diff --git a/.env.example b/.env.example
index 3ab47a9..04d101e 100644
--- a/.env.example
+++ b/.env.example
@@ -12,7 +12,7 @@ TELEGRAM_BOT_TOKEN=
 TELEGRAM_CHAT_ID=
 
 POLL_INTERVAL_MS=60000
-SEGMENT_TIME_SEC=900
+SEGMENT_TIME_SEC=300
 API_DAEMON_PORT=4001
 
 # Signs the panel's login session cookies (frontend). Generate with:
diff --git a/apps/api-daemon/src/env.ts b/apps/api-daemon/src/env.ts
index f0eaf82..ab877c2 100644
--- a/apps/api-daemon/src/env.ts
+++ b/apps/api-daemon/src/env.ts
@@ -4,7 +4,7 @@ export const env = {
   redisUrl: process.env.REDIS_URL ?? "redis://localhost:6379",
   sharedMediaRoot: process.env.SHARED_MEDIA_ROOT ?? "./shared-media",
   pollIntervalMs: Number(process.env.POLL_INTERVAL_MS ?? 60_000),
-  segmentTimeSec: Number(process.env.SEGMENT_TIME_SEC ?? 900),
+  segmentTimeSec: Number(process.env.SEGMENT_TIME_SEC ?? 300),
   port: Number(process.env.API_DAEMON_PORT ?? 4001),
   forceLiveUrl: process.env.FORCE_LIVE_URL ?? "",
   ytdlpPotProviderUrl: process.env.YTDLP_POT_PROVIDER_URL ?? "",
diff --git a/apps/frontend/app/page.tsx b/apps/frontend/app/page.tsx
index 9c99550..05dea3c 100644
--- a/apps/frontend/app/page.tsx
+++ b/apps/frontend/app/page.tsx
@@ -6,8 +6,8 @@ import { formatTr } from "../lib/formatDate";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { Badge } from "@/components/ui/badge";
-import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
-import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/components/ui/table";
+import { Card, CardContent, CardHeader, CardTitle, CardFooter } from "@/components/ui/card";
+import { cn } from "@/lib/utils";
 
 export const dynamic = "force-dynamic";
 
@@ -47,9 +47,9 @@ export default async function DashboardPage() {
       {channels.length === 0 ? (
         <p className="text-sm text-muted-foreground">Henüz kanal eklenmedi.</p>
       ) : (
-        <Card>
-          <CardHeader className="flex-row items-center justify-between">
-            <CardTitle className="text-sm font-medium text-muted-foreground">{channels.length} kanal</CardTitle>
+        <div className="flex flex-col gap-3">
+          <div className="flex items-center justify-between">
+            <span className="text-sm font-medium text-muted-foreground">{channels.length} kanal</span>
             <div className="flex gap-2">
               <form action={toggleAllChannels.bind(null, true)}>
                 <Button type="submit" variant="outline" size="sm">
@@ -62,70 +62,65 @@ export default async function DashboardPage() {
                 </Button>
               </form>
             </div>
-          </CardHeader>
-          <CardContent>
-            <Table>
-              <TableHeader>
-                <TableRow>
-                  <TableHead>Kanal</TableHead>
-                  <TableHead>Durum</TableHead>
-                  <TableHead>Kayıt</TableHead>
-                  <TableHead>Son Kontrol</TableHead>
-                  <TableHead className="text-right">Aksiyon</TableHead>
-                </TableRow>
-              </TableHeader>
-              <TableBody>
-                {channels.map((c) => {
-                  const recording = c.sessions.length > 0;
-                  const status = statuses.get(c.id);
-                  return (
-                    <TableRow key={c.id}>
-                      <TableCell>
-                        <Link href={`/channels/${c.id}`} className="font-medium hover:text-primary hover:underline">
-                          {c.name}
-                        </Link>{" "}
-                        <span className="font-mono-num text-xs text-muted-foreground">{c.youtubeHandle}</span>
-                      </TableCell>
-                      <TableCell>
-                        <Badge variant={c.isActive ? "ok" : "muted"}>{c.isActive ? "Aktif" : "Pasif"}</Badge>
-                      </TableCell>
-                      <TableCell>
-                        <div className="flex items-center gap-1.5">
-                          <Badge variant={recording ? "live" : "muted"}>{recording ? "🔴 Kayıtta" : "—"}</Badge>
-                          {status?.lastPollError && (
-                            <Badge
-                              variant="err"
-                              title={`${formatTr(status.lastPollError.at)} — ${status.lastPollError.message}`}
-                            >
-                              hata
-                            </Badge>
-                          )}
-                        </div>
-                      </TableCell>
-                      <TableCell className="font-mono-num text-xs text-muted-foreground">
-                        {c.lastCheckedAt ? formatTr(c.lastCheckedAt) : "—"}
-                      </TableCell>
-                      <TableCell>
-                        <div className="flex justify-end gap-1.5">
-                          <form action={toggleChannelActive.bind(null, c.id, !c.isActive)}>
-                            <Button type="submit" variant="outline" size="sm">
-                              {c.isActive ? "Duraklat" : "Devam Ettir"}
-                            </Button>
-                          </form>
-                          <form action={checkChannelNow.bind(null, c.id)}>
-                            <Button type="submit" variant="ghost" size="sm">
-                              Şimdi Kontrol Et
-                            </Button>
-                          </form>
-                        </div>
-                      </TableCell>
-                    </TableRow>
-                  );
-                })}
-              </TableBody>
-            </Table>
-          </CardContent>
-        </Card>
+          </div>
+
+          <div className="grid grid-cols-1 gap-4 sm:grid-cols-2 lg:grid-cols-3">
+            {channels.map((c) => {
+              const recording = c.sessions.length > 0;
+              const status = statuses.get(c.id);
+              return (
+                <Card
+                  key={c.id}
+                  className={cn("gap-4 py-5", recording && "border-live/40")}
+                >
+                  <CardHeader className="gap-1 px-5">
+                    <div className="flex items-start justify-between gap-2">
+                      <Link href={`/channels/${c.id}`} className="font-semibold leading-tight hover:text-primary hover:underline">
+                        {c.name}
+                      </Link>
+                      <Badge variant={c.isActive ? "ok" : "muted"} className="shrink-0">
+                        {c.isActive ? "Aktif" : "Pasif"}
+                      </Badge>
+                    </div>
+                    <span className="font-mono-num text-xs text-muted-foreground">{c.youtubeHandle}</span>
+                  </CardHeader>
+
+                  <CardContent className="flex flex-col gap-2 px-5">
+                    <div className="flex flex-wrap items-center gap-1.5">
+                      <Badge variant={recording ? "live" : "muted"}>
+                        {recording ? "🔴 Kayıtta" : "Kayıtta değil"}
+                      </Badge>
+                      {status?.lastPollError && (
+                        <Badge
+                          variant="err"
+                          title={`${formatTr(status.lastPollError.at)} — ${status.lastPollError.message}`}
+                        >
+                          hata
+                        </Badge>
+                      )}
+                    </div>
+                    <span className="font-mono-num text-xs text-muted-foreground">
+                      Son kontrol: {c.lastCheckedAt ? formatTr(c.lastCheckedAt) : "—"}
+                    </span>
+                  </CardContent>
+
+                  <CardFooter className="gap-2 px-5">
+                    <form action={toggleChannelActive.bind(null, c.id, !c.isActive)}>
+                      <Button type="submit" variant="outline" size="sm">
+                        {c.isActive ? "Duraklat" : "Devam Ettir"}
+                      </Button>
+                    </form>
+                    <form action={checkChannelNow.bind(null, c.id)}>
+                      <Button type="submit" variant="ghost" size="sm">
+                        Şimdi Kontrol Et
+                      </Button>
+                    </form>
+                  </CardFooter>
+                </Card>
+              );
+            })}
+          </div>
+        </div>
       )}
     </div>
   );
diff --git a/apps/worker/worker/signal_detection.py b/apps/worker/worker/signal_detection.py
index 2d9a60a..56efbbc 100644
--- a/apps/worker/worker/signal_detection.py
+++ b/apps/worker/worker/signal_detection.py
@@ -17,7 +17,7 @@ WINDOW_SEC = 1.0
 PEAK_STD_MULTIPLIER = 1.5
 CANDIDATE_PAD_SEC = 45
 CHAT_SPIKE_MULTIPLIER = 3
-SEGMENT_TIME_SEC = int(os.environ.get("SEGMENT_TIME_SEC", "900"))
+SEGMENT_TIME_SEC = int(os.environ.get("SEGMENT_TIME_SEC", "300"))
 
 stt_scoring_queue = Queue(QUEUE_NAMES["STT_SCORING"], {"connection": REDIS_URL})
 
diff --git a/docker-compose.yml b/docker-compose.yml
index d156e6a..b71c331 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -33,7 +33,7 @@ services:
       DATABASE_URL: postgresql://streamclipper:streamclipper@sc_postgres:5432/streamclipper
       SHARED_MEDIA_ROOT: /shared-media
       POLL_INTERVAL_MS: ${POLL_INTERVAL_MS:-60000}
-      SEGMENT_TIME_SEC: ${SEGMENT_TIME_SEC:-900}
+      SEGMENT_TIME_SEC: ${SEGMENT_TIME_SEC:-300}
       API_DAEMON_PORT: ${API_DAEMON_PORT:-4001}
       FORCE_LIVE_URL: ${FORCE_LIVE_URL:-}
       TELEGRAM_BOT_TOKEN: ${TELEGRAM_BOT_TOKEN:-}
@@ -61,7 +61,7 @@ services:
       REDIS_URL: redis://sc_redis:6379
       DATABASE_URL: postgresql://streamclipper:streamclipper@sc_postgres:5432/streamclipper
       SHARED_MEDIA_ROOT: /shared-media
-      SEGMENT_TIME_SEC: ${SEGMENT_TIME_SEC:-900}
+      SEGMENT_TIME_SEC: ${SEGMENT_TIME_SEC:-300}
       OPENAI_API_KEY: ${OPENAI_API_KEY:-}
       TELEGRAM_BOT_TOKEN: ${TELEGRAM_BOT_TOKEN:-}
       TELEGRAM_CHAT_ID: ${TELEGRAM_CHAT_ID:-}