diff --git a/src/widgets/button.zig b/src/widgets/button.zig
index bde519c..a4c2eb2 100644
--- a/src/widgets/button.zig
+++ b/src/widgets/button.zig
@@ -105,6 +105,16 @@ pub fn buttonRect(ctx: *Context, bounds: Layout.Rect, text: []const u8, config:
         ctx.pushCommand(Command.rectOutline(bounds.x, bounds.y, bounds.w, bounds.h, theme.border));
     }
 
+    // Bisel 3D sutil: línea clara arriba, línea oscura abajo (inside)
+    if (bounds.h >= 4 and bounds.w >= 4 and !config.disabled) {
+        // Línea superior interna (highlight)
+        const bevel_light = bg_color.lighten(15);
+        ctx.pushCommand(Command.rect(bounds.x + 1, bounds.y + 1, bounds.w - 2, 1, bevel_light));
+        // Línea inferior interna (shadow)
+        const bevel_dark = bg_color.darken(15);
+        ctx.pushCommand(Command.rect(bounds.x + 1, bounds.y + @as(i32, @intCast(bounds.h)) - 2, bounds.w - 2, 1, bevel_dark));
+    }
+
     // Draw text centered
     const char_width: u32 = 8;
     const char_height: u32 = 8;
@@ -193,6 +203,16 @@ pub fn buttonStatefulRect(
         ctx.pushCommand(Command.rectOutline(bounds.x, bounds.y, bounds.w, bounds.h, theme.border));
     }
 
+    // Bisel 3D sutil: línea clara arriba, línea oscura abajo (inside)
+    if (bounds.h >= 4 and bounds.w >= 4 and !config.disabled) {
+        // Línea superior interna (highlight)
+        const bevel_light = bg_color.lighten(15);
+        ctx.pushCommand(Command.rect(bounds.x + 1, bounds.y + 1, bounds.w - 2, 1, bevel_light));
+        // Línea inferior interna (shadow)
+        const bevel_dark = bg_color.darken(15);
+        ctx.pushCommand(Command.rect(bounds.x + 1, bounds.y + @as(i32, @intCast(bounds.h)) - 2, bounds.w - 2, 1, bevel_dark));
+    }
+
     // Draw text centered
     const char_width: u32 = 8;
     const char_height: u32 = 8;
@@ -237,8 +257,8 @@ test "button generates commands" {
 
     _ = button(&ctx, "Click me");
 
-    // Should generate: rect (background) + rect_outline (border) + text
-    try std.testing.expectEqual(@as(usize, 3), ctx.commands.items.len);
+    // Should generate: rect (background) + rect_outline (border) + 2 bevel lines + text
+    try std.testing.expectEqual(@as(usize, 5), ctx.commands.items.len);
 
     ctx.endFrame();
 }