fix(weather cards): arrowhead needle, matched type sizes, visible rain bars

- details: the wind needle ends in a filled arrowhead instead of a dot,
  so the direction it points (where the wind goes) reads one way only.
- hourly, details, sky: raise each card's share so card.standard reaches
  the same S (72) as now and week. Title and row text now match across
  the five cards (21.6px / 23px), in line with breaktimer and calendar.
  The bands (curve, compass, arc) absorb what is left.
- hourly: band labels follow the band height a little more (capped at the
  row size), so they do not shrink with the taller header.
- hourly: rain-chance bars at half alpha with a minimum height for any
  nonzero chance. Typical chances are a few percent, which scaled honestly
  is a 1px bar that no alpha can rescue.
- now: the condition line sits on the card's foot, so the height the
  capped type leaves over is not an empty strip at the bottom.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 12 insertions, 6 deletions

diff --git a/widgets/details.lua b/widgets/details.lua
index 8b107a9..45f2f3d 100644
--- a/widgets/details.lua
+++ b/widgets/details.lua
@@ -33,14 +33,20 @@ local function draw_compass(cr, x, y, w, h, colors, deg, S)
   -- Open-Meteo gives where the wind comes FROM; the needle points where it goes.
   local a = math.rad(deg + 180)
   local tip = r - size * 2
-  local tx, ty = cx + tip * math.sin(a), cy - tip * math.cos(a)
+  local sa, ca = math.sin(a), math.cos(a)
+  -- A filled arrowhead at the tip, so the needle reads one way only. The shaft
+  -- stops at the head's base: a stroke run to the apex would blunt it.
+  local head, half = r * 0.22, r * 0.11
+  local bx, by = cx + (tip - head) * sa, cy - (tip - head) * ca
   card.rgba(cr, colors.highlight)
   cairo_set_line_width(cr, math.max(2, r * 0.04))
-  cairo_move_to(cr, cx - tip * 0.6 * math.sin(a), cy + tip * 0.6 * math.cos(a))
-  cairo_line_to(cr, tx, ty)
+  cairo_move_to(cr, cx - tip * 0.6 * sa, cy + tip * 0.6 * ca)
+  cairo_line_to(cr, bx, by)
   cairo_stroke(cr)
-  cairo_new_path(cr)
-  cairo_arc(cr, tx, ty, math.max(3, r * 0.06), 0, math.pi * 2)
+  cairo_move_to(cr, cx + tip * sa, cy - tip * ca)
+  cairo_line_to(cr, bx + half * ca, by + half * sa)
+  cairo_line_to(cr, bx - half * ca, by - half * sa)
+  cairo_close_path(cr)
   cairo_fill(cr)
 end
 
@@ -69,7 +75,7 @@ function M.draw(cr, rect, colors)
     { 'AIR (EAQI)', weather.num(aqi), colors[weather.aqi_role(aqi)] },
   }
   local y, S = card.standard(cr, inner, colors, {
-    icon = card.ICON.details, title = 'DETAILS', rows = rows, share = 0.6,
+    icon = card.ICON.details, title = 'DETAILS', rows = rows, share = 0.8,
   })
   draw_compass(cr, inner.x, y, inner.w, inner.y + inner.h - y, colors, c.wind_deg, S)
 end