Add mobile card view for ads listings

src/main/java/apu/saerok_admin/web/view/ad/AdPlacementGroup.java

@@ -16,10 +16,16 @@ public boolean hasPlacements() {
     }
 
     public String fallbackProbabilityLabel() {
+        if (!hasPlacements()) {
+            return "100%";
+        }
         return Math.round(fallbackRatioPercent) + "%";
     }
 
     public boolean hasFallbackProbability() {
+        if (!hasPlacements()) {
+            return true;
+        }
         return fallbackRatioPercent > 0.0;
     }
 }

src/main/resources/static/css/ads.css

@@ -412,6 +412,7 @@
     border-radius: 999px;
     font-size: 0.95rem;
     font-weight: 700;
+    font-variant-numeric: tabular-nums;
     transition: transform 0.2s ease, box-shadow 0.2s ease;
 }
 
@@ -452,6 +453,197 @@
     box-shadow: 0 14px 28px rgba(59, 130, 246, 0.18);
 }
 
+.ads-card-list {
+    display: flex;
+    flex-direction: column;
+    gap: 1rem;
+}
+
+.ads-card-list .list-group-item {
+    border: none;
+    background: transparent;
+}
+
+.ads-card {
+    border: none;
+    background: transparent;
+}
+
+.ads-card__content {
+    display: flex;
+    flex-direction: column;
+    gap: 1rem;
+    padding: 1.25rem;
+    border-radius: 1rem;
+    border: 1px solid rgba(226, 232, 240, 0.7);
+    background: #ffffff;
+    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.12);
+}
+
+.ads-card__header {
+    display: flex;
+    gap: 1rem;
+    align-items: flex-start;
+}
+
+.ads-card__thumb {
+    border-radius: 1rem;
+    overflow: hidden;
+    border: 1px solid rgba(148, 163, 184, 0.35);
+    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.1);
+    background: #ffffff;
+}
+
+.ads-card__thumb--wide {
+    width: 120px;
+}
+
+.ads-card__thumb--wide .ratio {
+    width: 100%;
+}
+
+.ads-card__thumb--square {
+    width: 72px;
+    height: 72px;
+    display: flex;
+}
+
+.ads-card__thumb--square img {
+    width: 100%;
+    height: 100%;
+    object-fit: cover;
+}
+
+.ads-card__thumb-placeholder {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    background: linear-gradient(135deg, rgba(226, 232, 240, 0.6), rgba(148, 163, 184, 0.3));
+    border-style: dashed;
+    border-color: rgba(148, 163, 184, 0.6);
+    color: #94a3b8;
+    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.4);
+}
+
+.ads-card__thumb--wide.ads-card__thumb-placeholder {
+    height: 90px;
+}
+
+.ads-card__thumb--square.ads-card__thumb-placeholder {
+    height: 72px;
+}
+
+.ads-card__thumb-placeholder i {
+    font-size: 1.5rem;
+}
+
+.ads-card__body {
+    display: flex;
+    flex-direction: column;
+    gap: 0.5rem;
+    flex: 1 1 auto;
+}
+
+.ads-card__meta {
+    display: flex;
+    flex-direction: column;
+    gap: 0.35rem;
+}
+
+.ads-card__meta-label,
+.ads-card__metric-label {
+    font-size: 0.75rem;
+    letter-spacing: 0.06em;
+    text-transform: uppercase;
+    color: #64748b;
+    font-weight: 600;
+}
+
+.ads-card__metrics {
+    display: flex;
+    flex-direction: column;
+    gap: 0.75rem;
+}
+
+.ads-card__metric {
+    display: flex;
+    flex-direction: column;
+    gap: 0.4rem;
+}
+
+.ads-card__metric-value {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+}
+
+.ads-card__actions {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0.5rem;
+}
+
+.ads-card__actions .btn {
+    flex: 1 1 auto;
+}
+
+.ads-card__action-form {
+    flex: 1 1 auto;
+}
+
+.ads-card__action-form .btn {
+    width: 100%;
+}
+
+.ads-card--fallback .ads-card__content {
+    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(14, 165, 233, 0.06));
+    border-color: rgba(99, 102, 241, 0.2);
+}
+
+@media (min-width: 992px) {
+    .ads-card__metrics {
+        display: grid;
+        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
+        gap: 0.85rem;
+        align-items: stretch;
+    }
+
+    .ads-card__metric {
+        flex-direction: row;
+        align-items: stretch;
+        justify-content: space-between;
+        padding: 0.85rem 1rem;
+        border-radius: 0.9rem;
+        background: linear-gradient(135deg, rgba(226, 232, 240, 0.35), rgba(248, 250, 252, 0.4));
+        box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.18);
+        gap: 0.75rem;
+    }
+
+    .ads-card__metric-value {
+        margin-left: auto;
+    }
+
+    .ads-card__metric--probability {
+        background: linear-gradient(135deg, rgba(99, 102, 241, 0.18), rgba(56, 189, 248, 0.18));
+        box-shadow: inset 0 0 0 1px rgba(99, 102, 241, 0.26);
+    }
+
+    .ads-card__metric--probability .ads-card__metric-label {
+        color: #4338ca;
+    }
+
+    .ads-card__metric--probability .ads-card__metric-value {
+        justify-content: flex-end;
+        width: 50%;
+    }
+}
+
+@media (max-width: 575.98px) {
+    .ads-card__thumb--wide {
+        width: 100px;
+    }
+}
+
 @media (max-width: 991.98px) {
     .ads-tabs {
         width: 100%;
@@ -481,3 +673,18 @@
         width: 100%;
     }
 }
+
+@media (min-width: 768px) {
+    .ads-card__actions {
+        justify-content: flex-end;
+    }
+
+    .ads-card__actions .btn,
+    .ads-card__action-form {
+        flex: 0 0 auto;
+    }
+
+    .ads-card__action-form .btn {
+        width: auto;
+    }
+}