letterSpacing: '0.08em', color: '#9a7d5a' }}>
+                      Skin
+                      <select
+                        value=${skinType}
+                        onChange=${(e) => setSkinType(e.target.value)}
+                        style=${{ background: '#2a1f12', color: '#ede4cc', border: '1px solid #5a4228', borderRadius: '3px', padding: '2px 4px', fontFamily: 'JetBrains Mono, monospace', fontSize: '10px' }}>
+                        ${Object.entries(SKIN_TYPES).map(([k, v]) => html`
+                          <option key=${k} value=${k}>${v.name}</option>`)}
+                      </select>
+                    </span>`}
                 </div>`
               : html`
                 <div class="col-toggles" style=${{ opacity: 0.85 }}>
@@ -1091,13 +1555,24 @@ function UTCIForecast() {
               heading, edit the text inside the matching <th>.
             -->
             <div class="utci-table-wrap">
-              <table class="utci-table">
+              <!-- Sticky header strip — locks to viewport top. Clipped
-                <thead>
+                   horizontally; the inner .utci-thead-track is shifted
-                  <tr>
+                   via translateX from JS to follow the body's scrollLeft.
+                   See handleBodyScroll + useLayoutEffect above. -->
+              <div class="utci-thead-sticky" ref=${headStickyRef}>
+                <div class="utci-thead-track" ref=${headTrackRef}>
+                  <table class="utci-table utci-table-head" ref=${headTableRef}>
+                    <thead>
+                      <tr>
                     ${visibleCols.hour    && html`<th>Hour</th>`}
                     ${visibleCols.air     && html`<th>Air <span class="col-unit">°C</span></th>`}
                     ${visibleCols.rh      && html`<th>RH <span class="col-unit">%</span></th>`}
-                    ${visibleCols.wind    && html`<th>Wind <span class="col-unit">m/s</span></th>`}
+                    ${visibleCols.dew     && html`<th>Dew <span class="col-unit">°C</span></th>`}
+                    ${visibleCols.soilT   && html`<th>Soil °C <span class="col-unit">surface</span></th>`}
+                    ${visibleCols.soilT6  && html`<th>Soil 6cm <span class="col-unit">°C root</span></th>`}
+                    ${visibleCols.soilM   && html`<th>Soil moist <span class="col-unit">m³/m³</span></th>`}
+                    ${visibleCols.wind    && html`<th>Wind <span class="col-unit">m/s (gust)</span></th>`}
+                    ${visibleCols.dir     && html`<th>Dir <span class="col-unit">compass</span></th>`}
                     ${visibleCols.cloud   && html`<th>Cloud <span class="col-unit">%</span></th>`}
                     ${visibleCols.sun     && html`<th>Sun <span class="col-unit">elev°</span></th>`}
                     ${visibleCols.direct  && html`<th>Direct <span class="col-unit">W/m²</span></th>`}
@@ -1105,11 +1580,22 @@ function UTCIForecast() {
                     ${visibleCols.tmrt    && html`<th>Tmrt <span class="col-unit">°C</span></th>`}
                     ${visibleCols.delta   && html`<th>Δ <span class="col-unit">UTCI−Air</span></th>`}
                     ${visibleCols.utci    && html`<th>UTCI <span class="col-unit">°C felt</span></th>`}
+                    ${visibleCols.uvA     && html`<th>UV-A <span class="col-unit">est. idx</span></th>`}
+                    ${visibleCols.uvB     && html`<th>UV-B <span class="col-unit">est. idx</span></th>`}
+                    ${visibleCols.burn    && html`<th>Burn <span class="col-unit">to MED</span></th>`}
                     ${visibleCols.precip  && html`<th>Precip <span class="col-unit">mm/h</span></th>`}
                     ${visibleCols.utciP   && html`<th>UTCI+P <span class="col-unit">°C adj.</span></th>`}
                   </tr>
-                </thead>
+                    </thead>
-                <tbody>
+                  </table>
+                </div>
+              </div>
+              <!-- Body scroller — owns the horizontal scrollbar. The
+                   onScroll handler translates the header track to keep
+                   columns aligned with the visible body columns. -->
+              <div class="utci-tbody-scroll" ref=${bodyScrollRef} onScroll=${handleBodyScroll}>
+                <table class="utci-table utci-table-body" ref=${bodyTableRef}>
+                  <tbody>
                   ${visible.map((r) => {
                     const cat = utciCategory(r.utci);
                     const isNight = r.elev < 0;
@@ -1125,14 +1611,36 @@ function UTCIForecast() {
                           <td class="utci-time">
                             ${isNow && html`<span class="now-pip"></span>`}
                             <span style=${{ display: 'inline-flex', alignItems: 'center', gap: '7px', verticalAlign: 'middle' }}>
-                              <${SkyScope} elev=${r.elev} dt=${r.dt} size=${22} />
+                              <${SkyScope} elev=${r.elev} dt=${r.dt} size=${30} />
                               <span>${r.dt.toLocaleTimeString('en-GB', { hour: '2-digit', minute: '2-digit' })}</span>
                             </span>
                           </td>`}
                         ${visibleCols.air     && html`<td>${r.Ta.toFixed(1)}</td>`}
                         ${visibleCols.rh      && html`<td>${Math.round(r.RH)}</td>`}
-                        ${visibleCols.wind    && html`<td>${r.va.toFixed(1)}</td>`}
+                        ${visibleCols.dew     && html`<td>${r.dew != null ? r.dew.toFixed(1) : '—'}</td>`}
-                        ${visibleCols.cloud   && html`<td>${Math.round(r.cc)}</td>`}
+                        ${visibleCols.soilT && html`
+                          <td style=${{ color: '#8a6a3a' }}>${r.soilT0 != null ? r.soilT0.toFixed(1) : '—'}</td>`}
+                        ${visibleCols.soilT6 && html`
+                          <td style=${{ color: '#8a6a3a' }}>${r.soilT6 != null ? r.soilT6.toFixed(1) : '—'}</td>`}
+                        ${visibleCols.soilM && html`
+                          <td style=${{ color: '#5090b0' }}>${r.soilM != null ? r.soilM.toFixed(3) : '—'}</td>`}
+                        ${visibleCols.wind    && html`<td>
+                          ${r.va.toFixed(1)}${r.gust != null && r.gust > r.va + 0.5
+                            ? html`<span style=${{ opacity: 0.65, marginLeft: '4px' }}>(${r.gust.toFixed(1)})</span>`
+                            : ''}
+                        </td>`}
+                        ${visibleCols.dir     && html`<td>
+                          <span style=${{ display: 'inline-flex', alignItems: 'center', gap: '6px', verticalAlign: 'middle' }}>
+                            <${WindVane} bearing=${r.wd} size=${28} />
+                            <span style=${{ fontFamily: 'JetBrains Mono, monospace', fontSize: '11px' }}>${r.compass.label}</span>
+                          </span>
+                        </td>`}
+                        ${visibleCols.cloud   && html`<td>
+                          <span style=${{ display: 'inline-flex', alignItems: 'center', gap: '6px', verticalAlign: 'middle' }}>
+                            <${CloudIcon} category=${r.cloudCat} elev=${r.elev} dt=${r.dt} size=${28} />
+                            <span>${Math.round(r.cc)}</span>
+                          </span>
+                        </td>`}
                         ${visibleCols.sun     && html`<td>${r.elev > 0 ? r.elev.toFixed(1) : '—'}</td>`}
                         ${visibleCols.direct  && html`<td>${Math.round(r.dir)}</td>`}
                         ${visibleCols.diffuse && html`<td>${Math.round(r.dif)}</td>`}
@@ -1150,20 +1658,33 @@ function UTCIForecast() {
                               ${r.utci.toFixed(1)}
                             </span>
                           </td>`}
+                        ${visibleCols.uvA && html`
+                          <td style=${{ color: r.uvA > 0 ? '#c8922a' : '#5a4228' }}>
+                            ${r.uvA > 0 ? r.uvA.toFixed(1) : '—'}
+                          </td>`}
+                        ${visibleCols.uvB && html`
+                          <td style=${{ color: r.uvB > 0 ? '#c44a3a' : '#5a4228', fontWeight: 600 }}>
+                            ${r.uvB > 0 ? r.uvB.toFixed(2) : '—'}
+                          </td>`}
+                        ${visibleCols.burn && html`
+                          <td style=${{ color: r.uv > 0 ? (sunburnMinutes(r.uv, skinType) < 30 ? '#c44a3a' : '#c8601a') : '#5a4228' }}>
+                            ${burnLabel(sunburnMinutes(r.uv, skinType))}
+                          </td>`}
                         ${visibleCols.precip && html`
                           <td style=${{ color: r.snow > 0 ? '#6090c8' : r.precip > 0 ? '#5090b0' : '#c0a880' }}>
                             ${r.snow > 0 ? '❅ ' + r.snow.toFixed(1) + 'cm' : r.precip > 0 ? r.precip.toFixed(1) : '—'}
                           </td>`}
                         ${visibleCols.utciP && html`
                           <td style=${{ background: 'rgba(180,215,250,0.10)' }}>
-                            <span class="utci-cell" style=${{ background: adjCat.bg, color: adjCat.fg }}>
+                            <span class="utci-cell utci-cell-hero" style=${{ background: adjCat.bg, color: adjCat.fg }}>
                               ${r.utciAdj.toFixed(1)}
                             </span>
                           </td>`}
                       </tr>`;
                   })}
-                </tbody>
+                  </tbody>
-              </table>
+                </table>
+              </div>
             </div>
 
             <div class="utci-legend">

index.html

@@ -6,10 +6,10 @@
     <meta name="description" content="SunScope - UTCI weather forecast showing real thermal comfort, not just air temperature." />
     <title>SunScope · The True Temperature</title>
     <link rel="icon" type="image/svg+xml" href="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><text y='.9em' font-size='90'>☀️</text></svg>" />
-    <link rel="stylesheet" href="./assets/sunscope.css?v=14d-local9">
+    <link rel="stylesheet" href="./assets/sunscope.css?v=14k">
   </head>
   <body>
     <div id="root"></div>
-    <script type="module" src="./assets/sunscope.js?v=14d-local9"></script>
+    <script type="module" src="./assets/sunscope.js?v=14k"></script>
   </body>
 </html>