diff --git a/dashboard.py b/dashboard.py
index ebf8d5f..73b5881 100644
--- a/dashboard.py
+++ b/dashboard.py
@@ -235,6 +235,7 @@ def get_dashboard_data(db_path=DB_PATH):
   <div class="filter-sep"></div>
   <div class="filter-label">Range</div>
   <div class="range-group">
+    <button class="range-btn" data-range="today" onclick="setRange('today')">Today</button>
     <button class="range-btn" data-range="week" onclick="setRange('week')">This Week</button>
     <button class="range-btn" data-range="month" onclick="setRange('month')">This Month</button>
     <button class="range-btn" data-range="prev-month" onclick="setRange('prev-month')">Prev Month</button>
@@ -481,8 +482,8 @@ def get_dashboard_data(db_path=DB_PATH):
 const MODEL_COLORS = ['#d97757','#4f8ef7','#4ade80','#a78bfa','#fbbf24','#f472b6','#34d399','#60a5fa'];
 
 // ── Time range ─────────────────────────────────────────────────────────────
-const RANGE_LABELS = { 'week': 'This Week', 'month': 'This Month', 'prev-month': 'Previous Month', '7d': 'Last 7 Days', '30d': 'Last 30 Days', '90d': 'Last 90 Days', 'all': 'All Time' };
-const RANGE_TICKS  = { 'week': 7, 'month': 15, 'prev-month': 15, '7d': 7, '30d': 15, '90d': 13, 'all': 12 };
+const RANGE_LABELS = { 'today': 'Today', 'week': 'This Week', 'month': 'This Month', 'prev-month': 'Previous Month', '7d': 'Last 7 Days', '30d': 'Last 30 Days', '90d': 'Last 90 Days', 'all': 'All Time' };
+const RANGE_TICKS  = { 'today': 1, 'week': 7, 'month': 15, 'prev-month': 15, '7d': 7, '30d': 15, '90d': 13, 'all': 12 };
 const VALID_RANGES = Object.keys(RANGE_LABELS);
 
 function rangeIncludesToday(range) {
@@ -498,6 +499,10 @@ def get_dashboard_data(db_path=DB_PATH):
   if (range === 'all') return { start: null, end: null };
   const today = new Date();
   const iso = d => d.toISOString().slice(0, 10);
+  if (range === 'today') {
+    const t = iso(today);
+    return { start: t, end: t };
+  }
   if (range === 'week') {
     const day = today.getDay();
     const diffToMon = day === 0 ? 6 : day - 1;
@@ -742,7 +747,7 @@ def get_dashboard_data(db_path=DB_PATH):
 
   // Hourly aggregation (filtered by model + range, then bucketed by UTC hour)
   const hourlySrc = (rawData.hourly_by_model || []).filter(r =>
-    selectedModels.has(r.model) && (!cutoff || r.day >= cutoff)
+    selectedModels.has(r.model) && (!start || r.day >= start) && (!end || r.day <= end)
   );
   const hourlyAgg = aggregateHourly(hourlySrc, hourlyTZ);
 
@@ -1242,13 +1247,15 @@ def log_message(self, format, *args):
         pass
 
     def do_GET(self):
-        if self.path in ("/", "/index.html"):
+        from urllib.parse import urlparse
+        parsed_path = urlparse(self.path).path
+        if parsed_path in ("/", "/index.html"):
             self.send_response(200)
             self.send_header("Content-Type", "text/html; charset=utf-8")
             self.end_headers()
             self.wfile.write(HTML_TEMPLATE.encode("utf-8"))
 
-        elif self.path == "/api/data":
+        elif parsed_path == "/api/data":
             data = get_dashboard_data()
             body = json.dumps(data).encode("utf-8")
             self.send_response(200)