Enhance UX/UI proportions and unified design system across all devices

css/style.css

@@ -2583,7 +2583,119 @@ table {
     border-collapse: collapse !important;
 }
 
-/* 9. Standalone Editor Auto-Fit & Clean Scroll */
+/* ============================================================
+   Action Buttons & Card Proportions (Tapee University Design System)
+   ============================================================ */
+.card-tapi {
+    background: #ffffff;
+    border: 1px solid var(--border-color);
+    border-radius: var(--radius-lg);
+    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
+    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
+    position: relative;
+}
+
+.card-tapi:hover {
+    border-color: #cbd5e1;
+    box-shadow: 0 4px 12px rgba(30, 58, 138, 0.08);
+    transform: translateY(-1px);
+}
+
+.btn-action {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    gap: 5px;
+    padding: 6px 10px;
+    font-size: 11.5px;
+    font-weight: 700;
+    border-radius: 8px;
+    border: 1px solid transparent;
+    cursor: pointer;
+    white-space: nowrap;
+    transition: all 0.18s ease;
+    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
+    user-select: none;
+    -webkit-tap-highlight-color: transparent;
+}
+
+.btn-action:active {
+    transform: scale(0.96);
+}
+
+.btn-action-edit {
+    background: #fbbf24;
+    color: #78350f;
+    border-color: #f59e0b;
+}
+.btn-action-edit:hover {
+    background: #f59e0b;
+    color: #ffffff;
+}
+
+.btn-action-copy {
+    background: #3b82f6;
+    color: #ffffff;
+    border-color: #2563eb;
+}
+.btn-action-copy:hover {
+    background: #1d4ed8;
+}
+
+.btn-action-link {
+    background: #1e3a8a;
+    color: #ffffff;
+    border-color: #172554;
+}
+.btn-action-link:hover {
+    background: #1e40af;
+}
+
+.btn-action-import {
+    background: #10b981;
+    color: #ffffff;
+    border-color: #059669;
+}
+.btn-action-import:hover {
+    background: #047857;
+}
+
+.btn-action-stats {
+    background: #6366f1;
+    color: #ffffff;
+    border-color: #4f46e5;
+}
+.btn-action-stats:hover {
+    background: #4338ca;
+}
+
+.btn-action-delete {
+    background: #f43f5e;
+    color: #ffffff;
+    border-color: #e11d48;
+}
+.btn-action-delete:hover {
+    background: #be123c;
+}
+
+.btn-status-select {
+    background: #f8fafc;
+    border: 1px solid #cbd5e1;
+    color: #334155;
+    padding: 5px 8px;
+    font-size: 11.5px;
+    font-weight: 700;
+    border-radius: 8px;
+    cursor: pointer;
+    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
+}
+.btn-status-select:focus {
+    outline: none;
+    border-color: var(--primary-color);
+    box-shadow: 0 0 0 2px rgba(37,99,235,0.15);
+}
+
+/* Standalone Editor Auto-Fit & Clean Scroll */
 .editor-container {
     max-width: 960px;
     width: 100%;
@@ -2633,3 +2745,4 @@ table {
     }
 }
 
+